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浏览/检索结果: 共36条，第1-10条 帮助 限定条件 发表日期：2018    专题：北京航空航天大学    第一署名单位    第一作者单位    通讯作者单位     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Preparation of reduced graphene oxide coated flaky carbonyl iron composites and their excellent microwave absorption properties 期刊论文 RSC ADVANCES, 2018, 卷号: 8, 页码: 2971-2977 作者:  He, Lihua;  Zhao, Yan;  Xing, Liying;  Liu, Pinggui;  Wang, Zhiyong 收藏  |  浏览/下载：3/0  |  提交时间：2019/12/30 Delta functions  Dielectric losses  Dispersions  Impedance matching (electric)  Nanosheets  Permittivity  Absorber thickness  Characteristic impedance  Complex permittivity  Effective bandwidth  Microwave absorbing performance  Microwave absorption properties  Reduced graphene oxides  Reduced graphene oxides (RGO)  Graphene   A method of antenna impedance matching based on vector fitting 期刊论文 Lecture Notes in Electrical Engineering, 2018, 卷号: 423, 页码: 929-936 作者:  Tan, L.;  Wang, Y.;  Yu, G. 收藏  |  浏览/下载：4/0  |  提交时间：2019/12/30 Antennas  Frequency domain analysis  Impedance matching (electric)  Scattering parameters  Vectors  315 MHz  Antenna impedance  Electromagnetic systems  Frequency domain response  Radio frequency domains  Signal fitting  Smith chart  Vector fitting  Signal processing   A Method of Antenna Impedance Matching Based on Vector Fitting 会议论文 COMMUNICATIONS, SIGNAL PROCESSING, AND SYSTEMS, 2018-01-01 作者:  Tan, Lingling;  Wang, Yunpeng;  Yu, Guizhen 收藏  |  浏览/下载：5/0  |  提交时间：2019/12/30 Impedance matching  Smith chart  315 MHz  Vector fitting  Signal fitting   Numerical study on acoustic impedance variation along uniformly distributed multi-slit resonators 会议论文 AIAA Aerospace Sciences Meeting, 2018, 2018-01-08 作者:  Li, X.D.;  Chen, C.;  Hu, F.Q. 收藏  |  浏览/下载：5/0  |  提交时间：2019/12/30 Acoustic field measurement  Acoustic fields  Acoustic resonators  Acoustic wave propagation  Acoustic wave reflection  Acoustic wave transmission  Aviation  Computational aeroacoustics  Ducts  Fire alarm systems  Orifices  Perforated plates  Underwater acoustics  Acoustic energy distributions  Helmholtz resonators  Impedance distribution  Impedance variations  Resistance variations  Sound pressure level  Specific frequencies  Straight-forward method  Acoustic impedance   Microstructural evolution of plasma spray physical vapor deposited thermal barrier coatings at 1150 degrees C studied by impedance spectroscopy 期刊论文 CERAMICS INTERNATIONAL, 2018, 卷号: 44, 页码: 10797-10805 作者:  Yang, Xiaolin;  Wei, Liangliang;  Li, Jimeng;  Zhang, Baopeng;  Wang, Shixing 收藏  |  浏览/下载：12/0  |  提交时间：2019/12/30 Plasma spray physical vapor deposition  Thermal barrier coatings  Yttria-stabilized zirconia  Impedance spectroscopy  Microstructural evolution  Electrical properties   Design and performance analysis of position-based impedance control for an electrohydrostatic actuation system 期刊论文 CHINESE JOURNAL OF AERONAUTICS, 2018, 卷号: 31, 页码: 584-596 作者:  Fu, Yongling;  Han, Xu;  Sepehri, Nariman;  Zhou, Guozhe;  Fu, Jian 收藏  |  浏览/下载：4/0  |  提交时间：2019/12/30 Actuation system  Aerospace  Electrohydrostatic actuator  Force control  Nonlinear dynamics  Particle swarm optimization  Position control   Colossal dielectric properties in (Ta0.5Al0.5)(x)Ti1-xO2 ceramics 期刊论文 JOURNAL OF ALLOYS AND COMPOUNDS, 2018, 卷号: 745, 页码: 856-862 作者:  Wang, X. W.;  Zhang, B. H.;  Sun, L. Y.;  Qiao, W. N.;  Hao, Y. D. 收藏  |  浏览/下载：3/0  |  提交时间：2019/12/30 Rutile TiO2  Colossal permittivity  Dielectric properties  Impedance spectra   Investigation of the 'exact' cremer impedance 会议论文 25th International Congress on Sound and Vibration 2018, ICSV 2018: Hiroshima Calling 作者:  Zhe, Z.;  Hans, B.;  Mats, Å.;  Lin, D.;  Xiaodong, J. 收藏  |  浏览/下载：10/0  |  提交时间：2019/12/30 Aircraft engines  Boundary conditions  Exhaust systems (engine)  Negative resistance  Exact solution  Experimental analysis  High frequency HF  Intake and exhaust systems  Low frequency range  Measurement campaign  Special properties  Very low frequency  Acoustic impedance   Investigation of straightforward impedance eduction method on single-degree-of-freedom acoustic liners 期刊论文 CHINESE JOURNAL OF AERONAUTICS, 2018, 卷号: 31, 页码: 2221-2233 作者:  Qiu, Xianghai;  Xin, Bo;  Wu, Long;  Meng, Yang;  Jing, Xiaodong 收藏  |  浏览/下载：9/0  |  提交时间：2019/12/30 Acoustic liner  Experimental validation  Grazing flow effect  High sound intensity effect  Impedance eduction  Numerical evaluation  Straightforward impedance eduction method   Design of locally reacting liner based on transfer element method and experimental validation [基于传递单元方法的局域反应声衬设计与试验] 期刊论文 Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica, 2018, 卷号: 39 作者:  Li, Z.;  Wang, X.;  Sun, X. 收藏  |  浏览/下载：5/0  |  提交时间：2019/12/30 Acoustic impedance  Acoustic noise  Aircraft engines  Axial flow turbomachinery  Axial-flow compressors  Cost engineering  Ducts  Engines  Wave transmission  Axial compressors  Engineering applications  Experimental validations  Locally reacting liner  Low speed axial compressor  Noise reduction effect  Transfer elements  Transmission loss  Noise abatement