As the electron beam travels through the klystron, the RF cavities in klystron bunches and provides effective velocity modulation to the beam. Interaction between the electron beam and the RF fields occurring within t...
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Polymers have complex molecular structures that often lead to interchain friction and hinder movement,making it difficult to achieve ***,in the field of hydration lubrication,the electronegative interface of ceramics ...
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Polymers have complex molecular structures that often lead to interchain friction and hinder movement,making it difficult to achieve ***,in the field of hydration lubrication,the electronegative interface of ceramics readily adsorbs water molecules,creating a protective water film that covers the frictional interface and effectively reduces *** achieve hydration lubrication,it is essential to create a continuous lubricating film by selectively enriching specific functional groups of adsorbed water molecules from the polymer solution onto the ceramic *** adsorbing a hydrophilic layer composed of polyvinylpyrrolidone with pyrrolidone groups onto a negatively charged Si3N4/sapphire interface,we formed a continuous lubricating *** has shown that the interaction between the polymer chain structure of polyvinylpyrrolidone molecules(such as PVP10000)in solution and water molecules could result in excellent *** the contact pressure exceeds 198 MPa,the coefficients of friction(COF)can be reduced to *** detailed surface analyses and sophisticated simulations,we uncovered the underlying mechanism *** pyrrolidone moieties of polyvinyl pyrrolidone(PVP)formed hydrogen bonds with the Si3N4 surface,transforming the initially difficult frictional interface into a PVP/sapphire interface with significantly reduced sliding energy *** findings highlight the vital role of PVP in superlubricity and hydration lubrication and provide a theoretical and experimental basis for the design of materials and lubricants with exceptional lubricating properties.
In recent years, the massive application of embedded simulation technology in various fields has greatly reduced the experimental cycle and resource investment. However, there are still some simulation resources that ...
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The development stage of laser facility control system is a complex system engineering, which involves the collaborative research and development of multi-department and multi-disciplinary personnel in the long-term d...
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In the practice of Model-Based systems Engineering (MBSE), where SysML models serve as the foundation for system integration frameworks, the maintenance of consistency of shared information across system models and ot...
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This paper designs a simulation platform monitoring system implemented by data distribution services to solve the problem that traditional network transmission is not flexible enough in the simulation platform monitor...
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Aiming at the problem that the current program change impact analysis methods have coarse calculation granularity and without considering the actual situation of program change, results in overstating the impact propa...
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In this study, we present KARI-MT-InSAR tool and analyze its efficiency for surface deformation monitoring. Resultingly, KARI-MT-InSAR tool considerably reduced the computation time for the estimation of crustal movem...
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To offer the military personnel a good service of assisting them to get information about enemy's equipment outside Internet, we build a system named MilChat which includes a large language model that has the abil...
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In this paper, design of a three channel RF receiver front-end at X band is presented with more than 60 dB inter channel isolation and less than ± 1.5 dB gain variation over 8.5% bandwidth. An image rejection fil...
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