High Quality Content by WIKIPEDIA articles The Diodes were a Canadian punk/new wave band formed in 1976. They released five albums: Diodes (1977), Released (1979), ActionReaction (1980), Survivors (1982), and Time/Damage Live 1978 (2010). One of the first Toronto bands playing that style of music, The Diodes helped foster the scene in the city. Along with manager Ralph Alfonso, The Diodes opened the first Canadian punk nightclub in 1977, called Crash n Burn, where many of the citys punk bands at that time played. The first band to play the club was The Nerves, on a double bill with The Diodes. The club was closed at the end of the summer of 1977 due to complaints by the Liberal Party of Ontario (the principal tenants of the building). Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 130 Publication Date: 2010/08/01 Language: English Dimensions: 6.00 x 9.02 x 0.31 inches
Silicon carbide (SiC), also known as carborundum, is a compound of silicon and carbon with a chemical formula SiC. It occurs in nature as the extremely rare mineral moissanite. Silicon carbide powder has been massproduced since 1893 for use as an abrasive. Grains of silicon carbide can be bonded together by sintering to form very hard ceramics which are widely used in applications requiring high endurance, such as car brakes and ceramic plates in bulletproof vests. Electronic applications of silicon carbide as light emitting diodes and detectors in early radios were first demonstrated around 1907, and nowadays SiC is widely used in hightemperature/highvoltage semiconductor electronics. Large single crystals of silicon carbide can be grown by the Lely method; they can be cut into gems known as synthetic moissanite. Silicon carbide with high surface area can be produced from SiO2 contained in plant material. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 138 Publication Date: 2010/07/18 Language: English Dimensions: 6.00 x 9.02 x 0.32 inches
High Quality Content by WIKIPEDIA articles A voltage multiplier is an electrical circuit that converts AC electrical power from a lower voltage to a higher DC voltage by means of capacitors and diodes combined into a network. Voltage multipliers can be used to generate bias voltages of a few volts or tens of volts or millions of volts for purposes such as highenergy physics experiments and lightning safety testing. The most common type of voltage multiplier is the halfwave series multiplier, also called the Villard cascade (but actually invented by Heinrich Greinacher). Such a circuit is shown opposite. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 92 Publication Date: 2010/07/14 Language: English Dimensions: 6.00 x 9.02 x 0.22 inches
High Quality Content by WIKIPEDIA articles A voltage doubler is an electric circuit with an AC input and a DC output of roughly twice the peak input voltage. They are a variety of voltage multiplier circuit and are often, but not always, a single stage of a general form of such circuits. The term is usually applied to circuits consisting of rectifying diodes and capacitors only, other means of doubling voltages are not included.The Villard circuit consists simply of a capacitor and a diode. While it has the great benefit of simplicity, its output has very poor ripple characteristics. Essentially, the circuit is a diode clamp circuit. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 68 Publication Date: 2010/07/14 Language: English Dimensions: 6.00 x 9.00 x 0.16 inches
Group of Glass Vacuum Tube Diodes Photographic Print by . Product size approximately 18 x 24 inches. Available at Art.com. Embrace your Space - your source for high quality fine art posters and prints.
In this book, I have optimized the growth of n and pGaN films, and high quality InGaN/GaN multiple quantum wells (MQWs) on sapphire (0001) substrate by a low pressure metalorganic chemical vapour deposition and have fabricated high brightness InGaN/GaN MQW lightemitting diodes (LEDs) under optimum conditions. To improve quantum efficiency which is generally poor in the conventional rectangularshaped QWs due to spatial indirect recombination induced by internal piezoelectric field, we proposed a possibility of quantum dot (QD) engineering with triangularshaped band structure in the InGaN/GaN QWs. The structural and optical properties of the InGaN/GaN MQWs with different threading dislocation densities were also investigated. The effects of Sidoped nGaN and Mgdoped pGaN layers on the electrical and optical properties of the InGaN/GaN MQW LEDs were investigated and optimized under various growth parameters. Author: Choi, RakJun/ Hahn, YoonBong/ Lee, HyungJae Binding Type: Paperback Number of Pages: 156 Publication Date: 2010/06/23 Language: English Dimensions: 5.98 x 9.01 x 0.36 inches
High Quality Content by WIKIPEDIA articles Nanocrystalline silicon (ncSi), sometimes also known as microcrystalline silicon (cSi), is a form of porous silicon. It is an allotropic form of silicon with paracrystalline structureis similar to amorphous silicon (aSi), in that it has an amorphous phase. Where they differ, however, is that ncSi has small grains of crystalline silicon within the amorphous phase. This is in contrast to polycrystalline silicon (polySi) which consists solely of crystalline silicon grains, separated by grain boundaries. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 150 Publication Date: 2010/05/19 Language: English Dimensions: 5.98 x 9.01 x 0.34 inches
Scott Voltage X OTG Goggles The OTG model is designed to fit over-the-glasses Knowledge gained from the development process of the High Voltage, Voltage "R", the 89X, and the standard of the industry has been combined to develop the new Voltage X This goggle features the best helmet and face fit ever Back painted polyflex urethane frame with hydrophilic face foam Double buckle silicon lined woven strap Clear single anti-fog lens Accepts all high voltage lenses, tear offs and accessories **Closeouts are limited to stock on hand**
Revised and fully up-dated, the second edition of this graduate textbook offers a comprehensive explanation of the technology and physics of LEDs such as infrared, visible-spectrum, ultraviolet, and white LEDs made from III-V semiconductors. Elementary properties such as electrical and optical characteristics are reviewed, followed by the analysis of advanced device structures. With nine additional chapters, the treatment of LEDs has been vastly expanded, including new material on device packaging, reflectors, UV LEDs, III-V nitride materials, solid-state sources for illumination applications, and junction temperature. Radiative and non-radiative recombination dynamics, methods for improving light extraction, high-efficiency and high-power device designs, white-light emitters with wavelength-converting phosphor materials, optical reflectors, and spontaneous recombination in resonant-cavity structures are discussed in detail. With exercises, solutions, and illustrative examples, this textbook will be of interest to scientists and engineers working on LEDs and graduate students in electrical engineering, applied physics, and materials science.
High Quality Content by WIKIPEDIA articles Strained silicon is a layer of silicon in which the silicon atoms are stretched beyond their normal interatomic distance. This can be accomplished by putting the layer of silicon over a substrate of silicon germanium (SiGe). As the atoms in the silicon layer align with the atoms of the underlying silicon germanium layer (which are arranged a little farther apart, with respect to those of a bulk silicon crystal), the links between the silicon atoms become stretched thereby leading to strained silicon. Moving these silicon atoms farther apart reduces the atomic forces that interfere with the movement of electrons through the transistors and thus better mobility, resulting in better chip performance and lower energy consumption. These electrons can move 70 faster allowing strained silicon transistors to switch 35 faster. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 134 Publication Date: 2010/07/31 Language: English Dimensions: 6.00 x 9.02 x 0.31 inches
High voltage power electronics market and technology trends
The power electronics market is booming at all voltage ranges! More importantly, power devices for application markets >1.7kV like wind power converters, electricity transportation and distribution (T&D), rail traction and ship & vessel propulsion correspond to high added-value businesses.
It is sure that their total 2010 expected market size of $405 million (including power devices and power modules) is small compared to lower voltage markets, but they remain very dynamic and offer the potential of high margins.
These market developments are primarily driven by energy saving considerations and green technology developments. They are actively supported – e.g. electricity T&D – by several governments and leading companies are working to improve their technology.
As such, IGBTs, thyristors (GTOs and IGCTs) and diodes will get access to more and more technological improvements like transition to 8'' wafer platforms and use of silicon carbide (SiC) materials among others.
However, the long time period of order contracts, the low volume production they imply and the issues to increase voltage to use SiC-based components induce quite light competition between the well-established players of those markets.
Market metrics
Total market for high power devices and modules (including IGBTs, thyristors and diodes) was $390 million in 2009 and is expected to ramp up to more than $570 million by 2015.
