Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
High Quality Content by WIKIPEDIA articles! A QFP or Quad Flat Package is an integrated circuit package with leads extending from each of the four sides. It is used primarily for surface mounting (SMD); socketing is rare, and hole mounting is not possible. There are versions having from 32 to 304 pins with a pitch ranging from 0.4 to 1.0 mm. Special cases include LQFP (Low profile QFP) and TQFP (Thin QFP). The package type became common in Europe and US during the early nineties, but QFP components have been used in Japanese consumer electronics since the seventies, most often mixed with hole mounted, and sometimes socketed, components on the same printed circuit board. A package related to QFP is PLCC which is similar but has pins with...
ISBN: 978-6-1313-9672-4
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Книга по требованию
Дата выхода: июль 2011
Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
High Quality Content by WIKIPEDIA articles! Quad Electroacoustics is a British manufacturer of hi-fi equipment, based in Huntingdon, England. The company was founded by Peter J. Walker in 1936 in London, and was initially called S.P. Fidelity Sound Systems. In 1936 the name was changed to the Acoustical Manufacturing Co. Ltd. The company moved from London to Huntingdon in 1941 after being bombed out of London in World War II. The company initially produced only public address equipment but after the war they began to produce equipment designed for use in the home as a result of the rising demand for high quality domestic sound reproduction. Within a few years the company had transitioned almost entirely to manufacturing models for the...
ISBN: 978-6-1314-2397-0
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Книга по требованию
Дата выхода: июль 2011
Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
High Quality Content by WIKIPEDIA articles! Quad band (also known as quad-band or quadband) literally means four bands. Most people come across the term when it is used to describe a mobile phone supporting four frequency bands. Having more than one frequency in one device is useful to enable roaming between different countries that peg the allowed transmission frequency at different values or to allow a better coverage in the same country. GSM frequency bands The GSM standard originated in Europe, where mobile phones occupy two frequency bands: one in the 900 MHz range and one in the 1800 MHz range. When GSM technology crossed the Atlantic to the Americas, it was impossible to reuse the same European frequency bands since those had...
ISBN: 978-6-1305-0438-0
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Дата выхода: июль 2011
Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
High Quality Content by WIKIPEDIA articles! Quadrature amplitude modulation (QAM) is both an analog and a digital modulation scheme. It conveys two analog message signals, or two digital bit streams, by changing (modulating) the amplitudes of two carrier waves, using the amplitude-shift keying (ASK) digital modulation scheme or amplitude modulation (AM) analog modulation scheme. These two waves, usually sinusoids, are out of phase with each other by 90° and are thus called quadrature carriers or quadrature components — hence the name of the scheme. The modulated waves are summed, and the resulting waveform is a combination of both phase-shift keying (PSK) and amplitude-shift keying (ASK), or in the analog case of phase modulation (PM)...
ISBN: 978-6-1313-8778-4
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Книга по требованию
Дата выхода: июль 2011
Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
High Quality Content by WIKIPEDIA articles! The combination of quality control and genetic algorithms led to novel solutions of complex quality control design and optimization problems. Quality control is a set of activities intended to ensure that quality requirements are actually being met. Quality is the degree to which a set of inherent characteristics fulfils a need or expectation that is stated, general implied or obligatory. Genetic algorithms are search algorithms, based on the mechanics of natural selection and natural genetics. Alternative quality control (QC) procedures can be applied on a process to test statistically the null hypothesis, that the process conforms to the quality requirements, therefore that the process is in...
ISBN: 978-6-1303-4106-0
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Дата выхода: июль 2011
Qualitat wurde schon im Altertum z.B. von Baumeistern abverlangt. Seitdem hat sich der Begriff verandert, wurde erweitert, konkretisiert und auf neue Bereiche angewendet. Ziel des QM ist es, Kosten in der Produktion zu senken und Produkte zu verbessern. Eine Universitat bietet zwei Produkte an: Forschung und Lehre. Die Kunden einer Universitat sind Studierende, die von Forschung und Lehre profitieren wollen sowie Industrieunternehmen, die hervorragend ausgebildete Nachwuchskrafte suchen und somit an der Qualitat von Lehre und Forschung interessiert sind. Ziel dieser Arbeit ist es zu evaluieren, ob und wie ein Qualitatsmanagementsystem in einem universitaren Reinraum eingefuhrt und etabliert werden kann. Es wird untersucht, welche...
