Results 101 to 110 of about 71,707 (286)
Efficient Charge Transport in Zero‐Dimensional Perovskite for Ultrahigh‐Sensitivity X‐Ray Detection
Advanced Functional Materials, EarlyView.A novel mono‐octahedral 0D Bi‐based Dpy3Bi2I12 perovskite strengthens the internal hydrogen bonds and forms a quasi‐2D lattice, exhibits exceptional charge transport and mobility, achieving high X‐ray sensitivity and ultralow‐dose imaging, and setting a new benchmark for 0D detector performance.
Xin Song +16 more
wiley +1 more source
Beyond the Edge: Charge‐Transfer Excitons in Organic Donor‐Acceptor Cocrystals
Advanced Functional Materials, EarlyView.Complex excitonic landscapes in acene–perfluoroacene cocrystals are unveiled by polarization‐resolved optical spectroscopy and many‐body theory. This systematic study of a prototypical model system for weakly interacting donor–acceptor compounds challenges common views of charge‐transfer excitons, providing a refined conceptual framework for ...
Sebastian Anhäuser +6 more
wiley +1 more source
Design of Automatic Tension Control System for Beam Pumping Unit Belt
Shiyou jixie, 2019 To address the slipping problem in the working process of the beam pumping unit belt, a control system which can real-time monitor the belt transmission parameters and automatically adjust the tensioning force is designed.
Xu Guotai +3 more
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Diaphragm Pump System with Non-metallic Coiled Tubing Cable Complex
Shiyou jixie, 2020 Conventional beam pumping units consume much energy and they are prone to fail. Reciprocating submersible pumps are subject to wax, frequent cable damage and a short life. A new type of diaphragm pump system has been developed.
Ji Xiaoke, Hua Jian, Fang Jianguo
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Self‐Hybridized Exciton‐Polariton Photodetectors From Layered Metal‐Organic Chalcogenolates
Advanced Functional Materials, EarlyView.Self‐hybridized exciton‐polariton photodetectors are demonstrated using high refractive index mithrene, eliminating the need for top mirrors. This simplified architecture enables tunable sub‐bandgap photodetection via lower exciton‐polariton states and enhanced carrier transport through ultrafast polariton group velocities.
Bongjun Choi +3 more
wiley +1 more source
Research on Constant-Power Frequency Conversion System for Beam Pumping Units
Shiyou jixieBeam pumping unit is one of the most important mechanical equipment for oil production in onshore oilfields.In recent years,a series of frequency conversion energy-saving technologies have been developed.However,the researches on beam pumping unit mainly
Wang Qinghua +6 more
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Differentially pumped molecular beam extraction system to probe catalytic chemistry at ambient pressure conditions: A CFD-aided design [PDF]
AIP AdvancesWe report a design and finite element fluid-dynamics modeling of a differentially pumped molecular beam extraction system. The system relies on two stages of pumping and consists of three sections: a catalytic reactor, a differential chamber, and an ...
Satya P. Joshi +5 more
doaj +1 more source
Advanced Healthcare Materials, EarlyView.This study introduces an innovative approach to treating intervertebral disc degeneration using ultrasound‐triggered in situ hydrogel formation. Proof‐of‐concept experiments using optimized biomaterial and ultrasound parameters demonstrate partial restoration of biomechanical function and successful integration into degenerated disc tissue, offering a ...
Veerle A. Brans +11 more
wiley +1 more source
Jixie chuandong, 2013 A kind of elasticity tension device applicable to the belt in belt drive system of beam-pumping unit of oil field is put forward.The structures as well as the problems of the existing tension devices are introduced,and the technical research and product ...
帖荣俊, 吴利群
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Electromagnetic Optimization Design of Disc-type Switched Reluctance Motor for Pumping Unit
Shiyou jixie, 2022 In order to avoid the problems caused by the belt drive system of the beam-pumping unit, the motor spindle needs to be connected to the reducer directly in the semi-direct drive mode.
Han Peng +6 more
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