Results 11 to 20 of about 2,932,591 (236)

Outlet Pressure and Flow Characteristics of a New Two-Dimensional Piston Pump with an Overlapped Distributor

open access: yesEnergies, 2023
This article presents the design of a two-dimensional (2D) piston pump flow-distribution port with an overlapped structure that reduces backflow in the pump chamber and pressure ripples at the pump outlet, thus minimizing vibration and noise caused by ...
Tong Xing   +4 more
doaj   +1 more source

Effects of Proton Irradiation on the Current Characteristics of SiN-Passivated AlGaN/GaN MIS-HEMTs Using a TMAH-Based Surface Pre-Treatment

open access: yesMicromachines, 2021
This study investigated the combined effects of proton irradiation and surface pre-treatment on the current characteristics of Gallium Nitride (GaN)-based metal-insulator-semiconductor high-electron-mobility-transistors (MIS-HEMTs) to evaluate the ...
Young Jun Yoon   +6 more
doaj   +1 more source

Research on the Volumetric Efficiency of 2D Piston Pumps with a Balanced Force

open access: yesEnergies, 2020
Axial piston pumps with high rotational speeds are required in many fields to increase the power-to-weight ratio. However, three main sliding friction pairs in the pump restrict the increase in rotational speed.
Yu Huang   +4 more
doaj   +1 more source

Lunar Eclipse Analysis For KOMPSAT [PDF]

open access: yesJournal of Astronomy and Space Sciences, 1998
The Korea Muliti-Purpose Satellite(KOMPSAT) uses a sun-synchronous orbit with an altitude 685km as mission orbit and undergoes earth eclipses and infrequently lunar eclipses. Lunar eclipses occur when the moon is located between the sun and the satellite
Eunghyun Kim   +2 more
doaj  

SPECIFIC FEATURES OF ANESTHETIC SUPPORT IN THYROID SURGERY WITH NEUROMONITORING OF RECURRENT LARYNGEAL NERVES

open access: yesВестник анестезиологии и реаниматологии, 2017
The literature review describes the specifics of anesthesia when performing surgeries on the thyroid and parathyroid glands with neuromonitoring of recurrent laryngeal nerves.
M. A. Alekseev   +6 more
doaj   +1 more source

Numerical and experimental study on the churning losses of 2D high-speed piston pumps

open access: yesEngineering Applications of Computational Fluid Mechanics, 2020
This paper first introduces the structure and working principle of a 2D piston pump invented by the research team that the authors are involved with. Afterward, the mechanism of the churning losses caused by the pump’s moving parts, which are rotating in
Yu Huang   +3 more
doaj   +1 more source

Research on the Output Characteristic of a New Water Hydraulic Electrohydraulic Motor

open access: yesIEEE Access, 2023
For the hydraulic drilling tool under deep water, an integrated structure of a water hydraulic electrohydraulic motor is proposed, which consists of three parts: pump unit, motor unit, and DC brushless motor.
Tong Xing   +3 more
doaj   +1 more source

Modeling of Fiber-Constrained Planar PVC Gel Actuators

open access: yesNanomaterials, 2023
In recent years, plasticized poly (vinyl chloride) (PVC) gel has attracted increasing attention in soft robotics. However, there is scarce research on the deformation mechanism and modeling of PVC gel actuators.
Yi Li   +7 more
doaj   +1 more source

Heat Loss Analysis of a 2D Pump’s Transmission

open access: yesMachines, 2022
Highly enhanced pump power density inevitably results in a profound rise in pump temperature, which seriously influences both power loss and service performance.
Liang Chang   +4 more
doaj   +1 more source

Design and Analysis of Gallium Nitride-Based p-i-n Diode Structure for Betavoltaic Cell with Enhanced Output Power Density

open access: yesMicromachines, 2020
In this work, Gallium Nitride (GaN)-based p-i-n diodes were designed using a computer aided design (TCAD) simulator for realizing a betavoltaic (BV) cell with a high output power density (Pout).
Young Jun Yoon   +4 more
doaj   +1 more source

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