Chapter 2 of this work brings together a full set of analytical tools to generate structural layouts which satisfy dual-material optimality conditions. Chapter 3 of the dissertation is concerned with methods to suppress local and global instability of least-weight structures. Perforated webs placed between structural members, structural member shape optimization and light-weight foam inserts are methods investigated in the research to address the instability problems. Simply supported least-weight arch beams were designed and mechanically tested. The experimental results were compared with FEA. In Chapter 4 matrix operator methods used to generate optimal layouts with straight boundaries were extended to include curved boundaries. A...
ISBN: 978-3-6390-1098-5
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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. Design B-65 was a class of Super Type A cruisers[A 1] planned by the Imperial Japanese Navy (IJN) before and during World War II. As envisioned by the IJN, the cruisers were to play a key role in the Night Battle Force portion of the "Decisive battle" strategy which Japan hoped, in the event of war, to employ against the United States Navy. Begun in 1939, plans were far enough along that tests were conducted with the main armament and against the underwater protection. Even though the ships were approved for construction under a 1942 fleet replenishment program, the prioritizing of aircraft carriers and smaller...
ISBN: 978-6-1342-5909-5
Издательство:
Книга по требованию
Дата выхода: июль 2011
The intent of this thesis was to design, build, and test a cylinder head with variable swirl and ignition sites. The design aspect used Solid Works Floworks to model airflow within the head and cylinder. Swirl rate and volumetric flow rate were calculated from the results. The experimental head was tested on the University of Miami flow bench in the Internal Combustion Engines Laboratory. The results of the experimental work and theoretical modeling were compared. The results matched closely. The difference between experimental and theoretical values for high swirl flow rates were less than 3% error and the swirl ratio was less than 10%. For the low swirl scenario, error was less than 30%. The measured flow rate for the high swirl...
ISBN: 978-3-8383-3263-5
Издательство:
Книга по требованию
Дата выхода: июль 2011
Design Methods of Rotors provides new design methods in the trochoidal derives, which could be a reference for engineering students and practicing engineers. The idea of the book could motivate readers with creative thinking. The text of the book includes the trochoidal curve on the geometry design of vacuum pump, gerotor, compressor, cycloidal speed reducer and the design methods. In the vacuum pump design, the author proposed a new method to improve the pump efficiency. In the cycloidal speed reducer design, two types of design on the mathematical model with tooth differences are proposed. The two proposed mathematical models could be applied to the gerotor pump as well. Besides, some other design methods are also presented to improve...
ISBN: 978-3-6391-8868-4
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Книга по требованию
Дата выхода: июль 2011
The main purpose of this book is to introduce the reader to the fundamental analytical concepts of the design of minimum-weight structures. This subject, more broadly termed structural optimization, is currently enjoying great interest in the engineering research. The goal of structural optimization is to create finite-element based iterative modeling systems, which will enable the establishment early in any design of the structural layout required for minimum-weight design. Once this layout is known, the remaining detailed design engineering can follow well established steps. To emphasize that the difficult task of layout, or topology is being undertaken, the topic is often referred to as topological structural optimization (TSO). It is...
ISBN: 978-3-6391-2447-7
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Книга по требованию
Дата выхода: июль 2011
Modulation code for optical recording systems have been concentrated on the combined DC-free and runlength-limited (RLL) code, in short DCRLL code. However, the design of high rate DCRLL code satisfying all of two constraints is far from obvious. Certainly, if channel is not free of errors, it is pointless to feed the sequences only satisfying RLL constraints.The weakly constrained coding scheme can accomplish the higher rate while it may relatively cause error in channel. The problem can be solved by designing the code with error correction capability. In this dissertation, in order to accomplish the above goals, low-density parity-check coded multimode code (LDPCCMC) and selection criteria are developed. The error control of LDPCCMC is...
