Results 11 to 20 of about 703,170 (308)
A full‐domain fluidic‐thermal approach for a high‐speed PMSM considering the bearing components
IET Electric Power Applications, 2022 This paper presents a refined full‐domain model for the fluidic‐thermal coupled analyses of a 15‐kW 30,000‐rpm high‐speed permanent magnet synchronous machine (HS‐PMSM) considering the heat generation and dissipation of the bearing components.
Gaojia Zhu, Longnv Li, Ming Xue, Tao Liu
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Lubricants, 2023 Aiming to solve the problem of oil-air lubrication failure caused by the high working temperature of high-speed rolling bearings, this study proposes a method, based on the theory of gas-solid two-phase flow and bearing tribology, of predicting the ...
Xiqiang Ma +5 more
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Do rising temperatures matter [PDF]
Ecology, 2009 Relationships between the environment and population dynamics in ecology have a long history of polarized debates usually involving two alternative and opposite explanations that exclude each other. One of the best known examples is found in the early question of what regulates populations and the role of extrinsic vs.
Pascual, Mercedes, Bouma, Menno J.
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The Geographical Journal, 2022 AbstractAs an introduction to a special section on remote politics in the Arctic. We introduce how the various authors have analysed the consequences of a warming Arctic for the peoples who inhabit it and for those states seeking to retain or expand influence in this resource‐rich region.
Caroline Kennedy‐Pipe, Duncan Depledge
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Stomatal conductance increases with rising temperature [PDF]
Plant Signaling & Behavior, 2017 Stomatal conductance directly modifies plant water relations and photosynthesis. Many environmental factors affecting the stomatal conductance have been intensively studied but temperature has been largely neglected, even though it is one of the fastest changing environmental variables and it is rising due to climate change.
Urban, Josef Josefovich +3 more
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Probe on temperature rise test of mine-used switch devices
Gong-kuang zidonghua, 2014 Combining with related standards and actual work experience, the paper introduced temperature rise test method of circuit for mine-used switch electrical products, connecting wire method of temperature rise test, temperature rise test methods for ...
LI Ya
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Cumhuriyet Dental Journal, 2018 Purpose: To investigate the temperature changes in the primary teeth pulp chambers during the curing of different colored compomers Methods: Five extracted primary mandibular second molars were prepared with class II cavities.
Halenur Altan +3 more
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Wavelength of Experimental LEDS: Hardness, Elastic Modulus, Degree of Conversion and Temperature Rise of a Microhybrid Composite [PDF]
Materials Research, 2015 The aim of this study was to evaluate the effect of different peak wavelengths (450nm, 468nm and 490nm) of experimental LEDs on hardness, elastic modulus, degree of conversion and temperature rise of a microhybrid resin composite – Venus® (Heraeus Kulzer)
Ana Paula Bonilauri Ferreira +5 more
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Cumhuriyet Dental Journal, 2011 <p><strong>Purpose:</strong> This in vitro study investigated the effect of three light curing units on the temperature rise under 2 mm thick dentin during polymerization of different resin composite materials.</p> <p>< ...
Hakan Demir +3 more
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Afterword: Rising temperatures
The Geographical Journal, 2022 AbstractThis piece reviews the contributions of this special edition noting comments and insights into the rapidly changing politics of the Arctic. It highlights how the recent Russian invasion of Ukraine has had a profound impact on the High North, its peoples and its security.
Caroline Kennedy‐Pipe, Duncan Depledge
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