text:
Date of this Version
Paper Session: Student Experiences SIGCSE '20, March 11–14, 2020, Portland, OR, USA
Increasing retention in computer science (CS) courses is a goal of many CS departments. A key step to increasing retention is to understand the factors that impact the likelihood students will continue to enroll in CS courses. Prior research on retention in CS has mostly examined factors such as prior exposure to programming and students' personality characteristics, which are outside the control of undergraduate instructors. This study focuses on factors within the control of instructors, namely, instructional practices that directly impact students' classroom experiences. Participants were recruited from 25 sections of 14 different courses over 4 semesters. A multi-level model tested the effects of individual and class-average perceptions of cooperative learning and teacher directedness on the probability of subsequent enrollment in a CS course, while controlling for students' mastery of CS concepts and status as a CS major. Results indicated that students' individual perceptions of instructional practices were not associated with retention, but the average rating of cooperative learning within a course section was negatively associated with retention. Conconsistent with prior research, greater mastery of CS concepts and considering or having declared a CS major were associated with a higher probability of taking a future CS courses. Implications for findings are discussed.


Delta Migrations
A Delta Migration occurs when you have records that already exist in the Akamai Identity Cloud but might require an update from a legacy system. (For example, the Identity Cloud might include records for beta testers who also have user accounts in your legacy system.) A delta migration functions the same as a regular migration, but with the following additional logic:
 - IF a record does NOT exist THEN it will be created using the normal data migration process.
 - IF a record DOES exist (as detected by unique key violation response from entity.bulkCreate) THEN an attempt will be made to update the existing record using /entity.update with a defined primary key (such as email).
In other words, suppose you are using email as your primary key and your datafile consists of a single record, a record that has as the email address. When you run the delta migration, checks to see if your user profile store already contains a record that has the email address If it does not, then a new record is written. However, if the user profile store already contains a record that has the email address then the existing record is replaced by the record found in the datafile. This behavior occurs only during a Delta Migration. If you do not do a Delta Migration then the existing record is left alone and the new record is not written to the user profile store.
It is important to note that duplicity will not be ignored. Because of that, duplicate records in the CSV import file could trigger an update case that might not be desirable (i.e., replacing an existing record that you really didn't want replaced). Make sure your import CSV file is free from duplicate records (records containing the same primary key, usually email). Keep in mind as well that plural structures addressed in an update will be replaced with new information contained in the import CSV. That means that existing InternalIds associated with plural entries (used for indexing and iteration) will be re-assigned. It is possible, albeit very unlikely, that you could have downstream third-party systems that depend on existing plural IDs. You should verify this is not the case before initiating a Delta Migration.
Delta Migrations produce two additional artifacts (update_success.csv and update_fail.csv) that indicate that status of records that were updated during the execution of the script. As with other log files, these files are appended with a timestamp:
update_fail_ May_22_2019_10_55.csv
To run a Delta Migration simply add the arguments -dm and -pk when executing For example:
python3 -u -i 382bgrkj4w28984myp7298pzh35sj2q -s b2gfp7mgk9332annghwcf0po57xzqht5 -dm -pk email test_users.csv
Remember that the -pk (primary key) must be an attribute that is designated unique in the schema and must be present in the import CSV file. This attribute will be used to find and perform entity.update API calls on the existing record, overwriting the old record with data supplied from the corresponding record in the import CSV file. In the example above, the email attribute has been designated as the primary key. Other primary keys can be used, such as customer loyalty number, but that data:
 - Must also be present in the import CSV and present in the schema.
 - Must be unique, in that no two records will contain the same value for the attribute. The customer loyalty number can't be used as a primary key if multiple customers (e.g., all the members of a family) share the same loyalty number.


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Introduction
Because of its unique convenience and security, Hey Siri has been a frequently used function for iPhone users. Without touching the screen, users can free their hands by manipulating Siri to text someone, make phone calls, check routes, etc.. Today, we are sharing with you one Hey Siri unresponsive repair case.
Vidéo d'introduction
 1. Go to the home screen and invoke Siri by muttering the words 'Hey Siri'. Siri isn't opening on the phone.
 - Go to the home screen and invoke Siri by muttering the words 'Hey Siri'. Siri isn't opening on the phone.
 - Go to Settings > Siri & Search. We can see that 'Listen for Hey Siri' has not been enabled.
 - Enable 'Listen for Hey Siri'. Set up 'Hey Siri' on the phone. 'Hey Siri' set-up failed.
 - Long press the home button for Siri. Siri works normally.
 - As the front facing microphone is usually used for Siri. The fault is probably related to relevant circuits of the front facing microphone.
 2. Take apart the phone. Then take out the logic board.
 - Take apart the phone. Then take out the logic board.
 - Since the front facing microphone is integrated with the front facing camera, we need to run diode mode measurement of the front facing camera connector.
 - The measured value of Pin 29 is OL. Which means Pin 29 relevant circuit has open-circuited.
 3. The circuit is formed by an inductor, audio IC and two capacitors.
 - The circuit is formed by an inductor, audio IC and two capacitors.
 - Since the two capacitors have nothing to do with the open-circuit problem, we can check the inductor first.
 - Run diode mode measurement of the inductor. The measured value is normal.
 4. Judging by this, the fault is probably related to audio IC.
 - Judging by this, the fault is probably related to audio IC.
 - Let's try to replace with a new audio IC and see how it works.
 - Remove the audio IC with Hot Air Gun. Then clean the bonding pad. Solder a new IC onto the board.
 5. Now we need to test the logic board. Measure the boot current. The current reading is normal.
 - Now we need to test the logic board. Measure the boot current. The current reading is normal.
 - Continue to assemble the phone and test. The phone turns on normally. Go to Settings > Siri & Search. We can see that 'Listen for Hey Siri' has not been enabled.
 - Enable 'Listen for Hey Siri' and set up 'Hey Siri' on the phone. 'Hey Siri' set-up has been completed.
 - Go back to the home screen and invoke Siri by muttering the words 'Hey Siri'. Siri is opening on the phone this time.
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text:
Determination of the length of deformation waves in the high-rate deformation of metals
- 14 Downloads
A simple method has been devised for determining the length of a deformation wave in a solid. The method is based on the phenomenon of metalcutting and makes use of the interference of coherent waves. A hypothesis regarding the wave propagation of mechanical and thermal energy is proven experimentally, and it is established that the frequency of these oscillations increases with an increase in deformation rate.
KeywordsWave Propagation Thermal Energy Deformation Rate Deformation Wave Coherent Wave
Unable to display preview. Download preview PDF.

source: m-a-p/FineFineWeb


text: Branched chain amino-acid aminotransferase (BCAT) activity is present in fetal liver but the developmental pattern of mitochondrial BCAT (BCATm) expression in rat liver has not been studied. The aim of this study was to determine the activity, protein and mRNA concentration of BCATm in fetal and postnatal rat liver, and to localize this enzyme at the cellular and subcellular levels at both developmental stages. Maximal BCAT activity and BCATm mRNA expression occurred at 17 days' gestation in fetal rat liver and then declined significantly immediately after birth. This pattern was observed only in liver; rat heart showed a different developmental pattern. Fetal liver showed intense immunostaining to BCATm in the nuclei and mitochondria of hepatic cells and blood cell precursors; in contrast, adult liver showed mild immunoreactivity located only in the mitochondria of hepatocytes. BCAT activity in isolated fetal liver nuclei was 0.64 mU x mg(-1) protein whereas it was undetectable in adult liver nuclei. By Western blot analysis the BCATm antibody recognized a 41-kDa protein in fetal liver nuclei, and proteins of 41 and 43 kDa in fetal liver supernatant. In adult rat liver supernatant, the BCATm antibody recognized only a 43-kDa protein; however, neither protein was detected in adult rat liver nuclei. The appearance of the 41-kDa protein was associated with the presence of the highly active form of BCATm. These results suggest the existence of active and inactive forms of BCAT in rat liver.


Engineering
How to Calculate and Solve for Glide Shear | Fracture Mechanics
Last Updated on March 8, 2021
The image above represents glide shear.
To compute for glide shear, two essential parameters are needed and these parameters are Stacking Fault Energy (γ) and Varying Grain Constant (M').
The formula for calculating glide shear:
E = γ / M'
Where:
E = Glide Shear
γ = Stacking Fault Energy
M' = Varying Grain Constant
Let's solve an example;
Find the glide shear when the stacking fault energy is 18 and the varying grain constant is 2.
This implies that;
γ = Stacking Fault Energy = 18
M' = Varying Grain Constant = 2
E = γ / M'
E = 18 / 2
E = 9
Therefore, the glide shear is 9 Pa.
Calculating the Stacking Fault Energy when the Glide Shear and the Varying Grain Constant is Given.
γ = E x M'
Where;
γ = Stacking Fault Energy
E = Glide Shear
M' = Varying Grain Constant
Let's solve an example;
Find the stacking fault energy when the glide shear is 14 and the varying grain constant is 8.
This implies that;
E = Glide Shear = 14
M' = Varying Grain Constant = 8
γ = E x M'
γ = 14 x 8
γ = 112
Therefore, the stacking fault energy is 112.
Calculating the Varying Grain Constant when the Glide Shear and the Stacking Fault Energy is Given.
M' = γ / E
Where;
M' = Varying Grain Constant
E = Glide Shear
γ = Stacking Fault Energy
Let's solve an example;
Find the varying grain constant when the glide shear is 10 and the stacking fault energy is 40.
This implies that;
E = Glide Shear = 10
γ = Stacking Fault Energy = 40
M' = γ / E
M' = 40 / 10
M' = 4
Therefore, the varying grain constant is 4.
Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the glide shear.
To get the answer and workings of the glide shear using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.
You can get this app via any of these means:
Web – _URL_
To get access to the professional version via web, you need to register and subscribe for NGN 2,000 per annum to have utter access to all functionalities.
You can also try the demo version via _URL_
Android (Paid) – _URL_
Android (Free) – _URL_
Apple (Paid) – _URL_
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Materials and Metallurgical under Engineering.
Now, Click on Fracture Mechanics under Materials and Metallurgical
Now, Click on Glide Shear under Fracture Mechanics
The screenshot below displays the page or activity to enter your values, to get the answer for the glide shear according to the respective parameters which is the Stacking Fault Energy (γ) and Varying Grain Constant (M').
Now, enter the value appropriately and accordingly for the parameter as required by the Stacking Fault Energy (γ) is 18 and Varying Grain Constant (M') is 2.
Finally, Click on Calculate
As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the glide shear and presents the formula, workings and steps too.
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text:
Blue Hills Nuclear Power Plant
The Blue Hills Nuclear Power Plant was a proposed commercial nuclear power plant 20 miles northeast of Jasper, Texas.Coordinates: 31°9′N 93°42′W / 31.150°N 93.700°W It was proposed in the 1970s by the Gulf States Utilities Company. One 918 MWe pressurized water reactor was ordered in 1973, and an additional 918 MWe reactor was ordered in 1974 from Combustion Engineering. The two unit power plant proposal was canceled in 1978.
- List of books about nuclear issues
- Nuclear power debate
- Nuclear power in the United States
- List of canceled nuclear plants in the United States
- D. F. Cope; H. F. Bauman (November 1977). Expansion Potential for Existing Nuclear Power Station Sites (PDF) (Report). National Technical Information Service. pp. 16–21. ORNL/TM-5927. Retrieved December 2014 – via Oak Ridge National Laboratory. Check date values in:
- Fred A Heddleson (June 1976). Design Data and Safety Features of Commercial Nuclear Power Plants (PDF) (Report). National Safety Information Center. p. 67. ORNL/NSIC-96. Retrieved December 2014 – via Oak Ridge National Laboratory. Check date values in:
- Nuclear Power Generation and Fuel Cycle Report 1997 Archived October 9, 2009, at the Wayback Machine. pp. 61-62.

source: openbmb/Ultra-FineWeb


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Special Menu Options; Child Lock; Ism (Image Sticking Minimization) Method; Low Power - LG 42PC1M Series Owner's Manual
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Operation
Special Menu Options
Special Menu Options
Child Lock
- The set can be set up so that it can't be used with the button on the set.
1. Press the MENU button and then use
2. Press the
button and then use
G G
3. Press the
G G
button and then use
4. Repeatedly
press the
- This set is programmed to remember which option it was last set to even if you turn the set off.
- In
'
', if the set is turned off, press the INPUT button on the set.
Child lock
O O n n
- With the
Child lock On
pressed while viewing the set.
ISM (Image Sticking Minimization) Method
- Frozen of still picture from a PC/video game displayed on the screen for prolonged periods will result in a ghost
image remaining even when you change the image. Avoid allowing a fixed image to remain on the set's screen for
a long period of time.
1. Press the MENU button and then use
2. Press the
G G
button and then use
3. Press the
button and then use
G G
or
Orbiter
Inversion
White Wash
:
White Wash removes permanent images from the screen.
Note: An excessive permanent image may be impossible to clear entirely with White
Wash.
Orbiter
:
Orbiter may help prevent ghost images. However, it is not best to allow any fixed
image to remain on the screen. To avoid a permanent image on the screen, the
screen will move every 2 minutes.
Inversion
:
This is the function to invert the panel colour of the screen. The panel colour is auto-
matically inverted every 30 minutes.
4. Repeatedly
press the MENU button to return to normal viewing.
Low Power
- This is the function to reduce the power consumption of the set.
1. Press the MENU button and then use
2. Press the
G G
button and then use
3. Press the
G G
button and then use
4. Repeatedly
press the
Demo
- Use it to see the difference between XD Demo on and XD Demo off.
- It's not available to use this function in RGB[PC], HDMI[PC] mode.
1. Press the MENU button and then use
2. Press the
button and then use
G G
3. Press the
G G
button to begin
4. To stop
, press the MENU button.
XD Demo
18 PLASMA TV
button to select the SPECIAL menu.
D D
/
E E
button to select
D D
/
E E
button to select
D D
/
E E
MENU
button to return to normal viewing.
, the display '
Child lock on
button to select the SPECIAL menu.
D D / E E
button to select
D D / E E
button to select either
D D / E E
. If you unnecessary to set this function, set
button to select the SPECIAL menu.
D D / E E
button to select
D D / E E
button to select
D D / E E
MENU
button to return to normal viewing.
button to select the SPECIAL menu.
D D / E E
button to select
D D / E E
.
XD Demo
.
Child lock
or
.
On
Off
' appears on the screen if any button on the front panel is
.
ISM Method
,
Normal
White wash
.
Normal
.
Low power
or
.
On
Off
.
XD Demo
,
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text:
Beaded Pad Saddle
Materials: moose hide, fabric, glass beads, thread, yarn, and unknown stuffing
This beaded pad saddle comes from the Cree Nation of the northern Great Plains region in the United States. The Cree are one of the major Algonquian-speaking North American tribes and reside mainly west of Lake Superior as well as in Canada. There are eight groups of Cree, including the Attikamekw, Swampy Cree, Montagnais, and Plains Cree. This saddle is specifically from the Plains Cree tribe and was made around the year 1880 A.D.
This piece displays the influence of Europeans in multiple ways. After the arrival of Europeans, glass seed beads and horses, among other things, were traded to the natives. The Cree are known for their artistic beadwork and such work is displayed proudly on our saddle. Each corner and adjoining rectangular tab is adorned with varying floral designs, all created with tiny glass seed beads. Multiple yarn tassels are also attached to each corner. These decorative elements are strategically placed so that they remain visible while the rider is seated on the saddle. Note the center tabs where a rope would have been threaded through holes in order to hold the saddle onto a horse. The Plains Cree were a nomadic people and horses proved to be very helpful in traveling and hunting.

source: HuggingFaceFW/fineweb-edu


Bronze Duke of Edinburgh Practice Expedition April 2018
The Bellshill Academy Bronze Duke of Edinburgh group recently completed their first overnight expedition to Strathyre in Stirling. The group successfully navigated from Kilmahog to Balquhidder, working as a team to read the map and navigate using a compass. The group also worked on their expedition aim to track their steps and use the outdoors to increase their fitness. The school group of S6 pupils were also joined by a group of pupils from S3-4 who are completing their Duke of Edinburgh award via the local youth group in the Orbiston area of Bellshill. Both groups had an enjoyable expedition and worked hard to learn the skills they will need to pass their final expedition. The pupils are now focusing on their exams and will complete their final expedition to Auchengillan at the start of June.


BDBComp
Parceria:
SBC
Um Estudo sobre a utilização de Sistemas Hápticos em Ambientes Virtuais Colaborativos
Bruno Rafael de Araújo SalesLiliane dos Santos Machado
Collaborative Virtual Environments are virtual environments where multiple users may share the same space and participate in any collaborative activity. The use of haptic systems in these environments allows, in certain types of tasks, a more natural interaction and can improve users' performance and feeling of immersion in the experiment. This paper presents the use of haptic systems in collaborative virtual environments where a user can guide others through a haptic device. This study aimed to verify how such type of collaboration can be used for remote training on topics whose understanding depends on the sense of touch.
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Caso o link acima esteja inválido, faça uma busca pelo texto completo na Web: Buscar na Web
Biblioteca Digital Brasileira de Computação - Contato: _EMAIL_
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text:
Birao climate guide, Central African Republic
Welcome to the Birao climate guide, which shows average weather for Birao, Central African Republic. Check maximum temperature, the number of days with rainfall and daily hours of sunshine for each month of the year.
Birao climate guide: quick links
Maximum temperature (°C) in Birao
Days with some rain in Birao
Hours of sunshine in Birao
The Birao climate guide is provided by Weather2Travel.com. For more information about the weather in Birao, Central African Republic including monthly rainfall, mininum temperature, UV maximum, heat & humidity and daylight hours visit the Central African Republic climate guide page.


text:
Recently, some of our CKSA employees got together to create a submission for the Ivy Tech Community College's Edible Book Festival. The festival is geared towards Baking and Pastry Students attending Ivy Tech, however the showcase is open to the public as well. The Edible Book Festival is an international program in which libraries and bookstores celebrate books with food. Revolved around National Library Week, many libraries around the nation and world participate. The showpieces must be made of edible products and reflect a particular book. Some entries depicted scenes from books where others looked like the front cover or maybe even a character.
CKSA drew inspiration from many illustrations from the popular Dr. Seuss Book Oh, The Places You'll Go. They wanted to use the project as a platform to try out different techniques they had not used before. The cake started out with a tie dye effect cake, created by dividing cake batter up into different bowls, then dying the portions each a different color then layered into the baking pans. Using the Wilton Punch Set and Rainbow Zig Zag Designer Strips LK-47089P, they punched out hot air balloons and adhered them to the fondant covered cake. They also made plaques out of run royal icing fitted to the sides of one tier to replicate the bands of color as shown on the front cover of the book. The figures were hand modeled out of candy clay ( 1 lb. candy coating to 2/3 cup corn syrup) and gum paste. The most impressive work was the Isomalt balloon made by warming up isomalt and squeezing air into it, creating an edible 3-D hot air balloon. The project seemed to be a learning experience for all participants and the piece was very well received at the festival.


text:
Date of this Version
The concept of imaging politics and professional culture are two approaches that influence and control each other in managing library performance. This research is conducted by initially looking at imaging politics that operates on aspects of academic qualifications, library accessibility, and institutional governance among three libraries. These institutional images are analyzed through three patterns of imaging politics, i.e. mirror of reality, map of reality, and simulacrum of reality, albeit this last pattern is not found. The second analysis is based on professional culture that functions as a ballacing system. Professional culture in library management shows itself as a referential standard for the performance and practices at the libraries. Both analyses are based on information sources in the form of interviews of informants, which are supported by library documents in digital formats and direct observation during interviews and a number of other visits at the study sites. Then, the third analysis focuses on relations between imaging politics and professional culture at the libraries through theoretical frameworks and other related concepts. In the process of analysis there is implicitly found different ideological orientations at the three libraries. Unfortunately, this research is not designed for this purpose, so it is interesting if there is another further research that works for the phenomena within the framework of imaging politics and professional culture at libraries.


Definitions for scalper
This page provides all possible meanings and translations of the word scalper
Princeton's WordNetRate this definition:(0.00 / 0 votes)
 1. scalper(noun)
 "he got theater tickets through a scalper"
WiktionaryRate this definition:(0.00 / 0 votes)
 1. scalper(Noun)
 One who scalps tickets to popular entertainment events: buying them in advance and then selling them (e.g. online or just outside the venue of the event), often at inflated prices
 We could see three different scalpers moving through the crowd outside the arena, each muttering the characteristic refrain: u201CNeed any tickets?u201D
 2. scalper(Noun)
 A person on an open outcry exchange trading floor who buys and sells rapidly for his or her own account, aiming to buy from a seller and a little later sell to a buyer, making a small profit from the difference (roughly the amount of the bid/offer spread, or less).
Webster DictionaryRate this definition:(0.00 / 0 votes)
 1. Scalper(noun)
 one who, or that which, scalps
 2. Scalper(noun)
 same as Scalping iron, under Scalping
 3. Scalper(noun)
 a broker who, dealing on his own account, tries to get a small and quick profit from slight fluctuations of the market
 4. Scalper(noun)
 a person who buys and sells the unused parts of railroad tickets
 5. Scalper(noun)
 a person who buys tickets for entertainment or sports events and sells them at a profit, often at a much higher price. Also, ticket scalper
FreebaseRate this definition:(0.00 / 0 votes)
 1. Scalper
 Scalper, is a London-bred rapper, producer and songwriter of Pakistani descent, who is now based in Auckland, New Zealand.
Anagrams of scalper »
 1. carpels
 2. parcels
 3. clasper
 4. reclasp
 5. placers
Translations for scalper
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text:
S'pore Flat Paints Ang Ku Kuih, Kuih Lapis & More To Help The Elderly Find Their Way Home
While taking a morning walk around her neighbourhood, a woman discovered beautiful murals of nostalgic items on the walls of Ang Mo Kio Avenue 4, a Housing and Development Board (HDB) estate in Singapore
The murals feature familiar, retro items such as White Rabbit candy, ang ku kuih, kuih lapis, satay, the iconic rooster bowl and kopi cup, painted tiffin carriers, tang yuan, and other age-old designs.
After spotting these murals, she shared pictures of the artwork to a Facebook group, Singapore Hikers. The post has since received 1,100 likes at the time of writing.
In her post, she explains that these murals are part of a wayfinding project to aid persons living with dementia and the elderly in recognising their surroundings
The murals are strategically painted on the HDB void deck walls with their respective block numbers. Since most of the blocks look the same, the artwork is large and distinguishable so people can easily spot them from afar and identify their blocks.
The murals were painted in 2020 as part of an initiative by Singapore's Alzheimer's Disease Association (ADA) to build dementia-friendly communities
For the elderly, these classic items may spark memories, which helps them identify their surroundings. These eye-catching murals serve as visual markers to guide the elderly and persons with dementia or Alzheimer's to navigate around the neighbourhood.


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I have a huge log file of around 3.5 GB and would like to sample random sections in the middle of say 10 MB for the purpose of debugging what my application is doing.
I could use head or tail commands to get the beginning or end of the file, how can I grab an arbitrary portion from the middle of the file? I guess I could do something like head -n 1.75GB | tail -n 10MB but that seems clumsy and I'd need to determine line numbers for the midpoint of the file to get 1.75GB and 10MB line counts.
share|improve this question
3 Answers 3
up vote 6 down vote accepted
$ dd if=big_file.bin skip=1750 ibs=1MB count=10 of=big_file.bin.part
You might want to spend some time reading and understanding dd.
share|improve this answer
As dd is not aware of lines, you may want to trim of the first and last one, so as only complete lines are included, e.g.: dd... | head -n-1 | tail -n+2 or with sed: dd... | sed '1d; $d'. – Thor Feb 22 '13 at 10:19
You can use use tail, but by specify a byte offset.
tail -c +$START_BYTE $file | head -c $LENGTH > newfile
That way tail can jump directly to the starting point (without counting new lines) and once head matches the correct length, it stops running.
share|improve this answer
Nice one. This works with arbitrary byte offsets and sizes, which dd can't do. – Mike Jan 9 at 0:06
You just have to write a little program to seek to some random spot and read some amount of lines.
An example in Python (reads one line, but you can modify it):
def get_random_line():
 """Return a randomly selected line from a file."""
 import random
 fo = open("/some/file.txt")
 point = random.randrange(fo.size)
 c =
 while c!= '\n' and fo.tell() > 0:
 , 1)
 c =
 line = fo.readline().strip()
 return line
share|improve this answer
Your Answer


text:
This 1,303-acre preserve located in the towns of Sullivan, Nelson, and Stoddard, provides vital habitat for several endangered natural communities.
Abutting more than 13,000 acres of protected lands (including the Andorra Forest), Otter Brook Preserve provides critical wetland and riparian habitat for wildlife. The preserve protects significant portions of the headwaters of Otter Brook, as well as parts of the watershed for Sullivan's largest and most productive aquifer.
The Nature Conservancy of New Hampshire established the Otter Brook Preserve in 1999. Located in Nelson, Stoddard, and Sullivan, the preserve offers excellent landscape scale conservation value due to its extensive core forest, adjoining conservation land, wetlands, and wildlife habitat. The preserve supports exemplary natural communities, including pristine ponds and acidic fens, and has excellent recreational and scenic value.
At nearly 15,000 acres, the Andorra Forest/Otter Brook conservation area is one of the largest contiguous forest blocks in Southwestern New Hampshire. It is this type of landscape scale conservation that will make a significant impact on the preservation of New Hampshire's most special places.
The Conservancy and its hardworking volunteers have established a 4.8-mile trail system at this relatively new preserve. The trail winds through diverse forest types to bring visitors to Bolster Pond and Brook, Otter Brook, Ellis Reservoir, and several other cultural features on the preserve.
Click here to download a trail map (.pdf, 594 kb).


text:
The Vet Rhino Fund is an umbrella name which was created for the three funds which resort under it. The three funds are:
- The South African Veterinary Association Rhino Fund
- The South African Veterinary Foundation Rhino and Conservation Fund
- Saving the Survivors Fund
The three funds all aim to contribute to the fight against rhino poaching in Southern Africa by serving different constituencies, focusing on different aspects and being governed by different organisations, covering the wide footprint of the complexity of the war against rhino poaching from a veterinary perspective. Donations can be made directly into any of the funds. Funds donated through the Veterinary Foundation, are tax deductible because of the Public Benefit status of the South African Veterinary Foundation. You can learn more about each fund and it focus area by clicking on the relevant logo of the fund.


Netflix Sencha Touch 2 app with JayData
Author: Viktor Lazar June 7th, 2012
,,,,
JayData seamlessly integrates into Sencha Touch 2 through the JayData Sencha module. You only have to modify the proxy on your Sencha data store to use the JayData proxy and define a queryable as the data source. Using remoteFilter, remoteSort and pageSize your query will be processed by JayData. Currently the module only supports read-only functions. To add, update or delete entities you can still use JayData directly in your code.
To follow this tutorial it's required to have basic knowledge of Sencha Touch 2 to understand the Sencha Touch 2 parts of the tutorial.
You can see the final app here.
Initializing the JayData context
Initializing the JayData context is easy as always. This Netflix app uses the public OData service of Netflix. After running the JaySvcUtil tool to get the context definition of the Netflix service you only have to reference the context script. JaySvcUtil already includes an instance of the context in the generated script so you don't have to do it manually. Here you can find a tutorial about using the JaySvcUtil tool.
Store definition using JayData proxy
JayData integrates itself into Sencha Touch 2 through a data proxy. You only have to define the JayData proxy on your store. Here is the store definition part of our example:
As you can see the proxy uses a queryable as the data source instead of an URL like other Sencha server stores. This way you can use any queryable of any context you defined and instantiated in your application. You are not restricted to the OData provider. You can use the Facebook, YQL or any other providers of JayData too.
Predefined query filtering and sorting is supported like in the example. By default we sort the data as defined in the store and you can have as many query operators in the store definition as you want.
From now on you can use the filtering, sorting and paging functions of the store as is.
The function parameter of the filterBy function of the Sencha store or any other filter or sort method of the store where you can pass a function as a parameter you literally pass the function to the equivalent JayData method (like.filter(),.orderBy(), etc.).
If a use case is not supported by Sencha or the JayData module you can still use JayData directly. Like in the details view of a movie. When a movie item is tapped we load the details in the event listener function.
In the above source code part we directly query the database using JayData. For the data query we don't use anything from the Sencha library. But in the callback function of the toArray method we build the content using the templating engine of Sencha.
Native mobile app
The Netflix example app is a hybrid application. You can launch it in the browser or you can use PhoneGap and convert it to a native mobile app. Because of the browser limitation of cross-domain AJAX calls you have to include a few additional lines if you want to deploy the app on the web.
With this function we hijack the AJAX request to transform it to a JSONP request. This way the cross-domain issue no longer bothers you. But be careful because JSONP is only valid in a read-only scenario.
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If you're out and about and see an upside down sheep you could be forgiven for thinking it was just resting.
But Avon and Somerset Constabulary has warned it can actually be something much more sinister.
The force has warned people sheep could be in a near-death experience if they are lying on their back.
During the winter months sheep grow more wool and their fleece can become extremely heavy if there is a lot of rain.
his can cause the sheep to topple over due to the sheer weight and being left on their back.
If left for too long in this position, the animal can suffocate and die.
Police shared the following post on its rural crime page, Somerset Live reports.
A Facebook user has been warning others about the issue. In a post, she said: "If you spot a sheep in this position, they're not sunbathing.
"If they are left like this, they will die."
The post also offers advice on what to do if you find a sheep in the awkward position.
It says: "If you are able to, turn them up the right way, or try to find someone that can.
"If they have been upside down for a long time, it may take several attempts for them to stay upright."
The post also says people may have to hold on to them for a while while the water drains from their coats.


