限制電平 的英文怎麼說
中文拼音 [xiànzhìdiànpíng]
限制電平
英文
slice level- 限 : Ⅰ名詞(指定的范圍; 限度) limit; bounds Ⅱ動詞(指定范圍, 不許超過) set a limit; limit; restrict
- 制 : Ⅰ動詞1 (製造) make; manufacture 2 (擬訂; 規定) draw up; establish 3 (用強力約束; 限定; 管束...
- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 平 : Ⅰ形容詞1 (沒有高低凹凸 不頃斜) flat; level; even; smooth 2 (高度相同; 不相上下) on the same l...
- 限制 : place [impose] restrictions on [to]; astrict; restrict; limit; confine; shut down on [upon]: 限制...
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This dissipation process limits the maximum surface change density on a planar surface to 30μc/.
這種耗散作用限制著物體平面的最大表面電荷密度為30c。The shadow mask is the critical component of the colour picture tube and the important component for the choice of colour, its function concentrates on the limitation of electronics bound diameter and the screening direction, the electronics bound which is sent by the electronics gun goes scanning, during the scanning process, we should guarantee every bound gathering into the small holes situated on the screen, then these bounds will point to the regularized position through the small holes on the flat mask, and then three basic colours will be produced, at the same time, those useless electronics will be blocked by the mask board
平板蔭罩是彩色顯像管的關鍵部件之一,是一個重要選色元件,其作用是限制電子束直徑和上屏方向,由電子槍發射的電子束在偏轉磁場的作用下進行掃描,掃描過程中必須使每個電子束只能射中熒光屏上的為該束指定的那些小孔上會聚,並通過蔭罩上諸多的小孔分別打到各自對應的熒光質點上,發出三種基色(紅,綠,藍) ,而無用的電子則被蔭罩板截獲。Secondly, compared with some other kinds of comparator structure and based on the preamplifier - latch fast - compare theory, a novel topology of cmos preamplifier latch comparator circuit is presented. considering trade - off between kickback noise and power dissipation, reference resistance value is optimized. according to the encode demands of different stage resolution, clock - control encode circuit is designed
其後,在具體的子adc設計中,對比各比較器類型的優缺點,並基於預放大鎖存快速比較理論,提出一種新型高速低功耗預放大鎖存比較器電路拓撲;根據adc系統所允許的參考電壓最大波動限制,在回饋噪聲對輸入參考電平的影響和功耗之間折衷,確定優化的參考電阻串阻值;根據不同級精度的編碼要求,設計出時鐘控制編碼電路。But in the field of sea transportation, asp is delayed because of the limit of bandwith of satellite communications. the bulky edis data cannot be transmitted through satellite and the pelagic ships cannot take the service from internet through satellite based on the cost of satellite transmission
但是對于海事領域,由於衛星鏈路的帶寬限制,使得asp信息平臺在船舶和陸地之間不可能傳輸較大的電子海圖數據;同時從費用方面考慮,船舶也不可能通過衛星鏈路訪問internet 。So. the low speed jitter problem has been the central task in the servo system research. the improvement of the working precision at low speed is hindered by the disturbances of the friction moment and the motor torque wave, while the decrease of the disturbances is restricted by the making technology. for the reason, the research of the low speed properties and corresponding compensation methods means a lot for the optoelectronic tracking system
轉臺伺服系統低速工作精度主要受到以摩擦力矩、電機波動力矩為主的擾動力矩的影響,而摩擦力矩、電機波動力矩的減小又受到轉臺製造工藝水平的限制,所以,轉臺伺服系統的低速特性以及抖動補償研究,對結構簡單、性能優良的精密光電跟蹤系統的研製,具有相當重要的意義。Abstract : a vertical sandwich deep trench with a field limiting ring is proposed to improve the breakdown voltage of power devices and high voltage devices. simulation result shows that nearly 100 breakdown voltage of the plane junction can be realized
文摘:提出一種二氧化硅/多晶硅/二氧化硅夾心深槽場限制環新結構來提高晶體管的擊穿電壓.模擬結果顯示,該結構可以使射頻功率雙極性晶體管的擊穿電壓幾乎100達到平行平面結的理想值Model ftjr600 - 800 microcomputer control high - speed continuous - rolled vest bag making machine has such functions as photoelectric automatic tracking microcomputer length setting, high limit stopping, automatic counting, automatic alarm on reaching the set value, high compensation accuracy with such characteristics as neat bags, little error and high automatic of whole machine, so it is a kind of ideal equipment for producing blank bags, colorful bags, flat bags and vest bags etc and other various plastic soft packing bags
