This book analyses the social, cultural, technical and economic issues behind the dissimilar growth of information and communications services in countries across the world. There are dissimilarities in terms of service penetration and usage volume between countries with similar socio-economic structures. Penetration and the use of services like voice, messaging and the Internet depend on several factors. This book demonstrates that the socio-cultural aspects of language diversity, technological issues in the service delivery and economic aspects of the charging policy all have major roles to play in the penetration and usage of information and communications services. This book will enable readers from the social sciences and...
ISBN: 978-3-8433-8650-0
Издательство:
Книга по требованию
Дата выхода: июль 2011
Real-time motion-planning in autonomous vehicle navigation applications has typically referred to the on-line trajectory-planning problem to reach a designated location in minimal time. In this context, past research achievements have been subjected to three main limitations: (i) only the problem of interception (position matching) has been considered, whereas the problem of rendezvous (velocity matching) has not been rigorously investigated; (ii) obstacles have been commonly treated as moving with constant velocity as opposed to being highly maneuverable and following a priori unknown trajectories; and, (iii) mostly, structured indoor terrains have been considered. This book addresses the above drawbacks by proposing the use of...
ISBN: 978-3-8433-7458-3
Издательство:
Книга по требованию
Дата выхода: июль 2011
This thesis work deals with the design of a guidance control architecture using sliding mode control for a missile equipped with an inertial navigation system, gyroscopes and accelerometers. The navigation system specific to our system is composed of uFORS-6 fiber optic gyroscopes and quartz accelerometers. Thus, the thesis includes detailed description of Allan variance and calibration tests of each type of inertial sensors. This work concludes with simulations of different flight scenarios where the performance of the guidance system and the effect of the inertial sensor errors are analysed and discussed. In the balance of this thesis, the effects of inertial sensor error on position and attitude are also investigated. Modelling of the...
ISBN: 978-3-6392-4322-2
Издательство:
Книга по требованию
Дата выхода: июль 2011
Frederic P. Miller, Agnes F. Vandome, John McBrewster
High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Missile guidance refers to a variety of methods of guiding a missile or a guided bomb to its intended target. The missile's target accuracy is a critical factor for its effectiveness. Guidance systems improve missile accuracy by improving its "Single Shot Kill Probability" (SSKP). These guidance technologies can generally be divided up into a number of categories, with the broadest categories being "active," "passive" and "preset" guidance. Missiles and guided bombs generally use similar types of guidance system, the difference between the two being that missiles are powered by an onboard engine, whereas...
ISBN: 978-6-1335-9932-1
Издательство:
Книга по требованию
Дата выхода: июль 2011
Frederic P. Miller, Agnes F. Vandome, John McBrewster
Guitar Hero Encore: Rocks the 80s (titled Guitar Hero: Rocks the 80s in Europe)[4] is a music video game and the third installment in the popular Guitar Hero series. It was released in July 2007 in North America and Europe, and in August 2007 in Australia.Players use a guitar-shaped controller (purchased separately) to simulate playing rock music by hitting notes as they scroll towards the player. Rocks the 80s is an incremental title in the Guitar Hero series, rather than a full sequel. No changes in gameplay from Guitar Hero II have been introduced to this game. As implied by the game's title, the game features a 1980s theme, consisting of songs from the decade and playable characters, fashions, and artwork that reflect the time...
ISBN: 978-6-1307-4808-1
Издательство:
Книга по требованию
Дата выхода: июль 2011
Frederic P. Miller, Agnes F. Vandome, John McBrewster
High Quality Content by WIKIPEDIA articles! Gustav Adolf Jebsen (30 January 1884 – 20 January 1951) was a Norwegian industrialist. Jebsen finished education in machine engineering at Bergen technical school at the age of seventeen, and studied chemistry at the Technische Hochschule Hannover and the Royal Technical College of Charlottenburg. He took the doctorate in Zurich in 1905 with the thesis Zur Kenntnis der Phenoxymucobrom- und Chlorsaure als aromatische Verbindungen. From 1905 to 1906 he studied at Sorbonne. In 1906 he was hired in Sam Eyde's company Elektrokemisk. Together with Peder Farup he discovered and innovated the use of titanium dioxide as the pigment titanium white; together with the exploitation of the S derberg...