text:
Today is the decoration, many people will have their own family decoration, especially the wall decoration is more attentive, the wall is beautiful, after all, it will bring people different experience, so many people will choose diatom mud paint, diatom mud quality also has good and bad, however, how to choose good diatom mud? Jinan tooling decoration company will take you to know!
From the color of diatom mud
Jinan mold company believes that the main component of diatomite is diatomite, which is natural and environmentally friendly, non-toxic and harmless, but has a single color. The colorful diatomite products on the market are all processed by later factories with pigments.
Some manufacturers use inferior pigments to reduce costs. Diatom mud looks brighter and more colorful than natural pigments, but because it contains toxic substances such as heavy metals, long-term use will cause harm to human body, and the color will be changed soon after the color is kept for a short time. The diatom mud made of natural pigment is soft in color and even in use. After coating, the eyes look comfortable without uncomfortable feeling. Diatom mud uses natural inorganic pigment, safe and environmental protection, non-toxic and harmless!
2. High temperature resistance of diatom mud
Diatom mud has the characteristics of high temperature resistance and non combustion, which can not be ignited by fire in daily life, and has good heat insulation performance.
3. Water absorption from diatom mud
Jinan mold company believes that because of the porous structure of diatomite, which is more than 6000 times of the ultra-fine pore of activated carbon, diatomite mud can not only absorb formaldehyde in the air, but also has a strong water absorption. Good diatomite mud can spray water 20 times at the same location without dropping water, and it will not fade or fall with hands.
But the inferior diatom mud, as long as sprays on several times will have the moisture to drop, the water absorption is not good, with the hand touch will drop the powder to fade. The adsorption capacity of diatom mud is stronger than that of general diatom mud, of course, the water absorption capacity is also stronger.
4. It feels like it comes from diatom mud
Due to the characteristics of diatom mud itself, the painted wall can be a gentle feeling. It is very loose to touch with hands, and the feeling we like. Our commonly used cork of thermos bottle is delicate and comfortable, and the design is smooth and smooth.
And some poor diatom mud because it is mixed with many other impurities, it gives a cold feeling, rough hands feel very uncomfortable, the formation of patterns is also very fuzzy.
5. Taste of diatom mud
Diatomite is made of natural diatomite. It has only fresh soil and no pungent smell. When you choose to buy, you can take a small number of samples and put them into water for mixing. If you can smell the pungent smell, the quality will be very poor.
The above is the selection skills of the diatom mud in Jinan tooling decoration company. Through the introduction of this article, we must have a certain understanding of the diatom mud. In addition, we remind you that diatom mud will easily deform, so the wall is dirty. Do not scrub it with wet cloth. If there is much dust on the wall, you can flick the wall with feather duster. If there is any fingerprint, you can wipe it with eraser.


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Following the devastating bushfires on the NSW South Coast, the Australian Government and Catholic Education Archdiocese of Canberra and Goulburn are providing a range of supports to affected children, families and communities.
The Australian Government will:
- provide mental health support for school staff, students and families in bushfire affected communities
- provide financial support to child care services in bushfire affected communities
- provide Child Care Subsidy (CCS) activity test debt exemptions for families in bushfire affected communities
- provide an additional $400 to families for each child aged under 16 that is eligible for the Australian Government Disaster Recovery Payment
- provide scholarships for regional students from bushfire affected communities to help them attend university
Further information on these assistance packages can be found on the Department of Education website.
Catholic Education Archdiocese of Canberra and Goulburn (CECG)
CECG has committed to providing practical and financial support to their schools in Batehaven, Broulee and Moruya that have been affected by the bushfires. This support includes:
- total fee remissions to families
- additional relief staffing to affected schools
- additional counselling services for students, staff and the wider school community
For more information contact Ben Duggan on (02) 6234 5454.
For information on personal hardship and distress assistance, contact the Disaster Welfare Assistance Line on 1800 018 444.


Optical Measurement of Granite Tranches.
Automatic contour recognition
In association with Kusser Aicha Granitwerke FORWISS has developed an optical measuring system for granite plates. The informations on these so called tranches are saved in a relational database system. During the measuring process the system will automatically recognize parts of the tranche that were marked as defective by simply covering the surface with painted tiles.
In addition a colored picture of a small part of the tranche will be shot in order to classify the surface color and structure of the granite tranche. This picture will also be stored in the database.
Kusser Aicha Granitwerk - ball spring
On the basis of the database proper tranches could be chosen by a salesclerk to simplify customer requests. To do this, it had been necessary to implement intelligent search functions, an estimation and optimization of the production waste and the value of the remaining tranche, and the possibility of comparing the surface collor of different tranches
The whole software system can be controlled with a modern interactive user interface and leads to efficient storage administration and quality assurance in a middle class company.
Project staff
Project partners


How-To Geek
Taste with Their Legs
Hide Eggs in Wasp Nests
Produce Freeze-Proof Eggs
Lay Poisonous Eggs
Answer: Taste with Their Legs
Some species of butterflies have a rather curious talent that we should all be glad humans do not possess: they can taste via their legs. These butterflies have special hairs on their legs called gustatory sensilla that are the same specialized hairs found on their mouths and antenna that function as taste receptors.
How does tasting via their legs help the butterflies? By tasting the leaves they alight on, they can immediately determine if the plant is a suitable host for their eggs. In a world where predators are many and dallying on a plant is dangerous, the ability to instantly determine if the plant they've landed on is hostile or an ideal spot to leave their young offers a huge advantage.
Image courtesy of Daniel Hall.
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(x) or equivalently G(x), in view of (94), is an absolutely continuous measure. A sufficient condition for G(x) to be absolutely continuous is the absolute integrability of g(t), that is \(\int _{-\infty }^{\infty } |g(t)| dt <\infty. \) Next, observe that g(t) is given by
$$\begin{array}{*{20}l} g(t)&= -\frac{ \phi_{p}(t)\phi_{p}^{\prime \prime}(t)-\left(\phi_{p}^{\prime}(t)\right)^{2}}{\phi^{2}_{p}(t)},\\ \phi_{p}^{\prime}(t)&=-t \mathbb{E} \left[ V_{G,p}^{2} \mathrm{e}^{-\frac{V_{G,p}^{2} t^{2}}{2}} \right], \, \phi_{p}^{\prime \prime}(t)= t^{2} \mathbb{E} \left[ V_{G,p}^{4} \mathrm{e}^{-\frac{V_{G,p}^{2} t^{2}}{2}}\right] - \mathbb{E} \left[ V^{2} \mathrm{e}^{-\frac{V_{G,p}^{2} t^{2}}{2}} \right]. \end{array} $$
Next, we give an upper bound on |g(t)| for large t. By the triangle inequality
$$\begin{array}{*{20}l} |g(t)| &\le \frac{ | \phi_{p}^{\prime \prime}(t) | }{\phi_{p}(t)} + \frac{\left(\phi_{p}^{\prime}(t)\right)^{2}}{\phi^{2}_{p}(t)} \\ &\le \frac{t^{2} \mathbb{E} \left[ V_{G,p}^{4} \mathrm{e}^{-\frac{V_{G,p}^{2} t^{2}}{2}}\right] + \mathbb{E} \left[ V_{G,p}^{2} \mathrm{e}^{-\frac{V_{G,p}^{2} t^{2}}{2}} \right]}{ \mathbb{E} \left[ \mathrm{e}^{-\frac{V_{G,p}^{2} t^{2}}{2}} \right]} + t^{2} \left(\frac{\mathbb{E} \left[ V_{G,p}^{2} \mathrm{e}^{-\frac{V_{G,p}^{2} t^{2}}{2}} \right]}{\mathbb{E} \left[ \mathrm{e}^{-\frac{V_{G,p}^{2} t^{2}}{2}} \right]} \right)^{2} \\ &= \frac{t^{2} \frac{A_{4}}{t^{p+5}} + \frac{A_{2}}{t^{p+3}} }{ \frac{A_{0}}{t^{p+1}}} + t^{2} \left(\frac{ \frac{A_{2}}{t^{p+3}}}{ \frac{A_{0}}{t^{p+1}}} \right)^{2} = O \left(\frac{1}{t^{2}} \right), \end{array} $$
(95)
where (95) follow from Proposition 11.
The bound in (95) implies that g(t) is absolutely integrable and G(x) and θ(x) have densities. Moreover, by the inversion formula for the cosine transform the density of G(x) and θ(x) are given by
$$ f_{G}(x) =\left(1+x^{2}\right) f_{\theta}(x)= \frac{2 }{2 \pi} \int_{0}^{\infty} - \left(\log \phi_{p}(t) \right)^{\prime \prime} \cos(tx) dt. $$
(96)
Next, by using integration by parts we have for x≠0
$$f_{G}(x) =- \frac{x }{ \pi} \int_{0}^{\infty} \left(\log \phi_{p}(t) \right)^{\prime} \sin(tx) dt, $$
where \( -\left (\log \phi _{p}(t) \right)^{\prime } \cos (tx) |_{0}^{\infty } =0\) follows from Proposition 11. For x=0 using (96) we have \(f_{G}(0)= - \frac {1}{\pi } \int _{0}^{\infty } \left (\log \phi _{p}(t) \right)^{\prime \prime } dt.\) This concludes the proof.
Appendix K: Proof of Theorem 6
Case of {(p,q):1<p=q}{(2,2)}
In this case, since p=q, we return to the proper definition of self-decomposability (Definition 8). From (Lukacs 1970, Theorem 5.11.1) we have that all distributions with self-decomposable characteristic functions are infinitely divisible. However, in Theorem 5 we have shown that GG distributions are not infinitely divisible for p(1,){2}. Therefore, for p(1,){2} the function ϕ(p,p,α)(t) is not a characteristic function.
Case of {(p,q):0≤p=q≤1}
In this case, since p=q, we return to the proper definition of self-decomposability (Definition 8). The proof of this case was outlined in (Bondesson 1992, p. 118) and it required the following definitions:
Definition 9
 1. 1
 (Extended Generalized Gamma Convolution (EGGC) (Bondesson 1992, p.105).) An EGGC is a distribution on \(\mathbb {R}\) such that the bilateral Laplace transform \(\psi (s)=\mathbb {E}[\mathrm {e}^{sX}], \, s\in \mathbb {C}\), defined at least for Re(s)=0, has the form
 $$ \psi(s)=\mathrm{e}^{bs+\frac{cs^{2}}{2} +\int \left(\log \left(\frac{t}{t-s} \right) -\frac{st}{1+t^{2}} \right) dU(t) }, $$
 (97)
 where \(b\in \mathbb {R}, c \ge 0\), and dU(t) is a non-negative measure on \(\mathbb {R} \setminus \{0 \}\) such that
 $$ \int \frac{1}{1+t^{2}} dU(t)<\infty, \text{ and} \int_{|t|\le 1} | \log\left(t^{2}\right)| dU(t)<\infty. $$
 (98)
 2. 2
 (\(\mathcal {\beta }\)-Class (Bondesson 1992, p. 73).) A pdf f of a non-negative random variable belongs to the \(\mathcal {\beta }\)-Class if f can be written as follows:
 $$ f(x)=C x^{\beta-1}\frac{h_


