曲增益 的英文怎麼說
中文拼音 [qūzēngyì]
曲增益
英文
twist gain-
Recently, with the development of railage, passenger transport, freight and the density of train have increased mostly. it results in rail - wear day after day, especially the side rail - wear. so the ministry of railway has been taking the situation of rail into account greatly to insure train and rail safely
近年來隨著鐵路重載運輸的大力發展，客貨運量和行車密度大幅度增長，從而導致鋼軌磨耗日益嚴重，尤其是曲線鋼軌的側面磨耗急劇上升，因此鐵路工務部門十分重視對鋼軌傷損情況的檢測，以確保行車的平穩性和安全性。As the percentage of flexible space structures and the requirement for control accuracy continuousely increase, the control of flexible space structures is increasingly important. focusing on the problem of vibration control of clamped beam, the thesis studied the application of wave absorbing theory to the vibration control
隨著空間結構中的撓性結構的比重的不斷增加和軌道、姿態控制精度要求的不斷提高，使撓性結構振動控制日益重要，本文針對懸臂梁的彎曲振動控制問題，研究了波吸收器在振動控制中的應用。Gain curve of medium
媒質增益曲線Quantum capture is a complicated process and capture time computation and experiment test are provided. it is difficult to ascertain carrier ' s transportation and distribution in multiply quantum wels and tunneling time and heating emitting time computations are also provided. optical gain whose formula is complicated is a critical parameter and it is useful for structuring model to obtain a concise formula by means of experiment curve
詳細說明了確定半導體激光器速率方程的一些重要參量的方法，如：載流子在三維sch區的輸運行為對激光器的調制特性有較大影響；量子阱對載流子的捕獲是一個復雜的過程，文中給出了量子捕獲時間的計算方法以及實驗證明；多量子阱中載流子輸運與分佈也是相當復雜的問題，文中給出了隧穿時間與熱發射時間的計算方法；光增益是關鍵的參量，它的解析式相當繁瑣，由實驗曲線擬合其較為簡明的經驗式，對定模工作是有利的。On the basis of the study of the theory and appraise method on land use in the small towns from home and abroad, this paper at first conducts a deep study on the development and role of the small towns, indicating that its development has sawn an uneven development phrase and becomes a carrier of the enterprises, a pool of surplus laborers, a hub of material exchanges between the rural and urban areas, a base of spiritual civilization, an important way to achieve urbanization. second, it conducts a study on the situation and features and the problems the land use, indicating that the efficiency of the land use is low, which has a direct influence on the development of agriculture and the role of the small towns. and the study of the demand of the land indicates the shortage of land is serious, and the small town must rationally use the land and increases its intensive role and the economical efficiency to meet the demand
在分析國內外已有關于小城鎮土地利用的理論與評價方法的基礎上，首先對小城鎮在我國的發展、地位和作用進行了深入的分析，判明我國小城鎮發展經歷了一個曲折向上的發展階段，已成為鄉鎮企業的載體，農村剩餘勞動力的蓄水池，城鄉物資交流的樞紐，農村精神文明的基地，是我國城市化的重要途徑；其次，對小城鎮土地資源利用現狀和特徵進行了探討，並對發展小城鎮建設導致的土地利用問題進行了剖析，表明目前我國大多數小城鎮土地效益和規模效益低下，佔用耕地過多，直接影響農業的發展，影響小城鎮的地位和作用；通過小城鎮土地供需分析研究表明，我國土地短缺十分嚴峻，小城鎮土地需求缺口較大，小城鎮必須合理利用現有土地，增強集約功能和土地經濟效益，從而緩解需求壓力；最後，論文通過運用特爾菲法，描述統計分析法、多元統計分析（主成分分析）法和系統分析法中的層次分析法（ ahp ）等一系列方法，結合定性和定量兩方面，從土地質量、土地資源數量與結構、土地經濟效益、環境效益、社會效益等五個方面進行分析，篩選、建立了土地資源利用評價指標體系，在因子評價的基礎上，建立了土地利用綜合評價模型，並給出了評價過程和方法。We presents a detailed studied of the linewidth of parametric light in clbo - opo caused by the linewidth of pumping beam, off axis phase matching, divergence angle of pumping, time above threshold, high gain coefficient of nlo crystal, fluctuate of cavitylength, spontaneous radiation, according to the momentum and energy conversion laws, and the sellmeier equations of the clbo, we calculated curves of the type - i and type - ii compared with the bbo ' s
