線型耗損 的英文怎麼說
中文拼音 [xiànxínghàosǔn]
線型耗損
英文
linear depletion-
After analyzing the switching characteristic of mosfet, the object function of optimizing curve of the output capacitance coss is confirmed according to the switching loss caused by output capacitance coss, then the optimized curve of the output capacitance coss is ascertained by applying zoutendijk to seek the optimized value with constraint ; the simulation of switching circuitry and dc - dc circuitry is tested at different frequency in pspice, then the least square method is adopted to fit simulation curves to calculate corresponding energy data
在電子線路模擬軟體pspice中進行了mosfet開關電路以及典型dc dc轉換線路模擬測試，針對不同頻段的測試結果，採用最小二乘擬合法對模擬曲線進行擬合，計算出相應的能量數據，最後綜合模擬結果確定出減小器件開關損耗，提高dc0c轉換線路效率的器件輸出電容cob優化曲線。Basing on other researchers ’ work, this paper has put forward a novel type of icc ( induced current cancellation ) shielding layer for rfic / mmic performance improvement, to reduce high frequency loss, increase q value, and expand its application frequency range. and present how to realize rfic / mmic components such as i / o pad, inductors, baluns and so on by applying icc shielding layer structures. furthermore co - design methods of ic component structure and foundry process structure designs has been presented in this thesis
在無線通信技術對cmos射頻/微波集成電路需求的大背景下，本論文提出了用於高頻集成電路（ rfic / mmic ）器件的各類新型icc （ inducedcurrentcancellation ，感應電流相消）屏蔽工藝結構，由此設計製造的ic部件解決了傳統半導體工藝無法實現射頻/微波集成電路的難題，以達到降低高頻集成電路器件的高頻損耗，提高器件q值以及擴寬器件應用頻帶的目的。In order to utilize the frquency resource adequately and increase the capacity of mobile communication system, the wireless electric wave propagation of existing mobile system always adopts the microcell structure. forecasting the path loss characteristic of electric wave accurately can provide the necessary condition for the layout and design of wireless network, at the same time it is a precondition for the research on the microcell mobile system. the methods of forecasting of wireless electric wave propagation can divide into two parts : one is pluse and respond, that is establish the empirical model based on experimental and statistical data ; the other is ray tracing method, that is establish the deterministic model based on theoretical analyse. the paper discuss the characteristic of wireless signal electric wave transmition in symmetrical atmosphere of earth, and introduce the common path loss transmition model in land mobile communication system, also point out the localization of these models based on experiential methods
而精確預測無線電波傳播路徑損耗特性，則為合理的微蜂窩無線網路規劃、設計提供了必要條件，同時也是研究微蜂窩移動通信系統性能的前提。無線電波傳播預測的方法分為兩類：一是用沖激響應法，即根據實驗、統計所得數據建立經驗性傳播預測模型；另一種是用射線跟蹤方法，即依據理論分析來建立確定性的傳播預測模型。本文首先討論了在地球表面均勻大氣中的無線電波傳播的基本特性，介紹了陸地移動通信系統中常用的幾種電波傳播路徑損耗經驗性預測模型，並指出了這些經驗性傳播模型對于微蜂窩小區無線電波傳播特性研究的局限性。Accordingly ray tracing model for microcells propagation prediction has become an important subject. this paper discussed the characteristic of propagation in symmetrical atmosphere on the earth, and introduced several kinds of traditional path loss propagation model in land mobile communication system, also pointed out the localization of these models based on experiential methods
本文首先討論了在地球表面均勻大氣中的無線電波傳播的基本特性，介紹了陸地移動通信系統中常用的幾種電波傳播路徑損耗經驗性預測模型，並指出了這些經驗性傳播模型對于微蜂窩小區無線電波傳播特性研究的局限性。On the basis of discussing the analyzed restraint relationship between the link loss and the spot - beam antenna gain a new spot - beam model of optimum design named link level balance spot - beam model is proposed