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1. Generation Change Fellows Program 2020
The United States Institute of Peace is an independent, nonpartisan institution established and funded by Congress to increase the nation's capacity to manage international conflict without violence. USIP aims to "think, act, teach, and train" across the spectrum of international conflict prevention, management, and resolution and to help societies in the period of post-conflict stabilization. Learn more about USIP.
About the Generation Change Fellows Program
The Generation Change Fellows Program (GCFP) is dedicated to strengthening the capacity of civically engaged youth leaders as they emerge as peacebuilders in their communities. By delivering training in effective leadership, conflict management, and prejudice awareness and reduction; providing online courses and other resources; and fostering a global learning community, the two year Fellowship gives participants the additional skills, knowledge, support, and resources needed to increase their resilience as peacebuilders and civic leaders, manage conflict at a local level, and increase the effectiveness of their peacebuilding programs.
Generation Change Fellows are between 18 and 35 years old. They hold leadership roles within civic organizations and are actively working to positively impact their community. The Fellows have earned trusted and legitimacy within their community through their demonstrated commitment to their work.
About the Training
The five day program will deliver training in effective leadership, conflict management, and prejudice awareness and reduction in order for these emerging leaders to increase their resilience and have a greater impact on their respective communities. The training will provide a safe space for participants to share ideas, gain new tools, practice constructive conversations, and better understand conflict resolution, especially as it relates to their country. It will also expose participants to experts in the leadership development and conflict resolution
USIP Ethiopia Generation Change Fellows Program 2020 (Fully-funded)


¡Bienvenidos a Chapala Mexican Restaurant!
We're a family business and we first opened our doors in April of 2019 with the hope of bringing authentic and delicious Mexican food made with love to the Denver area. Thank you for coming to dine with us, and we're excited to provide y'all with the best food and service in town!
A brief history of Chapala:
Chapala is a town and municipality in the central Mexican state of Jalisco, located on the north shore of Lake Chapala, Mexico's largest freshwater lake.
Until the arrival of the Spanish in the 16th century, nomadic Amerindian tribes, including the Nahuatl, occupied the Lake Chapala region. They migrated from northwestern Mexico and gave rise to the Aztec civilization. Chapala is named after the last chief of the Nahuatl, Chapalac. Ajijic, the second largest town along the lake's northwestern shore, received its name from the Nahuatl word for "Place where the water springs forth."
Lake Chapala in southeastern Jalisco is Mexico's largest lake, occupying about 1,112 square kilometers (430 square miles). The lake provides critical habitat for several species of migratory birds, including the white pelican.
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Newark Basin
The Newark Basin is a sediment-filled rift basin located mainly in northern New Jersey but also stretching into south-eastern Pennsylvania and southern New York. It is part of the system of Eastern North America Rift Basins.
A USGS geological map of New Jersey and the surrounding region; the Newark Basin is outlined in white
USGS Stratigraphic Column of the Newark Basin
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This article uses material from the Wikipedia article Newark Basin, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.


What Is the Material PEVA? Why the peva lining of cooler bag is eco-friendly.
- Apr 20, 2018-
What Is the Material PEVA?
PEVA is a biodegradable, non-chlorinated vinyl which is commonly used in shower curtains, plastic wrap for food and sports padding. It is also called polyethylene vinyl acetate, or ethylene vinyl acetate.
PEVA is a safe alternative to using PVC shower curtains that can give off many volatile organic compounds which can be toxic, for the first month after removing it from its packaging. PEVA can also be used as a drug delivery device, when it is mixed with a drug and implanted, in order to slowly release the drug compound into the body in time. Top-of-the-line soccer cleats, boxing gloves, ski boots and bicycle saddles are also common uses of PEVA, too.


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experiment uses a two-stage approach. The first stage is a pilot
study conducted of military public affairs practitioners to identify if
they felt their office was properly utilized. The second stage uses
a pre-test, treatment, post-test to study PA perceptions and treatment
effects at military leadership schools.
Stage I: Pilot study
The pilot study (see Table 1) is a convenience sample of 15 public affairs
practitioners in the Department of Defense Joint Communications Course.
The participants represented members of the Army, Navy, Air Force, Marine
Corps, and Army National Guard. The study consisted of a survey intended
to determine how members of the military public affairs community felt
they were viewed by military leaders and servicemembers.
The survey consists of
1. Leadership Four questions
were used to determine if public affairs practitioners felt that leadership
understood the role of public affairs. The questions attempted to
see if leadership saw PA as a valuable tool, whether leaders understood
PAs roles and responsibilities and seriously accepted input from their
public affairs staff.
2. Utility Three
questions were used to determine if public affairs practitioners felt that
non-public affairs service members viewed Public Affairs as a viable tool
in planning. The questions focused on whether PA was used proactiviely,
included in the entire planning stage of an operation, and if public affairs
practitioners were accorded the same amount of respect as other professions
within the military.
3. Training Three questions
concerned the level of training required and available to the public affairs
practitioners. These questions ranged from how much training is available,
if PA training is required prior to being assigned to a public affairs
position, and whether service members are given PA responsibilities as
a secondary job.
Procedures & Design


Cypress
Cypress
Even though it is found as uncultivated, in many cases it appears as ornamental plant in gardens and fields where it is used as windbreak and also in cemeteries as it happens all over Greece. Boiled cypress cones and lentisk tufts in water after shampooing is a folk medicine against hair loss.
Scientific Name:
Cupressus sempervirens
Family:
Cupressaceae
Kythera Name:
Kyparissi
Name in other places of Greece:
Kyparissi
Collection:
Cypress cones are collected when they are still green and they are used to make drinks. Tree branches are also useful.
Properties:
Cypress cone drink stops hair loss if it is taken after frequent shampooing and it scent extinguishes insects like mosquitoes and flies.
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Queue in SystemVerilog
 - Queue in System Verilog is a variable-size, ordered collection of homogeneous objects.
 - Queue is similar to one-dimensional unpacked array that grows and shrinks automatically.
 - Queues can be manipulated using the indexing, concatenation, slicing operator and equality operators.
 - In queue 0 represents the first, and $ representing the last entries.
Queue Operators
0 : Used to represents the first element of queue
$ : Used to represents the last element of queue
{} : Used along with first and last operator to add/delete elements.
Queue Declaration
bit[3:0] data[$];
where:
bit[3:0] -> data_type
data -> name of the queue
$ -> Represents the last element of queue
Queues methods
MethodDescription
delete()It deletes the item at the specified index position.
insert()It inserts the given item at the specified index position.
size()It returns the number of items in the queue. If the queue is empty, it returns as 0.
push_front()It inserts the given element at the front of the queue.
push_back()It inserts the given element at the end of the queue.
pop_front()It removes and returns the first element of the queue.
pop_back()It removes and returns the last element of the queue.
Queue can be bounded or unbounded
bounded queue – queue with the number of entries limited or queue size specified
unbounded queue – queue with unlimited entries or queue size not specified
Advantage of Queue
 - Queue can have variable length, including a length of zero.
 - Queue will perform both Last In First Out (LIFO) and First In First Out (FIFO) behavior.
 - Queue will have support to adding and removing elements anywhere.
Queue Examples


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Surface Treatments on Pottery
Many ancient peoples used burnishing to make their pottery harder and more waterproof before they discovered the use of glazes. Contemporary potters can also use burnishing to great effect.
There is one very important point to keep in mind: burnished pottery should not be used for food or drink, with few exceptions.
Burnishing Pottery Tips
Tips from readers on burnishing pottery.
How to Cut Clay for Surface Decoration
Surface decorations in clay pieces include incising, carving, fluting, and faceting.
Impress Your Clay
Many objects can be used to make impressions in clay, not just tools specifically made for making impressions.


