表觀阻抗 的英文怎麼說
中文拼音 [biǎoguānzǔkàng]
表觀阻抗
英文
apparent impedance-
The chemical composition and microstructures of the insulating thin films prepared by different methods were analyzed by x - ray diffraction ( xrd ) and scanning electron micrograph ( sem ) ; other properties such as electric resistance, the breakdown field strength and dielectric properties were evaluated using high resistance meter, voltage resistance meter and precision impedance analyzer respectively
採用x射線衍射儀（ xrd ）對表面絕緣薄膜的物相組成進行了分析，掃描電子顯微鏡（ sem ）對表面絕緣薄膜的微觀結構進行了研究，並用絕緣電阻測試儀、耐壓測試儀和精密阻抗分析儀分別對絕緣膜進行絕緣電阻率、擊穿場強和介電性能的測試。The basic principle, main properties, typical parameters, technical characteristics and general situation of klystron are introduced. the electron beam prebunching in the modulated cavity and shift tube of relativistic klystron amplifer ( rka ) is studied analytically, a self - consistent equation of radiation generated by the prebunched electron beam in the radiation cavity is derived using the field method of particle ? wave interaction instead of the electrical circuit method, and in terms of it, the gain in the linear regime calculated, a field analysis method is proposed. the theory analysis shows that the characteristic parameters, such as resonance frequency, real part of gap - impedance, external quality fadtor in all kinds of klystron output circuits including single - beam, multi - beam, single - gap, multi - gap, single - beammulti - gap, multi - beam multi - gap klystron output circuit, can be calculated by the field analysis method
本文系統的介紹了速調管的工作原理、主要特點、發展概況、主要性能指標和技術特點，解析的研究了電子束在相對論速調管放大器的調制腔和漂移管中的預群聚;用粒子波互作用的場方法導出了在輻射腔中預群聚電子束產生輻射的自洽方程，同時對線性區的增益進行了計算。理論分析表明，場分析法可用於計算單注單間隙、多注多間隙、單注多間隙和多注多間隙速調管輸出迴路的諧振頻率、間隙阻抗實部和外觀品質因數等特性參數。The charge and discharge performances of different composites were studied by the charge and discharge ; the structures of composites were characterized by sem ; the electrochemical properties of sulfur positive materials were characterized by cyclic voltammetry and eis. we studied the charge process, discharge process, charge - discharge efficiency, self heat, and self - discharge of lithium - sulfur system on system shuttle constant, conduct the mechanism of these processes and simply analyse them
以充放電技術研究了不同類別復合正極的充放電性能;以掃描電鏡技術觀測了復合正極的表面形貌;以循環伏安技術和交流阻抗技術研究了復合正極電極的電化學性能;並初步探討了鋰-硫電池體系中充電過程、放電過程、充放電效率、自熱和自放電等對體系飛梭常數的影響，推導了這些過程的機理並簡要的進行了分析。Samples were taken from nonpregnant, pregnant and cultured endometrium cell, with using immunohistochemical staining, western - blot methods. to better understand this interaction, we further characterized the expression patterns of egfr messenger rnas in the mouse uterus on days 1 to 8 of pregnancy. in the present study, we found : two isofonns of non - phospho mapk was generally equally expressed in the nonpregnant and pregnant mice endometrium, and little difference among them
本研究以未孕及早孕小鼠（ d1 ? d8 ）的子宮內膜和培養的d4子宮內膜為樣品，應用免疫組織化學、 western - blot等方法，檢測了小鼠胚胎植入前後子宮內膜erk1 / erk2的表達部位及水平；用rt - pcr方法檢測了egf及其受體egfr的表達情況；對培養的d4子宮內膜以le ~ y寡糖抗體阻斷，觀察了其對活性型mapk表達的影響。In this study, we use different particle of carbon powders mixed with epoxy - resin, and coating on polyester woven fabrics for designing the electromagnetic wave absorbing screens, and employ the matching of impedance to designing the transfer of single or plural layers, and observe the influence of the amount of layers and the methods of collocating screens, to attain the method of collocating screen, which achieve best effect of absorbing of electromagnetic wave
摘要本實驗採用碳粉混合環氧樹脂，塗抹在聚酯布上，做為電磁波吸收體之表面護幕和間距護幕，以單層和多層疊合，並利用阻抗匹配的理論，觀察疊層層數和排列試樣的方法，對電磁波吸收效果的影響，藉由此求出具有最佳吸收效果的排列方法。In this paper, the performances of macroscopic physical mechanics, durability, and microstructure are analyzed and studied. the results of macroscopic properties indicate that the workability and relevant physical mechanics are matched best with the scientific introduction of auxiliary cementitious materials. at the same time, the compatibility between stained materials and cement - basic materials is improved, as well as the resistant abilities of the ions transference and environmental corrosive damages
宏觀性能測試結果表明，科學合理的引入輔助膠凝材料在一定程度上使hpch材料的工作性及相應物理力學性能得以最佳匹配，同時改善了著色物質與水泥基材料的相容性，增強了hpch材料對離子遷移的阻礙能力及對環境侵蝕破壞的抵抗能力。Finally applies this structure in antenna, and gives a example of rectangular patch antenna. from the example, it can be observed that the high impedance surface can restrain the backwards radiation. 2
最後將這種高阻抗表面運用到天線上，給出了一個矩形貼片天線的模擬例子，從中觀察到了高阻抗表面能抑制後向輻射，增強輻射效率的作用。分享友人