ISBN: 978-6-1340-8012-5
Издательство:
Книга по требованию
Дата выхода: июль 2011
Novel materials with high-dielectric(k) constants are rapidly gaining attention for their application as gate insulator for future MOS transistors. This book provides the basic principles underlying chemical vapor deposition (CVD) of hafnium oxide and hafnium silicate thin films for high-k application. In addition to the deposition fundamentals, the discussions in the book provide valuable insights to various chemical and physical characterization techniques that can be applied to thin films in general. This easy-to-understand and well- illustrated text is designed for both beginners as well as advanced researchers with a good introduction to the subject of high-k thin films. Данное издание не является...
ISBN: 978-3-8383-3388-5
Издательство:
Книга по требованию
Дата выхода: июль 2011
Frederic P. Miller, Agnes F. Vandome, John McBrewster
High Quality Content by WIKIPEDIA articles! Hannes Olof Gosta Alfven (born 30 May 1908 in Norrkoping, Sweden; died 2 April 1995 in Djursholm, Sweden) was a Swedish electrical engineer, plasma physicist and winner of the 1970 Nobel Prize in Physics for his work on magnetohydrodynamics (MHD). He described the class of MHD waves now known as Alfven waves. He was originally trained as an electrical power engineer and later moved to research and teaching in the fields of plasma physics and electrical engineering. Alfven made many contributions to plasma physics, including theories describing the behavior of aurorae, the Van Allen radiation belts, the effect of magnetic storms on the Earth's magnetic field, the terrestrial magnetosphere, and...
ISBN: 978-6-1326-9093-7
Издательство:
Книга по требованию
Дата выхода: июль 2011
Frederic P. Miller, Agnes F. Vandome, John McBrewster
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Harold Chestnut was an American electrical engineer, who contributed to the development of the fields of control theory and systems engineering. Harold Chestnut was born in 1918. He studied electrical engineering at MIT and received a B.S. degree in 1939 and a M.S. degree in 1940. In that same year he began a life-long career with the General Electric Company, which would last until his retirement in 1983. He married his wife Erma Ruth Callaway Chestnut in 1944 and they had three sons. Данное издание не является оригинальным. Книга печатается по...
ISBN: 978-6-1342-6707-6
Издательство:
Книга по требованию
Дата выхода: июль 2011
Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Henry Charles Beck (4 June 1902 – 18 September 1974), known as Harry Beck, was an English engineering draftsman best known for creating the present London Underground Tube map in 1931. Beck drew up the diagram in his spare time while working as an engineering draughtsman at the London Underground Signals Office. London Underground was initially sceptical of Beck's radical proposal — it was an uncommissioned spare-time project, and it was tentatively introduced to the public in a small pamphlet in 1933. It immediately became popular, and the Underground has used topological maps to illustrate the network ever since. Данное издание...
ISBN: 978-6-1329-8496-8
Издательство:
Книга по требованию
Дата выхода: июль 2011
In modernen Produktionsbetrieben werden heute hochprazise und dynamische Fertigungsanlagen verwendet, um die Stuckzeiten und damit verbundenen Kosten so gering wie moglich zu halten. Die vorliegende Arbeit beschaftigt sich mit der Neukonstruktion des gesamten Spindelstockes einer CNC gesteuerten Drehmaschine. Da der Antriebsmotor und die Spindellagerung nun eine Einheit bilden, spielt die hochgenaue und storunanfallige Erfassung der Motor- beziehungsweise Spindelposition eine wesentliche Rolle bei der Regelung des Antriebspaketes. Ziel diese Werkes ist es, nach der mechanischen und elektrischen Konstruktion des Spindelstocks, die tatsachlich erreichbare Genauigkeit der gesamten Antriebseinheit, unter Verwendung eines dafur geeigneten am...
