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Lighting can make all the difference in the look of a room, but lighting large rooms can be a challenge. A lack of interior walls and the high ceilings make it difficult to reflect direct light or control glare, and a multifunctional space requires different types of lighting at different times. The key to comfortably lighting a large room is understanding and employing different modes of lighting that can be layered and alternated, so as to create the right effect at the right time. Making use of adjustable and adaptable lighting features, such as a dimmer switch, is especially effective…
How you will store a portable generator depends largely on its size. Store a portable generator with help from a professional engineer in this free video clip.
Electronic paper, otherwise known as e-paper, is a key selling point for e-readers like the Amazon Kindle and Barnes & Noble Nook. Designed to combine the versatility of a regular tablet display with the reading comfort of a traditional book, e-paper can be thought of as a moving printed page. A look at the workings of e-paper gives an insight into a growing technology, with future e-paper applications including flexible and wearable devices.
Running a 5K can be a challenging activity. If you've never run one before, you might be worried about whether you'll last through the whole race. If you have run a 5K before, you might not have made it through the race at the pace you had planned before running out of steam. To make sure you're ready make it through the whole 5K, you should train for increased cardiovascular endurance, eat well-balanced meals and wear the right running gear.
Solar panels and wind turbines, when used together, are a really terrific way to revolutionize your home. Use solar panels and wind turbines together with help from an expert with Earth Wind and Solar Energy in this free video clip.
In 1996, the Federal government mandated that all car companies -- GM included -- adopt a standardized computer protocol for anything emissions related. The Onboard Diagnostics, Series II protocol dictated that not only should cars come equipped with certain emissions items, but that the computer have some means of determining when they're malfunctioning. This would be one such case.
Vehicle Dynamics Control goes by a lot of names and acronyms; but no matter which company calls it what, electronic stability control has proven to be the most impressive safety device since airbags over the last couple of decades. There are all kinds of ways to electronically control a car's dynamics, but they all work together in a systematic way to keep your car going exactly where you point the steering wheel.
Apple packs the iPhone with useful features that boost your productivity, provide entertainment and keep you organized throughout the day. Even if you use your iPhone daily, you may not know about some of the options and tricks hidden within the iOS operating system. These tricks improve the device's accessibility and give you new ways to work with Siri, apps, contacts and other iPhone tools.
If you use a diesel generator as the power source for your boat's electrical systems, you will need to know how many kilowatt-hours of electricity your generator produces. No matter where you are in the heavens or on Earth, a kilowatt hour equals 0.746 horsepower. Knowing this, all you need to convert your diesel generator's output to kilowatt-hours is the generator's horsepower, and possibly a calculator.
A digital signature is the electronic equivalent of a traditional, written signature. It is calculated using a mathematical formula, or algorithm, and represented in a computer as a string of binary digits, or “bits.” By applying a set of parameters, known as domain parameters -- which can be specific to a single user or shared among a group of users -- to a digital signature algorithm, users can verify the identity of a signatory and the integrity of the signed data.
The Coleman Powermate 6250 class of generators are portable and, as the name implies, are 6,250-watt machines at full capacity. The generator is normally gasoline-powered, but owners who are interested in cleaner energy can convert the Powermate to propane or natural gas fuel. The simplest way to do so is to purchase a conversion kit that alters the stock carburetor, but the handiest owners may be able to customize the carburetor themselves. Such a conversion also allows for longer run times and avoids the possibility of gasoline going bad over time.
Footings serve as a foundation for decks because they support the posts that hold up the deck flooring. A deck can slowly sink into the soil or show damage after a significant shift in the ground when footings fail due to improper installation. The proper spacing of footings helps ensure that a deck holds up under various amounts of weight.
Power Over Ethernet technology allows POE-enabled devices to receive a low-voltage current from the LAN Ethernet port on your computer. Powered devices can then use this current as a power source without being connected to a power outlet. If you want to use your computer's Ethernet port to generate a low-voltage power current, you can do so with the help of a POE injector device.