ISBN: 978-3-6390-7506-9
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Книга по требованию
Дата выхода: июль 2011
As the world is transforming into the knowledge based society, the capacity and competency of the human resources are the major concerns. Moreover, the great leap forward of the technology has demanded competent technical human resource. More precisely, the technical literacy has become the basic needs of the society. Visualizing this essence, almost all countries are now focusing in the engineering education and the reform agenda in engineering education is in the high priority. As a matter of fact, high skilled engineering human resources have become the driving force for the development of the country and prosperity of the people in every country. This work is an attempt to explore issues and strategies of engineering education to...
ISBN: 978-3-8433-7678-5
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Книга по требованию
Дата выхода: июль 2011
The applications of powder metals have long been thought to rapidly increase due to low total production costs, but difficulties to guarantee mechanical or dimensional properties have slowed the growth down. To overcome these obstacles, the quality of the powder metallurgical process must be improved. Quality improvements of any process requires work, and the powder metallurgical processes are no different. Factual evidence makes the work much more efficient, and statistical methods are developed to provide facts of the object under study. Here, statistical methods as well as metallurgical investigations are used to find potentials for improving sinter steel products. The work has studied the iron phosphorous system, as well as water...
ISBN: 978-3-6391-9869-0
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Книга по требованию
Дата выхода: июль 2011
Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
High Quality Content by WIKIPEDIA articles! Quality Bicycle Products is the largest distributor of bicycle parts and accessories in the bicycle industry, with revenues of $150 million in 2008. In addition to wholesaling bicycles and components from other manufacturers, QBP owns and manufactures several brands of its own. QBP also works to make a positive contribution to its community through cycling advocacy and green building. QBP was founded by Steve Flagg in 1981 in St. Paul, MN, and orders were initially filled by just him and his wife Mary. QBP saw significant growth when it began supplying mountain bike replacement parts, hitting $1 million by 1985. QBP now supplies about 5000 bike dealers and has recently branched out into...
ISBN: 978-6-1313-8371-7
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Книга по требованию
Дата выхода: июль 2011
Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
High Quality Content by WIKIPEDIA articles! Quality assurance, or QA for short, refers to planned and systematic production processes that provide confidence in a product's suitability for its intended purpose. Refer to the definition by Merriam-Webster for further information. It is a set of activities intended to ensure that products (goods and/or services) satisfy customer requirements in a systematic, reliable fashion. QA cannot absolutely guarantee the production of quality products, unfortunately, but makes this more likely. Two key principles characterise QA: "fit for purpose" (the product should be suitable for the intended purpose) and "right first time" (mistakes should be eliminated). QA includes regulation of the quality of...
ISBN: 978-6-1303-1891-8
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Книга по требованию
Дата выхода: июль 2011
Retinal image formation through the optics of the human eye is the first step in the complex process of vision. Imperfections in the optics of the human eye, including aberrations and scatter, degrade retinal image quality. Determination of the contribution of ocular aberrations and light scatter to decreased retinal image quality, particularly in aging and diseased eyes, is essential to evaluate optical quality of the eye. Correction of ocular aberrations can enable acquiring retinal images with high spatial resolution. An optical imaging system has been established that provides for combined measurements of ocular aberrations and light scatter. Wavefront sensing was performed with a Shack-Hartmann aberrometer to determine the wavefront...
ISBN: 978-3-6390-5067-7
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Книга по требованию
Дата выхода: июль 2011
Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
High Quality Content by WIKIPEDIA articles! In order to quantize a gauge theory, like for example Yang-Mills theory, Chern-Simons or BF model, one method is to perform a gauge fixing. This is done in the BRST and Batalin-Vilkovisky formulation. Another is to factor out the symmetry by dispensing with vector potentials altogether (they're not physically observable anyway) and work directly with Wilson loops, Wilson lines contracted with other charged fields at its endpoints and spin networks. Older approaches to quantization for Abelian models use the Gupta-Bleuler formalism with a "semi-Hilbert space" with an indefinite sesquilinear form. However, it is much more elegant to just work with the quotient space of vector field configurations...