ISBN: 978-3-6390-5689-1
Издательство:
Книга по требованию
Дата выхода: июль 2011
Plastic injection molding process is well known as the most efficient manufacturing technique for economically producing precision plastic parts with large quantities and complex geometry at low cost. This book aims to study and optimize the heat transfer process of the injection molding to obtain optimum product quality at low cost and highly production rate. The effect of cooling system on the heat transfer through the injection molding process is carried out. Also, his effect on the temperature, solidifcation and shrinkage rate of the polymer is studied. The shrinkage rate distribution of the polymer materials and the temperature distribution through the mold and the polymer are also included. Moreover, the effect of different process...
ISBN: 978-3-8433-6866-7
Издательство:
Книга по требованию
Дата выхода: июль 2011
Nanofluids are a class of fluids comprised of a base fluid with nanoparticles in a colloidal suspension. These fluids have been shown to exhibit substantially higher thermal conductivity than their corresponding base fluids. In this book the authors perform a detailed analysis of the fluid dynamic and heat transfer properties of copper oxide and aluminum oxide nanoparticles in a 60:40 ethylene glycol and water solution. The analyses employ previously developed correlations for nanofluid thermophysical, fluid dynamic and heat transfer properties. Computational models developed by the authors that predict the performance of hydronic finned tube heaters and air heating coils with nanofluids and conventional fluids are presented. The authors...
ISBN: 978-3-8383-9842-6
Издательство:
Книга по требованию
Дата выхода: июль 2011
Membrane reactors can be classified as multifunctional reactors, as different process steps (selective dosing of educts or removal of reaction products) are combined in a single unit. In a membrane reactor, chemical reaction is coupled with mass or heat transport and this requires a complete understanding of transport processes in the membrane. Typical industrial reactions like partial oxidation of hydrocarbons takes place at higher temperatures. Inorganic membranes offer the potential to be used for such reactions due to their thermal stability. However, heat and mass transport parameters of such membranes must be investigated separately and independently. This book is comprised of results obtained from the research work focused on the...
ISBN: 978-3-6392-9203-9
Издательство:
Книга по требованию
Дата выхода: июль 2011
The primary problem in concentrating phosphoric acid is due to fouling on the tube-side of the heat exchangers of the evaporators. Scaling on the heat transfer surfaces occurs because of high supersaturation of phosphoric acid liquor with respect to calcium sulfate. A review of the existing literature reveals that no information is available on heat transfer and on crystallisation fouling of phosphoric acid solutions.A large number of fouling experiments were carried out at different flow velocities, surface temperatures and concentrations to determine the mechanisms, which control deposition process. A mathematical model was developed for prediction of fouling resistance. The activation energy evaluated for the surface reaction of the...
ISBN: 978-3-8383-0636-0
Издательство:
Книга по требованию
Дата выхода: июль 2011
This book presents the details of effect of heat treatment on the structure-property relationship. Mechanical properties have been evaluated by tensile deformation carried out at room temperature. Furthermore, fractographic studies have been done by Scanning Electron Microscopy.It has been established that heattreatment has significant effect on the mechanical properties of the alloy under investigation Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.
ISBN: 978-3-8433-6071-5
Издательство:
Книга по требованию
Дата выхода: июль 2011
Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Hellmuth Walter (26 August 1900 in Wedel near Hamburg – 16 December 1980 in Upper Montclair, New Jersey) was a German engineer who pioneered research into rocket engines and gas turbines. His most noteworthy contributions were rocket motors for the Messerschmitt Me 163 and Bachem Ba 349 interceptor aircraft, JATO units used for a variety of Luftwaffe aircraft during World War II, and a revolutionary new propulsion system for submarines known as air-independent propulsion (AIP).Walter began training as a machinist in 1917 in Hamburg and in 1921 commenced studies in mechanical engineering at the Hamburg Technical Institute. He left before completing...
