für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The Global Economic Crisis, the increasing energy demand of emerging countries such as China and India, and the recent nuclear emergency in Japan show the importance of energy in our society and its direct influence on economics. Sulfuric acid is the biggest chemical commodity- in terms of volume- produced in the world and has a wide range of uses and not only within the chemical industry. Consequently, sulfuric acid plants offer the oportunity of a potential focus of cost-energy optimization for any country`s economy. The key of solving this problem is exergoeconomics, also known as thermoeconomics, which is the branch of engineering that combines both energetic and economic principles in order to improve the performance of a cost-effective system. The goal of this work is twofold. First, to document the use of exergoeconomics in the study of thermochemical processes, since there is little information on this topic to date. Second, its application in the optimization of sulfuric acid plants by means of a four-step methodology: exergetic, economic, and thermoeconomic analyses, plus the optimization. The study was carried out in a wet sulfuric acid plant. ····· 10361114753
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Evolutionary algorithms have proven to be an enormously powerful and successful problem-solving strategy for optimisation problems. This book presents a novel application for implementing Evaluation Algorithm to tune Model Base Predictive Control (MBPC), MBPC systems require accurate models if high performance is to be attained. Most chemical processes are nonlinear in nature, which makes developing precise models challenging. Indeed, there are no procedures available for tuning MBPC that offer robust performance in the presence of model uncertainty. Using of Evolution Algorithms offer the opportunity of incorporating multiple objective functions to tune and optimise MBPC in term of H-two, H-infinity and LQC design. This resulted in increased stability robustness and the satisfaction of the performance objectives. ····· 10361114698
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This monograph covers the following topics: 1- Log Derived Saturation Functions For Giant Carbonate Reservoirs in the Middle East. 2- Improved Method for Compositional Modeling using a Fine Scale Geological Description within Gas Injection Pattern in Carbonate Reservoir. 3- Calculation of flowing Bottom-hole Pressure Constraint based on Bubble Point Pressure versus Depth Relationship. 4- Laboratory Studies at Reservoir Conditions on the Impact of Acid Gas and CO2 Displacements on the Carbonate Matrix. 5- Accurate Calculations of Compressibility Factor for Pure Gases and Gas Mixtures. ····· 10361114654
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Electrochemical dealloying has proven to be an efficient way of fabricating nanoporous gold, the morphology of which can be tailored by controlling factors such as the etching time, temperature of electrolyte, composition of the alloy, pre and /or post heat treatment and voltage to suit applications such as fuel cell electrodes and sensors. This work aims at studying the effect of such factors as the electrolyte concentration on the morphology of the emerging material. A model relating the processing parameters and pore size is established by statistical approaches using the Design Expert 7.1 software. An equation that captures the individual as well as interaction effects on nanoporous gold is proposed. The validity of the equation is verified by existing research results. Simulation of this material under applied external load was done to achieve static properties in comparison with bulk gold. The applications where this might be helpful have been mentioned. ····· 10361114618
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This work is about prediction of the pressure distribution on building surfaces due to the natural wind, with computational fluid dynamics simulations on meshes that are as coarse as possible. By coarse meshes is meant that the number of cells is not higher than one million. To accurately resolve the smallest flow scales, grids with tens of millions of cells would be required, leading to unrealistic computational times with the currently available computer resources. So, the challenge of the work is to investigate how reliable pressure distribution predictions can be obtained on computational meshes that are so coarse that only the very largest features in the flow around a building can be resolved. The different modelling strategies for the turbulence in the oncoming atmospheric boundary layer are analysed. The result is that Implicit Large Eddy Simulation is the optimal technique. However, care has to be taken in prescribing correctly the approaching flow of the building. The work is, in first instance, of interest to professionals in building wind engineering who consider using computational fluid dynamics techniques, but who do not have specialized knowledge in the field. ····· 10361114571
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book introduces neural networks (NN) as a novel approach towards aiding biocomposite materials analysis and processing. At its core, the book acts as a primer on the use of NN as a tool for advancing the field of biocomposites. Biocomposites and neural networks may seem unrelated areas in two completely separate fields of science and engineering. However neural networks with its ability to learn from existing knowledge base can be effectively trained to understand / model material properties. While studying neural networks and materials it was realized that neural networks can aid and contribute in rapid prototype development for different polymer products and biocomposites. This book within its context will guide the researcher to analyze biocomposite materials using Neural Networks ····· 10361114550
