Results 61 to 70 of about 2,083,198 (213)

Thermo-Hydraulic Analysis of a Tri-Axial High-Temperature Superconducting Power Cable with Respect to Installation Site Geography

open access: yesEnergies, 2020
Various high-temperature superconducting (HTS) power cables are being developed or are ready for commercial operation to help energy suppliers meet the growing power demand in urban areas.
Youngjun Choi   +6 more
doaj   +1 more source

The Possibility of Thermal Instability in Early-Type Stars Due to Alfven Waves

open access: yes, 1998
It was shown by dos Santos et al. the importance of Alfv\'en waves to explain the winds of Wolf-Rayet stars. We investigate here the possible importance of Alfv\'en waves in the creation of inhomogeneities in the winds of early-type stars.
Barlow M. J.   +21 more
core   +2 more sources

IMPROVING THE EFFICIENCY OF THE HEATING SYSTEM FOR PUBLIC BUILDINGS INFRASTRUCTURE IN THE CONTEXT OF DNURT

open access: yesNauka ta progres transportu, 2016
Purpose. The paper analyses the possibility and terms of increasing the efficiency of heating and ventilation systems of public buildings at the present stage of development and the specific climatic conditions of Ukraine.
O. M. Pshinko   +3 more
doaj   +1 more source

Recent Progress in Hydrogen Flammability Prediction for the Safe Energy Systems

open access: yesEnergies, 2020
Many countries consider hydrogen as a promising energy source to resolve the energy challenges over the global climate change. However, the potential of hydrogen explosions remains a technical issue to embrace hydrogen as an alternate solution since the ...
Joongoo Jeon, Sung Joong Kim
doaj   +1 more source

Method of remotely characterizing thermal properties of a sample [PDF]

open access: yes, 1992
A sample in a wind tunnel is radiated from a thermal energy source outside of the wind tunnel. A thermal imager system, also located outside of the wind tunnel, reads surface radiations from the sample as a function of time.
Heath, D. Michele   +4 more
core   +1 more source

Cycles in metabolism and heat loss [PDF]

open access: yes
Using calorimetric techniques, subjects' metabolism, thermoregulation, and body temperatures were monitored continuously for 24-hour days, using three types of experimental routines.
Annis, J. F., Troutman, S. J., Webb, P.
core   +1 more source

Development of On-Board In-Cylinder Gas Flow Model for Heat Loss Estimation of Diesel Engines

open access: yesJIRAE (International Journal of Industrial Research and Applied Engineering), 2018
Diesel engines have been demanded to further increase the thermal efficiency through precise engine control under transient driving conditions, especially, it is essential to optimize the fuel injection timing and quantity cycle-by-cycle. Conventionally,
Mitsuhisa Ichiyanagi   +4 more
doaj   +1 more source

Development of On-board Polytropic Index Prediction Model for Injection Timing Optimization of Diesel Engines

open access: yesJIRAE (International Journal of Industrial Research and Applied Engineering), 2018
Diesel engines are required to reduce exhaust emissions during real-world operations. In this regard, a new control concept called model-based control has been explored.
Mitsuhisa Ichiyanagi   +4 more
doaj   +1 more source

Effect of reinforcing submicron SiC particles on the wear of electrolytic NiP coatings Part 1. Uni-directional sliding [PDF]

open access: yes, 2006
As-plated and annealed NiP coatings and composite NiP-SiC coatings were investigated in uni-directional ball-on-disc sliding tests. Abrasive wear was noticed in the case of composite NiP coatings containing submicron SiC particles, whereas in NiP ...
Aslanyan, I. R.   +2 more
core   +2 more sources

Mathematical Modeling of Heat Transfer and Energy Efficiency in Above-Ground Outdoor Pools

open access: yesAppliedMath
Above-ground outdoor swimming pools are increasingly popular due to their affordability and ease of installation, yet maintaining optimal water temperature under variable climate conditions remains challenging.
Łukasz Dziubiński   +2 more
doaj   +1 more source

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