The primary focus of this book as a whole is on performance - performance of the catalyst, of its surface, of the FCC unit, of the feedstocks employed, of the analytical methods used to characterize the catalysts, and of environmentally directed regulations that govern the production of transportation fuels from petroleum. The emphasis on catalyst performance, particularly commercial performance, essentially dictated that the chapter authors be experienced industrial catalytic chemists and engineers. However, each author approached the task with a clear-cut obligation to connect the roots of the science of FCC catalysis with the technology.Fluid Catalytic Cracking: Science and Technology has been written for workers in industrial catalysis and academia, including graduate students in chemistry or chemical engineering who are interested in acquiring an overall knowledge of one of the world's most important areas of catalysis. The book is concise, each topic is treated briefly; complete, all aspects of FCC catalysis are covered; and clear, anyone involved in this field will find topics of interest.
Texto básico para la asignatura de Inferencia estadística del Grado de Economía. Los autores han desarrollado el libro de manera que, si bien el lector debe de tener unos conocimientos previos de estadística y cálculo de probabilidades, no utilizan una herramienta matemática muy elevada. En algunas ocasiones han prescindido de demostraciones que podrían resultar engorrosas para los fines que se pretende conseguir, sin que esto suponga una pérdida de rigor en la obra.
Los métodos estadísticos se aplican al estudio de fenómenos en cuya toma de decisiones prevalecen condiciones de incertidumbre. Esta incertidumbre plantea al investigador la necesidad de medirla, siendo la medida de la incertidumbre la probabilidad.Asociado al concepto de probabilidad está el concepto de variable aleatoria. Una variable aleatoria representa el conjunto de valores que pueden observarse en un fenómeno aleatorio, valores que dependen del azar y sobre los cuales es posible establecer una medida de su probabilidad. Según el número de valores que pueda tomar, la variable aleatoria puede ser discreta o continua.Se denomina distribución de probabilidad de una variable aleatoria a la función que asigna probabilidad a los valores que puede tomar la variable. Cuando se especifican los posibles valores de la variable aleatoria y sus probabilidades respectivas, tenemos construido el modelo de distribución de probabilidad.Este libro se ocupa de ilustrar con ejercicios resueltos todas las facetas del cálculo de probabilidades, incluyendo modelos de distribuciones discretas y continuas.Por otra parte, podemos definir los métodos de inferencia estadística como el conjunto de técnicas que comienzan estudiando la forma de seleccionar una muestra lo suficientemente representativa de una población cuya información permita inferir las propiedades o características de toda la población cometiendo un error medible y acotable. A partir de la muestra, seleccionada mediante un determinado método de muestreo formal, se estiman las características poblacionales (media, total, proporción, etc.) con un error cuantificable y controlable. Las estimaciones se realizan a través de funciones matemáticas de la muestra denominadas estimadores, que se convierten en variables aleatorias al considerar la variabilidad de las muestras. Los errores se cuantifican mediante varianzas, desviaciones típicas o errores cuadráticos medios de los estimadores, que miden la precisión de los mismos.Una parte importante de este libro trata las técnicas de inferencia estadística más habituales incluyendo los modelos de probabildad, estimadores, estimación por intervalos de confianza, contrastes de hipótesis paramétricos y no paramétricos y otras herramientas esenciales en la inferencia estadística.Cada técnica se complementa con una amplia variedad de ejercicios resueltos con STATGRAPHICS que ilustran los conceptos teóricos.
Survival data consist of a single event for each population unit, namely, end of life, which is modeled with a life distribution. However, many applications involve repeated-events data, where a unit may accumulate numerous events over time. This applied book provides practitioners with basic nonparametric methods for such data.
This perennial bestseller is an ideal introductions to epidemiology in health care. The fifith editon retains the book's simplicity and brevity, at the same time providing the reader with the core elements of epidemiology needed in health care practice and research. The text has been revised throughout, with new examples introduced to bring the book right up to date.
Zeolites and related microporous materials are used in oil processing and in the fine and petrochemical industries on a large scale. New applications of zeolites contribute to environmentally friendly processes and refined zeolites such as catalytic zeolite membranes and zeolites containing exhaust-pipe reactors are being introduced. Recent diversity in zeolite research has been fueled by the increase in number of microporous materials and the combination with interfacing science areas. The possibility to accommodate ions, large molecules or nanostructures in the crystalline matrix has been explored and the performance of electronic, acoustic and photonic modified response of the materials has been tested.This volume provides up-to-date information on new zeolite and related materials and composites, their applications, testing of new processes and techniques, and promising laboratory results as well. A vast amount of work from a fundamental aspect is incorporated. In particular, the combination of science and application offers useful information for readers interested in molecular sieves.
The 2015 edition of the Global Burden of Armed Violence provides a wealth of data relevant to security and the post-2015 sustainable development framework. It estimates that 508,000 people died violently - in both conflict and non-conflict settings - every year in 2007–12, down from 526,000 in 2004–09. This trend is visible in non-conflict settings, where the proportion of women and girls is also slightly reduced, from 17 to 16 per cent. Yet, the number of direct conflict deaths is on the rise: from 55,000 to 70,000 per year over the same periods. Firearms are used in close to half of all homicides committed and in almost one-third of direct conflict deaths. Nearly USD 2 trillion in global homicide-related economic losses could have been saved if the homicide rate in 2000–10 had been reduced to the lowest practically attainable levels - between 2 and 3 deaths per 100,000 population.
This highlights ongoing research efforts on different aspects of polymer nanocomposites and explores their potentials to exhibit multi-functional properties. In this context, it addresses both fundamental and advanced concepts, while delineating the parameters and mechanisms responsible for these potentials. Aspects considered include embrittlement/toughness; wear/scratch behaviour; thermal stability and flame retardancy; barrier, electrical and thermal conductivity; and optical and magnetic properties. Further, the book was written as a coherent unit rather than a collection of chapters on different topics. As such, the results, analyses and discussions presented herein provide a guide for the development of a new class of multi-functional nanocomposites. Offering an invaluable resource for materials researchers and postgraduate students in the polymer composites field, they will also greatly benefit materials
The Wiley-Interscience Paperback Series consists of selected books that have been made more accessible to consumers in an effort to increase global appeal and general circulation. With these new unabridged softcover volumes, Wiley hopes to extend the lives of these works by making them available to future generations of statisticians, mathematicians, and scientists. ". . . a goldmine of knowledge on accelerated life testing principles and practices . . . one of the very few capable of advancing the science of reliability. It definitely belongs in every bookshelf on engineering." –Dev G. Raheja, Quality and Reliability Engineering International ". . . an impressive book. The width and number of topics covered, the practical data sets included, the obvious knowledge and understanding of the author and the extent of published materials reviewed combine to ensure that this will be a book used frequently." –Journal of the Royal Statistical Society A benchmark text in the field, Accelerated Testing: Statistical Models, Test Plans, and Data Analysis offers engineers, scientists, and statisticians a reliable resource on the effective use of accelerated life testing to measure and improve product reliability. From simple data plots to advanced computer programs, the text features a wealth of practical applications and a clear, readable style that makes even complicated physical and statistical concepts uniquely accessible. A detailed index adds to its value as a reference source.
This Handbook aims to present a state of the art exploration of the high-tech field of functional data analysis, by gathering together most of major advances in this area.
