Results 1 to 10 of about 78,610 (291)

Cryogenic Cooling in Wireless Communications [PDF]

open access: yesEntropy, 2019
Improving the capacity and performance of communication systems is typically achieved by either using more bandwidth or enhancing the effective signal-to-noise ratio (SNR).
Tomasz G. Markiewicz   +1 more
doaj   +4 more sources

Innovative cryogenic cooling material using spin frustration from abundant elements [PDF]

open access: yesScientific Reports
Cryogenic cooling technology is essential for modern applications, such as magnetic resonance imaging and quantum computing; however, it currently relies heavily on critical resources such as helium and heavy rare-earth elements.
Noriki Terada   +3 more
doaj   +2 more sources

Effect of Deep Cryogenic Treatment Cooling Rates on Microstructure and Thermal Stress of 304LN Welding Joint [PDF]

open access: yesCailiao Baohu, 2021
In order to investigate the influence of the cooling rate on the microstructure and thermal stress of 304LN welded joints during cryogenic treatment, 304LN welded steel plates were subjected to cryogenic treatment with 2 K/min, 5 K/min, respectively. And
HE Lang
doaj   +1 more source

SiC and GaN Devices With Cryogenic Cooling

open access: yesIEEE Open Journal of Power Electronics, 2021
This article presents the cryogenically cooled application for wide bandgap (WBG) semiconductor devices. Characteristics of silicon carbide (SiC) and gallium nitride (GaN) at cryogenic temperatures are illustrated.
Ruirui Chen, Fei Fred Wang
doaj   +1 more source

Perspectives on Electric Machines with Cryogenic Cooling

open access: yesEnergies, 2023
Cryogenic cooling is a well-established and expanding technology. In the field of electric machines, it allows the construction of more efficient machines with a high power density.
Fabrizio Marignetti, Guido Rubino
doaj   +1 more source

Cryogenically cooled 946nm Nd:YAG laser [PDF]

open access: yesAdvanced Solid-State Lasers Congress, 2013
We present the first multi-Watt demonstration of a diode pumped cryogenically cooled neodymium-doped yttrium aluminum garnet (YAG) laser operating at 946 nm on the (4)F(3/2) → (4)I(9/2) transition. 3.8 W of continuous wave output power for 12.8 W of absorbed pump was obtained with a slope efficiency of 47%.
Yoon, S.J., Mackenzie, J.I.
openaire   +5 more sources

Current Status of Hard Turning in Manufacturing: Aspects of Cooling Strategy and Sustainability

open access: yesLubricants, 2023
In recent years, hard turning has been found to be a well-known substitute for traditional grinding for acquiring the finish quality of hardened steel without sacrificing productivity.
Rajashree Mallick   +3 more
doaj   +1 more source

Comparison of Machining Performance of Ti-6Al-4V under Dry and Cryogenic Techniques Based on Tool Wear, Surface Roughness, and Power Consumption

open access: yesLubricants, 2023
The machining of Ti-6Al-4V alloys is challenging due to their high strength, poor thermal conductivity, and high chemical reactivity. When used in traditional machining, cryogenic coolants can reduce tool wear, thus extending tool life, improving surface
Dhvanil Chauhan   +4 more
doaj   +1 more source

Ti:Sa Crystals in Ultra-High Peak and Average Power Laser Systems

open access: yesCrystals, 2021
In this paper, Ti:Sa amplifiers with crystals of the different geometries are discussed. Benefits of using this active medium for a thin disk (TD) and slab amplifiers are evaluated numerically and tested experimentally.
Vladimir Chvykov
doaj   +1 more source

Innovative neon refrigeration unit operating down to 30 K [PDF]

open access: yesMATEC Web of Conferences, 2020
A new compact, low-cost, economically competitive and environmentally friendly cryogenic system for cooling a continuous gas flow down to about 30 K is under developing at the ILK Dresden, reported in this paper.
Dalakov Petar   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy