Results 21 to 30 of about 93,500 (265)

Study of New Mini-Channel Trans-Critical CO₂ Heat Pump Gas Cooler

Micromachines, 2022
A gas cooler is one of the important parts of a carbon dioxide (CO2) heat pump water heater, and it must meet the needs of not only pressurization but also heat transfer. It is important to study gas coolers. In this paper, a heat exchanger with a spiral
Jiawei Jiang, Shiqiang Liang, Can Ji, Longyan Wang, Chaohong Guo   +4 more
doaj   +1 more source

Heat transfer direction dependence of heat transfer coefficients in annuli [PDF]

Heat and Mass Transfer, 2017
The National Research Foundation of South Africa (NRF), Eskom Tertiary Education Support Programme (TESP), University of Stellenbosch / University of Pretoria, South African National Energy Research Institute (SANERI) / South African National Energy Development Institute (SANEDI), Council for Scientific and Industrial Research (CSIR), Energy Efficiency
Prinsloo, F.P.A. (Francois), Dirker, Jaco, Meyer, Josua P.   +2 more
openaire   +2 more sources

Reconstruction of transient convective heat transfer coefficients in heat transfer of gun barrels with variable coefficients

Case Studies in Thermal Engineering, 2023
On the basis of the conjugate gradient method, an inversion model of the transient convective heat transfer coefficient between the bore surface and the gunpowder gas is presented. In this study, the measured temperature at a certain depth from the bore surface is employed as input.
Shiyu Chen, Yanze Li, Jiawei Fu, Longmiao Chen, Linfang Qian   +4 more
openaire   +2 more sources

Study on Boiling Heat Transfer Characteristics of R290 in Horizontal Micro-tubes

Zhileng xuebao, 2020
In this study the boiling heat transfer characteristics of R290 in a 1, 2, and 4 mm horizontal micro-tube were investigated experimentally. The effects of mass flow rate [50-600 kg/(m2?s)], quality (0-1), and heat flux (5-20 kW/m2) on the boiling heat ...
Wang Haoyu, Liu Jianhua, Zhang Liang, Yu Xiaoxiao   +3 more
doaj  

Heat Transfer Characteristics of Condensers in Rotating Heat Pipe Grinding Wheel under Impinging Jet

Zhileng xuebao, 2023
An axial rotary heat pipe grinding wheel is a new type of grinding wheel used to strengthen the heat transfer in the grinding arc area. Its heat transfer performance directly affects the heat transfer performance of the entire heat pipe grinding wheel ...
Zhang Liyong, Chen Jiajia, Jiang Huafei, Xu Youlin   +3 more
doaj  

Performance analysis of shell and tube heat exchanger: Parametric study

Case Studies in Thermal Engineering, 2018
Enhancement of heat transfer through shell and tube exchangers stills taking high attention by researchers. The present work investigated the effect of shell diameter and tube length on heat transfer coefficient and pressure drop for shell side with both
Ammar Ali Abd, Mohammed Qasim Kareem, Samah Zaki Naji   +2 more
doaj   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

FEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto, Masatomo So, Ayako Furukawa, Kenji Sugase   +3 more
wiley   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

A novel quinazolinone insulin receptor inhibitor and its synergy with an EGFR inhibitor in glucose‐driven glioblastoma

Molecular Oncology, EarlyView.
The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka, Wioleta Cieślik, Wojciech Płaziński, Katarzyna Stępnik, Anna Boguszewska‐Czubara, Elżbieta Kot, Robert Musioł, Mateusz Jasica, Anna Mrozek‐Wilczkiewicz, Katarzyna Malarz   +9 more
wiley   +1 more source

Oncogenic DMTF1β promotes cancer cell motility by regulating autophagy through ULK1 stabilization

Molecular Oncology, EarlyView.
In the current study, we demonstrate that the oncogene DMTF1β regulates ULK1 stability by reducing its proteasomal degradation in cancer cells. This stabilization enables ULK1 to induce autophagy, which in turn facilitates cancer cell migration. Consequently, reduced DMTF1β levels lead to decreased autophagy and impaired cancer cell migration.
Jun Xu, Nicolas J. Niklaus, Anna M. Schläfli, Igor Tokarchuk, Magali Humbert, Federico La Manna, Bich Vu, David Maul, Ramin Radpour, Marianna Kruithof‐de Julio, Inti Zlobec, Jörn Dengjel, Bruce E. Torbett, Mario P. Tschan   +13 more
wiley   +1 more source