····· lezzter Preis 53.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Los buques pesqueros por el tipo de actividad que desarrollan están especialmente sujetos a una importante normativa reguladora en materia de Calidad, de Seguridad y Medio Ambiente. Esto con la finalidad de proteger la vida de las personas a bordo, el medio ambiente y la estructura del buque. La seguridad estructural es una herramienta eficaz para prevenir y minimizar los accidentes relacionados con la disposición del buque, abarcando aspectos como: la estabilidad, la lucha contra incendios y explosiones, circuitos eléctricos, dimensionamiento de las bodegas entre otros, de allí la importancia de la existencia de normas en esta área. La Propuesta presente de Seguridad de buques pesqueros, surge ante el problema de la inexistencia de un mecanismo normativo adecuado a las características particulares de la flota pesquera inscrita en la Capitanía de Puerto de Puerto Sucre. Siendo el objetivo principal el desarrollo de una propuesta de seguridad para el diseño, construcción y modificación de buques pesqueros de la Capitanía de Puerto de Puerto Sucre, Estado Sucre. ····· 1036122302
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Todo experimento debe tener una estructura que corresponda a las hipótesis iniciales de estudio y que facilite su ejecución y análisis posterior. La planeación del experimento juega un elemento primordial, aunque, en la práctica es también importante retomar un experimento con un cierto grado de avance en su ejecución. Este trabajo describe una serie de casos en ciencia de materiales que ejemplifican la introducción de técnicas de diseño experimental cuando los proyectos tienen diferentes grados de avance. La intención es proveer estrategias prácticas de diseño experimental que se puedan utilizar en el diario quehacer de los laboratorios de ciencia de materiales. ····· 1036122239
für 35.91€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Para una dada velocidad directriz, teniendo en cuenta adecuados coeficientes de seguridad, teóricamente el equilibrio dinámico se alcanza para una muy amplia gama de combinaciones de valores prácticos de radios, peraltes y fricciones, pero los accidentes frontales o por salida desde la calzada ocurren más para los radios menores. Es decir, el equilibrio dinámico no garantiza la seguridad del movimiento y el buen comportamiento de los conductores. El objetivo principal de este este trabajo es comparar los métodos de distribuir los peraltes indicados en las normas Argentinas DNV 67/80 y su actualización DNV 10, para lo cual se repasaron métodos de otros países, en particular Estados Unidos y España, con enfoques distintos. ····· 1036121804
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Simulation studies for EU oil field, Muglad Basin, Sudan were used to know the deliverability of the field. 3D seismic map, well log, and cores from drilled holes data provided the main data for the geological model used in the reservoir simulation model. A grid consisting of 2000 cells was constructed. The purpose of the simulation study is to determine the suitable method for long-term production. The study includes location of the production and injection wells, oil and injection rates in addition to the oil production profile for the field as a function of time as well as estimation of oil reserve. Several cases were generated in order to compare the production profile and the best production scenario was found. ····· 1036121433
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Recorded ground motions affected by forward directivity effects indicate that velocity pulse may arrive at a relatively later stage of the record even though it is believed to arrive at the beginning of velocity time-history. An attempt has been made to correlate arrival instant of velocity pulse with a few seismological and pulse parameters. To assess the effect of velocity pulse arrival on seismic response of structures, a series of oscillator with different hysteretic behaviour is considered. The results of nonlinear time-history analyses indicate that the late arriving pulse motions impose high ductility demand on SDOF systems in the long period region. A similar study with eight steel moment-resisting frames revealed that the effect of pulse arrival on the response of frame members depends upon the frame height and the member location. Similar results are obtained when the effect of velocity pulse arrival on the seismic response of acceleration sensitive nonstructural components is considered. The results obtained in this study will help the engineering community in deciding safety factors for design of structures/nonstructural components in near-fault region. ····· 1036121371
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Extended release of solid dispersion of water soluble PHC was successively prepared by coevaporation with Eudragit RLPO in 1: 5 ratios. The sustainment of drug release was effected by drug-polymer ratio and method of preparation. The analysis by spectral techniques (FT-IR, FT-NMR) suggested possibility of hydrogen bonding. The results of DSC, XRD and SEM studies revealed the reduction in crystallinity of pure drug in solid dispersions as compared to their physical mixtures. The results of solubility studies were in accordance with the in vitro release profile and the order of sustainment of drug release was found in rank order of 0.1 N HCl (pH 1.2) double distilled water phosphate buffer (pH 7.4). The results of adsorption studies indicated that Eudragit RLPO had greater capacity to adsorb drug as compared to Eudragit RS100 in phosphate buffer (pH 7.4). The content homogeneity of PHC in granule was very high, as all the components in solid dispersions were dispersed and mixed on the molecule level. The dissolution of PHC, which is highly soluble in water, was markedly improved in the solid dispersions. ····· 1036121183