Rail traction will contribute more than 65% of this value because of the high level of production it represents and the number of inverter units per locomotive.
Electricity T&D will benefit from the strongest CAGR between 2010 and 2015: 11.1%. Indeed, we expect plenty of work to be realized for HDVC transportation, and ABB to provide an important contribution to HVDC light architecture by making IGBTs.
Wind turbine converters have not suffered so much from the 2009 crisis, and their growth is expected to be the second strongest, with 2010 – 2015 CAGR of more than 9%.
Finally, ship and vessel markets have been impacted unevenly in 2009. Military vessels have kept on growing – relatively to the long time period of ship manufacturing – whereas passenger yachts acquired for private use have drastically decreased. As a consequence, we estimate the global IGBT module market for ships and vessels to resume in 2013 and reach $26 million by 2015.
Report Highlights
Power electronics represent a daily challenge in several systems today (photovoltaic inverters, hybrid electric and electric vehicles, cameras, white goods,…) from a market point of view, but also from a technology development aspect.
Plenty of companies are pushing R&D efforts hard in order to provide the most cost-effective, efficient and reliable materials, devices and systems. And some more "hidden" applications, like the over-1.7kV segment described in this report benefit from those efforts. The 4 following segments have been investigated in this report: - Wind turbine converters, - Electricity T&D, - Rail traction, - Ships and vessels.
Due to diversified utilization, low interest in pushing marketing efforts and flatness of market revenue evolution, we have not described industrial motor drive and UPS markets.
With deep understanding of these application markets, Yole Développement provides a detailed analysis for each of them on: - The technical developments provided by the leading companies - The architectures of inverter units - Market data of macro market: wind turbine installed base, shipments of vessels and trains, and number of existing power installations for electricity T&D - Market metrics of related power devices and modules: IGBTs, thyristors and diodes - Market estimation of silicon wafers and SiC substrates penetration - Deep understanding of the value chains - Market shares of leading companies
Mirror Lens Mount Looking for Cheap Tracking Mount for Olympus DSLR for Star Gazing?
I'm looking for a cheap mount that will track stellar objects for me so I can take long exposure photos with my Olympus Evolt E-410 DSLR with 500mm Mirror and/or 500mm telephoto lens. Please help!
Cipa Tri Lens Ski Mirror . 4" x 12" convex tri-lens mirror is designed specifically for recreational boating. Middle mirror is stationary. Two side mirrors can be adjusted for enhanced field of vision. Universal, quick-mount design allows for fast, easy installation.
Lens for Nikon Mount is of highest optical qualityPowerful Rokinon mirror lens comes with a faster F stop than most mirror lensesTake beautiful sports and wildlife photos with the Rokinon 500mm f/6.3 mirror lensNew Black Diamond colorIncludes lens cap and caseCamera accessory ideal for everyday useLens includes a Nikon T-Mount adapter to attach it to all Nikon cameras Compatible with all Nikon digital SLR cameras Aperture is F6.3 fixedOptical construction with seven elements in six groups Angle of view is five degrees Manual focus typeMinimum focusing distance is 6.1 feet Front filter size is 95mmLens measures 4.7 inches long x 3.86 inches maximum diameter Model number ED500M-B1 + T2-AI
500 mm ultra-telephoto, multi-coated mirror lens is incredibly compact and lightweightAdvanced reflex design makes lens perfect for wildlife and sports photographyLets you take incredibly close shots from long range distancesCamera lens mounts to all Nikon SLR and digital SLR cameras with the included t-mount adapterSimply attach t-mount adapter to your camera, then attach the lens to the adapter and you're ready to goLightweight camera lens only weighs 12.7 ouncesLens construction: 7 elements in 6 groupsAngle of view: 5 degreesMinimum focusing distance: 5.6 feetFocus modes: manual focusFilter size (rear): 30.5 mmFilter size (front): 72 mmFixed aperture: f/8Macro magnification: 1:2.7T-mount adapter required and includedIncludes ND-2X, ND-4X and Skylight rear-mount filtersComes with a case and instruction manualMeasures 3.4 inches long x 3 inches in diameter
Mirror lens for Pentax mount is of highest optical qualityLens is multi-coated and provides crisp, clear and sharp telephoto picturesHigh-definition telephoto lens is ideal for sports and wildlife photography New Black Diamond colorIncludes lens cap and case Aperture is F8.0 fixed T-mount (Included for Pentax) Optical construction with eight elements in eight groups Angle of view is three degrees Minimum focusing distance is 11 feet Front filter size is 105mmRear filter size is 30.5mmDimensions: 111mm in diameter x 5.7 inches longModel number 800M-B1 + T2-PK
Rokinon 800mm F/8.0 Mirror Lens for Nikon Mount is of highest optical qualityLens is multi-coated and provides crisp, clear, and sharp telephoto picturesRokinon high definition telephoto accessory is ideal for sports and wildlife photography Aperture: F8.0 Fixed Optical construction: Eight elements in eight groups Angle of view: 3 degrees Minimum focusing distance: 11 feet Filter size: Front=105mm Rear=30.5mm Length: 144.5mm(Max) Maximum Diameter: 111.0mm Weight: 2 pounds Mount: T-Mount (included for Canon EOS) Lens coating: Multi coated]
The Rokinon 500mm f/8.0 Multi-Coated Mirror Lens is incredibly powerful. It's an excellent addition to any photographer's collection. This lens is a high-quality, computer designed product that incorporates the merits of both reflex optics and refraction optics. This combination provides the user with an extremely sharp picture with minimum color abberation. With its tremendous power, this lens is ideally suited for wildlife and sports photography. Multi-coated high definition optics and an integrated lens hood combine to maintain maximum contrast with reduced glare and reflections. It produces sharper, more intense pictures. Take incredibly close shots from long range distances. While this lens is designed for high definition telephoto photography, it is also one of the most affordable precision optics available, which allows anyone on any budget to enjoy shooting crisp, clear pictures. Aluminum alloy construction provides for a lightweight and rugged design that includes a rotating tripod mount, for balance and stability when mounted on a tripod or monopod. Comes in a beautiful Diamond Black body finish.
Manual focus mirror lens is an ultra-telephoto lensExtremely compact and lightweight for its focal lengthThis lens is ideally suited for outdoor photographyIt has a fixed aperture of f/8Includes the Nikon T-Mount
Manual focus mirror lens is an ultra-telephoto lensExtremely compact and lightweight for its focal lengthThis lens is ideally suited for outdoor photographyIt has a fixed aperture of f/8Includes the Canon T-Mount
Rokinon 800mm F/8.0 Mirror Lens for Canon EOS Mount is of highest optical qualityLens is multi-coated and provides crisp, clear, and sharp telephoto picturesRokinon high definition telephoto lens is ideal for sports and wildlife photographyAperture: F8.0 FixedOptical construction: Eight elements in eight groups Angle of view: 3 degrees Minimum focusing distance: 11 feet Filter size: Front= 105mm Rear=30.5mm Length: 144.5mm (Max) Maximum diameter: 111mm Weight: 2 pounds Mount: T-Mount (Included for Canon EOS) Lens coating: Multi coated
Rokinon ultra-telephoto, multi-coated mirror lens is incredibly compact and lightweightLens is ideally suited for sports, nature and wildlife photographyPhoto accessory has a powerful focal length of 800mmFeatures a fixed aperture of f/8T-mount adaptor for Olympus/Panasonic is included to attach the lens to your cameraPackage includes lens case and lens capFeatures:Lens construction: 8 elements in 8 groupsDimensions: 5.7 inches long x 4.4 inches in diameterFront filter size: 105mmRear Filter Size: 30.5mmMinimum focusing distance: 11 feetFixed aperture: F/ 8Focus type: ManualWeight: 2 pounds
Equip yourself for the outdoors with this powerful Rokinon mirror lens Perfect for camping and hunting, this mirror lens comes with a new faster F stop Ideally suited for sports and wildlife photography, this lens can also be used for everyday use Lens includes a Nikon T-Mount adapterCompatible with all Nikon digital SLR camerasAperture Range: F6.3 fixedOptical construction: 7 elements in 6 groupsAngle of view: 5 degreesLens type: manualMinimum focusing distance: 6.1 feetFront filter size: 95 mmLength: 4.7 inchesMaximum diameter: 3.86 inchesWeight: 24.9 ounces Lens coating: multi-coatedT-mount adapter required and included
Equip yourself for the outdoors with this powerful Rokinon mirror lens Perfect for camping and hunting, this mirror lens comes with a new faster F stop Ideally suited for sports and wildlife photography, this lens can also be used for everyday use Lens includes a Sony Alpha/Minolta T-Mount adapterCompatible with all Sony Alpha and Minolta digital SLR camerasAperture Range: F6.3 fixedOptical construction: 7 elements in 6 groupsAngle of view: 5 degreesLens type: manualMinimum focusing distance: 6.1 feetFront filter size: 95 mmLength: 4.7 inchesMaximum diameter: 3.86 inchesWeight: 24.9 ounces Lens coating: multi-coatedT-mount adapter required and included
Equip yourself for the outdoors with this powerful Rokinon mirror lens Perfect for camping and hunting, this mirror lens comes with a new faster F stop Ideally suited for sports and wildlife photography, this lens can also be used for everyday use Lens includes a Pentax PK T-Mount adapterCompatible with all Pentax digital SLR camerasAperture Range: F6.3 fixedOptical construction: 7 elements in 6 groupsAngle of view: 5 degreesLens type: manualMinimum focusing distance: 6.1 feetFront filter size: 95 mmLength: 4.7 inchesMaximum diameter: 3.86 inchesWeight: 24.9 ounces Lens coating: multi-coatedT-mount adapter required and included
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Canon Camera Shutter and Mirror action in slow motion
Camera 500D - A Wonderfully Full-Featured Camera At An Unbeatable Price!
