für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Achieving comfortable indoor environment with the use of renewable energy or waste heat with minimal carbon footprint is a major challenge in the field of air-conditioning. Liquid desiccant system (LDS) seem to be a promising technology. They can be used either as stand alone units or coupled with conventional vapor compression systems (Hybrid liquid desiccant system) for various applications involving dehumidification of air. Hybrid liquid desiccant systems have got more attention due to their higher COPs, lower regeneration temperature and better control over the supply conditions. However, it would be desirable to develop high performance stand alone liquid desiccant systems (SALDS) as they operate primarily on heat and require electricity only for driving the air blowers and liquid pumps. Developing novel designs of the absorber and the regenerator, and new thermodynamic cycles enabling use of SALDS are the prime themes of this book. ····· 10361114051
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Fly ash based geopolymeric binders have potential for a wide range of high temperature applications and it is receiving more attention due to their economic and environmental advantages. This kind of Geopolymeric materials possess intrinsic fire resistance due to their rigid 3-D aluminosilicate structure. Geopolymer specimens remains dimensionally stable at high temperature and provides good compressive strength also. The percentage of Na2O and SiO2/Na2O ratio affect development of internal pore structure of Geopolymers and subsequently its performance at elevated temperature. The characterisation of internal pore structure can be made by using simple experimentation like measuring water absorption, apparent porosity and water sorptivity as well as some sophisticated mineralogical and microstructure studies like SEM, XRD, MIP etc. also. This book records a huge experimental observations and explained intricate behavioural aspects of fly ash based geopolymer exposed elevated temperature. It will help the researchers and technologists to produce high temperature resistant geopolymer for different engineering applications. ····· 10361114006
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Plug-In Hybrid Electric Vehicles (PHEVs) have been promoted as a potential technology that can reduce vehicles fuel consumption, decreasing emissions related with the transport sector and dependence from oil importations. However emissions and cost impacts of PHEVs are strictly connected with the power mix generation used to produce electricity and when their batteries are recharged. Potential effects of a PHEV fleet on the power grid have been analyzed under different charging strategies, obtaining a quantitative estimation of the additional load affecting the transmission grid. The environmental impact of these vehicles is estimated for the State of Ohio as well as for other different countries showing the great importance that generation technologies have on PHEVs final environmental performances. Cost analysis shows how these vehicles can obtain great operation cost reduction due to the decrease of gasoline consumption, proposing this technology as a possible solution for decrease oil dependency of the transport sector. ····· 10361113959
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Failures of mass movements often result in extensive property damage and loss of human life. It is recognised that ensuring the stability of both natural and man-made slopes continues to be a fundamental issue in geotechnical engineering. There is no universally accepted method for the prevention or correction of landslides. The comparative performance of the various analyses has been carried out successfully using case studies. A visco-plastic flow model has been proposed to estimate lateral forces on piles used for slope stabilisation. Slope stabilisation due to the presence of a row of piles has been investigated using two distinct lateral load estimations. Eight well-known methods of slope stability analyses have been adopted and computer coded to re-calculate FOS values for a slope reinforced by a row of piles. The book is intended primarily for use in university courses, at both the undergraduate and graduate levels. The author also expects that the book will serve as valuable reference material for practising engineers. ····· 10361113951
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This monograph presents an artificial neural network (ANN) model for the analysis and assessment of infilled frames subjected to lateral loading. A multilayer feedforward network with backpropagation learning algorithm has been adopted to model the behaviour of infilled frames. Both reinforced concrete and steel frames were considered in the analysis. Based on a parametric study the optimum architecture of the network was arrived at, and it is observed that the trained networks are able to predict the failure loads and displacement of both reinforced concrete and steel infilled frames for all the test patterns satisfactorily. The equations which were formed based on a regression analysis between the predicted results and the actual results showed good agreement with new set of data. Hence, these equations can be used to obtain the actual capacity of the infilled frames. An experimental investigation also has been carried out in this monograph to check the efficacy of the developed model. The monograph focuses on the work carried by the first author at Anna University, Chennai, India as a part of her doctoral study. ····· 10361113949
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Transit Signal Priority is an operational strategy that eases the movement of transit vehicles such as buses, light rail or streetcars, through traffic-signal controlled intersections. The benefits of TSP operations include better schedule adherence and improved transit travel times with minimal impact to normal traffic operations. In this book, a portion of the new Tide Light Rail Transit (LRT) system in Norfolk, Virginia, USA is modeled and evaluated. In order to model and evaluate the TSP operations, a micro-simulation model for the network is created in VISSIM. By using the Ring Barrier Controller (RBC) emulator within VISSIM, the control logic for TSP and No TSP scenarios is created.The analysis and context of the book is helpful to the professionals and students, especially those in the field of urban planning and transportation engineering, or anyone else who may be considering utilizing TSP logic for learning and research efforts. As the book contains in detail experimental results analyses as well as real life field scenario implementation, it will be a drafting tool to gaining knowledge about transit signal priority. ····· 10361113858
