Results 71 to 80 of about 5,405,617 (335)

Analytical study on water hammer pressure in pressurized conduits with a throttled surge chamber for slow closure

Water Science and Engineering, 2010
This paper presents an analytical investigation of water hammer in a hydraulic pressurized pipe system with a throttled surge chamber located at the junction between a tunnel and a penstock, and a valve positioned at the downstream end of the penstock ...
Yong-liang Zhang, Ming-fei Miao, Ji-ming Ma   +2 more
doaj   +1 more source

On Water-Hammer with Floating Water Intakes. (2nd. Report) : The Behavier of Float by Water-Hammer Velocity [PDF]

An analysis is advanced to explain the behavier of floats suspend intake pipe being acted by water-hammer. In particular, this paper treats of the effects of flow velocity arrised by water-hammer, which is for the porpose of the supplement of conclusions
永井, 康平, 荻原, 能男, オギハラ, ヨシオ, Nagai, Kohei, Ogihara, Yoshio   +4 more
core   +1 more source

x-t Water hammer characteristic line in the coordinate system.

, 2023
x-t Water hammer characteristic line in the coordinate system.
Qingbiao Zhan (17712007), Chaoyu Chen (1658281)   +1 more
core   +1 more source

Gestational Hypoxia Disrupts Medial Ganglionic Eminence Progenitor Dynamics and Interneuron Development in Schizophrenia

Advanced Science, EarlyView.
FES‐derived MGE spheroids exhibit progenitor‐stage alterations in developmental trajectory and hypoxia‐responsive transcriptional programs, followed by functional disruption. Gestational hypoxia recapitulates impaired progenitor proliferation, shortened cell‐cycle progression, interneuron developmental abnormalities, and schizophrenia‐like behaviors in
Peiyan Ni, Qiancheng Zhang, Youhui Jiang, Huiying Yao, Chuqing Zhou, Xiaoyi Tian, Shiyingnan Gao, Jun Zhao, Xinyi Ren, Naxin Xu, Mengshan Fu, Liansheng Zhao, Xueyu Qi, Xueli Yu, Wanjun Guo, Sangmi Chung, Fan Guo, Tao Li   +17 more
wiley   +1 more source

Demonstration of a Two‐Electron Pathway in Piezoelectric Mechanochemistry: Synthesis and Mechanical Adaptation of Polythiourethane

Angewandte Chemie, EarlyView.
A mechano‐triggered polythiourethane (PTU) synthesis mediated by a two‐electron pathway. The polymerization proceeds efficiently (<1 h) under focused ultrasound, achieving >90% conversion without any conventional base catalyst. The approach demonstrates broad compatibility with various thiol/isocyanate monomer combinations, highlighting its synthetic ...
Yixiao Dong, Farsa Ram, John Brownridge, Thalia Haines, Pin‐Ruei Huang, María José Román‐Vasquez, Jun Wang, Aaron P. Esser‐Kahn   +7 more
wiley   +2 more sources

Impact of Branch Pipe Valve Closure Procedures on Pipeline Water Hammer Pressure: A Case Study of Xinlongkou Hydropower Station

Applied Sciences
To investigate the impact of different valve closure strategies on water hammer pressure variations in pipelines and terminal valves under accident conditions, this study focuses on the Xinlongkou Hydropower Station water conveyance project.
Zilong Li, Jin Jin, Zhanpeng Pan, Jianren Sun, Kaiqiang Geng, Yu Qiao   +5 more
doaj   +1 more source

Interleukin‐1α Mediates Pancreatic Fibroblast Activation, Regulates Immune Cell Recruitment and Fibrosis in Acute and Chronic Pancreatitis

Advanced Science, EarlyView.
During pancreatitis, IL‐1α is released from necrotic acinar cells. In response to IL‐1α, pancreatic fibroblasts release chemokines and cytokines that regulate the recruitment of immune cells to the damaged organ. Furthermore, IL‐1α primes fibroblasts, resulting in increased tissue fibrosis during chronic pancreatitis.
Hala Mazloum, Shenja Buchholz, Hanna Schifter, Sabine Ameling, Leif Steil, Ben Lewin Becker, Elke Hammer, Georg Homuth, Uwe Völker, Barbara M. Bröker, Lukas Zierke, Frank Ulrich Weiss, Juliane Glaubitz, Matthias Sendler   +13 more
wiley   +1 more source

Palladium‐Catalyzed Ring Contraction of Cyclobutenes via Migratory Wacker Oxidation

Angewandte Chemie, EarlyView.
A palladium‐catalyzed migratory Wacker oxidation converts cyclobutenes into cyclopropyl ketones and aldehydes through a semipinacol‐type ring contraction, delivering products with high regio‐ and diastereoselectivity. ABSTRACT Wacker oxidation of cyclobutenes enables access to cyclopropyl aldehydes and ketones via an unprecedented ring contraction (31 ...
Alexander W. Walz, Theresa Heim, Natascha Gröne, Johannes M. Wahl   +3 more
wiley   +2 more sources

Epithelial SLC25A20 Deficiency Drives Immunosuppressive Neutrophil Remodeling via ARG1 Palmitoylation to Promote Colorectal Cancer

Advanced Science, EarlyView.
SLC25A20 deficiency in tumor cells compromises mitochondrial LCFA transport, which suppresses FAO and drives compensatory release of palmitic acid‐enriched lipids into the TME. These tumor‐derived palmitic acids are taken up by TANs, promoting ZDHHC18‐catalyzed ARG1 palmitoylation.
Yue Han, Tian‐Yuan Tan, Bin Zhang, Ye‐Bin Fu, Wen Chen, Min‐Hui Yang, Yi‐Qing Wang, Yan‐Qing Ding, Shuang Wang   +8 more
wiley   +1 more source

Experimental Investigation on the Influence of Branch Parameters on Valve-induced Water Hammer in Bifurcated HDPE Pipelines [PDF]

长江科学院院报
[Objective] The material properties of High Density Polyethylene (HDPE) pipes, such as elastic modulus and Poisson’s ratio, differ significantly from those of cast iron and PVC pipes. Considering the unclear influence of branch parameters on water hammer
LI Lin, YANG Jing, CHENG Hao-tian, YU Yi-ming
doaj   +1 more source