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1. |
Record Nr. |
UNINA9910647230003321 |
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Titolo |
Various applications of methods and elements of adaptive optics / / by Julia Sheldakova (editor) |
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Pubbl/distr/stampa |
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[Place of publication not identified] : , : MDPI - Multidisciplinary Digital Publishing Institute, , 2023 |
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ISBN |
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Descrizione fisica |
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1 online resource (148 pages) |
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Disciplina |
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Soggetti |
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Optics, Adaptive |
Optics, Adaptive - History |
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Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di contenuto |
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About the Editor vii -- Preface to "Various Applications of Methods and Elements of Adaptive Optics" ix -- Fabrication and Characterization of an Adaptive Retroreflector (AR) 1 -- The Lattice Geometry of Walsh-Function-Based Adaptive Optics 11 -- Real-Time Correction of a Laser Beam Wavefront Distorted by an Artificial Turbulent Heated Airflow 29 -- On-Demand Phase Control of a 7-Fiber Amplifiers Array with Neural Network and Quasi-Reinforcement Learning 43 -- Adaptive Detection of Wave Aberrations Based on the Multichannel Filter 55 -- Focusing of a Laser Beam Passed through a Moderately Scattering Medium Using Phase-Only Spatial Light Modulator 75 -- Filtered Influence Function of Deformable Mirror for Wavefront Correction in Laser Systems 85 -- State-of-the-Art Technologies in Piezoelectric Deformable Mirror Design 101 -- Development of Singular Points in a Beam Passed Phase Screen Simulating Atmospheric Turbulence and Precision of Such a Screen Approximation by Zernike Polynomials 111 -- Local Correction of the Light Position Implemented on an FPGA Platform for a 6 Meter Telescope 125. |
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This volume is focused on a wide range of topics, including adaptive optic components and tools, wavefront sensing, different control algorithms, astronomy, and propagation through turbulent and turbid media. |
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2. |
Record Nr. |
UNISALENTO991003741769707536 |
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Autore |
Caracciolo, Mario |
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Titolo |
L'Italia e i suoi alleati nella grande guerra : con nuovi documenti / Mario Caracciolo |
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Pubbl/distr/stampa |
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Milano : A. Mondadori, c1932 |
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Descrizione fisica |
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Collana |
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Collezione italiana di diari, memorie, studi e documenti per servire alla storia della guerra del mondo / diretta da Angelo Gatti |
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Disciplina |
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Soggetti |
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Guerra mondiale. 1914-1918 - Italia - Rapporti con gli alleati |
Guerra mondiale. 1914-1918 - Italia - Storia diplomatica |
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Lingua di pubblicazione |
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Materiale a stampa |
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Livello bibliografico |
Monografia |
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3. |
Record Nr. |
UNINA9910960881803321 |
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Titolo |
Computing professionals : changing needs for the 1990s : a workshop report / / prepared by the Steering Committee on Human Resources in Computer Science and Technology, Computer Science and Telecommunications Board, Commission on Physical Sciences, Mathematics, and Applications, and Office of Scientific and Engineering Personnel, National Research Council |
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Pubbl/distr/stampa |
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Washington, D.C., : National Academy Press, 1993 |
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ISBN |
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9786610211418 |
9781280211416 |
1280211415 |
9780309572842 |
0309572843 |
9780585085227 |
0585085226 |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (164 p.) |
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Disciplina |
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Soggetti |
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Computer engineers - United States |
Computer engineers - Supply and demand - United States |
Computer programmers - Supply and demand - United States |
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Monografia |
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Note generali |
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Workshop held on Oct. 28-29, 1991, in Irvine, Calif. |
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Nota di bibliografia |
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Includes bibliographical references. |
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Nota di contenuto |
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Computing Professionals -- Copyright -- Preface -- Contents -- Executive Summary -- WORKSHOP ORGANIZATION AND FINDINGS -- Demand Is Fluid and Skill Requirements Are Growing -- Equality of Opportunity and the Increasingly Global Talent Pool Are Among Supply Challenges -- Dynamic Occupations Require Continuous Learning -- Better Planning Requires More and Better Data -- THE CHALLENGE OF COMBINING VIEWPOINTS -- 1 Introduction -- 2 Data and Taxonomy: Computing Professionals Are Hard to Count -- INTRODUCTION -- WHY ARE THE DATA UNSATISFYING? -- Need for Agreement on Labeling -- Need for Better Taxonomies -- THE CURRENT SITUATION -- Data on Employment -- Employment in Academic Institutions -- Data on |
