Results 71 to 80 of about 148,026 (279)
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
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AI–Guided 4D Printing of Carnivorous Plants–Inspired Microneedles for Accelerated Wound Healing
Advanced Materials, EarlyView.This work presents an artificial intelligence (AI)‐guided 4D‐printed microneedle platform inspired by carnivorous plants for wound healing. A thermo‐responsive shape memory polymer enables body temperature–triggered self‐coiling for autonomous wound closure.
Hyun Lee +21 more
wiley +1 more source
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
Advanced Materials, EarlyView.This work presents soft, degradable hydrogel microcarriers that combine magnetic responsiveness with the ability to host multiple therapeutic and cellular components. Produced by droplet microfluidics, the carriers maintain structural integrity during manipulation, permit controlled breakdown under physiological conditions, and enable guided motion for
Xuan Peng +18 more
wiley +1 more source
Selection method modelling and matching rule for rated power of prime motor used by beam pumping units [PDF]
, 2017 The energy consumption of prime motors used in oilfields is the one-third of the total energy consumption of beam pumping unit wells. In order to keep initiating and operating the prime motor smoothly and safely, its actual rated power is high much more ...
Fang, Xin +7 more
core +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
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POWER-EFFICIENCY ANALYSIS OF OIL WELL SYSTEMS WITH SUCKER ROD PUMPING UNITS
Известия высших учебных заведений: Нефть и газ, 2015 The purpose of this paper is to analyze the power efficiency of oil well systems with sucker rod pumping units. For this study a chain-drive of HRC 80-6-02 type and a similar performance drive HRC 80-6-02 balancer pumping unit were selected. Based on the
A. M. Sagdatullin
doaj +1 more source
Performance Analysis of a Novel Swing Crank- slide Bar Beam Pumping Unit
, 2016 A novel swing crank-slide bar beam pumping unit composes of motor, reducer, crank, slider, guide rod, frame and wire rope. Up and down stroke is performed by slider moving along guide-rod guide apparatus resulting guide rod up and down movement against ...
Xiaoqing Kang, Fei Zhang, Tao Ren
semanticscholar +1 more source
Near‐Unity Chiral Lasing Enabled by Quasi‐Bound States in the Continuum
Advanced Materials, EarlyView.Nanoimprinted chiral array that supports bound states in the continuum is doped with an efficient non‐chiral molecule (Rhodamine‐B) acting as gain medium to produce fully circularly polarized lasing emission. The chiral lasing wavelength can be tuned across the emission band of Rhodamine‐B by adjusting the coating thickness of the TiO2 high refractive ...
Jose Mendoza‐Carreño +5 more
wiley +1 more source
Power Saving Application of Permanent Magnetic Drive Technology on the Beam Pumping Unit
Shiyou jixie, 2017 In view of the issue of large working load fluctuation and power consumption of the beam pumping unit, based on the working principle and energy-saving features of the permanent magnetic drive technology, a new energy-saving scheme has been proposed to ...
Du Yi, Zhou Aiguo
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