理想導體 的英文怎麼說
中文拼音 [lǐxiǎngdǎotǐ]
理想導體
英文
perfect conductor-
Over the yesrs, we have adhered to the management concept of " creating ideal environment to induce living trend " ; we regard the building of tasteful gardening environment as our own responsibility, and, by introducing modern forerunning environmental art design concept, we blend traditional and continue to launch new ides to create a series of premium products in villa decorations and landscape gardening
幾年來，海山一直秉承"創造理想環境，引導生活潮流"的經營理念，以營造品味園林環境為己任，通過引進現代前瞻性環境藝術設計概念、揉合傳統和現代施工工藝為一體，推陳出新，打造了一系列景觀園林精品。The rule of fluctuation of energy and pressure about canonical assemblages relativity quantum perfect gas under high temperature is given through strict theoretical inference and comparison with the theory on non - relativity
通過嚴格的理論推導，給出了正則系綜高溫條件下相對論量子理想氣體的能量和壓強的漲落規律，並與非相對論漲落進行了比較The three - order modulator has a 2 - 1 cascaded structure and 1 - bit quantizer at the end of each stage, the modulator is implemented with fully differential switched - capacitor circuits. and then, the discussion will begin by exploring the design of various circuit blocks in the modulator in more detail, i. e., ota, switched - capacitor integrator, quantizer, two - phase non - overlapping clock signal, etc., at the same time, these circuits will be simulated in spectre and hspice. at last, the whole cascaded modulator will do behavioral level simulation by matlab soft and simulink toolbox
本論文中，首先介紹模數轉換器的各種參數的意義，以及一階sigma - delta調制器和高階sigma - delta調制器的原理;給出解決高階單環sigma - delta調制器不穩定性的方案，引入級聯結構調制器，特別針對級聯結構調制器中的失配和開關電容積分器的非理想特性進行詳細的討論;本設計的sigma - delta調制器採用2 - 1級聯結構和一位量化器，調制器採用全差分開關電容電路實現;同時對整個調制器的各個模塊進行了電路設計，包括跨導放大器、開關電容積分器、量化器、兩相非交疊時鐘等，並利用hspice和spectre模擬工具對這些電路進行模擬測試;最後，利用matlab軟體和simulink工具對整個級聯調制器進行行為級模擬。In education, the author explains that the educational innovation served as premise and security for the development of physics via in - depth analysis on the college education and educational system of physics in germany ; ln philosophy, to avoid the superficial and rigid opinions that philosophy either guides or hinders physics, which is resulted from one - way analysis on the influence of physical knowledge by specific philosophical knowledge, based on the combination of physical achievements by philosophy and profound philosophical knowledge, the author illustrates that the influence on german physics by philosophy reflects more on a kind of spirit a nd this very spirit brings the new quality into the german physics ; in mathematics, by means of analyzing integration of mathematics and physics at different stages, the author is tended to testify that the blooming mathematics in germany is the indispensable condition for the prosperity of german physics because. 2 mathematics provides language tools for the development of physics ; ln culture, by way of analyzing the common features of german physicists and connecting the brilliant german culture, the author audaciously brings forward that the wissenschaft ideas and faust ideas is the important driving force for the prosperity of the development of german physics
在教育方面，通過對德國大學和物理教育體制的形成的分析，說明教育改革是物理學發展的先導和保證；在哲學方面，作者避免了從具體哲學知識對物理知識影響的單一方式出發而得出「要麼指導要麼阻礙」的兩種簡單僵化觀點的弊端，將哲學對物理學成就的影響和德國物理學家群體很高的哲學素養結合起來分析，說明哲學對德國物理學的作用更多的是體現在一種氣質、精神上，正是這種氣質和精神為德國物理學的發展注入了一種新的特質；在數學方面，通過對不同時期數學和物理學融合程度的分析，證明了發達的數學是德國物理學繁榮和領先的必不可少的條件，它為物理學的發展提供了語言工具；文化方面，通過對物理學家群體特點的分析聯系燦爛的德國文化，作者大膽提出其中蘊涵的wissenschaft思想和浮士德精神是德國物理學繁榮和領先的重要動力。