I've had the Camera 500D for about almost week now and after some extensive use, here are my thoughts:
1. 15.1 megapixel sensor. Yes, the high megapixel count is impressive, but keep in mind that, as you approach higher resolutions, you need to ensure the lens on the SLR can resolve that much detail. Sadly, the included 18-55mm IS lens is functional, but the high resolution really shows the so-so quality of the lens. Even if taken at the proper focus, pictures can appear soft with this kit lens. Shots I have taken with Canon EF-S 17-85mm and EF 70-200mm L lenses are crisp. I don't have any gripes on image quality. There are some issues with noise on the higher ISOs that don't seem to show up on the Nikon digitals, but overall, the quality is amazing for the price. Skin tones, textures, colors are reproduced very accurately.
2. Digic 4. The Digic 4 processor appears to process/save the 15 megapixel images in the same time (if not faster) than the Digic III processor on the XSi (even in RAW+Jpg mode). I have also noticed that at higher ISOs, the sensor and the Digic 4 produce images with less overall noise compared with its predecessors.
3. LCD. The 920,000 pixel LCD screen is large (3"), crisp, vibrant and fully visible even in bright sunlight. In comparison, the Canon XSi SLR (which the Camera 500D replaces), also has a 3" LCD, but with 230,000 pixels. The viewing angle is great as well and the LCD can easily be seen nearly 180 degrees around.
4. ISO 12800. Canon and Amazon are correctly identifying that the Camera 500D maxes out at ISO 3200. Some less reputable dealers are listing an ISO 12800, which you should disregard. The ISO 6400 and 12800 settings are expanded ISO settings. The pictures taken on these two settings are ISO 3200 images pushed to ISO 6400 or 12800 by the Digic 4 chip before saving to the memory card. These pictures are extremely grainy and contain a lot of noise to the point of only being usable as for snapshots or adding an artistic effect to certain compositions.
5. Penta-mirror. That Canon is still using one in the Camera 500D is disappointing. The penta-mirror viewfinder image is functional, but still noticeably darker than that of the penta-prism viewfinder in the Nikon D90 (which is the Camera 500D's main competitor). I really would have preferred if Canon had kept the XSi's 12.2 megapixel sensor, forgone 1080p video altogether, and maybe upped the cost of the camera slightly to cover the production cost of using a penta-prism in the Camera 500D. Honestly, unless you are massively cropping your images, or creating large photos, the difference between 12.2 and 15.1 megapixels really is negligible.
6. Size. This is the same body as the XSi, and therefore a bit on the smaller side compared to other digital SLRs. I have small hands, so the Camera 500D is comfortable for me. If you have big hands, I can see this being a very difficult camera to use over an extended period of time. If you haven't handled a Canon XT, XTi or XSi, I would suggest you go to a store and hold the Camera 500D yourself before purchasing it online. (I will upload a picture of the Camera 500D in my hands to the user gallery for a size reference.) 7. HD Video. Yes, the Canon marketing department made a horrible marketing decision and pushed the Camera 500D onto shelves limiting the 1080p recording to 20fps (frames per second). Recognize this as a marketing gimmick that allows them put a 1080p sticker on the camera box. The 1080p @ 20fps is fine most times, but seems a choppy if you have a lot of action in the frame or are panning quickly. The Camera 500D's 720p video is recorded at 30fps and is clean, smooth, and sufficient for all but the most discerning consumers. One major criticism though is that the sound is recorded in mono, AND there is NO input for an external microphone.
A lot of pre-production reviews of the Camera 500D criticize its inability to automatically autofocus while recording. I wouldn't put much weight in this criticism, mostly because neither of the other two SLR cameras with HD recording capabilities (Canon 5D Mark II and Nikon D90) can automatically autofocus while recording either. What you can do with the Camera 500D is pan/zoom the lens and then press the AE lock (*) button to make the camera autofocus on the new subject (all while recording). A problem with using the AE lock button to have the camera autofocus is that the microphone for the camera is on the front upper left of the body near the lens mount. Therefore, the lens motor noise is picked up just as much as ambient sounds. Even with my quietest Canon USM (ultasonic motor) lenses, this lens motor sound is pretty loud in video playback. Although, remember, you can always manually turn the focusing ring on the lens to get your subject back into focus. It's not easy, but after a little practice, it's not all too hard, either.
Ultimately, you shouldn't let the HD recording limitations sway you one way or the other. This is an SLR camera -- not a video camera. The HD video is a great feature, but if you're looking for something primarily to take video, look elsewhere. There are much better, cheaper VIDEO cameras out there which can record true 1080p.
8. Record button. For some reason, the record video button is next to the LCD screen (the same button used for direct printing). The first few times you take video, you'll intuitively find yourself using the shutter release button used to take pictures. The reason for this switch is that you can take a still picture while recording video, although, doing so will interrupt the recording.
9. Battery life. My first fully charged battery only lasted about 250 shots (no flash), but all charges since have given me in the range of 500-700 shots per charge. I'm guessing the first charge had such a short life because I spent quite a bit of time learning the camera, its menus, and settings.
10. Live View. I honestly can't review this as I haven't used it too much yet -- I prefer using the viewfinder. One feature I can say is nice is that, on the LCD, you can digitally zoom in (up to 10x) on a section of your shot to ensure it is properly focused. This, and the fine focusing, can really help if you're into macro-photography.
11. HDMI cable. The Camera 500D has an HDMI Type C output on the body to allow you to directly display pictures and video on an HDTV. A minor criticism is that the HDMI Type C cable is not included in the box. You have to buy it separately. It would have been nice if it were included, as it's not an expensive cable.
Conclusion. The Camera 500D is a bit on the light end, yet the construction still feels solid. For the camera's price point, you'd be hard pressed to find any digital SLR out there which gives you all the capabilities and growth range of the Canon Camera 500D. The camera is intuitive enough for those new to photography to pick and learn easily, yet configurable enough for advanced amateurs. If video is not a big deal for you, then get the Canon XSi.
There is very little the Camera 500D has (other than ISO 3200 and a sharper screen) that the XSi doesn't. Plus, with the release of the Camera 500D, you can probably pick up a used XSi for a great price on eBay. My wife recently gave birth, and I'm not looking to record endless (never to be watched) tapes of video footage of our son, but I do want several minute clips of him as he grows through the years. I've always been more inclined towards photography, so this camera gives me a very versatile digital SLR that I need with the wonderful capability of recording HD video that I want.
