Results 71 to 80 of about 1,949,528 (281)

Mixed refrigerant cooling system using non-flammable refrigerants [PDF]

, 2011
The mixed refrigerant JT (Joule-Thomson) cooling system has been investigated in this study. The mixed refrigerant is composed of completely non-flammable refrigerants while the preceding studies have focused on the flammable refrigerants.
정상권, 백승환, 황규완
core   +1 more source

Ultra‐Radiostable Covalent Conformationally Interlocked Networks Enabling a Universal Radiometal‐Labeling Platform for Cancer Radioembolization

Advanced Science, EarlyView.
Conjugated poly(imide dioxime)‐based microspheres establish a radiometal coordination‐driven conformational interlocked network with ultra‐high radiostability. This platform enables low‐temperature, multi‐radionuclide labeling for SPECT/PET/MRI imaging and radionuclide therapy. Mechanistic insights from EXAFS and DFT reveal enhanced stability, while in
Xiao Xu, Zhenwen Zhao, Yangjie Wang, Zhigang Liu, Zhijie Liu, Xiaoling Li, Zhichen Mao, Lu Xu, Gan Lin, Gang Liu, Hongjuan Ma   +10 more
wiley   +1 more source

Study on an Energy-saving Durability Test System for Reciprocating Refrigeration Compressor

Zhileng xuebao, 2013
This paper proposes an energy-saving system which is used to test the reliability of reciprocating refrigeration compressor. This system is established based on the principle of condensing of the partial refrigerant with high temperature and high ...
Wang Feng, Mi Xiaozhen
doaj  

Heat Stress Promotes Fibroblast‐Derived WNT5A Secretion Through m6A Modification to Activate Melanogenesis

Advanced Science, EarlyView.
Heat stress promotes WNT5A secretion from fibroblasts via METTL3/YTHDC1‐dependent m6A methylation. Subsequently, WNT5A binds to FZD10 on melanocytes, activating β‐catenin‐driven melanogenesis. ABSTRACT As the impact of global warming continues to intensify, the effects of heat stress on the skin are becoming increasingly evident.
Yuanyuan Wan, Yaqing Wen, Yushan Zhang, Lan Zhang, Jianjian Zhu, Zhen Tang, Ling Jiang, Chuhan Fu, Shu Zhou, Keyi Zhang, Jiangfeng Huang, Li Lei, Jing Chen, Qinghai Zeng   +13 more
wiley   +1 more source

Proposals for Next-Generation Eco-Friendly Non-Flammable Refrigerants for a −100 °C Semiconductor Etching Chiller Based on 4E (Energy, Exergy, Environmental, and Exergoeconomic) Analysis

Energies
Recent advancements in cryogenic etching, characterized by high aspect ratios and etching rates, address the growing demand for enhanced performance and reduced power consumption in electronics. To precisely maintain the temperature under high loads, the
Hye-In Jung, Chang-Hyo Son, Joon-Hyuk Lee   +2 more
doaj   +1 more source

Soft Hypoxia‐Adaptive Bioelectronics Integrating PEDOT:PSS/Polydopamine/Enzyme Biocomposites for Closed‐Loop Therapeutics of Chronic Wounds

Advanced Science, EarlyView.
Hypoxia‐adaptive bioelectronics based on poly(3,4‐ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS)/polydopamine (PDA)/enzyme biocomposites couple O2‐centric biosensing with embedded O2 therapy to address oxygen‐deficient chronic wounds. Local O2 provision restores enzyme‐based metabolite sensing, while catalase‐mediated oxygen generation and
Songrui Liu, Bowen Yang, Cao Qi, Zhijie Zhou, Haochen Zou, Anjum Qureshi, Xiao Zhao, Ting Li, Li Gao, Ye Tao, Gang Song, Pingqiang Cai, Zheng Li, Zhiyuan Liu, Dianpeng Qi, Ting Wang, Lianhui Wang   +16 more
wiley   +1 more source

Refrigerant Distribution Effects on the Performance of Microchannel Evaporators [PDF]

, 2012
The performance of air to refrigerant heat exchangers can be affected greatly by both refrigerant and air flow distribution. Maldistribution of either fluid stream can lead to reduced heat transfer effectiveness of the heat exchanger and thus lower ...
Elbel, Stefan, Bowers, Chad D., Hrnjak, Predrag S., Mai, Helena   +3 more
core   +1 more source

Dynamic Simulation on Temperature Decreasing Characteristics of Mixed-refrigerant Cryogenic Liquefaction System

Zhileng xuebao, 2015
The cooling process of mixed-refrigerant (MR) cryogenic system is time-consuming, the composition of MR has significant influence on the temperature decreasing rate, and the optimization of the MR charging process is crucial in order to obtain quick ...
Zhang Pu, Guo Kaihua, Deng Wenyuan, Deng Liqiang   +3 more
doaj   +2 more sources

Differential Tissue‐Coupled Powering for Battery‐Free Injectable Electroceuticals

Advanced Science, EarlyView.
A thread‐like injectable neural stimulator is powered through differential tissue‐coupled powering (DTCP), which harvests RF‐frequency tissue potentials with an elongated receiver while preserving a injectable cross‐section. The system integrates an ASIC, stimulation electrodes, and a portable transmitter, enabling wireless peripheral nerve stimulation,
Han Wu, Sultan Mahmud, Mali Halac, Asif Iftekhar Omi, Domenica Sofia Baez Rodas, Jeremiasz Dados, Chaojun Cheng, Anyu Jiang, Cameron Wallace, Anvi Singh, Erin Patrick, Baibhab Chatterjee, Shriya Srinivasan, Adam Khalifa   +13 more
wiley   +1 more source

Composition Change Characteristics of Non-azeotropic Mixturesof Auto- cascade Refrigeration System

Zhileng xuebao, 2016
The condensation process of non-azeotropic mixed refrigerant is a isobaric process. Meanwhile, the concentrations of vapor and liquid continuously change.
Rui Shengjun, Zhang Hua, He Tao, Luo Hao
doaj