李达浙江大学信电学院研究员,长期从事电磁兼容、人工电磁结构、电磁快速计算、人工智能设计方面的理论和应用研究。近2年主持国家自然科学基金、浙江省自然科学基金、华为、中航、中物院等攻关课题10余项,同时参与国家重大科研仪器项...李达浙江大学信电学院研究员,长期从事电磁兼容、人工电磁结构、电磁快速计算、人工智能设计方面的理论和应用研究。近2年主持国家自然科学基金、浙江省自然科学基金、华为、中航、中物院等攻关课题10余项,同时参与国家重大科研仪器项目、国家重点研发计划、浙江省重大项目等。多项研究成果已应用于产业界。2023年获IEEE Motohisa Kanda Award;2023年获华为“难题揭榜”火花奖;2022年获中国发明创业奖-成果奖一等奖(排名第2);2022年获亚太电磁兼容会议青年科学家奖;指导研究生获得最佳论文5次。已发表IEEE系列高水平学术论文50余篇,受邀在多个国际会议、工程大会作嘉宾邀请报告。展开更多
In the electromagnetic field, the wettability between Ti50Al alloy melt and oxide ceramic moulds was studied by the self-designed measuring apparatus. The thermodynamic and kinetic laws and mechanism on wetting were s...In the electromagnetic field, the wettability between Ti50Al alloy melt and oxide ceramic moulds was studied by the self-designed measuring apparatus. The thermodynamic and kinetic laws and mechanism on wetting were studied systematically. The results show that in the electromagnetic field, the order of contact angles for the molten Ti50Al alloy for the eight oxide materials is θ(Y2O3)>θ(ZrO2(Y2O3))>θ(ZrO2(CaO))>θ(CaO)>θ(ZrO2(MgO))>θ(Al2O3)>θ(Zircon)>θ(MgO). The wetting process of Ti50Al alloy and ceramic moulds includes the nonreactive wetting at the first stage, and the reactive wetting at the final stage. And the higher the ceramic chemical stability, the longer the nonreactive wetting time.展开更多
A multi-domain nonlinear dynamic model of a proportional solenoid valve was presented.The electro-magnetic,mechanical and fluid subsystems of the valve were investigated,including their interactions.Governing equation...A multi-domain nonlinear dynamic model of a proportional solenoid valve was presented.The electro-magnetic,mechanical and fluid subsystems of the valve were investigated,including their interactions.Governing equations of the valve were derived in the form of nonlinear state equations.By comparing the simulated and measured data,the simulation model is validated with a deviation less than 15%,which can be used for the structural design and control algorithm optimization of proportional solenoid valves.展开更多
Magnetizations of four sublattice bilayer system have been systematically investigated by the use of effectivefield theory with self-spin correlations and differential operator technique. The effects of the crystal fi...Magnetizations of four sublattice bilayer system have been systematically investigated by the use of effectivefield theory with self-spin correlations and differential operator technique. The effects of the crystal field, longitudinal magnetic field, and intra- and inter-monolayer interaction constants on magnetizations axe examined in detail. Some interesting results are obtained, which may potentially be related to experimental work.展开更多
文摘李达浙江大学信电学院研究员,长期从事电磁兼容、人工电磁结构、电磁快速计算、人工智能设计方面的理论和应用研究。近2年主持国家自然科学基金、浙江省自然科学基金、华为、中航、中物院等攻关课题10余项,同时参与国家重大科研仪器项目、国家重点研发计划、浙江省重大项目等。多项研究成果已应用于产业界。2023年获IEEE Motohisa Kanda Award;2023年获华为“难题揭榜”火花奖;2022年获中国发明创业奖-成果奖一等奖(排名第2);2022年获亚太电磁兼容会议青年科学家奖;指导研究生获得最佳论文5次。已发表IEEE系列高水平学术论文50余篇,受邀在多个国际会议、工程大会作嘉宾邀请报告。
基金Project(30670562) supported by the National Natural Science Foundation of China
文摘In the electromagnetic field, the wettability between Ti50Al alloy melt and oxide ceramic moulds was studied by the self-designed measuring apparatus. The thermodynamic and kinetic laws and mechanism on wetting were studied systematically. The results show that in the electromagnetic field, the order of contact angles for the molten Ti50Al alloy for the eight oxide materials is θ(Y2O3)>θ(ZrO2(Y2O3))>θ(ZrO2(CaO))>θ(CaO)>θ(ZrO2(MgO))>θ(Al2O3)>θ(Zircon)>θ(MgO). The wetting process of Ti50Al alloy and ceramic moulds includes the nonreactive wetting at the first stage, and the reactive wetting at the final stage. And the higher the ceramic chemical stability, the longer the nonreactive wetting time.
基金Project(2008ZHZX1A0502) supported by the Independence Innovation Achievements Transformation Crucial Special Program of Shandong Province,China
文摘A multi-domain nonlinear dynamic model of a proportional solenoid valve was presented.The electro-magnetic,mechanical and fluid subsystems of the valve were investigated,including their interactions.Governing equations of the valve were derived in the form of nonlinear state equations.By comparing the simulated and measured data,the simulation model is validated with a deviation less than 15%,which can be used for the structural design and control algorithm optimization of proportional solenoid valves.
基金The project supported by the Natural Science Foundation of Liaoning Province under Grant No.20041021the Scientific Foundation of the Educational Department of Liaoning Province under Grant Nos.2004C006 and 20060638the Postdoctoral Foundation of Shenyang University of Technology
文摘Magnetizations of four sublattice bilayer system have been systematically investigated by the use of effectivefield theory with self-spin correlations and differential operator technique. The effects of the crystal field, longitudinal magnetic field, and intra- and inter-monolayer interaction constants on magnetizations axe examined in detail. Some interesting results are obtained, which may potentially be related to experimental work.