Pmt Housing I need advice. I have an adjustable rate mortgage. My home has no equity. What can I do to lower the pmt?
Like many people i was one of the many that got stuck with an adjustable rate mortgage. My pmt is about to adjust, is increasing by $400. I don't know what to do because the housing market is very shaky and i can't sell my home because i owe more than it's worth. Please someone, help i don't know what to do. What options do I have. Many people have told me to talk to my lender and see if we can come into an agreement instead of foreclosing my home.
Yes, I would definitely recommend refinancing. The foreclosure epidemic in our country has caused reform in government backed loan refinancing programs. FHA Secure is a program that may be able to help you. My company has just initiated this program. It is specifically designed for consumers that have non-FHA arms that are adjusting and were not past due prior to the adjustment in rate. FHA has great rates and will help people like yourself experiencing this problem. Email me if you need further info on this program. Good Luck.
Ultrasound Treatment is commonly used in physical therapy to relieve pain and inflammation increase range of motion reduce muscle spasms and to speed in the healing process of many common injurys. This ultrasound unit is great for mobile physical therapy services start up clinics at home use by patients or as a backup or 2nd unit for your office.The PMT Premium Portable Ultrasound Machine generates deep heat through a piezoelectric crystal soundhead. The piezoelectric crystal converts electrical energy into a strong vibratory soundwave or "ultrasound a sound beyond the normal range of human hearing. Sound waves cause vibration of the cells in the soft tissue increasing temperature and inducing vasodilation. When used as indicated little or no heat is felt on the surface of the skin of the ultrasound patient. Ultrasound therapy machines should always be used with ultrasound gel. The ultrasound gel helps to transfer the sound waves into the body during treatment. Using the machine with out the gel could damage the ultrasound device and lower the efectivness of the therapy. Please note: These machines do not create ultrasound images. Includes:Portable Ultrasound Machine AC Adapter Hard Plastic Carrying Case Instruction Booklet Ultrasound Gel.
Bully Dog Power Programmers and Control Modules in stock now! Read Bully Dog PMT Performance Management Tool customer reviews. AutoAccessoriesGarage.com has the best selection of Bully Dog Performance Chips at the lowest prices around. Bully Dog PMT Performance Management Tool are chosen by auto enthusiasts everywhere to personalize their vehicles. Bully Dog PMT Performance Management Tool available now at AutoAccessoriesGarage.
" Replacement Blue PMT Dual Lens for Smith Warp Goggles Smiths full line of specialized tint lenses block 100% of the suns harmful ultraviolet radiation (UVA/UVB) All are made of impact-resistant, hard-coated and scratch-resistt"
40300 Bully Dog PMT (Performance Management Tool) fits: 1999-2010 Chevy Express, 1999-2010 Chevy Kodiak, 1999-2010 Chevy Silverado, 1999-2010 Dodge Ram, 1999-2010 Ford Econoline, 1999-2010 Ford Excursion, 1999-2010 Ford F-250, 1999-2010 Ford F-350, 1999-2010 Ford F-450/550, 1999-2010 GMC Savana, 1999-2010 GMC Sierra, 1999-2010 GMC Topkick. 40300 Bully Dog PMT (Performance Management Tool) Features - Order with confidence! AutoAnything is an authorized Bully Dog dealer. With us you get the genuine factory product, plus full manufacturer warranty & support. Boosts the diesel performance of your Dodge, Ford or GM. Increases torque up to 221 ft-lbs (power added depends on vehicle and applications). Increases horsepower up to 30HP towing, 75HP performance and 115-140HP extreme (power added depends on vehicle and applications). Adjustable downloader, monitor and gauge in 1 unit. Bully Dog PMT Performance Management Tool. Bully Dog 40300.
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ZERO DOWN PAYMENT: Separate Mother-in-Law Quarters
Credit report FAQ
Collection agencies? I have some medical bills from this year that I salaried off. in a minute out of no where their motto I owe 300 dollars, so I fax them the proof that I paid and they still won't do anyhting. I call the medical place to see if I missed a payment and they said no. So my cross-examine is if the collection agencies they that its on my credit report as bad can they do this?P.S I basically looked at my credit report and there is no medical bills on nearby.
Collection Agency calling...? If a collection agency is calling but nothing appears on your credit report from the agency almost a debt...What can/should you do?!?
Collection agency HELP? If I get sent to a collection agency does that automatically tight-fisted it goes on my credit report. I get a letter from a collection company and I call the same time and paid it. They said it wouldn’t step on my credit report just as long as I took fastidiousness of it. Are they ieing. Can they lie nearly that??
Collection Agency nuisance? I live in Tennessee (USA), be evicted from an apartment complex in 2002, be clearing up my credit report in 2006, and settled the debt next to the agency listed on my report. I next got a consolidated report information bank this debt with another agency and be told that the judgement would only be flecked as paid if the courts get a letter from the unproved collector that the order be filed beside. I contacted them and paid a drop by to show my proof of payment. They told me what I rewarded for had zilch to do with what they be charging for. And of course, they didn't even look at my rewarded in full memo. The guy told me they charged me for the month's rent that I was evicted, the subsequent month, and the attorney's fees. The more recent agency, they said, charged for renovating the apartment. They said I had ten days from later, yesterday (1.8.07), to call them support with arrangements, or they would reinstate the debt. On the most recent agencies paperwork, at hand IS a line item for a/r resident. Advice?
Collection agency on credit report, settle up it or not? Basically, my husband went to the ER up contained by NY about 3 years for a workers comp luck - he needed stitches in his finger. Anyway, of late figured everything be taken care of through his employer - apparantly not. Jump forward to today - we are living within FL for the past 2 years - husband only just ran credit report and see this collection account in relation to the hospital bill. Long story short, husbands previous employer is no longer in business. I to some extent just clear it, but someone told my husband, even if you pay it, it will still show up on your credit report as a collection - so it doesn't manufacture a difference if it's paid or not. Is this true? We are clueless going on for these things. I tried to do some research on the computer, but was bearing too much info for me to understand.Thanks for your lend a hand. I should also add that this is the solitary negative article on husbands credit report - not sure if that matters.
Collection agency posted adverse sitting duck on my credit report that's not mine? I asked them for proof (copy of credit application) they said they don't have and adjectives they can give me is a signed statement from the dune that it was open in my name(but the wall could of made a mistake). I never received any correspondence from the credit card company or the collection agency and this account have never showed up on my credit report until now. I found out in the region of it in November 2006 when my credit win dropped because of this. I contacted Equifax(all they did was contact collection agency that enter the inaccurate data) and the the collection agency. Agency said the ending pmt made was 9/2001 I asked where on earth was statements man mailed explanation they never came to me. They utter I have to rate, but this is not mine. I have excellent credit near low interest, this is going to make my interest rate rear to over 24%. What can I do? Shouldn't they have to hand over me proof. Do they have to steal this off my credit report until this is settled? Help!Thank you.
Collection Agency Reporting the entry after salaried...? Two weeks ago, i checked my Experian credit report and saw that a medical bill from 2001 for $96.00 was surrounded by collections. I went on and salaried that off finishing week. I have signed up for "each day alert" of my credit score from EQUIFAX. This entry be never on my EQUIFAX report till yesterday. My score go down by 33 points because of this entry. Can the collection agency report an entry to the credit bureaus AFTER they receive the check ? The status on this account that be reported on my report yesterday is UNPAID...They received the check last week though... What should i do? I want to draw from this removed from my credit report.
Collection Agency? I have a short time ago recently found out that my credit evaluation has dropped almost a 100 points due to a collection agency putting me contained by collections. This is the first time that i've even heard from this agency and it be through viewing my credit report. I've never recieved and notifications that any money be due. It said that it is $111. Im currently in Iraq, so my option are limited. Is in that anyway of taking things off your credit report?