Geodynamics
Geodynamics
Definition Of Geodynamics Geodynamics is a subfield of geophysics that deals with the dynamics of the Earth. It involves the application of physics, chemistry and mathematics to the understanding of how mantle convection leads to plate tectonics and geologic phenomena such as mountain building, seafloor spreading, volcanoes, faulting, earthquakes and Read more…


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Drum Boilers are an important component of many modern industrial facilities. Generally, the simulation of tailormade Drum Boilers starts up at each steady-state condition inside each operation region. The problem of such systems is the control of parameters, as level and pressure, around a reference value. The design of control algorithms can be accomplished using intelligent techniques such as Fuzzy Logic and Genetic Algorithms. This paper proposes a Fuzzy Controller, optimized by Genetic Algorithms, able to control Drum Boiler dynamics. Genetic procedures are used to obtain optimal Membership Functions and Fuzzy rules. The results show that the timing performance of the control system are improved reducing the settling time and the rise time. Moreover, the system shows good robustness to different reference values.
|Titolo:||Control of Drum Boiler dynamics via an optimized fuzzy controller|
|Autori interni:||PELUSI, DANILO|
|Data di pubblicazione:||2016|
|Rivista:||INTERNATIONAL JOURNAL OF SIMULATION: SYSTEMS, SCIENCE & TECHNOLOGY|
|Appare nelle tipologie:||1.1 Articolo in rivista|


text:
[postgis-users] Aggregate Functions
pramsey at refractions.net
Thu Feb 20 09:48:30 PST 2003
What is an aggregate function? A function which works on a result set
and returns a summary. For example,
select max(salary) from employees
select mean(age) from patients
Both queries return a *single* value, the aggregate result.
What is a spatial aggregate? Same thing, only with goemetries. I really
look forward to being able to do this to create a single drainage
polygon for a river system:
select union(geom) from watersheds where ws_code > '_PHONE_'
Things might get confusing, because the opengis spatial operators will
have the same name but different arguments.
select union(a.geom,b.geom) from a,b where a.id = b.id
The standard union() function is a pairwise union.
I hope that confuses things substantially. :/
| Paul Ramsey
| Refractions Research
| Email: pramsey at refractions.net
| Phone: _PHONE_
More information about the postgis-users


text:
Exo Terra Heat Wave Rainforest Small РТ-2022 20 x 20 cm
The Rainforest substrate heater simulates a heated forest floor of tropical areas. The sun is often blocked by trees and clear skies are alternated by cloudy conditions in tropical areas or rainforests. Heavy rainfall keeps the soil often moist what results in a high air humidity, especially when the sun breaks through the clouds and heats up the moist soil. Because of the climatological conditions, the soil or substrate never heat up to the extreme like in desert environments. The power of the Heat Wave Rainforest substrate heater is designed to create these conditions in the terrarium.
- Ideal for humid or rainforest terrariums
- For under tank or tank wall mounting
- Conductive heat source for reptiles, arachnids and amphibians
- Helps in thermoregulating - important for metabolism, digestion, appetite and activity
- Safe, even heat distribution


plate tells the loader how to find the translation file. In this example, it's in /i18n/ directory. {part} will be provided later. {lang} is the language you use. It's set later too.
 2. Set the preferred language and fall back languages in your module configuration function. e.g.
 $translateProvider.preferredLanguage('zh_CN').fallbackLanguage('en_US');
 That tells the translate provider to look for translation for Simplified Chinese, and fall back to English if it's not found. This will set the {lang} for the loader.
 3. Load the translation file and refresh translation tables. This is done by
 $translatePartialLoader.addPart('contact');
 $translate.refresh();
 The translation file for 'contact' will be loaded. It sets the {part} in urlTemplate. So the translation file path is /i18n/contact/zh_CN.json.
 $translate.refresh() must be called every time a part is added. The document also suggests to refresh translation tables in event $translatePartialLoaderStructureChanged.
 app.run(function ($rootScope, $translate) {
 $rootScope.$on('$translatePartialLoaderStructureChanged', function () {
 $translate.refresh();
 });
 });

That seems straightforward. Everyone can add those code and start to use directives, filters or the service to translate their own applications. But that won't just work.
Both $translatePartialLoader.addPart() and $translate.refresh() are asynchronous. When you use directives, filters or the service to ask for translation for a given id, the translation table may not be loaded! This is what happens in my application. The document doesn't warn it, and doesn't present a solution either. The solution is simple, however. Both loadPart() and refresh() return promises. You have to ask $translate to get the translation after the promise refresh() is resolved. So you can do something similar to:
$translate.refresh().then(function() {
 $translate('TRANSLATE_ID').then(function(data) {
 $scope.SomeLabel = data;
 });
});
This is tedious. Every time when you try to translate something, you have to double check whether the translation table is ready. And you cannot use directives and filters. Because when the translation table becomes ready, it won't update the directives and filters. Here's an example to demonstrate the solution: _URL_
angular-translate is flexible in loaders and how to do translation (directives, filters or services). But there are some undocumented limitations (or bugs). When you use partial loader, you cannot use directives and filters. But at least, there's always another way of doing it. angular-translate still doesn't fail at getting the work done.
In C#, covariant and contravariant allow implicit conversion for generic type arguments. But they're not applied to struct or other value types including primitive type (except string) and enum.
Only an interface declaration can contain covariant and contravariant generic parameters.
A covariant allows to assign an object that is instantiated with a more derived type argument to an object that is instantiated with a less derived type argument. It's declared with keyword out with the generic type parameter. For example, this declares an interface with a covariant generic parameter: interface ICovariantInterface<out T>.
A contravariant does the reversed. It allows to assign an object that is instantiated with a less derived type argument to an object that is instantiated with a more derived type argument. It's declared with keyword in with the generic type parameter. For example, this declares an interface with a contravariant generic parameter: interface IContravariantInterface<in T>.
There are some built-in covariant and contravariant generic interfaces in C#, such as IEnumerable, IComparable.
Usually I would think that covariant in analogy to class hierarchy. It's similar to that a derived class can be assigned to a base class/interface. For contravariant, it's done in the opposite direction.
But we cannot use struct or other value types in covariant and contravariant. Both covariant and contravariant are applied to reference types. And reference types and value types have different memory layout.
So this is not allowed: IEnumerable<object> baseGeneric = new List<int>();.
This Guillaume Rouchon's post illustrates how to add a custom IntelliTraece event. Mine is to complement it with an enum type and updates in Visual Studio 2015 Update 2.
Let me summarize how to add a custom IntelliTrace event. The file you have to change is in a sub folder of Visual Studio installation folder, <VS installation folder>\Common7\IDE\CommonExtensions\Microsoft\IntelliTrace\14.0.0\en\collectionplan.xml. You need to have admin privilege to do that. This file only affect F5 debugging in Visual Studio. If you are using IntelliTrace standalone collector, you have to pass the collection plan file to the command line. So you can modify default one that comes with the standalone collector or write your own one.
What you need to do to add a custom event is
 1. Add a category under TracepointProvider/Categories
 2. Add an assembly under TracepointProvider/ModuleSpecifications
 3. Add your own diagnostic event specification under TracepointProvider/DiagnosticEventSpecifications
There are two ways of querying parameter values and returned values. The first is DataQuery. It's a simple declarative way using dot notation to get values of the parameter or the field in the parameter. It only supports primitive types. The other way is ProgrammableDataQuery. You have to provide your own IProgrammableDataQuery implementation to query a complex type.
For enum, we're going to use DataQuery.
We need to specify a type in the data query for enum. Intuition tells us we can use the enum type. But that's not working. The right type should be the underlying integral type. For example, int. The value is also an integral value too.
Let me illustrate it here.
I create a sample console application
using System;
namespace ConsoleApplication1
{
 enum Color
 {
 Red,
 Green,
 Blue
 }
 class Program
 {
 static void Main(string[] args)
 {
 PrintColor(Color.Blue);
 }
 static void PrintColor(Color color)
 {
 Console.WriteLine("Color: " + color);
 }
 }
}
Let's change the collection plan.
1. Add a new category.
<Category Id="enumSample" _locID="category.enumSample">Enum Sample</Category>
2. Add a new module
<ModuleSpecification Id="sample">ConsoleApplication1.exe</ModuleSpecification>
3. Add a diagnostic event specification
We're going to query the parameter color in the method PrintColor.
 <DiagnosticEventSpecification>
 <CategoryId>enumSample</CategoryId>
 <SettingsName _locID="settingsName.ConsoleApplication.PrintColor">PrintColor (Color)</SettingsName>
 <SettingsDescription _locID="settingsDescription.ConsoleApplication.PrintColor">Print the color</SettingsDescription>
 <Bindings>
 <Binding>
 <ModuleSpecificationId>sample</ModuleSpecificationId>
 <TypeName>ConsoleApplication1.Program</TypeName>
 <MethodName>PrintColor</MethodName>
 <MethodId>ConsoleApplication1.Program.PrintColor(System.Int32):System.Void</MethodId>
 <ShortDescription _locID="shortDescription.PrintColor.Color">Print Color "{0}"</ShortDescription>
 <LongDescription _locID="longDescription.PrintColor.Color">Going to print the color in integral value "{0}"</LongDescription>
 <DataQueries>
 <DataQuery index="0" type="Int32" name="color" query="" _locID="dataquery.PrintColor.Color" _locAttrData="color"></DataQuery>
 </DataQueries>
 </Binding>
 </Bindings>
 </DiagnosticEventSpecification>
Save the file and restart VS. The custom event shows in Tools/Options/IntelliTrace/IntelliTrace Events
IntelliTraceEventOptions
When I debug the program, the custom event appears in the Events table. Look at the description!


text:
Morphological study of the Lingual papillae of Jentink's flying squirrel (Hylopetes platyurus)
Keywords:Hylopetes platyurus, lingual papillae, light microscopy, scanning electron microscopy
This study describes the anatomy and histology of the tongue in the Jentink's flying squirrel (Hylopetes platyurus), a
rodent native to Indonesia (Borneo and Sumatra). We examined the characteristics of the tongue using scanning
electron microscopy (SEM) and light microscopy (LM). Macroscopic observations revealed three distinct regions: the
apex, corpus (body) and radix (root). The dorsal surface of the apex was characterized by a median groove and lacked
the lingual prominence that is common in many rodents. SEM and LM revealed the distribution of papillae over the
dorsal surface of the tongue. The papillae could be categorized as mechanical papillae (filiform, conical, large conical)
and gustatory papillae (fungiform, foliate, and vallate). Filiform papillae covered the apex and the anterior two-thirds
of the corpus. Fungiform papillae were distributed among the filiform papillae from the apex to the corpus, whereas
the foliate papillae were present only on the apex. Conical papillae were located on the posterior of the corpus, and the
large conical papillae were on the lateral surface of the lingual radix. Three vallate papillae were arranged in a "V"
pointing toward the larynx on the posterior part of the radix. This research provides the first detailed observations of
the lingual papillae in Hylopetes platyurus. The shape, structure and distribution of papillae are described and compared
with those in other rodent species.


