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1. |
Record Nr. |
UNINA9910825237003321 |
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Autore |
Singh Ramesh |
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Titolo |
Arc welding processes handbook / / Ramesh Singh |
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Pubbl/distr/stampa |
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Hoboken, New Jersey : , : Scrivener Publishing, , [2021] |
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©2021 |
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ISBN |
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1-119-81907-5 |
1-119-81908-3 |
1-119-81906-7 |
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Descrizione fisica |
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1 online resource (440 pages) |
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Disciplina |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di contenuto |
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Intro -- Table of Contents -- Title Page -- Copyright -- List of Figures -- List of Tables -- Foreword -- Preface -- 1 Introduction to Welding Processes -- 1.1 Synopsis -- 1.2 Keywords -- 1.3 Welding -- 1.4 Defining Welding -- 1.5 Welding and Joining Processes -- 1.6 Arc Welding -- 1.7 Efficiency of Energy Use -- 1.8 Welding Procedures -- 1.9 Qualification of Welders and Operators -- 2 Shielded Metal Arc Welding (SMAW) -- 2.1 Synopsis -- 2.2 Keywords -- 2.3 Introduction -- 2.4 Process Fundamentals -- 2.5 How the Process Works -- 2.6 Power Sources -- 2.7 AC Power Sources -- 2.8 Direct Current Power Sources -- 2.9 Welding Safety and Personal Protecting Equipment -- 2.10 Covered Electrodes Used in SMAW Process -- 2.11 Welding Training - Making of a Welder -- 2.12 Welding Other Metals -- 2.13 Welding and Fabrication of Duplex Stainless Steels -- 2.14 SMAW Welding Nickel Alloys -- 2.15 Minimizing Discontinuities in Nickel and Alloys Welds -- 2.16 Review Your Knowledge -- 3 Gas Tungsten Arc Welding -- 3.1 Synopsis -- 3.2 Keywords -- 3.3 Introduction to Gas Tungsten Arc Welding Process -- 3.4 Process Description -- 3.5 How the Process Works -- 3.6 Process Advantages and Limitations -- 3.7 Power Sources -- 3.8 Shielding Gases -- 3.9 Gas Regulators and Flowmeters -- 3.10 GTAW Torches, Nozzles, Collets, and Gas Lenses -- 3.11 Tungsten Electrodes -- 3.12 Joint Design -- 3.13 Power Source |
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Remote Control -- 3.14 Installation of Welding Machines -- 3.15 Power Source Cooling System -- 3.16 Welding Connections - Welding Cable and Welding Torch Connections -- 3.17 Welding Power Source Classification by NEMA -- 3.18 Welding Personal Protecting Equipment -- 3.19 Other Essential Clothing for Welders -- 3.20 Filler Wires Used in GTAW Process -- 3.21 Classification and Identification of Welding Wires -- 3.22 The Aluminum Alloy Temper and Designation System. |
3.23 Welding Metals Other Than Carbon and Alloy Steels -- 3.24 GTAW Welding of Aluminum -- 3.25 GTAW Welding of Stainless Steel -- 3.26 Mechanical Properties -- 3.27 Welding Nickel Alloys -- 3.28 Later Developments in GTAW Process -- 3.29 Plasma Arc Welding -- 3.30 Review Your Knowledge -- 4 Gas Metal Arc Welding -- 4.1 Synopsis -- 4.2 Keywords -- 4.3 Introduction to Gas Metal Arc Welding Process -- 4.4 Process Description -- 4.5 Components of the Welding Arc -- 4.6 Effects of Variables on Welding -- 4.7 Advanced Welding Processes for GMAW -- 4.8 The Adaptive Loop -- 4.9 Advanced Waveform Control Technology -- 4.10 Equipment for GMAW Process -- 4.11 GMAW Power Sources -- 4.12 Installation of Welding Machines -- 4.13 Welding Various Metals -- 4.14 Welding Nickel Alloys -- 4.15 Minimizing Discontinuities in Nickel and Alloys Welds -- 4.16 Calculating Heat Input in Pulsed Arc GMAW -- 4.17 Review Your Knowledge -- 5 Flux Cored Arc Welding (FCAW) Process -- 5.1 Synopsis -- 5.2 Keywords -- 5.3 Introduction to Flux Cored Arc Welding (FCAW) Process -- 5.4 Process Description -- 5.5 Welding Wires/Electrodes -- 5.6 Power Sources -- 5.7 Other Accessories to Power Source -- 5.8 Shielding Gases -- 5.9 Welding Various Metals -- 5.10 Tips for Good Welding by FCAW Process -- 5.11 Test Your Knowledge -- 6 Submerged Arc Welding (SAW) -- 6.1 Synopsis -- 6.2 Keywords -- 6.3 Introduction to Submerged Arc Welding (SAW) Process -- 6.4 Operating Characteristics -- 6.5 Submerged Arc Welding (SAW) Process -- 6.6 How the SAW Process Works -- 6.7 SAW Process Variants -- 6.8 SAW Power Source and Equipment -- 6.9 Welding Heads (Gun) -- 6.10 Fluxes -- 6.11 Submerged Arc Welding Various Metals -- 6.12 Test Your Knowledge -- 7 Useful Data and Information Related to Welding and Fabrication -- 7.1 Common Weld Symbols and Their Meanings -- 7.2 Fillet Welds -- 7.3 Groove Welds. |
