text:
Flown is a photography, text and sound exhibition and the finale of a year long project called Flying Solo, exploring independence in shared space.
In a contemporary experience that pushes us towards independence, isolation and spectacle Flying Solo sought the beginning of an intimate alternative.
Three dance soloists from contemporary, hip-hop and African dance researched expressing true self and the diversity of their art forms in shared space. Their research took them through performances in parks, theatres, forests and tents across the UK and Ghana, including Wanstead Flats and Epping Forest.
Flown brings together photographs from the performances by Photographer Alistair H M Simmons and sound and text from interviews with the dance soloists Tyrone-Isaac Stuart, Hayley J S Matthews and Nii-Tete Yartey, who were interviewed and supported by artist Martin J Gent.
Flown is presented by ENSEMBLE, a collection of dance, sound and visual artists who make dance performances and interventions that have intimacy, grace and freedom, lead by dancer Hayley J S Matthews.
Flown is supported by Arts Council England, DanceEast, the People's Forest at Waltham Forest London Borough of Culture, Noyam African Dance Institute, OpenEaling and the Peripheral Space Project.


HTC U Play
Guide Downloads
< < Menu
Selecting, copying, and pasting text
 1. Press and hold on a word.
 2. Drag the start and end anchors to highlight the text you want to select.
 3. Tap or Copy.
 4. In a text entry field (for example, while composing an email), press and hold at the point where you want to paste the text.
 5. Tap or Paste.
Sharing text
 1. After you have selected the text, tap or or Share.
 2. Choose where to share the selected text.
Was this information helpful?
Can't find what you're looking for?


text:
How to get commerce runs,commerce expo, Nabteb Expo questions and answer, Nabteb Conmerce Expo, Nabteb commerce runs, Nabteb Expo 2023
INSTRUCTIONS: ANSWER FIVE QUESTIONS ONLY
(i) Personal Interests and Aptitude: Individuals often choose occupations based on their personal interests, passions, and natural aptitudes. They are more likely to succeed and find fulfillment in a career that aligns with their skills and interests.
(ii) Education and Qualifications: The level of education and qualifications required for a particular occupation can influence career choices. Some occupations have specific educational requirements, such as degrees or certifications, which individuals need to meet in order to pursue those careers.
(iii) Economic Factors: Economic considerations, such as potential income and job security, play a significant role in occupational choices. People may opt for occupations that offer higher salaries, better benefits, or more stability in the job market.
(iv) Market Demand: The demand for specific skills and occupations in the job market can influence career choices. Some occupations may be in high demand, leading individuals to choose those careers for better job prospects and opportunities for growth.
(v) Social and Cultural Factors: Social and cultural influences, including family expectations, societal norms, and cultural values, can impact occupational choices. Certain occupations may be perceived as more prestigious or desirable in specific cultures or communities, leading individuals to consider those options.
(PICK ANY FIVE)
(i) It is particularly peculiar with cash on delivery (C.O.D.) transactions and cash with order (CWO) terms of payment.
(ii) It is capable of dealing in consumer durable goods only.
(iii) It is operated through the post office
(iv) Goods are delivered at the buyer's destination
(v) It is one of the means of passing the wholesaler and retailer by the manufacturer.
(vi) It makes use of catalogs.
(vii) It maintains a large warehouse.
(PICK ANY FIVE)
(i) Wide Customer Reach: Mail-order businesses can target customers across large geographic areas, even internationally. This allows them to access a broader customer base compared to traditional brick-and-mortar stores.
(ii) Cost Savings: Operating a mail-order business often incurs lower overhead costs compared to physical stores. There is no need for expensive retail space, and fewer staff members are required, resulting in potential cost savings.
(iii) Convenience for Customers: Mail-order businesses offer convenience to customers who can browse and shop from the comfort of their own homes. This accessibility can attract customers who value convenience and prefer not to visit physical stores.
(iv) Increased Sales Potential: By reaching a wider audience, mail-order businesses have the potential to generate higher sales. They are not limited by the constraints of physical store locations and can serve customers who might not have easy access to certain products.
(v) Flexibility in Operating Hours: Unlike traditional stores with fixed operating hours, mail-order businesses can accept orders 24/7. Customers have the flexibility to place orders at their convenience, without being restricted to specific store hours.
(vi) Personalized Marketing: Mail-order businesses often gather customer data and preferences, allowing them to personalize marketing efforts. By tailoring promotional materials to individual customers' needs and interests, they can enhance customer engagement and increase sales.
Business merging refers to the consolidation of two or more separate companies into a single entity. It involves combining the assets, operations, and ownership of the merging firms to form a new, larger organization.
(PICK ANY SIX)
(i) Synergy: Merging companies can leverage synergies by combining their resources, expertise, and market presence. This synergy can lead to increased efficiency, reduced costs, and improved competitiveness.
(ii) Market Expansion: Merging allows companies to expand into new markets or reach a wider customer base. By joining forces, companies can access new geographical regions, customer segments, or distribution channels.
(iii) Economies of Scale: Merging can lead to economies of scale, where the combined entity benefits from cost reductions due to increased production or purchasing power. This can result in lower costs per unit and improved profitability.
(iv) Diversification: Merging companies may seek diversification to reduce risks associated with a single industry or market. By merging with a company in a different sector or with complementary products, they can spread their risk across multiple areas.
(v) Access to Resources: Merging can provide companies with access to additional resources, such as technology, intellectual property, or specialized knowledge. This can enhance their capabilities and competitiveness.
(vi) Increased Market Share: Merging allows companies to consolidate their market share and gain a larger portion of the market. This can lead to improved bargaining power with suppliers, increased pricing leverage, and enhanced market dominance.
(vii) Strategic Alignment: Merging can align companies strategically, combining their strengths to achieve common goals. Companies may merge to pursue a shared vision, capitalize on mutual strengths, or combine complementary capabilities.
The stock exchange is a centralized marketplace where securities such as stocks, bonds, and derivatives are bought and sold. It provides a platform for investors and traders to trade securities, ensuring liquidity, price discovery, and transparency in the market.
(PICK ANY SIX)
(i) Trading Platform: The stock exchange serves as a regulated platform for the trading of securities. It provides a centralized marketplace where buyers and sellers can execute transactions and trade shares of publicly listed companies.
(ii) Price Discovery: The stock exchange facilitates price discovery by bringing together buyers and sellers. Through continuous trading and matching of orders, the exchange determines the market price of securities based on supply and demand dynamics.
(iii) Liquidity Provision: The stock exchange enhances liquidity in the market by offering a platform where investors can easily buy and sell securities. It ensures that there is a ready market for securities, enabling investors to convert their investments into cash when desired.
(iv) Market Regulation: Stock exchanges enforce rules and regulations to maintain fair and orderly trading. They set listing requirements, monitor compliance, and impose penalties for market manipulation or fraudulent activities, ensuring investor protection and market integrity.
(v) Listing and Capital Formation: Companies can list their securities on the stock exchange to raise capital from public investors. By issuing shares, companies can raise funds for expansion, research and development, or other business initiatives.
(vi) Access to Investment Opportunities: The stock exchange provides individuals and institutions with access to a wide range of investment opportunities. It allows investors to diversify their portfolios by investing in different companies, sectors, or asset classes.
(vii) Information Dissemination: Stock exchanges provide timely and accurate information about listed companies, including financial reports, corporate announcements, and news updates. This helps investors make informed decisions and promotes transparency in the market.
Money can be defined as a medium of exchange that is widely accepted in transactions for goods, services, and debts. It is a generally recognized and agreed-upon form of payment within a specific economic system.
(PICK ANY FIVE)
(i) Medium of Exchange: Money serves as a medium for facilitating the exchange of goods and services. It enables transactions by providing a commonly accepted unit of value that both buyers and sellers recognize and trust.
(ii) Unit of Account: Money serves as a standard unit of measurement for assigning and comparing the value of goods, services, and assets. It allows for consistent pricing and financial calculations.
(iii) Store of Value: Money can be stored and held over time as a form of wealth. It retains its value and can be used for future purchases or investments. However, inflation can erode the purchasing power of money over time.
(iv) Divisibility: Money is divisible into smaller units, allowing for flexibility in transactions of different sizes. It can be divided into smaller denominations to accommodate various price levels and facilitate trade.
(v) Portability: Money is easily portable and can be carried or transferred from one location to another. It provides a convenient means of payment for transactions, regardless of distance.
(vi) Durability: Money is durable and able to withstand physical wear and tear. It should maintain its value and functionality over time, ensuring that it can be used repeatedly for transactions.
A cheque is a written, unconditional order issued by an account holder (drawer) to a bank or financial institution (drawee) to pay a specified sum of money to a designated recipient (payee). It serves as a negotiable instrument, allowing the transfer of funds from one party to another.
An agent is a person or entity authorized to act on behalf of another individual or organization, known as the principal. The agent acts within the scope of their authority to perform specific tasks or make decisions on behalf of the principal.
(PICK ANY THREE ONLY)
(i) Real Estate Agent
(iii) Talent agent
(iv) Travel agent
(v) Power of Attorney Agent
(PICK ANY FIVE ONLY)
(i) Compensation: The principal is responsible for compensating the agent for their services as agreed upon. This compensation may include a salary, commission, fees, or other forms of payment outlined in the agency agreement.
(ii) Reimbursement: The principal should reimburse the agent for any authorized expenses incurred while carrying out their duties. These expenses may include travel costs, marketing expenses, or other necessary disbursements made on behalf of the principal.
(iii) Indemnification: The principal has a duty to indemnify the agent for any losses, liabilities, or expenses incurred as a result of authorized actions performed on behalf of the principal. This protects the agent from personal financial harm while acting within their authorized capacity.
(iv) Cooperation: The principal should provide the agent with the necessary information, resources, and support required to fulfill their duties effectively. This includes sharing relevant information, providing access to relevant systems or

