In Formation Field

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The Formation And Characteristics Of A Broad Area Semiconductor Field Emission Cathode

Author : John W. Hanson
ISBN : CORNELL:31924003972910
Genre : Cathodes
File Size : 78.54 MB
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The work is a study of the formation, operation and application of a semiconductor field emission cathode consisting of one or more individual emitting points on a broad area cathode. The material primarily used was germanium. Two methods of forming these cathodes were studied; a vacuum breakdown method and one using radiation from a pulsed ruby laser focused on the cathode surface. The former is the method by which the cathode was first revealed. The latter holds the most promise for making cathodes practical. Both types of cathodes were observed with a scanning electron microscope to aid in understanding the mechanism by which the very regular emitting points are formed. The electrical characteristics of the cathode were studied experimentally and found to agree with theory of semiconductor field emission. A retarding potential analyzer was designed and built to measure the energy distribution for electrons emitted from individual points on the cathode. An electron optical system was used to study the operation of the semiconductor cathode as an electron source for such applications as in a cathode ray tube or similar device requiring a low-current electron beam. (Author).
Category: Cathodes

Field Tests Of The Cucaracha Formation Panama Canal 1942 1946

Author : Carneal K. Smith
ISBN : UOM:39015094984757
Genre : Panama Canal (Panama)
File Size : 33.44 MB
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This report describes and presents the results of field studies of shales of the Cucaracha formation conducted during 1942-1946 by the Special Engineering Division of The Panama Canal Company in connection with the design of the Third Locks Project. Geology of the area in the vicinity of the then-proposed New Pedro Miguel Lock where the field studies were made, as presented in this report, was based on a review of geological studies available at the time of the tests supplemented by more recent studies and exploration of the Cucaracha formation by geologists of The Panama Canal Company and the U.S. Army Engineer Waterways Experiment Station. Measurements were made of structure settlements, settlements adjacent to the structure up to 40 ft away, and pressures immediately beneath the base of the structure. Recommendations made by a board of consultant in February 1945 following review of the test results are included in this report. The data indicate that settlement of large structures on Cucaracha clay shales could be higher than anticipated in 1945. It is recommended that analyses be made of the test data using present-day analytical methods.
Category: Panama Canal (Panama)

Information From Abroad

Author : United States. Office of Naval Intelligence
ISBN : UOM:39015073462783
Genre :
File Size : 47.77 MB
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Yield Formation In The Main Field Crops

Author : V. Cerný
ISBN : 9780444599506
Genre : Technology & Engineering
File Size : 56.72 MB
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This book gives a detailed overview of production processes and yield formation in field crops and permanent grasslands. Yield formation is discussed by the authors as a dynamic process, involving many factors at each stage. Knowledge of the optimum levels of individual yield components makes it possible to control this dynamic process. It is intended that this approach will help to point out gaps in the understanding of the production processes and indicate the direction for further research on this subject. The authors report on various aspects which are involved in yield formation, such as uptake of nutrients, root growth, water use, photosynthesis, transport, distribution and accumulation of photosynthates, etc. A separate chapter discusses the production process as seen from a genetic standpoint. It includes an analysis of phenotype and genotype with respect to production potential, also the heredity, variability of yield potential and new cultivation methods are mentioned. The main part of the book deals with the theory and practice of yield formation in cereals, maize, legumes, sugarbeet, potatoes, clovers and perennial grass stands.
Category: Technology & Engineering

A Field Guide To The Information Commons

Author : Charles Forrest
ISBN : 0810866501
Genre : Language Arts & Disciplines
File Size : 20.68 MB
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Our sources of information, and the practices we use to find it, are in a period of rapid flux. Libraries must respond by selecting, acquiring, and making accessible a host of new information resources, developing innovative services, and building different types of spaces to support changing user behaviors and patterns of learning. A Field Guide to the Information Commons describes an emerging library service model that embodies all three spheres of response: new information resources, collaborative service programs, and redesigned staff and user spaces. Technology has enabled new forms of information-seeking behavior and scholarship, causing a renovation of libraries that revisits the idea of the "commons"—a public place that is free to be used by everyone. A Field Guide to the Information Commons describes the emergence, growth, and adoption of the concept of the information commons in libraries. This book includes a variety of contributed articles, and descriptive, structured entries for various information commons in libraries across the country and around the world.
Category: Language Arts & Disciplines

