Results 61 to 70 of about 22,464 (227)
A High Degree of Cleanliness of the Electric Air Supply Valve Design
MATEC Web of Conferences, 2018 This paper discuss an new type servo valve, aiming at two main defects of performance of globe valve which are commonly used in mine safety cabins in China, in order to bring up a better solution to replace old valves.
Hu Luo
doaj +1 more source
Position Control of Electro‐Hydraulic Actuator System With Disturbances Compensation
Energy Science &Engineering, Volume 14, Issue 2, Page 831-842, February 2026.A novel output feedback controller based on global fast terminal sliding mode with disturbances rejection to achieve accurate position tracking control for electro‐hydraulic cylinder system, which shows the great control potential of the designed output feedback controller during the start‐up and operation of the electro‐hydraulic actuator system ...
Yunfei Wang, Haigang Ding, Jiaxiang Man
wiley +1 more source
Development of Hydraulically Driven Fatigue Testing Machine for Insulators
IEEE Access, 2018 The hydraulically driven fatigue testing machine is studied to simulate the vibration in the fatigue experiments for the insulators. First, hydraulic scheme and control principle are introduced.
Jianlin Xuan, Shoukun Wang
doaj +1 more source
Pulse-width-modulated servo valve for autopilot system [PDF]
, 1974 Valve was developed for autopilot wing-lever system and is to be used in light, single-engine aircraft. Valve is controlled by electronic circuit which feeds pulse-width-modulated correction signals to two solenoids.
Garner, H. D.
core +1 more source
Gain Stabilization of a Submillimeter SIS Heterodyne Receiver
, 2007 We have designed a system to stabilize the gain of a submillimeter heterodyne receiver against thermal fluctuations of the mixing element. In the most sensitive heterodyne receivers, the mixer is usually cooled to 4 K using a closed-cycle cryocooler ...
Battat, James +5 more
core +1 more source
Advanced Functional Materials, Volume 36, Issue 1, 2 January 2026.Advances in integrating artificial intelligence into 3D bioprinting are systematically reviewed here. Machine learning, computer vision, robotics, natural language processing, and expert systems are examined for their roles in optimizing bioprinting parameters, real‐time monitoring, quality control, and predictive maintenance.
Joao Vitor Silva Robazzi +10 more
wiley +1 more source
Dynamic modeling of fluid transmission lines of the DSN 70-meter antennas by using a lumped parameter model [PDF]
, 1992 Fluid transmission lines and fittings were found to significantly affect the dynamic and steady state operation of the engineering system in which they are incorporated.
Bartos, R. D.
core +1 more source
A parsimonious model for the proportional control valve [PDF]
, 2002 A generic non-linear dynamic model of a direct-acting electrohydraulic proportional solenoid valve is presented. The valve consists of two subsystems-s-a spool assembly and one or two unidirectional proportional solenoids.
Elmer, KF, Gentle, CR
core +1 more source
Pneumatically‐Actuated Liquid Metal‐Based Frequency Reconfigurable Antenna
Advanced Science, Volume 13, Issue 5, 27 January 2026.A look at a flexible, frequency‐tuning antenna A Soft Solution: Introducing a new antenna design made with liquid metal composites. A Full Package: Combining flexible antennas with pneumatic actuators. End‐to‐End Control: Automatic reconfiguration according to signal strength.
Yiwen Song +6 more
wiley +1 more source
Two-dimensional oscillating airfoil test apparatus [PDF]
, 1977 A two dimensional oscillating airfoil test apparatus is presented as a method of measuring unsteady aerodynamic forces on an airfoil or rotor blade section.
Gibson, F. L. +2 more
core +2 more sources