für 69.21€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Current market trends have resulted in the need for more efficient and robust manufacturing paradigm. Additive manufacturing (AM) can fabricate parts directly from digital models. Thus it can significantly shorten product development cycle while satisfying customized design requirements. However, compared with traditional manufacturing process, AM process also have disadvantages. Many researchers have extensively studied some critical processes and proposed novel solutions to improve the process. However, all these process planning methods are still mainly based on trial and error. This book, therefore, investigated the main principles and key techniques of AM process, formulated predicative mathematics models, proposed various optimization approaches and conducted simulation and physical experiments for verification. The proposed method can fundamentally and efficiently improve the AM process constrained by the current technique conditions. This research work should be useful to professionals in advanced manufacturing especially additive manufacturing fields, or anyone else who are interested in process modeling, optimization and simulation. ····· 10361113807
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Light is shining and beautiful as well as being a mystery for many hundreds of centuries. But, after separation, into its components, using a prism, a very beautiful rainbow appears. A lot of natural events around us are composed of unknown natural sources, while we just observe the results of these sources. Theses phenomenon include a wide range from genomes to multiuser communications signals. Blind Source Separation (BSS) extracts those original sources and discovers structural components of the fundamental phenomenon involved. BSS does not need apriori knowledge of the mixing process or the sources. Indeed BSS blindly separates the mixed sources. Such ability makes BSS a exible and powerful framework for employment in a wide range of applications. BSS is now one of the hottest and emerging areas in Signal and Image Processing, and it has drawn researchers attention in different areas, like biomedical engineering, medical imaging, speech processing, communication systems and etc. This book presents an explanation to BSS methods, calls on the reader`s intuition and it simply applies BSS over Speech, Image and MIMO OFDM communications. ····· 10361113799
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In this book, an integrated approach for the application of knowledge based systems and finite element simulation is introduced. Applying this knowledge and simulation based concept for the whole product development cycle from the conceptual design through the process planning and die design as an integrated CAE tool provides significant advantages both in the design and in the manufacturing phase. Sheet metal forming simulation results today are already reliable and accurate enough that even tryout tools and the time consuming tryout processes may be eliminated or at least significantly reduced. Thus, the integrated solution described in this book results in significantly shorter lead times, better product quality and as a consequence more cost-effective design and production. ····· 10361113788
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The purpose of this work was to study the condensation heat transfer and pressure drop characteristics ofHFC-134a in a micro-fined tube with an 18 degree helix angle and to compare them to those in a smooth tube for various operating conditions.The experimental test facility is designed, developed and is used to determine the condensation HTC and pressure drop in smooth and micro-fin tubes for various HFC refrigerants namely HFC-134a, R-404A, R-407C, R-507A. The experimentation covers wide range of operating parameters such as mass flux and condensing temperatures. The instrumentations used for measurements are calibrated from recognized calibration centres. The hermetically sealed compressor is used for circulating refrigerant effect of oil present in the refrigerant during condensation is also taken into account. The condensation of HFC-134a and R-404A in smooth and micro-fin tubes are measured and obtained the values of condensation HTCs and pressure drops for different mass flux and condensing temperatures ····· 10361113739
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Multiple slender structures subjected to a fluid flow are widely seen in engineering. Flow interference between the structures leads to a very high fluctuation of forces on the structures, structural vibrations, acoustic noise, or resonance, which in some cases can trigger failure, jeopardizing the residents` lives. In engineering, fluid-induced forces, flow structures and vortex shedding frequencies are the major factors to consider in the design of structures. The knowledge of flow around two fluid-dynamically interfering cylinders is insightful for understanding the flow around more structures. This book encompasses the advancement of knowledge in physics of flow around two circular cylinders in a cross flow, including steady and fluctuating fluid forces, surface pressure, Strouhal numbers, flow structures, wake characteristics, flow switching mechanisms, possible interaction mechanisms, instabilities, and correlations between forces, reattachments, phase of vortex-shedding, Strouhal numbers. This book is intended for postgraduate students, researchers, engineers, and teachers in mechanical, civil, aeronautical, and ocean engineering. ····· 10361113712
