Metal carbides possess unusual properties that make them desirable and useful engineering materials for many industrial applications. Here a systematic investigation is made with respect to the preparation in bulk, characterization and utilization of carbides. Three industrially important carbides viz., cementite, silicon carbide and titanium carbide were synthesized from elemental constituents by reaction milling which shows that it is highly viable and cost effective alternative. These are synthesized up to 1 kg in batch from their corresponding elemental constituents by reaction milling in a specially built dual drive planetary mill. The process is engineered at room temperature that obviates the need for expensive high temperature...
ISBN: 978-3-8433-8354-7
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Книга по требованию
Дата выхода: июль 2011
This book contains new and original investigations in the area of semiconductor quantum dots, a special class of nanoparticle. Due to size quantization, some new phenomena occur in the specimen. These properties make them very attractive candidates for developing nano electronic, optoelectronic and optic devices. This work includes synthesis of semiconductor quantum dots and the study of their sizes, optical absorption, and luminescence phenomena. The modifications in the sample properties after Swift Heavy Ion (SHI) irradiation are also reported.Finally, the applications of quantum dots as electronic, photonic and optic switch are also recorded. Данное издание не является оригинальным. Книга...
ISBN: 978-3-8383-6106-2
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Книга по требованию
Дата выхода: июль 2011
Synthesis of nano-scale/polymer core-shell particles, as LPA for unsaturated polyester and vinyl ester resins by the Z supported RAFT were investigated. CTA, BSPA was covalently attached to the surface of silica gel to make Si-BSPA and the RAFT polymerization subsequently occurred on the silica surface to form silica/polymer core-shell particles. BSPA was prepared from the potassium salt of 3-mercaptopropionic acid with excess of carbon disulfide, followed by the addition of benzyl bromide. The product was isolated by acidification of solution with hydrochloric acid. Before grafting of CTA on the silica gel, it was needed to activate the silica surface by boiling with hydrochloric acid. The nano-scale silica particle was synthesized by a...
ISBN: 978-3-8433-9153-5
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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! Syracuse Hancock International Airport is a joint civil-military public airport located 4 NM (7.4 km; 4.6 mi) northeast of Syracuse, in Onondaga County, New York, off of Interstate 81 near Mattydale, New York. The main terminal complex is located at the eastern end of Colonel Eileen Collins Boulevard. In 1927 Syracuse mayor Charles Hanna felt that his city needed an airport. A location at Amboy in the town of Camillus, New York was purchased for $50,000, and by 1928, the "Syracuse City Airport at Amboy" was handling airmail. At the end of World War II the United States Army Air Corps leased their bomber base near Mattydale, New York to the city. On September 17, 1949, the Clarence E. Hancock...
ISBN: 978-6-1308-9193-0
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Книга по требованию
Дата выхода: июль 2011
In der heutigen Simulationsrechnung besteht der Wunsch, die Rechenzeiten standig zu verringern. Unter Simulationsrechnung versteht man die virtuelle Nachbildung des physikalischen Verhaltens einer Baugruppe oder Bauteils. Diese Arbeit befasst sich mit der Vereinfachung komplexer Torsions-Schwingungssysteme, auf einfachere Systeme mit ahnlichem physikalischen Verhalten und deutlich verkurzten Berechnungszeiten. Torsionsschwingungssysteme sind mechanische Komponenten, die aus Massen und federnden Elementen zusammengesetzt sind. Die Vereinfachung wird durch gezieltes Entfernen von Massen und Kombination von Federn im Schwingungssystem erreicht. Das physikalische Verhalten wird durch Eigenschwingungen beschrieben, die aus der...
ISBN: 978-3-6390-3803-3
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Книга по требованию
Дата выхода: июль 2011
Frederic P. Miller, Agnes F. Vandome, John McBrewster
High Quality Content by WIKIPEDIA articles! Systems Engineering Laboratories (also called SEL) was a manufacturer of minicomputers in Fort Lauderdale, Florida. It was one of the first 32-bit realtime computer system manufacturers. Realtime computers are used for process control and monitoring; to accommodate these applications, they must include architectural features allowing them to respond quickly to external stimuli such as switch closures in a power plant. Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.
