Army Research and Development PDF Download

Author:
Publisher:
ISBN:
Category : Military research
Languages : en
Pages : 442

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Author: John Bemelmans Marciano
Publisher: Bloomsbury Publishing USA
ISBN: 160819941X
Category : Mathematics
Languages : en
Pages : 418

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The intriguing tale of why the United States has never adopted the metric system, and what that says about us. The American standard system of measurement is a unique and odd thing to behold with its esoteric, inconsistent standards: twelve inches in a foot, three feet in a yard, sixteen ounces in a pound, one hundred pennies to the dollar. For something as elemental as counting and estimating the world around us, it seems like a confusing tool to use. So how did we end up with it? Most of the rest of the world is on the metric system, and for a time in the 1970s America appeared ready to make the switch. Yet it never happened, and the reasons for that get to the root of who we think we are, just as the measurements are woven into the ways we think. John Marciano chronicles the origins of measurement systems, the kaleidoscopic array of standards throughout Europe and the thirteen American colonies, the combination of intellect and circumstance that resulted in the metric system's creation in France in the wake of the French Revolution, and America's stubborn adherence to the hybrid United States Customary System ever since. As much as it is a tale of quarters and tenths, it is a human drama, replete with great inventors, visionary presidents, obsessive activists, and science-loving technocrats. Anyone who reads this inquisitive, engaging story will never read Robert Frost's line “miles to go before I sleep” or eat a foot-long sub again without wondering, Whatever happened to the metric system?

Author: Joshua D. Angrist
Publisher: Princeton University Press
ISBN: 0691152845
Category : Business & Economics
Languages : en
Pages : 300

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From Joshua Angrist, winner of the Nobel Prize in Economics, and Jörn-Steffen Pischke, an accessible and fun guide to the essential tools of econometric research Applied econometrics, known to aficionados as 'metrics, is the original data science. 'Metrics encompasses the statistical methods economists use to untangle cause and effect in human affairs. Through accessible discussion and with a dose of kung fu–themed humor, Mastering 'Metrics presents the essential tools of econometric research and demonstrates why econometrics is exciting and useful. The five most valuable econometric methods, or what the authors call the Furious Five—random assignment, regression, instrumental variables, regression discontinuity designs, and differences in differences—are illustrated through well-crafted real-world examples (vetted for awesomeness by Kung Fu Panda's Jade Palace). Does health insurance make you healthier? Randomized experiments provide answers. Are expensive private colleges and selective public high schools better than more pedestrian institutions? Regression analysis and a regression discontinuity design reveal the surprising truth. When private banks teeter, and depositors take their money and run, should central banks step in to save them? Differences-in-differences analysis of a Depression-era banking crisis offers a response. Could arresting O. J. Simpson have saved his ex-wife's life? Instrumental variables methods instruct law enforcement authorities in how best to respond to domestic abuse. Wielding econometric tools with skill and confidence, Mastering 'Metrics uses data and statistics to illuminate the path from cause to effect. Shows why econometrics is important Explains econometric research through humorous and accessible discussion Outlines empirical methods central to modern econometric practice Works through interesting and relevant real-world examples

Author: Jerry Z. Muller
Publisher: Princeton University Press
ISBN: 0691191263
Category : Business & Economics
Languages : en
Pages : 245

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How the obsession with quantifying human performance threatens business, medicine, education, government—and the quality of our lives Today, organizations of all kinds are ruled by the belief that the path to success is quantifying human performance, publicizing the results, and dividing up the rewards based on the numbers. But in our zeal to instill the evaluation process with scientific rigor, we've gone from measuring performance to fixating on measuring itself—and this tyranny of metrics now threatens the quality of our organizations and lives. In this brief, accessible, and powerful book, Jerry Muller uncovers the damage metrics are causing and shows how we can begin to fix the problem. Filled with examples from business, medicine, education, government, and other fields, the book explains why paying for measured performance doesn't work, why surgical scorecards may increase deaths, and much more. But Muller also shows that, when used as a complement to judgment based on personal experience, metrics can be beneficial, and he includes an invaluable checklist of when and how to use them. The result is an essential corrective to a harmful trend that increasingly affects us all.

Author: Cornelius Wandmacher
Publisher: Amer Society of Civil Engineers
ISBN: 9780784400708
Category : Technology & Engineering
Languages : en
Pages : 319

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Wandmacher and Johnson provide guidance for practicing engineers, students, and educators who are adopting and using the International System of Units in their engineering work.

Author: Ronald Rousseau
Publisher: Chandos Publishing
ISBN: 0081024754
Category : Language Arts & Disciplines
Languages : en
Pages : 403

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Becoming Metric-Wise: A Bibliometric Guide for Researchers aims to inform researchers about metrics so that they become aware of the evaluative techniques being applied to their scientific output. Understanding these concepts will help them during their funding initiatives, and in hiring and tenure. The book not only describes what indicators do (or are designed to do, which is not always the same thing), but also gives precise mathematical formulae so that indicators can be properly understood and evaluated. Metrics have become a critical issue in science, with widespread international discussion taking place on the subject across scientific journals and organizations. As researchers should know the publication-citation context, the mathematical formulae of indicators being used by evaluating committees and their consequences, and how such indicators might be misused, this book provides an ideal tome on the topic. - Provides researchers with a detailed understanding of bibliometric indicators and their applications - Empowers researchers looking to understand the indicators relevant to their work and careers - Presents an informed and rounded picture of bibliometrics, including the strengths and shortcomings of particular indicators - Supplies the mathematics behind bibliometric indicators so they can be properly understood - Written by authors with longstanding expertise who are considered global leaders in the field of bibliometrics

Author:
Publisher:
ISBN:
Category : Electric power
Languages : en
Pages : 1564

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Author: Johann Hermann Heinrich Schmidt
Publisher:
ISBN:
Category :
Languages : en
Pages : 220

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Author: Lynne Ocone Speed
Publisher:
ISBN: 9781469150512
Category : Education
Languages : en
Pages : 128

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Through a friendly chat, this educational story tells a bit of history and using approximations, instead of conversions between the inch-pound and metric systems, explores the basics of the metric system used in everyday life. Jim, a reporter, writer and part-time teacher, is knowledgeable and experienced with the metric system. Nathan, friend of Jim, physically shows and emotionally vocalizes his feelings against the metric system. After calming Nathan, Jim teaches Nathan and Rachel, a young college student, the basics of the metric system, including the physical quantities (meter, gram, liter, and Celsius) and prefixes (kilo, hecto, deka, deci, centi and milli). They cover units, prefixes, length, weight, volume, speed, distance, and temperature.

Author: Alistair Croll
Publisher: "O'Reilly Media, Inc."
ISBN: 1098168151
Category : Business & Economics
Languages : en
Pages : 403

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Whether you're a startup founder trying to disrupt an industry or an entrepreneur trying to provoke change from within, your biggest challenge is creating a product people actually want. Lean Analytics steers you in the right direction. This book shows you how to validate your initial idea, find the right customers, decide what to build, how to monetize your business, and how to spread the word. Packed with more than thirty case studies and insights from over a hundred business experts, Lean Analytics provides you with hard-won, real-world information no entrepreneur can afford to go without. Understand Lean Startup, analytics fundamentals, and the data-driven mindset Look at six sample business models and how they map to new ventures of all sizes Find the One Metric That Matters to you Learn how to draw a line in the sand, so you'll know it's time to move forward Apply Lean Analytics principles to large enterprises and established products