有偏壓的 的英文怎麼說
中文拼音 [yǒupiānyāde]
有偏壓的
英文
vorgespannt-
C ) we found that the negative bias or ion bombardment was important to the orientation variation of the films. low bias is helpful for the basal plane orientation, while under high bias the films shows that the c axis of bn was nearly parallel to the substrate
C )偏壓或離子轟擊對取向有重要影響,低偏壓有利於形成基面對襯底平行的取向,而在高偏壓下,薄膜表現為c軸平行襯底的取向。The displacement current mechanism is operative only for capacitors under reverse bias or very weak forward bias conditions which maintain a space-charge layer.
位移電流的機理只對反向偏壓或要維持空間電荷層所需要的非常弱的正向偏壓條件下的電容器才有用。The way of taking one nth out of capacitor ' s the first harmonic capacitive reactance as its nth harmonic impedance is verified whit the data from tang7c. according to the approximately estimating method, the first harmonic impedance of 220kv system is calculated. on the basis of the models, this paper gives the harmonic equivalent circuit of substation and gives the b ( n ) function of the harmonic time n. when the capacitors has different combination, b ( n ) ' s value will also change, with the inputting local measurement data, the paper studies the series and parallel resonance at the substation, and deduces that the reason the capacitor ' s fuse of tang6c is frequently interrupted is that its capacitor current contains a large number of 5th harmonics, and that the reason the discharging pt of tang7c capacitor being exploded is also that the 7th and 9th harmonic currents are amplified
據此,對該站進行了串聯諧振分析和並聯諧振分析,並結合測試數據和有關變電站的運行記錄,指出了導致該站電容器湯6c頻繁燒保險的主要原因是5次諧波電流含量偏高,引起湯7c放電pt爆炸也是因為7次和9次諧波電流被放大。針對這些導致湯陰變電站補償電容器故障的原因,提出了相應的諧波治理措施,包括針對湯6c電容器5次諧波電流含量偏高的原因,提出了停運湯6c電容器或者通過把湯sc電容器的部分容量併入湯6c電容器(湯sc其餘部分停運)以增加湯6c諧波承受能力的措施;針對# 2變低壓側7次和9次諧波電流被放大的現象,提出了在湯7c電容器上加裝一定百分比的串聯電抗器的措施。With the aid of baffle movement, a technique named masking pretreatment and the method of vacuum deposition have been used to fabricate the ag - o - cs photoemissive thin films with internal field - assisted structure for the first time. the internal field - assisted photoemission characteristics of ag - o - cs thin films show that the photoelectric sensitivity is increased when the internal electric field is applied to the thin films, which indicates that the electric field has been effectively provided to the thin films by the above - mentioned internal field - assisted structure. such an enhanced photoemission is attributed to the variations in energy - band structure of ag - o - cs thin films, and which are considered to induce the lower - energy electrons to participate in the photoemission
通過掩膜預處理和擋板轉移技術的配合,利用真空沉積方法首次制備了內場助結構ag - o - cs光電發射薄膜。 ag - o - cs薄膜內場助光電發射特性測試結果表明,該方法能夠有效地實現ag - o - cs薄膜體內電場的加載與表面電極的引出,薄膜光電靈敏度隨內場偏壓的增大而上升。 ag - o - cs薄膜在內場作用下的光電發射增強現象與薄膜體內能帶結構變化低能電子參與光電發射等物理機制有關。Furthermore, the existing theory can ’ t explain the photocurrent gain, so the i - v characteristics under illumination are the keystone of the research work
並且現有理論無法解釋光增益現象,因此穩態光照下電流隨偏壓變化的關系成為本文研究的重點之一。In corn ' s wild relative, teosinte, these alleles occur in only 7 to 36 percent of plants, indicating that the selection pressure applied by early farmers to favor those alleles was rapid and thorough
而在玉米的野生親戚大芻草里,這些對偶基因的出現率只有7 ~ 36 % ,顯示出早期農民對偏好的對偶基因,施予的選擇壓力很徹底而且快速。The auto - body assembly requires hundreds of sheet metals. for accounting the effect of low stiffness of sheet metals, their tolerances based on analysis and synthesis have an influence on the quality of the assembly
轎車車身主要由沖壓金屬薄壁件組成,具有柔性大、剛度小等特點,其裝配偏差的分析與綜合對裝配質量有很大影響。So, the bond stress and slip of src eccentric loading columns must be accurately measured and studied further