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Rainfall infiltration is one of the major factors that lead to slope instability in unsaturated soil. The infiltration leads to the decrease of suction and hence causes the reduction in shear strength of the soil. On the other hand, evaporation dries the soil mass which invariably increases suction resulting in increasing the shear strength of the soil and the factor of safety of the slope. This book presents the results of a study on the combined effect of these two processes on suction distribution and the slope stability. Analysis was carried out using 1-year data representing a site at Johor Bahru, Malaysia. Soil samples were collected and relevant data, that is, soil water characteristics curve (SWCC), hydraulic conductivity curve, and shear strength parameters were gained through interpretation of laboratory test results. Transient seepage analyses were carried out using commercial finite element software (SEEP/W).Residual water content was assigned at the beginning of all analyses. The pore-water pressure distributions obtained from these analyses were transported to SLOPE/W where the factor of safety of the slope for the afore mentioned cases were determined. ····· 1036121164
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In order to allow the formation of the greatest number of plastic hinges and to dissipate as much as possible seismic energy of moment-resisting frames, dissipative zones should be mainly located in plastic hinges in the beams or in the beam-column joints, but not in the columns except at the base of the frame. It is clear that this design method strongly depends on actual mechanical properties of materials. The possibility that the actual yield strength of steel is higher than the nominal yield strength in dissipative zones should be taken into account by a material overstrength factor for the design of non-dissipative zones. In spite of the fact that this point is essential in seismic design, the value to be given to this overstrength factor varies in the provisions of different standards. Moreover, these standards don t provide adequate limitations on mechanical properties for steel products even if it should be directly related to the overstrength factor chosen. For these reasons, this work aimed to define suitable harmonised rules and recommendations for production standards and structural regulations for steel-concrete composite structures located at earthquake-prone areas. ····· 1036121132
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray A resource allocation problem (RAP) is encountered in a variety of areas in operations research and management science. It is a combinatorial optimization problem, where a limited amount of resources are to be allocated to certain number of competitive events in order to achieve the most effective allotment of the resources. Although the properties of an RAP can help in characterizing another RAP, different RAPs are usually studied independently without exploring the similarities among them. Therefore, with the aim of exploring the similarities among different types of RAPs, two versions of NSGA-II, a well-known multi-objective evolutionary algorithm, are developed as the solution techniques for two challenging RAPs of quite different natures, namely the university class timetabling problem and the land-use management problem. Finally, the similarities between the problems, as well as between their solution techniques, are analyzed through a number of case studies under multiple objectives and different sets of hard and soft constraints. ····· 1036120995
····· lezzter Preis 71.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The affordable effectiveness of commercial, civil, and military systems must be managed through their life cycles. Once the performance baseline is defined and instantiated, the challenge during the development, production, and utilization life cycle phases is to affordably sustain the physical system baseline. This baseline continuously evolves in response to external influences such as frequent and asynchronous obsolescence of system elements, changing requirements (mission needs, schedule and funding), and changing policy and regulations (i.e. security, export laws and safety standards). This research specifically addresses the impact of asynchronous obsolescence of system elements on overall system effectiveness and cost during its operational and support life cycle phases. An overview of a system obsolescence forecasting model, se-Fly Fisher, is detailed. This model uses technology curves of individual system elements (actual parts) for an understanding of obsolescence at the lowest level. The se-Fly Fisher model provides tactical insight of HOW often the system baseline should change, WHAT elements must change and HOW MUCH performance potential is realized. ····· 1036120866
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Lots of soil s geotechnical characteristics involved in the construction problems. Soil will eventually reach failure and deforming excessively when it is subjected to gradually increasing load. This failure is related to the shear strength which is considered as one of the most important engineering properties of the soil. This research focused on comparison of effective shear strength parameters (c`, `) that obtained from both Consolidated Undrain (CU) and Consolidated Drain(CD) triaxial tests for remoulded residual soil (silt). This study presents a reduction factor that helps to evaluate the effective internal friction angle of CD test from the results of CU triaxial test. The reduction factor is in the range of 0.89 to 0.92 that came as a result of this study to samples of residual soil with different initial water content. The initial water content had an influence in triaxial compression testing on the soil strength soil effective cohesion became higher in the range of (11% up to 29 %) when initial water content changed from 53% to 43%, and soil effective friction angle would increase by (3% up to 6%). ····· 1036120808