source: m-a-p/FineFineWeb


text:
This paper analyzes whether participation in formal and informal community activities helped household in Indonesia mitigating the impact of the 1998 economic crisis and increasing the probability of household head being employed. The paper uses the 1997 and 2000 round of Indonesian Family Life Survey (IFLS) to capture the impact of economic crisis on household welfare. The empirical results do not seem to support those hypotheses. Using number of children in each household as instrumental variable to solve the reverse causality and omitted variable bias problems, we find no statistically significant effect of community participation on the ability of households to mitigate expenditure shocks and to smooth consumption. The large magnitude and universal nature of the shock might explain why social capital did not help households. Participation in community activities also does not seem to significantly explain the probability of household heads being employed in the period of the crisis.
Better Together â€" or not? Community Participation, Consumption Smoothing and Household Head Employment in Indonesia
Public Access Documents


text:
This article examines the experience of stateless people in Thailand and how they overcome the problem of stigma. In 2020, there were 480,000 people in Thailand classified as stateless. They are individuals who migrated from neighboring countries and who settled mainly along the border with Myanmar. They are mostly members of hill tribes (such as the Akha, Lahu, Hmong, Lisu, Yao) with distinct languages and culture. They do not have Thai identification cards (IDs), which are required to access public services, including health care and higher levels of education, apply for professional jobs, and sell property.
The authors define stigma as "a negative social attitude attached to a characteristic of an individual who may be regarded as having a mental, physical, or social deficiency." The authors employ the framework integrating normative influence on stigma (FINIS), which has three layers: a microlayer focusing on individual characteristics; a mesolayer focusing on family and community contexts; and a macrolayer focusing on the stigma embedded in a larger national cultural context.
The analysis is based on data from qualitative and in-depth interviews with 51 stateless individuals living in five remote hill tribe villages along the border with Myanmar. Sixty-nine percent of the participants were female, 67 percent had no education, 57 percent were farmers, and the participants had a median monthly income of US$93.
- There are various ways in which stigma affects the lives of stateless people. They find it difficult to request assistance and assert themselves (e.g. in a healthcare setting) because they fear mistreatment or drawing attention to themselves. They experience unequal treatment and are treated more poorly than Thai citizens and other hill tribe people who have acquired Thai IDs. They feel that they have limited options for improving their lives.
- Avoidance, trying to get a Thai ID, and practicing speaking Thai are ways in which stateless people cope with stigma. The stateless population reported several approaches to handling stigma, mainly by avoidance, for example not traveling outside their village, not talking with people with whom they are not familiar and keeping track of events that could result in exposure. Trying to get a Thai ID and practicing speaking Thai were other strategies employed to cope with stigma.
- Participants expressed their single goal of obtaining a Thai ID to help them overcome problems of stigma.

source: openbmb/Ultra-FineWeb


text: Supporting ethical and innovative nanotechnology Development and management of strategic research agendas (SRAs) are governed by a variety of factors. EU-funded researchers analysed the challenges faced by the emerging nanotechnology sector providing important insights for scientists, businesses and policymakers. Industrial Technologies © Thinkstock In order to investigate the multi-faceted nature of new business model creation using emerging nanotechnology as a touchstone, EU-funded researchers initiated the 'Strategic management of emergent nanotechnologies' (Smenatech) project. Scientists focused on the study of how individual agents develop strategic business plans in the context of social and economic parameters related to nanotechnology. Smenatech evaluations of EU nanotechnology policy suggested that the high degree of collaborative diversity is creating managerial challenges requiring those involved to develop strategic management capabilities to support technological innovation. Investigators highlighted the various temporal phases associated with the search by entrepreneurs for previously unrecognised opportunities on both the supply and demand sides of technology development. Specifically, the search process proceeds from an open search to a transformative phase to a directional or focused agenda with the process differing greatly in terms of guidance available at each phase. The result is the creation of different types of opportunities at each phase. Finally, no discussion of emerging technologies would be complete without evaluation of ethical components of the SRA. The so-called agent-based approach to ethics in business requires that moral excellence be the goal rather than the constraint. In other words, actions are guided by a rational pursuit of virtue rather than limited by need to conform to certain rules of conduct or a code of ethics. Smenatech research suggests that the delicate interplay among business strategy, ethics and professional identity is dependent on the uncertainty of impact of the associated technologies. The rapidly growing field of nanotechnology is associated with numerous business challenges related to strategic management, innovation pathways and ethical considerations. Smenatech investigators shed light on the challenges and their interrelationships, contributing important knowledge that should be useful in guiding scientists, managers and research policymakers toward ethical and effective innovation partnerships.


Cart (Loading....) | Create Account
Close category search window
Nonlinear quantization effects in the frequency domain complex scalar LMS adaptive algorithm
Sign In
Formats Non-Member Member
$31 $13
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button
puzzle piece
Learn more about:
IEEE membership
IEEE Xplore subscriptions
2 Author(s)
Sherwood, D. ; Rockwell International, Anaheim, CA ; Bershad, N.J.
Nonlinear quantization effects in the frequency domain complex scalar LMS adaptive algorithm are analyzed by using conditional expectations. The probability density function of the quantizer input, conditioned on the weight, is derived. The density is applied to finding the conditional characteristic function and the Mth conditional moment at the quantizer output. The first and second conditional moments of the quantizer output are used to derive difference equations that approximate the dynamical behavior of the first and second weight moments. These difference equations are solved numerically and compare favorably to simulation results. A model of the quantizer as an additive noise source is of no analytical value since the quantizatian noise has negligible effect on the mean square error when the model is valid. Finally, a design approach is proposed for selecting the number of bits in the weight accumulator. The moment equations are also used to determine the algorithm mean square error for different quantizer step sizes and the optimum algorithm step size μ when a fixed amount of input data is available for adaptation.
Published in:
Date of Publication:
Feb 1986
Need Help?


text:
African Journal of Food Science Research
African Journal of Food Science Research ISSN 2375-0723 Vol. 10 (2), pp. 001-010, February, 2022. © International Scholars Journals
A review of shelf-life extension studies of Nigerian indigenous fresh fruits and vegetables in the Nigerian Stored Products Research Institute
Ubani, Ozioma Ndubunma* and Okonkwo, Ego Ulu
Nigeria Stored Products Research Institute, 3 km Asa Dam Road, P. M. B. 1489, Ilorin, Kwara State, Nigeria.
Accepted 23 August, 2021
The Nigerian Stored Products Research Institute has been conducting research in technology development suitable for post-harvest handling of Nigerian indigenous fruits and vegetables for extension of the shelf-life of these commodities, retention of nutrients and aesthetics of fresh produce in storage, enhancement of the nutritional status and earning capacity of both the rural and urban poor through proper handling, storage, marketing and consumption of fruits and vegetables; and production of the best quality fruits/vegetables for local and export markets over three decades. The research work carried out and the technologies developed for handling of Nigerian indigenous fruits/vegetables post-harvest for the farm, market and domestic levels of storage are discussed subsequently. These indigenous fruits and vegetables are prone to chill injury when kept at low temperatures. However, storage structures developed by the Nigerian Stored Products Research Institute over the years, such as the evaporative coolers and cooler baskets which could record some temperature drop from the ambient, have been used in extending the shelf-life of fresh fruits and vegetables. Packing (wrapping) materials have also showed promise in extending shelf life of Nigerian indigenous fresh produce. The season and time of harvest also play an important role in storage of fruits and vegetables. Garden eggs have very short shelf-life of 7 days during the dry harmattan months in Nigeria. Fresh fluted pumpkin Telfairia occidentalis 'ugu' leaves can only be kept for 6 days at 29.1°C and 64.5%rh beyond which physiological breakdown of tissues lead to deterioration and total loss. Fresh pawpaw (Carica papaya L.) fruits, individually wrapped with waxed paper (TIXO) kept at ambient conditions in plastic crate, have a shelf-life of 17 days as compared to fresh pawpaw fruits in evaporative coolers for 7 days. In hot dry weather of the Northern parts of Nigeria, oranges stored in evaporative cooler (EC) Metal-in-Brick wall have a shelf-life of 10 weeks. Adoption of these technologies will play a very vital role in post-harvest loss reduction in fresh fruits and vegetables along the food chain, increase income and improve nutrition for all stakeholders. The interventions to maintain food quality and safety for reduction of postharvest losses in Nigerian indigenous fruits and vegetables through Research activities in NSPRI for three decades are the focus of this review paper.
Key words: Postharvest, technologies, fruits, vegetables, shelf-life.
List of Other Journals
PDF Downloaded 187


text:
This summary, written under the aegis of the Center for Advocacy on Stigma and Marginalisation (CASAM), presents the preliminary results of the first pan-India survey on sex workers. These preliminary findings have been developed for an event in Mumbai on 30 April 2011. The authors appreciate the opportunity to discuss their research with an audience of critical stakeholders. A report which provides their final analysis and data relating to male, trans sex workers, sexuality, stigma and discrimination as well as the 0.5% of 15-17 year olds in this sample will be published later in the year. For the final report please contact _EMAIL_.
Over two years a sample of 3000 female and 1355 male and trans persons in sex work was drawn from fourteen states.
In the wake of HIV, there has been a renewed engagement with sex workers as subjects of research. However this research has been carried out to fulfil a range of purposes beyond those of interest to sex workers and findings have not always reflected the lives of sex workers, about which there are many assumptions. Studies of sex workers often reduce complex lives into simplistic binaries, most commonly: an understanding of female sex workers as freely engaging in, or forced into sex work. This is both inaccurate and insufficient. Much relevant information is ignored such as family and social-economic background, caste and religious segregations, sexual identities, marital status, not to mention work identities other than and in addition to sex work. This survey uses multiple variables to understand how their lives get constructed prior to and in sex work.
You can download this 14 page PDF resource above. This resource is in English.