Collection Company didn't verify w/i 30 days, months subsequent on credit report again!? I had a debt from a collection company for AT&T for roughly $600 as a negative on my credit report. I have sent them a validation letter months and months ago (I contemplate from June-Aug 06). They never responded and they took off the refusal mark on my credit reports. Just a couple of days ago I received a packet within the mail from the collection company axiom that the debt has be validated. The packet included a exceptionally long statement of each give the name I made and my last statment amount. Didn't rather say that I never compensated it or that I did. Just the last statement.I checked one of my credit reports and they put it on as a cynical remark! I thought that if they didn't validate it surrounded by 30 days they can reinvestigate for another 15. This has be MONTHS later. I own done some research and I can't seem to find proper information on how to concord with it. I don't comparatively understand the FCRA completely...sometimes for a while hard to become conscious. Your help is greatly appreciated.
Collections have it wrong? Ok, so my wife and I have be getting calls from a collection agency in relation to a hospital visit from a year ago. There have been a mix-up beside paperwork on the insurance company's end (hadn't have me listed as "spouce") and the bill hadn't be paid. We contacted the insurance and have it corrected. They paid the bill (we hold the check number and date it cleared) but this collections agency keeps calling and say the bill's still outstanding even after we've sent them a copy of the notice from the insurance company. So here's my put somebody through the mill: What's our next recourse? We've done everything we're supposed to do. We've contacted the right folks and we're still getting hosed. And how do we get this removed from our credit report?
Collections on my credit report!? I know that Collections on your credit report lowers your score. I hear that if they are left unpaid, it doesnt do anything and you canleave them unpaid for however various years til they disappear off your report. Is that true? Or is it better for your ranking to pay them? Help!
Collections warning please!? I have an issue w/ a collections agency. First when I travel to my credit report the agency has lone a po box and no phone #. Once I found them on my credit report (a few years after it posted) I filed a dispute. Nothing. I file several more and then finally someone from the agency call. They told me there be nothing I could do I have to take it up w/ the doc. I call for the doc and explain like I explained to the collection agency. I have 2 ins companies and he only billed one. He said the doc's bureau he contracted with just provided him the info for the one ins. I said I could call them and procure my file which showed the 2 ins plans. He told me that since he could not bill them I immediately owed the debt. I was upset but anything. We were chitchat about payments and I asked if I discharge him is he going to take precision of the collections and now adjectives the fees w/ them. He said no that is my contract. I said they referred me to you to handle this. He said that be now my treaty. What actions should I rob now?
collections? I recieved a bill from a collection agency , demanding payment for a bill from 1997. i am sure that this probaly go on and came stale of my credit report.DO I HAVE TO PAY THIS COLLECTION.
combining credit reports? I have really good credit, but my bf have VERY bad credit, beside outstanding delinquencies from like 5 years ago. what happen when we get married? do they start a alien credit report for the accounts with the 2 of us or "combine" our reports? or in recent times keep us seperate?
comfort near credit report? how many days,weeks, credit card company obligation to make credit report, on my ssn.thankfulness
Constant continual errors on Credit Report year after year..What is going on?? Anyone else go thru fixing Errors on their 3 credit report with the sole purpose to have up to date errors pop up that take undeniably ages to clear them up only again again surrounded by a few months later more intentional errors pop up? What is REALLY going on here? Is someone making money beside these intentional errors?? Ive been going thru this for 2 years! This nitemare next to these errors on the credit report just wont downfall.
Consumer statement on credit report? I was looking at my credit report, which includes a voluntary repossession of a vehicle that I had to supply back due to some financial problems I be having, and I be wondering if I should put something in the consumer statement paragraph explaining what happened?
Consummer credit company? does signing up with a consumer credit company , to survive and pay down your debt, hurt your credit report ? does it lower your fica chalk up ? i want to find this out before i sign up beside a company . thank you
contained by a few months, I will money past its sell-by date a bill explicitly tabled as a charge off-how long till it's sour credit report? Is there a service I should use, or are they a scam?
Could a hospital run rear an depiction that have gone to collections? I am trying to fix my credit but I have a 4000 medical bill that have went to a collection agency on my credit report. The collection agency are tremendously hard race to talk to. I contacted them to fix the situation very soon they wont leave me alone. They are threathning to sue me and they want me to cause a promise to pay over the phone of partly or even a thousand to stop the court case. I fairly would not even deal near them. I would be willing to discharge the hospital. They seem rather more professional. Can I switch back over or should I newly pay the collection agency what I can. I believe if I remunerated the hospital they could forward the money to the agency. How would it be listed on my credit report. ( paying as agreed or something else) Please Help!!
Could I sue somebody for affecting my credit?? I financed a car, and after 2 years settled to trade-it-in on the same delearship for a clean one.They are supposed to pay-off my old coup¨¦ debt to the bank because I get a new one and they are totalling the balance I owe to the topical debt. The delearship is VW, and the financing co. is VW Credit...The thing here is that they paid-off the aged car after 1 month I get my new one and I checked my credit report and I own 1 negative description because that payment be past due for more than 30 days..Can I sue them?
Credit Advice--Please Help--I have 4 collections on my credit report.? I have salaried 3 in full (today actually), and the 4th is contained by process. When should i expect to see an increase in my credit rack up and how much will i see?? i'm at 595 right now.
Credit Advisor / Guide is near such a entry? My husband and I are planning on buying a house in September. We know what our credit score are and we know that we have some choices to clear on how we handle our finances surrounded by the next 6 months. We want to reach a deal to someone who actually understand our credit scores and how multiple actions will effect them. We don't necessitate a Credit Councelor, we're doing just fine contained by regards to debt. But we could use warning on what are the best steps to take to grasp the best rates in September. Anyone know any where on earth I could look to find a person who can look at our credit report and tender us objective direction on our best options.
Credit Alert - New Employer Added - Same sunshine my aim be raise - could Chase enjoy done this? A while back I posted some question regarding an issue more or less Chase lowering my limit due to me "not spending enough" during surrounded by specified amount of time. Anyway, I told them over and over that I would not give them green light to pull my credit (3 times to be exact) and that I'd newly find another card and transfer the go together.Last Wednesday, I noticed that they made the ruling to increase the limit support to where it be. Today, I noticed that I have a credit alert stating that I had a contemporary employer, "EMPLOYER" - that was adjectives the info, no address or anything. Could Chase have done this to gain access to my credit report (w/o acquaintance or consent)? If so, is that legal?I haven't applied for credit within over a month and there be no inquiries added to the alerts.
Credit Beauru info?? Can someone please give me an address or Customer # to the credit beauru? I just this minute had someone widen an acct that is not me!! I also own n address on my credit report that is not mine. It's such a stress, can somone give a hand me w/ this info.I need to contact them immediatly!Thanks a bunch. I live surrounded by Houston, tx, I don't know if ya'll needed that also.
Credit Bureau's and an unpaid State Tax Lein?!?!?!?!? Okay, I am in the process of purchasing a home cosigning near my parents. We were supposed to close subsequent week, but the underwriter came put a bet on and said the was a discrepency on my parents credit report. They hold an unpaid tax lein from 1995 that they be not aware of. The underwriter need some sort of resolution on this beforehand the loan can go through. Any fast fixes?...
Credit Card Activation? If I get a credit card and don't elicit it, will it cancel itself out after a indubitable amount of time and If it's not activated will it show up on my credit report?
Credit Card Activation? If I get a credit card and don't elicit it, will it cancel itself out after a particular amount of time and will the unactivated card show up on my credit report?
Credit card application denied? i tried to apply an american express credit card at applyclear.com and my application was denied, 2 months ago i requested i requested credit procession increase from bank of america and it be denied and i applied a second credit card in guard of amrica it was denied as all right, are these things ruin my credit report?
Credit card beside other those credit? my girlfriend just open a capital one credit card she have a good credit win and credit report. On the other hand, my credit is not so worthy and my FICO is about 500. She be able to grasp me a credit card under her wherewithal one account (but the credit cut back is split between us)Does this help me contained by any way? does it report to the credit bureaus?