ISBN: 978-3-6391-1390-7
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Книга по требованию
Дата выхода: июль 2011
This book reports the development of an integrated low-power readout circuit for a capacitive sensor with 40 - 60 pF basic capacitance. The sensor is used to detect screw loosening in an osteosynthesis measurement system. To ensure detection of screw loosening the readout circuit must be able to measure capacitance changes of at least 0.25 pF. Several readout techniques for capacitive sensors are investigated and evaluated for this application. Finally two types are developed and simulated, a Wien-bridge oscillator and a switched capacitor (SC) capacitance to voltage (C/V) converter. The oscillator is simulated with Cadence in a 0.35 µm triple-well, 4-metal, and double poly CMOS process from austriamicrosystems. The Wien-bridge is...
ISBN: 978-3-6390-8136-7
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Книга по требованию
Дата выхода: июль 2011
The state-of-the-art variable message sign (VMS) systems have been widely used as a crucial means in the daily traffic environment to promote safe and efficient driving on highways. In addition, these overhead mounted VMSs play an important role in the Intelligent Transportation System (ITS) by displaying real-time information and advice about roadway and traffic conditions. Thus, a properly designed and displayed message on VMS is especially important to a motorist who has to detect, comprehend, and act on signage information while being occupied with the driving task. To this end, this book proposes a comprehensive human factors study, incorporating three approaches: driver questionnaire surveys, lab experiments, and field studies, to...
ISBN: 978-3-8364-9911-8
Издательство:
Книга по требованию
Дата выхода: июль 2011
Optimization is the act of obtaining the best result under given circumstances. In design, construction, and maintenance of any engineering system, engineers have to take many technological and managerial decisions at every stage. The ultimate goal of all such decisions is either to minimize the efforts required or to maximize the desired benefit. Effort required or the benefit desired in any practical situation can be expressed as a function of certain decision variables. This book therefore provides the ground rules in understanding the techniques and methodologies, complete with case studies, for hands on learning for the product development. This includes a summary of the basics of CAD modelling, optimization (topology, structural,...
ISBN: 978-3-6391-9733-4
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Книга по требованию
Дата выхода: июль 2011
Microstrip edge coupled ?lters perform well as bandpass ?lters with a decent skirt rate. Coplanar waveguide (CPW) ?lters have been developed because of the good isolation they provide. Development of tuning techniques for these passive ?lters is becoming increasingly necessary to improve the robustness and reliability of microwave receiver designs. For example, in a high Q ?lter, a slight shift of the center frequency in a fabricated ?lter results in a very large change in the resulting gain at the frequencies of interest. This book explains the design of tunable microstrip edge-coupled filters and introduces three new tuning techniques for edge coupled filters. MATLAB codes for analyzing tunable edge-coupled filters are also provided....
ISBN: 978-3-6391-6643-9
Издательство:
Книга по требованию
Дата выхода: июль 2011
Laser tracking system (LTS) is one of the most powerful measurement and tracking instruments, and it has been widely used in accurate target tracking and measurement process in commercial or military applications in recent years. However traditionally, most approaches on the LTS provided very little detailed and complete information on building, developing, testing and troubleshooting processes for the LTS. To fill this gap, this book provides very detailed descriptions and analyses, both theoretically and practically, on optical, echanical, electronic and computer control programs in how to build and implement a real LTS with a complete set of documents. Some novel approaches, such as self-calibration of tracking gimbals and fuzzy logic...
ISBN: 978-3-6391-9241-4
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Книга по требованию
Дата выхода: июль 2011
Level of service at the airport check-in area is important not only to passengers but also to the airport operators and airlines. This book explains a computational method to design or redesign check-in halls using concepts about level of service, passenger arrival fluctuations, furniture layout, queue arrangement, number of counters and optimization techniques. The concept proposed in this book may be applicable to other types of transport interchanges as well. This book offers a range of topics including: • A technique to generate the pattern of departure passengers. • Spreadsheet methods to deal with passenger arrival variations during a 24 hour period. • Two simulation models with different level of resolution. • Number of...
ISBN: 978-3-6391-2580-1
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Книга по требованию
Дата выхода: июль 2011
Osmotic systems, one of the oral dosage form utilize the principles of osmotic pressure for the delivery of drugs. Drug release from these systems is independent of pH and other physiological parameters and it is also possible to modulate the release characteristics by optimizing the properties of drug and system. The aim of present research was to design and optimize the three novel osmotic drug delivery systems viz. Swellable Porous Osmotic System (SPOP), Monolithic Osmotic Tablet System (MOTS) Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.
