Results 51 to 60 of about 14,074 (238)

Iimproving heat dissipation performance of a looped thermosyphon using volatile low-GWP working fluids with a super-hydrophilic boiling surface

open access: yesNihon Kikai Gakkai ronbunshu, 2017
With rapid development of electronic devices, their internal heat generation become significantly denser. Accordingly, the thermal management becomes increasingly important for their stable operation.
Chieko KONDOU   +3 more
doaj   +1 more source

Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators

open access: yesAdvanced Materials, EarlyView.
Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng   +11 more
wiley   +1 more source

R32 And HFOs As Low-GWP Refrigerants For Air Conditioning [PDF]

open access: yes, 2012
This paper will review the status worldwide on technical and policy search for next-generation refrigerants with both low Global Warming Potential (LGWP) and low Life Cycle Climate Performance (LCCP) with particular focus on R410A replacement for unitary
Pham, Hung M., Rajendran, Rajan
core   +1 more source

The implications of residential air conditioning refrigerant choice on future hydrofluorocarbon consumption in the United States

open access: yesJournal of Integrative Environmental Sciences, 2020
As the primary alternative to ozone-depleting refrigerants, hydrofluorocarbons (HFCs) have increased in use and emissions in the United States. This increase, and a large portion of total U.S.
David S. Godwin, Rebecca Ferenchiak
doaj   +1 more source

Research progress on the flow characteristics of secondary refrigerants and application progress in aquatic products storage and preservation system

open access: yesShipin yu jixie, 2023
The secondary refrigerant is an intermediate medium for transferring cold capacity, which can improved refrigeration efficiency. In this paper, the classification and characteristics of secondary refrigerants are introduced, and discusses the flow ...
XU Xia   +4 more
doaj   +1 more source

Organic Materials of Tomorrow: Horizons of Artificial Intelligence

open access: yesAdvanced Materials, EarlyView.
This review examines machine learning techniques accelerating the discovery of organic semiconductors by linking molecular structure to properties. Key methods include graph neural networks, generative models, and active learning. Applications to organic photovoltaics demonstrate practical impact.
Harold Mena   +3 more
wiley   +1 more source

Performance Assessment of R-454C, R-449A, and R-744 in Food Retail Refrigeration Systems

open access: yesEnergies
Reduced energy use and increased energy efficiency are essential for decarbonization and sustainable development. The food cold chain is a crucial infrastructure with high energy consumption and rising demand.
William Ferretto   +2 more
doaj   +1 more source

Emergent Spin Supersolids in Frustrated Quantum Materials

open access: yesAdvanced Materials, EarlyView.
This review highlights developments in the study of spin super‐solids in frustrated quantum materials. Advanced experimental characterizations and computational studies enable a comprehensive understanding of the driving mechanisms of spin super‐solidity in various layered transition‐metal compounds, bridging materials, experiments, and theory aspects.
Yixuan Huang   +2 more
wiley   +1 more source

1,2-Difluoroethylene (HFO-1132): synthesis and chemistry

open access: yesBeilstein Journal of Organic Chemistry
This article provides a comprehensive overview of the synthesis and chemistry of 1,2-difluoroethylene (HFO-1132). The major routes for the preparation of the E- and Z-isomer of HFO-1132 are reviewed, along with the chemistry in radical, nucleophilic, and
Liubov V. Sokolenko   +2 more
doaj   +1 more source

Chloride Ions: Essential Agents for Achieving Spontaneous Delamination of MXene

open access: yesAdvanced Materials, EarlyView.
This work first identifies chloride ions as essential agents for spontaneous MXene delamination. Without Cl−, etched Ti3C2Tx remains multilayered; with Cl−, interlayer modification enables Li+ intercalation and osmotic swelling. The SPEED process couples HF‐assisted Al extraction, Cl−‐mediated interlayer expansion, and Li+‐driven swelling to produce ...
Sukhyeun Jang   +11 more
wiley   +1 more source

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