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The study investigated the texture depth, skidding resistance and roughness index of various bituminous pavement surfaces in Johor, Malaysia. The texture depth is a measure of the macrotexture of the pavement surface, which is the coarse component of the surface aggregate and determine by sand patch test (SPT). While the microtexture, which is the measure of the aggregate interstices referred to as the resistance to polishing (PSV) of the aggregate, is determined by the British pendulum test (PTV). The surface roughness of the road surface is determined by using the Australian walking profilometer. The surface roughness of road constitutes the comfort and safety the pavement provides to the user. ····· 1036120524
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Learn Yourself STAAD.Pro V8i is developed for the learners of the software to provide easy and clear understanding of various features and facilities available in this software. This book can be useful for students and practicing engineers of civil and structural engineering. Topics covered include model generation, loading and specifications, analysis methods, post processing of analysis results, concrete and steel design using Euro code and BS codes, report generation, wind load generation, seismic load generation, and error checking. The contents are presented a simple and lucid manner with screen shots of models wherever necessary. Each chapter contains various problems which are solved with step by step instructions. Sufficient review problems have also been listed at the end of each chapter. Key board short-cuts for various frequently used commands have been included in appendix. ····· 1036120458
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Thin film science plays a crucial role in high-technology industries with many applications in electronics, energy generation and conservation strategies. Crystallization from the vapor phase is an important method for the preparation of semiconductors, insulators and metals. Therefore, it is crucial that the mechanism of thin film growth be understood. Unfortunately, this is not the case and developments in thin films have been made mostly by trial and error, and explained using an outdated mechanism. Generally, the mechanism of thin film deposition by CVD/PVD is considered a surface reaction with atoms and/or reactive species produced in the gas phase of the reaction chamber. Gas phase nucleation is generally considered a detriment to thin film quality, and engineers tend to assume that this process does not occur to a significant extent under ordinary thin film deposition conditions. An alternative mechanism, the charged cluster model, suggests instead that a thin film is a three dimensional assembly of charged nanoparticles that nucleated in the gas phase. This book shows that the charged cluster model applies to metal thin film deposition by thermal evaporation. ····· 1036120259
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray A substantial part of the usable water may be lost as seepage from a canal. This book presents analytical solutions based on the inverse hodograph and Schwarz-Christoffel conformal transformation for computing seepage from polygon and curvilinear canals. These solutions have been simplified as explicit algebraic equations. The construction cost of network of canals constitutes a major cost item in an irrigation project and that should be minimized. Such a minimum cost canal design problem results in a non-linear objective function and a non-linear equality constraint, making the problem hard to solve analytically. A nonlinear optimization method has been applied to different shapes of canals and subsequently generalized explicit equations and section shape coefficients have been found through error minimization for the design of minimum cost canal sections. The analysis overcomes the complexity of the seepage from canals and minimum cost design of irrigation canal sections and thus the book should be useful to students, teachers, researchers and professionals interested in fields of canal design and operations. ····· 1036120099
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Bovine bone procured from the slaughterhouse was deproteinated by sintering method intended for the usage of bone graft substitute. The effect of sintering was investigated by thermal analysis, scanning electron microstructure (SEM) and physico-chemical methods such as x-ray diffraction (XRD), energy dispersive x-ray spectroscopy (EDX) and Fourier transformed infrared spectroscopy (FTIR). The XRD results revealed that the process of sintering promoted the crystallinity of bone samples, particularly at temperatures of 700°C, 800°C, 900°C and 1000°C. There was no secondary phase transformation detected for sintered bone at these temperatures except the presence of the hydroxyapatite (HAp) phase. Decomposition of HAp to beta-tricalcium phosphate ( -TCP) was observed when sintered at temperatures 1100°C and 1200°C for 2 hours. The FTIR spectra of raw bovine bone indicated the presence of organic macromolecules. However these organic macromolecules were not available in the samples sintered at temperatures 600°C and above. ····· 1036120065
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In the last three decades the interest for monitoring systems applied to large-scale chemical processes has increased notably. This is essentially due to the need of guarantying safety operation conditions of the overall plant, related personnel and environment. Moreover, devices such as sensors and/or actuators can suffer malfunctions which worsening the framework to define the process global state. The increasing complexity in both plant designs and control policies require intelligent monitoring systems to support the decision making.The main objective of this book is addressing the fault detection, diagnosis and estimation system design integrated to fault-tolerant control for chemical processes. The procedure is focused on manage automatically the abnormal situation by the suitable interaction between the fault detection system and the plant-wide control structure. To achieve this purpose several engineering tools were improved and integrated, either for a single process unit or large-scale plants. In fact, hybrid-active designs based on historical data, classical and advanced control, signal processing, and multivariate statistics procedures were considered for this proposal ····· 1036119999
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The purpose of this book is to explain the interactions of suspended and soluble aluminum with sulfate and silicates during the active treatment of acid mine drainage (AMD) or acid rock drainage (ARD). Active treatment consists of a multi-basin system with NaOH neutralization followed by settling of formed precipitates before discharge to surface waters. Measured supernatant compositions were compared with calculated values from MINEQL+ computerized equilibrium model.Particle size analysis revealed that sulfate and/or silicates reduced the mean suspended particle size from that which would have existed from the sole formation of amorphous Al(OH)3. Suspended aluminum levels will lead to an increase in the total Al that would be in a settling tank discharge. ····· 1036119878
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Louisiana had experimented with various techniques and treatments to control reflection cracking since the 1970s however, the cost-effectiveness and performance of these methods had not been reliably evaluated. In addition, scientific evaluation and testing of these treatment methods was not performed on many projects. To ensure successful control of this distress and effective allocation of maintenance funds, there is a critical need to assess the performance of pavement sections across the state built with various treatment methods and to determine the most cost-effective techniques to delay or to prevent reflection cracking in composite pavements. The objective of this study is to evaluate and compare different reflection cracking control treatments by evaluating the performance, constructability, and cost-effectiveness of pavements built with these treatments across the state.To achieve this objective, a survey of current state practices identified the treatment methods that are used or that had been used to delay and mitigate reflection cracking in composite pavements. ····· 1036119590
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Existing reinforced concrete (RC) structures are often vulnerable to seismic events. The reports of damage observed pointed out the key importance of beam-to-column joints on the global performance of RC frames. Several theoretical and analytical formulations have been proposed for evaluating the shear strength of beam-to-column joints. The present work deals with the formulations for evaluating the shear strength of exterior and interior connections currently available in both the scientific literature and the main seismic codes. The comparison between the experimental results collected in a wide database and the theoretical shear strength is made for assessing the presented models. The models have been recalibrated and the relevant coefficients describing the average error and the dispersion of the models have been evaluated. Furthermore, the behaviour of reinforced concrete beam-to-column joints under cyclic loading is analysed and a simple model for dynamic non-linear analyses is proposed. ····· 1036119580
für 26.01€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The purpose of this Workbook is to help children develop their vocabulary, spelling and thinking skills. Children will be able to build words from letters provided locate words hidden in word searches and use clues to identify words in crossword puzzles. Dictionary use is encouraged as children can check the meaning of unfamiliar words. This workbook can be used by all children, whether they are having literacy problems or not. It provides a platform for practice and ultimately all children will benefit. Enjoy your word adventure, and remember to work at your own pace. ····· 1036119503
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This thesis focuses on numerical modeling of depth-averaged shallow water equations. The finite volume based shock-capturing methods are used to discretize the governing equations. The one-dimensional and two-dimensional equations are solved implicitly using Newton-Raphson method for each time step. The two-dimensional model is implemented on unstructured quadrilateral as well as triangular grids. Applications and accuracy of the models are investigated using the experimental data and the previous numerical results available in the literature. The models are also validated by simulating tidal variations in a small stretch of the River Hooghly, India. A coupled model is also demonstrated and tested. In this approach, the river flow is considered to be one-dimensional and the floodplain flow as quasi two-dimensional. The two models are coupled considering only the mass flux and neglecting the momentum flux. The coupled model is applied to a small reach of River Thames, UK to predict the extent of inundation due to a real flood event and the results are compared with that derived from satellite imagery. ····· 1036119354
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book aims to study the impact of water level control structures on the self-assimilative capacity and ecosystem of rivers. Constructing a water level control structure in a river reach will increase the water depths, decrease the velocities and increase the groundwater table. These changes in the river hydraulics will impact the water quality of the river, its thermal regime and the fish that dwell in it. A mathematical model was developed to simulate the hydraulics, water quality, pollution transport in the river, temperature regime and fish habitat. The study and results showed that water level control structures have negative impacts on the upstream self-assimilative capacity of the rivers, but they have a positive impact on the DO concentrations in the downstream side due to the reaeration that happens across them. The structures also have a positive impact on the fish. As for the temperature regime it was slightly affected by the existence of the control structure.The book should be especially helpful to professionals or anyone else interested in the field of hydraulics, water quality and water environment. ····· 1036119351
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