ISBN: 978-6-1303-5289-9
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Книга по требованию
Дата выхода: июль 2011
Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
High Quality Content by WIKIPEDIA articles! A Quantum Digital Signature (QDS) refers to the quantum mechanical equivalent of either a classical digital signature or, more generally, a handwritten signature on a paper document. Like a handwritten signature, a digital signature is used to protect a document, such as a digital contract, against forgery by another party or by one of the participating parties. As e-commerce has become more important in society, the need to certify the origin of exchanged information has arisen. Modern digital signatures enhance security based on the difficulty of solving a mathematical problem, such as finding the factors of large numbers (as used in the RSA algorithm). Unfortunately, the task of solving...
ISBN: 978-6-1303-5277-6
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Книга по требованию
Дата выхода: июль 2011
As CMOS technology continuous to be aggressively scaled, it approaches a point where classical physics is insufficient to explain the behavior of a MOSFET. At this classical physics limit, a quantum mechanical model becomes necessary to provide thorough assessment of the device performance and scaling. This book describes advanced modeling of nanoscale bulk MOSFETs incorporating critical quantum mechanical effects such as gate direct tunneling and energy quantization of carriers. The models derived here are used to project MOSFET scaling limits. These limits of bulk MOSFETs are predicted according to various criteria, including circuit power and delay, device leakage current and the system uniformity requirement. Tunneling and...
ISBN: 978-3-8364-6183-2
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Книга по требованию
Дата выхода: июль 2011
Magnetic Resonance Imaging (MRI) and diffusion weighted MRI non-invasively deliver anatomical and even microstructural parameters of the living human brain with ever increasing resolution and detail. This book addresses current main challenges in detecting structural changes in the brain and diagnosing Alzheimer's Disease (AD) at early stages using imaging markers. An automated method for individual patient atrophy assessment on a macroscopic level and a Diffusion Tensor Imaging (DTI) based approach to fiber integrity assessment on a microscopic level are introduced. Diffusion phantoms are presented that allow the controlled investigation of quantification methods under PV conditions. A comprehensive set of in-vivo, in-vitro, and...
ISBN: 978-3-8381-1876-5
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Книга по требованию
Дата выхода: июль 2011
Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
High Quality Content by WIKIPEDIA articles! Quantum superposition is the fundamental law of quantum mechanics. It defines the collection of all possible states that an object can have. In probability theory, every possible event has a real number between zero and one associated to it, the probability, which gives the chance that it happens. If you want to know the probability of two independent events both occurring, for example the probability that it will rain and also that the stock market will go up, you multiply the probability for each event. If there is a 0.3 chance that it will rain and a 0.6 chance that the market will go up, there is a 0.18 chance that both will happen. Данное издание не является...
ISBN: 978-6-1303-5293-6
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Книга по требованию
Дата выхода: июль 2011
Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
High Quality Content by WIKIPEDIA articles! Quantum electrodynamics (QED) is the relativistic quantum field theory of electrodynamics. QED was developed by a number of physicists, beginning in the late 1920s. It basically describes how light and matter interact. QED mathematically describes all phenomena involving electrically charged particles interacting by means of exchange of photons. Physicist Richard Feynman has called it "the jewel of physics" for its extremely accurate predictions of quantities like the anomalous magnetic moment of the electron, and the Lamb shift of the energy levels of hydrogen. In technical terms, QED can be described as a perturbation theory of the electromagnetic quantum vacuum. Данное издание...
ISBN: 978-6-1303-5282-0
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Книга по требованию
Дата выхода: июль 2011
Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
High Quality Content by WIKIPEDIA articles! Quantum fingerprinting is a proposed technique that uses a quantum computer to generate a string with a similar function to the cryptographic hash function. If unconditional guarantees of security are needed, and if it is impractical for the communicating parties to arrange to share a secret that can be used in a Carter-Wegman MAC, this technique might one day be faster than classical techniques given a quantum computer with 5 to 10 qubits. However, these circumstances are very unusual and it is unlikely the technique will ever have a practical application; it is largely of theoretical interest. Данное издание не является оригинальным. Книга...
