模式阻抗 的英文怎麼說

中文拼音 [shìkàng]
模式阻抗 英文
mode impedance
  • : 模名詞1. (模子) mould; pattern; matrix 2. (姓氏) a surname
  • : 名詞1 (樣式) type; style 2 (格式) pattern; form 3 (儀式; 典禮) ceremony; ritual 4 (自然科...
  • : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
  • : Ⅰ動詞1 (抵抗; 抵擋) resist; combat; fight 2 (拒絕; 抗拒) refuse; defy 3 (對等) contend with...
  • 模式 : model; mode; pattern; type; schema
  • 阻抗 : [電學] impedance
  1. Brings forward the basic network cell model of symmetrical blast vault and asymmetric blast vault. then studies and analyses airflow in vault of main voltage switchyard hall of xiluodu hydropower station which is far cry and large numbers of airflow conflux, brings forward concept of “ virtual embranchment ” and corresponding basic network cell model, regresses calculate expressions of flux uniformity coefficient and impedance of “ virtual embranchment ” of vault of main voltage switchyard hall of xiluodu hydropower station

    而後又採用cfd數值擬的方法對溪洛渡水電站主變洞排風拱頂這種多股氣流匯流的長距離通道內的氣流流動進行了分析,提出了「虛擬分支」的概念和相應的網路基元型,並回歸得到了溪洛渡水電站主變洞排風拱頂各個排風「虛擬分支」風量均勻系數以及的計算公
  2. Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account

    依照宋代《營造法》建造了抬梁殿堂木結構構件及結構型,對中國古代木結構中的典型構造如:柱腳在礎石頂面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了量化分析和實驗研究: (一)通過木柱石礎靜摩擦試驗,測定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律; (二)通過單柱承載力試驗,測定了古建築中木柱的受力變形特徵、破壞、及型材料的變形量、極限承載力、極限變形等參量; (三)通過柱架低周反復荷載試驗,測定了柱架的側移剛度、柱架恢復力特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載力和極限變形、及榫卯減振參數; (四)通過斗?低周反復荷載試驗和受壓試驗,測定了古建築木構件與木構件間摩擦系數,斗?側移剛度,斗?恢復力特性及滯回曲線,斗?壓極限承載力及受力變形規律; (五)通過抬梁殿堂間架型振動臺試驗,測定了殿堂木構架結構自振周期,地震反應振形、尼特性及尼比;按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的地震反應採用多點同步測量,對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。
  3. 2. based on the results of experimental data of the tailrace surge tank of yi xing pumped - storage station in jiangsu province, this research investigates the methods for the head loss coefficients of throttled surge tank with linking pipe by means of the method which incorporates experimental results with theoretical analysis

    結合江蘇宜興抽水蓄能電站尾水調壓室水力型試驗成果,採用理論計算與型試驗結果相結合的方法,對有連接管的調壓室局部水頭損失系數的計算方法進行了討論。
  4. For the first time, the coaxial ridge - disk - loaded cylindrical waveguide as sws is presented. its dispersion equation and the expression of coupling impedance are given by application of the field matching method. a series of numerical results show that the influence of structure dimensions on the dispersion characteristics and interaction impendance

    三、創造性地提出脊加載同軸膜片圓波導慢波結構,並對其採用嚴格的場匹配法,詳細推導了色散方程和耦合表達,並得到一系列有關系統結構參量與色散和耦合之關系的數值擬結果。
  5. For bus system installation, the focus is put on cable selection principle, installation process and antinoise measure ; for security protection equipment installation, the intrinsic safety concept, installation method equipment selection and installation under two electric power supply modes ( entity concept and fisco model ) and the bus system protection against surge voltage are illustrated ; for network component installation, the selecting, installing and integrating methods of general purpose terminators, repeaters, link equipment, bus power supply and impedance module are described

    在總線電纜的安裝方面,著重討論了電纜的選型原則、安裝方法和噪防擾措施;在安全保護設備安裝方面,介紹了總線系統中本質安全的概念、安裝方法、兩種供電方(實體概念和fisco型)下設備的選擇與安裝以及總線系統浪涌電壓的保護和設備安裝方法;在網路元件的安裝方面,主要列舉了通用終端器、中繼器、鏈路設備、總線電源及其塊等的選擇、安裝和集成方法,為總線系統的安裝提供了可以借鑒的實用經驗。
  6. Under windows nt and labview development environment, using the linear fit module, exponential fit module > general polynomial fit module of labview to design a method for fitting the experiment data, the results of curve fitting indicate that the purpose of general polynomial fitting is better than the rest. separating the equivalent input impedance of magnetostrictive transducers without stimulate current from input impedance of it with stimulate loop based on the results of curve fitting, and determining the syntony frequency and electric simulation network parameters of magnetostrictive transducers by this input impedance. finally, with labview network functions, realizing magnetostrictive transducer electric simulation system based on web server and discussing a scheme for this system network by datasocket. the method of this paper can more accurately determine the syntony frequency and electric simulation network parameters of magnetostrictive transducers than the testing method of syntony & anti - syntony. at the same time, discussing virtual instrument measurement system and how to realize magnetostrictive transducer electric simulation network system by labview network functions of network virtual instrument measurement development environment

