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Record Nr. |
UNINA9910789129403321 |
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Titolo |
Advances in hot metal extrusion and simulation of light alloys : selected, peer reviewed papers from the International Conference on Extrusion and Benchmark (ICEB 2013), October 8-9, 2013, Dortmund, Germany. / / edited by A. Erman Tekkaya and Andreas Jäger |
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Pubbl/distr/stampa |
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Zurich, Switzerland : , : Trans Tech Publications, , 2014 |
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©2014 |
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ISBN |
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Descrizione fisica |
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1 online resource (173 p.) |
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Collana |
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Key Engineering Materials, , 1662-9795 ; ; Volume 585 |
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Altri autori (Persone) |
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TekkayaA. Erman |
JägerAndreas |
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Disciplina |
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Soggetti |
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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 at the end of each chapters and indexes. |
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Nota di contenuto |
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Advances in Hot Metal Extrusion and Simulation of Light Alloys; Preface and Committees; Table of Contents; I. Keynote; Metallurgical and Engineering Challenges in Magnesium Extrusion; II. Extrusion Benchmark; Extrusion Benchmark 2013 - Experimental Analysis of Mandrel Deflection, Local Temperature and Pressure in Extrusion Dies; III. Friction Evaluation; Experimental Investigations of Friction Carried out with the Tribo-Torsion-Test and Frictional Modelling; A New High Speed Friction Test for Extrusion Processes; Advanced Frictional Models for Extrusion Application; IV. Material Flow |
Numerical Analysis on Surface Ductile Fractures for Some Extrusion ConditionsA New Constitutive Model Describing the Plastic Flow of Metals: Application to the AA6082 Aluminum Alloy; A Novel Method for 3D-Die Design in the Extrusion Process Using Equi-Potential Lines; On the Balance of the Metal Flow in Porthole Dies with Differently Sized Porthole Channels; Simulation of Material Flow Coupled with Die Analysis in Complex Shape Extrusion; V. Seam Welding Phenomena |
Finite Element Based Determination and Optimization of Seam Weld Positions in Porthole Die Extrusion of Double Hollow Profile with Asymmetric Cross SectionNon-Destructive Detection of Weld Seams in |
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Extruded Aluminum Profiles; Comparison of Bulge Test vs. Conical Expansion Test for Hollow Extruded Profile Characterization; VI. Microstructure; Prediction of Fibrous and Recrystallized Structures in 6xxx Alloy Extruded Profiles; Tool Design Induced Anisotropic Flow Behavior of Hot Extruded Aluminum Profiles; VII. Processes and Process Optimization |
Research on the Influence of Die Shape in Complex Extrusion of Multi BilletsManufacturing of Steel-Reinforced Aluminum Parts by Co-Extrusion and Subsequent Forging; Optimal Design and Experimental Investigations of Aluminium Extrusion Profiles for Lightweight of Car Bumper; Improved Extrudability of High Strength Alloys Using an Optimization Method Based on a Combination of Experiments and FEM Software; Keywords Index; Authors Index |
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Sommario/riassunto |
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The International Conference on Extrusion and Benchmark was held for the fourth time. Invited keynote speakers and contributors from academia and industry reported on the latest advances in extrusion technology and its simulation. The contributions covered a wide range of topics and are grouped into the categories of: benchmark, microstructure, seam welds & composite extrusion, material flow & constitutive equations, friction evaluation, dies & tools, and process control & optimization. However, many more topics such as new materials and new profiles have also been covered. The keynote address |
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2. |
Record Nr. |
UNINA9910965803703321 |
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Titolo |
Reporting test results for students with disabilities and English-language learners : summary of a workshop / / Judith Anderson Koenig, editor |
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Pubbl/distr/stampa |
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Washington, DC, : National Academy Press, c2002 |
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ISBN |
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0-309-16938-0 |
1-280-18353-5 |
9786610183531 |
0-309-50006-0 |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (102 p.) |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Examinations - Interpretation |
Students with disabilities |
English language - Study and teaching - Foreign speakers |
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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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"Board on Testing and Assessment, Center for Education, Division of Behavioral and Social Sciences and Education." |
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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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""Front Matter""; ""Acknowledgments""; ""Contents""; ""1 Introduction""; ""2 Background and Problem Statement""; ""3 Legal and Political Contexts for Including Students with Special Needs in Assessment Programs""; ""4 State Policies on Including, Accommodating, and Reporting Results for Students with Special Needs""; ""5 Policies and Experiences in Two States""; ""6 Effects of Accommodations on Test Performance""; ""7 Summing Up: Synthesis of Issues and Directions for Future Study""; ""References""; ""Appendix A Workshop Agenda""; ""Appendix B Workshop Participants"" |
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Sommario/riassunto |
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At the request of the U.S. Department of Education, the National Research Council's (NRC) Board on Testing and Assessment (BOTA) convened a workshop on reporting test results for individuals who receive accommodations during large-scale assessments. The workshop brought together representatives from state assessment offices, individuals familiar with testing students with disabilities and English-language learners, and measurement experts to discuss the |
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policy, measurement, and score use considerations associated with testing students with special needs. |
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