Piper Skycycle
Piper PA-8 Skycycle
Piper PA-8 Skycycle

The Piper PA-8 Skycycle was a 1940s American single-seat light aircraft designed and built by Piper Aircraft at Lock Haven, Penn. Towards the end of 1944 Piper announced a number of aircraft it intended to build after the war. One of these was the PWA-8 (Post War Airplane 8).

The Piper PA-8 Skycycle

Piper PA-8 Skycycle In Flight
An aerodynamic test aircraft was built with the name Cub Cycle and it first flew on August 27, 1944 with a small two cylinder Franklin engine. The Franklin engine was replaced by a 37hp Continental A-40-3 and the aircraft first flight with the Continental engine on September 12, 1944.
The Skycycle was a fabric-covered mid-wing single-engined single-seat monoplane with a tailwheel landing gear. The fuselage was produced using a belly fuel tank as used on the F4U Corsair. The Cub Cycle was scrapped and a similar but new aircraft was built with the name Skycycle.
The Skycycle first flew on January 29, 1945 using the same Continental engine as the Cub Cycle. The aircraft was further modified in 1945 with a 55hp Lycoming O-145-A2 engine and designated the PA-8 Skycycle. No further examples were built.
Piper PA-8 Skycycle In Flight
The Piper Skycycle was planned to sell for less than $1,000 in the post-World War II market. The engine was the 65hp Lycoming; the main fuselage was adapted from a war surplus belly tank. The Skycycle was flown in prototype only.
Piper PA-8 Skycycle Callout
Piper PA-8 Skycycle Cockpit
Shown above we can see the cramped cockpit of the Piper PA-8 Cockpit
Specifications
3 View of the Piper PA-8 Skycycle
Length: 15 ft 8 in
Wingspan: 20 ft
Height: 5 ft
Gross weight: 630 lb
Powerplant: 1 × Lycoming
O-145-2, 55 hp
Performance
Maximum speed: 120 mph
Range: 400 miles


text:
How Many Calories Does A Beef Burger Have?
- 1 How many calories are in a cooked burger?
- 2 How many carbs does a beef burger have?
- 3 How much protein is in a 100g beef burger?
- 4 Does hamburger lose calories when cooked?
- 5 Is ground beef bad for weight loss?
- 6 Can you eat beef burgers on keto?
- 7 Is a plain hamburger healthy?
- 8 What is a serving of ground beef?
- 9 Are burgers full of protein?
- 10 Why beef is bad for you?
- 11 What meat has the most protein?
- 12 How many calories are in a 80/20 burger?
- 13 Should you drain ground beef for spaghetti?
- 14 How can I make ground beef healthier?
How many calories are in a cooked burger?
A traditional burger weighing 6 ounces before cooking and made with 80 percent lean ground beef has more than 435 calories. To go lighter you can use extra-lean ground beef (96 percent lean), which has 195 calories for 6 ounces, or 85 percent lean ground beef, which has 360 calories.
How many carbs does a beef burger have?
Hamburger or ground beef, 90% lean (3 ounce) contains 0g of carbs, 7.5g of protein, 3.1g of fat, and 60.7 calories.
How much protein is in a 100g beef burger?
|Typical Values||Per 100g / Per 100ml||A serving contains|
Does hamburger lose calories when cooked?
" Cooking and draining ground beef significantly reduces fat and calorie content," Dr. "During cooking, both moisture and fat content decrease within the meat. On average, 4 ounces of lean raw ground beef becomes 3 ounces (about 85 grams) of cooked meat," Dr. Garden-Robinson said.
Is ground beef bad for weight loss?
Ground beef: a complete protein In fact, research shows that moderately improving your protein intake can be an effective way to help manage weight, and that protein from meat had an even greater effect on weight loss than plant protein, such as protein from nuts and beans.
Can you eat beef burgers on keto?
Bring on the burgers. It's not too good to be true—ground beef is totally keto -approved! The low-budget meat you know and love can be incorporated into so many keto recipes whether you 're in the mood for Mexican, meatloaf, or maybe a little pasta action (with zoodles, of course).
Is a plain hamburger healthy?
While burgers are good sources of protein, iron and vitamin B12, they come with a lot of problems, according to nutrition experts—particularly the fatty meat, sugary ketchup and refined grain buns. The new survey did find that even burger lovers know they could choose a healthier sandwich.
What is a serving of ground beef?
Beef gives your body more of the nutrients you need. A 3 oz. serving of lean beef provides the following nutrients in about 150 calories: Ground Beef can be purchased in a variety of leaness options.
Are burgers full of protein?
Ground beef is a great source of iron, selenium, and B vitamins. Choose from cuts like 70, 80, 85, and 95 percent lean—though the leaner the meat, the less juicy and flavorful your burger. Regardless of cut, you'll get about 20 grams of protein, says Christine Rosenbloom, Ph.
Why beef is bad for you?
Eating too much red meat could be bad for your health. Sizzling steaks and juicy burgers are staples in many people's diets. But research has shown that regularly eating red meat and processed meat can raise the risk of type 2 diabetes, coronary heart disease, stroke and certain cancers, especially colorectal cancer.
What meat has the most protein?
The following chart list examples of foods that contain protein. Meat, poultry and fish.
|Food||Serving size||Protein grams|
|beef (ground, lean)||3 ounces||21|
|chicken breast (cooked)||3 ounces||26|
|cod (Atlantic)||3 ounces||19|
|haddock (smoked)||3 ounces||21|
How many calories are in a 80/20 burger?
Less shrinkage, too. What the Ratios Mean: The ratio is percentage by weight. Fat is higher in calories than protein, so a 4-ounce raw 80/20 beef patty has 285 calories, versus a 90/10 patty, which has 200 calories.
Should you drain ground beef for spaghetti?
You should drain the ground beef to remove any excess grease. If you don't the grease will pool on top of your sauce.
How can I make ground beef healthier?
There's a simple and, in my opinion, quite profound way to reduce the fat content in ground beef by 50 percent! Just rinse the fat off. The other awesome thing – rinsing and draining ground beef washes away the fat without decreasing the vitamins and minerals or messing up the flavor.


Aspect Source Flags (ASFs)
GKS allows for two methods of specifying attributes for output primitives. One way, which is the way that has been discussed exclusively in this guide, is to specify the attributes individually. Using this method, if you want to change the width of a polyline, then you would call GSLWSC to specify the desired width, and this setting would be in effect until GSLWSC was called again.
The other method of specifying attributes for output primitives is called "bundled". Using this method, the attributes are contained in "bundle tables". These tables contain settings for all of the attributes associated with a given output primitive. For example, there can be one or more bundle tables for polylines each of which contains settings for linetype, linewidth scale factor, and polyline color index. Using the bundled attribute setting scheme you set a value for the number of the bundle table that should be used to find the desired setting for the attributes.
Clearly the individual attribute setting scheme and the bundled attribute setting scheme cannot both be in effect simultaneously. GKS supplies a means by which you can specify whether a given attribute should come from its individual setting, or from a bundle table. Associated with each output primitive attribute is an "aspect source flag." The legal values for these flags are "1" for "individual" and "0" for "bundled." Each time GKS draws an output primitive, it first looks at the setting of the aspect source flag for the appropriate attributes, and then either uses the individual setting if the aspect source flag value is "1" or the setting from a specified bundle table if the setting is "0".
All default settings for output primitive attribute aspect source flags are "individual" in NCAR GKS. In higher levels of GKS it is possible for you to define your own bundle tables and select them, but at level 0A, this is not allowed. As implemented, using bundle tables in NCAR GKS is of no value and trying to use them is not advised. The only reason that aspect source flags are discussed here is because the default environment in some GKS packages is "bundled" rather than "individual." In the case that you run NCAR Graphics on top of a non-NCAR GKS package, you will want to check on the default setting for aspect source flags, and if it is "bundled", then you should initialize all the flags to "individual" by using the subroutine GSASF described below. If you do not have access to the necessary GKS documentation, then you can use the subroutine GQASF, described below, to determine the values of the aspect source flags and then, if they are bundled, set them to individual by calling GSASF.
Set Aspect Source Flags
--------------------------------------------------
 Argument | Type | Mode | Dimension
--------------------------------------------------
CALL GSASF (LASF) | Integer | Input | 13
--------------------------------------------------
LASF
List of aspect source flags. A value of 0 means bundled and a value of 1 means individual. The ordering of the flags in LASF is:
1 - linetype ASF
2 - linewidth scale factor ASF
3 - polyline color index ASF
4 - marker type ASF
5 - marker size scale factor ASF
6 - polymarker color index ASF
7 - text font and precision ASF
8 - character expansion factor ASF
9 - character spacing ASF
10 - text color index ASF
11 - fill area interior style ASF
12 - fill area style index ASF
13 - fill area color index ASF
Defaults:
In NCAR GKS all values of LASF are initialized to 1. Other GKS packages may initialize these values to 0.
Errors:
8
-------------------------------------------------------------------
C Synopsis
#include <ncarg/gks.h>
void gset_asfs(
 const Gasfs *list_asf /* list of asfs */
);
-------------------------------------------------------------------
Inquire Aspect Source Flags
---------------------------------------------------
 Argument | Type | Mode | Dimension
---------------------------------------------------
CALL GQASF (ERRIND, | Integer | Output |
 LASF) | Integer | Output | 13
---------------------------------------------------
ERRIND
Error flag. Gives an integer error number from the errors list in in Appendix D, or a 0 if no error occurred.
LASF
List of aspect source flags. A value of 0 means bundled and a value of 1 means individual. The ordering of the flags in LASF is:
1 - linetype ASF
2 - linewidth scale factor ASF
3 - polyline color index ASF
4 - marker type ASF
5 - marker size scale factor ASF
6 - polymarker color index ASF
7 - text font and precision ASF
8 - character expansion factor ASF
9 - character spacing ASF
10 - text color index ASF
11 - fill area interior style ASF
12 - fill area style index ASF
13 - fill area color index ASF
Defaults:
In NCAR GKS all values of LASF are initialized to 1. Other GKS packages may initialize these values to 0.
Errors:
8
--------------------------------------------------------------------
C Synopsis
#include <ncarg/gks.h>
void ginq_asfs(
 Gint *err_ind, /* error indicator */
 Gasfs *list_asf /* aspect source flags */
);
--------------------------------------------------------------------
Links: GKS Index, GKS Home