High Quality Content by WIKIPEDIA articles All materials change their size when subjected to a temperature change as long as the pressure is held constant. In the special case of solid materials, the pressure does not appreciably affect the size of an object, and so for solids, it usually not necessary to specify that the pressure be held constant. The coefficient of thermal expansion describes how the size of an object changes with a change in temperature. Specifically, it measures the fractional change in volume per degree change in temperature at a constant pressure. The volumetric thermal expansion coefficient is the most basic thermal expansion coefficient. All substances expand or contract when their temperature changes, and the expansion or contraction always occurs in all directions. Substances that expand at the same rate in any direction are called isotropic. Unlike gases or liquids, solid materials tend to keep their shape. For solids, one might only be concerned with the change along a length, or over some area. Expansion coefficients are specially defined for these cases, and they are known as the linear and area expansion coefficients. Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 76 Publication Date: 2010/09/29 Language: English Dimensions: 5.98 x 9.01 x 0.18 inches
High Quality Content by WIKIPEDIA articles High Quality Content by WIKIPEDIA articles In population genetics, Sewall Wrights coefficient of relationship or coefficient of relatedness or relatedness or r is defined as 2 times the coefficient of kinship. The coefficient of kinship is defined as the probability that the alleles at a particular locus chosen at random from two individuals are identical by descent. For example, in a diploid species (e.g. all mammals), the coefficient of relationship between parent and offspring is 0.5, meaning half of the offsprings genome comes from that parent. Or, more precisely said, half the genes are identical by descent. Some other relatedness examples: (assuming no consanguinity, for diploid species unless noted otherwis). Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 80 Publication Date: 2010/07/09 Language: English Dimensions: 5.98 x 9.01 x 0.19 inches
In mathematics, the differential coefficient of a function f(x) is what is now called its derivative df(x)/dx, the (not necessarily constant) multiplicative factor or coefficient of the differential dx in the differential df(x). A coefficient is usually a constant quantity, but the differential coefficient of f is a constant function only if f is a linear function. When f is not lineive#Differen, hence, the modern term, derivative. Early editions of Silvanus P. Thompsons Calculus Made Easy use the older term. Martin Gardner lets the first use of differential coefficient stand, along with Thompsons criticism of the term as a needlessly obscure phrase that should not intimidate students, and substitutes derivative for the remainder of the book. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 74 Publication Date: 2010/08/04 Language: English Dimensions: 6.00 x 9.02 x 0.18 inches
High Quality Content by WIKIPEDIA articles The pressure coefficient is a dimensionless number which describes the relative pressures throughout a flow field in fluid dynamics. The pressure coefficient is used in aerodynamics and hydrodynamics. Every point in a fluid flow field has its own unique pressure coefficient, Cp. In many situations in aerodynamics and hydrodynamics, the pressure coefficient at a point near a body is independent of body size. Consequently an engineering model can be tested in a wind tunnel or water tunnel, pressure coefficients can be determined at critical locations around the model, and these pressure coefficients can be used with confidence to predict the fluid pressure at those critical locations around a fullsize aircraft or boat. The pressure coefficient is a very useful parameter for studying the flow of incompressible fluids such as water, and also the lowspeed flow of compressible fluids such as air. Author: Surhone, Lambert M./ Tennoe, Mariam T./ Henssonow, Susan F. Binding Type: Paperback Number of Pages: 108 Publication Date: 2010/09/30 Language: English Dimensions: 5.98 x 9.01 x 0.25 inches
High Quality Content by WIKIPEDIA articles The coefficient of performance or COP, of a heat pump is the ratio of the change in heat at the output to the supplied work. The COP for heating and cooling are thus different, because the heat reservoir of interest is different. When one is interested in how well a machine cools, the COP is the ratio of the heat removed from the cold reservoir to input work. However, for heating, the COP is the ratio of the heat removed from the cold reservoir plus the heat added to the hot reservoir by the input work. Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 68 Publication Date: 2010/12/23 Language: English Dimensions: 6.00 x 9.02 x 0.16 inches
High Quality Content by WIKIPEDIA articles In statistics, standardized coefficients or beta coefficients are the estimates resulting from an analysis performed on variables that have been standardized so that they have variances of 1. This is usually done to answer the question of which of the independent variables have a greater effect on the dependent variable in a multiple regression analysis, when the variables are measured in different units of measurement (for example, income measured in dollars and family size measured in number of individuals). Before fitting the multiple regression equation, all variables (independent and dependent) can be standardized by subtracting the mean and dividing by the standard deviation. The standardized regression coefficients, then, represent the change in terms of standard deviations in the dependent variable that result from a change of one standard deviation in an independent variable. Some statistical software packages like PSPP/SPSS report them automatically, labeling them Beta while the ordinary unstandarized coefficients are labeled B. Others, like DAP/SAS, provide them as an option and label them Standardized Coefficient. Author: Surhone, Lambert M./ Tennoe, Mariam T./ Henssonow, Susan F. Binding Type: Paperback Number of Pages: 72 Publication Date: 2010/08/14 Language: English Dimensions: 6.00 x 9.02 x 0.17 inches
The heat transfer coefficient, in thermodynamics and in mechanical and chemical engineering, is used in calculating the heat transfer, typically by convection or phase change between a fluid and a solid: From the above equation, the heat transfer coefficient is the proportionality coefficient between the heat flux, Q/, and the thermodynamic driving force for the flow of heat. The heat transfer coefficient has SI units in watts per meter squaredkelvin. Heat transfer coefficient is the inverse of thermal insulance. There are numerous methods for calculating the heat transfer coefficient in different heat transfer modes, different fluids, flow regimes, and under different thermohydraulic conditions. Often it can be estimated by dividing the thermal conductivity of the convection fluid by a length scale. The heat transfer coefficient is often calculated from the Nusselt number. Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 82 Publication Date: 2009/11/24 Language: English Dimensions: 5.98 x 9.01 x 0.19 inches
This dissertation extends spline smoothing methods to additive coefficient models. The computational approach employs a novel combination of Kalman filtering and backfitting methodology. The overall computational effort required to evaluate the estimator is O(Nd), with d the number of effect modifying variables and N the sample size. It also develops an algorithm for computing the generalized crossvalidation criterion for selection of smoothing parameters that can be accomplished in concert with iterative evaluation of the coefficient function estimators. Bayesian confidence intervals for each coefficient function are provided as part of the estimation algorithm. Author: Yang, Hongling Binding Type: Paperback Number of Pages: 100 Publication Date: 2011/09/03 Language: English Dimensions: 9.69 x 7.44 x 0.21 inches
Ultra Copper maximum Temperature RTV Silicone is perfect for the high demands of motorcycle and ATV racing. Highest operating temperatures for two and four stroke high-performance engines. The most advanced, high temp RTV silicone gasket available. Sensor-safe, low odor, no corrosive and superior adhesion. Three times more oil resistant than conventional silicones; eight times more flexible than cut gaskets. Temperature range -75�F to 700�F (-59�C to 371�C) intermittent. The best silicone for exhaust pipes, exhaust manifolds, and other areas subject to high heat. Perfect for the high demands of motorcycle and ATV racing. The most advanced, high temp RTV silicone gasket available. Three times more oil resistant than conventional silicones; eight times more flexible than cut gaskets. The best silicone for exhaust pipes, exhaust manifolds, and other areas subject to high heat.
