Results 11 to 20 of about 1,268 (168)
Implementation of the mechanistic wall boiling model in IC engine cooling gallery simulation [PDF]
MATEC Web of Conferences, 2018 The ever increasing power rates of modern IC engines pose a great challenge for maintaining the optimal temperature conditions. The current trend in the thermal management of IC engines is to utilize the limited and controlled nucleate boiling to achieve
Abyzov Oleg +2 more
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A gallery of cool hypergiants — imaging their circumstellar environments [PDF]
Symposium - International Astronomical Union, 2003 High resolution imaging with HST-wfpc2 of seven of the most luminous evolved cool stars shows that the three OH/IR stars NML Cyg, VX Sgr and S Per have circumstellar nebulae while no ejecta was detected for the M-type supergiant μ Cep and the yellow hypergiants ρ Cas, HR 8752 and HR 5171a.
Michael T. Schuster +4 more
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Buildings, 2023 Determining the input parameters for the calibration of a water mist extinguishing system in a compartment is important for the evaluation of the performance of the design.
Davide Berardi +2 more
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Optimization of the Location of the Oil Cooling Gallery in the Diesel Engine Piston [PDF]
The Open Mechanical Engineering Journal, 2016 The oil cooling gallery is arranged at the top of the piston, which can effectively reduce the heat load of the piston. In this paper, finite element analysis and fatigue analysis by FE-safe are used to calculate the effects of the different positions of the oil cooling gallery to the temperature, stress field and the fatigue strength of the bowl rim ...
Lijun Deng +4 more
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Nano Materials Science, 2023 Yellow light-emitting diodes (LEDs) as soft light have attracted abundant attention in lithography room, museum and art gallery. However, the development of efficient yellow LEDs lags behind green and blue LEDs, and the available perovskites yellow LEDs ...
Baiqian Wang +8 more
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Case Studies in Thermal Engineering, 2023 To further improve the thermal state of the piston for better thermal design, a multi-objective optimisation algorithm was used in this paper to find the best combination of design variables.
Yang Liu +5 more
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Fire, 2022 In this study, an underground pipe gallery was taken as the research subject to explore the influence of nitrogen injection flow rate and pipe diameter on the fire extinguishing efficiency in an underground narrow confined space.
Guowei Zhang +4 more
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Effect of flow in the circular 90-degree curved nozzles on ejecting oil jet behavior
Journal of Fluid Science and Technology, 2021 In general, technical methods for improving the thermal efficiency of an engine increase the heat load on peripheral components. Recently, a piston cooling gallery equipped with a flow path has been developed.
Mikimasa KAWAGUCHI +7 more
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MOSFET Selection for a 18ka modular power converter for HL-LHC inner triplet
Power Electronic Devices and Components, 2023 The upgrade of the Large Hadron Collider (LHC) at CERN towards the High Luminosity-LHC (HL-LHC) presents different challenges, among them, the upgrade of the power converters associated to the inner triplet magnets to reach the required rated current of ...
N. Wassinger +5 more
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Optomechanical cooling and self-stabilization of a waveguide coupled to a whispering-gallery-mode resonator [PDF]
Photonics Research, 2020 Laser cooling of mechanical degrees of freedom is one of the most significant achievements in the field of optomechanics. Here, we report, for the first time to the best of our knowledge, efficient passive optomechanical cooling of the motion of a freestanding waveguide coupled to a whispering-gallery-mode (WGM) resonator. The waveguide is an 8 mm long
Riccardo Pennetta +4 more
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