Results 81 to 90 of about 688,532 (200)

Fuel injection assembly for gas turbine engine combustor [PDF]

, 2002
A fuel injection assembly for a gas turbine engine combustor, including at least one fuel stem, a plurality of concentrically disposed tubes positioned within each fuel stem, wherein a cooling supply flow passage, a cooling return flow passage, and a tip
Barrett, John E., Candy, Anthony J., Glynn, Christopher C.   +2 more
core   +1 more source

Improved 1-year outcomes after active cooling during left atrial radiofrequency ablation. [PDF]

J Interv Card Electrophysiol, 2023
Joseph C, Nazari J, Zagrodzky J, Brumback B, Sherman J, Zagrodzky W, Bailey S, Kulstad E, Metzl M.   +8 more
europepmc   +1 more source

Heating Hot Atmospheres with Active Galactic Nuclei

, 2007
High resolution X-ray spectroscopy of the hot gas in galaxy clusters has shown that the gas is not cooling to low temperatures at the predicted rates of hundreds to thousands of solar masses per year.
Arnaud M, B.R. McNamara, Binney J, Braginskii SI, Cavaliere A, Gallagher JS, Kronberg PP, P.E.J. Nulsen, Pedlar A, Reynolds CS, Roediger E, Sarazin CL, Spitzer L   +12 more
core   +1 more source

Design and Analysis of a Hollow Metallic Microlattice Active Cooling System for Microsatellites. [PDF]

Nanomaterials (Basel), 2022
Chen J, Liu L, Xu W, Huang X, Sheng H.
europepmc   +1 more source

Discrete-time quadrature feedback cooling of a radio-frequency mechanical resonator

, 2011
We have employed a feedback cooling scheme, which combines high-frequency mixing with digital signal processing. The frequency and damping rate of a 2 MHz micromechanical resonator embedded in a dc SQUID are adjusted with the feedback, and active cooling
H. S. J. van der Zant, H. Yamaguchi, M. Poot, Oppenheim A. V., S. Etaki   +4 more
core   +1 more source

High Temperature Magnetic Cores Based on PowderMEMS Technique for Integrated Inductors with Active Cooling. [PDF]

Micromachines (Basel), 2022
Paesler M, Lisec T, Kapels H.
europepmc   +1 more source

Self-sustained frictional cooling in active matter

Nature Communications
Cooling processes in nature are typically generated by external contact with a cold reservoir or bath. According to the laws of thermodynamics, the final temperature of a system is determined by the temperature of the environment.
Alexander P. Antonov, Marco Musacchio, Hartmut Löwen, Lorenzo Caprini   +3 more
doaj   +1 more source

Human cooling solutions: alternatives to conventional cooling solutions

Frontiers in Thermal Engineering
To break the cycle of traditional air conditioning, rising carbon emissions, and increasing urban heat, a fundamental redesign of how humans achieve thermal comfort is essential.
Elisa Y. M. Ang, Aminu Yusuf, Chew Beng Soh, Peng Cheng Wang   +3 more
doaj   +1 more source

Leveraging IoT and CFD to optimize solar PV module performance in high-temperature environments; case study: Kirkuk, Iraq

Unconventional Resources
-Solar photovoltaic (PV) systems are increasingly employed as a sustainable energy source. However, their efficiency is significantly affected by high operating temperatures, especially in regions like Kirkuk, Iraq, with high solar irradiance and ambient
Yaareb Elias Ahmed, Jagadeesh Pasupuleti, Firas Basim Ismail, Suad Hassan Danook, Fadhil Khadoum alhousni, Mohammad Reza Maghami   +5 more
doaj   +1 more source

Fail-safe system for activity cooled supersonic and hypersonic aircraft [PDF]

A fail-safe-system concept was studied as an alternative to a redundant active cooling system for supersonic and hypersonic aircraft which use the heat sink of liquid-hydrogen fuel for cooling the aircraft structure.
Braswell, D. O., Jones, R. A., Richie, C. B.   +2 more
core   +1 more source