ISBN: 978-6-1303-5284-4
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Книга по требованию
Дата выхода: июль 2011
Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
High Quality Content by WIKIPEDIA articles! Quarter inch cartridge tape (abbreviated QIC, commonly pronounced "quick") is a magnetic tape data storage format introduced by 3M in 1972, with derivatives still in use as of 2009. QIC comes in a rugged enclosed package of aluminum and plastic that holds two tape reels driven by a single belt in direct contact with the tape. The tape was originally 1/4-inch (6.35 mm) wide and anywhere from 300 to 1,500 feet (91 to 460 m) long. Data is written to tape in linear tracks in what is called "serpentine" mode, where the tracks alternate direction by use of a head switch or step. Since the introduction of the format, QIC has been widely used and many variations exist. Данное издание не...
ISBN: 978-6-1309-5123-8
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Книга по требованию
Дата выхода: июль 2011
Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
High Quality Content by WIKIPEDIA articles! The Quarter Video Graphics Array (also known as Quarter VGA, QVGA, or qVGA) is a popular term for a computer display with 320 x 240 display resolution. QVGA displays are most often used in mobile phones, PDAs and some handheld game consoles. Often the displays are in a “portrait” orientation (i.e., taller than they are wide, as opposed to “landscape”) and are referred to as 240 x 320. The name comes from having a quarter of the 640 x 480 maximum resolution of the original IBM VGA display technology, which became a de facto industry standard in the late 1980s. QVGA is not a standard mode offered by the VGA BIOS, even though VGA and compatible chipsets support a QVGA-sized Mode X. The...
ISBN: 978-6-1314-2445-8
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Дата выхода: июль 2011
Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
High Quality Content by WIKIPEDIA articles! Autoroute 25 (or A-25, also called Autoroute Louis-H-Lafontaine in Montreal) is an Autoroute in the Lanaudiere region of Quebec. It is currently 49 km (30.4 mi) long, with a short gap which follows arterial roads in the north end of Montreal. A-25 begins at an interchange with Autoroute 20 and Route 132 in Longueuil and quickly enters the Louis Hippolyte Lafontaine Tunnel into the east end of Montreal. It is the main north-south freeway in the east end of Montreal (actually northwest-southeast but perpendicular to the St. Lawrence River). Данное издание не является оригинальным. Книга печатается по технологии...
ISBN: 978-6-1304-6821-7
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Книга по требованию
Дата выхода: июль 2011
Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
High Quality Content by WIKIPEDIA articles! Autoroute 20 is a major Quebec Autoroute, following the Saint Lawrence River through one of the more densely-populated parts of Canada, and is part of the Trans-Canada Highway. At 548 km (340.5 mi), it is the longest Autoroute in Quebec. It is one of two main links between Montreal and Quebec City; the other is the A-40. There are two sections of A-20, separated by a 82 km (51.0 mi) gap which is to be filled in 2015 (according to the Bas-Saint-Laurent plan). The length of A-20 will then be 641 km (398 mi). Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после...
ISBN: 978-6-1304-6802-6
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Дата выхода: июль 2011
Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
High Quality Content by WIKIPEDIA articles! Autoroute 15 (also called the Decarie Expressway (English) or Autoroute Decarie (French) between the Turcot and Decarie Interchanges in Montreal and the Laurentian Autoroute (English) Autoroute des Laurentides (French) north of Autoroute 40) is a highway in western Quebec, Canada. It is currently the only constructed north-south autoroute to go out of Montreal on both sides (until a new bridge is built to connect both ends of A-25). A-15 begins at the end of Interstate 87 at the United States border at Saint-Bernard-de-Lacolle to Sainte-Agathe-des-Monts with an eventual continuation beyond Mont-Tremblant. Данное издание не является оригинальным. Книга...
ISBN: 978-6-1304-6743-2
Издательство:
Книга по требованию
Дата выхода: июль 2011