6 edition of Urban Water Management Science Technology and Service Delivery (Nato Science Series. IV. Earth and Environmental Sciences, 25) found in the catalog.
November 30, 2003
Written in English
|Contributions||Roumen Arsov (Editor), J. Marsalek (Editor), W. Ed Watt (Editor), Evzen Zeman (Editor)|
|The Physical Object|
|Number of Pages||348|
Water resource management is the activity of planning, developing, distributing and managing the optimum use of water is a sub-set of water cycle management.. Water is essential for our survival. The field of water resources management will have to continue to adapt to the current and future issues facing the allocation of water. The Water Research Foundation (WRF) is the leading research organization advancing the science of all water to meet the evolving needs of its subscribers and the water sector.
Service needs to be provided for expanding populations, at the same time that corrective measures must be taken for decaying older urban centers, resulting both from neglect and expiring service life. These needs exist within the framewode of other competing and conflicting uses for existing and yet to be developed water sources. Cities use large amounts of costly energy to supply water and treat wastewater, especially in China, one of the world’s largest providers of urban water and sanitation services.
The main strategies to improve service delivery were found to be increasing citizen participation in the affairs of the local authority and partnership with the community in service delivery. The water balance tool aims to model and asses water flows based on multiple and alternative service delivery strategies. The tool enables water professional and decision makers to look on the urban water system in an integrated way and provides the capacity to predict the impacts of interventions throughout the urban water system.
Catastrophe and contention in rural China
Richard and Cosima Wagner
All in a month
Letters addressed to the Committee of Belfast
Poems ascribed to Robert Burns, the Ayrshire bard, not contained in any edition of his works hitherto published.
Official guide and handbook to the County of Norfolk.
Ternary diagrams of the quartz-feldspar content of pegmatites in Colorado
Gamma-Ray Magnetic And Topographic Data For Parts Of The Colorado Front Range, U.S. Geological Survey Open-File Report 00-331, 2001, (CD-ROM)
The closed door
Importance of timber-based employment to the economic base of the Douglas-fir region of Oregon, Washington, and northern California
National Electrical Code 2002 Handbook (National Fire Protection Association//National Electrical Code Handbook)
Know your oscilloscope.
A modest attempt for healing the present animosities in England
The Christmas Bride
Urban Water Management Science Technology and Service Delivery (Nato Science Series: IV:) Softcover reprint of the original 1st ed. Edition by W. Ed Watt (Author), J. Marsalek (Author), Roumen Arsov (Author), Evzen Zeman (Author) & 1 moreCited by: 6. Urban water management issues are particularly important in the countries in transition in Central and Eastern Europe.
During the last decade political, economical and social changes in the countries under transition have influenced almost every element of the public sector, including water services. Get this from a library.
Urban water management: science, technology and service delivery. [R Arsov;]. This book was written to make practical economic and engineering concepts readily available to urban water supply managers, thereby filling a gap in the available literature. It is concerned with decisions made daily, monthly, or annually by managers of urban water supply cturer: Springer.
Get this from a library. Urban Water Management: Science Technology and Service Delivery: Proceedings of the NATO Advanced Research Workshop on Urban Water Management: Science Technology and Service Delivery Borovetz, Bulgaria October [Roumen Arsov; Jiri Marsalek; Watt; Evzen Zeman] -- Urban water management.
This book features expert contributions on key sustainability aspects of urban water management in Chinese agglomerations. Both technical and institutional pathways to sustainable urban water management are developed on the basis.
The nitrate problems in the ground water, the difficulties to recycle potentially limiting resources such as phosphorus from wastewater back to agriculture and the obvious problems we encounter in exporting our technology to the third world are only some examples which motivate us to investigate sustainable technology in urban water management.
Urban Water Distribution Networks: Assessing Systems Vulnerabilities and Risks provides a methodology for a system-wide assessment of water distribution networks (WDN) based on component analysis, network topology and, most importantly, the effects of a network's past performance on its seismic and/or non-seismic reliability.
Water distribution networks. Integrated urban water management in the future will reframe a city's relationships to water and other resources.
It will require improving environmental monitoring and information by expanding the scope and factual basis of comprehensive urban water management models. Water Supply is pleased to announce the call for papers for our next Special Issue on Integrated Management of Rivers and Reservoirs.
Call for Papers: Integrated Water Management for Enhanced Water Quality and Reuse to Create a Sustainable Future. Furlong, K. () "Good water governance without good urban governance. Regulation, service delivery models, and local government" Environment and Planning A 44, /a Furlong, K.
() "Small technologies, Big change: rethinking infrastructure through STS & geography" Progress in Human Geography 35 (4), National Urban Water Governance Program, School of Geography and Environmental Science, Monash University, ClaytonVictoria, Australia E-mail: @; [email protected] Sustainable urban water management (SUWM) requires an integrated, adaptive, coordinated and participatory.
Urban Water Management Plans (UWMPs) are prepared by urban water suppliers every 5 years. These plans support the suppliers’ long-term resource planning to ensure that adequate water supplies are available to meet existing and future water needs.
Urban Water Management Plans (UWMPs) are prepared by California's urban water suppliers to support their long-term resource planning, and ensure adequate water supplies are available to meet existing and future water demands.
Every urban water supplier that either provides over 3, acre-feet of water annually, or serves more than 3, urban. Urban Water Management involves the fields of water supply, urban drainage, wastewater treatment and sludge handling.
On the basis of the Age principles and guidelines for sustainable urban water management are discussed. Sustainable technology leads to acceptable gradients in state variables.
Written and designed especially for intermediate and advanced courses/modules in water resources in civil and environmental engineering, and in urban planning, the book can be used as a textbook for civil engineering, urban and regional planning, geography, environmental science, and in courses dealing with urban water s: 1.
Smart Water Management (SWM) uses Information and Communication Technology (ICT) and real-time data and responses as an integral part of the solution for water management challenges. SWM is becoming an area of increasing interest as governments from around the world integrate smart principles into their urban, regional and national strategies.
The urban water management system is considered herein as two integrated major entities; water supply management and water excess management. The first six chapters provide an overview of the various aspects of IUWM in arid and semi-arid regions, with emphasis on water supply technologies, such as artificial recharge, water transfers, Format: Hardcover.
The Australian urban water industry provides over 20 million customers with water and wastewater services, and plays a significant role in environmental stewardship and contribution to urban amenity.
In some states and cities the same water service providers also provide stormwater, drainage and flood management services. Water budget for urban water systems (McPherson ).
Sustainability has become popular as a general goal of future societies in general and environmental and economic systems in particular. A recent issue of Water Science and Technology featured numerous articles by European authors on the theme of “Sustainable Sanitation” (Henze et al.J.
Briscoe, in Treatise on Water Science, Issue One: The Radically Different Markets in which Irrigation and Urban Water Operate. The first, fundamental distinction is between the markets in which urban water supply and irrigation operate. In the case of urban water supply, the product can largely be considered as a local, nontradable good.Tuition & fellowships.
If you wish to receive more information about the fees and living costs of a specific Joint Programme, please send an e-mail to the fellowship officer, Ms Ineke Melis: @ The following fellowships are recommended for prospective students who wish to study Urban Water Engineering and Management.
Orange Knowledge Programme.


