電中性區 的英文怎麼說
中文拼音 [diànzhōngxìngqū]
電中性區
英文
charge neutrality-
The composites not only show excellent photo - responsive properties in the visible and near - ir region ( 450 ~ 850 nm ), but also show complementary and synergetic enhancement effects in photosensitivity in the visible and near - ir region. the reasons for the enhanced photoconductive properties and new effects are explained in terms of the partial and directional charge transfer from phthalocyanine to azo compound in these azo / tiopc composites. 2
研究發現這兩種復合材料體系在可見光區和近紅外光區（ 450 850nm ）均有光譜響應，光譜響應范圍得到了拓寬，並在該波長范圍內都有優良的光電導性能，呈現出明顯的光電導性能協同增強和互補效應，該復合材料體系中酞菁向偶氮發生的部分定向的電荷轉移是光電導性能協同增強和互補效應產生的物理起因。Linearized the expression vector ppic9k - p including the truncated mutant pokeweed antiviral protein ( pap ) gene by restriction endonuclease sal i and transformed it electrically into pichia pastoris gs115. mut + recombinants were selected by pcr and high yield mut + recombinant was picked out by double film immunoblotting
本研究將含有n末端信號肽和c末端毒性區缺失的pap基因的表達載體ppic9k - p用sali酶切線性化后，通過電擊轉化整合p . pastorisgs115菌株細胞中。The degradation of the electrical characteristics in sic pn junctions irradiated by neutron is attributed to the recombination centers and the electric field effect on the thermal emission of traps within the depletion region. the relationship of the ideality factor to the applied voltage is theoretically studied
提出了中子輻照下sicpn結電特性退化的新的理論， pn結耗盡區中的輻照陷階在耗盡區電場的作用下熱發射效應得到加強，從而導致pn結正偏和反偏時的復合電流和產生電流的改變。The problem about neutral - point - grounding mode is an all - around technical problem which associated with not only power system reliability ， insulation coordination ， electromagnetic interference ， but assault safety 。 in china ， the neutral grounding modes of the 10kv net involved of none grounding, grounding by arc suppressing coils, resistance grounding or reactance grounding in the past 。 with the development of civic power network ， low resistance grounding mode was used to restrain the over voltage, particularly in guangzhou, shanghai ， beijing ， and zhuhai etc. it was reported that the over - voltage level of low resistance grounding mode is lower than that of arc suppressing coil mode, but the operation carried out the other way 。 at substations in guangzhou and shanghai it was found that the low resistance grounding mode is successful 。 but in some areas ， such as zhuhai ， substations grounding with low resistance revealed some problems ， including power supply reliability rapidly dropping ， transmitting line often tripping ； and person safety being threatened 。 so interiorly the grounding mode selection of the 10kv network was disputed, which mainly focused on the fault form of 10kv net grounding, the apply area of suppressing arcing coil grounding mode, power supply reliability level of the two modes, person safety, communication interfere and the workload of maintenance
爭議點主要是在10kv電網接地故障的形式、消弧線圈接地的應用范圍、兩種運行方式供電可靠性的高低、人身安全、通訊干擾和運行維護工作量等諸多方面。 11 17本論文就是針對以電纜為主的城區10kv電網中性點接地方式的選擇問題進行研究。論文首先對10kv電網的中性點運行各種方式進行分析，比較各方式的特點，然後以重慶儲奇門變電站10kv電網的實際參數來建立數值計算模型，在考慮了電網接地電容電流變化、中性點電阻取值大小、接地點接地電阻值變化等多種影響因素的情況下，對中性點經消弧線圈接地和經小電阻接地方式下電網的過電壓水平和接地點短路電流大小進行了數值計算，其計算結果與電科院所作現場試驗進行了比較。And the results of calculation and numerical simulation indicate, without increasing the intrinsic collector - junction area of power devices, collector - combed structure helps to raise the intrinsic heat - dissipating area and base ' s perimeter, improve heat - dissipating method of each cell of the chip, enhance the distribution uniformity of junction temperature and current of each cell of the chip, reduce the thermal resistance and raise the dissipation power pd and output power p0, fairly well relax the contradiction among frequency, out - put power and dissipation power of the devices, and further improve the devices " property against second breakdown