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book contains the work which i carried out as my final year project, the main theme of the project was to design an air-conditioning system of a pharma products manufacturing area by using the design conditions as provided by the client. This design does not only focus on human comfort but also concentrates on the process comfort as Pharma Manufacturing is considered as a sensitive case. It helps me out in studying and researching of different topics and terms which i never studied before. The whole journey of completing the project will always be memorable for me as there were some ups and downs and i remember how i tackled with them. All in all Thanks to Almighty Allah for giving me the strength to complete the project and i pray for me and my fellow engineers for a better future ahead. Syed Muhammad Abdullah ····· 10361114549
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Gas turbine engines operate under the conditions of high temperature and stresses, and the engine components are also subjected to corrosion, oxidation and abrasion. Ceramic Thermal barrier coatings (TBCs) when deposited onto the hot sections of turbine engines improve their performance. TBCs have porosity by design, the architecture of which depends on the processing route. The presence of porosity gives rise to its low thermal conductivity and high strain tolerance. The porosity and its architecture can be significantly affected in service, thus changing the properties of the TBC and hence impairing its performance. Understanding the changes in pore architecture and relating it to changes in properties in-service thus forms an important objective. This book, suitable for engineering undergraduates, postgraduates and professionals, therefore, describes the materials` issues involved in the development of ceramic TBCs together with a brief overview of the current TBC systems, their porosity and pore architecture, thermal and mechanical properties, and techniques available for measuring these properties. ····· 10361114452
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Paraplegia is caused due to injury to the lower part of the body. One of the major reason is the spinal cord injury. This effects the health of the person suffering from this injury resulting in depression and inability to perform basic tasks in their daily life such as standing up from a sitting position. An approach to perform this basic exercise has been presented in this book.The patient driven strategy proposed helps in achieving sit to stand movement with the patient having complete control over the entire motion. Neural networks have been used to implement the inverse modeling i.e. estimation of input required for a certain output. The simlation has been performed in Matlab, Simulink and Visual Nastran. ····· 10361114430
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray AIM OF THE STUDY In the field of structure based drug design, there are some major goals of that biologists seek to achieve. To predict the proper structure of the proteins and if no X-ray crystallography structure of the protein is available, then derive the protein structure through homology modeling. Given the structure of inhibitors and its target to predict correctly the binding site on the target, the orientation of the ligand and the conformations of the both. Given the structure of a target macromolecules and a set of ligands is to rank the order of the compounds in their experimental characterization. The immediate major practical application of the above study are firstly to improve the binding capacity of existing inhibitors and secondly to suggest the lead compounds to locus the experimental screening effort either by searching chemical database or by Denovo drug designing. ····· 10361114357
für 49.00€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Absorption cooling is a suitable alternative to refrigeration compression systems which use refrigerants that are responsible for the ozone layer depletion and the climate change. Despite the fact that lithium bromide is the most commonly used absorbent in absorption systems, it contains bromides, which cause corrosion problems. Additionally, the fluid flow can enhance these problems. Copper and stainless steels are widely used in the construction of absorption systems. This book provides a comprehensive study of the influence of Reynolds number (including a hydraulic circuit design)on the galvanic corrosion of the copper/AISI 304 stainless steel pair in heavy lithium bromide brines using electrochemical techniques. Results can be useful for those who develop their research in the electrochemical field, where there is a lack of studies about corrosion taking into consideration flowing conditions. Moreover, the results could be of interest for engineers who want to know the real corrosion behaviour in pipelines and to understand the novel zero resistance ammeter technique, which allows monitoring corrosion without disturbing the system under investigation and in continuous-time. ····· 10361114329
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In matrix acidizing, the goal is to dissolve minerals in the rock to increase well productivity. This is accomplished by injecting an application-specific solution of acid into the formation at a pressure between the pore pressure and fracture pressure. A hydrochloric acid solution is used in carbonate reservoirs, which actually dissolves the calcite rock matrix in the form of conductive channels called wormholes. These wormholes propagate from the wellbore out into the reservoir, bypassing the damaged zone. In matrix acidizing of carbonates, there are four parameters that affect performance: the concentration of calcite present, injection rate of the acid, reaction type, and heterogeneity. Of these parameters, this paper will focus on how rock heterogeneity affects performance. To do this, a coreflood and acidizing apparatus was used to acidize heterogeneous limestone core samples. Rock characterizations and volumetric measurements were considered with the results from these experiments, which made it possible to correlate and quantify the results with rock and volume parameters. ····· 10361114296
