Results 41 to 50 of about 281,362 (305)

A Water Hammer Protection Method for Mine Drainage System Based on Velocity Adjustment of Hydraulic Control Valve

Shock and Vibration, 2016
Water hammer analysis is a fundamental work of pipeline systems design process for water distribution networks. The main characteristics for mine drainage system are the limited space and high cost of equipment and pipeline changing.
Yanfei Kou, Jieming Yang, Ziming Kou
doaj   +1 more source

A Simulation Calculation Method of a Water Hammer with Multpoint Collapsing

Energies, 2020
The traditional discrete vapor cavity model (DVCM) is widely used in water hammer simulation. Water column separation in pipelines is usually predicted with this model.
Li Zhao, Yusi Yang, Tong Wang, Liang Zhou, Yong Li, Miao Zhang   +5 more
doaj   +1 more source

A Biologically‐Architected Wear and Damage‐Resistant Nanoparticle Coating From the Radular Teeth of Cryptochiton stelleri

Advanced Functional Materials, EarlyView.
The ultrahard teeth of mollusks that feed on rocky substrates contain a wear‐resistant coating on their surfaces consisting of densely packed mesocrystalline magnetic nanoparticles within an organic matrix. These coatings display significant hardness and toughness through their highly controlled mesocrystalline architectures.
Taifeng Wang, Yu Chen, Ezra Sarmiento, Taige Hao, Atsushi Arakaki, Michiko Nemoto, Pablo Zavattieri, David Kisailus   +7 more
wiley   +1 more source

Simulation study of pressure wave fluctuation law along fracture under water hammer effect

Meikuang Anquan
In order to analyze the effect of water hammer effect on the propagation law of pulsating water pressure in the fissure, based on the one-dimensional transient flow model with water hammer equation of motion and continuity equation, the jump and ...
Jinqi FU, Jun NIAN, Wenxu CHENG
doaj   +1 more source

Ironwork of Teixois-Taramundi (Asturias) Spain [PDF]

, 2001
This paper describes an old ironwork placed in a Spanish village. All parts of it are studied, specially the Air supply and the Hydraulic wheel. The minimum area in the water trump for a correct air flow is calculated.
Blanco, E., Fernandez, J., Parrondo, J., Scanlon, T.J., Stickland, M.T.   +4 more
core  

High‐Resolution Characterization of Protein‐Conjugated, mRNA‐Loaded Lipid Nanoparticles by Analytical Ultracentrifugation

Advanced Functional Materials, EarlyView.
Lipid nanoparticles containing messenger RNA are characterized by sedimentation velocity analytical ultracentrifugation using UltraScan's new Custom Grid algorithm to provide multi‐dimensional distributions for partial specific volume (particle density), molar mass, sedimentation, diffusion, and hydrodynamic radius.
Sophia Bird, Connor Smith, Nahal Habibi, Samantha Rivera, Saeed Mortezazadeh, Reece Martin, Benjamin M. Geilich, Gilles Besin, Borries Demeler   +8 more
wiley   +1 more source

Spectrally Tuned Floating‐Gate Synapse Based on Blue‐ and Red‐Absorbing Organic Molecules for Wavelength‐Selective Neural Networks and Fashion Image Classifications

Advanced Functional Materials, EarlyView.
The characteristics of a vertical floating gate heterostructure transistor device that exhibits neuromorphic potentiation under visible light illumination are investigated. Due to spectrally‐tuned absorbance properties of each thin film layer and introduction of tunneling dielectric, the device enables wavelength‐selective tuning of synaptic plasticity
Seungme Kang, Jisoo Park, Jinwoong Hong, Jinmin Park, Jeongbo Lee, Hyeonjung Kim, Wonjun Shin, Eva Bestelink, Radu A. Sporea, Seyong Oh, Chung Whan Lee, Yun‐Hi Kim, Hocheon Yoo   +12 more
wiley   +1 more source

Fluorine‐Free Soft Nanocomposites for High‐Speed Liquid Impact Repellence

Advanced Functional Materials, EarlyView.
Fluorine‐free soft nanocomposite coatings are developed using silicone oil‐mediated mechanical‐stiffness control, enabling ‘dry’ liquid‐repellent surfaces that resist high‐speed water jet impacts up to ∼60 m/s. By tuning nanoparticle loading and oil content, the coatings also achieve >90% optical transparency, amphiphobicity with impact resistance to ...
Priya Mandal, Vikramjeet Singh, Rohit Gupta, Prasenjit Kabi, Manish K. Tiwari   +4 more
wiley   +1 more source

Research progress and prospect of numerical methods for modelling water hammer in hydraulic pipelines

Guan'gai paishui xuebao
【Objective】Water hammer in hydraulic pipelines is a critical hydraulic transient phenomenon that threatens the safe and stable operation of water conservancy and water supply systems.
MEI Lifang, LI Xiaogang, YANG Siqi, MA Yi, QIAO Panshipei   +4 more
doaj   +1 more source

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