The best ways to clean and maintain your roof
Are you ready to replace the roof on your house? If not, then you must consider the best ways of maintaining and cleaning it. Keeping the roof clean and free of all clutter is best or your pockets. A clean and well-maintained roof won’t develop the small problems that require hiring a roofing technician to repair. To avoid the high cost of replacing a damaged roof, you should identify several ways of making the roof last as long as necessary.
So, what should you do?
First, clean the gutters properly and regularly. Overflowing gutters are a worrying site. If you leave the gutters dirty and overflowing, expect to find them causing water to wick right into the roof sheathing. The result of this would be rotting sheathing. The roof rafters are capable of rotting and growing weaker because of the limitless exposure to water. Fixing the rotting sheathing and rafters could cost you thousands of dollars.
If towering trees surround your house, it would be a miracle in case the roof isn’t full of leaves. Check the roof valleys as well as the areas around the chimneys, as they are more susceptible to the falling leaves. Failure to remove the leaves regularly while cleaning this part of the building traps moisture on the roof. Poignantly, the trapped moisture will cause the roof to begin decomposing. The roof would then transform into a fertile ground for weeds.
Check the roof for black algae or moss. Black algae aren’t bad for the roof. Black algae are capable of creating havoc in the health of every person who resides in your home. Moss, on the other hand, is notorious for trapping water in the roof. If the buildup of moss has reached dangerous levels, your best option would be to focus on killing it first. After eliminating the moss, install zinc strips on the roof to prevent a recurrence.
Trimming overhanging branches
Never ignore or underrate the role that overhanging branches can play damaging the roof. When cleaning the roof, focus on the overhanging branches as well. The surrounding trees are not entirely bad, especially when you consider the cover and protection that they provide to the roof against the powerful UV rays. However, this doesn’t make them must-haves. Trim the branches so that they don’t fall on the tree, which would lead to higher repair or replacement costs.
Preventing Ice Dams
Ice dams form right at the roof edges. The dams are notorious for making it hard for melting snow to drain off from the roof. As water continues backing up on the roof, it finds its way into the home. The leaks can then damage ceilings, walls, insulation and other parts of the home. If you don’t fix the ice dams, be ready to incur crazy expenses fixing the problems that accrue from this development.
Regular inspection is a top maintenance tip that you should never ignore. You can’t know if the roof has problems without regular inspection. Inspecting the roof after a recent hailstorm is highly recommended too. Heavy winds are notorious for damaging the roof. Therefore, inspect this part of your house for damages when the neighborhood has suffered the brunt of heavy winds in recent times.
As shown in this article, you can clean and maintain the roof properly, thus making it last longer, continue serving you well and reduce your roof repair and replacement expenses. Keeping the roof clean isn’t a tough job. Cleaning and maintaining the roof properly doesn’t require technical skills. Wear the right protective and safety gear if you choose to clean the roof yourself. If you lack the right equipment, hire a roofing contractor to clean and maintain the roof.


What are the main challenges facing the construction industry in 2018?
The public increasingly expects the construction industry to meet global standards in sustainability. As an industry with a relatively large environmental footprint, the construction industry needs to be innovative and creative in generating solutions that minimise waste and reliance on fossil energy sources.
The industry also faces challenges in becoming more gender-equal. While there is an increasing number of women entering the industry, there is still a long way to go before women are represented in the industry in equal numbers, particularly in senior roles. We also understand there is a strong desire and need to increase automation and decrease the reliance on manual labour.
What excites you most about the UAE construction industry in 2018?
There are many new, major construction projects planned for the region in 2018. I am looking forward to seeing how the industry uses the latest technology and techniques to overcome the hurdles it faces in creating buildings that can withstand changing environmental conditions and the expectations of the public. I am excited about seeing how research being conducted at AUS that has relevance to the construction industry is utilised by the private sector, and how new innovations will make the construction industry more efficient.
What topics do you expect will be discussed at the CW: Leaders in Construction Summit UAE 2018?
We are hosting a roundtable discussion at the summit, where we hope to have a rich discussion with industry leaders about innovation. We want to talk about innovation advances that are happening now, and the positive impact they are having. We also want to discuss innovation gaps in the industry, and how we, as a university can help to fill some of these holes.
Why is it important for AUS, and for you, to support and attend the CW: Leaders in Construction Summit UAE 2018?
AUS’s College of Engineering is one of the region’s leading engineering schools. To maintain the quality of the degrees we offer, it is important that we have open and meaningful dialogue with key people and organisations in the engineering world and that, of course, includes the construction industry. This event is an excellent way for us to strengthen relationships, and hear from the industry about its needs and expectations. This allows us to offer engineering programs that are relevant and in-sync with industry challenges.
What are the latest developments that your company has unveiled this year, and what’s lined up for the future?
We are continually updating and adapting our offerings so that they meet the expectations of both students and industry. The university’s first doctoral programme – the PhD in Engineering Systems Management – was recently launched, with students starting this fall. This programme includes a track in sustainable construction. We are also in the early planning and design stages for a master’s degree programme in construction management.


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Jan 25, 2016 · Tubular steel can be made of stainless, galvanized, carbon, or mild steel, depending on the client's needs. Overall, tubular steel is a great product, and it fits a wide variety of applications. Here are some of the most common ones. Industrial Applications & Machinery. Steel tubing is used widely in industrial applications.
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New York, NY Factoid
No longer the tallest building in the world, the Empire State Building is still one of the best loved. Opened in 1931, the skyscraper grew at a rate of 4.5 stories per week and still holds the distinction of being the fastest rising skyscraper ever built. Annually, more than 3.8 million people visit the observation decks on the 86th and 102nd floors. But here's a hint, go to the 86th floor. On a clear day, you can see up to 80 miles.


The Notices below reflect upcoming projects that may be advertised by the City in the near future, based on the industry’s interest. Consultants and contractors are encouraged to view these Notices and provide feedback as to their interest in pursuing these business opportunities. Please view Notice/s for more details.
Fire Facilities Resiliency Project - Fire Station No. 10 - Global Notice for RFQ's/RFP's
|April 21, 2020|
|RFQ||I-395 Bay walk Pedestrian & Bikeway Bridge Notice 04032020 - Global Notice for RFQ's/RFP's||April 7, 2020|


Rebar Tie Wire Twister
Material: Carbon Steel with Zinc Coating. Rubber Handle
Size: 10.5 in
Item Weight: 181 g
Rebar Tie Wire Twister : A Must-Have Tool for Construction Professionals
Rebar tie wire twisters are a must-have tool for construction professionals. They make it quick and easy to secure rebar ties, which are used to hold rebar in place during construction. Rebar tie wire twisters can save you time and effort, and they can help you improve your work quality.
There are many different rebar tie wire twisters on the market, so it’s important to choose one that is right for you. When choosing a rebar tie wire twister, consider the following factors:
- Material: Rebar tie wire twisters are typically made of steel or aluminum. Steel twisters are more durable, but they can be heavier and more expensive. Aluminum twisters are lighter and less expensive, but they may not be as durable.
- Size: Rebar tie wire twisters come in a variety of sizes. Choose a twister that is the right size for the rebar ties you will be using.
- Ergonomics: Rebar tie wire twisters can be uncomfortable to use if they are not ergonomically designed. Choose a twister with a comfortable grip that will reduce fatigue.
- Price: Rebar tie wire twisters range in price from a few dollars to over $100. Choose a twister that fits your budget and your needs.
Once you have chosen a rebar tie wire twister, it is important to use it properly. To use a rebar tie wire twister, follow these steps:
- Insert the rebar tie into the twister.
- Close the twister around the rebar tie.
- Twist the handle to tighten the rebar tie.
- Once the rebar tie is tight, open the twister and remove the rebar tie.
Rebar tie wire twisters are a safe and easy way to secure rebar ties. They can save you time and effort, and they can help you improve your work quality. If you are a construction professional, a rod tie wire twister is a must-have tool.
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The new PAMBuoy™ acoustic monitoring system officially launched in September by SMRU Ltd, the spin out from the Sea Mammal Research Unit at University of St Andrews, is being used to protect salmon in the River Forth estuary during the construction of the new Forth Road Bridge.
PAMBuoy™ systems are installed from the legs of the existing road bridge, with hydrophones in the water, monitoring the noise generated from construction activities. The measurements are sent back to FCBC (Forth Crossing Bridge Constructors) the construction consortium client, and SMRU Ltd using 3G smartphone technology ensuring real-time, up-to-date information is available for operational decision making. In addition PAMBuoy™ is delivering a remote monitoring unit which the FCBC team are using to get real-time data on their activities whilst deployed from a drifting vessel.
The Scotsman (28 Nov 2012)
University of St Andrews Website


Steel structures use a number of steels and metals to construct sturdy structures with an range of advantages over structures made from wood, vinyl and asphalt. The framing, walls, siding and roofs are metallic so that they are very strong and resilient. They do not absorb water inside a major rain storm or perhaps a ton so there’s no rotting or mildew around the steel. They do not catch fire and therefore are flexible within an earthquake so when battered by hurricane powered winds. They’re frequently less costly to construct than masonry or wood structures since they’re prefabricated and you can easily join the weather together.
Two elements which may be utilized in steel structures are galvanized and stainless. You will find a minimum of 60 grades of stainless with respect to the alloy elements in the microstructure inside the three primary groups of stainless Martenistic, Ferritic, and Austenitic. When thinking about roll developing design you need to know which category you are dealing with. Stainless can be used due to its anti-corrosive qualities. It’s been developed not just to resist numerous corrosives but additionally to make sure our workplaces. It is usually produced by using chromium. The quantity of chromium used is all about ten . 5 percent. A chromium oxide film is created around the steel helping it become corrosion resistant.
Another steel sent through roll developing presses for structures is galvanized steel. Galvanized steel is definitely an affordable and efficient steel utilized in a multitude of applications. It’s utilized in steel frame houses, cars, roofing also it can be reused and recycled multiple occasions. Galvanized steel can also be corrosive resistant. It is going via a chemical process in which the steel will get coated with layers of zinc. A vital factor with zinc is the fact that rust will not attack zinc. Why is the galvanized steel work would be that the chemical reaction within the alloying process permanently bonds the zinc towards the steel, that is what galvanizing means. It’s an electrochemical process named after Luigi Galvani, an Italian researcher.
You’ll find galvanized steel getting used in a multitude of uses, such as Purlin roll developing. It will be on roofs, on siding, drainpipes and much more applications. It’s affordable plus much more durable than other materials employed for building. It may be colored and comes in a number of various appearances for the housing material needs.
When you’re thinking about your roll developing design the experts from Samco Machinery might help pick which stainless or galvanized steel you might want to use. The roll developing presses are designed for everything and you may even get Purlin roll developing if needed.
You would need the services of authentic and reliable company for your API 5l X56 pipe suppliers It has been deemed of great importance that you should look forward to hiring the services of supplier that would cater to your needs in the best manner possible.