而計算分析和二維數值模擬分析結果表明：梳狀集電結（基區）結構在不增加器件本徵集電結面積的條件下，增大了器件的本徵散熱面積和基區周長，改進了每個子器件單元內的散熱方式，提高了單元內結溫和電流分佈的均勻性，降低了器件的熱阻，增大了器件的耗散功率和輸出功率，較好地緩解了目前傳統結構中頻率與功率、功耗的矛盾，並有利於改善器件抗二次擊穿的性能。A method is proposed to construct a localized active functional space from the density matrix of a large system. the large system is partitioned into central and surrounding areas. the active functional space is mainly localized on the central area. it contains all basis functions centered at the central area and all the orbitals which consist of the basis functions localized in the surrounding area and interact with the basis functions in the central area to a certain extent. an integral number of electrons are involved in the localized active functional space which can be considered as a relatively independent subsystem in the large system and for which formally isolated quantum chemical calculations can be performed. the related program has been coded and is checked through calculating the number of 4
報道了從大體系的密度矩陣出發構造定域于指定局部的活性泛函空間的方法和程序。將大體系劃分為中心區和環境區，活性泛函空間包含中心區的基函數及與其有相互作用的環境區軌道，容納整數個電子，構成大體系的一個相對獨立的子體系，可以在其中進行獨立的量子化學計算。通過計算鑭系氯化物和水合離子的4The basic principle, main properties, typical parameters, technical characteristics and general situation of klystron are introduced. the electron beam prebunching in the modulated cavity and shift tube of relativistic klystron amplifer ( rka ) is studied analytically, a self - consistent equation of radiation generated by the prebunched electron beam in the radiation cavity is derived using the field method of particle ? wave interaction instead of the electrical circuit method, and in terms of it, the gain in the linear regime calculated, a field analysis method is proposed. the theory analysis shows that the characteristic parameters, such as resonance frequency, real part of gap - impedance, external quality fadtor in all kinds of klystron output circuits including single - beam, multi - beam, single - gap, multi - gap, single - beammulti - gap, multi - beam multi - gap klystron output circuit, can be calculated by the field analysis method
本文系統的介紹了速調管的工作原理、主要特點、發展概況、主要性能指標和技術特點，解析的研究了電子束在相對論速調管放大器的調制腔和漂移管中的預群聚;用粒子波互作用的場方法導出了在輻射腔中預群聚電子束產生輻射的自洽方程，同時對線性區的增益進行了計算。理論分析表明，場分析法可用於計算單注單間隙、多注多間隙、單注多間隙和多注多間隙速調管輸出迴路的諧振頻率、間隙阻抗實部和外觀品質因數等特性參數。From the perspective of minimum transmission losses, an instantaneous reactive power theory for systems with any number of phases and with or without neutral line is developed. under the new definition, each quantity has its own physical meaning, and the zero sequence current can be decomposed into active and reactive components. furthermore, a generalized compensation method for zero sequence current is developed
從輸電損耗最小的角度出發，提出了任意相無中性線或有中性線系統的瞬時無功功率理論，在新的理論下，每個量都有清晰的物理意義，且能分解出零序電流的有功分量和無功分量，並給出了通用的零序電流補償方法，揭示了瞬時無功功率理論與傳統平均意義下的無功功率理論的聯系及本質區別，從而為研究hvdc - vsc及各種facts裝置的無功功率控制奠定了理論基礎。