Results 51 to 60 of about 30,021 (263)
RELIABILITY STUDY OF PISTON PUMPS IN MOBILE PUMPING UNITS
ETM Equipment Technologies MaterialsThe article presents the results of a reliability study of piston pumps in mobile pumping units used in technological operations in the oil and gas industry. The relevance of the work is due to the operation of piston pumps under conditions of variable loads, vibration impact, temperature fluctuations, and varying intensities of factors affecting the ...
Ali Hikmat Ahmadov Ali Hikmat Ahmadov +1 more
openaire +1 more source
Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies
Advanced Functional Materials, EarlyView.Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke +3 more
wiley +1 more source
Design of PLC-controlled Control System for Non-beam Pumping Unit
Shiyou jixie, 2018 The beam pumping unit cannot realize automatic control, and is unable to be adjusted with the external environment and incapable of predicting the fault in time, resulting in many inevitable faults in the pumping equipment.
Cao Zhongliang +3 more
doaj
Tribology Performance of Surface Texturing Plunger
Biomimetics, 2019 Plunger pumps are widely used in oil pumping units around the world. The water content of the wellbore is increasing along with the development progress, so the lubricating capacity of the well fluids between the plunger and barrel is decreasing ...
Songbo Wei +4 more
doaj +1 more source
Advanced Functional Materials, EarlyView.A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao +6 more
wiley +1 more source
Bone‐Inspired Recyclable Composites for Damage‐Tolerant Circular Materials
Advanced Functional Materials, EarlyView.Bone‐inspired architected composites are developed by combining osteon‐like reinforcements with a recyclable Elium thermoplastic matrix. The hierarchical architecture redirects cracks and promotes energy dissipation, while enabling recovery of intact, aligned, load‐bearing reinforcement units that retain their original stiffness, revealing a route ...
Alessandro Stagni +4 more
wiley +1 more source
DESIGN AND APPLICATION OF NEW TYPE OF CRANK AUTOMATIC ADJUSTMENT MECHANISM OF PUMPING UNIT
Jixie qiangdu, 2019 To lower the labor intensity, reduce energy consumption, improve efficiency, increase the service life of the pumping unit and achieve automatic adjustment of pumping unit, based on the CYJ10-4.2-53 HF type pumping unit, this paper completes the ...
WU JunFei, WANG Qian, JIN Xin, XIAO Shu
doaj
Sucker rod pumping unit energy-efficient control
Известия Томского политехнического университета: Инжиниринг георесурсовRelevance. The operation of the electric drive of deep-well sucker rod pumping units is characterized by a periodic nature of load changes, which, within a group of independent electric drives of a well cluster, can cause significant power fluctuations ...
Anton A. Nakataev +2 more
doaj +1 more source
Bio‐Inspired Artificial Ionic Mechanoreceptor
Advanced Functional Materials, EarlyView.A skin‐inspired artificial mechanoreceptor based on ionic interactions is presented for biomimetic tactile sensing. Pressure‐driven ionic redistribution within microfluidic channels generates a self‐powered electrical signal without external bias. The generated waveform exhibits mechanoreceptor‐like temporal features, including overshoot and undershoot,
Mohammad Akbari +4 more
wiley +1 more source