正向電導 的英文怎麼說
中文拼音 [zhēngxiàngdiàndǎo]
正向電導
英文
forward conductance-
Schottky barrier diode is a kind of majority carrier device, using the contact barrier formed between metal and semiconductor to work. it has the advantages of low turn - on voltage and high response frequency, compared with pn junction diodes
肖特基二極體是利用金屬與半導體之間接觸勢壘進行工作的一種多數載流子器件,與普通的pn結二極體相比,它具有正向導通電壓低,響應速度快等優良特性。The second, at the high frequency primary coil, when switch turn on with control signal ( the spwm pulse is modulated ), in the positive or negative semi - period of low frequency modulation signal, transformer coil with same direction voltage. the magnetic flux of transformer core will increase step by step. at the end, it leads to magnetic flux saturation
二、在高頻變壓器原邊,當開關管接收控制信號脈沖列(經調制的spwm波列)導通時,在低頻調制信號的正半周或負半周內,施加在變壓器繞組上的是同一方向的電壓,變壓器磁芯中的磁通可能將級進地逐漸增加,導致磁芯飽和,造成磁偏或單向磁化,導致低頻電信號放大失真或由於很大的磁化電流而無法正常工作。The most achievement is that we firstly obtain the analytic accurate solution of the modal fields of the waveguide structure and find some available character : ( 1 ) the different uniaxial crystal materials have the different propagation properties ; ( 2 ) when the optical axis of the crystal is on the plane that is made up of the normal direction of the waveguide plane and the propagation, there are te mode and tm mode in this special waveguide, but the principal mode is different of the character of the uniaxial crystal, the principal mode is the principal mode of te mode for the negative uniaxial crystal, but the one of tm mode for the positive uniaxial crystal ; ( 3 ) when the crystal optical - axis parallel to the waveguide plane, for the positive uniaxial crystal material, the principal mode of the waveguide is a te wave, which can be excited by the light at any frequency ; when the light frequency satisfies a single mode propagation condition, there will be only the principal mode propagating in the waveguide, otherwise some of the higher order modes can be excited, which are neither te modes, nor tm modes, but the hybrid guided modes
本文就是在此背景下,利用金屬波導和單軸晶體的一些特性,結合麥克斯韋方程組和波導的邊界條件,從三種不同的情況研究了光在對稱平面單軸晶體金屬波導(波導層是單軸晶體,兩個波導界面均為金屬)內的傳輸特性,其主要貢獻為,首次解析地得到了這種波導結構下模式場的精確解,並發現了一些有用的特性: ( 1 )模式場的性質因單軸晶體的性質不同而異; ( 2 )當單軸晶體光軸位於波導界面法方向與傳輸方向構成的平面內時,波導中傳輸te波和tm波,只不過其主模因單軸晶體的性質不同而異,當波導層介質為負單軸晶體時,波導主模是te波主模,而波導層介質為正單軸晶體時波導主模是tm波主模。 ( 3 )當單軸晶體光軸位於波導面內時,對于正單軸晶體,波導的主模是橫電波te _ 0模,任何頻率的光波均可激勵該模式;當光波波長滿足一定條件時,波導內傳輸單模,否則,將激勵起高階模式,高階模即匪te波,也匪tm波,而是兩者耦合而成的混合模。Neither the bank, its associates, nor any of their directors, officers or employees, shall be liable to the customer for any expenses, loss or damage suffered by or occasioned to the customer by reason of any action taken or omitted to be taken by any one or all of the bank, its associates, their directors, officers, employees or agents pursuant to these conditions or in connection therewith other than as a result of the fraud, wilful default or negligence of the bank, its associates, their directors, officers, employees or agents ; the bank s failure in good faith to honour any stop - payment instructions given by the customer ; the presentation to the bank of any cheque or other payment order which is post - dated ; the bank failing to honour any draft drawn on it by the customer, but the bank shall immediately return such draft to the customer through the normal channels giving the reason for the dishonour ; any loss, damage, destruction or misdelivery of or to the securities howsoever caused unless the same shall result from the negligence of, or theft by, the bank or its associates or any of their directors, officers or employees, in which event the extent of the liability of the bank shall be limited to the market value of such securities at the date of discovery of the loss and even if the bank has been advised of the possibility of such loss or damage ; unauthorised use or forging of any authorised signature as a result of the negligence, wilful default or fraud of the customer ; subject to condition 5. 