Results 31 to 40 of about 803,393 (302)

An Investigation of the Novel Testing Setup for the Dynamic Characterization of Super High-Pressure High-Speed Switch Valves

IEEE Access, 2020
A novel design of the setup for testing super high-pressure high-speed switch valves is proposed that provides more accurate dynamic characteristics and reduces the hardware and energy expenses.
Chuan Ding, Yu Huang, Yuhui Zhu, Shuo Liu, Li Liu   +4 more
doaj   +1 more source

Numerical Modeling and Experimental Study on the Material Removal Process Using Ultrasonic Vibration-Assisted Abrasive Water Jet

Frontiers in Materials, 2022
Currently, micro-abrasive water jet machining has the problem of insufficient processing capacity in the central area. To assist with improving the processing efficiency, ultrasonic vibration is introduced.
Zhichao Cheng, Zhichao Cheng, Shikang Qin, Shikang Qin, Zhufang Fang, Zhufang Fang   +5 more
doaj   +1 more source

Research on the distribution structure of 2D piston electro-hydraulic pump based on fluid-structure interaction

Advances in Mechanical Engineering
To address the drawbacks of traditional hydraulic power units, we embedded a 2D piston pump inside the motor rotor, proposing a 2D piston electro-hydraulic pump.
Xin-Guo Qiu, Kui-Ge Chen, Ping Wu, Ying Zheng, Chen Wang, Xing-Jian Ji   +5 more
doaj   +1 more source

Conflict Resolution for Product Performance Requirements Based on Propagation Analysis in the Extension Theory

Advances in Mechanical Engineering, 2014
Traditional product data mining methods are mainly focused on the static data. Performance requirements are generally met as possible by finding some cases and changing their structures.
Yanwei Zhao, Huanhuan Hong, Gaochao Jiang, Weigang Chen, Hongwei Wang   +4 more
doaj   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

A position-free control strategy in the full speed domain based on an electro-hydraulic pump

Measurement + Control
The electric plunger hydraulic pump plays a crucial role in hydraulic transmission technology by integrating an electric motor and a hydraulic pump. The main objectives in designing such devices are to improve efficiency, achieve miniaturization, and ...
Xinguo Qiu, Tong Shen, Fucheng Wang, Xiaohang Jin, Ying Zheng   +4 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Research on a Novel Flowmeter With Parallel Two-Dimensional Pistons as Its Metering Units

IEEE Access, 2019
Flowmeters play a critical role in hydraulic systems. Following a review of positive displacement flowmeters, we hereby introduce a novel positive displacement flowmeter with parallel two-dimensional pistons as metering units.
Chuan Ding, Yuhui Zhu, Li Liu, Chengwei Tong, Jian Ruan   +4 more
doaj   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

The purpose of education in Colombia [PDF]

, 1987
Cuando se aborda el tema de la finalidad de la educación es indispensable hacer una primera precisión, que consiste en definir sí la discusión se y centra en los enunciados verbales consignados en documentos y hormas curriculares, o sí el punto de ...
Cajiao Restrepo, Francisco
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