Public transportation is essential to every person’s life. It helps connect people to their jobs, families, and communities. According to the National Transit Database, public transportation helps provide more than 10 million jobs across the country. In addition, public transit helps reduce traffic congestion and pollution, making our roads and air cleaner.
In many ways, a country’s transportation system reflects its economy. A well-developed transportation infrastructure indicates that a country is prosperous and has a strong economy. Conversely, a poorly developed transportation system can mean a struggling economy.
Many factors contribute to the development of a country’s transportation system. Here are a few of them.
Government Priority for People
Public transportation systems consist of various modes, including buses, trains, subways, and light rail. All of these modes require significant investment to build and maintain. A government prioritizing public transportation recognizes the importance of investing in its people. Private corporations might chip into building the infrastructures, establishments, or resources, but it remains a national government’s program to ensure its citizens get everything they need. As a result, the government’s priorities will play a vital role in a country’s successful transportation system.
In Singapore, the government has been investing in public transportation for years, and it has become one of the most efficient systems in the world. The Singapore Mass Rapid Transit (MRT) is an excellent example. The SMRT is a clean, safe, and affordable way for Singaporeans to get around the city-state. In addition, the SMRT has helped reduce traffic congestion and pollution. Ngien Hoon Ping, SMRT’s former managing director, said, “The MRT is not just a train service. It is a way of life.”
In contrast, many developing countries do not prioritize public transportation. These countries often have unreliable, dangerous, expensive, poorly designed transportation systems. It can be a barrier to economic development, making it difficult for people to get to work, school, or essential access services.
Investment in Infrastructure
A well-developed transportation system requires a significant investment in infrastructure. It includes building and maintaining roads, bridges, tunnels, railways, and airports. It also includes investing in public vehicles like buses, trains, and subways.
The United States is a country with well-developed transportation infrastructure. The U.S. Federal Highway Administration reports that the government has more than 4 million miles on its highways. In addition, the United States has an extensive network of railways and airports. The country’s investment in transportation infrastructure has contributed to its economic success.
China is another example of a country with a well-developed transportation infrastructure. The Chinese government has invested significantly in railways, highways, and airports. This investment has helped China’s economy increase over the past few decades, helping the country thrive.
One example of a country with a lack of investment in transportation infrastructure is Venezuela. The Venezuelan government has not invested significantly in the country’s roads, railways, or airports. As a result, the country’s transportation system is inefficient and unreliable. This has been a barrier to economic development in Venezuela.
Traffic Congestion Solutions
One of the biggest challenges of transportation systems is managing traffic congestion. Traffic congestion can lead to several problems, including long travel times, higher fuel consumption, and increased pollution.
Governments and transportation agencies have implemented various solutions to the problem of traffic congestion. These solutions include building more roads and expanding public transportation systems.
Building more roads is often seen as a solution to traffic congestion. However, this solution is not always practical. In many cases, building more roads leads to more traffic and more congestion. Expanding public transportation systems is a more effective solution to traffic congestion. This solution helps reduce the number of cars on the road and can be less expensive than building new roads.
Japan is a country that has implemented this solution. The Japanese government has invested in an extensive network of railways and subways. This investment has helped reduce traffic congestion in the country. The Philippines, meanwhile, is known for its “Jeepney” system, a form of public transportation that uses jeeps modified to seat more passengers.
The Bottom Line
A well-developed transportation system is essential for a country’s economic development. A sound transport system can help reduce traffic congestion and pollution, and make it easier for people to get to work, school, or essential access services. A country must invest in transportation infrastructure to have a well-developed transport system.


Unsurprisingly, hydropower—the generation of electricity from water flowing in a river—preceded pumped hydroelectric storage, which is the use of water to store electricity generated from some other source than the river itself. The first commercial hydropower plant was built at Niagara Falls in 18791. Pumped storage began in 1907 near Schaffhausen, Switzerland2, so it’s a little younger, but still more than a century old.
The Golden Age of Hydropower
Skipping ahead to 1933, the first concrete was poured for the still-iconic Hoover Dam3. It’s all but impossible to imagine a project of this scale being built in the United States today. Power was first generated in 1936, and maximum power output gradually increased all the way until 1993, reaching over 2 gigawatts (2 billion watts).
Like all large hydroelectric generation (not storage) facilities, Hoover Dam was built by damming a river (the Colorado), in a location where the dam could trap a large amount of water with reasonable hydraulic head (elevation difference between the reservoir and the outlet). This takes a tremendous amount of concrete, because the bottom of the dam starts at the elevation of the original riverbed, so there is a great deal of hydrostatic pressure at the wet side of the base of the dam. That water at the bottom isn’t actually contributing—being at nearly the elevation of the outlet, if the lake ever drained to that level, it wouldn’t generate any power—yet it must be resisted.
This diagram shows that the maximum pool (surface of Lake Mead when full) is at 1,229 feet (375m) above sea level, and the base of the dam is at about 500 feet (152m), a difference of 729 feet (222m). This would correspond to a pressure of about 300 pounds per square inch (20 atm) at the base of the dam4. The immense triangular wedge of concrete in the illustration is necessary to hold back all that force.
It’s instructive that Hoover Dam’s power output has been dwindling for years, due to lower river flows (persistent droughts to which climate change has contributed) and increased competition for water in the Colorado River basin. In 2014, the dam was reduced to operating as a peaking plant, only operating during times of highest demand for power5.
A hydropower dam is inherently an energy storage device, but it doesn’t store electricity. It stores the gravitational potential energy inherent in the water that falls into its watershed as precipitation and flows into its reservoir from higher elevations upstream. (There are hydroelectric generators, called “run-of-river” facilities, that have no reservoir and don’t store energy; these are typically small, and lack the significant advantage of steady power output for as long as there’s water stored in the reservoir6.)
To turn a hydroelectric dam into a facility that can store electricity generated elsewhere, you need to add a second reservoir downstream from the first to capture the stream flow, instead of letting it escape. Then you install a pump at the lower reservoir, powered by electricity from some other facility. When that facility has surplus power, it can pump water back up from the lower to the upper reservoir, against the force of gravity. The energy this consumes can later be recovered when that water flows through the generators at the upper dam.
While this is an interesting hybrid of generation and storage, the age of damming large rivers is past, for reasons like wholesale destruction of riverine ecosystems and the carbon footprint of concrete dams.
Now that we’re talking about storing outside energy and not just generating it from the river’s own flow, let’s note some basic facts about pumped water storage. Assuming we are using water and not alternatives like molten lead, the density of our storage medium doesn’t change. So the amount of energy we store is (linearly) proportional to two quantities: how much water we move, and the elevation difference. Double the amount of water that can cycle between elevations, and you double the stored energy. Double the elevation difference, and you also double the stored energy.
Closed-loop Pumped Storage
A closed-loop system is not fed by a watershed; it uses the same water over and over (except for makeup water that is added, or allowed to flow in, to make up for water lost to evaporation or leakage into the soil). Some closed-loop systems use natural lakes for one or both reservoirs, sometimes impounding them to increase the volume of water stored. Though in particular cases this might be more acceptable than damming a river, this strategy is still subject to complaints about ecological damage, and new sites are scarce. So the new closed-loop systems that are being built now are more likely to build both reservoirs from scratch, in locations where this is politically feasible.
A pure example of this type of system, which is being built now, is the Gordon Butte Pumped Storage Hydro Project in Montana. Here’s a cross section:
And here’s a bird’s-eye view:
For a system like this, we’d look for a site that has two reasonably flat areas, at different elevations, not too far apart horizontally. Then we’ll create a couple of artificial lakes, by some combination of digging, damming, and berming, as the terrain requires. We run a pipe with a turbine in it between the two ponds. Water is sent from the lower to the upper pond when we have surplus power to pump it, and goes down and spins the turbine when we want the power back later. (Though some turbine types, such as Francis turbines, can run backwards as pumps with good efficiency, there are sometimes reasons not to do this, but to keep the turbine and pump separate.) Because the amount of water is fixed, this system can store a finite amount of energy, like a rechargeable battery. It can only release energy when there’s water in the upper reservoir, and it can only store energy when there’s water in the lower reservoir.
Gordon Butte is located in a part of Montana that’s far from populated areas, in what most people would consider “empty land,” which generally means that it’s hard to extract any economic value from it. Aside from this advantage, the layout has other benefits. The flat terrain at top and bottom allow the water to be relatively shallow in each reservoir, which means we don’t need an enormously thick concrete dam—the shallowness of the water means hydrostatic pressures stay small, except in the penstock (the tube connecting the upper reservoir to the turbine, which is located inside the powerhouse near the lower reservoir). 300 psi of pressure was a big challenge at the base of Hoover Dam, due to the enormous area experiencing that pressure, but the penstock’s cylindrical shape and small size compared to a dam mean it can be strong enough to handle such pressures without costing too much. Meanwhile, the actual dams at Gordon Butte face far lower pressures, so there’s no need for monumental triangular wedges of concrete to hold the water back.
Gordon Butte is in an area that gets enough precipitation to fill the reservoirs naturally once they’re finished (we need enough water to half-fill each reservoir, since during operation, sometimes all of the water will be in the upper reservoir [the fully-charged state], and at other times it will all be in the lower one [fully discharged]). There is also enough inflow to make up for evaporation and seepage losses.
Gordon Butte, and other new systems like it, prove that I was oversimplifying when I described pumped hydro as a “built-out technology.” There’s every reason to believe this project will be a great success. The design is perfectly suited to its topography and climate. The price tag ($1 billion) is a little on the high side for what I calculate is 4.3 gigawatt-hours of storage capacity, but that price is only an estimate, and I’m not privy to the calculations that led to it.
Some of that cost may be due to another fairly cutting-edge aspect of the Gordon Butte design that I mentioned very briefly above. It’s a “ternary” system; that means that instead of having a single turbine that reverses itself to become a pump when surplus electricity is being stored, it has a dedicated turbine as well as a dedicated pump, both connected to a single electrical unit which is both a generator and a motor as required. Valves are used to change the routing of water through this equipment.
This mechanical/hydraulic arrangement has been around for some time, but it’s getting attention now because it offers the possibility of switching between storage mode and generating mode very rapidly (in a few minutes). This ability makes the pumped storage much more valuable in terms of overall grid operation. It also makes the storage more competitive with batteries (which, being purely electrochemical, tend to have very fast switching times).
There’s a lot more to say about how this ternary operation works, what it entails, and how it might interact with the particular features of Encapsulated Pumped Storage. That discussion will come later.
- This source gives a figure of 45,000 pounds per square foot, which is 312.5 psi, so our numbers check out.
- Interestingly, in 2018, the Los Angeles Department of Water and Power (LADWP) proposed a $3 billion pumped hydro storage project that would use store wind and solar power, using Lake Mead as the upper reservoir. I will return to this later.