text:
The theme of the 2021 Assembly is Connecting Space Research for Global Impact and Australia stands to use the Assembly to help deliver such impact at a time when Australia's space sector, assisted by the new Australian Space Agency, is rapidly gathering momentum.
The Mission of COSPAR is first and foremost Service to the International Space Science Community, in their pursuit of a vibrant international space research effort, conducted without impediment from geopolitical tensions or differences. The space science community, in turn, is dependent upon the space programs of their nation or region and thus the Mission of COSPAR includes Service to Developed Space Programs and Service to Developing Space Programs.
This is particularly relevant to Australia - the Assembly represents the next significant aiming point for Australia to showcase our space sector growth, with particular emphasis on research and innovation to support industry and worldclass space science, in the context of what by then will be a young but rapidly maturing Australian Space Agency. Australian space activities will be showcased to the world of space research. This will lead to strengthening existing and growing new ties between Australia and international partners, resulting in collaborations and partnerships that will assist both the innovation and industry parts of the sector.
Summertime in Australia is sensational. The annual Christmas holiday period is fully embraced. It is the annual school holiday period and Sydney will be alive with families and friends out and about in the sunshine. The perfect setting for COSPAR-K, a Space Park initiative that will run alongside COSPAR 2021. We anticipate a plethora of opportunities for both teachers and students to explore activities while developing their individual passions, creativity, interest and purpose. With the world of space research coming to Australia at that moment, the opportunity to stimulate the public and inspire the next generation of science and technology talent through exposure to space is enormous.
Exclusive Pre-Event Videos for Registered Delegates
Meet three Interdisciplinary Speakers as they share insights into their career and provide a preview of their presentation at COSPAR-2021-Hybrid.
|Deadline to register @ standard early bird rate
31 December 2020
|Presenter Full video due
31 December 2020
|Facilitated training with the on-line system for chairs, speakers and participants
Early January 2021
28 January to 4 February 2021
|Access to pre-recorded content opens
27 January 2021
|Access to pre-recorded content closes
31 December 2021


ESD Safe Plastic
Advantages of using esd safe plastic materials
ESD safe plastic also referred to as static control plastics is loaded with special fillers and alloys. Here fillers are added generally not chemically bonded to the nonconductive polymer.

What is esd safe plastic
ESD safe plastic also referred to as static control plastics is loaded with special fillers and alloys. Here fillers are added generally not chemically bonded to the nonconductive polymer. ESD safe fillers provide a conductive path for the electric charge and carbon powders are naturally conducive with enough loading, particles touch each and form a conductive path through the nonconductive plastic matrix. Common plastics are insulators. These materials prevent the flow of electrons across their surfaces or through their volumes and contrast with conductors such as metal which readily support electron flow. On the other hand, esd safe plastics have electrical resistance properties between those of insulators and conductors.

esd safe plastic

Why is esd safe plastics important?
ESD safe plastic is so important because these materials can reduce the discharge of static electricity and prevent damage to products as well. During the manufacturing process, there lies the potential for costly delays and repairs. In these situations, creating esd safe areas either by taking precautionary measures or by using materials that are themselves esd safe can save time and money and provide an effective products as well. It also increases the efficiency of workflows and operations. Static control plastics are electrical resistant. They have to dissipate static controlled way and by the addition of conductive fillers or fibers made from stainless steel or carbon. And the efficiency of these plastics dissipate static is significantly greater than the insulators.
Basic principles of esd safe plastic
Here, are suggested some general principles of esd safe plastics.
 - ESD safe plastic is designing products and gathered to be as robust as reasonable from the effects of ESD and also protects products from the ESD.
 - It defines the level of control needed in your environment.
 - It identifies and defines such electrostatic areas where you will be handling ESD susceptible items.
 - The major advantage is that it reduces electrostatic charge generation by reducing and eliminating static generating processes. It also provides appropriate paths to reduce charge generation and accumulation.
 - It also dissipates and neutralizes by grounding, ionization, and the use of conductive and esd safe materials.
 - And protect products from the ESD with proper grounding and shunting.
Application area of esd safe plastics
ESD safe plastic is specially used in the manufacturing of electronics. It is extensively used in electrical appliances, mechanical automation, automotive instrumentation, electrical parts, high-speed train, boats, military applications, and others fields. There are various esd plastics products available including- ESD Delrin, ESD POM Compound, PEEK ESD Sheet, Graphene Enhanced Plastic Compound, etc. From these, ESD Delrin gives surface resistivity of 10E4 -10E9 ohms/sq and POM carbon nanotube has worthy wear resistance, self-lubrication, and best mechanical properties. In such an environment, where sometimes thousands of electronics are created each day required each serves a specific purpose in a specific device or component creation. ESD-safe plastics can be used safely and without worry. It also ensures product quality, is on time, and is cost-effective.

esd safe plastic

Best Place for buying esd safe plastics materials
Many material companies provide esd safe plastic materials but INCHR is the best place for these products because it specializing in anti-static plastic and ESD plastic sheets for 12 years. It is a professional manufacturer company of ESD plastics. The other products in our company include antistatic compound, conductive compound; anti-static masterbatch; anti-static sheet; and static film. These products are widely used in consumer electronics, medical equipment, automotive, etc. It acts as an agent and distributor all over the world. Our professional sales team helps the customers to get proper service and is committed to the satisfaction of our customers.

Recommended Articles
conductive pvc
permanent antistatic additives
carbon fiber reinforced thermoplastic
CONDUCTIVE PVC
Scroll to Top


SciELO - Scientific Electronic Library Online
vol.14 issue6Influence of volleyball in the bone mineral density of female adolescentsAnalysis of localized muscular fatigue in athletes and sedentary subjects through frequency parameters of electromyographic signal author indexsubject indexarticles search
Home Pagealphabetic serial listing
Revista Brasileira de Medicina do Esporte
On-line version ISSN _PHONE_
AGRESTA, Marisa Cury; BRANDAO, Maria Regina Ferreira and BARROS NETO, Turíbio Leite de. Physical and emotional causes and consequences of career termination in sports. Rev Bras Med Esporte [online]. 2008, vol.14, n.6, pp. 504-508. ISSN _PHONE_.
INTRODUCTION: Elite athletes will have to face sport career termination sooner or later, and this is a crucial and inevitable process that brings about changes in the occupational, financial, social and psychological spheres of their lives, which can be followed by emotional distress. OBJECTIVE: The present study had the aim to research how former Brazilian basketball and professional soccer players have experienced retirement in sports career as well as its causes and consequences. MATERIAL AND METHODS: 79 former elite male athletes (soccer and basketball players) with mean age of 51.75 ± 8.85 years old were assessed. They have been professional athletes for 18.22 ± 4.66 years and had their career termination at about 34.36 ± 4.42 years. A semi-structured interview frame was used and the data were analyzed according to the answers frequency of occurrence for each interview item. RESULTS: It was observed that for 75.9% of these athletes the retirement from sport was their own choice. Age (49.4%) and appearance of other interests (43.0%) were the most frequent reasons related to the retirement. However, they have experienced feelings of sadness (50.6%) and resignation (36.7%) and 43% of the former athletes have experienced worsening in their physical condition after career termination. CONCLUSION: We can conclude that the hereby-assessed athletes have experienced a long sports career, but their retirement caused feelings of sadness. On the other hand, old age itself is a limitation for the practice of elite sports, and its acknowledgement has led to resignation.
Keywords : retirement; sports [psychology]; soccer; basketball.


text: "With its star-shaped beak and five-toed claws, the Spiderbird is an anomaly of the avian kingdom. It previously lived a strange life bound in solitude. Restricted to specific habitats, the Spiderbird has trouble mating, females ovulate only briefly and males do not survive copulation in order to spawn again. Lady Spiderbirds must produce many eggs to lower the mortality rate of its kind. These gelatinous eggs are highly vulnerable to predation, so she protects her sacred brood in massive, elaborate nestwebs ranging up to five feet tall and several feet wide. Thankfully, the life of the Spiderbird is looking less grim as a new phenomenon has recently been uncovered. Flocks of likeminded mother Spiderbirds are intertwining nestwebs to further insulate and cradle their clutch while trapping predators. This new adaptation showcases the deep capacities of motherhood, partnership and the intrinsic will to survive. This communal nestweb represents the first of its kind observed in captivity."


text:
A partnership between Albuquerque Public Schools and the Greater Albuquerque Chamber of Commerce.
Close the Education Achievement Gap!
If a child cannot read, the world is closed to them.
Poverty directly relates to literacy rates
- Children in poverty average 25 total hours reading before Kindergarten
- Children not in poverty average 1000 total hours reading before Kindergarten
3rd grade reading levels indicate future:
- Dropout rate
- Crime rate
Having reading modeled improves students' reading ability
You can change a child's life
The 2004-2005 Albuquerque Reads results are IMPRESSIVE!!!
-At the beginning of 04/05 school year, only 3% of students were reading at or above grade level.
-At the end of the school year 72% were reading at or above grade level and another 21% were at the cusp of reading at grade level
-The students participating in this program will enter the first grade reading at or above the first grade reading level
- Reading overcomes poverty
- The more educated our future generation is, the better the quality of their lives
- With a more educated workforce we can build a better, stronger community
GACC Partnering with APS in Albuquerque Reads •Albuquerque Reads is a structured program
-Focus on Title I schools where 85 % of children receive free or reduced cost of lunch
-Early intervention proven successful
-Explicit instruction and guided practice
Modeled after Columbus Reads
-High poverty schools used program to help pass the statewide 4 th grade proficiency test
-Albuquerque Reads developed by Educators at Bel Air Elementary School and tailored to each individual student's needs
-Training materials aligned with kindergarten reading standards and classroom instruction.
-The program meets state and district standards
Make a difference!
We are all better off when Albuquerque Reads
Help a child learn to read…. and you open a new world
Volunteering for Albuquerque Reads:
- 70 minute commitment each week
- October 3, 2005 – May 8, 2006
- Three schools
- 800 Volunteers needed
- Three hour training session
- Required Background checkfingerprinting- paid by the Greater Albuquerque Chamber of Commerce.
- 10 minutes guided instruction with site coordinator
- Two students-30 Minutes each every week
–10 minutes Reading
–10 minutes Writing
–10 minutes Literacy activity (skills development)
- WHERRY Elementary School– Monday, Tuesday and Thursday of each week 9:50 am to 11:05 am
- ATRISCO Elementary School– Monday, Tuesday and Wednesday of each week 8:45am to 10:00 am
- BEL AIR Elementary School – Completely filled
- Attendance each week is imperative to success!
How to become a tutor:
Click here to download the enrollment form.
UNM staff members should submit form to Karin Retskin, _PHONE_, _EMAIL_.
Click here to down an Albuquerque Reads brochure.
-Call 505 843-READ (7323)
-Call _PHONE_
-Web site: _URL_ Click on the Albuquerque Reads button
UNM staff members:
Contact Karin Retskin, _PHONE_, _EMAIL_
Kevin Stevenson, _PHONE_, _EMAIL_
Thank you for your commitment to this program--The Greater Albuquerque Chamber of Commerce and Albuquerque Public Schools
Albuquerque Chamber of Commerce