Our cables are constructed from the highest quality materials to ensure that you get the best connection possible every time. This temperature sensor is designed to work with your iCharger - its magnetic sensor makes it perfect for monitoring NiMH or NiCd batteries.SpecificationsInput Connector: Male 3-pin JST-XHWire Type: 22 AWG SiliconeLength: 12"iCharger Part Number: TW-2 Color: Black
Very High Temperature Heater Hose 1/2"Blu Vht Silicone Heater Hose25' Silicone heater hose provides much greater temperatrure range and service life than standard EPDM rubber heater hose. Temperature rated to 350F 2-ply fabric reinforced Resistant to: coolants, heat, cold, ozone, saltwater 7-year warranty
Clustering is a phenomenon commonly observed across social science researchstudents are clustered in classrooms, individuals in households, and companies within industrial sectors, to name but a few examples. This book presents an elementary and systematic introduction to modeling of betweencluster variation, how results are best interpreted, and computational methods for estimation. The book addresses many important issues in the social sciences that can be best described in terms of variation sources and patterns, such as temporal, betweenperson, and geographical variation. By providing a balanced presentation of the advantages and limitations of these methods, the author has provided an introduction to the subject that will be of great utility to statisticians and students concentrating on social science data analysis. Author: Longford, Nicholas T. Series Title: Oxford Statistical Science Series Series Number: 11 Binding Type: Hardcover Number of Pages: 288 Publication Date: 1993/01/01 Language: English Dimensions: 9.46 x 6.42 x 1.00 inches
Threshold Voltage Diode Reword this for me please?
"A diode normally allows current to flow in only one direction and has a certain threshold, known as the forward break over, that determines how much current is required before the diode will pass it on. In silicon-based items such as processors and memory chips, the forward break over voltage is approximately 0.6 volts. By taking advantage of the unique properties of a diode, a ROM chip can send a charge that is above the forward break over down the appropriate column with the selected row grounded to connect at a specific cell. If a diode is present at that cell, the charge will be conducted through to the ground, and, under the binary system, the cell will be read as being "on" (a value of 1). The neat part of ROM is that if the cell's value is 0, there is no diode at that intersection to connect the column and row. So the charge on the column does not get transferred to the row. "
Help will be greatly appreciated thanks! )
Nothing else needs changing except for "The neat part of ROM is that if the cell's value ..." - change this to "The useful aspect of ROM is that.." and change the full stop there to a semicolon, minus the 'so'. The final sentence would then read:
"The useful aspect of ROM is that if the cell's value is 0, there is no diode at that intersection to connect the column and row; the charge on the column does not get transferred to the row."
A nonlinear relation between current and voltage for schottky resonant tunneling diode is used. A general form of equation similar to VanDer Pol equation is obtained. A Resonant tunneling diode(RTD) has a negative differential resistance that means when the voltage increases the current decreases. This property is very useful for oscillators manufacture. Nonlinear transmission lines is considered to show that it canbe used in oscillators and to show that it can reshape the sinusoidal signals to othershapes by using OrCad and mathematica programming. Author: ElKhozondar, Hala J./ ElKhozondar, Rifa J./ Abo Ireban, Ibtisam Binding Type: Paperback Number of Pages: 80 Publication Date: 2011/07/12 Language: English Dimensions: 9.02 x 5.98 x 0.19 inches
High Quality Content by WIKIPEDIA articles A voltage doubler is an electric circuit with an AC input and a DC output of roughly twice the peak input voltage. They are a variety of voltage multiplier circuit and are often, but not always, a single stage of a general form of such circuits. The term is usually applied to circuits consisting of rectifying diodes and capacitors only, other means of doubling voltages are not included.The Villard circuit consists simply of a capacitor and a diode. While it has the great benefit of simplicity, its output has very poor ripple characteristics. Essentially, the circuit is a diode clamp circuit. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 68 Publication Date: 2010/07/14 Language: English Dimensions: 6.00 x 9.00 x 0.16 inches
DoubleMolded Plastic Housing. HighContrast LCD Display. CATIII Rated. Voltage DC: Max Range 600 V Accuracy: +/ 0.5. Voltage AC: Max Range 600 V Accuracy: +/ 1.2. Current DC: Max Range 10 A Accuracy: +/ 2.5. Resistance: 2 MO Accuracy: 0.8. Diode Check. Continuity Test. Accessories Included: Test Leads 9V Battery. Dimensions: 5.91 H x 2.76 W x 1.89 D.
2 in 1 LAN Tester and Multimeter with Voltage, Current, Resistance, Continuity, and Diode Tester Tests Pin Configuration for 10 Base-T, 10 Base-2, RJ45/RJ11, 356A, TIA-569A/568B and Token Ring Cable Remotely Test Cables Up to 330 Yards Away Test Ground Wire Measure DC/AC Voltage, DC/AC Current, Resistance, Continuity, and Diode DC Voltage: Max Range 600 V, Accuracy +/- 0.5% AC Voltage: Max Range 600 V, Accuracy +/- 1.2% DC Current: Max Range 200 mA, Accuracy +/- 1.2% AC Current: Max Range 200 mA, Accuracy +/- 2.0% Resistance: Max Range 20 MO, Accuracy +/- 0.8% Continuity Test: Beeps If Less Than 100 O Accessories Included: Test Leads, LANtest Remote Terminator, 9V Battery, Carrying Case Dimensions: 6.38" H x 2.93" W x 1.73" D Weight: 10.86 oz.
In this book, the design of InGaN LDs structures including multi quantum wells (MQWs) active region device are described and investigated by integrated system engineering technology computer aided design (ISE TCAD) device simulator. The parameters of the LDs structures are varied and optimized for high performance. This optimization study involves aspects such as thickness of active region, doping, thickness of stopper layer region, thickness of quantum wells and quantum barriers, number of quantum wells and several approaches to improve and achieve high efficiency, low threshold current and high output power of InGaN LDs. The basic LDs structures treated here are FabryPerot type InGaN double heterostructure (DH), separate confinement heterostructure (SCH) and multi quantum wells (MQWs).High performance LD has been obtained by using multi quantum wells incorporated with the optimized parameters. The lowest threshold current, higher external quantum efficiency and characteristic temperature are obtained when the number of InGaN well layers is two, at our laser emission wavelength of 415 nm, which is related to the problem of inhomogeneous carrier. Author: Thahab, Sabah Binding Type: Paperback Number of Pages: 232 Publication Date: 2011/01/31 Language: English Dimensions: 5.98 x 9.00 x 0.53 inches
Tests Pin Configuration for 10 BaseT 10 Base2 RJ45/RJ11 356A TIA569A/568B and Token Ring Cable. Remotely Test Cables Up to 330 Yards Away. Test Ground Wire. Measure DC/AC Voltage DC/AC Current Resistance Continuity and Diode. DC Voltage: Max Range 600 V Accuracy +/ 0.5. AC Voltage: Max Range 600 V Accuracy +/ 1.2. DC Current: Max Range 200 mA Accuracy +/ 1.2. AC Current: Max Range 200 mA Accuracy +/ 2.0. Resistance: Max Range 20 MO Accuracy +/ 0.8. Continuity Test: Beeps If Less Than 100 O. Accessories Included: Test Leads LANtest Remote Terminator 9V Battery Carrying Case. Dimensions: 6.38 H x 2.93 W x 1.73 D.