5, any act or omission, or insolvency of, any person not associated with the bank including, without limitation, a third party nominee or depositary ; viii the collection or deposit or crediting to the custodian accounts of invalid, fraudulent or forged securities or any entry in the custodian accounts which may be made in connection therewith ; any malfunction of, or error in the transmission of information caused by, any electrical or mechanical machine or system or any interception of communication facilities, abnormal operating conditions, labour difficulties, acts of god, or any similar or dissimilar causes beyond the reasonable control of the bank and notwithstanding paragraph, the error, failure, negligence, act or omission of any other person, system, institution or payment infrastructure
本行其聯系人士其各董事高級人員或雇員均毋須向客戶因以下理由而使客戶蒙受或產生之任何開支損失或虧損負責: i本行其聯系人士其董事高級人員雇員或代理人根據此等條件採取或遺漏採取有關之行動,但由於本行其聯系人士其董事高級人員雇員或代理人之欺詐行為故意失責或疏忽所造成者除外ii本行本真誠地未能依約替客戶執行止付指示iii向本行提交任何遠期支票或其他付款指示iv本行未能兌現由客戶開出之匯票,但本行將立即透過正常渠道將該匯票退回客戶,並解釋拒付之理由v無論如何導致之任何證券之損失損毀毀壞或錯誤交付除非上述各項乃因本行或其聯系人士或其任何董事高級人員或雇員之疏忽或盜竊所引致,而在該等情況下,本行的責任將只限於在發現損失當日該等證券之市值,以及即使本行已獲知該等賠償之可能性vi因客戶之疏忽故意失責或欺詐行為而導致的任何偽造授權簽名或不獲授權使用該簽名vii在第5 . 5 a條之規限下,與本行無關者之任何行動或遺漏或無償債能力包括但不限於第三者代名人或寄存處viii代收或存入或貸存於保管人賬戶的無效偽造或假冒證券或在保管人賬戶記入可能與此有關之賬項ix任何電子機械或系統失靈或因該等機件或系統產生的資料傳送錯誤或任何通訊設施之終斷不正常操作情況勞工問題天災或非本行所能合理控制之任何類似或非類似原因及x盡管有第ix項,任何其他人系統機構或付款設施的錯誤故障疏忽行動或遺漏。2 ) the high school students should be guided to have a correct understanding of the tv commercials about consuming expensive commodities. so they could be a rational consumer
我們不僅要引導中學生正確理解和對待電視文化,趨利避害,還要引導他們包容差異,培養一種縱向趨同、橫向開拓的遠景思維品質。Inaddition to meet the needs of taiwan b2c market, overseas home appliance department of teco ha division constantly develops the overseas b2b market, such as oem, odm and obm business model. this way, teco will be better prepared to confront emerging global competition and new business opportunities by becoming a wrold - class leading brand. moreover, teco will reserch and develop the digitallized and wireless products
東元電機股份有限公司除了致力於滿足國內b2c消費市場的需求,海外事業推廣部門( overseashomeappliancedepartment )更不斷積極拓展b2b市場,舉凡oem 、 odm 、以及obm經營模式,東元電機股份有限公司正朝向世界級領導品牌目標邁進,同時,產品研發將朝數字化、網路化的技術發展,我們期許在未來除了是家電產品供貨商外,也能夠成為家庭網路系統承包商。The questions the researcher concerned are which system will be chosen and how to obtain the good lithium ionic conductor materials, which is the basic departure of the paper. the addition of second phase in composite can change the interface structure and the conduction mechanism, improve the matrix conductivity and other function such as the sintering, crisping and so on, so the research of composites are an interesting field of the ionic conductors. the synthesis of lithium ionic conductor is often by solid state reaction, but this method needs high temperature and leads to the volatility of lithium which not only causes the drift of the compounds but gets the no well - distributed materials
研究者所關注的問題是選擇新的體系進行研究,以期得到性能更好的鋰離子導體材料,這也正是本論文的基本出發點;復合離子導體中第二相的加入改善了基質的界面結構和導電機制,不僅可以提高基質材料的電導率,還可以在一定程度上改善材料的其它性能,如燒結性能、脆性和機械強度等。因此復合材料的研究是離子導體一個有廣闊前景的發展方向;合成鋰離子導體,特別是成分復雜的體系以傳統的固相合成法為主,但這種方法需要較高的溫度,容易引起鋰的揮發,從而造成產物組成的偏移,而且不易得到顯微結構均勻的材料。In terms of the basic theory of transformers and induction machines, this paper defines the positive direction of these two kinds of machines again and deduces the new equivalent circuits of transformers and induction machines
根據變壓器和異步電機的基本原理,對這兩種電機的主要物理量的正方向重新進行了規定,並由此推導出新型等效電路。Based on the theories of hybrid / mixed finite element method, the generalized energy functional including stress, mechanical displacement, electric displacement, electric field and electric potential is used, with the electric - potential relations and the constitutive equations of piezoelectric materials constrained, hybrid energy functional including mechanical displacement, electric potential and stress is gained. moreover, splitting in - plane components and transverse components, the mixed energy functional in which mechanical displacement, transverse stresses and electric potential as basic variables is derived. with the use of surface stress parameters of sub - elements, the continuity of transverse stress at interfaces between layers is obtained