在分析鏈路損耗與點波束天線增益之間制約關系的基礎上，提出了一種新的點波束優化設計模型鏈路電平平衡點波束模型。In the case that shortage are allowedto occur, we consider that the losing in inventory is correlated with stocks andtime. we also consider the correlation between the variety and the losing ininventory is nonlinear. this paper use view points and methods di ? erent fromsome references, and studies its optimal policy
本文在允許缺貨條件下，假定庫存損耗與庫存量和時間均有關，且庫存變化率與庫存損耗量之間為非線性關系，建立了新的eoq模型，討論了模型解的存在性。Dld clutches are singledisc clutches for dry operation, without sliping the coil not rotating. high transmitting torque, quick response and no drag torque
Dld系列系無滑環乾式、通電型工作的單片電磁離合器，線圈不旋轉，一個摩擦副，結構緊湊，傳遞力矩大，響應迅速，無空載損耗。Dld2 clutches are singledisc clutches for dry operation, without sliping the coil not rotating. high transmitting torque, quick response and no drag torque
Dld2系列系無滑環乾式，通電型工作的單片電磁離合器，線圈不旋轉，一個摩擦付，結構緊湊，傳遞力矩大，響應迅速，無空載損耗。In accordance with the fact of power system and the analysis of the power flow induced by a certain wheeling transaction in one transmission line to allocate the transmission losses and the unit power price of each transmission line, the paper proposed a corresponding wheeling costs model
本文主要討論了電力市場中轉運費用的定價問題，結合電力系統的實際情況，通過描述轉運業務對線路的使用程度來對線路固定成本及網路損耗進行分攤，並提出相應的轉運費定價模型。Switching power amplifier is popularly used because of its virtues of low power losses, high efficiency and high frequency bandwidth
開關型功率放大器因其損耗小、效率高、通頻帶寬等優點，廣泛取代了早期低效率的線性功放，成為目前功率放大器研究的重點。The measurement of on - line hv capacitive type equipments " tgd can get accurate information of insulation in time, and how to improve the accurate degree of on - line tg is still not solve by efficiency ways at present
測量介質損耗角tg可以準確反映高壓電容型設備的絕緣變化情況，如何有效提高tg值在線監測的測量準確程度還有待進一步解決。Through the loss model of lim, best efficiency control scheme is proposed based on the vector control, by which low efficiency of lim under light load or low speed is improved. the control scheme is proved effective through simulation under a specified speed - location curve
通過建立電機損耗模型，在矢量控制的基礎上設計了最優效率控制策略，解決了輕載或低速運行時的效率低下問題，通過指定速度位置曲線下的模擬分析驗證了控制策略的有效性。Based on quasi - linear model of sr motor, the influences of angle on phase current, output power, energy loss are analyzed. an optimum result of angle is produced in accordance to given target
基於sr電機的準線性模型，本文分析了開通角和關斷角與相電流、輸出功率以及損耗之間的關系，並根據給定的優化目標，給出了該電機開通角和關斷角的優化結果。For the algorithm of reactive power optimization, presented in this paper, in order to found the linear programming model equations, the objective function is minimum total power losses, the controlled variables include the compensating capacity of reactive power, generator bus voltages and transformer tap positions, the state variables include reactive power of the generators, and the voltage amplitudes in the ends of transformers
本文研究的電力系統無功優化演算法是以整個網路的損耗最小為目標函數，以無功補償設備出力、發電機端電壓和可調變壓器變比為控制變量，以發電機的無功出力和變壓器端電壓幅值為狀態變量建立了線性規劃模型方程。Due to restriction with the array aperture transition time, traditional phased array radar works under relative narrow signal bandwidth, so this restricts the application of phased array radar in the field where high performance is demanded. however, optically controlled phased array radar ( ocpar ) adopts the photoelectron technology, counteracts the aperture transition time via the method of optical true time delay ( ottd ), so it can realize wide instantaneous bandwidth and squint - free operation ; meanwhile, it can realize the miniaturization of phased array radar and has super anti - electromagnetism interference capability