source: HuggingFaceFW/fineweb-edu


text:
History of Rochester Hills
Rochester hills is located near the cities of Rochester, Auburn Hills, Pontiac and Troy. Early settlers of Rochester Hills, MI came from regions such as New York, New England and portions of Southern Canada. The first settler to arrive in Rochester Hills was Joshua Graham in 1817. Early development was successful due to usage of Native American Trails to travel, as well as the need for workers in order to finish the Erie cannel project that was designed to finish in modern day Rochester Hills. Rochester hills was originally apart of Avon Township (_PHONE_), village of Rochester (_PHONE_), city of Rochester (_PHONE_) and finally became the city of Rochester Hills on November 20,1984.
Early settlers came to the Rochester Hill region to clear land for farming and would use the local water sources to become an early industrial center. Using the nearby water sources of the Clinton River, Stoney Creek, and Paint Creek early settlers were able to construct water mills that helped the production of the region as well as the population by providing more work and more regions to settle.
The American Civil War and on:
During the later half of the 19th century Avon Township dealt with a few significant events in its history. From 1861 to 1865 the American Civil War for things. Brave men of Avon Township accepted "Lincoln's call for arms" and joined the Union Army, like many of their fellow Michiganians. Production was now being shifted from building luxury items to items needed for the war effort such as ammunition, uniforms, weapons and increasing the food stores of the Army to feed the troops. After the war, when everyday life was reestablished as if the war never existed, the village of Rochester was formed in 1869 and was named Rochester in honor of Rochester, New York were many settlers originated from.
Another major event to hit the village of Rochester area is the Blizzard of 1886, the biggest snowstorm to hit Michigan. The snowstorm came unexpectedly and caused quite a few problems. Railroads were blocked with the large amount of snow that had fallen. At the end of the day of April 6, 1886 there was 24.5 inches of snow on the ground. Areas of the Rochester hills region were completely cut off due to the excess amount of snow. With all the snow that had fallen and the high winds and low temperatures associated with blizzards there were no fatalities recorded and within a few days the region returned to its normal climate for that time of year.
The Great Depression:
With many years passing a significant event that affected not just Avon Township and the Rochester hills area was the Great Depression. During the Great depression many local businesses shut down due to the harsh economy and the lack of revenue. A major blow to the local economy was when the Detroit United Railway was shut down. Many men relied on this company in order to support their families. With FDRs tactics to beat back the great depression many men joined the Civilian Considerations Corp, which would give many a last minute lifeline and would help make beneficial and lasting improvements to numerous regions. The CCC is credited on planting a great many number of trees in both public and private parks throughout our nation. When the war finally made its way to the United States men were sent to fight for our nation and the women took over day-to-day operations in order to keep the town running. With Avon Township focusing on the war effort, jobs quickly returned and commerce resumed as it did before the Great Depression.
Rochester Hills is born:
In the following years Avon Township faced many changes. In 1966 the city of Rochester was from from Avon Township. Shortly after its forming Rochester effectively annexed approximately 2.2 square miles from Avon Township. With many to reclaim its land it had lost as well as receive the same recognition of city status like Rochester to be on equal footing. In May 1984 a city charter was approved and on November 20, 1984 Avon Township became the city of Rochester hills.


text:
¹ Source: wiktionary.com
Definition of Superromantic
Click the following link to bring up a new window with an automated collection of images related to the term: Superromantic Images
Lexicographical Neighbors of Superromantic
Literary usage of Superromantic
Below you will find example usage of this term as found in modern and/or classical literature:
1. Polynesian Researches: During a Residence of Nearly Eight Years in the by William Ellis (1832)
"... and fabulous stories of their so incorporated with their tradition. of its superromantic adventures,..."


text:
Multiplication can Increase or Decrease a Number
Question: Does multiplication always increase a
Yes it does; take the number 8, for example:
2 Ã— 8 = 16
3 Ã— 8 = 24
4 Ã— 8 = 32
In each it is getting larger, so, yes, multiplication
clearly increases a number.
No it increases a number only under certain
Multiplying any positive number by a whole number
greater than 1 will always increase its value see
the example opposite; but consider
; here the number 8 is reduced.
So, multiplying can have a reducing effect when multiplying a
positive number by a fraction which is less than one. But this
can still be confusing. While we accept the above, the concept of
' a number times 8' continues to be perceived as an increase. How
then can we attach a meaning to so that this will be
perceived as decreasing?
When multiplying by a whole positive number, e.g. 6 times 5,
we understand this as being 5 added over and over again, how ever
many times six times in this example. But this
interpretation of times does not quite work with fractions. If we
ask how many times, the answer is "not quite once".
Again we need to put the term multiplying into a context with
which we can identify, and which will then make the situation
We want to buy 30 roses which are sold in bunches of 5, so we
ask for "6 of the 5-rose bunches". In this way, the
word times also often means of. If we try using the word of when
times appears to have an unclear meaning, we get of 8 rather than times 8. Indeed we know
what of 8 means
So, by using of instead of times we are able to understand the
concept of multiplying by a fraction and how this can have a
reducing effect when the fraction is smaller than 1.
This also helps us to understand how we multiply by a
fraction, and why the method works:
the 4 which results from (or of 8) can be reached by
dividing 8 by 2;
similarly, the 5 which results from (or of 15), (or a third of
fifteen) can be reached by dividing 15 by 3.
Generalising this result gives:
When your bank balance is +4 pounds you have Â£4.
When your bank balance is 4 pounds you owe Â£4.
Owing is the opposite of having, so we find that we can
associate the concept of'minus' with '(the) opposite (of)'. This
also works in reverse.
Thus, ( -4) Ã— 8 means " owing Â£4, eight times
over" or "owing Â£32" which is - Â£32.
Now - 32 is smaller than 8, so we have illustrated another
case where multiplying has a reducing effect, i.e. when
multiplying by a negative number.
Note that, using the method shown above, it follows that -1 Ã—
8 = - 8, and vice versa.
Are the following statements:
- sometimes false
- always true and always false
- sometimes true
- Multiplication of a positive number by a number greater
than 1 always increases the number.
- Multiplication of a positive number by a positive number
between 0 and 1 always increases the number.
- Multiplication of a negative number by a positive number
always increases the first number.
- Always true
- Always false, as multiplication of a positive number by a
number between 0 and 1 will always reduce the number.
- Sometimes false and sometimes true; e.g. for the number
8, 2 Ã— (-8) = -16, so the number is decreased,
whereas the number increases in the example below:


text:
Getting Full Performance from Trickling Filters and CO2 Strippers with the Right Water Distribution System
Trickling filters and CO2 strippers are common devices in recirculating aquaculture systems. They are often referred to as packed towers. The performance of these towers is controlled by:
The distribution of water is the most commonly neglected and least understood aspect of the design of packed towers. Poor water distribution is often the primary cause for poor performance and high maintenance costs for packed towers. A well designed tower will have an even water distribution across the entire packing surface. For a biofiltration system, this gives all of the microorganisms an equal and consistent supply of nutrients and oxygen. For a stripping tower, even water distribution provides a uniform water film on all of the packing for maximum gas transfer.
Poor water distribution can lead to the following problems:
If the water distribution is not done correctly, no other changes will bring the tower up to full performance. On the other hand, improving the water distribution in a tower is a very cost effective way to get more performance out of a system. Although the water distribution system is a key element in the design of a tower, it is a relatively small part of the system cost. Usually, it is less than 10% of the cost. If a distribution system only wets half of the media, the tower must be twice as large to get the same performance as a system that gives complete coverage. It cannot be overemphasized that an even distribution of water is essential to obtain full performance from a packed tower.
Water distribution designs that are less than optimum include the use of the following methods:
Here is a worse case example. Water is dumped from a pipe at a single point into a vessel.
Here is an actual example of a bad water distribution system that we noticed during a tour of a public aquarium. Notice that none of the media is being wetted. Why bother building it?
Spreading the water out evenly doesn't happen by accident or magic. A good water distribution system will typically consist of one of the following three designs:
Design 1. - A piping system with square pattern, solid cone spray nozzles. The spray patterns touch at the edges.
Design 2. - A piping system with round or square hollow cone spray nozzles. The nozzles will be spaced to provide overlapping patterns.
Design 3. - A flat pan or tray holding a few inches of water with target nozzles installed in the bottom. The spray patterns from adjacent nozzles will overlap.
There are advantages and disadvantages for each type of system.
This system is simple to design and relatively easy to construct. It can provide even coverage depending on the quality of the spray pattern. The use of a pipe system allows for unrestricted air movement and relatively easy access to the packing media. The main disadvantage is that these systems typically require higher head pressures to operate well. The pressure drop through the nozzles is usually around 5 – 15 ft. of H20.
This system is also simple to design and relatively easy to construct. If it is done properly, it will provide a very even water distribution. Head loss will be equal to or less than design 1. The disadvantage of this system is that a larger fraction of the water will impinge on the wall of the vessel. If the vessel is large then this wall fraction will be relatively small. If the vessel is small however, this fraction can be more substantial.
This system can be a little more complicated to design due to the structural requirements. The weight of the water in the pan must be well supported. The big advantage to this design is the very low head requirement. Pan type systems can operate with 12" of total head loss. Other disadvantages of this system are the restriction of air flow for counter flow towers and the difficulty of observing or accessing the media.
The ideal nozzle for our applications will have:
1. An even water distribution pattern
2. An open, clog resistant flow path
3. A low head loss
4. A low cost
5 Standard pipe thread attachment
6. Good impact resistance
7 Corrosion resistance to salt water
8. Good performance under a wide range of flow rates
A nozzle should not:
1. Provide a fine mist or fog of small droplets
2. Have small, easily clogged flow passages.
3. Throw the water a long distance.
4. Have moving parts.
This is an example of a nozzle that fits the Design #1 system. This picture shows the bottom of the nozzle. The cost of this nozzle is about $15.00. It has a 2" male NPT connection. It is injection molded from ABS or polypropylene.
Here is a round pattern nozzle for Design #2. The cost of this nozzle is about $4.00. It has a 1.5" male NPT connection. It is injection molded from polypropylene.
This is a square pattern nozzle for Design #2. The cost of this nozzle is about $4.00. It has a 1.5" male NPT connection or a 1.5" self taping, tapered thread. It is injection molded from polypropylene.
Here is a nozzle for Design #3. This nozzle fits in a hole in a pan. It has a two piece design that locks itself into the pan. Typical spacing is 4 – 12 inches on center, depending on water loading. The cost of this nozzle is about $4.00. It is injection molded from polypropylene.
In order to design a good system, one needs good data. Here is a typical flow vs. pressure chart. This chart allows the designer to choose the number of nozzles that are needed for a given flow at the available pressure. If the flow per nozzle is known, one can determine the head loss through the nozzle. Although the pressure is shown on the X axis, it is the dependent variable.
After the number of nozzles, operating pressure and flow is known, the correct spacing above the media must be determined. A diagram showing water spread is very helpful. Here is a typical example.
Design Example 1
Using the above charts we can design a distribution system for a typical CO2 stripper. The proposed tower has a 4 ft. x 4 ft. plan area and a flow rate of 232 gpm. If we divide the tower into 4 equal squares of 2 ft. x 2 ft. then the flow per nozzle will be 58 gpm. Using the chart for flow vs. pressure we see that a nozzle with an orifice of 1.375 in. will have a pressure loss of 4 ft. H2O. Since the pattern is 2' x 2', the distance from the center of nozzle to the edge of pattern is 12". Using the spread chart for the 1.375" orifice we see that the bottom of the nozzle must be about 9 from the media to get the 12" horizontal spread.
Design Example 2
For this example let us design a pan distribution system. The tower is 4 ft. x 6 ft. plan area. The water flow rate is 200 gpm. If we space the nozzles 8" on center and 8" from the walls there will be 5 rows of 8 nozzles for a total of 40 nozzles. The flow per nozzle will be 5 gpm. Using the chart below there is a choice between two nozzles. The.75 in orifice will require a head of 6 in. of water in the pan. The.875 in orifice will require 3.5 in. of H2O in the pan. The usual vertical spacing for these types of target nozzles is 2- 4 inches from the bottom of the nozzle to the media surface.
Good water distribution is a critical component of packed towers design. Fortunately, it is relatively easy and inexpensive to do it right. In most cases, it is also possible to retrofit a good system into an existing tower. Consult with your tower or media supplier to improve the performance of your trickling filters and CO2 strippers.
©2006 by L. S. Enterprises. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher.
Published by L. S. Enterprises
Author: Matt Smith