ISBN: 978-6-1340-0429-9
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Книга по требованию
Дата выхода: июль 2011
Tailings (mining waste) disposal is a significant consideration for the mining industry. It is of value for mine operators and tailings engineers to be able to predict the slope of the deposit (commonly referred to as a tailings beach), which forms from the hydraulic discharge of tailings slurry. In this thesis, existing methods for the prediction of tailings beach slopes are investigated. These methods are validated against relevant industrial and experimental data. Two separate phases of experimental work have taken place in an effort to investigate tailings deposition behaviour, one at mine sites and the other in a laboratory on a small scale. The methodology and results of this experimental work are presented here. Three new tailings...
ISBN: 978-3-6392-2372-9
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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 Tallboy was an earth quake bomb developed by Barnes Wallis and brought into operation by the British in 1944. It weighed five tons and, carried by the Avro Lancaster bomber, was effective against hardened structures against which earlier, smaller bombs had proven ineffective.The British aeronautical engineer Barnes Wallis presented his ideas for a 10 ton bomb in his 1941 paper A Note on a Method of Attacking the Axis Powers, which showed that a very large bomb exploding deep underground next to a target would transmit the shock into the foundations of the target, particularly since shock waves are transmitted through the ground more strongly than through air. Данное издание...
ISBN: 978-6-1304-2091-8
Издательство:
Книга по требованию
Дата выхода: июль 2011
Frederic P. Miller, Agnes F. Vandome, John McBrewster
High Quality Content by WIKIPEDIA articles! The Tay Bridge is a railway bridge approximately two and a quarter miles (three and a half kilometres) long that spans the Firth of Tay in Scotland, between the city of Dundee and the suburb of Wormit in Fife. As with the Forth Bridge, the Tay Bridge has also been called the Tay Rail Bridge since the construction of a road bridge over the firth, the Tay Road Bridge. The rail bridge replaced an early train ferry. "Tay Bridge" was also the codename for the funeral plans for Queen Elizabeth, The Queen Mother. The original Tay Bridge was designed by noted railway engineer Thomas Bouch, who received a knighthood following the bridge's completion. It was a lattice-grid design, combining cast and...
ISBN: 978-6-1341-5113-9
Издательство:
Книга по требованию
Дата выхода: июль 2011
Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! A technologist is a specialist who is trained to perform work in a field of technology. In some countries there is a clear definition defined by law, and only individuals who have graduated from an accredited curriculum in technology, and have a significant amount of work experience in their field may become registered technologists. Depending on the country, a technologist's recognition may be in the form of a certification or a professional registration. Canada has Certified Technologists and the United Kingdom has a professional registration for engineering technologists, known as Incorporated Engineers. The Sydney Accord and the Engineering...
ISBN: 978-6-1311-0274-5
Издательство:
Книга по требованию
Дата выхода: июль 2011
Durch die wachsende Zahl an Marktteilnehmern ist es zunehmend wichtig effizient zu produzieren. Es mussen Fertigungskonzepte erstellt werden um manuell durchgefuhrte Arbeiten durch Maschinen zu ersetzen und Personalkosten einzusparen. Dem erhohten Bedarf an Automatisierung bei gleichzeitiger Flexibilitat werden vielfach nur Knickarmroboter gerecht. In der Vergangenheit war festzustellen, dass Knickarmroboter in der Kunststoffindustrie immer mehr an Bedeutung gewinnen. Dieser Trend zeichnet sich nicht nur bei der Montage und Bearbeitung von Kunststoffteilen, sondern auch bei der Entnahme von Spritzteilen aus Spritzgiessmaschinen ab. Aufgrund der wachsenden Stuckzahlen, und der Standardisierung von Knickarmrobotern hat sich der Preis, bei...
