time-current characteristic 中文意思是什麼

time-current characteristic 解釋
時間電流特性
  • time : n 1 時，時間，時日，歲月。2 時候，時刻；期間；時節，季節；〈常pl 〉時期，年代，時代； 〈the time ...
  • current : adj. 1. 通用的，流行的。2. 現在的，現時的，當時的。3. 流暢的；草寫的。n. 1. 水流；氣流；電流。2. 思潮，潮流；趨勢，傾向。3. 進行，過程。
  • characteristic : adj 有特性的；表示…特性的，…特有的。 Japan s characteristic art 日本特有的藝術。n 特性，特徵，性...
  1. Functions realized are as follows : search for current news of educational administration management on the web. course selection in the prescribed time, and characteristic searching in roles of student, teacher, president, school or department leader, etc. the usable information include student ' s basic information, student ' s score, curriculum schedule, teacher assess, and so on

    本系統實現的功能有：網上查詢教務管理最新消息；學生、教師、學校領導、院系領導以不同角色的個性化信息查詢，包括：學生基本信息、學生成績、上課課表、教師評估結果等信息；在規定時間內的學生網上選課。
  2. The current interest in melatonin is wintnessed by the growing number of scientific papers directly or indirectly dealing with this molecule, in the last 10 years, the mean number of articles has doubled and reports on new compounds acting at the melatonin receptors abound, although the search for a clear therapeaatic role for these ligands is still under way beside the scientific interest, there is a contemporary, but largely independent, explosion of a free market of various products containing mt, which have been presented at antiage agents protecting against differe kinds of injuries, although this action still lacks a solid scientific foundation. indeed while a number of physiological action of mt are coming to light, the exact role and the the real therapeutic benefit of this compound still remain unclear, both have been the subject of debate. with a lot of potential actions still to be fully demonstrated and with some mechanisms deserving more clarification, in sense, the appellation of the hormone of darkness, attributed to mt beacause of its characteristic concentration / time profile, seems extremely appropriate

    除科學興趣以外，也有暫時的，在很大程度上不可靠的有關各種含有mt的產品開發的探索，如出現的保護多種損傷的抗衰老劑。盡管這些產品的作用仍缺少堅實的科學基礎，事實上當mt的許多生理作用研究清楚后，這種物質的確切作用和真實的治療效果仍不得而知。有許多潛在的作用需要充分論證，有些機理需要進一步區分，在某種意義上說，稱mt為黑暗激素，主要是由於在某一時間的特定濃度分佈似乎更合適。
  3. The safety of transmission line plays a important role in power system safety it is not only the requirement of ensure supply power reliability, but also the necessary precondition of enhance power system stabilization, to remove faulty line quickly and accurately, also keep non - faulty line continuous work when some transmission line faults current differential protection is a kind of simple, reliable and good - selective protection manner to any variety of transmission lines, power system development needs current differential protection apply to transmission lines, moreover the advancement of electric and communication technology enable current differential protection apply to transmission lines firstly, the paper discusses, analyses the research and application transmission line protection in detail, compare the principle and realistic presupposition of general line pilot protections secondly, because conventional current vector differential protection are influenced easily by load current and transitional resistance, in order to at the same time quicken protection act, the principle and criterion include work characteristic of differential protect based on fault component sampled values are studied, results shows that differential protect based on fault component sampled values excels general vector current differential protection in reliability, sensitivity and anti - saturation of current transformer in addition, synchronous current sampling methods at all terminals of line is analyzed and estimated lastly, the principle and criterion. also device design about current sampling values differential protection based on optical fiber communication, which apply to short transmission lines are concretely investigated,

    基於基爾霍夫定律的電流差動保護無論對於何種形式的輸電線路都是一種簡單、可靠、選擇性強的保護形式，電力系統的發展使得電流差動保護應用於線路保護成為需要，而電子、通信技術的發展使得電流差動保護應用於輸電線路成為可能。首先，本文對目前線路保護的研究和實際應用情況進行了討論和分析，比較了常用線路縱聯保護的實現原理和實現條件及優缺點。其次，針對常規相量電流差動保護易受正常負荷電流和故障過渡電阻影響的缺點，同時為加快差動保護的動作速度，對基於故障分量瞬時采樣值電流差動保護的原理、判據、動作特性等作了討論和分析，結果表明基於故障分量瞬時采樣值電流差動保護在可靠性、靈敏度、抗電流互感器飽和方面明顯優于常規相量電流差動保護，對電流差動保護各端的同步采樣方法和數據通信也進行了分析和評價。
  4. First of all, we bring forward the basic project of tadil, which adapts to combined operations. it is suggested to use tdma ( the abbreviation of time division multiple access ) as the working pattern and utilize the concept of mobile ad hoc network to construct the data link network. aiming at the impact of time delay on data link and the characteristic of cooperative combat under the command of director aircraft, this thesis applies a kind of kalman filtering algorithm in polar coordinates to compensate the error of time delay, and then does the transformation of target motion parameters to obtain the current information of target