The raw materials, the composition, the time of milling, the calcining temperature, the different additives, the sintering temperature and the sintering parameters were investigated. the result showed : it was advantaged to obtain high initial permeability mnzn ferrite with stable frequency characteristic using high - purity raw materials ; in order to obtain mnzn ferrite with high properties, we must control strictly the composition ; it could improve the properties of mnzn ferrite by optimizing calcining temperature. the lower calcining temperature made the permeability higher, and the higher calcining temperature could promote the frequency characteristic of permeability ; we chosen the right time of milling according to the requirement of power diameter ; in order to improve the properties of mnzn ferrite, it is necessary to add effective additives. in this dissertation, the influence of bi2o3 、 moo3 、 k2co3 、 co2o3 were investigated ; the sintering temperature, the time of heat - retaining and sintering parameters were the key factors of preparing high permeability mnzn ferrites
研究結果表明:採用高純度的fe2o3有利於獲得高起始磁導率且頻率特性優良的鐵氧體;為了制備所需性能的鐵氧體，需要嚴格控制配方中各種原材料的含量，優化配方;由於粉體活性受預燒條件的影響，所以對不同要求的鐵氧體選擇的預燒條件就不一樣，適當降低預燒溫度有利於獲得較高的起始磁導率，而為了獲得良好的頻率特性可以適當地提高預燒溫度;根據對粉體顆粒粒徑的不同需求，可以選擇不同的球磨時間;而有效的添加劑是改善材料性能的必要條件，本文在添加劑的研究中主要對bi2o3 、 moo3 、 k2co3 、 co2o3的影響分別作了詳細地討論;燒結溫度、保溫時間和燒結氣氛是高磁導率mnzn鐵氧體制備最關鍵的工藝，適宜的燒結工藝可以獲得理想微結構和組成，從而得到高性能的鐵氧體材料;而從材料的微結構上來看，要提高材料的截止頻率，就要適當地細化晶粒、增加晶粒內部的氣孔。Zhao wen, the board chairman, as the core, a group of leaders with high thinking consciousness, powerful business ability and effective working style, have gathered round
以董事長趙穩為核心，聚集了一批思想覺悟高，業務本領強，工作作風實的領導骨幹，組成了一個講團結，懂經營，會管理的集體指揮力量。The head of the program, chemical engineering professor richard wool, said researchers looked to chicken feathers because they have shafts that are hollow but strong, and made mostly of air, a great conductor of electricity
該項目負責人化學工程教授理查德?沃爾說，研究員們之所以採用雞毛是因為雞毛桿是空的，而且很硬，中間大部分是空氣，是一種很理想的電導體。Contemporarily, the wide application of embedded products has led increasingly complexity and diversification of the object hardware system, so the ideal development environment should be provided with the fully support from hardware platform
同時，嵌入式產品的廣泛應用，導致目標硬體系統日益復雜和多樣化，理想的開發環境應該提供硬體平臺的全面支持。Abstract : based on the objectivity of space, time and their measuring, the author gives a ideal experiment of space and time measuring, educe the difference between true time and metrical time ( this difference results from the finity of light speed ), thus proves the relativity between metrical time and true time and the relativity between given reference points, gives the express formulas of relative velocity
提要：從時空及時空度量的客觀性、絕對性出發，通過具體的空間、時間測量理想實驗，導出測量時刻、時間與客觀時刻、時間的差異（這種差異的根源在於光速傳播的有限性） ，從而說明測量時刻、時間對于客觀物理量及不同參照點的相對性，給出了客觀勻速直線運動的相對速度表達式。That energy itself must be produced in ways that do not emit greenhouse gases for hydrogen to be a truly green fuel
最理想綠色燃料則是按照一定的方式自己產生能量而且不會產生二氧化碳、甲烷等導致溫室效應氣體（如同氫氣） 。At present greco is regarded as one of the most valuable methods of radar cross section ( rcs ) computation in the high - frequency region. depending on these conditions, several researches have been completed in this paper : firstly, calculating rcs of complex conducting targets has been accomplished by greco method. the high - frequency rcs of targets are obtained through physical optics ( po ) and incremental length diffraction coefficients ( ildc ) respectively
本論文做了以下研究工作：首先，實現了運用greco方法計算了高頻區理想導體復雜目標的雷達散射截面（ rcs ） ，分別應用了物理光學法（ po ）和增量長度繞射系數法（ ildc ）計算了目標的面元和棱邊的電磁散射，最後綜合面元與棱邊的散射效應得到目標的總rcs 。On the aspect of the research of the rcs computation methods, this dissertation did many work as : it discussed the application of the stationary phase method for the integral of the physical optics and gave the expressions of the stationary phase method based bezier surface for the perfect conduct and coated target ; focused on the application of the stationary phase method, it discussed some important techniques such as the searching of the stationary phase method and the handling of the singularity ; it also discuss the application of the gauss method for verifying the correction of the stationary phase method, and gave their compares of the efficiency and the precision