Fabricators and Erectors
Did you know that steel is one of the most recycled materials on the planet? Building with steel not only offers strength, durability and lasting integrity, it also has a high recycle value. A large portion of steel committed to any project is from recycled sources. Electing to use steel on your construction project couples a valuable resource with a truly planet friendly solution
Our team of designers and In-house Engineering team utilize the latest technology and Building modeling technology to ensure your projects starts on time and on Budget. We specialize in SolidWorks Engineering Software as well as the latest CAD design software with full 3-D capabilities. We make sure our fit ups work before we start building
A division of Arizona Civil Constructors, Inc.


Difference between self-falling mixer and forced mixer
As one of the equipment of the low price hzs75 stationary concrete batching plant, the concrete mixer is extremely versatile. With the advancement of science and technology, the production technology of concrete mixers has developed rapidly. There are many types of concrete mixers according to different concrete production needs and manufacturing technologies.
Among them, self-falling mixer and forced mixer are two of them. As two different types of mixers, there are the following differences:
The most commonly used mixers today are forced mixers. China JS500 concrete mixer is divided into a single horizontal shaft forced mixer and a double horizontal shaft forced mixer. The stirring amount of the forced type mixer is larger than that of the self-falling type mixer. The self-falling mixer is mainly composed of a frame, a support wheel, a mixing drum, a curved beam, a handle, and a motor.
The stirring cylinder is composed of a cone, a cylinder and a U-shaped body. The difference between self-falling mixer and forced mixer: The inner wall of the mixing bowl of the self-falling mixer has no blades. The materials are mixed by rolling the mixer drum. Arc-shaped blades are welded on the inner wall of the mixer drum of the forced mixer. When the mixer drum rotates around the horizontal axis, the blade continuously raises the material to a certain height, then falls freely and blends with each other.
Self-dropping mixer is suitable for mixing plastic concrete and low-flow concrete. The mixing effect of the discount JS750 concrete mixer is stronger than that of the self-dropping mixer. It is suitable to mix dry hard concrete and light aggregate concrete, as well as liquid concrete. The self-falling mixer relies on the rotation of the mixing tank to raise the internal concrete to the upper part of the tank, and then falls down, so that the circulation is continuously stirred. The forced mixer is a stationary tank, which is agitated and mixed inside with a stirring claw. Its effect and efficiency are better than the self-dropping type.
The mixer drum of the self-falling mixer is placed vertically. With the rotation of the mixing drum, the concrete mixture is free-falling in the mixing drum to achieve the purpose of mixing. The barrel and blade of the self-falling mixer have less wear and tear, and are easy to clean, but have large power consumption and low efficiency.
The cheap JS2000 concrete mixer has the advantages of good mixing quality, fast mixing speed, high production efficiency, simple and convenient operation, and safety. However, the machine parts are severely worn, and generally need to be lined with high-strength alloy steel or other wear-resistant materials, which are mostly used in centralized mixing stations. The self-falling mixer mainly uses the self-weight of the materials in the mixing drum to save energy. However, due to the influence of material adhesion and friction, the mixing process has a large abrasion on the concrete aggregate, which has an adverse effect on the quality of the concrete. Therefore, the self-falling type is gradually being replaced by a forced mixer.
Different types have different impacts on production. Users choose different types of equipment according to their production needs. This increases the scope of production for users. At the same time, two different types of concrete mixing station equipment Type also has some corresponding targeted production directions.


Located in the business district of downtown Calgary, Alberta, Addoz Engineering Inc. (AEI) is an engineering consulting firm specialized in providing traffic and transportation engineering and related planning and design services to both public and private sectors in Alberta and Western Canada. The founding principal of AEI has 25 years of professional career experience.
Dr. Alsaidi has more than twenty 25 years of professional experience in Traffic and Transportation Engineering through his private and public sector careers both in the US and Canada. P.Eng. registered in the Provinces of Alberta and British Columbia


Granite is very strong and durable stone. It takes good polish, It is composed chiefly of quartz and feldspar mixed with particles of mica. The colour depends upon the predominating constituent of feldspar. It is popularly used as architectural stone for interior and exterior walls, floors and monumental stone etc. The colours & texture are mentioned in below paragraphs.
DescriptionGranite rocks are igneous rocks, which were formed by slowly cooling pockets of magma that were trapped beneath the earth's surface. Granite is used for long lasting monuments and for trim and decoration on buildings. Igneous rocks are called fire rocks and are formed either underground or aboveground. Underground, they are formed when the melted rock, called magma, deep within the earth becomes trapped in small pockets. As these pockets of magma cool slowly underground, the magma becomes igneous rocks. Igneous rocks are also formed when volcanoes erupt, causing the magma to rise above the earth's surface. When magma appears above the earth, it is called lava. Igneous rocks are formed as the lava cools above ground. Formats/Sizes Available Blocks, Slabs, Tiles. Finishes AvailablePolished, Honed, Sawn (Rough), Sand Blasted, Bush Hammered, Flamed. Recommended Applications Wall-cladding, roofing, flooring and all other interior & exterior applications depending upon the imagination of an architect.


This week urban design activist organization, Smart Growth America, through its National Complete Streets Coalition, published Dangerous by Design 2014, a pedestrian safety report. Dangerous by Design 2014 identifies four Florida metropolitan areas, including Miami-Fort Lauderdale, as the four most dangerous metropolitan areas for pedestrians nationwide. Smart Growth America advocates for smart growth solutions as many American cities are undergoing urban revitalization. As you drive through south Florida’s urban centers, you may have noticed signs in the middle of the road warning drivers to yield to pedestrians. These and other safety precautions help lessen the number of pedestrian accidents. A pedestrian accident usually results in catastrophic personal injury or wrongful death. Drivers are required by Florida law to share the road with pedestrians but they often do not. Please be extra careful when driving by pedestrians to help prevent a pedestrian accident and the resulting personal injury.


