Results 21 to 30 of about 724,849 (319)

Efficient Poisson’s Ratio Evaluation of Weft-Knitted Auxetic Metamaterials

open access: yesTextiles, 2023
Auxetic metamaterials expand transversely when stretched longitudinally or contract transversely when compressed, resulting in a negative Poisson’s ratio (NPR).
Kun Luan   +4 more
doaj   +1 more source

SYMPATHETIC COOLING OF LITHIUM BY LASER-COOLED CESIUM [PDF]

open access: yesLaser Spectroscopy, 2002
We present first indications of sympathetic cooling between two neutral, optically trapped atomic species. Lithium and cesium atoms are simultaneously stored in an optical dipole trap formed by the focus of a CO$_2$ laser, and allowed to interact for a given period of time. The temperature of the lithium gas is found to decrease when in thermal contact
Kraft, S.   +5 more
openaire   +3 more sources

Pre-cooling for endurance exercise performance in the heat: a systematic review [PDF]

open access: yes, 2012
Background Endurance exercise capacity diminishes under hot environmental conditions. Time to exhaustion can be increased by lowering body temperature prior to exercise (pre-cooling).
Hemmings, S   +19 more
core   +1 more source

Heat Transfer Performance in a Vertical Grooved Thermosyphon

open access: yesInternational Journal of Thermofluids, 2021
The performance of a grooved copper-water thermosyphon with a modest bend between a vertical evaporator section and inclined condenser section was characterized for a moderate fluid loading.
M.G. Hammouda   +3 more
doaj   +1 more source

Highway to the Comfort Zone: History of the Psychrometric Chart

open access: yesBuildings, 2023
The psychrometric chart is the most common data visualization technique for the designers of thermal comfort systems worldwide. From its humble roots as means of expressing the characteristics of air in building systems design, the use of the chart has ...
Eric Teitelbaum   +2 more
doaj   +1 more source

Hydrodynamic Lubrication Effects of Multiple Circular Bump Pattern for a Thrust Sliding Bearing of a Scroll Compressor

open access: yesTribology Online, 2012
The optimum texturing pattern for a thrust sliding bearing of a scroll compressor was investigated. As the basis of lubrication analysis for multiple circular bumps pattern, fundamental hydrodynamic lubrication effects of the axisymmetric circular ...
Sanemasa Kawabata   +4 more
doaj   +1 more source

Sensitivity Studies of a Low Temperature Low Approach Direct Cooling Tower for Building Radiant Cooling Systems

open access: yes, 2012
Recent interest in cooling towers as a mechanism for producing chilled water, together with the evolution of radiant cooling, have prompted a review of evaporative cooling in temperate maritime climates.
Nasrabadi, Mehdi   +3 more
core   +1 more source

Measuring the Effectiveness of Virtuous Pedagogy: A Quantitative Study of the What If Learning Approach in Church of England Schools

open access: yesEducation Sciences, 2020
What If Learning is a pedagogical approach that allows teachers to deliver traditional content, as prescribed by national curricula, while at the same time promoting character virtues fundamental to Christian ethos.
Sabina Hulbert   +2 more
doaj   +1 more source

The effect of misalignment on the performance of tilting pad thrust bearing with TEHD coupling model and turbulence model

open access: yesAdvances in Mechanical Engineering, 2023
A thermoelastohydrodynamic (TEHD) coupling model is developed to study the static performance of a heavy-duty tilting pad thrust bearing (TPTB) under the effect of axis misalignment.
Binbin Liu   +5 more
doaj   +1 more source

Optimisation of Continuous and Pulsed Cooling in Injection Moulding Processes

open access: yes, 2007
The concept of pulsed cooling in injection moulding involves cycling the flow of coolant in order that cooling only takes place as and when it is required, as opposed to continuous cooling, where the coolant in run through the channels throughout the ...
B. A. McCalla   +14 more
core   +1 more source

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