DCC Distributed Checksum Clearinghouse
So what is the meaning of DCC. DCC stands for Distributed Checksum Clearinghouse and is a function thar can be used to make a mathematical checksum of the e-mail. This checksum is sent to participants in DCC. If a e-mail/checksum has been seen enough times on the network then it can be classified as a spam e-mail.
A checksum is a mathematical formula that can take a text and make it to for example a 128 bits string. So for example the Moby Dick book will be calculated down to a 128 bit string. If one character in Moby Dick is changed then the checksum will not be the same checksum as before.
Anti spam links
Anti-spam articles
More anti-spam articles
STA - Bayesian
Spamkiller from Mcafee
Cloudmark anti-spam
Antivirus program
Virus and Malware information
Exe file information
DLL file information
Security Articles
Anti-spam information
 Anti-spam products


FAKE SERVO CAMERA
Introduction: FAKE SERVO CAMERA
We made a fake(real-looking) camera using arduino uno, servo motor and LEDs.
Teacher Notes
Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.
Step 1: Fake CCTV Camera
What is it ?
It is a real-looking camera that can be installed to intimidate people.
Why to use it ?
it can be use to scare away people(or animals) that enter your house.
Step 2: Requirements
cardboard - 1
jumper wires - as required
LED - 4
micro servo - 9g
arduino uno - 1
power supply - 2 x 9v battery
Step 3: Procedure
connections
1. connect the (+) pin of the battery to Vin and (-) pin to Gnd.
2. connect the (-) pin of servo to Gnd, (+) pin to 5V and Out pin to pin 9 on arduino.
3. make a series of 4 led's using 1 battery.
camera using cardboard
1. Cut a rectangular piece of a cardboard. Then fold it into a cylinder. Make 4 holes on one of the circular faces of the cylinder.
2. Make a cuboid using the cardboard by folding it.
Step 4: Code for the Camera
#include
int potPosition;
int servoPosition;
Servo myservo;
void setup() {
myservo.attach(9);
}
void loop() {
potPosition = analogRead (A0);
servoPosition = map(potPosition, 0,1023,20,160);
myservo.write(servoPosition);
}
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Calculate the flowrate that is needed to produce a thrust, Physics
The thrust developed to propel the jet ski shown in Fig is a result of water pumped through the vehicle and exiting as a high-speed water jet. For the conditions shown in the Fig, what flowrate is needed to produce a 150 N thrust? Assume the inlet and outlet jets of water are free jets and normal to the given inlet and outlet areas, respectively. Neglect viscous effects.
1796_Calculate the Flowrate that is Needed to Produce a Thrust.png
Posted Date: 3/9/2013 1:42:35 AM | Location : United States
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Colouring Culture began in 2016, as the rise of adult colouring books launched into the marketplace. Chaz Fliy, the founder of Colouring Culture, is a designer and wellbeing coach, and realised that there were no inspiring products available that catered for his interests. Chaz began thinking and soon began creating a series of detailed illustration concepts based on a community he knew well - The Sikhs. As the concept illustrations came to life, he began adding to the collection weekly until he had created 20 original and detailed colouring-worthy art pieces. During the process of creating the illustrations, he explored how a mindfulness adult colouring book could help others, those less fortunate and communities struggling with mental health issues. Chaz recalled a visit to Uganda which he embarked on in 2014, where he was fortunate to spend some time teaching at an orphanage school. The memories of the experiences were both joyous and eye-opening, to note that many children in lesser developed countries did not own their own school books, pencils or art supplies. This memory got Chaz thinking and Colouring Culture was formed. This was an initiative to help the mental wellbeing of adults in ethnic and cultured communities. With every one book sold, Colouring Culture provides a free book to an underfunded school or child in communities it supports.
During April 2020, there was an event that would change the course of history as we knew it. Covid-19 created a time of uncertainty, heightening physical illness and the rise of mental health conditions. Chaz took the opportunity to revisit the colouring book project and had time to reflect on an even bigger vision for the project. A book series would be created to help individuals connect to a topic they were interested in, and connect to their own culture. It would also support artists who were struggling to receive work or commissions during and after the global pandemic. Chaz made a decision to make the project a collective one. He contacted talented artists, writers and strategy advisors within the Sikh community to help create a project on a larger scale, and it was launched on Kickstarter as a crowdfunding campaign!
The book was successfully funded by supportive backers and, after several months, we were able to release our first in the series of art therapy colouring-in books, starting with The Sikhs. We hope that you will enjoy the journey.
With EVERY Colouring Book sold,
we will give ONE absolutely FREE
to an underprivileged school.


Definitions for pair production
This page provides all possible meanings and translations of the word pair production
Princeton's WordNet
 1. pair production, pair creation, pair formation(noun)
 the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus
GCIDE
 1. Pair production
 The simultaneous creation of a particle and its antiparticle, such as an electron and positron, from a photon; -- usually due to its interaction with the strong field near a nucleus.
Freebase
 1. Pair production
 Pair production refers to the creation of an elementary particle and its antiparticle, usually when a photon interacts with a nucleus. For example an electron and its antiparticle, the positron, may be created. This is allowed, provided there is enough energy available to create the pair – at least the total rest mass energy of the two particles – and that the situation allows both energy and momentum to be conserved. Other pairs produced could be a muon and anti-muon or a tau and anti-tau. However all other conserved quantum numbers of the produced particles must sum to zero – thus the created particles shall have opposite values of each other. For instance, if one particle has electric charge of +1 the other must have electric charge of −1, or if one particle has strangeness of +1 then another one must have strangeness of −1. The probability of pair production in photon-matter interactions increases with increasing photon energy and also increases with atomic number approximately as Z².
Numerology
 1. Chaldean Numerology
 The numerical value of pair production in Chaldean Numerology is: 5
 2. Pythagorean Numerology
 The numerical value of pair production in Pythagorean Numerology is: 8
Images & Illustrations of pair production
Translations for pair production
From our Multilingual Translation Dictionary
 - Paarerzeugung, PaarbildungGerman
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Soft and hard-magnetic material improvements give rise to ever more complex electromagnetic devices that require fast and accurate modeling in the three-dimensional domain. This paper is the first to present a semianalytical 3-D modeling technique based on Fourier analysis that is able to calculate the fringing fields in 3-D slotted cylindrical structures assuming linear material properties. The magnetic field distribution is obtained by subdividing such structures into concentric regions and by selecting the appropriate boundary conditions. The complete model is introduced and a generic magnetic field formulation in the cylindrical coordinate system is obtained. Furthermore, the boundary conditions are extensively discussed and the numerical implementation is presented. The method is described in a general manner to enable modeling of a wide range of electromagnetic devices. By means of an example, the modeling technique is validated with a finite element analysis.


text: Direct methanol fuel cells (DMFCs) are widely considered to have great potential for portable electric applications, and the power requirements for many of them are only a few watts. Therefore, a low power liquid pump is especially desirable for driving the methanol solution fuel for an active direct methanol fuel. The main objective of this paper is to design and fabricate a magnetic fluid micropump that has characteristics of low operation voltage and current and is suitable for use in DMFCs. Two prototypes were developed and tested. The magnetic fluid micropumps are successfully applied to drive the fuel to a DMFC, and measurements of the cell performance are also conducted.


size
Decal size. Specifies the size of a decal material.
size= *width,height*[ *,thickness*]
width, height
Size of the decal object in scene coordinate units (typically inches) (real, real).
thickness
Thickness of the decal object in scene coordinate units (typically inches) (real).
If neither width or height is 0, the image is scaled to the exact specified dimensions and the aspect ratio of the image is not preserved. Setting either value to 0 preserves the aspect ratio of the image.
If thickness is specified, a drop shadow is rendered if the vignette object defines an appropriate light vector. Set thickness to 0 to disable drop-shadow rendering.
Properties
Material attribute. Only used by decals; ignored by all other materials. res= is ignored if either width or height is greater than 0. Values must not be negative.
Default
catalog::Size if the decal material is based on a catalog entry; otherwise size=0,0,0. The decal size is calculated from res= if wid and hei are not specified or are set to 0. No drop shadow is rendered if thickness is not specified or set to 0.
Example
A MSS for a decal, which is sized based on resolution, rotated by 20 deg clockwise, and has a thickness of 2.5 inches, for an appropriate drop shadow effect:
…&decal&src=myDecal.png&res=34&rotate=20&size=0,0,2.5&…
See also
Scene Coordinates, res=, attribute::Resolution
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