Field Implements And Machines

Author : John Scott (agriculturist.)
ISBN : UCD:31175002232935
Genre : Agricultural implements
File Size : 47.78 MB
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Category: Agricultural implements

Ranking Business Schools

Author : Linda Wedlin
ISBN : 9781847200273
Genre : Business & Economics
File Size : 67.49 MB
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In her admirable book, Wedlin entangles what [business school] rankings really are and why they have become so important. . . The book contains plenty to interest the growing army of business school employees whose duties, at least in part, are concerned with boosting their institution s position in the rankings. Education and Training In times when the management education field is increasingly impacted by a proliferation of ranking exercises, this book is a timely and welcome contribution. Linda Wedlin unpacks for us the real meaning of the contemporary explosion of rankings. Rather than simple classification schemes and mechanisms, rankings are, she suggests, arenas where the field of business education is being created and re-created. They are the loci of boundary-work , whereby a field is progressively evolving and constituting itself. This is a convincing study relying on rich empirical data and carefully anchored in relevant theoretical debates. A must-read for all those, academics, students, policy-makers and education professionals, who want to understand the complex contemporary logics of higher education in management but also probably well beyond. Marie-Laure Djelic, ESSEC Business School, Paris, France League tables appear everywhere and have become important aspects of business school environments. Based on in-depth and creatively combined empirical studies, Linda Wedlin provides us with explanations and insights on the emergence and impact of such rankings. This book should be of great value for all those who seek to "play the ranking game". It gives a fresh perspective on how classification mechanisms drive the emergence, boundary setting and change of organizational fields. Kerstin Sahlin-Andersson, Uppsala University, Sweden A fascinating study of the complex issues surrounding MBA rankings. Business schools really hate them but at times have to pretend to love them. Magazines and newspapers are really interested in their sales potential but have to make pretensions about their veracity. Linda Wedlin focuses on an area rich in hypocrisy and hype, but also one where there are real consequences: ranking furthered re-inforces the homogenising tendencies of MBAs. Anthony Hopwood, Saïd Business School, University of Oxford, UK This is a most fascinating topic, dealt with in a manner which is both serious and entertaining everyone in a business school would want to read it. Linda Wedlin s excellent research is presented with a no-nonsense approach if there is anything worth counting, she counts it, and then interprets it, no fuss. Exemplary! Barbara Czarniawska, Göteborg University, Sweden This engaging book offers a fresh perspective on the burgeoning field of European management education and its intense concern with rankings. Using a creative mix of well-crafted research tools, Wedlin deftly captures a professional field in transition as it both expands and develops shared standards. Walter W. Powell, Stanford University, US International comparisons and rankings of universities and business schools have proliferated in recent years. Ranking Business Schools provides a welcome analysis of this development and its implications for the field of management education, theorizing the role of classifications such as rankings in forming and structuring organizational fields. Focusing on the European experience with rankings and the subsequent response, the book illustrates how business schools use rankings to form identities and positions, and to draw boundaries for the field. By both creating and confirming belonging to a business school community and providing distinction within that group, rankings are important for defining an international field of management education organizations, constructing an international business school market, and constitute an arena for debating and establishing the boundaries of this field. Building an extensive theoretical framework for understanding classification
Category: Business & Economics

Triggered Star Formation In A Turbulent Interstellar Medium Iau S237

Author : International Astronomical Union. Symposium
ISBN : 0521863465
Genre : Science
File Size : 81.44 MB
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New stars form in the dense turbulent gas clouds of galaxies, and the formation of these clouds is the subject of the IAU S237. This book is the most up-to-date review of all aspects of cloud and star formation, and one of the few compendiums available on ISM turbulence.
Category: Science