在回顧雜交混合有限元理論的基礎上,從包括位移、應力、應變、電勢、電位移、電場強度六個未知量的廣義壓電材料能量泛函出發,通過約束電場強度?電勢關系、應力與應變及電場強度的關系,得到僅包括位移、電勢、應力三個未知量的雜交變分泛函,利用一般層合板的雜交混合變分原理,分離面內分量和橫向分量,導出以位移、橫向應力、電勢為未知量的壓電層合板的修正變分泛函,作為壓電層合板的雜交元列式的理論基礎。( 2 ) using fem simulation software package, eit forward problem of 2d head model could be solved and the scalp potential could be figured out when brain conductivity varies
( 2 )應用有限單元模擬軟體實現了二維頭模型eit正向問題的求解,並可根據腦組織的不同電導率得到對應的頭皮電位分佈。Activities of bkca channels were studied at the single - channel level with inside - out patch - clamp configuration. bkca channels in neurons after reoxygenation for 6 h showed a significant increase in the unitary conductance and open probability compared with control. after reoxygenation for 24 h, both the conductance and the open probability recovered to the control level
採用膜片鉗內面向外式單通道記錄方法研究發現,復氧6小時神經元bkc :通道電導及開放概率與正常對照組相比均顯著增加,復氧24小時通道電導及開放概率恢復至正常水平。By combining the conventional log data with the data on imaging logging, core, drilling - log and production test, etc., and on the basis of carrying out various additional conduction corrections for resistivites, the fracture opening may be calculated by use of the difference between the resistivities of dual laterallog ; the fracture porosity can be estimated according to a simplified dual laterolog interpretation formula ; and the fracture permeability may be acquired in light of the experimental relation between the fracture widths and the fracture permeabilities
將常規測井資料與成像測井、巖心、錄井、試油等資料相結合,在對電阻率進行各種附加導電校正的基礎上,利用雙側向電阻的差異計算裂縫張開度,根據簡化的雙側向解釋公式計算裂縫孔隙度,根據裂縫寬度與裂縫滲透率實驗關系求解裂縫滲透率。Then with the introduction of the expression of radial electric field and azimuth magnetic field, the movement tracks of electrons in the interaction space are modified on account of the azimuth magnetic field decreasing with the decrease of the axial current
接著,引入同軸系統中徑向電場和角向磁場的表達式,並且考慮到軸向電流的逐漸減小會導致角向磁場沿軸向的變化,推出修正後的電子運動軌跡表達式。Comparing with p - n junction, sbd is a majority carrier device. it has low break - over voltage, and can be used at high frequency
與p - n結相比,它是一種多子器件,具有正向導通電壓低,使用頻率高等特點。The forward voltage drop in the on - state is only a few volts ( typically 1 to 3 v depending on the device blocking voltage rating )
在導通狀態的正向壓降很小(取決于阻斷電壓的值,一般為1 ~ 3伏) 。A new method of accurate electrical characterization of semiconductor diodes at forward bias
一種精確檢測半導體二極體正向電特性的新方法In the application of driving white led, an auto - adjustable charge pump which adjust work mode according to the forward voltage of load led and input voltage is presented. the conventional charge pump changes work mode at fixed input voltage value
在電荷泵驅動白光led的應用中,本論文研究設計了一種根據負載led正向導通壓降和輸入電壓來選擇電荷泵工作模式的電荷泵型led驅動器。There are rumors saying that wong jing didn t credit himself as the director because he was afraid that his notorious reputation would ruin the expectation of the audience as well as the box office record. . anyway, the fact now is that the real identity of the director is kept unknown to us
說王晶是導演的人,理由是王晶向以拍攝低俗笑片為主,導演一職以他掛帥恐怕會影響票房無論如何,現在電影並無列出正式的導演是誰,只在片尾告訴我們執行導演是麥詠麟而已。Secondly, the beam orbit offset effects caused by the initial beam offset and the linac components " offsets have been quantitatively studied first. as an example with the injector linac for beijing electron positron collider upgrading project ( bepcii ), the beam orbit offset caused by the above error effects have been simulated and analyzed
其次定量研究束流的初始徑向誤差和加速器部件的安裝誤差等對束流軌道偏軸的影響,並以北京正負電子對撞機二期工程( bepc )的直線加速器為例,給出了上述各種誤差導致軌道偏軸的模擬計算結果及其分析。Due to characteristics of white led such as large forward voltage and high temperature sensitivity, and necessity of uniform brightness requirement of the portable application, specially designed power management ic is needed
由於便攜式應用對白光led亮度均勻性的要求,以及白光led自身的正向導通電壓大、電學參數離散性大、容易受溫度影響等特點,需要設計專門的電源管理晶元來驅動白光led 。分享友人