根據能量動量守恆關系和clbo的色散方程，詳細分析了由於泵浦光的線寬、泵浦光偏軸泵浦、泵浦光的發散角、泵浦光功率超過參量光振蕩閾值一定倍數、高增益系數、有效腔長波動以及自發輻射引起的參量光線寬，並得到了與bbo晶體在類、類相位匹配下比較的理論曲線。Because of the positively sloping hong kong dollar yield curve, and the tendency of the yield margin over us treasuries to rise along the curve, the increasing proportion of longer paper tended to incur higher interest costs
由於港元收益率曲線向上傾斜，而且與美國國庫券的收益率差距也隨年期上升有擴闊趨勢，長期外匯基金債券的比例增加會令利息成本增加。It really provides convenience to evaluate and optimize the design result. 3 ) vibration analysis has been fulfilled by calling some math libraries and graphic libraries in matlab to plot graphics such as velocity - time, displacement - velocity, step response, impulse response, gain - frequency and phase - frequency. we can know the capabilities of the spring system from the graphics
3 、在matlab環境下調用相應的數學函數庫和圖形庫對設計的彈簧進行分析，繪制彈簧加載后系統的速度-時間響應曲線、速度-位移響應曲線、階躍響應曲線、脈沖響應曲線、增益-頻率響應曲線和相角-頻率響應曲線，根據曲線來分析系統的各項性能。The innovative ideas in this paper is to replace the linear fixed - gain pid controller for a nonlinear pid controller. based on the step response curves of conventional control system, we analyze the ideal variety of three gains in different times and construct the simulated curves of proportional, intergral and derivative gain. the controllers has considered all sorts of imperceptible factors affecting the servo performances in a lpmsm servo system, which include the parametric uncertainties brought by the changes of the mobile mass, the dynamitic performance of the system and the size of input. to solve the problem of so many unknown parameters, we use transmit arithmetic to find the parameters which are fit for the system. to keep the robust and stable performance
本文的創新之處在於，將傳統的固定增益的pid控制器用非線性pid控制器來代替，並在此基礎上，就一般控制系統的階躍響應曲線，分析了在不同響應時間階段pid的三個增益調節參數的理想變化情況，並根據這些理想變化，分別給出了比例、積分、微分增益參數的一種連續的非線性擬和函數。在分析雙位置環時，仔細考慮了能使系統性能變壞的各種因素，如系統的動態性能及控制出入能量的大小等等。Optical field intensity has been simulated by beam transmission method ( bpm ), bend loss has been calculated by used of the method of conformal transformations, gain has been accounted by the method of lines, and different curved optical waveguides have been compared in the last
採用bpm軟體模擬光場在彎曲波導中的分佈，用保角變換和射線法計算其彎曲損耗及增益，最後對不同結構的彎曲波導進行比較。However, to suppress high order modes, bending multimode fiber will bring additional power wastage, which will affect the output characteristics of fiber amplifiers and fiber lasers, such as the gain and pulse energy
對多模光纖採取彎曲來抑制高階模的方法帶來了額外的功率損耗，這個額外的損耗對光纖放大器的增益以及輸出的激光脈沖能量都會造成影響。In the section of theory, we mainly studied optical parameter effect, discussed physical mechanism of optical parameter laser and normalized coupled wave equation and got the solution. we also carried out the analysis of gain mode of optical parameter oscillation, studied the threshold condition, analyzed output characteristics and then achieved characteristic curve
本文理論部分主要作了有關光參量效應方面的研究，探討了光參量振蕩器的物理機制、參量振蕩的歸一化耦合波方程，求解得到了參量振蕩器的耦合波函數，同時對光參量振蕩的增益模式進行了分析，研究了使參量振蕩的閾值條件，並對光參量振蕩器的輸出特性進行了分析，得到了特性曲線。The method is to judge whether a system is stable by analyzing the amplification of loop circuit based on amplitude frequency response and phase frequency or not