因此有必要通過準確量測構件內部的粘結應力和滑移,進一步對偏壓柱的粘結滑移性能進行研究。Effects of diverse environmental factors on the growth rate ( od4oo ) and nitrogenase activity ( ara ) of the strain w12 hi nitrogen - free culture were investigated in our experiments. the results implied that the strain w12 could easily adapt to different cultural conditions : it could use various carbon sources ( especially glucose, sucrose, malic acid, mannitol ), propagate quickly and fix nitrogen at a temperature range of 15 ? to 40 ? and at 25 - 35 ? for optimum, at a ph range of 4 to 8. 5, at a saline concentration range of 0. 01 % to 1. 5 % ; low nlv " concentration had little effect on its nitrogenase activity. ara could also be detected when it grow in the culture media with 5mmol / l ntv "
W12菌株對環境因子的適應性研究:無氮培養條件下,測定溫度、碳源、酸堿度、滲透壓對w12生長及固氮能力的影響,結果表明,在15 - 40下均能生長並表達固氮酶活性,其最適生長及固氮的溫度為25 - 35 ;能利用葡萄糖、蔗糖、蘋果酸、甘露醇等多種碳源生長並固氮,當培養基中同時存在蔗糖和蘋果酸時,細菌生長和固氮活性最強;在偏酸和偏堿的條件下( ph4 . 5 - 8 . 5 )均能保持較強的生長勢和較高的固氮酶活性,並能通過調節自身代謝平衡並適應環境的酸、堿性變化,使培養液趨于中性:能耐受較高的滲透壓,培養液中卜、 5 naci濃度對其生長和固氮酶活性影響不大,當naci濃度升至2時,菌株的生長勢及固氮酶活性才有所下降:低濃度的鉸對其固氮酶活性影響不大,在0As the microbolometer which is voltage biased express some characters different from other infrared detectors under the effect of electric heat and infrared radiation together, the computing method of parameters, such as responsivity, noise, noise equivalent temperature different ( netd ), noise equivalent power ( nep ), optical gain, detectivity and so on is given in this paper. some of these parameters are particular compared with other detectors, and some have difference between microbolometer and other detectors
由於微測輻射熱計在施加偏置電壓的情況下,電熱效應與紅外輻射的共同作用使它表現出與其他紅外探測器完全不同的一些特徵,文中給出了響應率、噪聲、噪聲等效功率、噪聲等效溫差、光學增益、探測率等參數的計算方法,這些參數中的部分是微測輻射熱計獨有的,或者與其他的紅外探測器的同一參數有所區別。In a ccp system, there is a discontiguous characteristic on tuned substrate self - bias. when the impedance between substrate and ground was made increasingly inductive, a large negative dc potential developed on the substrate
在ccp ( capacitivecouplingplasma )中調諧基片偏壓具有不連續變化現象,當基片之間為漸增的感抗時,基片上會產生漸增的負偏壓。The macro model of drift region resistance was established based on the solution of poisson ’ s equations and continuity equations. by the combination of spice mos ( level = 3 ) and the macro model, the complete dddmos model was then obtained, which accords well with simulated data. by simulating and comparing different devices of different process parameters, the model is applicable for different bias regions and can be useful in the power integrated circuit research in future
首先介紹了器件建模的基本原理及相關模擬技術,然後利用工藝模擬軟體生成器件基本結構,並對其基本特性進行了分析;分析了業內和學術界比較通用的高壓器件建模的方法,隨后在模擬實驗的基礎上著重分析了dddmos的物理特性,在求解泊松方程、連續性方程等基本方程的基礎上,建立有物理意義的漂移區電阻的宏模型;隨后結合spicemos ( level = 3 )模型而得到完整的dddmos模型,此模型與模擬數據符合得比較好,通過對不同工藝參數的器件進行模擬比較,該模型能夠覆蓋不同的工作偏壓范圍,具有較明確的物理意義,對今後的功率集成電路的研發有一定的參考意義。It restricts the development and application of this technology that a concrete column is strengthened with cfrp. so it is very necessary that the bearing performance of eccentrically loaded column wrapped cfrp is researched
其限制了cfrp加固混凝土柱技術的推廣和應用,有必要對cfrp加固混凝土偏壓柱的受力性能進行研究。The experimental result has shown that the ultimate bearing capacity and ductility of eccentrically loaded columns have a certain increase when they are strengthened with transverse cfrp. in addition, the excessive eccentrically loaded columns have a more notable effect as a result of strengthening with the combination of longitudinal and transverse cfrp. the increasing degree of strengthening columns ’ bearing capacity reduces while the volume of cfrp increases