text:
Distribution of anisoplia beetles on grain crops in the Russian Federation in 2013–2017
Keywords:Anisoplia, coefficient of settling, treatment, focal harmfulnes
Anisoplia species pose a serious danger to wheat, rye and barley in the Central, Southern, North-Caucasian, Volga, and Ural federal districts. This article analyses the results of monitoring of pests in 2013–2017. It can be concluded that the number is decreasing and, as a consequence, the coefficients of Anisoplia settling in the districts of the Russian Federation are reduced. This situation in the federal districts is caused by a complex of unfavorable weather conditions of the past seasons, as well as by the use of pesticides.


during long trips or in remote locations.
 In addition, diesel heaters excel in distributing heat evenly throughout the space, ensuring that every corner of the caravan receives warmth. This even heat distribution is essential for creating a comfortable and cozy living environment, especially during cold weather.
 Compared to alternatives such as propane or electric heaters, diesel heaters offer a balance of performance, fuel efficiency, and heat distribution that make them a popular choice for caravan owners seeking reliable and effective heating solutions.
 Cost-effective
 A diesel heater is a cost-effective heating solution for caravans, offering fuel efficiency and potential savings on heating expenses.
 Being powered by diesel fuel, these heaters are known for their remarkable fuel efficiency, translating into lower fuel consumption and reduced operational costs over time. In the long run, investing in a diesel heater can lead to substantial savings on heating expenses, making it a wise financial decision for caravan owners.
 Optimizing fuel usage is key to maximizing the cost-effectiveness of a diesel heater. Simple practices like maintaining proper insulation in the caravan, regular maintenance of the heater, and programming the thermostat efficiently can help in achieving optimal fuel efficiency.
 Easy to Install
 Installing a diesel heater in a caravan is a straightforward process that requires minimal setup and installation time for immediate heating benefits.
 One of the key factors to consider when setting up a diesel heater in a caravan is the placement. The heater should be installed in a well-ventilated area, away from any flammable materials and preferably close to where you spend most of your time inside the caravan. It's essential to ensure that the heater is compatible with your specific caravan model to guarantee optimal performance.
 Safe to Use
 Diesel heaters are designed with safety features to ensure secure operation, with proper installation and precautions recommended for user protection.
 In terms of installing a diesel heater, it is crucial to follow the manufacturer's guidelines meticulously. This ensures that the heater functions efficiently and safely. Proper ventilation is key to allowing the heater to operate correctly and prevents the buildup of harmful gases like carbon monoxide. It's advised to install carbon monoxide detectors in the vicinity of the heater as an additional safety measure.
 Regular maintenance checks are necessary to keep your diesel heater in optimal condition. Inspecting the system for any signs of wear and tear, leaks, or malfunctions is essential to avoid any potential hazards. Keeping the heater clean and well-maintained not only prolongs its lifespan but also reduces the risk of accidents.
 During operation, it's important to be cautious and aware of safety practices. Avoid placing flammable materials near the heater and ensure it is placed on a stable, level surface. Never leave the heater unattended while in use, and always turn it off when not needed. By following these safety precautions and conducting regular system inspections, users can enjoy the benefits of a diesel heater without compromising on safety.
 What Are the Different Types of Diesel Heaters?
 There are different types of diesel heaters available, including air heaters, water heaters, and combination heaters, each offering unique heating options for caravans.
 Air heaters function by drawing in cold air from the surrounding environment, passing it over a heat exchanger that is heated by burning diesel fuel, and then circulating the warm air back into the caravan interior.
 Water heaters, on the other hand, utilize a heat exchanger that warms up a water-based antifreeze solution, which is then pumped through a network of pipes to radiators or convectors placed throughout the caravan.
 Combination heaters provide the benefits of both air and water systems, offering a versatile solution that can effectively heat the caravan interior and provide hot water for showers and washing.
 Air Heaters
 Air heaters are a type of diesel heater that focuses on circulating warm air within the caravan, providing efficient heating and comfort for travelers.
 This type of heating system plays a crucial role in creating a cozy environment inside the caravan by continuously circulating warm air. By regulating the temperature effectively, air heaters ensure that travelers can enjoy a comfortable stay regardless of the weather conditions outside. One of the key advantages of air heaters is their ability to rapidly warm up the interior space, allowing for quick and convenient heating. Their efficient operation not only keeps the caravan warm but also helps maintain a consistent temperature, enhancing overall comfort during travel.
 Water Heaters
 Water heaters are designed to circulate heated water through the caravan's heating system, offering consistent warmth and hot water supply for various applications.
 Within a diesel heating system, water heaters play a vital role in maintaining the desired temperature levels through a process of heating water and circulating it efficiently. These heaters are equipped with mechanisms that enable them to transfer heat effectively to the water, ensuring a continuous supply of hot water for showers, washing, and other domestic purposes in caravans.
 Combination Heaters
 Combination heaters combine air and water heating functions in a single unit, providing versatile heating options for caravans that require both air circulation and water heating capabilities.
 These innovative heaters offer the convenience of a dual heating system, ensuring that caravan occupants can enjoy a comfortable environment regardless of the climate conditions outside. By efficiently combining air and water heating, combination heaters optimize energy usage, resulting in cost savings for caravan owners in the long run.
 The space-saving design of these heaters makes them ideal for compact living spaces such as caravans, where every inch counts. They are designed to provide comprehensive heating solutions without taking up excessive space, allowing for a more functional and comfortable interior. With combination heaters, caravan owners can enjoy the benefits of a well-rounded heating system that caters to all their heating needs efficiently.
 How to Choose the Right Size Diesel Heater for Your Caravan?
 Selecting the right size diesel heater for your caravan involves considering the heating capacity, interior space, insulation levels, and climate conditions to ensure optimal comfort and efficiency.
 When determining the heating capacity required, calculate the total volume of the caravan interior in cubic meters. A rule of thumb is to provide around 0.1 kW of heat per cubic meter for average insulation levels, adjusting for colder climates or poorer insulation. Consider the layout of the caravan, as heater placement can affect heat distribution.
 Additionally, insulation quality plays a crucial role in heat retention. Well-insulated caravans will require less heating capacity compared to poorly insulated ones. Factors such as double-glazed windows, foam insulation, and draft-proofing can significantly impact heat loss.
 How to Properly Maintain Your Diesel Heater in a Caravan?
 Proper maintenance of a diesel heater in a caravan is essential for ensuring safety, optimal performance, and longevity of the heating system.
 To keep your diesel heater running smoothly, it is recommended to conduct regular inspections on critical components such as the fuel filter, combustion chamber, and exhaust system. Inspect for any signs of wear, corrosion, or blockages that could hinder the system's efficiency. A thorough cleaning routine is crucial to prevent carbon buildup and ensure proper airflow.
 Adhering to a scheduled maintenance plan will not only extend the lifespan of your diesel heater but also minimize the risk of malfunctions during your travels. It's also important to perform safety checks regularly, including examining the connections, vents, and carbon monoxide detectors to ensure they are functioning correctly.
 Frequently Asked Questions
 What is a diesel heater and how does it work in caravans?
 A diesel heater is a heating system that uses diesel fuel to generate heat and warm up the interior of a caravan. It works by burning the diesel fuel in a combustion chamber and then circulating the heated air through a series of ducts and vents to distribute the warmth throughout the caravan.
 What are the benefits of using a diesel heater in a caravan?
 One of the main benefits of using a diesel heater in a caravan is that it is more efficient and cost-effective compared to other types of heating systems. It also doesn't require electricity, making it a great option for off-grid camping. Additionally, diesel heaters provide consistent and powerful heating, making them ideal for colder climates.
 How do I maintain and troubleshoot my diesel heater in a caravan?
 To maintain your diesel heater, it is important to regularly check and clean the air intake and exhaust vents, as well as regularly changing the fuel filter. If your heater is not working properly, it could be due to a clogged fuel filter, low fuel level, or faulty ignition. Refer to your owner's manual for specific troubleshooting steps.
 Can I install a diesel heater in a caravan myself?
 Although it is possible to install a diesel heater yourself, it is recommended to have a professional do it for safety reasons. Diesel heaters involve working with combustible fuels and proper installation is crucial to ensure safe and efficient operation. It is always best to consult a qualified technician for installation.
 What are the different types of diesel heaters available for caravans?
 There are two main types of diesel heaters for caravans – forced air and radiant. Forced air heaters use a fan to blow heated air into the caravan, while radiant heaters use a heating element to radiate heat. Forced air heaters are more common and provide faster and more even heating, while radiant heaters are quieter and more energy efficient.
 Are there any safety precautions I should take when using a diesel heater in a caravan?
 Yes, it is important to follow safety precautions when using a diesel heater in a caravan. This includes ensuring proper ventilation to prevent carbon monoxide buildup, keeping flammable materials away from the heater, and turning off the heater when refueling. It is also recommended to have a carbon monoxide detector installed in the caravan for added safety.
 Similar Posts
 Leave a Reply
 Your