Depending on how the ground surface is denuded, the feature of the current crustal stress field and rock stress environment can be calculated analyzing the result in this paper : by analyzing the recovering feature of the elastic deformation of the rockmass in unload - stage under various pressures, it has been found there is close relationship between the recovering degree of the elastic deformation of the rockmass and the unloading degree of the pressure the direction of the major principal stress in the crustal stress field is not consistent with the direction of the crushing stress regional tectonics borne during the last tectonic movement. the evolving degree of the regional geomorphology evidently affects the current crustal stress field, which changes from the self - weight stress field to the horizontal stress field, with the changing of the eroding degree of the regional geomorphology ranging from valley area to hilly country to flat country. in valley area, where there is two stress belts, the bankslope s tress belt and the self - weight stress belt within the mountain. the direction of the major principal stress is nearly parallel to the ground surface and inclines towards the valley in the bankslope stress belt. it is nearly vertical in the self - weight stress belt
通過本文的研究成果，根據區域性地貌的演化特徵，我們可以大致地對現今地應力場進行判斷：在分級卸荷條件下，巖體中彈性變形的恢復具有明顯的規律性，這種規律對于研究地應力場的演變是有幫助的；地應力場中最大主應力方向與區域構造形跡在最近的構造運動中所受區域性擠壓應力的方向無明顯的對應性；區域性地貌形態的演化程度對現今地應力場的特徵具明顯的影響，隨著區域性地貌侵蝕程度由峽谷區、丘陵區、平原區的變化，現今地應力場特徵由自重應力場、水平應力場為主含少量自重應力場特徵向水平應力場的規律變化；在峽谷區，山體中具有兩個應力帶：自重應力帶和卸荷應力帶，最大主應力方向在卸荷應力帶中近平行於坡面並傾向于河谷、在自重應力帶中近於直立；根據原始地面遭剝蝕的程度，可以大致地估算最大主應力和中間主應力的量值和方向；在丘陵區和平原區，最大主應力的方向近於水平，並與附近區域性侵蝕盆地和河流的展布方向基本平行，根據原始地面遭剝蝕的程度，可以大致估算其最大主應力的量值；根據區域性地貌形態的特徵來分析工程區的現今地應力場特徵，並進而大致了解巖石的應力環境，這種分析方法得出的結論與許多實際的地應力測試成果基本一致，對于大型水電工程地下廠房和壓力隧洞的設計是有所幫助的。There had grown a lots of dislocation interfaces in the emeishan volcanic of permian period in the dam area of the jinsha river xiluodu hydroelectric power station being planned to build. the dislocation interfaces have great unslighting influence to the engineering stability of the dam
擬建的金沙江溪洛渡水電站壩區二疊系峨眉山玄武巖中發育有一定數量和規模的層間和層內錯動帶，它們對大壩的工程穩定性有著不可忽視的影響。Carrier will be capture by trap, the number of electric carrier will decrease. the trap hold back carrier to move from crystal to other crystal. it influences the electrical properties of tft
陷阱在浮獲載流子之前是電中性的，但是在俘獲載流子之後就帶電了，在其周圍形成一個多子勢區，阻擋載流子從一個晶粒向另一個晶粒運動，導致載流子遷移率下降，導致tft的電學性能下降。So in one hand it requires the wafer ' s diameter to be more large in order to enhance the productivity, and on the other hand it puts forward more strict requirement about the crystal perfection and electricity character. especially the electronic character and the equality of micro - area in the crystal wafer has become the key factor to determine whether the device can be made on it or not. so the resistivity measurement of micro - area become one most important procedure in the chip machining. to ensure the produce quality of chip and the perfect performance of final production, the four - probe testing technology need to be deeply studied
圖形日益微細化，電路尺寸不斷縮小，目前ic製造以8英寸、 0 . 13 m為主，預計在2007年左右將以12英寸、 65nm為主，這一方面要求圓片直徑不斷增大以提高生產率，另一方面對晶體的完美性、機械及電特性也提出了更為嚴格的要求。特別是微區的電學特性及其均勻性已經成為決定將來器件性能優劣的關鍵因素。因此，微區電阻率的測試成為晶元加工之中的重要工序。In simulations, all important phenomena, such as non - neutral sheath widening near cathode, cathode electron emitting, current channel migrating to the load side of the plasma, ion accelerating toward cathode and magnetic insulation of cathode emitting electrons etc, have been observed and depict the internal physics of this device. also presented is the influence of cathode emitted electrons on phenomena in the conduction processes of pegs. the simulation results show, without cathode emitted electrons, rapid magnetic field penetration takes place only in region near the cathode, with cathode emitted electrons, magnetic field penetration takes place in all plasma region
診斷發現了陰極表面非中性鞘層的形成、陰極電子發射、電流通道的漂移、等離子體離子加速以及陰極電子磁隔離等物理現象，揭示了這一斷路器件的物理機制；分析了陰極電子對peos導通過程中的物理現象的影響，模擬結果顯示：忽略陰極電子作用，磁場滲透現象主要出現在陰極表面區域，考慮陰極電子作用，磁場滲透現象出現在整個等離子體區域。Choosing hanzhong region as investigating region, the species of acridoidae as object, by the means of systematic research, location research, seasonal research and full - scale research, the student studied the biodiversity of acridoidae in hanzhong according to the results of analysis and clustering by use of software tools such as excel and spss on the biodiversity indexes including species richness index ( ds ), shannon - wiener index ( h " ), simpson index ( a. ) and pie index, and pielou index ( e )
本研究以漢中地區為研究范圍，以蝗總科acridoidae昆蟲對象，通過系統調查、定點調查、季節調查和全面普查等為研究手段，應用excel電子表格和spss等工具軟體對調查數據進行聚類和分析，選擇物種豐富度指數、 shannon ? wiener信息多樣性指數（ h 』 ） 、 simpson優勢度指數（ ） 、 pielou均勻度指數（ e ） 、種間相遇機率（ pie ）和物種多度等多樣性研究指標研究了漢中地區蝗總科生物多樣性。Entitled exploring online brand choice at sku level : the effects of internet - specific attributes, yanan wangs thesis is a highly creative analysis of the mode of consumer behavior in e - tailing activities. her work is based on sales data generated by www. eguo. com, the most successful online supermarket in beijing. yanan wangs thesis instructors were prof. chan tsang - sing, associate vice - president and chair professor of marketing of lingnan and prof. cui geng, head of lingnans department of marketing and international business
王亞男所發表的論文極具創意，題為試探網上消費者單品sku水平的品牌選擇問題：論網際網路特有屬性的功效exploring online brand choice at the sku level : the effects of internet - specific attributes ，以北京最成功的網上超市www . eguo . com的銷售資料為基本，分析消費者在電子銷售e - tailing活動中的消費模式，是目前中國區包括香港就電子銷售e - tailing所作的首項研究論文導師為嶺大協理副校長暨市場學講座教授Because of the great potential of sic mosfets and circuits, in this paper, the characteristics of 6h - sic pmosfets are studied systematically, emphasizing on the effects of interface state and s / d series resistance on sic pmosfets firstly, the crystal structure of silicon carbide, the phenomena of incomplete ionization of the impurity and the fitting formula of hole mobility are presented. the characterization in space - charge region of sic pmos structure is analyzed by solving one dimension poisson equation
研究了sic的晶體結構，分析了sic中雜質的不完全離化現象以及sic中空穴遷移率的擬和公式；用解一維poisson方程的方法分析了sicpmos空間電荷區的電特性；本論文重點分析了界面態分佈和源漏串聯電阻對sicpmos器件特性的影響。Especially, the ionospheric electric field in hainan was studied according to the ionospheric plasma drift velocity by removing the neutral wind effect
特別是採用扣除中性風的方法，研究了海南地區電場的變化特性，並對海南地區的漂移變化因素進行了分析。Bits can be represented by magnetic regions on disks, voltages in circuitry, or graphite marks made by a pencil on paper
磁片中的磁性區域、電路中的電位差或是鉛筆在紙上畫出的記號都可以用來代表位元。From the scanning electron microscope ( sem ) images, the higher the heat treatment temperature is, the larger the grain size is. the magnetization of samples treated at 1273k is larger than that of samples treated at 1073k ; 3. with the increasing of nife _ ( 2 ) o _ ( 4 ) contents, the resistivity of composite samples nd _ ( 0. 67 ) sr _ ( 0. 33 ) mno _ ( 3 ) / nife _ ( 2 ) o _ ( 4 ) is 1073k
值得注意的是，在這一溫區中，這種復合樣品的磁電阻是負的，即給樣品加磁場后，樣品的電阻率反而增大，與純nd067sro33mno3樣品的磁電阻性能恰好相反，其機制有待進一步研究; 4 .隨著s :含量的減小， （ ndl一srxmno3 ） 。Xinqiao 1 ( superscript # ) landslide locates at left bank of the middle of the reservoir of niuniuba hydroelectric station on meigu river, owing to the huge volume, the stability of the landslide is very important to run the reservoir safety
摘要新橋1 （上標# ）滑坡體位於美姑河擬建某水電站庫區中部左岸，由於方量大，所以該滑坡的穩定性對水庫的安全運行有直接影響。分享友人