    在windowsnt系統環境和labview虛擬儀器技術開發平臺下,首次利用labview中的直線擬合塊、指數擬合塊以及多項擬合塊,設計了一種對實驗所得數據進行曲線擬合的方法,對三種擬合方法進行了比較,曲線擬合結果表明,多項擬合方法相對于其它兩種擬合方法效果更好;根據曲線擬合的結果可從帶激勵線圈的磁致伸縮換能器的輸入中分離出磁致伸縮換能器鐵芯在無激勵電流時機械振動形成的等效輸入,並由此輸入確定了磁致伸縮換能器的諧振頻率及其電氣擬網路參數;最後通過labview提供的網路功能,實現了基於web服務器的磁致伸縮換能器電氣擬虛擬儀器測試系統,並探討了通過datasocket技術實現該系統網路化的方案。
  7. The mutual coupling between elements is expressed in terms of the normalized impedance matrix of the uniform linear array, the concise expressions for the optimized weight of the lms algorithm and the signal - to - interference - plus - noise ratio are given. the effect of mutual coupling on the performance of the sinr is illustrated with two examples, a method for compensating the mutual coupling is present, the compensation effect of this method is verified by example

    用譜分析法,把陣元問的互耦用陣列的歸一化矩陣來描述,推導了均勻線陣的最佳權矢量及信號干擾噪聲比的表達擬計算了互耦對自適應天線陣列的信號干擾噪聲比的影響,給出了一種校正互耦的方法,數值擬了校正的效果。
  8. Abstract : considering the characteristic of mixed traffic in chinese cityies, and the different given conditions, the author develops combinatorial mathematical programming models involving travel choice / destination choice / mode choice / route choice on the basis of symmetrical deterrence and presents the proof that the optimal solutions satisfy the random choice conditions

    文摘:考慮到我國城市混合交通擁擠的特點,針對不同的條件,作者給出了基於對稱的出行、訖點、方和路徑隨機選擇的綜合型,並證明該型的最優解能滿足出行、訖點、方和路徑隨機選擇的要求。
  9. 2. we design a configuration of frequency - doubler according to the optimum focus condition and the cavity stability condition | a + d | < 2 and optimize it based on " mode - matching " and " optimum coupling ". 99. 96 % of optical impedance - match efficiency and over 95 % of spatial mode - matching efficiency are achieved eventually by using t = 10 % of input coupler in our experiment

    ( 2 )根據最佳聚焦條件和腔的穩定性條件( | a + d | 2 )對四鏡環型倍頻腔進行了設計,並分別從「匹配」和「最佳輸入耦合鏡透射率的選擇」兩方面著手對腔進行優化,在我們的實驗中採用10的輸入耦合鏡,獲得匹配效率為99 . 96 ,空間匹配效率高於95以上的
  10. The research job includes bringing a project about fault calculation, using node impedance matrix as maths model of network to derive the arithmetic based on the fundamental of modifying impedance matrix by adding the branch, building the whole database with micosoft access. the whole project is realized with visual c + + 6. 0. it is applied to au hui electric network, and is proved correct

    本文首先根據系統的要求,綜合考慮各種運行方變化,提出合理的零序電流,分支系數的計算方案;然後採用節點矩陣作為系統的數學型,推導出基於支路追加法的矩陣快速補償優化演算法,從而實現計算方案;最後以micosoftaccess為工具設計出完整的故障計算數據庫。
  11. The engendering source of traffic volumes and their general influential factors have been presented, and the situation of nowadays highway transportation has been discussed. according to the introduction of traffic distribution theory and classical assignment method, analysis of traffic flow path selection among cities and that of special influential factors for traffic flow on toll highways, initial analysis to the forming mechanism of traffic volume on road sections has been made, and a probability model for path selection has been set up with the maximum - utility theory and disaggregating model. detailed analysis to impedances on road sections and their functions ( especially to three main composing factors of the impedances as cost of time, transport and toll and to the functional relations with traffic loads ) was made, at the same time, the relative cost calculating model was set up on the basis of the state - of - art achievements in both international and national researches

    主要研究內容包括:交通量的產生根源及一般影響因素分析和當前公路運輸地位討論;從交通分配理論及經典配流方法著手,通過分析城市間交通流路徑選擇行為和收費公路路段交通量特殊影響因素,初步提出路段交通量的形成機理,並採用效用極大原理和非集結型理論( disaggregationmodel ) ,建立用戶出行路徑選擇概率型;對路段及路函數(尤其對行程時間費用、車輛營運費用和道路收費這三個構成路段的主要因素及其與交通負荷間的函數關系)進行較為詳盡的分析,並以現階段國內外較為先進的研究成果為依據建立相應的成本測算型,其中,特別提出了兩種確定客貨車輛時間價值的分析方法;離散分析法和時間-費率轉換法,後者是在目前基礎調查、統計數據資料不夠齊全的現實下提出的一種確定道路系統內務車型時間價值的較為實用的新方法;對我國公路收費政策的背景和理論、實踐依據及費率的各種影響因素進行重點分析;從數學的角度證明合理費率的存在性,並以最優化理論為基礎,建立在普通收費公路和擁擠路段交通調控型收費公路兩種下合理費率的計算型等。
  12. Based on state - vectors load transfer method, this paper presents a new reliability analysis method of bored pile settlement. in the light of the eight full - scale piles, tests of the uncertainty analysis of pile settlement calculating by the new method is given. at last, this paper also analyzes the reliability of one of the eight piles