text:
Circular Economy Strategy Launched
Beyond Recycling – Making the circular economy a reality in Wales
The Deputy Minister for Housing and Local Government Hannah Blythyn has annouced the publication of a new consulation document "Beyond Recycling – Making the circular economy a reality in Wales"
Statement from Hannah Blythyn
"Our aim is to build on the globally recognised achievements we have made in terms of recycling. This success has involved the participation of the whole of Wales. In undertaking the consultation, we want to build on and harness the interest and momentum in communities across Wales and work with citizens and stakeholders to shape how we make the step change to a circular economy. Delivering on our journey towards zero waste by 2050, reducing emissions and taking new economic opportunities to create a Wales where we keep resources in use for as long as possible".
"The consultation has been designed to be accessible and we are working to engage as many people as possible across Wales in this exciting discussion. We are openly inviting respondents to not only comment but also suggest, challenge and put forward alternative proposals for action. There will be a range of events, with communities, stakeholders and online and I would encourage you to raise awareness of the consultation".
Deputy Minister for Housing & Local Government,
Hannah Blythyn, pictured at Recyle Link Wales'
Network Event July 19
We are consulting on proposals that we:
- move towards zero waste by 2050
- scrutinise how we use resources
- encourage the reuse, repair and remanufacture products and materials
- maximise the economic and social opportunities of a more circular economy.
All can get involved with the consulations using the following link:
Consultations end on 3rd April 2020


text:
Sesame Workshop Shares Tips For Creating Touch Screen Content for Preschoolers
Producer of Sesame Street Releases Best Practices for Apps and eBooks Based on Proprietary Research
New York, NY, December 17, 2012 –With ownership of tablets more than doubled over the last year1, more children than ever are engaging with touch screen devices. Sesame Workshop, the nonprofit educational organization behind Sesame Street, today released a paper that offers key findings from touch screen studies and tips for designing and developing apps and ebooks for preschoolers. Best Practices: Designing Touch Tablet Experiences for Preschoolers is based on more than 50 studies and shares Sesame Workshop's approach and discoveries in creating effective educational content for these mobile platforms.
Best Practices outlines interactive design points that research has shown to best support child engagement and learning on digital touch platforms. It also categorizes the most and least intuitive gestures for touch screens, tips for visual design and layout. Findings and tips include:
- Provide dialogue and visual reinforcements to help preschoolers who usually cannot read.
- Tapping is one of the most intuitive interactions for preschoolers while pinching and flicking are often difficult for children with developing motor skills.
- Preschoolers are inclined to hold tablets in landscape view.
- Preschoolers tend to rest their wrists along the bottom edge of tablets, making hotspots and icons placed along the edge potential triggers for unintentional actions that disrupt the activity.
"These best practices are a result of our research with preschoolers and their parents. We've developed highly effective methods and ways we can make apps and ebooks more engaging to help children learn," said Rosemarie Truglio, Ph.D., Senior Vice President, Education and Research. "We design with parents and caregivers in mind and know that through joint media engagement children learn more and our content has a greater educational impact. In addition, we develop parent tips and have begun to integrate progress trackers as a helpful resource for parents."
The paper also outlines key features for book apps and ebooks such as including reading options with and without narration in ebooks and the ability for parents to turn off potentially distracting hotspots.
Best Practices: Designing Touch Tablet Experiences for Preschoolers is available for download on Sesame Workshop's website at _URL_ The tips on interaction and design outlined in the paper were culled from studies done on Sesame Street and The Electric Company apps designed for tablets and smartphones.
Sesame Workshop is the nonprofit educational organization that revolutionized children's television programming with the landmark Sesame Street. The Workshop produces local Sesame Street programs, seen in over 150 countries, and other acclaimed shows including The Electric Company, to help bridge the literacy gap. Beyond television, the Workshop produces content for multiple media platforms on a wide range of issues including literacy, health and military deployment. Initiatives meet specific needs to help young children and families develop critical skills, acquire healthy habits and build emotional strength to prepare them for lifelong learning. Learn more at _URL_.


Installation Overview
Corzan pipes and fittings are joined using a fast and easy two-step solvent-welding process. Local codes determine which method is acceptable in your area, but the two-step method is more commonly used in the U.S. These directions are an overview of the instructions created by the Plastic Pipe and Fittings Association. Before any installation, please confirm the correct instructions from the manufacturer and any local codes.
Solvent Welding Demonstration
Pipe and fittings must be at the same temperature prior to start of installation. For proper solvent welding of Corzan pipe and fittings, the primer and cement dauber should be no less than half the size of the pipe for sizes 3" and below. Larger sizes require the use of a swab.
Step-by-Step Instructions
1. Cut the pipe
Corzan piping systems can be cut using ratchet cutters, wheel cutters or a fine-tooth saw. When cutting into previously installed Corzan pipes and fittings, avoid use of ratchet cutters as these may compromise the integrity of the repair. If any indication of damage to the pipe is visible at the piping end, cut back at least 2" beyond the visible damage.
2. Prepare the Pipe and Fittings
Remove any burrs or filings and bevel the end of the pipe using a chamfering tool. If a chamfering tool is not available, a sharp knife or file is suitable, but not preferred.
Using a clean, dry rag, wipe away any dirt and moisture from the joint surfaces.
Check the fit of the pipe and fitting; the pipe should make contact with the socket wall 1/3 to 2/3 of the way into the fitting socket. If the pipe goes all of the way into the fitting at this stage, discard the fitting.
3. Apply Corzan Solvent Primer
Apply a heavy, even coat inside the fitting socket, keeping the surface and applicator wet until the surface has been softened. Then, drain any puddles of primer from the fitting socket. Next, apply the primer onto the end of the pipe 1/2″ beyond the depth of the fitting socket. Then for a second time, work a second coat of primer into the fitting socket.
Ensure proper coverage of cement on the pipe and fitting. Too little solvent cement can result in gaps and leak paths, and too much solvent cement may puddle in the fittings and/or pipe, softening the material.
4. Apply Corzan Solvent Cement
Apply a heavy, even layer of solvent cement on the pipe end, then apply a medium layer of solvent cement into the fitting socket. Apply a second, heavy layer of solvent cement to the pipe end.
5. Assemble the joint
Immediately after applying solvent cement, insert the Corzan pipe into the fitting in one smooth action, until the pipe is completely to the fitting stop. On sizes 2″ and below, rotate the pipe ¼ to ½ turn while inserting to ensure even distribution of cement. Properly align the fitting and hold the assembly for approximately 30 seconds, allowing the joint to set.
6. Verify proper installation
An even bead of cement should be visible around the joint. If this bead is not visible it may indicate that solvent cement was not properly applied. In this case, disassemble and remake the joint to ensure system integrity.
Dry-fits are extremely rare and completely avoidable with proper installation practices. Verifying the presence of a continuous solvent cement bead at the fitting is a critical step to ensure system integrity.
A reminder that these directions are a generalization of the instructions created by the Plastic Pipe and Fittings Association. Before any installation, please confirm the correct instructions from the manufacturer and any local codes.
Corzan Manufacturer Approved Instructions
Always refer to local codes and the manufacturer's instructions for the specific Corzan piping systems manufacturer you are using:
Other Resources
For more information on installation, consult these resources:
Science of Solvent Weld
Solvent welding is a form of welding that uses chemistry and geometry rather than heat to produce a permanent molecular bond. When the right mixture of solvents and radial pressure are applied, the pipe and fitting become permanently bonded, functioning as a single component.
Solvent welding is not gluing. Glues work by providing a sticky layer between two components to create a bond; if the two parts were actually in direct contact they wouldn't stick because there would be no glue between them. Solvent welding requires the two components to come into contact as the solvent cements allow the parts to molecularly bond with each other.
Factors Affecting Weld Strength
 - Interference Fit: the inside of a Corzan piping system is specially tapered to create a "fusion area." In a properly assembled system, 80% of the joint strength comes from this fusion area. Because of this it is important to ensure that installers avoid angled pipe cuts, clear away burrs and filings, and check the fit of the pipe and fitting prior to solvent welding.
 - Corzan piping systems are supported by a team of consultants; to learn more about solvent welding and proper installation practices, contact us today.
Contact Corzan
Field sales reps are stationed regionally throughout the country and are available to help you find products and resources in your area. Questions? Connect with a sales rep by completing the form below.