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Orthogonal Frequency Division Modulation (OFDM) is the modulation employed by the LTE downlink physical layer. Recent studies on pilot-aided channel estimation, show that assuming a parametric channel model can effectively improve the estimate accuracy. The algorithms based on this model perform the frequency response estimation of a multipath environment through the knowledge of the tap-delay parameters. This work focuses on the estimation of the number of delays, required by the tap-delay estimators. For this purpose the state-of-the-art detection scheme is investigated over a static and a dynamic channel. Furthermore, it is compared with an approach based on a simple threshold operation. It`s shown that over the static channel, MDL exhibits a certain robustness against the time observation reduction, while the Threshold algorithm suffers from a signi cant increase in the estimate`s error. Tests over the dynamic channel show a general performances decrement. However MDL average error doesn`t drastically get worse as the Threshold one. The state-of-the-art performances then, are not exceeded, but the noticed problems still leave this topic open. ····· 10361113692
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The corrosion characteristics of Al-4.5Cu/ZrSiO4 particulate composite in 0.5molar hydrochloric acid without and with lanthanide chloride salt have been investigated. I5% ZrSiO4 was used for the production of the Al-4.5Cu/ZrSiO4 particulate composite using squeeze cast method. Addition of 15% zircon sand resulted to 5.04% decrease in density and 82.61% increase in hardness with respect to the unreinforced Al-4.5Cu matrix alloy. The time, temperature and concentration of inhibitor were varied in the range of 2-10hr, 30°C-75° and 250- 1000ppm respectively. Analysis of variance (ANOVA), factorial design and Arrhenius kinetic approach were used to explain the corrosion mechanism. All statistical design was computed at 95% confidence level. Results show that maximum inhibition was observed at 250ppm. An inhibition efficiency of 73.58% was observed after 10 hours of exposure in 0.5molar hydrochloric acid at 250ppm inhibitor concentration and 30°C. The analysis of variance and factorial design were in good agreement with the kinetic analysis. ····· 10361113650
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray 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 observing moderate hearing losses of the potentially visitors. ····· 10361113637
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In historical background of oil and gas exploration industry, over years, fixed offshore platforms are widely used. In the design of fixed offshore structures, as known, they are always attacked by severe environmental loads especially dynamic wave loads which govern the design factor of the platform. In addition, they are found sufficiently rigid to withstand environmental loads in the open sea. However, if soil stiffness under seabed is taken into account, we know that soil layers are not acting as perfectly stiff foundation. Nonlinearity of soil stiffness with its property may affect the global structural stiffness and it is a time-dependent function of total forces at pile head. Therefore, natural frequency of structure becomes nonlinear and it may increase structural response or induce resonance. For design purpose, this book will give distinctively useful ideas to professional design engineers or students who are interested in methodology for modeling of non-linear foundation system of offshore structure. It is also recommended to researchers who would like to extend the scope beyond this book as recommended in the last section. ····· 10361113581
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Plastic injection molding process is well known as the manufacturing process to create products with various shapes and complex geometry at low cost. The injection molding cycle consists of several stages, such as filling, packing, and cooling. The cooling system design is of considerable importance since about 80% of the cycle time is taken up by the cooling phase. In this book, injection mold of a complicated plastic part with undercuts is designed by providing the Sliders in the mold and cycle time is reduced by optimizing cooling time. In this book, different variables included: size, location and layout of cooling channels, temperature and flow rate of the coolant and the effect of different types of plastic materials on cooling time are analyzed analytically and through software analysis to optimize the cooling time. ····· 10361113521
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Recent research in video surveillance has shown an increasing focus in creating reliable systems for observing humans` appearance, movements and activities, thus providing analytical information for advanced human behavior analysis. In order for the system to function, it requires robust method for detecting and tracking human from a given input of video streams. In this book, a human detection technique suitable for video surveillance is presented. The techniques proposed include adaptive frame differencing for background subtraction, contrast adjustment for shadow removal, and shape based approach for human detection. The tracking technique on the other hand uses correspondence approach. Event Based Video Retrieval (EBVR) system is proposed for efficient surveillance data management and automated human recognition. Proposed human detection and tracking are integrated with EBVR into a complete automated surveillance system which produces good result and real-time performance especially in non-crowded scene and handles automated human recognition with unique ID assignment accurately. This book could serve as an introduction for new researchers in this field. ····· 10361113475
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Today, Computer Numerical Controlled (CNC) machines are found everywhere. This book provides the practical basics for learning how to program and operate the latest CNC controls. It examines the usage techniques necessary for successful CNC operations in a variety of machine applications including milling machines, machining centers, and laser cutting machines. Upon completing this book, the reader will possess a firm understanding of the basics required to become proficient with different form of CNC equipment. This book provides knowledge of CNC basic fundamentals applied to the production-machining environment. The aim of preparing this book was to develop a teaching material appropriate and consistent with needs of students of college of Engineering,that will help and cover and provide the student`s needs to understand, learn and apply CNC basic fundamental knowledge from fundamentals, concepts and definitions to multiple examples and diverse applications. Therefore it was necessary for us to refer and use literature and a variety of sources to quote what is appropriate for achieving this aim, the result was this book. ····· 10361113456
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In cellular mobile communication, since there will be conversation in progress in case of handover calls, GOS for them should be less than that for newly originating calls. Basically, there are three channel assignment schemes, fixed, dynamic & hybrid channel assignment schemes for handling newly originating and handover calls. In this study, capacity design for cellular mobile network in area inside ring road in Kathmandu valley has been done according to the findings of data collection and analysis of mobile communication service being provided by Nepal Telecom. Capacity planning has been done with GOS equal to 2% for newly originating calls and 1% for handover calls. In addition to capacity planning, efficient channel assignment scheme in terms of blocking and throughput has been evaluated with optimal utilization of the designed capacity for getting minimum blocking for both types of calls maintaining the blocking for handover calls always less than that for newly originating calls. The simulated values of GOS & throughput for all channel assignment schemes at different penetration have been compared and hybrid channel assignment scheme has been found to be most efficient. ····· 10361113444
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Growing pressure on use of available water for human demand in Hari Rod River basin requires a better understanding of flow in river system, as well as for allocating the available resources in effective way considering the water need for the riverine ecosystem. This study attempts to quantify the required environmental flows for healthy ecosystem and demonstrates the application of hydraulic and hydrological based methods for major Afghanistan river basins. Indicators of Hydrologic Alteration (IHA) method considering Range of Variability Analysis (RVA) were used to estimate the need of environmental flows and were compared with other hydrological based approaches. Maintaining environmental flows of a river means reducing the water demand of one or more sectors. Keeping this in perspective, reservoir simulation technique was applied to operate the proposed reservoir (Salma Dam). Alternative mitigation measures were suggested to reduce the impacts of allocating EF on irrigation and hydroelectric demands. Dry years conservation zone were developed to decrease the irrigation shortages caused by environmental flows consideration. ····· 10361113439
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Current approaches to automatic software fault localization can be classified as either (1) statistics-based approaches, or (2) reasoning approaches. This distinction is based on the required amount of knowledge about the program`s internal component structure and behavior. Statistics-based fault localization techniques such as Spectrum-based Fault Localization (SFL) use abstraction of program traces (also known as program spectra) to find a statistical relationship between source code locations and observed failures. Although SFL`s modeling costs and computational complexity are minimal, its diagnostic accuracy is inherently limited since no reasoning is used. In contrast to SFL, model-based reasoning approaches use prior knowledge of the program, such as component interconnection and statement semantics, to build a model of the correct behavior of the system. On the one hand, model-based reasoning approaches deliver higher diagnostic accuracy, but on the other hand, they suffer from high computation complexity. ····· 10361113438
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The independent design of control and communication network promotes only isolated objectives and the performance is usually degraded after integration. The approach for networked teleoperation can be given a new dimension by adding quality of service (QoS) to different flows on need based priority and as a function of control and transparence criteria, i.e. the quality of control (QoC). This refers to a co-design approach for wireless networked teleoperation. ····· 10361113383
für 79.00€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Chatter is an unwanted phenomenon in machining due to its adverse effects. Chatter control is difficult in the absence of unified understanding on the causes of chatter formation. This book presents experimental results contesting the validity of the established Regenerative Chatter theory and proposes a resonance based chatter theory. The authors have proved based on extensive chip analysis that chip formation in turning thread cutting and end milling of metals and alloys is accompanied with the formation of primary or secondary serrated teeth with frequencies that increases with cutting speed. The analysis of the vibration signals in frequency domain (FFT) on the other hand proved that chatter is the outcome of resonance and it appears in the system when the frequency of the serrated teeth become approximately equal to any one of the ····· 10361113361
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray A behaviourally realistic description of route choice behaviour should consider variables that are both observable, such as travel time and cost, and unobservable, such as attitudes, perceptions, spatial abilities and network knowledge. This book focuses on route choice behaviour by analyzing spatial ability indicators and modelling route choices of individuals driving habitually from home to their workplace. This book presents the web-based survey designed to collect spatial ability information and observed route choices among morning commuters, the application of factor analysis to extract latent factors related to route choice behaviour, the comparison between path generation techniques and the estimation of route choice models with specifications that considered level-of-service variables and latent constructs from the factor analysis. Route choice modellers, transport planners and urban planners would benefit from results suggesting that the development of instruments to assess individual traits and the refinement of choice model structures would allow better prediction of route choice behaviour and better organization of congestion countermeasures. ····· 10361113326· 1 · ::::: · 22 ·· 23 ·· 24 ·· 25 ·· 26 ·· 27 ·· 28 · ::::: · 83 ·
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