7.4 Pipe Schedule -- 7.5 Terms and Abbreviations -- 7.6 Procedure Qualification Range as Per the Material Group -- 7.7 Material Qualification Rage for Procedure Qualification Based on P-Numbers -- 7.8 Temperature Conversion -- 7.9 Useful Calculations -- 7.10 Effect of Temperature on Gas Cylinder Pressure -- Index -- End User License Agreement. |
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2. |
Record Nr. |
UNINA9911028277103321 |
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Autore |
Greco, Tommaso |
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Titolo |
Critica della ragione bellica / Tommaso Greco |
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Pubbl/distr/stampa |
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Bari ; Roma, : Laterza, 2025 |
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ISBN |
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Descrizione fisica |
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Collana |
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Disciplina |
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Locazione |
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Collocazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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3. |
Record Nr. |
UNINA9910957136803321 |
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Titolo |
Keeping score for all : the effects of inclusion and accommodation policies on large-scale educational assessments / / Committee on Participation of English Language Learners and Students with Disabilities in NAEP and Other Large-Scale Assessments ; Judith Anderson Koenig and Lyle F. Bachman, editors |
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Pubbl/distr/stampa |
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Washington, DC, : National Academies Press, c2004 |
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ISBN |
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9786610175970 |
9780309165907 |
0309165903 |
9781280175978 |
1280175974 |
9780309533171 |
0309533171 |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (150 p.) |
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Altri autori (Persone) |
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KoenigJudith A |
BachmanLyle F. <1944-> |
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Disciplina |
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Soggetti |
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Educational tests and measurements - United States - Evaluation |
Inclusive education - United States - Evaluation |
Students with disabilities - Education - United States |
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Limited English-proficient students - Education - United States |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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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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""FrontMatter""; ""Preface""; ""Contents""; ""Executive Summary""; ""1 Introduction""; ""2 Characteristics of the Students, the Assessments, and Commonly Used Accommodations""; ""3 Participation in NAEP and Other Large-Scale Assessments""; ""4 Factors That Affect the Accuracy of NAEP's Estimates of Achievement""; ""5 Available Research on the Effects of Accommodations on Validity""; ""6 Articulating Validation Arguments""; ""7 Implications of the Committee's Conclusions and Recommendations""; ""References""; ""Appendix Biographical Sketches of Committee Members and Staff"" |
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Sommario/riassunto |
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U.S. public schools are responsible for educating large numbers of English language learners and students with disabilities. This book considers policies for including students with disabilities and English language learners in assessment programs. It also examines the research findings on testing accommodations and their effect on test performance. Keeping Score for All discusses the comparability of states (TM) policies with each other and with the National Assessment of Educational Progress (NAEP) policies and explores the impact of these differences on the interpretations of NAEP results. The book presents a critical review of the research literature and makes suggestions for future research to evaluate the validity of test scores obtained under accommodated conditions. The book concludes by proposing a new framework for conceptualizing accommodations. This framework would be useful both for policymakers, test designers, and practitioners in determining appropriate accommodations for specific assessments and for researchers in planning validity studies. |
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