What is RCC Building in Construction?
RCC buildings have become the most common trend in the building industry in India because of its durability, strength, low cost and many other attractive features. A combination of concrete and steel reinforcement that are cast into one piece and that work as a monolithic element can be referred as Reinforced Concrete.
Types of Reinforcement Used In RCC Concrete
There is various type of steel reinforcement available in the market for construction reinforcement bars, prestressing wires and strands, rolled steel sections and light-gauge steel sections are the major steel forms that are generally used in Building Construction.
Properties of RCC
- Amrapali CHS Ltd. Shop No.3 , Pirojsha Nagar,Next to Railway Crossing, Vikroli (E), Mumbai-400 079
- +91-9820332265 +91-9869064617


A parking lot striping project has many steps to complete before the parking area is ready for visitors. Detailed engineering and layouts are done on the lot, especially for new construction. Once the layout is ready, the painted stripes and markings are applied. Finally, the striping company adds details like signs, specialized markings, and sign posts. The result is a parking lot that moves traffic smoothly in and out of the area while providing safe parking for visitor vehicles.
Many businesses wonder about the expense involved in a parking lot striping project. Just as in the planning and execution of project itself, many aspects go into the costs associated with these line striping and marking projects. In this guide, average costs of parking lot striping and marking will be reviewed, based on national surveys of professional lot striping companies.
Factors that Determine Average Pricing of Parking Lot Striping
The first aspect in average costs of parking lot striping projects is known as the “mobilization fee”. Most professional striping companies have minimum fees associated with undertaking a project; this fee ranges from $300 to $500, based on national averages. The mobilization fee is designed to cover overhead expenses such as fuel, equipment costs, labor, and materials. Obviously, the smaller the project, the lower the average mobilization fee.
This flat expense is also designed to cover any corrective actions that need to be addressed before the project is considered complete. Professional line striping companies work to ensure that the job meets all codes and guidelines, but sometimes a pavement marking isn’t quite perfect. For example, urgent needs, such as a code citation for a missing or incorrect marking that needs to be redone, are often covered under the mobilization fee.
Breaking Down Individual Striping and Marking Average Costs
Individual fees for elements of parking lot striping and marking vary, depending on region, complexity, and specialized requirements based on local codes or engineering specifications. In general, though, these individual fees are represented well by national averages. Some of the costs include:
- Single-line parking spaces average $4 to $5 per space
- Directional arrows average $10-20
- 4” lines, such as for loading zones or emergency access, average about $.030 per linear foot
- Stenciling per letter (24” high letters) averages $2 to $4
- Stenciling for smaller letters (12” high) averages $1.50 to $3.50 per letter
- Crosswalks average $35-75, depending on color and width
- Handicap spaces, including blue box markings and stenciled symbols average $25-35 per space
Cost averages are also influenced by the type of project. For new construction, lines and markings may need additional coats of paint, driving the costs per element higher. Restriping projects, such as a refresh of an older parking lot, tend to range on the lower side of the average.
Regardless of project type or size, a professional parking lot striping company can guide customers through the process. Parking lot striping is not inexpensive, but for a truly professional job, the expense is worth it. A well-marked parking lot is safer for site visitors, and quality line striping and marking helps to ensure smooth traffic flow into and out of the lot.


20 Jun 2019
6:45 pm – 8:15 pm
Welcome drinks: 18:45-19:30
Harbinder Singh Birdi, partner at Hawkins\Brown Architects and principal architect for the design of Tottenham Court Road station, will describe the design and construction of what is recognised as being one of the most complex infrastructure projects currently being delivered in central London.
Harbinder will also be describing how Hawkins\Brown both restored and integrated within the station the works of five conceptual artists: Eduardo Paolozzi, Mark Wallinger, Daniel Buren, Richard Wright and Douglas Gordon. The station is known to have the greatest number of permanent in-situ art works in any underground metro station in the world.


The state provides to counties rather large sums of money in the form of “county-aid funds” primarily from the state gasoline tax. County-aid highway funds may be used in the building, repairing and improvement of county roads and bridges or for the funding of mass transit systems (not to exceed 22.2% of total). T.C.A. § 54-4-103. There are further restrictions on the use of these funds detailed in the gasoline tax distribution statute, T.C.A. § 67-3-901. If a county is to receive its full allocation of county-aid funds under the basic formula: 50% equally to all counties, 25% according to population, and 25% according to area, the county must appropriate for road purposes from local revenue sources an amount equal or greater than the average of the preceding 5 years from local sources. The county highway officials must certify these items to the DOT each year. It should be noted here that some counties have not appropriated local revenue in the past 5 years; if so, the state will not diminish the county-aid funds so long as this fact is certified by the county officials. Also, the portion of the gasoline tax proceeds from 3¢ of the total gasoline tax (effective since 1985) which become county-aid funds must be used for the purposes of resurfacing and upgrading county roads, including paving of gravel roads. T.C.A. § 67-3-901.


The Axel’One PMI site facilitates the scale-up for the development of advanced materials, bio-materials and materials on flexible supports. By characterizing, modeling and transforming these materials, Axel’One PMI plays an active role in the innovations of the future for the transport (aeronautics, automotive), construction (infrastructure) and health industries.
DESIGN AND SCALE-UP OF MATERIALS
FOND OUT MORE ABOUT THE COLLABORATIVE PROJECTS
ON AXEL’ONE PMI


- Satellite Imagery
- IMaRS Team
- Contact IMaRS
Transportation planning enhances tourist and workforce mobility, improves air quality, reduces traffic con-gestion and fosters economic development in specific areas. These leading experts discuss award-winning program that incorporated mobility fees, incentives, smart growth planning for large county, campaign and stakeholder engagement strategies for new transit starts, and transportation infrastructure vulnerability assessments in New Jersey and Florida. Click on a specific presentation or click here to see the entire Transportation Planning Presentation album.
May 1, 9:30 to 10:30 Linking Transportation Financing to Economic Development and Smart Growth
Pasco County Commissioner Jack Mariano, Chief Assistant County Attorney David A. Goldstein, and Growth Management Administrator Richard Gerhing. Pasco County’s new program utilizes innovative strategies to help fund multiple modes of travel and encourage urban development, economic development, and transit oriented and traditional neighborhood development. The presentation focuses on the planning, financial and legal strategies used to develop this program.
Steve Tindale, CEO of Tindale Oliver & Associates and Nick Casalanguida, Growth Management Administrator for Collier County, Florida discuss how land use, mobility, economic policies and incentives can be used to enhance community health and the environment, reduce public infrastructure costs, and stimulate the tax base for local governments. Several Florida case studies will be examined, including recommendations being considered in Collier County as part of its Master Mobility Plan.
May 1, 11:00 to 12:30 New Transit Funding and Campaign Strategies for Municipalities
Moderator: David Singer, Holland & Knight, Panelists Alan Wulkan, Managing Partner, InfraConsult LLC and Jeffrey Boothe, Partner, Holland & Knight Washington, D.C., discuss strategies and best practices drawn from successful new transit start ups and define issues impacting planning, financing and effective community engagement.
Alan Wulkan, InfraConsult LLC, reviews principles, approaches for creating effective strategies and campaigns to gain the support of business stakeholders and community leaders and achieve successful transit referendums.
TRANSPORTATION INFRASTRUCTURE AND CLIMATE
Chris Lynn, Manager, Office of Environmental Planning, Delaware Valley Regional Planning Commission, Josh DeFlorio AICP, LEED AP, Cambridge Systematics, and Russel Jones,Stratus Consulting
Dr. Len Berry, Director, Florida Atlantic University Center for Environmental Solutions and Nicole Hammer, FAU CES present research from the new Florida Department of Transportation funded report.


