Results 51 to 60 of about 2,998,373 (268)
Advanced Functional Materials, EarlyView.Solution‐based ligand‐assisted epitaxial growth (LAEG) yields high‐quality CsPbBr3 microcrystals on different substrates with superior morphology, passivated surfaces, and high photoluminescence quantum yield. These robust micro‐resonators achieve record‐low room‐temperature lasing thresholds of 7.2 kW·cm−2 and maintain operational stability up to 90 ...
Shuyu Zhou +19 more
wiley +1 more source
Plunger Motion Law of Downhole Oil Well Pump under the Condition of Flexible Control
Shiyou jixie, 2022 The flexible control technology of beam pumping system is a kind of variable-speed drive technology.Its purpose is to change the working process of pumping unit and improve the efficiency of oil production,so it is somewhat advanced.However,the previous ...
Duan Zhigang +6 more
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INFLUENCE OF OPERATIONAL PARAMETERS ON THE PERFORMANCE OF A BEAM PUMPING UNIT
ETM Equipment Technologies MaterialsIn the present study, the influence of wear processes of key structural units of a beam pumping unit on its operational characteristics and overall performance under conditions of long-term development of oil fields is considered. Attention is given to the analysis of changes in the technical condition of drive elements and transmission mechanisms ...
Vali Fataliyev Vali Fataliyev +1 more
openaire +1 more source
Advanced Functional Materials, EarlyView.Phase transitions are central for the assembly of recombinant silk proteins into fibers. Soluble protein can transition into condensed states such as condensates and gels. These states are metastable and evolve in a time‐dependent way. Metastability depends on the protein sequence, and this relationship can be used to enhance the mechanical properties ...
Fred‐Eric Sammalisto +5 more
wiley +1 more source
Research on the Design of Linear Drive Motor of New Pumping Unit
, 2011 The new energy saving pumping unit driven by linear induction motor (LIM) not only can overcome many disadvantages of traditional beam-pumping unit, but also has a lot of advantages, such as reliability, high operating efficiency, etc.
De Bao Tian +4 more
core +1 more source
Research and Analysis of the Energy Saving Pulley Reducer
Jixie chuandong, 2016 In order to solve the problem of existing beam pumping unit reducer,the belt transmission mechanism is difficult to meet the long stroke and low speed,the contradiction of the energy requirements and form a complete set of small power motor,and the start
Fan Shiyao, Ren Xiaoming
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Advanced Materials, EarlyView.Spatiotemporal control over cell behavior within bioprinted constructs remains a key challenge in biofabrication. Volumetric bioprinting using multi‐wavelength light sources permits to activate light‐sensitive intracellular proteins as well as optogenetic gene and protein expression circuits in bioprinted cells, in addition to enabling fast printing of
Davide Ribezzi +14 more
wiley +1 more source
Study on Single Crank Flexible Pumping Unit in Oil Field Artificial Lift
, 2011 International tension between energy supply and demand boost developments of energy-saving industry. Structure drawbacks of four linkage bar of the conventional beam pumping unit in oil field artificial lift led to the study of a single crank flexible ...
Jin Chao Xu +6 more
core +1 more source
Advanced Materials for Biologics Delivery to Brain Tumors
Advanced Materials, EarlyView.Material innovation is central to unlocking the therapeutic potential of biologics against many central nervous system diseases, including brain cancer. By engineering carriers with controlled transport, targeting, and release properties, advanced materials can overcome the blood–brain barrier and tumor microenvironment, improving the delivery of ...
Yuran Feng +4 more
wiley +1 more source
Kinematic Analysis of Long Stroke Pumping Unit with Post Pulley
Jixie chuandong, 2017 In view of the shortcomings of high peak of crank torque and polished rod load,short stroke and serious wear of steel wire rope,the structural characteristics of the conventional beam pumping unit are analyzed.
Sun Wenbin +3 more
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