導帶態 的英文怎麼說

中文拼音 [dǎodàitài]
導帶態 英文
conduction level/state
  • : 動詞1. (引導) lead; guide 2. (傳導) transmit; conduct 3. (開導) instruct; teach; give guidance to
  • : 名詞1. (形狀; 狀態) form; condition; appearance 2. [物理學] (物質結構的狀態或階段) state 3. [語言學] (一種語法范疇) voice
  1. Yet, with the development of science and technology, some problems have occurred, such as the problem of scientific morality. this problem becomes increasingly notable. the loss of scientific morality leads to environmental pollution, resource abuse, high - tech crimes, large - scale antipersonnel weapon making, as well as plagiarism

    另一方面,科學技術又是一把「雙刃劍」 ,在推動社會進步的同時,也來了一些負面效應,致科學道德問題日益突出,如生環境污染、資源濫用、高科技犯罪、研製大規模殺傷性武器、剽竊抄襲等,這些現象都屬于科學道德失范現象。
  2. The characteristics of various solid - state power - combining techniques and the principles of the waveguide - based power combining structure are compared and analyzed in detail. the power combiner is based on a double antipodal finline - to - microstrip transition structure. the proposed 2 2 combining structure is optimized by using 3 - d fields simulation tools cst

    主要內容為: 1 .研究和對比了各種固功率合成技術的特點,詳細地分析了波基空間功率合成器的工作原理,提出了一種基於雙對極鰭線-微過渡的2 2路毫米波功率合成器結構,藉助三維場模擬軟體cst對該無源網路進行了優化設計。
  3. This paper recurred to the basic theory of rough set of data mining and under the direction of the frame of intelligent decision, the main theories include i ) the different methods of data mining on the base of rough set are used to deal with typical decision system namely consistent decision system and inconsistent decision system in order to carry through data reduction and rule distilment ; ii ) in the environment of dynamic increment database, the methods of data reduction to deal with the original data and increment data are discussed in the consistent and inconsistent decision system ; iii ) the method of data mining of rough set is analysized to treat with the attributes with priority ; iv ) on the base of basic rough set theory, the data analysis methods of amalgamation of rough set theory ; v ) and also the pre - disposal method to database is analysize

    本文從系統工程進行決策分析的角度出發,藉助數據挖掘技術中粗糙集的基本理論,在智能決策框架的指下,研究了基於數據挖掘的智能決策理論及方法。主要理論包括:如何利用粗糙集對典型的決策系統即相容性決策系統和不相容性決策系統運用不同的數據挖掘方法進行有效的數據約減和規則提取;在增量動的數據庫環境下討論了在典型決策系統中對原始數據和增量數據進行數據約減的方法;分析了有優先權屬性的粗糙集數據挖掘方法;以基本粗糙集為基礎探討了粗糙集擴展模型的數據分析方法;研究了粗糙集數據預處理方法。
  4. Roll over protective structure ( rops ) is a device which installs on out of construction vehicle. the main functions are : when the vehicle rolling over. rops can prevent the vehicle from rolling over further, and reduce the possibility of rolling vehicle injures operator ; when the vehicle traveling on freezing soil. concrete and rock, it has large resist continuous impact ability ; when the vehicle overturning rops can support the whole vehicle. arrangement of falling object protective structure ( fops ) can block objects ( such as trees, rocks ) so that supply protection for operator. this problem is that research rolling over and falling objects protective structure of bulldozer by learning research condition of rops / fops and relative lay down international standard. on the base of theory analysis. detrudes counting formula of rops / fops deformation through founding mechanics analysis model of rops / fops at the stage of elasticity and plastoelastic. and finds a set of feasible nonlinear finite element analysis counting. lt calculates rops / fops plastoelastic deforma variable of 320hp bulldozer, bulldozer has been carried out by optimizing design method