    本文結合空軍裝備部某「十五」預研課題，圍繞著戰術數據鏈、多機協同多目標攻擊、超機動攻擊、空對地攻擊這四個方面展開了一系列的研究工作:本文首先給出了適應三軍聯合作戰的戰術數據鏈系統的基本方案，建議採用時分多址的工作模式，並利用移動自組織網路的概念構建數據鏈網路，同時針對數據鏈傳輸信息的時間延遲特性和指揮機指揮下的多機協同作戰特點，應用一種極坐標系下的卡爾曼濾波演算法對該傳輸延遲誤差進行補償，並在此基礎上進行目標運動參數的轉換，以獲得目標相對于某無人機的當前運動信息，且利用模擬驗證了方法的有效性。
  5. Abstract : the current technical condition and grain production and distribution as well as the characteristic of circulation of area grain storage in yunnan province has been analyzed, at the same time, the technical measurement for improving the level of grain storage and transport has been discussed. however, the main line of grain circulation taking bulk storage and bulk transport as the primary form will be set up, and the modern grain storage equipment will be fitted in newly build and improved large - scale granary, simultaneously, the supervisory and examination mechanism of province and area will be strengthened

    文摘:分析了雲南省區糧食儲藏技術現狀及糧食產銷和流通特點，論述了提高糧食儲運水平的技術措施，即建立以散儲散運為主要形式的糧食流通主幹線；在新建和改造的大型糧庫配備先進的儲糧設施；健全省區內的糧食監督檢驗機制等。
  6. Based on the current development and characteristic of therapy of tcm in the treatment of cancer, we analyzed the role of correlative factors for cancer response evaluation, including quality of life, survival time, and remission rate

    本文分析了其不適用於中醫治療腫瘤療效評價的原因，同時分析現行的中醫治療惡性腫瘤的療效評價標準以及相關因素，包括生存質量（社會、心理、生物學方面） 、實體瘤緩解率以及生存期等諸多因素。
  7. Firstly, the paper retrospects the development of eso and tries to probe into the theoretical field : the explanation of it ' s definition, the conclusion of it ' s characters, the comparison of eso and other stock inspiration system, followed by the analysis of it ' s theoretical basis and incentive effect ; meanwhile, the paper probes into the realistic situations of eso in usa and china in order to seek the regulation and draw the advantages and disadvantages ; to this part, the paper takes the following four items as the main barriers to eso ' s implementation in china : the over restriction of current law system, the low efficiency of the market, the poor corporate governance structure and a lack of a reasonable performance index system, and elaborately analyze the impacts of the obstacles on eso ; after the analysis made above, the paper gets down to taking some methods to solve the problems in accordance with the characteristic of the barriers. as far as the internal defects of the mechanism are concerned, the paper begins with the scientifically design of the key components, studying the aspects of bestowal, change, loss, the executive method and the executive time. then the paper focuses on designing a performance index system which is an essential part of eso, introducing the bsc to improve the present performance index system, under the reasonable guidelines resigning it at both the levels of company ' s and employee ' s levels. finally, as regards how to perfect the outside surrounding of eso, the thesis makes some suggestion

    本文首先回顧了股票期權制在國內外的發展及較為詳盡的分析了股票期權制度的相關理論：闡述了其涵義，特徵，理論基礎，激勵效應並於其他幾個較易混淆的股權激勵機製作逐一的比較，以進一步澄清人們對其的錯誤認識；同時，對股票期權制在美國和我國的現狀進行深入的實證研究，探求其內在規律，在肯定其成果時指出其不足；至此，筆者認為，我國上市公司要推行股票期權制度將主要面臨以下四類障礙：公司治理結構不完善、市場有效性差、現行法規體系不完善及缺乏客觀的業績考評指標體系，並詳細分析了各類障礙的現狀及對股票期權制的負面影響；在此基礎上，針對各類障礙的不同性質，著手探討消除這些障礙的措施：對于股票期權制內部的缺陷，本文先對各個關鍵要素進行科學設計，系統的剖析了贈與、變更、喪失、執行方式、股票來源等技術性問題，再以大量篇幅研究了如何構建出一套與實施股票期權制相配套的業績考核指標體系，引進平衡計分卡的思想對國內現有的指標體系加以改進，以一組合理的評價原則為指導，從公司及員工個人業績考評兩個層面上來設計該指標體系。
  8. So it is very important to investigate the inverse time characteristic of microprocessor distance protection. this paper emulates all kinds of faults of transmission lines by using emtp, and gets relative current and voltage sample values. then many distance protection thoughts and algorithms are adopted to compare each inverse time characteristic, better arithmetic and set thoughts are got