Panduit is an electrical and electronic component manufacturing company that produces computing, communications and security systems. Leviton Manufacturing also builds electrical and electronic components, but specializes in switches, plugs and connective devices for use in commercial and residential settings. Leviton also builds data center connectivity products that focus on data and voice equipment. Panduit is headquartered in Tinley Park, Illinois, while Leviton is headquartered in Melville, New York.
Talking to grandchildren may require a few specific techniques to bridge the generational gap. Talk to grandchildren with help from a psychologist, speaker and writer in this free video clip.
Propane generators create power by converting fuel gas energy into electricity. These generators contain numerous working parts, including the vaporizer. Vaporizers help transfer fuel from one section of the generator to another for optimal performance. The benefits of including a vaporizer in your propane generator far outweigh the few drawbacks of doing so. When deciding upon whether to include a vaporizer in your generator, always heed the information provided by the generator's manufacturer.
An electric generator provides backup electricity during power outages and when you're camping away from the electrical grid, but many people are building their own electric wind and water generators in order to produce their own power at home. If you are making an electricity generator, you need to know how to select the right size of magnet in order to get the most out of the machine. The easiest type of generator to make in the home workshop is the pancake style, as it uses simple parts attached to flat plates.
Polyvinyl-chloride, also known as PVC or vinyl, replaces wood in building materials and decorative items in the home and garden. It does not require painting and comes formed into window frames, siding, fences and furniture. Vinyl lattice provides mold-proof porch skirting and trellises for perennials that need only an annual wash with soap and water. Inexpensive or unprotected vinyl lattice may fade and crack due to a combination of environmental stressors.
Swirling graphic effects can add movement and visual interest to your portraits. Create fantasy effects with swirls of glowing light, or make the subject of your picture pop by swirling and blurring the background. There are many ways to add these using photo editing software. You can use filters to add motion blurs, liquefy and swirl the background, or add twisting strokes of color using brushes and effects.
Stucco is a durable material that helps create a smooth or textured surface and also provides a fire-resistant barrier. Stucco also can be used to cover up an unattractive popcorn ceiling. Installation methods vary based on the type of ceiling you have and whether you want to use a fire-resistant or moisture-resistant barrier.
When installing cables for the transmission and distribution of power or radio frequency, temperature is an important consideration. Temperature can affect the transmission capability of both underground and above-ground cables. When the temperature exceeds the thermal resistance of the cable, transmission problems can occur. Therefore, before installing cables, study the proposed location for year-round temperature variations and weather conditions, including rain and snow.
Each website requires a unique IP address. IP address depletion became a serious problem in the 1990s until new methods utilized available technology to maximize the number of IP addresses available. These methods included route aggregation, a process that generates a specific route and controls how networks make announcements for available routes.
Adding two subwoofers to a car audio system gives you increased flexibility in positioning, power handling and amplifier choices. The Comp series of subwoofers from Kicker extends flexibility by offering the 10-inch diameter with two impedance levels available in each speaker. How the two Comp subwoofers connect to the amplifier affects the wattage rating of the amp.
In object-oriented modeling using Unified Modeling Language (UML), generalization refers to the extraction of common elements across multiple classes, known as subclasses, and their shared associations into a general class or superclass. According to Hoffer, George and Valacich in "Modern Systems Design and Analysis," in UML modeling, generalization is represented "as a solid line from the subclass to the superclass, with a hollow triangle at the end of, and pointing toward, the superclass.” Using generalization in UML modeling is advantageous because it promotes inheritance, reusability, extendibility and simplicity.
Many modern devices use radio frequencies to communicate. For example, smartphones, laptops, GPS devices and baby monitors commonly use different radio frequencies to transmit and receive data. The strength of these transmissions depends on the frequency used, the power of the transmission and interference. Measuring the power of the transmission using a receiver-signal strength indicator helps you to determine the strength of the signal.
MATLAB is a useful software program for performing literally thousands of different mathematical calculations, from arithmetic to calculus and everything in between. It’s also capable of collecting and storing data then plotting the results in a graph, or what MATLAB calls a figure. MATLAB can generate figures in two dimensions as well as in three dimensions. The basic 2-D plotting function is “plot” and it will draw you a line graph. The usual 3-D plotting function is “surf” and it will generate a 3-D, contoured, color-coded surface plot.
