Results 61 to 70 of about 2,998,373 (268)
The Method of Energy Saving in Beam Pumping Unit Based on Genetic Algorithm
AASRI Procedia, 2012 Abstract The load of beam pumping unit is changeable, which is often in a state of light load. Reducing a certain voltage can improve the power factor and efficiency of the beam pumping unit when in light load .We can change the voltage by changing the thyristor trigger angle.
Xinping, Liu, Junpeng, Xu
openaire +1 more source
Fast Hydrogel Micro‐Actuators Driven by Electric Fields
Advanced Materials, EarlyView.We report the fabrication of chemically programmable electroactuating microstructures through the first integration of two‐photon polymerization with electrically actuated gelatin methacrylate‐based hydrogels. By tailoring the charge of the polymer network, we demonstrate programmable polarity‐dependent bending, enabling microstructures that ...
Annaël Sort‐Montenegro +6 more
wiley +1 more source
Design and Development of Multi-mode Control System for Beam Pumping Unit
Shiyou jixie, 2018 In order to deal with the complicated and variable working conditions in the production process of the pumping unit, a multi-mode control system of the beam pumping unit is designed.
Ren Xuhu +5 more
doaj
Advanced Materials, EarlyView.Heterostructure photodiode devices of p‐type WSe2 with n‐type NiPS3 constructs spectrally protected spin‐polarized photocurrents. The energy of the excitation photon serves as an independent control parameter for spin‐selective photocurrent generation. ABSTRACT Efficient generation and control of spin‐polarized currents in semiconductors remain central
Rajesh Kumar Yadav +8 more
wiley +1 more source
Kinematic and Dynamic Analysis of Eccentric Balanced Positive Torque Pumping Unit
MachinesBeam pumping units have numerous energy transfer links, significant net torque fluctuations and negative net torque in gear boxes, which lead to a high installed power and low system efficiency.
Jinchao Xu +4 more
doaj +1 more source
Lithography‐Compatible Conductive Metal–Organic Frameworks for Scalable Electronics
Advanced Materials, EarlyView.Conductive MOF thin films are integrated as gate electrodes in semiconductor devices through a photolithography‐compatible patterning strategy. CVD‐grown 2D MOF thin films enable stable operation across bottom‐gate MoS2/MoTe2 field‐effect transistors and top‐gate IGZO arrays, highlighting the potential of conductive MOFs as functional electronic ...
Hyeonwoo Lee +9 more
wiley +1 more source
Jixie chuandong, 2010 The mathematical model of non-circular gear crank-rocker mechanism is established,and the dynamic characters of this organization are analyzed.Taking the energy saving as a starting point,the design method applicable to the beam pumping unit of non ...
赵娟娟, 苏智剑
doaj
Advanced Materials, EarlyView.Spin‐selective hot‐carrier transfer across CrSBr/WSe2/CrSBr interfaces couples the continuously tunable magnetic configuration of antiferromagnetic CrSBr to the valley degrees of freedom of monolayer WSe2, enabling giant nonequilibrium valley control and magnetic‐state‐dependent reversal of circularly polarized emission.
Ke Xiao +7 more
wiley +1 more source
PROSES FABRIKASI KOMPONEN WALKING BEAM PADA NEW PUMPING UNIT [PDF]
The oil and gas eguipment business unit is engaged in the manufacture of pumping units, in its production process, oil and gas equipment is required to run as effectively and efficiently as possible so that it can produce high quality products.
Bismantolo, Putra +2 more
core
Vibration Characteristic of Multi-Stage Linear Motor Pumping Unit
, 2017 The vibration reason of the linear electric motor is analyzed for multi-stage linear pumping unit. A different order number expression of natural frequencies under wave action is given.
Yan Liu, Sen Wang, Yang Yang Zhao
core +1 more source