模型ftjr600 - 800微機控制高速連續軋制背心袋製作機等功能的光電自動跟蹤,微電腦定長,高限制停車,自動計數,自動報警到達設定值,高補償精度等特點整齊袋,誤差小,高自動化整機,所以它是一種理想的生產設備空白袋,袋豐富多彩,平面袋背心袋等,以及其他各種塑料軟包裝袋。Furthermore, the growth and the study of self - organized quantum dots structures become more and more important recently, and the application of self - organization technique become wider and wider in this thesis, we address the theory of film growth and the growth technique firstly more, the ways and characteristics of surface detection are prescribed we mainly report the growth process, results and discuss of self - organized quantum dots structures in the a12o3 substrates by s - k mode using ecr - mocvd, in the espd - u device the growth art of ain epilayer which is the preliminary foundation of self - organized gan / ain quantum dots structures, including the substrate cleaning, nitridation, the growth of buffer and the growth of gan and ain epilayer, is discussed we deliberately compare the test result of rheed xrd and afm and achieved the optimalized condition of ain at last we have successfully realized the growth of ain which is much smooth and better crystal quality moreover, we grow the self - organized gan / ain quantum dots structure in s - k mode because the limits of the heater temperature, we can not grow the atom - smooth epilayer of ain until now so we could not grow better quantum dots which have small diameter and big density but the self - organized quantum dots structures with better quality will be realized successfully if the substrate temperature is increased the thesis study belong to my tutor subject of national nature science foundation ( 69976008 )
本論文主要論述了在espd - u裝置上,採用電子迴旋共振等離子體增強mocvd ( ecr - pamocvd )方法,在藍寶石襯底上通過s - k模式自組裝生長gan aln量子點結構的生長工藝、結果及討論。而重點分析了自組裝生長量子點之前的aln外延層生長工藝,包括襯底清洗、氮化、緩沖層的生長和gan 、 aln外延層的生長;通過高能電子衍射、 x射線衍射和原子力顯微鏡測試,並且對這些測試結果進行了詳細的比較研究,得出了較優化的工藝條件,生長出了晶質較好、表面較平整的aln外延層;進而採用s - k模式自組裝生長了gan aln量子點結構。由於實驗裝置加熱爐溫度的限制,我們沒有能夠生長出原子級平滑的aln外延層表面,因而沒能夠生長出密度比較大和直徑比較小的量子點。But due to the difficulties of the theoretical calculation and the limitation of the technique of image display, only some two - dimensional graphs of electromagnetic field of a planar set of point charges or symmetrically and uniformly charged bodies, which ignores the boundary effect, are introduced in the present electromagnetics teaching materials, which brings much incovenience for the acquaintance of the electrostatic field
然而,由於受理論計算和圖象顯示技術等因素的限制,目前的電磁學教材中,通常只能給出平面分佈的點電荷系或具有較強對稱性、忽略邊界效應的帶電體的電力線和等勢線的二維平面圖,這給靜電場分佈的感性認識帶來了一定不便。This is because the origin of the virial theorem value of 2 lies in the inverse square coulomb force being the only interaction seen by the electron and impurity ion
其原因是在理想的一維、二維、三維結構中,對于雜質體系只存在電子和施主離子間的平方反比庫侖力,而沒有量子阱寬的限制。It is indicated that, when a two - speed motor is used for driving oil transfer pump, the motor with the characteristic of torque reduction on square rotary speed should be chosen ; the working economy of the variable speed pump is restricted by the characteristic curves of pipeline resistance, and its speed control range is restricted by the pipeline resistance characteristic curve, the pressure head needed by the system and the working characteristic of the pump ; when several pumps work in parallel, the pump with better performance should be changed into speed - variable pump
指出雙速電動機用於輸油泵的調速時,應選用轉矩按轉速平方降低特性的電動機;調速泵的運行經濟性受到管路阻力特性曲線的限制,其調速范圍受到管路阻力特性曲線、系統所需揚程和泵運行特性的限制;在母管制系統中把部分定速泵改為調速泵時,應將性能較高的定速泵改為調速泵。In 1982 professor tsui discovered the remarkable fractional quantum hall effect in his experimental studies of electrons in high - mobility semiconductor heterostructures placed in strong magnetic fields at very low temperatures. professor tsui and his co - workers found unanticipated plateaus in the hall conductivity, characterized by fractional quantum numbers, in contrast to the integral quantum hall effect discovered two years earlier
崔琦教授於一九八二年發現限制在平面上運動的電子系統在強磁場、極低溫的條件下,形成一種奇異的量子液體,它的準粒子元激發具有分數電荷,遂呈現所謂分數量子霍爾效應。Anti - jamming capability of interferometer direction finder with multi channel receiver is analyzed and studied. measures for control co - channel jamming are given : reduce intererence strength by antenna character, change gate level of receiver, alter df bandwidth, make use of the pause function of display and a type of filter