ISBN: 978-6-1329-6875-3
Издательство:
Книга по требованию
Дата выхода: июль 2011
Frederic P. Miller, Agnes F. Vandome, John McBrewster
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Hendrik Van Brussel is a Belgian emeritus professor of mechanical engineering of the Katholieke Universiteit Leuven, world-renowned for his research on robotics, mechatronics and holonic manufacturing systems. Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.
ISBN: 978-6-1342-6120-3
Издательство:
Книга по требованию
Дата выхода: июль 2011
Frederic P. Miller, Agnes F. Vandome, John McBrewster
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Hermann Schlichting (22 September 1907 in Balje/Elbe - 15 June 1982 in Gottingen) was a German fluid dynamics engineer. Hermann Schlichting studied from 1926 till 1930 mathematics, physics and applied mechanics at the University of Jena, Vienne and Gottingen. In 1930 he wrote his PhD in Gottingen titled Uber das ebene Windschattenproblem and also in the same year passed the state examination as teacher for higher mathematics and physics. His meeting with Ludwig Prandtl had a long lasting effect on him. He worked from 1931 till 1935 at the Kaiser Wilhelm Institute for Flow Research in Gottingen. His main research...
ISBN: 978-6-1329-1333-3
Издательство:
Книга по требованию
Дата выхода: июль 2011
Frederic P. Miller, Agnes F. Vandome, John McBrewster
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Hermann Aron (October 1, 1845 – August 29, 1913) was a German researcher of electrical engineering.Aaron was born in Kempen (Kepno), a shtetl in the Province of Posen. His father was a chazzan and merchant.The family wanted him to train as a Jewish scholar or scrivener, however wealthy relatives made it possible for him to attend from 1862 the high school at Kollni, Berlin and after graduating in 1867, to study at the University of Berlin. Aron began by studying medicine, but changed in the 3rd term to mathematics and natural sciences. From 1870 he studied at the University of Heidelberg, with such notable...
ISBN: 978-6-1328-8227-1
Издательство:
Книга по требованию
Дата выхода: июль 2011
Frederic P. Miller, Agnes F. Vandome, John McBrewster
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Hermann Julius Oberth (25 June 1894 – 28 December 1989), born in Transylvania, Austria-Hungary, was a Romanian and German physicist and engineer of Saxon ancestry, who along with the Russian Konstantin Tsiolkovsky and the American Robert H. Goddard, was one of the founding fathers of rocketry and astronautics. The three never were active collaborators, and in fact, never knew one another: instead, their parallel achievements occurred independently of one another. Данное издание не является оригинальным. Книга печатается по технологии...
ISBN: 978-6-1337-0603-3
Издательство:
Книга по требованию
Дата выхода: июль 2011
In any company where supply of materials exists, the decisions of recovering non-conform materials are relevant. This work studies these decisions in an aerospace company, which its finished product has a long production and supply cycles with a high cost, what demands that the time of this recovery be as short as possible.The non-conform material has different destinies and each its costs. This work proposes the use of a heuristic model, which decides the destiny of the non-conform materials. Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.
ISBN: 978-3-6392-4152-5
Издательство:
Книга по требованию
Дата выхода: июль 2011
The advances in sensor and actuator technology foster the use of large multi-transducer networks in many different fields. The increasing complexity of biologically-inspired architectures requires high efficiency interconnection and co-operation of several control and processing modules. A real-time approach for data analysis requires the realization of interconnected modules which are capable to establish an efficient communication channel. In this way the application should be able to control all modules of the elaboration chain, including analysis protocol management and sensory and actuating interfaces. To help dealing with these problems an architecture for a dynamic and efficient management of multi- transducer data processing...
ISBN: 978-3-6392-5356-6
Издательство:
Книга по требованию
Дата выхода: июль 2011