MATLAB is a software environment for the generation and execution of scripts for the analysis and simulation of mathematical and technical data. White noise is a random signal of uniform frequency. It is common for most digital signals acquired in the real world to be contaminated with noise. Addition of white noise to simulated signals is important for modeling and analysis of real-world data.
Most gas furnaces use a heat exchanger to convert the gas into the hot air that is sent into the home. Furnaces are given an energy efficiency rating based on the ratio of the output of heat compared to the total energy used by the furnace, which is called the annual fuel utilization efficiency (AFUE) rating. Furnaces are considered high-efficiency when the unit has a second heat exchanger and a 90 to 97 percent AFUE rating. Troubleshooting a high-efficiency furnace is fairly simple to do when problems arise.
Having a generator to supply power during an emergency can make life more comfortable and bearable during a difficult time. Connecting the generator directly to your home's electrical system will allow you to use power like normal and avoid long extension cords running everywhere, which could cause other hazards. Before an emergency occurs that requires you to hook your generator up to your home's electrical system, hire a certified electrician to install a transfer switch. Do not hook your generator up to your electrical system without a transfer switch, as it can "backfeed" power into the power grid and cause…
Op amps, or operational amplifiers are circuits that boost the voltage of electrical signals, packaged as simple electronic devices. Amplifiers are very useful in the design of electronic equipment. op amps simplify the work needed to develop circuits. A typical op amp contains dozens of components, but the designer can treat it as a “black box” with basic, predictable and useful properties.
Plywood sheets come in a range of sizes and thicknesses. In the United States, the sheets generally come in a standard size, although sheet thickness can vary. Before deciding on plywood for a siding project, take a look at the products at your home-improvement store, and talk with a staff member about their various features.
A chimney cap is a rectangular mesh structure with a flat or peaked metal roof on top of it. It mounts directly over your chimney and prevents water from coming inside the chimney flue. It can also prevent birds or other small animals from falling down your chimney. Whether you are replacing an old chimney cap or purchasing your first one, it is important to choose the correct size.
The Trane XE90 is a high-efficiency furnace that reduces fuel waste by using up to 90 percent of stored fuel, and may require a thermostat restart to fix heating issues that occur while in use. A restart is the first step in attempting to resolve common furnace issues, and can fix minor problems that prevent the furnace from operating normally. Persistent problems with the Trane XE90 require professional repair, and is available depending on the validity of your appliance's warranty.
Based in Lancashire, England, Shaws of Darwen manufactures high-quality, handcrafted fireclay sinks. Fireclay is a hard and durable type of ceramic that resists chipping and scratching. Even so, accidents can happen with daily use. Shaws offers a repair kit for minor chips that includes instructions for its use. In general, fixing chips on a fireclay sink is a simple process.
Dryers are often noisy when in operation, and General Electric models are no different. Squeaking noises are a common issue and result from a couple of causes. The dryer often vibrates when running, causing squeaking. Components may be rubbing together to create friction and cause squeaking. Whatever the cause, it's usually easy to fix squeaking in a General Electric dryer.
A permanent standby generator provides a backup source of energy that is constantly connected. The size of the generator is one of the biggest decisions you'll need to make when buying the unit. A generator that is too small puts strain on the unit itself and on the motors of the appliances run by the generator. Knowing exactly what you want to run when the power is out helps you figure out which size of permanent generator is necessary.
Windmills originally were used to pump up water from underground streams or wells to the surface. Now windmills convert the power of the wind into electricity. Recapture the nostalgic look of an old-fashioned windmill in your garden with a few terracotta pots and copper sheeting. Build several of the windmills and place throughout the yard. Plant flowers around the bases or even a vine to grow up the windmill.
Induction cooktops date back to the 1980s, but their high prices and poor performance failed to ignite the passions of home cooks. However, performance upgrades have been made and prices have been lowered and, 30 years later, their proven energy efficiency makes these cooktops fierce competitors with their electrical and gas counterparts. While these cooktops do their job differently, they all require proper ventilation.
