Results 91 to 100 of about 1,194 (289)

An integrated mixed refrigeration cycle for pre-cooling of refrigeration below 25 K

IOP Conference Series: Materials Science and Engineering, 2019
Two trends can be found in current large-scale cryogenic projects. The first is the ever-increasing capacity requirements, while also a shift towards cooling demands at higher temperatures is observed. Conventional helium cycles require the use of oil flooded screw compressors, which are limited in efficiency, capacity, and reliability. Reverse-Brayton
S Kloeppel, H Quack, C Haberstroh
openaire   +1 more source

Rational Design of Weakly‐Solvating Molecules for Salt‐In‐Pre‐Ionic‐Liquid Electrolytes for Li Metal Batteries

Advanced Science, EarlyView.
The weakly‐solvating TFMSPyr electrolyte tailors the Li+ solvation structure by suppressing solvent coordination and promoting anion‐dominated solvation. This unique solvation environment induces preferential anion decomposition at electrode interfaces, forming robust inorganic rich S/CEI.
Bishnu P. Thapaliya, Vaidyanathan Sethuraman, Naresh C. Osti, Arvind Ganesan, K. Shawn Reeves, Michael J. Zachman, Albina Y. Borisevich, Harry M. Meyer III, Xiao‐Guang Sun, Eugene Mamontov, Lei Cheng, Sheng Dai   +11 more
wiley   +1 more source

Investigation of Inlet Guide Vane Efficiency in Centrifugal Compressors for the Turbo Refrigeration Machines [PDF]

Problems of the Regional Energetics
The article investigates the influence of geometric parameters of inlet guide vanes (IGVs), including blade profiling and design features, on their operational efficiency.
Danilishin A.M., Kozhukhov Y. V., Fateeva E.S., Aksenov A.A.   +3 more
doaj   +1 more source

Tumor‐Infiltrating mregDCs Restrain Anti‐Tumor Immunity in Early Relapse HCC

Advanced Science, EarlyView.
Tumor‐infiltrating mregDCs are regulated by the TNFR2‐non‐canonical NF‐κB axis, which is mediated by TNF‐α secreted by CD161+CD8+ T cells. These mregDCs recruit CD161+CD8+ T cells via the CCL20‐CCR6 axis, forming a positive feedback loop that enhances immunosuppression, promotes early recurrence of HCC, and further confirms TNFR2 as a key therapeutic ...
Zefan Zhang, Lin Ding, Yu Zhong, Haokang Feng, Linglong Huang, Waidong Huang, Chunqing Wang, Arne Östman, Beili Wang, Jian Zhou, Jia Fan, Wei Guo, Liang Wu, Yunfan Sun   +13 more
wiley   +1 more source

Quantifying Structure–Property Relationships in Ferroelectric Polymers Toward High‐Performance Soft Robots

Advanced Science, EarlyView.
Here, we establish a quantitative relationship between the electrostriction coefficient (Q33) of FRPs and their interplanar spacing (d): Q33 = 100(Δd/d0+1) × Q33(s). Using this model, we fabricated high‐performance soft robots, including a biomimetic crawler (with a speed of 27 cm/s) and a butterfly (with a thrust‐to‐weight ratio of 0.71).
Ba Qin, Guotong Ding, Wanli Xing, Xiaoyu Yang, Wenxuan Li, Zhemin Chen, Shaobo Tan, Xiaoyong Wei, Zhicheng Zhang   +8 more
wiley   +1 more source

Study on a Novel Absorption Referigeration System at Low Cooling Temperatures

, 2012
A novel absorption refrigeration system is proposed in this context using R134a+R23 mixed refrigerants and DMF solvent. The new system uses two-staged absorber in series to reduce the evaporation pressure and can obtain a lower refrigeration temperature ...
Chen, Guangming, He, Yijian, Gao, Xu, Zhu, Zuwen   +3 more
core  

Electrical‐Stimulation Hydrogel Electronic Skin for Sustainable Hybrid Biomechanical–Electromagnetic Energy Harvesting and Accelerating Wound Healing

Advanced Science, EarlyView.
A hybrid biomechanical–electromagnetic energy‐harvesting e‐skin is developed using a gelatin‐based outer matrix with a zwitterionic conductive inner layer. The e‐skin autonomously generates stable electrical stimulation from daily body motion and ambient electronics, enabling significantly enhanced wound healing bothin vitro and in vivo.
Syun‐Hong Chou, Ming‐Han Lu, Wei‐Chen Peng, Wei‐Chun Yang, Pei‐Yi Liu, Yu‐Hsuan Yang, Yi‐Lin Huang, Cheng‐Hung Tsai, Ting‐Yu Yang, Xuan Zhang, Zhi‐Xian Yan, Ying‐Chih Lai, San‐Yuan Chen   +12 more
wiley   +1 more source

Measurement of local condensation heat transfer coefficient (HTC) within a brazed plate heat exchanger (BPHE) and heat transfer assessment of low-GWP R134a replacements

Case Studies in Thermal Engineering
This paper presents local condensation Heat Transfer Coefficients (HTCs) and temperature profiles of R134a and three low-GWP replacements, R1234yf, R1234ze(E), and R152a, within Brazed Plate Heat Exchangers (BPHEs).
Giovanni A. Longo, Claudio Zilio
doaj   +1 more source

Flammability Comparison and Flame Retardancy Research on R32 and R1234yf

Zhileng xuebao, 2021
Halogenated alkanes and halogenated olefins, especially fluorine substitutes, are currently the most widely used synthetic refrigerants. With the implementation of a series of increasingly stringent environmental regulations, most optional fluorinated ...
Shi Yuqi, Yang Zhao, L
doaj  

A novel two-stage ejector refrigerator with mixed refrigerants

, 2018
A novel two-stage ejector refrigerator with mixed refrigerants / Xuehui Wang, Yifan Zhou, Yini Pan, Guangming Chen ; supervisor Wang Xuehui // Black Sea Science 2018 : матеріали Міжнар. конкурсу студентських наук. робіт, Одеса, 4 квіт. 2018 р.
Chen, Guangming, Pan, Yini, Zhou, Yifan, Wang, Xuehui   +3 more
core