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Proposed research framework aims at generating computerized conceptual product designs by incorporating Modularity, Design for Assembly (DFA) and Design for Variety (DFV) principles at the conceptual design stage. Conceptual design alternatives from the proposed framework are ranked based on minimum assembly time and are composed of modules in a way that future changes in customer needs are satisfied only by replacing certain modules. The framework involves searching a design repository of components by using functional-basis and pre-defined graph grammar rules, to generate all possible conceptual design alternatives. These are ranked and filtered using a DFA index, and top two alternatives are selected. Selected designs are modularized and filtered using a DFV index to obtain the best design alternative. The proposed framework is demonstrated through the design of two electro-mechanical products. ····· 10361114282
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Major earthquakes of the last few decades have generated a great deal of interest in structural control systems, to mitigate seismic hazards to lifeline structures - in particular, bridges. Although, there has been substantial work in the recent past in the development of structural control systems, their effectiveness could not be compared by a systematic study. This is because they were applied to different types of structures and subjected to different types of loadings. In this study, seismic response of the Benchmark Highway Bridge, with passive and semi-active control devices is investigated. The problem is based on the 91/5 highway over-crossing at Southern California, USA. An investigation of the existing devices has been carried out to evaluate their effectiveness under different earthquakes. The present study explores the use of seismic isolators, namely, Friction Pendulum System (FPS), Variable Friction Pendulum System (VFPS) and Variable Frequency Pendulum Isolator (VFPI). The semi-active devices studied include Variable damper, Pseudo- Negative Stiffness (PNS) damper, and Piezoelectric Friction Damper (PFD). ····· 10361114250
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This thesis presents the application of Element Free Galerkin method for analysis of an Elastic Bar. The Element Free Galerkin method is one of the efficient mesh free methods which needs only nodal data and does not need any nodal connectivity, which provides an advantage over the FEM`s. The need for the meshfree methods arose from the fact that the mesh based methods employ the elements for the imposition of the field values. These elements when distorted or misaligned with the back ground mesh give faulty and inaccurate results, further the simulation of explosion or the crack growth is very difficult in FEM`s. The results presented in this thesis are checked for validity and accuracy of numerical solutions and compared with the exact solution. Convergence study has been performed. Results show that the proposed formulations are able to reproduce the exact solution with high accuracy which indicates that these methods would be suitable in more complex environments and domains-settings. ····· 10361114166
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Plunge pool scour due to water jet impingement from flip bucket spillways is a major concern for stabilization of the hydraulic structures. Scour hole prediction using physical model is a potential tool to foresee its characteristics during design stage. This book presents an analysis of scour hole formation in a plunge pool using a physical model. In the model study, an ideal material was selected to represent actual river bed material so that scour hole can be reproduced. Moreover, many existing empirical equations of maximum scour depth and impact location estimation were reviewed, analyzed and categorized to suit with low, medium and high flow. Based on the experimental data, a new empirical equation for maximum scour depth prediction was initiated. With its useful techniques and practical tips, hydraulic engineers and researchers conducting studies in water engineering sector especially scour hole reproduction and forecasting provoked by water jet impingement or waterfall, could find this book as a useful guide to succeed. ····· 10361114150
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Determination of the optimal amount of refrigerant in field assembled refrigeration systems by use of a sight glass installed in liquid line is often misleading and unreliable. This is attributed to interferences to laminar flow of the refrigerant in the sight glass by ice formation in the expansion valve, vaporization of the liquid in pipes and foreign particles. Due to these interferences refrigeration systems may be overcharged or undercharged with the refrigerant. Measurement of temperatures and pressures at the inlet and exit of an evaporator may provide an accurate and reliable criterion of establishing the optimal amount of refrigerant in a refrigeration system. Using Rayleigh`s method of dimensional analysis, a mathematical model that expresses the evaporator cooling rate for field assembled refrigeration systems in terms of physical properties of the evaporator and the thermodynamic properties of refrigerant R134 a was developed. The model expresses the optimal amount of refrigerant in a refrigeration system corresponding to the maximum cooling rate. ····· 10361114134