text:
Last name: Atrill
This interesting name is of Anglo-Saxon origin, and has two possible sources; the first being that it is topographical for a "dweller by the hill", deriving from the Middle English (1200 - 1500) "att", at, with the Olde English pre 7th Century "hyll", a hill. However, the alternative source of this name may be the later West Country development, surviving in placenames as both Rill and Rull, and thus Atrill, and its variant forms Attril and Attrill, would be a locational name from either of these places, for example "atte Rill". Topographical surnames were among the earliest created, since both natural and man-made features in the landscape provided easily recognisable distinguishing names in the small communities of the Middle Ages; while locational surnames were developed when former inhabitants of a place moved to another area, usually to seek work, and were best identified by the name of their birthplace. Recordings from Devonshire Church Registers include the marriage of Edward Atrill and Emlin Crymes in St. Budeaux, on February 17th 1798. The first recorded spelling of the family name is shown to be that of Waller atter Hille, which was dated 1330, in "Placenames of Devon", during the reign of King Edward 111, known as "The Father of the Navy", 1327 - 1377. Surnames became necessary when governments introduced personal taxation. In England this was known as Poll Tax. Throughout the centuries, surnames in every country have continued to "develop" often leading to astonishing variants of the original spelling.
© Copyright: Name Origin Research _URL_ 1980 - 2013


text:
Variable Displacement Hydraulic Piston Pump/Motor: Pressure Drop Analysis
The CFD analysis determined the pressure drop for the piston pump in both pump and motor mode. The pressure drop across bends, expansions, constrictions and other discontinuities is dependent on the direction of flow.
Variable flow hydraulic motors have been around for years but are finding new applications in the development of infinitivally variable drive systems for super energy efficient vehicles.
The variable displacement piston pump (also known as an axial piston pump or a bent-axis piston pump) is used to convert hydraulic flow in to mechanical energy (torque) and vice versa. This technique is commonly used in hydrostatic transmissions. Since the device would be used in both pump mode (converting torque to flow) and motor mode (converting flow to torque) a CFD consulting analysis was required for two sets of boundary conditions.
Our work developed optimized geometries for minimize pressure drop through the yoke while also ensuring acceptable stress levels within the casting.
Keywords: CFD, Pressure Drop, Steady State, Incompressible Flow, CFD, CFdesign, AutoDesk Simulation CFD, Computational Fluid Dynamics, Fluid Mechanics, Energy Efficient Vehicles, Variable Displacement Piston Pump, Axial Piston Pump, Bent-Axis Piston Pump, Hydrostatic Transmissions.


Why Single Mothers Could Need An Emergency Loan
Some single mothers struggle financially more often than families who bring in two salaries. Single mothers have to provide for their children and pay bills with only one income, which is why they would need emergency loans from NZ lenders. An emergency loan could assist them with the following:
1) Groceries
Growing kids eat a lot. They always seem to be hungry and need a consistently balanced diet to keep them healthy and growing strong. However, healthy food isn't always what they get, because foods that are laden with sugars and preservatives are typically cheaper than fresh produce. If a single mother was struggling financially, she might save money by buying food of lower-quality, or that which is more affordable. And if the pantry ran out of food before her next pay came in, she could get an emergency loan to buy odds and ends, and staple foods, that have run out.
2) School Trips And Supplies
For a single mother, her children's school fees would be a part of her monthly budget. However, on a single salary, she could struggle to pay for extra expenses that haven't been accounted for. For example, if her child has a school trip, or needs additional stationary or supplies. These items don't always come with a warning, and sometimes there's no money left over to pay for them. But with an emergency loan from an NZ lender, she could pay for the school trip, or get what her children need.
3) Emergency Healthcare
Childhood injuries are common, and parents always need to be prepared for a scraped knee, or, heaven forbid, a trip to the emergency room. However, single parents might not always have enough money saved up for emergencies. But luckily, if a child fell ill and needed medication, a single mother could apply for an emergency loan online, and get approval on the same day.
Some Tips For Applying For Emergency Loans In NZ
If you're a single mother looking at emergency loans from NZ lenders, be clear-headed and focused. Find interest rates that you can afford, and check your lender's credibility before handing over your private information.
Having money troubles as a single mother is not uncommon, but it doesn't have to become a burden. If you need additional financing to get through to your next paycheck, try getting emergency loans from private lenders in NZ. They're manageable, easy to repay, and short-term.


Marvin Humphrey created CLOWNFISH-57: ---------------------------------------- Summary: Map clownfish.Obj to Go empty interface Key: CLOWNFISH-57 URL: Project: Apache Lucy-Clownfish Issue Type: Improvement Components: Go Reporter: Marvin Humphrey Assignee: Marvin Humphrey Fix For: 0.5.0 Autogenerated bindings for Clownfish subroutines which accept or return clownfish Obj should be mapped to Go's "empty interface" type, 'interface{}'. This sacrifices some type safety, but it is the only way to achieve certain desirable effects. For example, it should be possible for Vector's Push() method to take a Go string, instead of requiring the user to perform a manual conversion to a Clownfish object. Similarly, Vector's Pop() should be able to return a Go string. Functions which need to return an actual clownfish Obj wrapped in a Go struct will need to have hand-coded bindings, but there are fewer of those so converting Obj by default is the better choice. -- This message was sent by Atlassian JIRA (v6.3.4#6332)


text:
The Elms moorings are based adjacent to The Elms Retirement Village for the over 50's which is owned and managed by the Kinch family of The John Kinch Group. The family moved to Torksey in the late 1970's. Over a period of years the family have developed The Elms into an award winning retirement park homes park.
Along with this came a major overhaul of the adjacent moorings. This involved replacement of the old scaffold and wooden deck moorings with high quality floating pontoon moorings from Walcon Marine. Electric hook ups were installed along with access to water. In 2016 this facility was extended with a further stretch of moorings reaching right up to Torksey Lock basin and then additional improvements were made in 2019 with the provision of a private toilet, shower and waste disposal block within a stones throw of the moorings.
History of the Fossdyke
The Fossdyke canal is about 11 miles long and connects the River Witham to the River Trent. Originally believed to have been built by the Romans in around 120 AD, the Fossdyke has a history longer than most other canals which includes cargo transportation for almost 2000 years. The stone used to build Lincoln Cathedral in the 11th century was alleged to have travelled this very route. After the departure of the Roman army the maintenance on the Fossdyke decayed until the channel was refurbished in 1121, in the reign of Henry I.
Further improvements were made in 1671 including the installation of a lock at Torksey which is now a grade II listed structure. During the next few centuries it silted up several times, becoming almost unusable until it was dredged again but it was not until 1744 that a reliable channel was created and maintained. The canal was leased to the Great Northern Railway in 1846. Competition led to commercial decline, but agricultural produce was still being routinely carried down the Fossdyke from the River Trent right up to the 1970s with the last commercial operation being in 1972. In the present day the Fossdyke is still used greatly by pleasure craft creating excellent links between the waterways.


The links above are for a kick-off letter and getting started guide designed to be used to welcome your parents and students to PlanetHS and give them an overview for creating accounts. The letter is in Microsoft Word format and allows you to customize it with the school's name. You can also add the Quick Account information by logging into _URL_ and clicking the Quick Accounts button and copying your school's unique text code into the document as well.


text:
Водосберегающая технология и эффективные тарифы
Dynamic model of efficient allocation of water with three sources of water supply (groundwater, surface water and the recycling technology with limited capacity) is constructed and analyzed. It is shown that in case of binding capacity constraint we can abandon the use of groundwater at some moment and then revert to it some time in future. Efficient path could be decentralized under suitable water tariffs. Comparative analyses of water tariffs for the two users that differ only in terms of the availability of recycling technology are undertaken.


DIA100xH220mm, China
This cute little man is in fact a gourd! It doesnt have the normal "8" shape (see entry Small Gourd) as it was been formed with the string bounded technique. When the gourd is still green and tender, a string is fastened to it tightly, the string is use as a guide and restriction for its growth, by the time when it is ripe and fully grown a certain shape is formed. This reminded me some of Araki Nobuyoshi's work, perhaps both has a feeling of manipulation and distortion. The drawing on the gourd is done by a technique known as heat engraving; a metal needle is inserted into a large joss stick (finger thick), the joss stick is then lighted up, using the heat the score skin of on the air dried fruit, creating a mark. The heat can be lowered by clipping away portion of the burning joss stick. There are different needles for different lines and shade; mainly, the pointed set for lines, horse shoe shape set for shading and knife shape for smoother lines. Now the function of this little man, its a toy cricket cage for children to keep their pets. The man will be at a headstand position with the lid on top, the shape of the gourd will give a resonance for the song of the crickets.
For the bamboo cage, see entry cricket cage


text:
The high quality oats that Saskatchewan produces are in demand for the horse industry in the United States. Oats are primarily used for livestock feed or breakfast foods.
Common root rot, seedling blight and prematurity blight of cereals are caused by the same species of soil-inhibiting fungi (Cochliobolus sativus and Fusarium spp.).
What is Crown Rust of Oat?
Ergot is a plant disease caused by the fungus Claviceps purpurea, which infects the developing grains of cereals and grasses.
The importance of seed-borne diseases in cereals.
Sooty moulds often show up as grey patches in the field.
What variety of oats should I seed?
What kinds of field should I avoid?
Oat is an important crop world wide, with production at approximately 25 million tonnes.


