電介質復常數 的英文怎麼說
中文拼音 [diànjièzhífùchángshǔ]
電介質復常數
英文
complex dielectric constants-
Abstract : bridge function and generalized bridge function are all three - valued function, and are made by initial sequence according as copied or shifted ways. they include some familiar orthogonal function of non - sine, such as walsh function. this paper briefly introduced some research advance on this subject, emphasized to introduce the copy theory and generalized copy method. the process of making ( generalized ) bridge function, its property and application, were introduced briefly
文摘:橋函數和廣義橋函數均為三值函數系，都是將初始序列經復制方式和移位方式變換后而形成的.它們包括了一些常見的非正弦正交函數，如沃爾什函數和方波函數等.簡要介紹了近10年來北京航空航天大學通信與電子系統博士點在非正弦正交函數方面研究的一些新進展，重點介紹了復制理論和廣義復制方法，橋函數、廣義橋函數的復制生成方法、性質及其應用等專題By extending the pyroelectric theory of a ferroelectric bilayer, we have presented the effective pyroelectric coefficient of a ferroelectric sandwich structure by use of the electrostatic theory. when the pyroelectric coefficient of the interface has a large deviation from that of the two - sided slabs and the dielectric constant of the interface is low, the effective pyroelectric coefficient of the sandwich structure may be one or two order higher than the largest pyroelectric coefficient of the components
我們應用靜多層結構鐵電系統的物理性質研究摘要電場理論，推廣了鐵電雙層膜的熱電理論，給出了鐵電三明治結構的有效熱電系數，發現在界面層的熱電系數與上下兩層的熱電系數差異較大，且界面層的介電常數較小的情況下，三明治這種復合結構材料的有效熱電系數比單一組份材料的熱電系數可以提高一到兩個數量級。Stripline test method for complex permittivity of microwave dielectric substrates
微波介質基片復介電常數帶狀線測試方法Measurement of complex permittivity of dielectric materials at microwave frequencies
微波電介質材料復介電常數的掃頻測量Test method for complex permittivity of solid dielectric materials at microwave frequencies
固體電介質微波復介電常數的測試方法Test method for the complex permittivity of solid dielectric materials at microwave frequencies -
固體電介質微波復介電常數的測試方法「開式腔」法Test method for complex permittivity of solid dielectric materials at microwave frequencies - perturbation method
固體電介質微波復介電常數的測試方法微擾法The dielectric constants of silica - rich, alumina - rich, and stoichiometric mullite ceramics are 5. 5, 6. 0 and 6. 3 respectively. the dielectric constant of mullite - si / c / n composites is related with the sintering parameters. with the increase of the sintering temperature and dwelling time, the " " and tg of mullite - si / c / n composites are decreased, this phenomenon is related with the change of the microstructure and phase composition of nano si / c / n powders
莫來石- si c n復合材料的介電常數與熱壓燒結工藝有很大的關系，隨熱壓燒結溫度（ 1450 1600之間）的升高，燒結時間（燒結溫度為1550 ）的增長，莫來石- si c n復合材料的介電常數實部、虛部及介電損耗角正切均明顯下降，這與吸收劑的性質隨溫度和時間的變化有關。Inverse calculation about layer parameters via radar signals is still in the phase of exploration, because the course of em propagation in the pavement is so complicated
由於電磁信號在路面介質中的傳播過程非常復雜，所以通過雷達信號反演路鄭州大學碩士學位論文摘要面各層參數的方法還處于探索階段。In the process of preparing glass / mullite composite material, research on shrink rate, bending strength, dielectric constant, dielectric loss tangent, etc have been carried out. in the experiment, the thermal expand coefficient of samples is tested, and through sem, insides structure of sintered sample is studied, so the relationship of
在制備玻璃/莫來石復合材料的過程中，我們研究了燒成后徑向收縮率、試樣的抗彎強度、介電常數、介質損耗及其影響因素，並測試了試樣的熱膨脹系數，通過sem觀測燒成試樣的內部結構情況，找出性能和結構之間的關系。Strip - line test methods for plural permittivity of microwave dielectric substrates
微波介質復介電常數的帶狀線法測量In the paper, we prepared high - quality mullite powder by sol - gel method and prepared low dielectric constant glass powder, and mix these two kinds of powder together to prepare glass / mullite composite material and study its properties
本論文的主要任務是採用溶膠凝膠法制備高質量的莫來石粉末和制備低介電常數的玻璃粉，使兩種原料復合制備出玻璃/莫來石復合材料並研究其性能。分享友人