In 2006, the City Council adopted twelve goal statements, one of which was for Des Moines to become a
Sustainable Green Community. In 2007, City Council adopted the Energy Conservation and Environmental
Enhancement Policy which provided goals and a number of principles based on the built environment, the
natural environment, and property management, acquisition, and disposal.
2011 Sustainability Report:
This sustainability report outlines the projects that have been completed according to those goals,
as well as additional projects that have been completed that follow the principles outlined in the policy.
As a result of these accomplishments, the City of Des Moines has reduced its CO2 emissions by 9% (2008-2010).
Plans are to reduce emissions by an additional 15% by 2015.
View the 2011 Sustainability Report


Old Elbe Tunnel which opened in 1911, is a pedestrian and vehicle tunnel in Hamburg, Germany. The 426 m (1,398 ft) long tunnel was a technical sensation; 24 m (80 ft) beneath the surface, two tubes with 6 m (20 ft) diameter connect central Hamburg with the docks and shipyards on the south side of the river Elbe. This meant a big improvement for tens of thousands of workers in one of the busiest harbors in the world.
Four huge lifts on either side of the tunnel carried pedestrians, carriages and motor vehicles to the bottom. They are still in operation, though due to the limited capacity by today’s standards, other bridges and tunnels have been built and taken over most of the traffic.


How do you achieve good and effective corrosion protection?
For example, by coating the surface by means of galvanising or painting.
However, it is not always possible to achieve complete corrosion protection.
For example, the cut edges of a galvanised sheet are not fully protected. Or there are special requirements for sealing two components and for avoiding crevice corrosion.
Application & customer requirements:
- Protection of attachments against crevice corrosion
- Application of the adhesive bead approx. Ø2 to Ø4 mm
- Length of the seams 120mm to 840mm
The demands on the dispensing technology are not only determined by the material used and the associated application challenges, but also by the wishes of our customers:
- Cost-optimised metering system for low-viscosity material
- Dosing system with low weight
- Two metering units via one control
- Two metering units via one material supply
- Hose lengths up to 12m (to each metering unit)
The NIMAK eccentric screw metering unit specially developed for low-viscosity material.
Due to its endless dosing concept in combination with a high-resolution servo motor, this unit meets all requirements for sealing applications.
The design of the dosing unit is very compact and can also be operated on small robots as well as 3-axis gantries with low payloads.
A wide variety of low-viscosity materials can be applied (greases, silicones, PU, etc.).
Furthermore, the fully electric pump stand from NIMAK is another innovation.
This enables us to adjust the pump pressure precisely to the requirements.
- Cost-optimised dosing system for low-viscosity material
- Control via high-precision servo motor
- No filling times necessary due to endless dosing concept
- Fully electric pump stand / material supply
- Low spare parts inventory due to very compact design of the eccentric screw metering unit
- Less maintenance required due to lower number of seals in the system (compared to classic dosing metering units)


Is it a simple crack or something else? Can it affect the integrity of my home? Is there a solution for this problem? These are questions that need to be answered.
When you should be concerned as a homeowner and the types of foundation cracks you should be aware of, read on.
Structural vs. Non-structural Foundation Cracks
There are two types of cracks in the foundation of a home. Let’s take a deeper look. Is it different? There is a big difference between the two types of cracks, and as you will soon learn, their ramifications differ too. One is superficial in nature and the other is dangerous. Knowing which type of crack you are dealing with will help you take the appropriate measures.
If you don’t know what kind of crack it is, you should ask your local contractor to inspect the foundation. They can tell you what type of crack has appeared on your foundation and suggest a solution. Ask for a breakdown of foundation repair costs before work starts.
Non-structural Cracks in the Foundation
These aren’t a threat to the structural integrity of the home. They can occur because of changes in weather conditions. Aging causes cracks to appear. Many of the factors are natural. There are some signs of cracks in the foundation.
- Cracks on plaster
- Vertical or diagonal cracks
- Narrow cracks measuring 1-2 mm wide
- There are cracks near the door or window.
Structural cracks are more aggressive than cosmetic cracks. They don’t need a lot of work. The crack injection method can be used to fix them. They last a long time when fixed. When water starts leaking through them, you should not be concerned. It can lead to mold growth.
Structural Cracks in the Foundation
Poor construction sites, overloading or poor soil bearing are what cause structural cracks. Over time, the cracks will introduce water. There are signs of cracks in the foundation.
- Stair-step cracks
- Cracks on foundation slabs or beams
- There are cracks at the bottom and top.
- Cracks measuring 1/8″ in width
A shift in the home’s foundation can be seen in the structural cracks in the walls. Delay in fixing the problem will cause more problems. Repairs will become more complex. Only a qualified contractor can fix the problem.
Structural cracks should be fixed by a competent foundation repair contractor as soon as possible because of the risks they pose. Installation of carbon fiber strips or reinforcing steel beams is the most common method of repairing them.
When Should I Worry About Foundation Cracks?
The crack is more than a quarter of an inch wide. Contact your foundation repair contractor if you have a cracked foundation. There are cracks in the foundation. There are a few cracks. If you have a lot of cracks in your foundation, it is a bad sign.
The doors and windows can refuse to close. If you have a basement, the walls could leak. There could be a problem with the foundation. The location and number basement waterproofing of cracks in the foundation determine the severity of a crack.
Don’t ignore the signs of a crack on your foundation. Pay attention to the rest of the house. Look for new cracks and watch for changes. Look for the opinion of a contractor. They will be able to determine the type of crack and recommend a solution.
Don’t attempt to fix a structural crack with injection kits. It’s too great of a risk to take.
I’m not sure if a foundation crack is structural or not. We can help you determine if your foundation needs repair.


It is incredibly easy to focus all your attention and energy on the products and materials that are going to construct your new home. However one of the most important items for ensuring a warm, comfortable and energy efficient home is the passive solar design.
In fact good design is the most cost-effective component in achieving an energy efficient home. Changing your design part-way through a build can very be costly and sometimes things have progressed too far to allow you to change the design at all. It is therefore incredibly important to ensure that the design of the dwelling has been thought through comprehensively during the concept design and building consent phases.
Original house layout (by us)
Intermediate house layout (by us)
The Design Process
Determining the brief
One of the most important things to articulate early on in the design process is the brief (or your goals). For most houses the goals are around liveable areas and the aesthetics of the building. We had those too but for us our most important goal was to achieve Living Building Challenge certification. This then came with a whole lot of other inherent goals such as Net Zero Energy and Net Zero Water.
Integrating the design process
Once our goals were established we then needed to find a team who would be willing to work with us to achieve those goals.
We were very lucky to secure the services of award winning Architect Phil Smith from Collingridge and Smith Architects. The services of a good architect who understands sustainability is invaluable when it comes to designing a high performing house. Especially since currently in NZ houses are still being designed with garages facing North and all the bedrooms facing South.
We were also lucky to secure the services of Alex Reiche from the Building Excellence Group and Yariv Edney from YEH Consulting who came on board to provide sustainability advice and solar engineering (respectively).
It is often the case that engineers are brought in after the building envelope has been specified by the architects to meet the liveable space requirements of the client. The engineers are then forced to work within the constraints of that envelope to try and make the building perform.
Rather than working sequentially with, first, the architects, and then the engineers, we used an integrated design approach with all parties working in parallel right from the beginning, integrating building performance into the design.
New houses are usually designed with a focus size and liveable area. The current goal seems to be to make it as big as possible within the allowance of the local council's district plan. However a larger house will not perform as well as a smaller one as bigger spaces require more heating.
With an energy target there may be a degree of balancing building size vs. energy performance. The Zero Energy House shaved 8m2 off the building during design which saved enough money for them to pay for both their solar hot water and PV systems. This shows that sometimes less is more.
For us working with our architect Phil has enabled us to take the 396m2 house that we had designed ourselves that included a cantilevered deck that was going to be shading the kids bedrooms downstairs and transform it to an intermediate design of only 366.8m2 . At $3500/m2 that is a $105,000 saving.
In addition to the above there is no second storey above the Minor Household Unit (or self contained flat) which gives us the flexibility to build the main house and then decide as we are going whether or not we can afford to build the MHU.
This design was then modified further by Phil Smith to again rationalise the size and space allocations. Phil convinced us to remove the 3rd garage to further compact the design of the house. He also advised us to try and eliminate having the deck 'hover' above a conditioned space above due to waterproofing concerns. Phil's design actually called for the entire deck to be cantilevered off the eastern side of the house. However we had to compromise a little bit to fit everything in as we are constrained by a required distance from the raised ETS beds (onsite waste water treatment) to the house. So we needed to pull the the house in a little bit to fit it all on the site.
Living BIG in a smaller house
Final house layout
Concept architect's house layout