ISBN: 978-3-6390-6642-5
Издательство:
Книга по требованию
Дата выхода: июль 2011
Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Technical engineer is a professional title created in several countries for professionals that were awarded a short-cycle 2- to 4-year undergraduate degree (associate degree or bachelor's degree) in a technical engineering field. Technical engineers are neither full chartered engineers nor professional engineers, and are usually allowed to perform a limited number of well defined tasks in engineering and industry. Technical engineers apply scientific and engineering skills usually gained in postsecondary programs below the bachelor's degree level or through short-cycle bachelor's degrees. However, some university institutions award undergraduate...
ISBN: 978-6-1311-0257-8
Издательство:
Книга по требованию
Дата выхода: июль 2011
Der Komfort zu Hause und am Arbeitsplatz verlangt nach immer mehr und mehr Energie. Ebenso wird auch in der Industrie immer mehr elektrische Energie und Prozesswarme benotigt, um z.B. Ihre Prozesse am Laufen zu halten. Hier kommen neben Gasturbinen und sog. Energieerzeugungsanlagen auch Dampfturbinen zum Einsatz. Die Dampfturbine findet eine breite Anwendung in den verschiedensten Einsatzbereichen,z.B.: - Antrieb der Stromerzeuger (Generatoren) Industrie – und Kraftwerkturbinen; - Mullverbrennung; - GUD – Kraftwerke; - Antrieb von Verdichtern und Pumpen; - Petrochemie; - Papierindustrie: Antrieb fur Holzschleifer in der Papierindustrie oder Zuckerrohrmuhlen; - Ausnutzung der Prozesswarme; - Schiffsantriebe Die vorliegende Arbeit hat...
ISBN: 978-3-6390-3003-7
Издательство:
Книга по требованию
Дата выхода: июль 2011
Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
High Quality Content by WIKIPEDIA articles! The Tehran Metro is a rapid transit system serving Tehran, the capital of Iran. The system consists of 4 operational lines, with construction having begun on a further two lines in 2007. The line uses standard gauge. Ticket price is 1200 IRR for each journey (about USD 0.15, regardless of distance. On all Tehran metro trains, the first and last carriages are reserved for women who do not wish to ride with men in the same car. However, women can still ride other cars freely. Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.
ISBN: 978-6-1305-3658-9
Издательство:
Книга по требованию
Дата выхода: июль 2011
As the river of voice and broadband subscriptions rise, the erosion of ARPU comes together with the heat of economic downturn, we need to strengthen our “Iroko” tree, namely the telecommunications network. We need to favour sharing models that would sustain the gains of the last decade. My purpose for this book is to influence telecom players, policy makers and entrepreneurs to harness these sharing models which in essence typify the communal nature of the African spirit. A popular Ashanti proverb goes thus: “"Do not call the forest that shelters you a jungle." Let Africa arise and build this telecom forest that would shelter us, our children and posterity. Telecommunications network across the continent can be likened to the giant...
ISBN: 978-3-8383-7032-3
Издательство:
Книга по требованию
Дата выхода: июль 2011
This book will introduce the reader to the techniques and technology of a Television Based Bistatic Radar system. Technology such as this one makes use of a non- cooperative television transmitter as an illuminator for the bistatic radar system. Both technical and theoretical information about the topic are discussed as well as introducing the reader to some history behind Bistatic systems as well as past work being done. The technical work and research done to simulate the bistatic system are also introduced and discussed. Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.
ISBN: 978-3-8433-6832-2
Издательство:
Книга по требованию
Дата выхода: июль 2011
This scientific monograph discusses the numerical analysis of a PID controlled and temperature constrained welding process. Temperature controlled welding may be essential amongst others to prevent deformation, residual stress or for in-service gas pipeline maintenance. This book discusses a method to model such a controlled welding process through finite element analysis. The Goldak moving heat source model representing the arc welding process has been implemented into the proprietary macro language of ANSYS, APDL. Algorithms have been developed to take readings of temperature levels on the workpiece surface and adjust the welding thermal output accordingly. Several tests have been carried out to verify the functionality of this model....