而光控相控陣雷達採用光電子技術，通過光實時延遲的方法來抵消孔徑渡越時間，可以實現相控陣雷達的寬帶寬角掃描;同時也可以使得相控陣雷達小型化，並具有強的抗電磁干擾的能力;另外，由於光纖傳輸具有損耗低、頻帶寬等固有優點，採用光纖連接雷達天線和雷達控制中心，可以使兩者的距離較採用同軸電纜有較大的提高，更有利於保護雷達控制中心。A simulation and modeling mechanism is studied and proposed for multirate transmission protocol. based on the wlan that adopts ofdm transmission technique, we first assumed that the small - scall fading and multipath in ofdm sub - channel is rayleigh, and large - scale path loss could be described by bi - linearity model, and then we analyzed the rationality
基於採用ofdm傳輸技術的wlan ，我們假設ofdm子通道的小尺度衰落服從rayleigh分佈，路徑損耗可以用雙線性模型描述，並對假設的合理性進行了分析，將決定速率切換的誤幀率等物理層性能參數和媒質控制協議有機地結合在一起，對多速率傳輸建模進行了有意的探索。A new terahertz source of folded waveguide traveling - wave - tube which based on vacuum electronics is introduced, which may answer the question for scarcity of small, economical terahertz source with continuous wave of high average power. secondly, transmission characteristics of terahertz wave in the periodic slow wave circuit of folded waveguide traveling - wave - tube have been researched combined with development of micro - fabrication technology. dispersion relation and interaction impedance of the slow wave circuit are deduced by the way of equivalent circuit, and results accounted by theory are close to those simulated by software
其次，結合計算機模擬技術對這種新型太赫茲輻射源的折疊波導慢波線路傳輸特性進行研究:用等效電路法從理論上推導了慢波電路場、色散關系及線路耦合阻抗，電磁模擬軟體計算得出的慢波電路色散曲線與理論計算所得結果基本上一致，表明這種尺寸的慢波電路在太赫茲頻段有著色散曲線較平坦以及寬帶、低損耗的良好傳輸特性。Based on the effective mass theory and critical state model, an anisotropic theory of critical current and ac losses for single hts tape and tape stacks were established. analytical formulae were presented to calculate critical currents and ac losses with an arbitrary angle between the wide side of hts tape and the direction of ac or dc applied fields. from the anisotropic theory of ac losses of hts sample, a numerical model to calculate ac losses of hts coil was developed
基於臨界態模型與高溫超導體的有效質量理論，建立了高溫超導帶材及並聯堆疊帶材的交流損耗與臨界電流的各向異性理論模型；給出了高溫超導帶材的交流損耗及臨界電流隨（交、直流）背景磁場與超導帶面夾角變化規律的理論公式；依據所建立的高溫超導短樣帶材的各向異性理論公式，給出了高溫超導線圈交流損耗的數值計算模型；並利用該模型，計算了高溫超導雙餅線圈的交流損耗；並與實驗測量結果進行了比較分析。To accelerate the development of next generation high dwdm system, the pape r also researches the property of gain. based on optical wave nonlinear transmission equation, the gain model of fra is established. by the way of numerical analysis, it is obtained that the gain of fra has relation with pump power, input signal wave power, the effective area and absorption of fiber. the obtained conclusion has definite instruction to the design of fra
為了促進下一代超高速dwdm密集波分復用技術的發展，本文還研究了光纖喇曼放大器的增益特性，根據光波非線性傳輸方程建立光纖喇曼放大器增益模型，通過數值模擬分析了泵浦波功率、信號輸入光功率、以及光纖有效面積和損耗對光纖喇曼放大器增益的影響，得出了一些對光纖喇曼放大器的設計有一定的指導意義的結論。For there are few good analytical methods in ntls ' sensitivity, in this paper, we uesd kuroda ' s equivalent circuit and adjoint network method to derive the sensitivity formulas of parabolic lossless ntl. and then we proposed the way of lumped loss, like the method of dealing with the loss in emtp, to deal with the loss of parabolic lossy ntl. and on the base of the way of lumped loss, we got the sensitivity formulas of parabolic lossy ntl
對于非均勻線的靈敏度分析，目前尚未提出很好的方法。本文首先利用基於科羅達等效的等效電路，使用伴隨網路法推導出了無損拋物線型非均勻線的時、頻域靈敏度公式。其次，為了解決有損拋物線型非均勻線的靈敏度計算，提出了一種類似emtp的集中處理損耗的有損拋物線型非均勻線的方法。分享友人