提出了抗同波干擾的若干措施:利用天線的方向圖抑制干擾信號、改變接收信號的門限電平、改變測向帶寬、利用屏幕顯示的暫存功能、倒譜同態濾波方法等。Hktc ' s local telephone charges are regulated by a price - capping mechanism which limits any annual increase to four per cent below the prevailing rate of inflation
香港電話公司的本地電話收費,受到收費增幅上限機制的規管。這個機制把該公司的每年收費增幅,限制至當時通脹率減4個百分點的水平。Combining the above signal model and the conventional lcmv method at element level we present a lcmv method at subarray level. in all kinds of jammer scenarios, the method can suppress jammers well, but the disadvantage is that the sll ( sidelobe level ) of adaptive patterns is much higher
將上述提出的信號模型與常規線性約束最小方差( lcmv )方法相結合得到子陣級lcmv方法,在各種干擾情況下該方法都可以實現對干擾的很好抑制,但其局限性是自適應方向圖的旁瓣電平較高。With the improvement of technology of digital circuit, making use of digital circuit to produce noise has become reality. for example, m sequence has been maken as mask jamming source, but its applications are limited because of its linearity and finite amount
隨著數字電路技術水平的提高,利用數字電路來產生噪聲已成為現實。例如, m序列已經作為雷達干擾信號的噪聲源,但它的應用受到其線性性和有限數量的限制。However flux leakage is really exist, calculation through formular analytic method has more error, so electromagnetic field analysis is made by using finite element method ( fem ) in ansys7. 1 / multiphysics and ansys / emag programs. typical quantities of interest in a magnetic analysis are available such as magnetic flux density, magnetic field intensity, magnetic forces, power loss and flux leakage in the system of magnetic levitation. then gain the current in the coil which control levitation gap when the stage is stable
由於存在漏磁,用公式的解析法計算有很大的誤差,因此本文採用有限元法( fem )來計算磁懸浮系統磁場分佈,從而計算磁力,通過用ansys7 . 1軟體進行有限元電磁場分析計算,得到平臺穩定懸浮時電磁線圈所需電流、懸浮氣隙等控制參數,由於設計的磁懸浮系統為非軸對稱結構,採用2d磁場分析有一定的誤差,而採用3d電磁場分析更接近實際。According to the characteristic of nine - area diagram of substation vol / var coordinated control, this system gives the defination of fuzzy sets and the degree of membership of input / output variables, and designs corresponding control rules. the results of simulation demonstrate the system can satisfy the constrains of the day - adjusting times of the switching of on - load transformer and paralleled compensation capacitors, and ensure voltage quality, reactive power basical balance. considering the var requirement in different load time period and the control demand in load saltation, a improved control scheme is provided. the results of simulation show the improved scheme can meet the demand of vol / var in different load time period, protect the wrong operation when either voltage or reactive power appears saltation, and decrease the times of regulation of the switching of on - load transformer and paralleled compensation capacitors finally, a background software module of substation vol / var coordinated control is designed, based on the supervisory control and data acquisition system of substation
模擬結果證明該系統能在各種負荷條件下確保電壓合格和無功基本平衡,且能滿足變電站對有載調壓變壓器分接頭日調節次數和並聯補償電容器組的日投切次數的限制。通過考慮不同負荷時段對無功功率的需求和負荷突變情況下的控制要求,對上述模糊控制策略進行了改進,模擬結果證明改進后的控制策略能滿足不同負荷時段對電壓和無功的要求、抑制電壓或無功突變情況下的誤動作,且有效地減少了有載調壓變壓器分接頭和並聯補償電容器組的調節次數。最後基於變電站scada系統設計了一后臺電壓無功綜合控制軟體模塊。For radar is a complicated electronic system, the implementation of uwb will be subject to the level of electronic hardware. the large instantaneous bandwidth of uwb return causes great trouble to receiver
由於雷達是綜合性很強的電子系統,超寬帶雷達的具體實現要受到實際硬體水平的限制,其中視頻回波信號瞬時大帶寬給接收機數據採集造成了很大的困難。The rbf network has a better performance, and better forecasting accuracy. then mathematical model of substation voltage / var control is constructed, the squares minimization of voltage differences as target, also considering requirement of voltage and power balance, taking it into consideration that the magnitude constraint of transformer ratio and compensating capacitor, also that constraint of operation times of one day transformer tap and capacitor switch
因此提高了學習性能,具有較好的預測精度。然後,建立變電站電壓無功控制的數學模型,考慮電壓的調壓要求和無功功率平衡,計及變壓器變比和並聯補償電容的上下限約束,變壓器分接頭和電容器允許的日調節次數的限制,以電壓偏差的平方和最小為目標函數。分享友人