Results 21 to 30 of about 4,726,498 (283)

Influence of HPT Deformation on the Structure and Properties of Amorphous Alloys

Metals, 2020
Recent studies showed that structural changes in amorphous alloys under high pressure torsion (HPT) are determined by their chemical composition and processing regimes.
Dmitry Gunderov, Vasily Astanin
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Researching and developing remote teaching in mother tongue tuition

Education in the North, 2020
This feature describes an ongoing research and development project (2019-2022) on remote mother tongue teaching in Sweden. The project is based on the collaboration between the Department of Education, Umeå University, and the Competence Centre for ...
Fanny Pettersson, Peter Hjelm
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Assessment of Service Life of HCM12 Steel After 100 000 Hrs of Service

Archives of Metallurgy and Materials, 2016
The subject of the research was a material in the form of a ϕ38×4 pipe from HCM12 steel used for steam superheater coils in power boilers with supercritical and ultra-supercritical steam parameters.
Zieliński A., Paszkowska H., Skupień P., Golański G.   +3 more
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Changes In Properties and Microstructure of High-Chromium 9-12%Cr Steels Due to Long-Term Exposure at Elevated Temperature

Archives of Metallurgy and Materials, 2016
This paper presents the characteristics of the performance of P91 (X10CrMoVNb9-1), P92 (X10CrWMoVNb9-2) and VM12 (X12CrCoWVNb12-2-2) steels used for condition assessment of the pressure components of boilers with supercritical steam parameters.
Zieliński A., Dobrzański J., Purzyńska H., Golański G.   +3 more
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Angle Control-Based Multi-Terminal Out-of-Step Protection System

Energies, 2017
From time to time a sequence of unexpected and overlapping contingencies may lead to power system angular instability and even blackouts if not addressed adequately by means of an out-of-step (OOS) protection system.
Antans Sauhats, Andrejs Utans, Dmitrijs Antonovs, Andrejs Svalovs   +3 more
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Business model framework for education technology entrepreneurs in South Africa

The Southern African Journal of Entrepreneurship and Small Business Management, 2022
Background: Education technology (EdTech) has been proven to make a positive impact on education outcomes in developed economies. There is an immense untapped opportunity to introduce more EdTech into the basic education ecosystem to help with the ...
Adrian von Maltitz, Elma van der Lingen
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Textbooks for K-12 Astronomy [PDF]

Highlights of Astronomy, 2005
AbstractI report on American textbooks for kindergarten through highschool grades. Middle school, up through approximate age 15, is the last time American students are required to take science, and I provide statistics on the narrowing of the funnel containing those taking physics. I describe some recent curriculum and standards projects, and I discuss
openaire   +1 more source

Physical and Technical Foundations of the Use of Alternating Free Bending for Producing Long-length Semi-products from Metals and Alloys with Improved Mechanical Properties

Metals, 2020
In this work, we give a theoretical justification of the non-monotonic character of strain in the process of refinement and formation of a grain-type structure during the deformation processing of low-alloyed copper heat-hardenable alloys.
Georgy Raab, Farid Utyashev, Rashid Asfandiyarov, Arseniy Raab, Denis Aksenov, Ilyas Kodirov, Miloš Janeček, Tomáš Krajňák   +7 more
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EcoCyc: fusing model organism databases with systems biology. [PDF]

, 2012
EcoCyc (http://EcoCyc.org) is a model organism database built on the genome sequence of Escherichia coli K-12 MG1655. Expert manual curation of the functions of individual E.
Bonavides-Martínez, César, Collado-Vides, Julio, Fulcher, Carol, Gama-Castro, Socorro, Gunsalus, Robert P, Huerta, Araceli M, Karp, Peter D, Keseler, Ingrid M, Kothari, Anamika, Krummenacker, Markus, Latendresse, Mario, Mackie, Amanda, Muñiz-Rascado, Luis, Ong, Quang, Paley, Suzanne, Paulsen, Ian, Peralta-Gil, Martin, Santos-Zavaleta, Alberto, Schröder, Imke, Shearer, Alexander G, Subhraveti, Pallavi, Travers, Mike, Weerasinghe, Deepika, Weiss, Verena   +23 more
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Praktikerinnen und Praktiker im Computational Thinking Unterricht.

Medienimpulse, 2020
Wie können PraktikerInnen den Unterricht gerade im Bereich des Informatischen Denkens - im Englischen Computational Thinking - bereichern und so die Zukunft der Schulen nachhaltig verändern.
Michael Pollak
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