    本論文應用emtp進行輸電線路各種故障情況的模擬，采樣取得保護相關的電壓、電流數據；採用各種距離保護思想、演算法，採用c語言進行計算，比較各自的時限特性，得出反時限特性比較好的演算法及其整定思路；對于各種故障情況，應用相關整定思路進行離線計算，得出各種原理的時間距離特性。
  9. On the basis of reviewing the flowing management situation of the current civil servant, the author introduces the management information system to the flowing management of civil servant, and combines civil servant ' s course of flowing, managing essence, information interchange, and own characteristic of system etc, then makes the function designs and structure analysis on the management information system of civil servant ; at the same time, the author gives the brief introduction of essential technological terms which construct the system

    在反思現行公務員流動管理現狀的基礎上，把管理信息系統引入到公務員流動管理當中，並結合公務員流動過程、管理本質、信息交流、系統自有特性等方面對公務員流動管理信息系統進行功能設計和結構分析；同時簡要介紹構建系統必需的技術條件。
  10. Transfer function of the closed - loop is presented after analyzing every part of the closed - loop of current control. the time - domain and frequency - domain characteristic of the closed - loop is analyzed and the stability error is discussed, and the closed - loop ’ s ability to restrain the noise is simulated by the tool of simulink, so as to optimize the parameters

    分析了穩流環路的各個環節，得出了穩流環路的控制方程，從控制角度分析了該環路的時域、頻域特性和穩態誤差，並對環路抑制電路噪聲性能進行了simulink模擬，從而得出最佳的參數。
  11. Adopt market segmentation, market positioning, and market combination in anglicizing the current situation of passenger transportation in southwest china, take, its technologic economic characteristic and the resources of the form of railway passenger transportation into consideration in developing and selling new products, we can create the best market value and economic efficiency. in accordance with basic theories of transportation system and modern marketing, the thesis takes the means of marketing segmentation and balance of supply and distribution, makes a thorough analysis on influential factors of passenger transportation, requirement, structure, transportation net, etc. dealing with the requirements and supplies of passenger transportation market of southwest china, the thesis tries to advance a new market countermove including the overall strategy, product development, brand design, sale ' s organizations, on the basis of present situation of leaving time, passenger mobility, average distance, geographical position and passenger composition

    本文按照交通運輸系統分析和現代市場營銷學的基本理論，運用供求分析和市場細分的方法，從影響因素、需求量、客運結構、運輸網各方面對西南地區客運市場需求和供給狀況進行分析和研究，並在此基礎上按照出行時間、客流性質、平均行程、地理位置、旅客成分等對西南鐵路客運市場進行市場細分和目標市場定位，提出了「以能保長、以速引中、以價爭短、以質創新」的營銷總體戰略和產品開發、價格管理、品牌設計、銷售組織等一系列營銷對策。
  12. Inverse - time overcurrent protection is used in power supply installation to fit the heat characteristic of the device ' s fault current. with reference to international standard characteristic equations, the equation by the integration of current term is suitable to describe the process of heat accumulation

    將反時限過流保護的概念引入智能電源系統，參考國際通用反時限控制曲線，通過構造器件的熱庫模型採用微處理器程式控制能夠方便實現各種反時限控制特性。
  13. In addition the h. kantz method is applied to analyze the time series of the motor current, the maximal lyapunov exponent calculation is realized, the criterion for the motor chaos is brought forward, the existence of chaotic phenomenon in the induction motor is verified by the characteristic exponents, which proves theoretically that the chaotic movement is one of the reasons that results in the low frequency oscillation of the induction motor system

    應用h . kantz方法對電機電流信號的時間序列分析，實現了最大李亞普諾夫指數的具體演算法，提出了電機出現混沌運動的判定根據，通過特徵指數驗證了異步電動機現象的存在，從理論上說明混沌運動是異步電動機系統產生低頻振蕩的原因之一。第三部分深入研究了系統低頻振蕩的主要影響因素。
  14. For the luggage conveyer system runs smoothly and steadily, we synthetically analyzed the characteristic of the belt machine ' s running, starting and applying the brake. we decide to use the current transducer 6se92 of siemens with high function u if control. this transducer ' s functions of adding or decreasing speed with s form and torque promoting can magnificently solve the belt machine ' s vibration in the time of starting and brake and make the belt machine smoothly working with vary goods

    為了實現行李輸送系統平滑穩定的運行，我們綜合分析了皮帶機運行特性，及起、制動時的特性，決定採用具有高功能型u f控制的通用變頻器6se92 （西門子） ，此變頻器的s形加減速功能和轉矩提升功能，能很好的解決皮帶機起制動時的振動及不同帶載量時的穩速運行。
  15. The main works are organized as follows : based on the switching function method and time domain simulations, the small disturbance transfer a characteristic through the converter is analyzed. because of the modulation effect of the converter, the small disturbance in the shaft of turbine generator will induce ac voltage component with the same frequency as the disturbance on the dc side. and the resulted ac current on the dc side will have the similar frequency shift when transfers to the stator of the generator

    主要內容包括： （ 1 ）基於開關函數法和模擬分析，研究了機組轉子上次同步頻率的小擾動，在hvdc交直流兩側響應的頻率特性- - - -轉子上的小擾動經直流換流器調制后，將會在系統直流側感應出與擾動同頻率的電壓分量；直流側電流擾動反映到交流定子側，也將發生頻率偏移。
  16. But how to measure grounding resistance of large grounding grid simply and exactly is a difficult problem to electric power staff all the time. this paper has classified measuring methods of grounding resistance at home and abroad, and has analyzed interference factors during measurement, and has summarized principle and characteristic and measuring current and so on of various measuring methods

    本文對國內外現有或正在研究的測量方法進行了分類，分析了測量地網接地電阻干擾的主要來源，並首次全面地對各種方法的原理、特點、測試電流、消除干擾能力和測試結果進行了比較分析、總結歸納，方便后來者研究應用。
  17. In the paper, a uniform information - model of standard datum was established, based on detailed analyzing the characteristic of the standard datum of the time quota. a tool to construct the enterprises " standard datum was developed based on dynamic database technology and the situation of lacking in the time quota management tool in current software system was changed fundamentally, and which can be used to directly predetermine the time quota on the basis of the standard datum

    在詳細分析工時定額標準資料的數據特點的基礎上，建立統一的標準資料信息模型，利用動態數據庫技術，實現企業標準資料庫的動態構建工具的研究與開發，從根本上改變現有工時定額軟體系統中缺少定額標準管理工具的現狀，為直接引用標準資料進行工時定額測算打下基礎。
  18. After introducing characteristic and hardware structure of dsp, 1 decide to adopt current excellent performance integrate dsp and its tap system ; after i know this, this paper present a software and hardware scheme which is based on fault signal " data acquisition and processing by using advanced dsp technology, and in arithmetic aspect, a dsp based real - time digital filter comes true. this simplifies the system design and improves the stability and real - time property of data acquisition. adopting a dsp integrate plank ( including a dsp cmos chip and external storages ) and using software to manage and prepare entire system can improve greatly the extension, maintenance and common of the application system

    在闡述了dsp的硬體結構及特點之後，結合本課題的研究方向，本文決定採用目前最高性能的dsp集成板及其開發系統，並在了解此集成板的硬體結構和開發環境的基礎上，提出了利用先進的dsp技術來實現故障信號的採集與處理的軟硬設計方案，並從演算法方面實現了dsp的實時數字濾波，簡化了測試系統的設計，提高了測試儀器的實時性；而採用dsp板卡（上面含有一個dsp晶元及外存） ，通過軟體對整個系統進行調配和管理，可以極大地提高應用系統的可擴展件、可維護件及通用性。
  19. Magnetizing inrush current has obvious singularity, and wavelet transform has multi - scale and good time - frequency local characteristic, that it is particularly well adapted to extract the characteristic of signal ' s edge and peak value, and can check up the singularity well

    變壓器勵磁涌流具有明顯的奇異性，小波變換具有多尺度分析和良好時頻域局部化特性，適合提取信號邊緣和峰值突變的特徵，能夠很好的檢測信號奇異性。
  20. Integrated the characteristic of storage battery in the stand - alone photovoltaic system, the paper produces a valid method for the charging and discharging management : 1 ) the storage batteries are grouped in order to achieve the average - charging > the average - discharging and the quick - charging. 2 ) when the energy of photovoltaic array is full, capacity maintenance to the " illness " storage battery is taken. 3 ) under the current system condition, the time ( hours ) that the batteries continue to work is displayed

    結合獨立光伏系統中蓄電池工作特點，提出了對蓄電池組的充、放電管理的有效方法：採用分小組方法實現蓄電池小組進行均充、均放和快速充電；在光伏發電充足時對落後蓄電池進行容量恢復維護；給出在當前環境與負載條件下，蓄電池組所能持續工作的時間；同時適當時候採用維護充電，以延長電池壽命。
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