這種方法是將電路的幅頻特性和相頻特性曲線結合起來對環路增益進行分析，以此作為判斷系統是否穩定的依據。Because its largest singular value curve is identical before or after the unstable process is mirror - injected, and the closed loop gain shaping algorithm constructs directly the robust controller using parameters having engineering sense according to the shape of the singular value curves of the robust performance index, the designed controller has equally robustness to the unstable process
由於非穩定過程在鏡像映射前後的奇異值曲線相同，而閉環增益成形方法直接根據魯棒性能指標的奇異值曲線形狀用閉環系統具有工程意義的參數構造出魯棒控制器，故該控制器對非穩定過程同樣具有魯棒性。Fifthly, a reasonable explanation to the phenomenon was given that the temporal behavior of twm will be different while the signal beam opening time delays a different time after pump beam opened
對實驗觀察到信號光打開時間延遲將導致兩波耦合能量增益曲線峰值增益降低的現象，從光扇時間演化角度進行了合理的解釋。Increased partisanship is also distorting people ' s perceptions of the economy
日益增多的黨派偏見也扭曲了人們對經濟狀況的感受。By examining the micro mechanism of photorefractive effect, we can find that an external dc electric - field can greatly alter ( improve or worsen ) the photorefractive properties of sbnrcr. so it is important to study electric - field effects in these materials. in this thesis, the characters of beam coupling and transmission in sbn : cr crystals under external dc electric - fields are investigated theoretically and experimentally
本文依據光折變非線性光學的光波耦合理論和傳輸理論，對sbn cr晶體在外加直流電場作用下的光波耦合特性和傳輸特性進行了理論分析和實驗研究，主要內容包括： （ 1 ）從理論上分析了外加直流電場對光折變二波耦合增益的影響，給出了sbn 60晶體的強度增益系數隨外加電場變化的理論計算曲線。The writer points out : losing control and out of balance of social power which cause the breakup and imbalance of interest is the social roots of duty crimes " increasing ; the malpractices of economic system such as substandard market system, unreasonable property construction, abnormal financial system and disordered government function are the economic roots ; there are also some political roots. for example, the reform of political system is delayed, the political participation system ca n ' t satisfy the citizens " demands and the citizens ca n ' t supervise and restrict effectively on public power by political participation ; at the same time, the cadre stratum have some wrong opinions on life, value, interest, power and so forth during the period of transition. these subjective factors are ideological roots
指出：轉型期社會權力失控與失衡並由此引發的利益分化與失調是職務犯罪增生的主要社會根源；不規范的市場體系，不合理的產權結構，畸形的財政體制以及錯位的政府職能等經濟體制方面的弊端是職務犯罪增生的主要經濟根源；政治體制改革滯后，政治參與機制不能滿足公民政治參與的需求，公民尚不能通過政治參與對公共權力實施有效的制約和監督，是職務犯罪增生的主要政治根源；而轉型期幹部階層中錯誤的人生觀、歪曲的價值觀、顛倒的利益觀、畸形的權力觀等主觀因素則是職務犯罪增生的思想根源。The method of dynamic gain equalization based on the temperature and bending characteristics of the novel lpfg was demonstrated. another method based on the temperature and transverse load characteristics was also demonstrated. the resonant amplitude and wavelength of the lpfg were adjusted by applying bend or transverse load and temperature to the lpfg, respectively
Ii .利用新型長周期光纖光柵進行了edfa的動態增益均衡，根據新型長周期光纖光柵的可調諧性，提出了一種基於新型長周期光纖光柵的溫度及彎曲特性的動態增益均衡器，並介紹了另外一種基於溫度及橫向壓力特性的動態增益均衡器。Contraposing the controller made up of fixed - plus proportion and intelligent integral can not achieve the expectant dynamic and static characteristic, the control strategies of seasoned manipulators are simulated in different phases of step response curve of the system, a nonlinear pid human - simulated intelligent control algorithm is presented by importing p, nonlinear i and fixed - plus d into human - simulated intelligent control
摘要針對仿人智能演算法中，由固定增益的比例和智能積分組成的控制器不能獲得滿意的動靜態控制性能的缺點，在系統階躍響應曲線的不同階段，模擬了經驗豐富的操作人員的控制策略，將非線性比例環節、積分環節和固定增益的微分環節引入到仿人智能控制中，提出了一種非線性pid仿人智能控制演算法。分享友人