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Degree Production -- ISSUES AND CONCLUSIONS -- NOTES -- 3 Demand Crosscurrents: Emerging and Disappearing Jobs -- INTRODUCTION -- FACTORS IN THE MACRO ENVIRONMENT AFFECTING DEMAND -- The Recession and Slow Recovery -- Longer-Run Factors -- Shifting National Priorities -- Globalization of Markets and Production -- New Economic Activity -- CHANGES IN COMPUTER-BASED TECHNOLOGY AND APPLICATIONS AFFECTING DEMAND -- Recent Trends and New Directions -- Implications for Occupational Demand -- Implications for Levels of Skill Required -- WHAT DO EMPLOYERS WANT? -- Differing Views from Industry and Academia -- The Emergence of Multidisciplinary Teams -- TRENDS IN DEMAND BY FUNCTION -- Research -- Academic Research -- Industrial Research -- Applications and Systems Development -- Applications and Systems Deployment -- ISSUES AND CONCLUSIONS -- NOTES -- 4 Supply: Who Enters the Profession? -- INTRODUCTION -- DEGREE PROGRAMS -- Two-Year Programs -- Baccalaureate Programs -- Master's Programs -- Doctoral Programs -- FUTURE SUPPLY: PIPELINE OR AQUIFER -- Encouraging Student Interest -- Experienced Workers -- PROMOTING DIVERSITY -- Equality of Opportunity -- Minorities. |
Women -- FOREIGN-BORN CITIZENS -- ISSUES AND CONCLUSIONS -- NOTES -- 5 Training, Retraining, and More Retraining -- OVERVIEW -- EDUCATION CURRICULA -- TRAINING -- ISSUES AND CONCLUSIONS -- NOTE -- 6 Conclusion and Next Steps -- ACKNOWLEDGING EVOLVING DEMAND -- BROADENING AND NURTURING THE TALENT STREAM -- PROVIDING FOR ONGOING TRAINING -- ACTING ON IMPLICATIONS FOR EDUCATION -- IMPROVING THE LINKAGE BETWEEN SCHOOL AND WORK -- IMPROVING DATA GATHERING AND ANALYSIS -- NOTE -- Appendixes -- A Comparison of Data Sources and Data -- INTRODUCTION -- Data Needed to Assess Supply and Demand -- Sources of Direct Data -- Sources of Indirect Data -- Why the Data Differ -- COMPARING AVAILABLE DATA ON SUPPLY -- Bachelor's Degrees -- Master's Degrees -- Doctoral Degrees -- Number of Ph.D.s Awarded -- Demographic Characteristics of Computer Science and Computer Engineering Ph.D.s -- DATA ON THE CURRENT LABOR FORCE -- DEMOGRAPHIC CHARACTERISTICS OF THE CURRENT LABOR FORCE -- THE FUTURE -- Data Indicators of Demand -- What We Do Not Know-and What We Need to Know-About Current Supply and Demand -- Forecasting the Future -- BIBLIOGRAPHY -- B U.S. Degree Programs in Computing -- INTRODUCTION -- OVERVIEW OF PROGRAMS -- Two-Year Programs -- Baccalaureate Programs -- Master's Programs -- Doctoral Programs -- BACCALAUREATE PROGRAMS -- Information Systems -- Information Science -- Computer Science -- Computer Engineering -- Software Engineering -- Computational Science -- COMPARISON OF BACCALAUREATE PROGRAMS -- SUMMARY FOR TWO-YEAR AND GRADUATE PROGRAMS -- Two-Year Programs -- Graduate Programs -- CONCLUSIONS -- REFERENCES -- C The Demand For Human Resources and Skills in the 1990s -- THE ENVIRONMENT: GENERAL BUSINESS TRENDS -- ACADEMIA -- INFORMATION TECHNOLOGY -- Past -- Present -- Future -- Outlook for Information Technology Investment -- Growth Areas. |
Summary-Human Resources in Information Technology -- RESEARCH AND DEVELOPMENT -- Past -- Present -- Future -- New Technologies -- Solutions to Current Problems -- Applications -- End-User Productivity -- Software Development Productivity -- DEMAND IN THE UNITED STATES -- GLOBAL COMPETITION AND DEVELOPMENT PRODUCTIVITY -- SUMMARY -- BIBLIOGRAPHY -- D Workshop Program. |
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Sommario/riassunto |
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Surprisingly little is known about the people responsible for advancing |
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the science, technology, and application of computing systems, despite their critical roles in the U.S. economy. As a group, they can be referred to as "computing professionals." But that label masks an unusually wide range of occupations. To add to the confusion, the nature of these occupations is changing rapidly in response to dramatic advances in technology. Building from discussions at a workshop, this book explores the number, composition, demand, and supply of computing professionals in the United States. It identifies key issues and sources of data and illuminates options for improving our understanding of these important occupational groups. |
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4. |
Record Nr. |
UNINA9911007025703321 |
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Autore |
Polka Dave |
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Titolo |
Motors and Drives : A Practical Technology Guide |
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Pubbl/distr/stampa |
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Newark : , : John Wiley & Sons, Incorporated, , 2020 |
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©2020 |
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ISBN |
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Edizione |
[2nd ed.] |
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Descrizione fisica |
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1 online resource (366 pages) |
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Collana |
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International Society of Automation Series |
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Disciplina |
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Soggetti |
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Electric motors |
Variable speed drives |
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Lingua di pubblicazione |
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Formato |
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Livello bibliografico |
Monografia |
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Sommario/riassunto |
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This practical guide developed by Dave Polka, an industry veteran with more than 30 years of experience, is an invaluable resource for design engineers, automation and control specialists, maintenance technicians, and students. The basic theories of AC and DC drives haven't changed but the technology certainly has, and this new edition takes a fresh look at how market demands have advanced motor and drive technology to lead the industry in new directions.The second edition incorporates significant new material, including discussions on: AC drives and machine safetyApplication-specific drives and soft- |
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startersEnhanced programmability for AC drives including adaptive, function block, sequential, and IEC-61131-3 programmingMaster(leader)-follower, Ethernet, fiber-optic, and PLC communicationsThe principles of DC and variable frequency AC drive technologyAn overview of drive components and types of drives, with special emphasis given to common applications and energy savingsDC and AC motor and drive operation, as well as AC vector, servo, and permanent magnet motorsInside you will also find easy to understand explanations, summaries, review questions, glossaries, reference tables for formulas and conversions. Great for a tutorial or desk reference! |
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