HVLS or High Volume Low Speed Fans have taken an old idea and applied it in a new way to save energy while providing an effective cooling or heating solution in modern buildings.
Nearly everyone is familiar with the humble fan, a device that has been around for centuries that cools us when it’s hot. Since the advent of electric motors, powered fans have been used in myriads of applications from the most basic desk fan to highly evolved models used in large scale air conditioning systems.
Everybody knows that a cooling breeze on a hot day provides an improvement in comfort for human beings but few people know why. When we perspire in still air, a moisture saturated layer forms close to the body preventing evaporation, the natural process of body cooling. Even gently moving air breaks up the saturated air layer allowing cooling evaporation to take place and we feel cooler. The solution to feeling too hot then is to move the air around but how to do that efficiently?
The basic principle of a fan is that energy is applied via a mechanical device; in this case the blades, to move air. Let’s examine the physics of air movement to understand why big slow moving fans deliver the most air movement for the lowest input of energy. A larger volume of air ‘moves’ more efficiently than a smaller volume. Friction between moving and still air takes place at the boundary and because the larger volume has proportionally less surface area than a smaller one, there is less friction and therefore less energy required to sustain movement. In simple terms, one big fan is up to six times more efficient at moving air than an array of smaller fans. HVLS fans capitalize on this efficiency equation to deliver the greatest amount of air for the lowest amount of energy expended.
In this article I am focusing on the use of fans as applied to supporting human comfort in buildings and the energy efficiency improvements that can be derived when compared to conventional heating and cooling systems. In short, heating or cooling the air in buildings during summer and winter uses large amounts of energy. With larger buildings such as shopping malls, conditioning the air is the single biggest consumer of electrical energy above all else. In other buildings such as factories, the energy cost is so prohibitive as to prevent any form of heating or cooling being installed at all.
HVLS fans can produce a cooling effect of up to 6 degrees centigrade when installed in non air conditioned buildings. When used in conjunction with air conditioning in larger open buildings, thermostat settings can be increased in hot weather without reducing comfort, saving up to 15% in energy costs. In winter, thermostats can be turned down for similar savings as the big fans gently bring down warmer air which has risen to the ceiling through natural convection.
In a world of ever increasing energy costs and concerns about climate change, HVLS fans are delivering comfort with enhanced efficiency.


A home inspector can easily identify the signs of problems in brick veneer. Weep holes can become blocked and not allow water to exit from behind the bricks, leading to deterioration of the brick and mortar. Additionally, brick ties can be improperly installed or loosened over time, and the veneer can separate from the wall. Separation or detachment from the wall is the most important thing to inspect for with brick veneer. Looking along window and door openings, you might see the lean of detached veneer, meaning more brick shows at the top than at the bottom. A detaching veneer may have a decided bow to it or can show signs of cracking as it pulls loose and separates from the house.
As with solid brick walls, the home inspector should examine the wall for cracking in the brick and deterioration of brick and mortar. Examine weep holes in the lower course of bricks in the veneer to be sure they are open as water behind the wall cannot escape if weep holes are blocked. Often times there is brick veneer on only a portion of the house, so be sure to check areas where the veneer meets other surfaces.


Storage facility/Hamilton, Ohio
- Exposed Fastened Metal Building Panel
- 36″ Panel Coverage
- Trapezoidal Rib on 12″ Centers
- 1-1/4″ Rib Height
- Gauges: 26 GA and 24 GA Standard,
22 GA Optional
- Minimum Roof Slope: 1 : 12
- Applies Over Open Framing
or Solid Substrate
- Finishes: MS Colorfast 25, PVDF,
and Acrylic Coated Galvalume®
- Texas Windstorm Approved
- UL 580, Class 90 Wind Uplift
- UL 2218, Class 4 Impact Resistance
- UL 790, Class A Fire Resistance Rating
- Theoretical section properties computed for flexural loads per AISI Cold Formed Steel Design Manual 1986 Edition.
- Loads in tables based on continuous beam over three equal spans. For stress loads, 2-span load would be 0.80 of the 3-span load.
- Allowable loads have not been increased by 33 1/3% for wind uplift.
- Allowable loads for deflection based on deflection limitation of span/180.
- For roof panels, self weight of the panel has to be deducted from the allowable inward load to arrive at the actual “live load” carrying capacity of the panel.


Welcome To Globtech Consultancy & Engineering Pvt. Ltd.
GEPS ventilation products are designed to maintain indoor air quality by providing sufficient levels of fresh outdoor air and humidity control.
Indoor Air Quality (IAQ) refers to the air quality within and around buildings and structures, especially as it relates to the health and comfort of building occupants.
Energy savings are at the heart of the multiple benefits of energy efficiency and link to many other economic, social and environmental..
Acoustical Engineers design and construct buildings (structural and interiors) and machinery, amongst...


2011-2012 Dubuque Initiative Projects
In 2011-2012 and 2012-2013, we will be participating in a partnership between the University of Iowa and the City of Dubuque. Dubuque has become well known in the last few years for the city’s commitment to sustainability and is therefore a natural fit with the University’s and School of Urban and Regional Planning’s commitment to both sustainability and community engagement. Based on a series of meetings with over 25 community leaders, Dubuque and the School agreed that our students would focus on the following five projects in 2011-2012. These will be followed by five additional projects in 2012-2013.


In some parts of the world, this substance is found in pure state and in different forms. So far three types of natural bitumen (asphalt) have been identified:
1- Sedimentary Rock Asphalt: which is produced from natural penetration of bitumen into Calcic Rocks or Sand Stones. This type of bitumen is found as solid substance in the surface and vertical layers of the ground, like bitumen mines in Kermanshah Province, Ilam Province, Lorestan Province and Khoozestan Province, Iran.
2- Asphalt Lakes: Which is found on the surface of the ground and it is not solid, and as shown by its name, it is seen in the form of lakes, like Behbahan bitumen lake in Iran and Trinidad bitumen lake in USA.
3- Natural asphaltites: In some regions, bitumen is found with very high grade of purity including 98% of bitumen and 2% of minerals, known as the purest type of natural bitumen with relatively high softening point. This substance is found in some mines of Kermanshah Province and Ilam Province as well as in the USA. In USA, this product is known as “Gilsonite”.


Driveway Contractor Milwaukee
828 N Milwaukee St Apt 4
Milwaukee, Wisconsin 53202
A beautifully set up driveway is the centerpiece of a property. A outmoded or worn-out driveway decreases the value of a residential or commercial property in addition to lowering the curb appeal of your home. A damaged one may call for liability issues as it may result in home damage and injuries. Concrete and asphalt are commonly considered for these replacement across the Milwaukee when it comes to driveway materials. While they differ based upon cost and structure, concrete driveway milwaukee are considered as more difficult using and durable in comparison to that of asphalt. Nowadays driveways are preferred in Milwaukee for its easy availability and cost-effectiveness.
Apart from the above materials, contemporary homeowners who significantly value visual appeal and functionality, concrete driveway milwaukee is the best choice amongst all.
Now, if you are concerned about them and wondering whether it needs replacement, here are five signs that may alarm you to consider a new driveway installation milwaukee. Let's have a look at the following -
- Cracks and Small Potholes
Cracks generally occur in them that are constructed from concrete and asphalt. Cracks get worse when oil, salt and other substances penetrate the surface and further make the driveway inoperative. In most cases, homeowners repair the small fractures that not just impact the curb appeal but also make them unsafe.
Little fractures can transform into holes due to the weight of the cars. Repairing the potholes and cracks is not a excellent concept for it is not a irreversible option and leaves the opportunities of repeating. The very best thing is to talk to a driveway company Milwaukee and think about installing it as early as possible.
- Weathered Look
When this is installed by a professional contractor using the best of construction materials, it can last for very long. No matter how well it has actually been preserved, with time a driveway tends to fade due to the UV rays from More about the author the sun that fades its surface area. To get a make over either you can opt for seal coating or if you think that you want a completely new look, feel free to contact driveway contractor milwaukee.
- Drainage Problems
When driveways gets old is the problem with the drain system, one of the most unfavorable indications that happen. With time, this becomes sloppy and uneven , and you might see water obstructing right in the center and even in several areas. Now, the problem is if you have kids and older adults in your home, there are ensured opportunities to consult with accidents. Above all, your driveway can become unhygienic, slippery and likewise cause other hassles. While you can consider repairing it but replacing it with a new one will offer you a entire new experience for years to come.
- Crumbled Edges
For many years, Driveway Installation Milwaukee is preferred for it is budget-friendly. lso, this sort of installation has excellent feedback from homeowners as it can hold up against the weight of automobiles and bad weather. The main problem with the driveway is that it is not resistant to tear and use . After the installation of this, you must make sure that its edges have been protected using concrete seamless gutters. If not done, it will begin to fall apart with time, giving the overall driveway a rough appearance. Repairing them is possible, however again it is not a one-time investment, and you may require to repair them over and again.
Think it or not, driveway installation milwaukee has actually become modern homeowners' first choice. Be it from the perspective of styles, personalization options colour mixes, and simple installation process, this form of driveway installation is likewise extremely hard-wearing, easy to keep and most notably, environment-friendly.