Battery requirements 1. Single-cell lithium-ion and lithium polymer batteries Today's lithium battery to its maximum rated capacity, its voltage is typically between 4.1V to 4.2V. The current market is being sold, the newer, higher capacity battery, its voltage range between 4.3V to 4.4V. Typical prismatic lithium-ion (Li +) and lithium polymer (Li-Poly) battery capacity of 600mAh to 1400mAh. Pairs of Li + and Li-Poly battery, the preferred charge curve is starting from the constant current charging and continued until the battery voltage reaches the rated voltage. Then, the voltage across the Olympus PS-BLM1 battery charger regulated. These two methods constitute a constant current regulator (CC) constant voltage (CV) charging. Therefore, this type of charger is usually referred to as CCCV charger. CCCV charger into the CV mode, the battery charge current begin to decline. The use of a 0.5C to 1.5C charging rate of a typical charging, then when the battery reaches its full capacity of 80% to 90%, the charger from the CC mode to CV mode. Chargers Once CV charge mode, the battery current is monitored; When the current minimum threshold (a few tens of mA or mA), the charger to terminate charging. A typical lithium battery charging curve shown in Figure 2. Figure 2. The use of CCCV of Li + battery charger when the typical curve Figure 1 shows the USB voltage drop of indicators can be seen that the downstream hub port power supply voltage low-power ports do not have enough margin, it is difficult to charge the battery to 4.2V. Charging path of a small amount of extra resistance there will be disruption to normal charging. Li + and Li-Poly batteries should be charged under the appropriate temperature. Manufacturer's recommended maximum charging temperature of typically +45 ° C to +55 ° C between the maximum allowable discharge temperature can be higher than 10 ° C or so. Materials used in these batteries, the chemical nature of the very lively, if the battery temperature exceeds +70 ° C, combustion will occur. Li-ion battery charger should have thermal shutdown circuit monitors the battery temperature, if the battery temperature exceeds the manufacturer's recommended maximum charging temperature, then the termination charge. 2. Nickel-metal hydride batteries (NiMH) NiMH batteries should be heavier than lithium batteries, their energy density is lower than the lithium batteries. All along, NiMH batteries are cheaper than lithium batteries, but recently the price difference between the two is narrowing. NiMH batteries have a standard size, in most applications can be a direct replacement for alkaline batteries. Each section of the battery nominal voltage of 1.2V, will reach full 1.5V. Commonly used constant-current source for NiMH batteries. When you reach the full state, exothermic chemical reaction will occur and lead to the battery temperature rises, the battery terminal voltage reduction. Can detect the battery temperature increase rate or a negative voltage change rate, and is used to terminate the charge. The charge termination methods are known as dT / dt and-?V. Charging rate is very low, dT / dt and-?V less obvious, it is difficult to detect accurately. Overcharge the battery began to enter the state, dT / dt and-?V response to starting to show. At this point if it continues to charge, will damage the battery. Termination detection in the charge rate is greater than C / 3 than when a low charge rate when the much easier. Temperature rise rate of about 1 ° C / min,-?V to respond to a low charge rate than when the more obvious. After fast charge, suggested that a smaller current recharge period of time to completely sufficient battery (supplement charge). Complement the charging end of the period following the introduction of C/20 or C/30 trickle charge current to compensate for the self-discharge effect, so that the Olympus E-420 battery remained at full status. Figure 3 shows the DS2712 NiMH charger with NiMH batteries (having been a part of the electric charge) for charging the battery voltage curve. In the diagram above a curve of the data is being poured into the battery charge current when the access to, the following data Natiao curve when the measured current is cut off. In the DS2712, this voltage difference is used to distinguish between NiMH batteries and alkaline batteries. If you detect alkaline batteries, then the DS2712 will not be charging it. Figure 3. Using DS2712 controller NiMH rechargeable battery Switching and Linear USB 2.0 specification allows low-power port to provide the maximum current of 100mA, high-power port to provide the maximum current of 500mA. If using a linear adjustment of the device to adjust the battery charge current, which is the largest available charge current. Linear adjustment device (Figure 4) power dissipation is P = VQ x IBATT. This will result in adjustment of tube heating, you may need to install the radiator to prevent overheating. Figure 4. Power is equal to the battery charging current multiplied by the adjustment of the voltage across the tube Corresponds to 5V nominal input voltage, to adjust the device's power consumption and battery type, number and battery voltage. Figure 5. Using 5.0V voltage of the NiMH battery charging USB port, the linear adjustment of the power consumption of the device Nominal input voltage of 5.0V, the linear USB battery charger for NiMH battery power consumption results in Figure 5. Pairs of single-cell charging, the efficiency of a linear charger is only 30%; pairs of two batteries, the efficiency is 60%. With 500mA current on a single battery, the power will be up to 2W. This power is usually need to increase heat sink. Power consumption of 2W, the thermal resistance of +20 ° C / W radiator at +25 ° C ambient temperature will be heated to about +65 ° C, to obtain full capacity performance, but also the need to assist their cooling air flow . Enclosed space at a static air, the temperature will be higher. Based switching regulator charger to resolve several issues. First of all, when compared with the linear charger can be at a faster rate, larger current on the battery charge (Figure 6). Due to lower power consumption, less heat and thermal management issues are also reduced. At the same time, due to lower operating temperature, chargers and more reliable. Figure 6. On a single NiMH battery, the linear charger and switch charger charging at different times Figure 6 in the calculations and assumptions are based on the following conditions: high-power USB port maximum allowable current (500mA) for about 90% of the charge; switching regulator use of non-synchronous rectification buck converter with a 77% efficiency. Circuit examples Figure 7 shows the circuit is used for a single NiMH battery switch-mode buck regulator. It uses DS2712 charge controller regulating charge current and charge termination. Charge controller monitors the temperature, battery voltage and battery current. If the temperature exceeds +45 ° C or below 0 ° C, controller will not charge the battery. Figure 7. USB ports on a single fast-charging NiMH battery schematic Shown in figure 7, Q1 is the step-down charger switching power transistor; L1 is the filter inductance; D1 is a freewheeling diode, or rectifier. Input capacitance C1 as 10?F, low ESR ceramic filter capacitor. Using tantalum capacitors or other electrolytic capacitor C1 will replace the charger performance degradation. R7 is the current regulator sense amplifier sense resistor. DS2712 reference voltage of 0.125V, and with 24mV hysteresis. Through the provision of closed-loop CSOUT, switch-mode current control. CC1 to Q2 charge control pin down when the gate so that it can Q1's gate drive. Q1 and Q2 are low-Vt (gate - source threshold voltage) of the pMOSFET. CC1 and CSOUT are low, Q2's drain - source voltage will be slightly larger than Vt. The voltage and the forward voltage drop constitutes a CSOUT gate switching voltage of Q1. CC1 is low, the starting current closed-loop control. Figure 8 shows the waveforms when the start switch. The top of the waveform is 0.125? (the voltage across sense resistor, the bottom waveform is the Q1 drain to the GND voltage. The beginning, when Q1 opens (CC1 and CSOUT are low), the inductor current is upwards. When the current increased so large that the voltage across the sense resistor to 0.125V when, CSOUT becomes high, the switch off. Since then, the inductor current began to decline, until the voltage across the sense resistor to approximately 0.1V, CSOUT also becomes low power level. as long as CC1 is low, the process continues. Figure 8. USB NiMH charger to start the waveform DS2712's internal state machine controls the CC1 work. Charging the beginning, DS2712 first state of the battery tests to ensure that the battery voltage is between 1.0V to 1.65V and confirmed that the temperature in the 0 ° C to +45 ° C between. If the voltage is below 1.0V, DS2712 will be 0.125 of the duty cycle down CC1, slow battery charging, to prevent damage to the battery. Once the battery voltage exceeds 1.0V, the state machine to fast charge mode. Fast charge duty cycle of 31/32 hours, or about 97%. "Skip" within the margins of the battery impedance testing to ensure that no errors into a high-impedance battery charger (such as alkaline batteries) to charge. Detected after-2mV of-?V, fast-charge end. If not detected-?V, will continue to fast-charge, until the fast charge timer timeout, or to detect over-temperature or over-voltage fault condition (including the impedance of failure) so far. Fast-Charge completed (due to-?V, or fast-charge timer timeout), after, DS2712 into the regular complement the charge mode, the duty cycle of 12.5%, duration of fast-charge from time to time established by half. Supplement charge is completed, the charger into the maintenance mode, the duty cycle of 1 / 64, until the Olympus E-410 battery is removed or re-power. As shown in Figure 7 using high-power USB port on the charger and 2100mAh NiMH battery, the fast charge time for a little over 2 hours, about 3 hours to complete, including the full complement, including charging the charging process. Lessons from the port current of 420mA. If you need to host enumeration process and the need to enable high-current operation, R9 and ground in series between an open-drain nMOSFET. If the MOSFET turn-off, then the TMR floating empty, DS2712 into a pending state. Summary For small consumer electronics devices in terms of battery charging, USB port is an economic and practical power. To fully comply with USB 2.0 specifications, connected to the USB port of the load must be able to host two-way communication. The load must also comply with power management requirements, including low-power mode, and easy to determine when the host needs to port a means of drawing large currents. Although some compatible system to adapt to most of the USB host, but sometimes unexpected results. Only a good understanding of the USB specification requirements and expectations of the load can be regulated when it comes to compatibility between the complexity and load to achieve better balance.
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