Results 41 to 50 of about 78,610 (291)

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

open access: yesAdvanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

钛合金车削中的低温喷雾射流冷却技术

open access: yesJixie chuandong, 2009
The cryogenic mist jet cooling technology is applied to turning process of TC4 titanium alloy which uses cryogenic mist jet with pure water and cryogenic gas as cooling substance.And it is compared with the cryogenic cold wind cooling technology and the ...
王远
doaj  

Application of Cryogenic Technologies in Deformation Processing of Metals

open access: yesУспехи физики металлов
The publications in the field of cryogenic-technologies’ applications in the processes of the thermal and deformation treatments of metals are reviewed.
I.E. Volokitina, A.I. Denissova, A.V. Volokitin, T.D. Fedorova, and D.N. Lavrinuk
doaj   +1 more source

Unprecedented Spin‐Lifetime of Itinerant Electrons in Natural Graphite Crystals

open access: yesAdvanced Functional Materials, EarlyView.
Graphite exhibits extraordinary spintronic potential, with electron spin lifetimes reaching 1,000 ns at room temperature ‐ over 100 times longer than graphene‐based devices. Magnetic resonance spectroscopy reveals strong anisotropy: out‐of‐plane spins live 50 times longer than their in‐plane counterparts.
Bence G. Márkus   +5 more
wiley   +1 more source

Application of Carbon Dioxide Snow in Machining of CGI using an Additively Manufactured Turning Tool

open access: yesJournal of Manufacturing and Materials Processing, 2019
The application of conventional cooling lubricants for the tribological conditioning of machining processes involves high additional costs and health risks.
Thomas Heep   +2 more
doaj   +1 more source

The cryogenic control system of BEPCII

open access: yesEPJ Techniques and Instrumentation, 2021
The BEPCII project is for upgrading the Beijing Electron Positron Collider to reach a higher luminosity. The cryogenic system has been firstly designed and deployed in BEPCII, which provides cooling capacity for SRF cavities, SCQ and SSM.
Gang Li   +8 more
doaj   +1 more source

Cryogenic waveguide window is sealed with plastic foam [PDF]

open access: yes, 1964
Waveguide windows made with polystyrene preformed plastic and sealed with foamed-in-place plastic are useful in any microwave waveguide system using cryogenic ...
Clauss, R., Stelzried, C. T.
core   +1 more source

????????? ?????? ?????? ?????? ?????? ????????? ?????? ?????? ?????? [PDF]

open access: yes, 2017
Cryogenic machining uses liquid nitrogen (LN2) as a coolant. This machining process can reduce the cutting temperature and increase tool life. Titanium alloys have been widely used in the aerospace and automobile industries because of their high strength-
Kim, Do Young   +2 more
core   +1 more source

In Situ Study of Resistive Switching in a Nitride‐Based Memristive Device

open access: yesAdvanced Functional Materials, EarlyView.
In situ TEM biasing experiment demonstrates the volatile I‐V characteristic of MIM lamella device. In situ STEM‐EELS Ti L2/L3 ratio maps provide direct evidence of the oxygen vacancies migrations under positive/negative electrical bias, which is critical for revealing the RS mechanism for the MIM lamella device.
Di Zhang   +19 more
wiley   +1 more source

Heating and cooling system [PDF]

open access: yes, 1982
A heating and cooling apparatus capable of cyclic heating and cooling of a test specimen undergoing fatigue testing is discussed. Cryogenic fluid is passed through a block clamped to the speciment to cool the block and the specimen.
Gardner, M. R., Imig, L. A.
core   +1 more source

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