ISBN: 978-3-8383-9227-1
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Книга по требованию
Дата выхода: июль 2011
This book presents the basic theory and design methodology of frequency synthesizers targeted for short-range wireless applications. Three different examples of synthesizers expose the reader to several aspects of the design where advanced circuit solutions are used to improve the performance of the presented circuits. A frequency synthesizer, part of a dual-mode receiver capable of processing signals of the Bluetooth and Wireless LAN (IEEE 802.11b) standards, is implemented in BiCMOS technology. Featured in the synthesizer is a phase switching prescaler. A large capacitance is also integrated on-chip using a capacitance multiplier circuit that provides a drastic area reduction while adding a negligible phase noise contribution. The book...
ISBN: 978-3-8364-5606-7
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. High Quality Content by WIKIPEDIA articles! Design A- 150, also known as the Super Yamato class,[A 1] was a Japanese plan for a class of battleships. Begun in 1938–39, the design was mostly complete by 1941. However, so that a demand for other types of warships could be met, all work on Design A-150 was halted and no keels were laid. Authors William H. Garzke and Robert O. Dulin have argued that Design A- 150 would have been the "most powerful battleships in history"[3] because of the massive size of their main battery of six 510 mm (20 in) guns as well as numerous smaller caliber weapons. Данное...
ISBN: 978-6-1342-5845-6
Издательство:
Книга по требованию
Дата выхода: июль 2011
Fracture to the neck of femur is frequently stabilised with a hip screw system, however the host bone is often weak or osteoporotic. This causes premature failure of the system, commonly by cut-out of the lag screw through the head of the femur. While augmentation of the fixation with bone cement improves the holding power and decreases failure rate, current methods of administering the cement are messy and inaccurate. This project proposes a lag screw design which allows for direct injection of the cement, via the lag screw itself, after the screw has been inserted and correctly positioned in the femur. A method is also suggested to reduce the risk of cement leakage into the joint space when the guide wire has punctured the head of the...
ISBN: 978-3-6390-6034-8
Издательство:
Книга по требованию
Дата выхода: июль 2011
As part of an accelerator based cargo inspection system, studies were made to develop a cabinet safe system by optimization of the beam optics of microwave linear accelerators working on the S-band and standing wave pi/2 mode. Measurements, modeling and simulations of the main subsystems were done and a multiple solenoidal system was designed. This cabinet safe system based on a multiple solenoidal system minimizes the radiation field generated by the low efficiency of certain microwave accelerators by optimizing the RF waveguide system and by also trapping secondaries generated in the accelerator head. The electron gun was also studied and software for its right mechanical design and for its optimization was developed as well. The...
ISBN: 978-3-6391-5901-1
Издательство:
Книга по требованию
Дата выхода: июль 2011
Frederic P. Miller, Agnes F. Vandome, John McBrewster
Design engineer is a general term that covers multiple engineering disciplines including electrical, mechanical and civil engineering, architectural engineers in the U.S. and building engineers in the U.K. The design engineer is distinguished from the designer/drafter by virtue of the fact that a design engineer takes care of the inner workings/engineering of a design. While industrial designers may be responsible for the aesthetic and ergonomic aspects of a design. The design engineer usually works in a team of engineers and designers to designing the overall design and the most far reaching parts. He/she may work with industrial designers and marketing to develop the product concept and specifications He/she may direct the design...
ISBN: 978-6-1306-7352-9
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Книга по требованию
Дата выхода: июль 2011
The industrial deployment of the fluidized bed reactors (FBR) have recently increased because of their excellent heat and mass transfer characteristics and product efficiency. In the state- of-the art design of these reactors, computational fluid dynamics (CFD) is a recently developed tool which can assist in their scale up. This book describes practical applications of multiphase CFD models with the kinetic theory of granular flows in bubbling, turbulent, and fluidized-bed reactors, including both experimental and computational approaches. It explains bubble behaviors, hydrodynamics, and reaction kinetics that are needed for scaling up such reactors using two multiphase CFD codes, the IIT code and the MFIX code developed at the NETL. It...
ISBN: 978-3-6391-3367-7
Издательство:
Книга по требованию
Дата выхода: июль 2011
A complex and demanding task in control theory is the optimization of the behaviour of systems. But what does optimal mean? Roughly spoken it means that one tries to find the "best" solution of an existing problem, for example to maximize the acceleration of a car or to minimize the energy consumption of a plant. The search for a control that fulfills necessary constraints while maximizing (or minimizing) the desired objective defines - according to the fundamental problem of optimization theory in the field of dynamic systems. If there are uncertainties that act upon the system which has to be controlled, it is necessary to make decisions without knowing what the e.ects might be in detail. The contribution of this book shall be to...
ISBN: 978-3-6390-3594-0
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. The DeSmogBlog, founded in January 2006, is a non- profit internet project and blog that focuses on topics related to global warming. The site describes itself as "the world's number one source for accurate, fact based information regarding Global Warming misinformation campaigns." DeSmogBlog opposes what it describes as "a well-funded and highly organized public relations campaign" that it says is "poisoning" the climate change debate. Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после...
ISBN: 978-6-1328-8170-0
Издательство:
Книга по требованию
Дата выхода: июль 2011
Frederic P. Miller, Agnes F. Vandome, John McBrewster
High Quality Content by WIKIPEDIA articles! A detachable chairlift or high-speed chairlift is a type of passenger aerial lift, which, like a fixed-grip chairlift, consists of numerous chairs attached to a constantly moving wire rope (called a haul rope) that is strung between two terminals over intermediate towers. They are now commonplace at all but the smallest of ski resorts. Some are installed at tourist attractions as well as for urban transportation. The significance of detachable chairlift technology is primarily the speed and capacity. Detachable chairlifts move far faster than their fixed-grip brethren, averaging 1200 feet per minute (13.6 mph, 6 m/s) versus a typical fix-grip speed of 500 ft/min. Because the cable moves faster...
ISBN: 978-6-1308-7417-9
Издательство:
Книга по требованию
Дата выхода: июль 2011
Frederic P. Miller, Agnes F. Vandome, John McBrewster
High Quality Content by WIKIPEDIA articles! A detachable collar is a shirt collar separate from the shirt, fastened to it by studs. The collar is usually made of a different fabric from the shirt, in which case it is virtually always white, and, being unattached to the shirt, can then be specially starched to a hard cardboard-like consistency. Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.
ISBN: 978-6-1341-7521-0
Издательство:
Книга по требованию
Дата выхода: июль 2011
Approximately one in nine women in the Western world will develop breast cancer, making it one of the most common and terrifying cancers. Screening programs reduce the mortality rate, but introduce an enormous amount of information that radiologists must process on a daily basis. Computer-aided diagnosis can assist clinicians sort through this data and help detect and classify cancer. This monograph introduces original results for the detection of early features of breast cancer from X- ray mammography analysis. Some of the earliest signs of breast cancer are clusters of microcalcifications, and a method for their detection based on a model of the human visual system is presented. The detection of breast masses in temporal mammographic...
ISBN: 978-3-6391-5854-0
Издательство:
Книга по требованию
Дата выхода: июль 2011
The book describes an efficient automatic algorithm for the segmentation of the inner and outer boundary of an abdominal aortic aneurysm in cross-sectional computed tomography angiography acquisitions. It covers the medical and technical background, the related publications for such problem, the algorithm implemented by us to segment the abdominal aortic aneurysm in detail, and the experiments and evaluation as well. Readers will thus be informed the motivation and challenge in doing arotic aneurysm segmentation, how this problem can be solved and how good the result is. This book is intended for all those who work in the field of medical image segmentation in CT, specially in aortic aneurysm segmentation. Данное издание...
ISBN: 978-3-6390-1367-2
Издательство:
Книга по требованию
Дата выхода: июль 2011