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The availability of water in terms of both quantity and quality is essential to the very existence of mankind. Earlier people recognized the importance of water from quantity view point. Recognition of the importance of water quality developed more slowly. In the field of water resource management, information on the water quality is an essential input. Changes in water quality can be the result of domestic, industrial or agricultural discharges. The number of physical and chemical parameters such as pH, DO, alkalinity, conductivity, total solids, hardness, inorganic and organic trace elements etc. That needs to be monitored for proper assessment of water quality of any water resource is very large. In water resource management, where classification and comparison of different water resources on the basis of water quality is often requisite, it will be more convenient to integrate the data pool in some way to produce a single number. Water Quality Index (WQI) achieves these objectives and is of great value in water resource management. ····· 10361114122
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Hydrogen, a more sustainable source of energy, is a potential substitute for hydrocarbon fuel for power generation. The Very High Temperature Reactor (VHTR) concept can produce hydrogen with high efficiency and in large quantities. In order to acquire licensing eligibility for VHTRs, analyses of VHTRs under operation conditions and accident scenarios need to be performed. In this book, MELCOR, a severe accident code, was used to analyze one of the VHTR designs a prismatic core Next Generation Nuclear Plant (NGNP). A model of a 600 MW Gas Turbine-Modular Helium Reactor (GT-MHR) was developed with the MELCOR code. An NGNP model was developed by modifying the GT-MHR model. Simulations under normal operation condition and pressurized conduction cooldown accident were performed and the results were compared against the data from literature. MELCOR has been demonstrated to have the ability of modeling a prismatic core VHTR. VHTR technology envisions satisfying the growing energy needs while meeting the goal of sustainability. This analysis will facilitate the development of this technology. It will be especially useful for professionals in the field of alternative or nuclear energy. ····· 10361114102
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray An elevator (or lift) is a vertical transport vehicle that efficiently moves people or goods between floors of a building. They are generally powered by electric motors that either drive traction cables and counterweight systems, or pump hydraulic fluid to raise a cylindrical piston. Speech recognition is used in this book for operating the elevator system by just giving and matching the voice commands. So the push buttons need not be used. Voice commands like one , two and three are used to move the elevator to a particular destination floor. A seven segment display is used to indicate the destination floor number. Speech to text conversion is done on the voice signal which is the input of the smart elevator system to provide the input to the seven segment display. Passive infrared sensors are used to count the number of the people entering the elevator enclosure. It is used for avoiding overloading problem. A text to speech conversion module is used to provide voice alerts in The Voice Based Smart Elevator System . The voice alert system specifies the destination floor number on reaching the respective destination floor ····· 10361114092
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Soil-structure interaction is one of the most interesting topics in Geotechnical Engineering. Several factors render the mechanical response of soils to be markedly nonlinear, irreversible and time-dependent. In order to obtain reliable information for such practical problems, it is ardently necessary to take the aid of modeling and idealizing some specific aspects of soil behavior. This book reveals the efficacy of Lumped Parameter Modeling technique for a reliable prediction of the flexural response of footings resting on unreinforced and reinforced elastic, elastoplastic and viscoelastic foundation beds. Governed by the model complexity, the main shortcoming of such technique rests with the model parameter estimation. Based on observational data, this book illustrates the effectiveness of Inverse Analysis Technique aided with Optimization Algorithm in overcoming such deficiency. The various contents of this book shall largely help the students to understand the encompassed subject matter. Practicing professionals, especially those involved with the modeling of soil-structure interaction, ground improvement and soil reinforcement shall be immensely benefitted. ····· 10361114087
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Advent of 2G saw a paradigm shift in the use of wireless technology. The desire for multimedia applications overshadowed the fundamental voice service but required higher data rates. Multiple input multiple output (MIMO) communication system promises efficient achievement of this requisite. Limited by Shannon bound, the data rates in single antenna systems are linearly related to the bandwidth. But employing multiple antennas allows capacity growth, linear in the number of antennas, without expansion in available bandwidth. This significant gain led MIMO into the candidate 4G standards LTE and mobile WiMax. However, the simplified MIMO transmitted structure is coupled with a relatively complex receiver design. This book provides a comprehensive discussion on different multiple antenna configurations with focus centered on the state of art receiver designs. It details classical detection algorithms as well as lately proposed promising solutions with validated performances. This comparative analysis should help professionals to develop a thorough insight of advanced receiver designs. Novice researchers can also benefit from the book for a kick start towards their ultimate goal. ····· 10361114060
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· 1 · ::::: · 21 ·· 22 ·· 23 ·· 24 ·· 25 ·· 26 ·· 27 · ::::: · 83 ·
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