    其主要功能是:當車輛滾翻時, rops能刺入未凍土壤而阻止車輛的進一步滾翻,降低滾翻的車輛對系著安全司機軋傷的可能性;保證rops在碰撞和沖擊變形不大的地面(如凍土、混疑土上、巖石)時,能具有相當大的抗連續沖擊能力;當車輛已經處于顛覆狀時,已經變形的rops應能支撐住整車。落物保護裝置(簡稱fops ) ,其構件的布置方式要能遮蔽墜落的物體(如,樹木、巖石等) ,以便對司機提供適當的保護。本課題主要通過了解國內外有關對rops fops的研究情況和有關國際標準的制定,對大型推土機傾翻和落物保護裝置進行研究,在理論分析的基礎上,通過建立rops fops的力學分析模型,推彈性、彈塑性階段rops fops變形的計算公式,建立一套可行的rops fops的非線性有限元分析計算方法。
  5. The consequence is, when the majority of structure does n ' t enter yield habitus, but the position of belly - board has been reached the ultimate habitus, it lead to material waste of the other positions, we should pay attention to the disastrous result it will bright to us

    來的後果就是當結構的大部分處于彈性狀時,箱梁腹板處由於剪力滯效應一般最先達到強度極限狀致腹板間材料的抗力沒有得到充分的使用,如不引起重視會來災難性後果。
  6. So. accompanying with the china ' s whole reform & open policy market - oriented economy practicing, weaken deformed ideoiogy educational mission ' s abnormal changement, and the direct effects are the expand instrumentalism & the lost of vaiue ration and finally cause the dissoive of life world & alienation of people ' s life. in order to lead adolescence to understand life correctly elevate spirit

    所以,伴隨中國全方位的改革開放,實行市場經濟,畸形意識形的淡出,教育使命的畸變與失真等,所來的直接結果是青少年一代工具理性的肆虐和價值理性的迷失,最終致生活世界的消解與人的生命的異化。
  7. The factors limiting the frequency band of the wide - band amplifier are introduced. through analyzing the effects of the intrinsic parameters and parasitical on the frequency characteristics, a method of improving fr of mosfet by using short channel device and making mosfet work at the saturation region through raising vgs is put forward ; the effects of different kinds of circuit configurations on the frequency characteristics and the junction voltage on the voltage pattern circuit, current pattern circuit and frequency characteristics are analyzed. according to the linear theory of transconductance which is applied in the bit circuit, the current pattern amplifier circuit, current transfer circuit and output circuit which consist of mosfet and the wide - band amplifier composed of them are put forward

    介紹了限制寬放大器頻寬度的因素,通過分析mosfet的本徵參數、寄生參數對頻率特性的影響,提出了採用短溝器件、使mosfet工作在飽和區、抬高柵源電壓等提高mosfet特徵頻率的方法;分析了不同電路組對放大器頻率特性的影響、節點電壓對電壓模電路、電流模電路頻率特性的不同影響,根據應用於雙極晶體管電路的跨線性原理,提出了採用mosfet構成的電流模放大電路、電流傳輸電路、輸出電路以及由它們所組成的寬放大器,獲得了良好的頻率響應。
  8. The result shows that the quenching inductor with wimble magnet inlaid is adaptable for this technique, and the vertical quenching machine can be used in mass production

    結果表明,錐角鑲嵌磁體的圈式感應器,其有效圈高度、錐角和內徑的合理匹配可以滿足淬硬層形的要求,採用立式淬火機床連續淬火可以大批量生產合格的半軸。
  9. In the moving that the urbanization enter the process inside, farmer to settle the door to move, not and always voluntarily of, because policy the oneness that compensate, change with environment, and the primitive society space construction breakup, personal body work attitude for edge for losing the etc, causing the this group incline toeing and bringing the some and social problem, in today changsha city farmer setting inside everyone ' s and personnel and concrete engineering technical personnel