試驗結果表明,碳纖維布橫向加固偏壓柱時,其承載力和延性均有一定程度的提高;對于大偏心受壓柱,縱橫向聯合粘貼碳纖維布的加固效果非常明顯;隨著cfrp加固層數的增加,構件承載力的提高幅度減小。Taking load uncertainties, infeasibility problem and multiple objection of the reactive power optimization in the radial distribution system into consideration, loads are modeled as fuzzy interval numbers. fuzzy power flow is proposed based on fuzzy interval load for the more practical membership function of line losses rate and maximal voltages offset. this thesis presents multiple objection model of the reactive power optimization considering uncertainties using the fuzzy set theory
對配電網電壓無功優化問題中負荷的非概率性的不確定性問題、多目標問題、約束不可行性問題進行了研究,用模糊區間來描述實際的負荷情況,並用負荷的模糊區間值計算配電網的潮流,得到有功功率損耗和電壓的模糊區間值,使網損率和節點電壓最大偏移量的隸屬函數更接近實際情況;將改進遺傳演算法與模糊集理論相結合,通過求解多目標函數和約束條件的模糊集合的交集,得出網損率和節點電壓最大偏移量最小的最優運行狀態。The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault , researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system , a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows : this paper compared some existing methods in excitation control , fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 , indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which , discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations , made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations , which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations , there were several very important parameters of power system - - rotor angle ( ) , rotor speed ( ) , generator q axis voltage ( eq ) , transient voltage ( e ' q ) , active power ( pe ) , mechanical input power ( pm ) , valve opening ( ) , generator terminal voltage ( vt ) , based on the model , nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault , which achieved better postfault regulation compared with another two routine methods , one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either
在介紹逆系統理論的基礎上,詳細介紹了dfl理論,通過比較闡明了dfl理論其本質是逆系統方法的一類,並結合具體課題推導出的模型方程將dfl理論進行了擴展,使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程,此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ,在此基礎上建立了實用的電力系統簡化的數學模型,並將擴展的dfl理論應用於此模型系統,結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器,通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門(考慮發電機的飽和因素)進行了對比,證實了採用此種控制器可以有效地提高電力系統的暫態穩定性,並且在電力系統遭受小干擾時同樣具有良好的調節性能。It also shows that hardness increases with the increase of film thickness, substrate temperature and substrate bias. and among these processing parameters, the substrate temperature and bias have the more prominent influences
同時,隨著膜厚的增加,基片溫度的提高以及對基片施加的偏壓的增高,薄膜的硬度都有不同程度的提高。Next, basing on discrete electric potential, plots the distributing figure of the electic potential and electic field, and analyzes relationship between the operational characteristics of static induction transistor and the structure parameter and bias voltage
其次依據求得的離散電位值,繪制相應的電位分布圖形和電場分布圖形。最後通過對圖形的分析,解析有機靜電感應三極體的工作特性與器件結構參數和所加偏壓的關系。This paper has discussed preparing diamond - like carbon films by means of micro - wave ecr plasma source ion implantation and plasma enhanced chemical vapour deposition. we use the raman spectrum, ft - ir, afm and so on to study the dlc film. the result indicates : different bias voltage, frequency and gas flow rate of psii will have impact on sp3 proportion of dlc films, we find high bias voltage, low frequency and moderate gas flow rate can prepare high sp3 proportion dlc films ; we simply illustrate the influence of bias voltage on sp3 proportion of dlc films in pecvd
研究結果表明:在全方位離子注入技術中,不同的偏壓、頻率、氣體流量都對薄膜中sp ~ 3鍵比例有所影響,文中對具體的影響進行了分析,發現偏壓的增加、頻率的降低和適中的氣體流量可以制備出sp ~ 3鍵比例高的類金剛石膜;在等離子增強化學氣相沉積技術中,對偏壓對sp ~ 3鍵比例的影響也進行了簡單分析。Comparing to the influence of the bias, the variation of the giant - magnetoresistance induced by change of temperature is smaller. it becomes important only in the situation when the variation of temperature is large
與偏壓的影響相比,溫度的改變所引起的巨磁電阻的變化相對較小,只有在溫度變化較大時才有顯著的影響。分享友人