    根據樁周三階段理論,提出了用荷載傳遞計算單樁沉降可靠度的方法,根據8根試樁靜載試驗及其原位測試資料,對該方法計算的不定性作了分析,並對其中一根樁的沉降進行了可靠度計算。
  13. The surges in the throttled, simple, downriver throttled and simple and differential surge tanks and the calculating method of the waterhammer pressure in pipe systems have been studied through the theoretic analysis and experiments in the paper

    本文根據理論分析和型試驗相結合的方法,研究了、簡單、尾水和簡單、差動調壓室的水位波動過程和壓力管道水擊壓強的計算方法。
  14. With the consideration of the vertical wave effect of soil and soil - pile interaction, an approximate analytical solution to vertical vibration of pile system with variable impedance in visco - elastic layered soil is developed. a simplified and practical mathematical model for interaction between soil layers is proposed, and its applicability is theoretically investigated. based on this model and by using laplace transforms and the transmit property of impedance function, the analytical expression of the impedance function and solutions of the displacement and velocity response function in frequency domain and in time domain at the pile head are derived

    4 、從三維軸對稱土型出發,對考慮樁土耦合作用、土層層間聯系以及樁周土豎向應力梯度變化條件下的成層粘彈性土中完整樁及變樁系統縱向振動問題進行了研究,提出了成層土中變樁系統縱向振動問題的近似解析解法和樁周土層層間相互作用的簡化而實用的數學型,並利用拉氏變換和函數的傳遞性,獲得了成層土中任意段變樁樁頂函數的解析表達,以及樁頂速度導納和時域速度響應解析解和半解析解。
  15. The current in the dac ’ s output can drive the load, and the structure can save a buffer consisted of operational amplifier, so the structure can achieve high speed with no close - loop and feedback in this circuit

    該10位分段電流舵型數轉換器的輸出端可直接用電流輸出來驅動負載,省去運算放大器構成的輸出緩沖,整個電路中沒有形成閉環和反饋,因此這種電路結構可以達到很高的速度。
  16. In this paper, the method of compensation was used in the module of the offset coefficient to modify the matrix of resistor. it enhances the speed of calculation. and, the c + + language was used in the traditional setting programming

    其中,在分支系數計算塊中,採用補償法來修改矩陣,大大提高了計算速度;在整定計算塊,把傳統的整定公和c ~ ( + + )語言相結合,減少了工作量。
  17. How to retrofit a off - load - tap - changing transformer into a on - load - tap - changing one

    外加串聯變調壓是主變壓器無載調壓改有載調壓的重要,正確認識其整體特性十分重要。
  18. By the means of theory, simulation and experiment, the second part of this paper is then analyzed which is on the equivalent output resistance and inductance of the selected inverter and the effect to the output voltage ' s amplitude and phase caused by the different values of the inverter ' s component. it is concluded that by selecting certain precision level components, the difference of the output voltage amplitude is much greater than that of the output voltage phase

    其次通過理論、擬和實驗分析了本文所採用的電壓電流雙閉環瞬時控制方逆變器的等效輸出和兩臺逆變器器件差異對輸出電壓的幅值差和相位差的影響,從而得出選用一定精度的器件,兩臺逆變器輸出電壓的幅值差比相位差大得多的結論。
  19. According to the radar - absorbing model, the performance of rams of various absorber - volume - percentage with various frequency and the radar obsorbing performance of which in various thickness is predicted. according to the radar - absorbing model, the prerequisites of microwave electromagnetic parameters and the border curves for a single - layer homogeneous absorbing coating backed by a perfectly conducting plate to produce zero specular reflection are obtained by the steffensen speedup approach to solve the complex transcendental equation

    以吸波型為依據,用計算機求解了單層均勻各向同性吸波材料的匹配條件,通過數值擬得到了吸波材料匹配時電磁參數邊界曲線的數值擬等不匹配時寬帶吸波材料電磁參數的合理搭配規則和頻散特性。
  20. 2. under the condition that the layered soil surrounding pile can be simulated with general voigt model or general maxwell model, the mathematical equations for longitudinal vibration of a pile with self - viscosity is established in the form of integral transformation, and the corresponding solution is obtained by using impedance function

    2 、分別建立了樁側土為廣義voigt型和廣義maxwell型條件下考慮樁身材料尼的成層地基中樁縱向振動的積分變換形定解問題,並採用函數遞推法得到了相應解。
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