What is A Shingle Roof?
A shingle roof is a type of roofing that uses the overlapping of sheets of metal, typically galvanized steel or zinc (zinc becomes oxidized to create an attractive surface of the metal) which have inlaid ridges. The ridges assist in removing water from the roof which allows it to flow down and away from the building.
What is what is a Shingle Roof?
A shingle roof is essentially an type of roof that is made up of small, individual pieces of plastic or metal that are fixed or stapled to the rafters. The plastic or metal pieces generally have a triangular form and are overlapping each other as the shingles that are on a roof. Not only is a shingle roof inexpensive to build, but it's also one of the most sought-after types of roofing because it's simple to maintain and repair.
How does a Shingle Roof Help Keep You Dry?
A shingle roof consists of small, thin metal sheets that are overlapping with each other, similar to roofing shingles. The sheets of metal are held together by fasteners that go through the layers, and then into the framing members beneath.
The metal sheets are very close, and water can only flow along the surfaces between them. A shingle roof won't let snow or rain build up and fall to the floor below. Instead, snow or rain quickly flows out of the roof into gutters and downspouts.
The significance of Shingle Roof Maintenance
A shingle roof uses thin, thin pieces or metal or slate to cover the roof of a building. The metal or slate sheets are known as shingles and are attached to the roof using nails or screws.
Shingle roofs are among the most well-known type of roof in the United States. Shingle roofs are cheap and easy to put up. They also provide insulation and protection from the weather. However, shingle roofs can be easily damaged due to rain and wind. A proper maintenance program for shingle roofs is vital to ensure they remain in top condition.
Wind damage can occur when wind blows against the shingles on a roof. The force of wind can cause friction and pressure between the shingles and the roof surface beneath them. This can cause broken roof shingles or leaks within the roof assembly.
Rain damage occurs when rain runs down into openings in a shingle roof, penetrates the insulation, and causes water damage within the home. Leaks in an improperly installed roof assembly can also result in water leaking into the home.
To avoid wind and rain damage to your roof shingles Keep it tidy and free from debris. Clean up snow and ice that accumulates on the roof during winter. To get rid of leaves or twigs that might have gotten stuck to the shingles, use a leaf blower or a Broom. Clear any tarps, Tarpsicles, or any other material that are hanging over a bridge ra
Shingle Roofing Services from Sipe Roofing and General Contracting
A shingle roof is constructed up of small, thin overlaid sheets of metal or paper. They are attached to the ridgeline by nails. The sheets are then coated with concrete or asphalt. Shingle roofs are cost-effective and last longer than other types of roofs. They can be installed across a range of structures, such as commercial buildings and single-family homes.
Shingles are typically made of 6 to 8 inches in width and up to 16-18 inches long. The shingles are then cut into triangular forms, and then glued to the ridge. Nails are then driven through the triangles and through the roof decking below, creating an extremely strong joint between shingle and decking.
The most significant benefit of a shingle roof is its low price. Shingles are more durable than other roof types and require minimal maintenance. In fact, many homeowners discover that they don't even need to paint their roof with shingles!
Another benefit of roofing made of shingle is their longevity. Shingle roofs last longer than other roofs that can be damaged by weather or sun exposure. They last about 25 years with no major repairs.
Address: 2459 Corporation Pkwy Suite C, Burlington, NC 27215, United States


Al Murshed design build services in Kuwait offer expert solutions for a variety of projects. It is the goal of our design and construction team to exercise responsibility with guarantees to achieve the results the client is expecting and entitled to. Carefully executed projects, attention to detail, jobsite cleanliness and professionalism are the hallmarks of our impeccable design company.
Integrating our extensive construction experience, business background and work philosophies, with an exceptional team of qualified people, Al Murshed has become a design-build company dedicated to:
- Designing and constructing projects that consistently meet the needs and expectations of our clients.
- Remaining organized, disciplined and focused.
- Understanding our client’s needs through comprehension and transparent communication.
- Completing every project on-time, with impeccable quality and cost efficiency.
- Doing what is necessary to satisfy a client on every project.


[SECURITY] Algorithms reducing traffic jams
The use of big data in transport contributes significantly to the optimization of costs in this branch of the
economy. For example, airlines use big data to adjust flight paths and reduce fuel consumption. In some
cases, changing the flight path by just a few degrees can save millions of litres of fuel per year. Not only
does it save money, but it also reduces carbon dioxide emissions. It is similar when it comes to water
transport. The Danish shipping company Maersk, for example, also uses big data to optimize the speed and select routes for its ships, which leads to a reduction in carbon dioxide emissions by five million tons
per year! This is equivalent to taking one million cars off the street for a year.
Traffic management in the world’s major cities relies heavily on big data algorithms, reducing rush hours
and traffic congestion, as well as increasing safety levels. Los Angeles and Toronto, for example, use this
type of total traffic analysis and optimize the duration of light signals on traffic lights in real-time, which
significantly shortens the journey and reduces the number of traffic accidents.


Asset Management Ontario is a non-profit volunteer community of practice comprised of public sector asset management practitioners. Our mission is to strengthen infrastructure asset management capacity across Ontario's public sector.
AMONTario is a program partner with the Federation of Canadian Municipalities. Asset Management Ontario is also the asset management training partner for the Association of Municipalities of Ontario’s implementation of the Federal Gas Tax Program. AMONTario played a key role on the Ontario Ministry of Infrastructure’s technical advisory committee in the development of the O.Reg. 588/17, (Asset Management Planning for Municipal Infrastructure) and is listed as a key resource on the Ministry’s Asset Management website.


Slab leak repairs are an option for homeowners who want to prevent the need for expensive plumbing renovations. Slab leaks can accumulate 1 trillion gallons of water nationwide if not fixed in a timely manner. As well as causing flooding and mold growth, they can also severely damage the plumbing system. Before you call a plumber to repair a slab leak, be sure to learn the warning signs of a leak. Here are some of the most common problems that homeowners face when a slab leak occurs.
Among the top causes of slab leaks is water pressure. City water has between fifty and 150 psi of pressure. Because we have no control over the pressure, our homes’ pipes are susceptible to pressure. This causes the pipes to crack and leak. Therefore, slab leak repairs are essential to avoid a house foundation shifting and water damage. If you are experiencing low water pressure, you may be dealing with a slab leak. Fortunately, the Whitten Plumbing team offers slab leak detection services.
If you can’t find the source of the leak, there are several options for repairing the problem. A plumber can diagnose a slab leak by using a noninvasive method. An electromagnetically-enhanced camera inspection or a pressure gauge will help the plumber find the leak. Then, the new pipe will be installed in the compromised space and the old one is removed. The best way to prevent future slab leaks is to protect your home by applying an epoxy coating. The professionals at a reputable company can detect and repair a slab leak and prevent it from happening again.
Inspecting the floor to see if you can detect a slab leak is essential if you want to avoid further damage to your property. Slab leaks are difficult to spot, and can be covered by floors and several inches of concrete. Some signs of a slab leak include low water pressure, wet areas on the floor, and mold growth. However, your homeowner insurance policy may not cover repairs. So, it is important to contact your insurance company for help if you suspect a slab leak.
When water pipes are under a concrete slab foundation, they can develop a leak in the ground beneath. A slab leak can cause flooding in the house, damage to sheetrock, and even an increase in your utility bill. The leak can be due to a number of reasons, including improper installation or corrosion of copper pipes. If you don’t act quickly, it could lead to serious damage to your property, including foundation issues and a costly plumbing bill.
Slab leaks can also occur because of the corrosive nature of copper pipes. These pipes are often corroded or weakened by the constant movement of the concrete slab. In some cases, the corrosive effect of these factors can result in pinholes or other signs of a slab leak. As soon as you notice hot spots on the floor, call a plumber immediately to get the problem fixed as early as possible.


Welcome to the Crete Township Road District website.
As Highway Commissioner, I am responsible for the maintenance of over 81 miles of roads in the unincorporated areas of the Township, which is currently the largest Township Road System in Will County. Even though the Highway Commissioner position is administrative, I take a hands-on approach and work alongside our crew which enables me to stay in touch with all our residents needs.
Some of the duties that we perform are, road and ditch maintenance, culvert replacements, tree trimming and removal, branch pick-up, shoulder stone maintenance, roadside mowing and clean-up, sign maintenance, asphalt patching, snowplowing and salting. We also maintain most of our equipment in-house as well as building and grounds maintenance. All this is accomplished with a crew that is dedicated and experienced in all duties of the Road District.
The input that we receive from our residents is very important and your comments help us do a better job for you.
If you have any questions or comments regarding our road system, please do not hesitate to contact me.
Anthony “Tony” Recupito