Results 81 to 90 of about 4,722,370 (297)

Transient refrigerant distribution in a microchannel heat exchanger heat pump system under different reverse cycle defrosting strategies

open access: yesCase Studies in Thermal Engineering
The migration and redistribution of refrigerant are critical factors that affect the refrigeration system performance. To improve the defrosting and start-up heating performance, it is essential to investigate the transient distribution characteristics ...
Tong Xiong   +3 more
doaj   +1 more source

Laser‐Assisted Phase Engineering of 2D MoS2 for Efficient Solution‐Processed Electronics

open access: yesAdvanced Materials, EarlyView.
Here, local laser‐assisted phase transition from solution‐processed phase‐pure 1T′ to 2H MoS2 is shown to critically depend on the irradiation atmosphere. While processing in air leads to damaged insulating regions, inert conditions yield semiconducting 2H domains, enabling direct field‐effect transistor patterning with optimized lateral 1T′‐2H MoS2 ...
Anna Zhuravlova   +10 more
wiley   +1 more source

Sensitivity Analysis of Cryogenic Cooling on Machining of Magnesium Alloy AZ31B-O [PDF]

open access: yes, 2015
Improving the corrosion resistance of magnesium alloys has gained special focus in recent years, and cryogenic machining has been one of the successfully used techniques.
OUTEIRO, José   +3 more
core   +1 more source

Numerical Study of Flow Maldistribution in Multi-Plate Heat Exchangers Based on Robust 2D Model

open access: yesEnergies, 2018
Plate heat exchangers (PHE) are characterized by high heat transfer efficiency and compactness. An exploitation problem of the PHE is related to flow maldistribution, which can make part of the PHE idle, resulting in overheating and damage.
Arkadiusz Brenk   +2 more
doaj   +1 more source

Weak In‐Plane Ferromagnetism and Electronic Nematicity in the Distorted Triple‐Q Magnetic Phase of Co1/3TaS2

open access: yesAdvanced Materials, EarlyView.
Co1/3TaS2${\rm Co}_{1/3}{\rm TaS}_{2}$ hosts a triple‐Q noncoplanar antiferromagnetic state with coexisting Z3${\rm Z}_3$ electronic nematicity. We report rotational hysteresis observed in both magnetoresistance and magnetic torque, revealing strongly pinned in‐plane weak ferromagnetic moments in the triple‐Q phase and the magnetism‐driven nature of ...
Joonyoung Choi   +5 more
wiley   +1 more source

An Experimental Study on the Large-Volume Liquid Hydrogen Release in an Open Space

open access: yesApplied Sciences
Liquid hydrogen is one of the high-quality energy carriers, but a large leak of liquid hydrogen can pose significant safety risks. Understanding its diffusion law after accidental leakage is an important issue for the safe utilization of hydrogen energy.
Zhao Zhang   +11 more
doaj   +1 more source

Exergetic Analysis, Optimization and Comparison of LNG Cold Exergy Recovery Systems for Transportation

open access: yesEntropy, 2018
LNG (Liquefied Natural Gas) shares in the global energy market is steadily increasing. One possible application of LNG is as a fuel for transportation.
Paweł Dorosz   +2 more
doaj   +1 more source

Defect‐Templated Phase Engineering in Atomically Thin Metals

open access: yesAdvanced Materials, EarlyView.
Graphene defects are transformed from passive imperfections into programmable templates for phase‐selective growth of atomically thin silver. Plasma‐generated boundary defects favor Ag(1), whereas sp3‐rich zero‐layer graphene promotes Ag(2). This defect‐directed intercalation links local graphene chemistry to crystalline phase, electronic structure ...
Arpit Jain   +25 more
wiley   +1 more source

Introduction to cryogenic engineering

open access: yes, 2005
Cryogenic engineering is one of the key technologies at CERN. It is widely used in research and has many applications in industry and last but not least in medicine. In research cryogenic engineering and its applications are omnipresent from the smallest
Perinic, Goran   +2 more
core  

Spallation target cryogenic cooling design challenges at the European Spallation Source

open access: yes, 2015
The European Spallation Source (ESS) project is a neutron spallation source research facility currently being designed and built outside of Lund, Sweden.
Ringner, J.   +5 more
core   +1 more source

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