engineering materials
Fundamentals of Die Casting Design.pdf
Taken from Abstract: Die-casting engineers have to compete not only with other die-casting companies, but also against other industries such as plastics, and composite materials. Clearly, the ”black art” approach, which has been an inseparable part of the engineer’s tools, is in need of being replaced by a scientific approach. Excuses that “science has not and never will work” need to be replaced with “science does work”. All technologies developed in recent years are described in a clear, simple manner in this book. All the errors of the old models and the violations of physical laws are shown. For example, the “common” pQ2 diagram violates many physical laws, such as the first and second laws of thermodynamics. Furthermore, the “common” pQ2 diagram produces trends that are the opposite of reality, which are described in this book.
The die casting engineer’s job is to produce maximum profits for the company.
In order to achieve this aim, the engineer must design high quality products at a minimum cost. Thus, understanding the economics of the die casting design and process are essential. These are described in mathematical form for the first time in this volume. Many new concepts and ideas are also introduced. For instance, how to minimize the scrap/cost due to the runner system, and what size of die casting machine is appropriate for a specific project.
The die-casting industry is undergoing a revolution, and this book is part of it. One reason (if one reason can describe the situation) companies such as Doehler Jorvis (the biggest die caster in the world) and Shelby are going bankrupt is that they do not know how to calculate and reduce their production costs. It is my hope that die-casters will turn such situations around by using the technologies presented in this book. I believe this is the only way to keep the die casting professionals and the industry itself, from being “left in the dust.”
Fundamentals of Air Pollution Engineering.pdf
Taken from Preface: Analysis and abatement of air pollution involve a variety of technical disciplines. Formation of the most prevalent pollutants occurs during the combustion process, a tightly coupled system involving fluid flow, mass and energy transport, and chemical kinetics. Its complexity is exemplified by the fact that, in many respects, the simplest hydrocarbon combustion, the methane-oxygen flame, has been quantitatively modeled only within the last several years. Nonetheless, the development of combustion modifications aimed at minimizing the formation of the unwanted by-products of burning fuels requires an understanding of the combustion process. Fuel may be available in solid, liquid, or gaseous form; it may be mixed with the air ahead of time or only within the combustion chamber; the chamber itself may vary from the piston and cylinder arrangement in an automobile engine to a lO-story-high boiler in the largest power plant; the unwanted byproducts may remain as gases, or they may, upon cooling, form small particles.
Control in an Information Rich World: Report of the Panel on Future Directions in Control, Dynamics, and Systems.pdf
The purpose of this report is to spell out some of the prospects for control in the current and future technological environment, to describe the role the field will play in military, commercial, and scientific applications over the next decade, and to recommend actions required to enable new breakthroughs in engineering and technology through application of control research.
Introduction to Geology.pdf
This pdf materials presents basic studi in geology. Table of contents:
* Overview.pdf
* History of science.pdf
* Time, temperature, and composition ranges.pdf
* Non-silicate minerals.pdf
* Silicate minerals.pdf
* Igneous rocks.pdf
* Sedimentary rocks.pdf
* Metamorphic rocks.pdf
* Relative and absolute ages.pdf
* Early life.pdf
* Rock deformation.pdf
* Field techniques.pdf
* Planetary formation.pdf
* Plate tectonics.pdf
* Earthquakes.pdf
* Volcanoes.pdf
* Formation of continents.pdf
* Weathering and rivers.pdf
* Glaciers.pdf
* Deserts.pdf
* Coastlines and oceans.pdf
* Comparative planetology.pdf
Water and Wastewater Treatment Engineering.pdf
Theory and design of systems for treating industrial and municipal wastewater and potable water supplies. Methods for characterizing wastewater properties. Physical, chemical, and biological processes, including primary treatment, and suspended growth and fixed-film methods for secondary treatment. Nutrient removal. Reactor design and process kinetics. State-of-the-art processes. Sludge processing and disposal.
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