Take the 2-minute tour ×
I know a Chinese proverbial phrase. Translated literally into English, it says something along the lines of "Sky falls big pancakes". When used negatively in the phrase, "The sky does not fall big pancakes," it is generally used to warn against idleness.
What is the origin of the proverb? Also, I am not really sure if the object is pancakes. It may be a cookie or a flat cake or a flat flour wrap.
share|improve this question
2 Answers 2
天上掉馅饼，means that free and delicious food like pies are falling from the sky. Or its negative form: 天上不会掉馅饼
Nowadays it usually means that people who are lazy are expecting something miracle but impossible will happen to them. For example:
This phrase came from a Chinese myth. After 嫦娥(the lady in the legend who swallowed the elixir stolen from her husband and flew to the moon) went to the moon, 后羿(the man in the legend who shot 9 suns out of 10 and saved the earth from the heat) was very sad and thought about her every day. When 嫦娥 found out his love, she wrote her love on a pie. Because she is on the moon, there came the phrase: 天上掉馅饼
share|improve this answer
Here is an explain by BaiDuPedia in Chinese:天上掉馅饼本指天空中降落类似馅饼那样的即免费又好吃的食物，泛指在自然生活中会无缘无故的发生一些可以满足人们欲望的物质或财富上面的事情；现在也贬指那些坐享其成，成天不务实际的人在假想一些不可能发生的事情，等待出现奇迹，天上怎么可能会掉馅饼。
馅饼 is a common food in China even today, it may be like a salty pie(I'm sorry, I have not met a pie). You get a 馅饼 from sky rather than you cook it, how lucky! You pay no effort. Thus, 天上掉馅饼 means getting something without effort; 天上不会掉馅饼 warns you that this thing will not happen, that is, you'd better do your best to get something. There is a fable story known by everybody in China <守株待兔>, it gives the same warning.
share|improve this answer
Your Answer


text:
How good is a Power Ring capacitor?
The Power Ring design results in lower losses, lower inductance and a higher ripple current rating than traditional film capacitor technology. The ring shape provides extremely low internal losses (ESR) and dramatically lowers the inductive properties (ESL). SBE's Power Ring capacitors show ESR values as low as 0.15 mOhm for a 1000µF – 600V DC Link.
The graph of temperature versus ripple current (above) illustrates the huge improvement in thermal performance delivered by the Power Ring design versus a conventional array of film capacitors. This performance improvement translates to a more efficient use of microfarads where high ripple current is an issue. Design can be optimised for current-handling rather than having to "bulk up" on capacitance only for current handling survival and lifetime requirements – a strategy which has the side-effects of increased cost and size.
How do they do it?
The ultra-low ESR is achieved by shortening the current path between the electrodes. SBE's patent-pending segmented end spray approach divides the metal end spray into "floating" segments (see diagram). Unlike conventional capacitors, the loss between film and end spray metalisation is so low that current in the end spray can be the dominant loss contributor. The capacitor element ESR can be as low as 50μΩ and the ESR of the end spray/braid can be less than 10μΩ.
Power ring v snubber capacitor
A Power Ring DC link capacitor with integrated bus bar offers a loop inductance that can eliminate the need for a snubber circuit. Snubber capacitors get very hot since they are connected to the IGBT pins (often the hottest point other than under the die itself) and are almost never directly cooled due to the difficulty of connecting cooling plates. Their small size and poor cooling mean snubber capacitors are usually the weak link in the reliability chain for an inverter.
As usable operating voltage increases there can be a tendency to add a snubber to get every bit of safe operating voltage out of a system. The integrated Power Ring capacitor is a more effective method of reducing overshoot, and therefore increasing safe operating voltage, without compromising reliability or system lifetime.
A cooler DC link capacitor means a longer lifetime. A lower ESL means reduced overshoot and undershoot which reduces stress. Removing the requirement for a snubber capacitor means lower costs, a smaller design and a longer lifetime.
Power Ring capacitors
GT series – snubber capacitors
KPST series snubber capacitors
Capacitors from PPM Power
Compact solution for high power pulsed applications
ESP resistors from EBG provide a highly compact solution for high power, pulsed, low frequency applications such as:
- Inrush current limiting
- Capacitor pre-charge and discharge
- Motor control units
- Power supplies,
- Battery charging systems
- Inverter drives.
Right now, these resistors are popular in electric vehicle subsystems as pre-charge resistors and in-rush current limiting devices for industrial power control systems.
Large energy pulses
The special resistive element provides a highly reliable, non-inductive current path capable of handling large energy pulses up to 3300 joules over one second.
The EBG ESP resistor has a very small footprint when compared with thick film, ceramic and wire wound resistors with equivalent peak power ratings, an essential feature for applications where where space is very limited such as electric vehicles or military systems.
Resistor technology comparison table
||Peak Power Rating
Superb build quality
The resistor has superb build quality with large end caps and M4 threads for multiple mounting options. Two diameter sizes are available: 14mm and 20mm. Both sizes are 62mm in length with resistance values between 10 ohms and 1K ohms. Tolerances are +/-5% or +/-10%. If you require tighter specifications please contact a member of the PPM Power technical sales team on 01793 784389.
The PH-A280 series of high voltage input DC-DC converters from TDK-Lambda are now available with 300W output. The DC-DC power modules have a range of 200 to 425Vdc, and are suitable for use in applications using a 380V DC bus such as data centres, telecommunications and renewable energy. The four new models are rated at 12V / 25A, 24V / 12.5A, 28V / 10.8A and 48V / 6.3A. These extend the 50 to 150W PH-A280 product range which already includes outputs of 3.3V, 5V, 12V, 24V, 28V and 48V.
Greater Adjustment Range
The 300W models have a greater adjustment range of -60% to +20% to accommodate non-standard voltages and can provide full load with -40°C to +100°C baseplate temperatures. The range offers efficiencies of up to 92%,
The units follow the industry-standard half-brick package (61.0 x 12.7 x 57.9mm).
The converters can also be conduction cooled making them suitable for use in sealed outdoor enclosures or liquid cooled applications.
Five year warranty
All PH-A280 modules include:
- Five-year warranty,
- Remote on-off
- Over-current and over-voltage protection.
The series is fully isolated with an input to output isolation of 3,000Vac.
Certified to IEC/EN 60950-1, UL/CSA 60950-1 with CE marking for the Low Voltage and RoHS2 Directives.
High Voltage DC-DC power supplies
Overview of power supplies available from PPM
Nanocrystalline is a soft magnetic material composed of 82% iron which has been dubbed the future of magnetic materials in power electronics. Higher permeability means lower loss transformers, which can translate to large reductions in size and weight.
Lower losses, smaller size and reduced weight
The losses of a Nanocrystalline core can be up to two-thirds less than an equivalent Nickel Supermalloy core and up to 80% less than for toroid geometries. Less power is dissipated by the transformer (or inductor) and means the size of cooling components can be reduced.
Ease of switch over from other materials
Nanocrystalline can be formed into any shape and therefore offers a drop-in replacement for existing cores manufactured from other materials, such as Supermalloy or ferrite.
Nanocrystalline v Supermalloy
Nanocrystalline material is more suitable than Supermalloy in applications such as high frequency/broadband transformers, broadband current sensors, high frequency filter chokes and pulse transformers because nanocrystalline offers:
- High permeability over a broad frequency range
- High saturation flux density
- Low losses
Soft magnetic cores from PPM Power
PPM Power can supply tape-wound soft magnetic cores manufactured by MK Magnetics from a range of materials, including grain-oriented silicon steels, 50% and 80% nickel alloys, amorphous material, cobalt alloys and nanocrystalline. Cores up to 1.8m x 1.8m / 1800Kg and strip widths up to 0.6m are possible.
Potential magnetic core weight reduction (2000 Gauss, 20kHz)
Comparison of magnetic materials
|Grain Oriented Silicon Steel
|Standard Crystalline Permalloy
|Advanced Silicon Steel
|High Performance Ferrite
|Advanced Crystalline Permalloy
Feature image in homepage newsreel is by Kapsid_Schema-01.jpg: Gleiberg derivative work: Hic et nunc – derived from Kapsid Schema-01.jpg: , CC BY-SA 2.0 de, Link
EBG have expanded the UXP series of ultra-high power resistors to include the UXP350. Using thick-film technology, the UXP series has an operating temperature range of -55°C to +150°C and a maximum working voltage of 5kV DC. Higher voltages and other temperature coefficients are available on request. Resistance tolerance is+/- 5% to +/-10%.
Often used as a snubber resistor to compensate for C-R peaks in traction power supplies, the UXP series is also intended for use in speed drives, power supplies, control devices and robotics. The UXP portfolio covers power ratings from 300W to 2000W.
About EBG resistors
EBG has been a leading manufacturer of non-inductive thick film resistors since 1977. The manufacturing process is state-of-the-art, producing precision resistors for high voltage, high power, and pulse loading applications.
The EBG product range consists of over 350 standard and custom models of high voltage resistors, power resistors, pulse resistors, current sense resistors, load resistors, high power resistors, and matched divider resistor sets. Form factors available include cylindrical, flat, TO220, TO247, SOT227 and many custom power footprints. Normal lead time for standard or custom products is 8 weeks or less.
PPM Power can now supply a series of 3-phase AC-DC power supplies delivering up to 3200W in a 2U package. The TPS3000 series from TDK Lambda operates from a wide range Delta or Wye 350 – 528Vac 3-phase input, avoiding the requirement for step-down transformers and assisting phase


text:
The use of matched filters in digital communication and in RADAR systems. We will be using matched filters to detect binary symbols in the presence of noise and then identifying the 7bit ASCII character that was transmitted over a noisy channel.
Based on below Fig, we will determine the energy E of a symbol waveform representing a binary '1'. What is the energy of symbol waveform representing binary '0'?
Derive a general expression for the frequency response Hopt(f) of the matched filter receiver, matched to a signal s1(t), in terms of the frequency response of the input S1(f). Hence, determine the frequency response of the matched filter Hopt(f) for the matched filter designed in part (b) for Fig. Compare this with the frequency spectrum S1(f) of waveform s1(t) representing the binary symbol '1".
Assuming that the waveform s1(t) for symbol '1' appears at the input of the matched filter you have designed above, without any noise or distortion (ie: the channel is ideal). Sketch the output y1(t) of the matched filter
Express y1(t) in terms of s1(t) and hopt(t). Express the spectrum Y1(f) of the output y1(t) of the matched filter in terms of the input spectrum S1(f). What has the matched filter done to the magnitude spectrum of the input signal s1(t) in producing the output y1(t)?
Assignment Writing Help
Engineering Assignment Services
Do My Assignment Help
Write My Essay Services