General Electric cooktops are available in electric or gas models. Both types require an electrical connection, as the gas model uses electricity to spark the ignitors for the burners. Gas cooktops also require a connection to the valve underneath the kitchen island or counter used for the cooktop. Connecting a gas unit requires extra work and a safety test to ensure the hookup is secure. Recruit a helper to hold one end of the appliance when lowering it into the mounting hole on the countertop.
The Red One is a digital video camera produced by the Red Digital Cinema Camera Company. The camera represents an advancement in digital film, as it can produce videos with pixel dimensions greater than typical high-definition cameras. According to Wired Magazine, this makes it one of the few digital cameras that can rival the image quality of traditional film cameras.
The Chevy small block, among its many virtues, has always maintained a fan base due to a certain quality: its "swapability." GM has never been one to under-utilize any powerplant, and has a habit of engineering them to accept any number of variant parts designed to optimize performance, cost and fuel economy. The 241 and 243 heads -- or LS1 and LS6, respectively -- are perfect examples of this modular approach; which head you chose depends on your budget and designs for power and future modifications.
While it may seem like a strange or mysterious contraption, a blast furnace is essentially a large kiln in which a blast of compressed air is pumped through the furnace’s bottom. While a regular kiln serves to heat ceramic, blast furnaces process metals. There are a variety of metalworking projects that you can complete with the help of a blast furnace. If you have little experience using a blast furnace, however, you should seek the help of a professional before undertaking any such project.
Structurally, capacitors come in a wide array of shapes and sizes. And capacitance-wise, they vary just as much. The size of capacitors is somewhat moderated by the size of their conductors and the space in the circuitry to which they are applied. If you need to install a new capacitor into a circuit, you'll need to take into account both the physical size of the capacitor as well as the size of its capacitance.
Confirmatory facto analysis (CFA) is used by statisticians to determine whether the inferences they've made between multiple pieces of variable data holds true. Computer applications handle the analysis of the complex algorithms, or groups of equations, needed to process the relationships of co-variables in your data. After you've analyzed your data, compare its residuals with your estimated output to find out if your original assumptions about the data were correct.
MATLAB is a technical software program which can perform arithmetic, calculus, linear algebra computations, figure plotting, signal processing and hundreds of other applications. Its versatility comes from its thousands of built-in, preprogrammed functions. One of those functions is “randn.” Tell the function how many rows and columns of data you desire, and it creates a matrix of random values that size, where the values fall into a “normal” or “bell curve” distribution around a mean. You cannot directly give “randn” minimum and maximum limits, but what you can do instead is stretch its output over whatever range you need.
The inMotion iM414 and the inMotion iM414v2 are speaker systems from privately held audio products manufacturer Altec Lansing. Both products are primarily designed for hooking up to the portable media player from Microsoft Corp. called the Zune. The iM414 and the iM414v2 share most characteristics; they are different, however, when it comes to the type of Zune players they support.
In the world of asymmetrical key cryptography, two of the predominant algorithms are RSA and DSA. Both systems require users to generate a keypair, a public key and a private key. However, these two encryption algorithms have different limits on the size of the keys users can generate and what encryption functions they can perform.
An energy saver switch on a heating, ventilation and air conditioning (HVAC) unit is an electrical device capable of receiving radio signals. Your utility company can send signals to the smart switch to turn the compressor on your air conditioner on and off. The goal is to save energy and money while keeping the temperature inside your home at a reasonable level.
A Class D amplifier is a high-efficiency electronic circuit designed to boost the power of incoming signals. Its operating principle is different from other amplifier classes, abruptly switching its output transistors either completely on or off. Until recently, this behavior made Class D amplifiers too noisy for audio and music, but improvements to the circuit have made it a common part of modern home theater systems.
Heating and cooling appliances tend to operate through a thermostat that effectively tells the appliances when to cycle on and off to maintain a consistent, user-defined temperature inside the home. So it's important when trying to control energy costs in the home to know the ideal temperature at which you can set these appliances so they work at their most efficient. Knowing the ideal temperature at which to set your furnace takes only a few simple considerations.