ISBN: 978-3-6392-9106-3
Издательство:
Книга по требованию
Дата выхода: июль 2011
Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
High Quality Content by WIKIPEDIA articles! A template processor is software or a software component that is designed to combine one or more templates with a data model to produce one or more result documents. A template processor is used in Template Oriented Programming. For purposes of this article, a result document is any kind of formatted output, including documents, web pages, or source code, either in whole or in fragments. This may be a relational database, a source file such as XML, an alternate format of flat file database, a spreadsheet or any of other various sources of preformatted data. Some template processing systems are limited in the types of data that can be used. Others are designed for maximum flexibility and allow...
ISBN: 978-6-1305-3688-6
Издательство:
Книга по требованию
Дата выхода: июль 2011
This report concers the hearing assessment performed for musicians involved in a pop-rock band who often attend to a rehearsal place (twice per week). Hearing threshold determination as well as otoacoustic emissions are obtained before and after rehearsal. The purpose is to document the temporary changes in hearing encountered for each group member to convince them about the neccessity of protecting their hearing. To realise about the effects to being exposed to intense loud sounds, musicians are compared in terms of their hearing with a non-exposed population composed of twelve subjects who reported normal hearing function. Eventually, the noise exposure level monitored at both rehearsal and an eventual concert are to be contrasted...
ISBN: 978-3-8443-0736-8
Издательство:
Книга по требованию
Дата выхода: июль 2011
Terminologie zum Thema Unimog (Dt./ Frz.) - Das vorliegende Werk wurde im Rahmen eines Praktikums im Sprachendienst der DaimlerChrysler AG in Stuttgart erstellt und dem Prufungsamt der Johannes Gutenberg-Universitat Mainz als Diplomarbeit im Studiengang Angewandte Sprach- und Kulturwissenschaft im Mai 2002 vorgelegt. - Gegenstand des Werkes ist eine terminologische Untersuchung der wichtigsten Fachtermini zum Thema Unimog in deutscher und franzosischer Sprache mit anschliessender Erstellung eines zweisprachigen Glossars. - Das Werk richtet sich in erster Linie an Ubersetzer und Dolmetscher, die sich als Laien auf dem Gebiet der KFZ-Technik in kurzester Zeit mit dem Thema Unimog beschaftigen mussen. - Aufgrund dessen besteht es nicht nur...
ISBN: 978-3-6390-2791-4
Издательство:
Книга по требованию
Дата выхода: июль 2011
Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
High Quality Content by WIKIPEDIA articles! In computer graphics, texture filtering is the method used to determine the texture color for a texture mapped pixel, using the colors of nearby texels (pixels of the texture). In short, it blends the texture pixels together by breaking them up into tinier pixels. Another term for texture filtering is called texture smoothing. There are many methods of texture filtering, which make different trade-offs between computational complexity and image quality. Since texture filtering is an attempt to find a value at some point given a set of discrete samples at nearby points, it is a form of interpolation. Данное издание не является оригинальным. Книга...
ISBN: 978-6-1305-3704-3
Издательство:
Книга по требованию
Дата выхода: июль 2011
This book will discuss the functionality of each access method (FDMA, TDMA and CDMA), the advantages, disadvantages, efficiency, implementation issues of each technology, and various forms of implementation for each technology. FDMA and TDMA are currently being used to support conventional and trunked radio systems, as well as commercial cellular systems. CDMA is being used primarily in cellular systems at this time. Access methods selection criterion is discussed to explain what should be considered to choose an appropriate access method. Some easy to understand tables are given to provide the reader a general overview of how each technology differs. Next, a comparison is made between the technologies followed by a discussion of the...
ISBN: 978-3-8433-6976-3
Издательство:
Книга по требованию
Дата выхода: июль 2011