    在城市化進程中,農民安置戶的拆遷並不總是自願的,由於政策補償的單一性和環境變遷、原有社會空間結構的瓦解、個人身份缺失等致這一群體的邊緣化傾向及來若干社會問題,在今日長沙農民安置中各方參與人員的工作度與具體工程技術人員在設計中不經認真調查簡單套用基於城市生活方式的住宅與小區指標也是造成這些問題的部分原因。
  10. At present, the most of vtr which are used in watch - control occasion for speciality are short of a uniform control - check - alarm system, which brings on the discommodiousness of operation and the user can not know the time of occurring a fault, which reduces the reliability of the watch - control system. therefor, at first, i carefully analyze the servo theory of the vtr which had been produced by chmavc with k mechanism to find out the work rule of the control signal ; second, take out some right control signal ; then for dealing with the problem of vtr in use for watch - control, i choose some right components to design the uniform control system for many special vtr with protel software. it mainly includes the following functions : operation functions of all vtr ( for example : power, play, ff, rew, stop, rec, eject, fwd, rwd, sp, lp ) was controlled by line at the same time ; in, the process of recording, when the tape walks to the end or stops by itself, the system gives an alarm and shows the number of the wrong vtr ; in the process of recording, the system gives an alarm and shows the number of the wrong vtr when the video signal from vidicon is losed ; the system controls all vtr to record on the non - working time when there is something wrong in the guarding section ; the system controls the video from vtr to switch to right monitor

    目前,用在監控場合的業務用錄像機普遍缺乏一個統一的控制及檢測報警系統,這就致了操作的不方便和出現了故障用戶不知道,降低了監控系統的可靠性,為此,我首先對華錄松下生產的k機芯的錄像機伺服原理進行仔細分析,找出各個伺服控制信號的控制變化規律;然後從中選出合適的控制信號;針對目前錄像機在實際監控使用過程中存在的問題,選用合適的元器件;運用protel繪圖軟體,設計了這個多臺業務用錄像機的統一控制系統,她主要包括以下功能:錄像機操作功能(如power play ff rew stop rec eject及正尋反尋速設定等)的統一線控控制功能;磁在記錄過程中,磁到頭和磁自己「偷停」的報警,並要能顯示出具體是哪一臺錄像機;在記錄狀下,攝像頭輸入信號丟失報警,並要能顯示出具體是哪一臺錄像機;在休息或其他不需要記錄時,一旦警戒區有情況,則控制所有機器自動進入錄像狀的功能;從錄像機輸出的監控圖像信號對監視器的切換功能。
  11. As a new high - tech guided company, zhuangda technology and industrial ( hang zhou ) co., ltd will follow the market as its orientation, r & d as its foundation, capital as its lubricant and skilled personnel as its core, with the target of establishing a high quality, high efficiency, high profit specialized industrial high - tech company, accompanied by down - to - earth working morale, young and energetic spirit for exploration, innovation and development

    作為一家新型的以高新技術為指的表面鍍膜公司,壯大材料科技(杭州)有限公司將以市場為向,以研發為基礎,以資本為紐,以人才為核心,以積極務實的度,朝氣蓬勃的面貌,開拓創新、銳意進取,打造一個高品質、高效率、高效益的專業化高科技公司。
  12. Muc is furtherly defined as intergenerational opportunity cost under sustainability context and the concept of relative value is built up to analyze its dynamic character. in the neoclassic growrh with the invariable substitution of resource for capital, the formulation of this relative value is deduced. for mpc, hotelling model is used to illuminate the relation between the change of mpc and the impossibilities of sustainable use of energy resources ; for mec, an optimal growth model with exhaustible energy resources and environment pollution is employed to calculate the optimal environment

    在可持續發展的條件下,將能源資源的邊際使用者成本進一步定義為代際機會成本,並建立相對價值的概念用於分析代際機會成本的動變化,基於一個資本與資源存在確定替代關系的新古典經濟體系推這種相對價值的表達式;在傳統的霍特林準則的基礎上,分析了邊際生產成本變化對資源可持續利用的影響;運用一個有資源與環境約束的最優增長模型,推了邊際環境成本內部化的最優環境稅,並分析了這種稅收政策在實踐中的應用。
  13. Some results are interesting, for example, in our calculation, there are no reconstruction in the cleaned pbte > pbse > pbs ( 001 ) surface. but there are different rumple occurs. unlike the iii - v and ii - vi semiconductors, there are no surface states in the fundamental gaps