在rcs演算法研究方面，本文做了以下研究：討論了在bezier曲面上物理光學積分的駐相法求解，給出了bezier曲面上理想導體和塗敷目標駐相公式；圍繞駐相法的應用，討論了駐相法應用中的一些關鍵的技術問題，包括駐相點的搜索、駐相法的奇異性；為了檢驗駐相法的精度，還討論了gauss積分的應用，給出了兩種方法計算效率和精度的比較。In this paper, micro - cavity semiconductor laser ( mcsl ) with pillar vertical - cavity surface - emitting structure ( vcsel ) which has potential applications in optical communication and optical interconnect is theoretically analyzed, the calculation model that used to discuss the modal performance of rectangular columnar and cylinder vcsel with oxidized aperture is established by using vector field model. the numerical simulations in the case of cylinder structure show oscillating wavelength and threshold gain against inside and outside radius of laser, the layer refractive index and pair number of bragg mirror, thickness, position and oxidized material ' s refractive index of oxidized aperture, in detail. more practically, considering dos shell of laser as non - perfect one, or supposing that dos shell is separated from the laser, we can obtain more significative results
本工作以矢量場模型出發，對具有誘人應用前景的柱形垂直腔面發射結構（ vcsel ）的微腔半導體激光器（ mcsl ）進行了理論分析，建立了用於分析方柱形和圓柱形結構具有氧化孔徑層的激光器的模式特性的理論模型；對圓柱形結構情況進行了數值模擬，得到了振蕩波長、閾值增益隨激光器內外半徑、 bragg反射鏡層折射率、周期數以及氧化孔徑層厚度、位置和氧化物折射率的詳細變化規律；為使理論計算更接近實際，將外加金屬包殼視為非理想導體，或將金屬包殼與激光器結構隔開，分別對這兩種情況下的結果進行了討論。This paper founds mathematical model of twin - floater ocean wave generate electricity device, and analyzes primary parameters on the base of mathematical model for searching the optimal solution during designing this electricity device. it presents the method calculating the ocean wave forces on the several ideal floaters such as cube, vertical cylinder, horizontal cylinder, sphere by the theory that froude - krylow presupposition calculates a big diving body
在研究浮子幾何形狀與浮子所受波浪力的關系的過程中，本文利用弗汝德-克雷洛夫假定法計算大尺度潛體上的波浪力的思想理論來推導作用在幾種常見理想浮體：長方體、垂直圓柱體、水平圓柱體和球體上的垂直波浪力。As one part of the work, the induced current on perfect conductor surface is computed with mom method and graphed by origin. the factors, such as choice of basis function and sliced mounts of one cell, which affect solution accuracy are summarized. all of these provide a good basis for the latter computation of array scattering field
其中第一部分工作從電場積分方程出發，利用矩量法計算了理想導體貼片上的感應電流，進而得到平面陣列和曲面陣列的散射場，研究了陣列單元尺寸、排布形式和入射波的角度，以及曲面陣列的陣面形狀等因素對陣列散射場的影響規律。Electromagneto - thermoelastic waves with two relaxation times in a perfectly conducting medium
理想導體中具有兩個鬆弛時間的電磁熱彈性波Visual computation of bistafic cross section for complex targets with smooth surface
光滑理想導體表面目標雙站散射的可視化分析Before reforming the code to be a mhd, the boundary condition of sss code is modified, so that we can calculate the electro - magnetic implosion of ideal conductive liner, where the magnetic field diffusion is neglected
在進行一維磁流體力學改造之前，我們計算了磁壓驅動沒有磁擴散的理想導體內爆算例，主要是對sss程序的壓力脈沖邊界條件進行修改。On the other hand through the numerical simulation and the theoretical analysis, the characteristics of electro - magnetic implosion and detonation driven implosion have been compared, and it is concluded that the ability of driving liners with the electro - magnetic implosion is much stronger than that of detonation driven implosion
利用計算結果和炸藥驅動內爆進行了比較，並結合理論分析得出了磁壓驅動套筒內爆達到高速的能力要強于炸藥驅動的結論。同時以上述理想導體模型對磁驅動等熵壓縮進行了流體力學數值模擬，從數值模擬的角度論證了磁驅動加載可以進行等熵壓縮實驗。Based upon the hypothesis of ideal fluid, it derived out general wave force formulas using semi - analysis method
在理想流體的前提下，採用半解析法推導了波浪力的一般公式。分享友人