Auroral Interactions with Issa

Auroral Interactions with Issa
Author: National Aeronautics and Space Adm Nasa
Publisher: Independently Published
Total Pages: 26
Release: 2018-10-25
Genre: Science
ISBN: 9781729183397

Due to its high inclination orbit, International Space Station Alpha (ISSA) will occasionally experience surface charging by the high energy electrons of the auroral environment. This study looks at the frequency of these occurrences and recapitulates a charging model. ISSA should expect about 80 auoral encounters annually. If the plasma contactor is not run continuously, the vehicle may charge several hundred volts. Charge storage on standard space station coatings should not be a problem, but care must be taken that materials are not introduced inadvertently that cannot bleed off accumulated charge in a reasonable time. A conductivity requirement may be used to ensure surface materials do not charge to high voltages, or store charge for long periods of time. Purvis, Carolyn K. and Snyder, David B. and Jongeward, Gary A. Glenn Research Center RTOP 233-01-0E

Protection of Materials and Structures from Space Environment

Protection of Materials and Structures from Space Environment
Author: J. Kleiman
Publisher: Springer Science & Business Media
Total Pages: 553
Release: 2006-03-09
Genre: Science
ISBN: 1402025955

This publication presents the proceedings of ICPMSE-6, the sixth international conference on Protection of Materials and Structures from Space Environment, held in Toronto May 1-3, 2002. The ICPMSE series of meetings became an important part of the LEO space community since it was started in 1991. Since then, the meeting has grown steadily, attracting a large number of engineers, researchers, managers, and scientists from industrial companies, scientific institutions and government agencies in Canada, U. S. A. , Asia, and Europe, thus becoming a true international event. This year’s meeting is gaining even stronger importance with the resumption of the ISS and other space projects in LEO, GEO and Deep Space. To reflect on these activities, the topics in the program have been extended to include protection of materials in GEO and Deep Space. The combination of a broad selection of technical and scientific topics addressed by internationally known speakers with the charm of Toronto and the hospitality of the organizers brings participants back year after year. The conference was hosted and organized by Integrity Testing Laboratory Inc. (ITL), and held at the University of Toronto’s Institute for Aerospace Studies (UTIAS). The meeting was sponsored by the Materials and Manufacturing Ontario (MMO) and the CRESTech, two Ontario Centres of Excellence; Air Force Office of Scientific Research (AFOSR/NL); MD Robotics; EMS Technologies; The Integrity Testing Laboratory (ITL); and the UTIAS.

The Impact of School Infrastructure on Learning

The Impact of School Infrastructure on Learning
Author: Peter Barrett
Publisher: World Bank Publications
Total Pages: 71
Release: 2019-02-04
Genre: Education
ISBN: 1464813787

'The Impact of School Infrastructure on Learning: A Synthesis of the Evidence provides an excellent literature review of the resources that explore the areas of focus for improved student learning, particularly the aspiration for “accessible, well-built, child-centered, synergetic and fully realized learning environments.†? Written in a style which is both clear and accessible, it is a practical reference for senior government officials and professionals involved in the planning and design of educational facilities, as well as for educators and school leaders. --Yuri Belfali, Head of Division, Early Childhood and Schools, OECD Directorate for Education and Skills This is an important and welcome addition to the surprisingly small, evidence base on the impacts of school infrastructure given the capital investment involved. It will provide policy makers, practitioners, and those who are about to commission a new build with an important and comprehensive point of reference. The emphasis on safe and healthy spaces for teaching and learning is particularly welcome. --Harry Daniels, Professor of Education, Department of Education, Oxford University, UK This report offers a useful library of recent research to support the, connection between facility quality and student outcomes. At the same time, it also points to the unmet need for research to provide verifiable and reliable information on this connection. With such evidence, decisionmakers will be better positioned to accurately balance the allocation of limited resources among the multiple competing dimensions of school policy, including the construction and maintenance of the school facility. --David Lever, K-12 Facility Planner, Former Executive Director of the Interagency Committee on School Construction, Maryland Many planners and designers are seeking a succinct body of research defining both the issues surrounding the global planning of facilities as well as the educational outcomes based on the quality of the space provided. The authors have finally brought that body of evidence together in this well-structured report. The case for better educational facilities is clearly defined and resources are succinctly identified to stimulate the dialogue to come. We should all join this conversation to further the process of globally enhancing learning-environment quality! --David Schrader, AIA, Educational Facility Planner and Designer, Former Chairman of the Board of Directors, Association for Learning Environments (A4LE)