    在表面電子結構特徵方面,與111一v族和n一vl族化合物不同,基本隙中不引入表面,而在頂和價底附近以及更深能級中出現表面或表面共振等。
  14. And beginning with a perturbed nls equation, using a multi - scales perturbation expansion, we get the zero order and the first order equations, discuss the eigenstates of the operator in the equations, induct relevant " derivative states ", form the completeness of the bounded eigenstates of the associated operator in li space, and expand the corresponding parameters in the closure, get a series evolution equations of the coefficients in the expanded formulas, find the first order approximate solution by researching the evolution equations. this paper also gives the basis of this method - the completeness we have formed and the singular perturbation technique

    ) dinser方程的求解問題,討論了自伴運算元的本徵函數的正交性和完備性,介紹了尋求微分方程的近似解常用的攝動方法,並從有某種擾動項的nls方程出發,利用多重尺度的攝動方法得到了方程的零級近似方程和一級近似方程,通過對近似方程中運算元的特徵的討論,引入適當的「」 ,建立了運算元在l _ 2空間的特徵的完備性。
  15. Based on the effective mass theory and critical state model, an anisotropic theory of critical current and ac losses for single hts tape and tape stacks were established. analytical formulae were presented to calculate critical currents and ac losses with an arbitrary angle between the wide side of hts tape and the direction of ac or dc applied fields. from the anisotropic theory of ac losses of hts sample, a numerical model to calculate ac losses of hts coil was developed

    基於臨界模型與高溫超體的有效質量理論,建立了高溫超材及並聯堆疊材的交流損耗與臨界電流的各向異性理論模型;給出了高溫超材的交流損耗及臨界電流隨(交、直流)背景磁場與超面夾角變化規律的理論公式;依據所建立的高溫超短樣材的各向異性理論公式,給出了高溫超線圈交流損耗的數值計算模型;並利用該模型,計算了高溫超雙餅線圈的交流損耗;並與實驗測量結果進行了比較分析。
  16. Quantum confinement effects of the lowest conduction band states in semiconductor quantum dots

    體量子點最低導帶態的量子限制效應
  17. We need to start their sintering at same temperature and to ensure conductor paste and green - sheet ceramic bodies have the same shrinkage rate

    為了消除二者之間的燒結應力,共燒漿料與aln生坯必須同時進入燒結狀,具有相同的收縮特性。
  18. The zno particles are excited by ultraviolet ( uv ) exciting light ( 365 nm ), showing two photoluminescence ( pl ) peaks / bands, centered at 2. 90 ev ( blue ) and 2. 23 ~ 2. 41 ev ( yellow - green ), respectively. the intensity of the yellow - green band was reduced after the product had been annealed in n2 and o2 at 350 c for 1h. ultraviolet visible absorption spectrum shows that the zno absorbs ultraviolet light intensely

    對于復合h ps zno結構的發光機制,認為是納米h價中的電子在紫外光的激發下,躍遷到zno的,從而處于激發,由於多孔硅的比氧化鋅的低, zno中處于激發的電子很快躍竄到多孔硅的,然後再與h價中的空穴發生復合,發出可見光。
  19. Our pl spectra under hydrostatic pressure showed that the conduction band minimum is in fact the result of the interaction and mixing of the gaas conduction band states. people are still arguing that ganxas, . x ( x < 0. 1 ) and gaas will form type - i or type - ii quantum well

    通過光壓力光譜的研究,我們發現gan _ xas _ ( 1 - x ) ( x 0 . 1 )的實際上主要是gaas各導帶態相互作用的結果,這為混合模型提供了實驗的證據。
  20. The main idea under controller design is damping model nonlmearities with control input to force the system dynamic into a linear sliding surface and utilizing dynamic filters to ensure the boundedness of states, inputs and outputs. the mismatched model uncertainties are suppressed with extra items in control input

    Dsc控制器通過對消系統非線性項,將系統動驅至線性滑模;引入動濾波器,確保系統的狀及輸入輸出有界,同時避免了對非線性模型多次求來的復雜性;在虛擬控制輸入中利用附加項來克服不滿足匹配條件的不確定性。
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