簡電開證 的英文怎麼說
中文拼音 [jiǎndiànkāizhèng]
簡電開證
英文
letter of credit opened by brief cable-
Lottery ticket, scratch cards, shave the award card, shave the card, click and nip, the game card, pvc card, rechargeable card, it is good that the card speciality of telecommunications is made to you ! we are specialities to make lottery ticket, shave the card, reward the card, shave the award card, tear the card, opening card, it is happy to shave, take off the card, lottery tickets, not doing the glue, the anti - counterfeit card, lottery - attached ticket, etc. : promoting modernly indispensably, the paper card, paper rechargeable card, pvc network game is clicked and nipped, game card, the phonecard, the card of surfing internet, telecommunication card, read the card, the film is clicked and nipped, monthly card, ip card, ic card, honored guest s card, membership card, favourable card, magnetic stripe card, etc.
獎券刮刮卡獎卡刮獎卡撕開卡揭開卡點卡游戲卡揭揭卡彩票電碼防偽數碼防偽物流防串貨系統800免費電話查詢系統網站查詢系統簡訊查詢系統不幹膠獎券學習卡閱讀卡晶元卡智能卡刮刮樂防偽卡電話卡上網卡閱讀卡電影點卡包月卡ip卡充值卡有獎門票噴碼順序碼， pvc卡貴賓卡會員卡優惠卡電信卡磁條卡條碼卡銀行貴賓卡證券卡有像證件卡接觸式ic卡非接觸式ic卡m1卡id卡服裝吊牌等各種卡類We are specialities to make lottery ticket, shave the card, reward the card, shave the award card, tear the card, opening card, it is happy to shave, take off the card, lottery tickets, not doing the glue, the anti - counterfeit card, lottery - attached ticket, etc. : promoting modernly indispensably, the paper card, paper rechargeable card, pvc network game is clicked and nipped, game card, the phonecard, the card of surfing internet, telecommunication card, read the card, the film is clicked and nipped, monthly card, ip card, ic card, honored guest s card, membership card, favourable card, magnetic stripe card, etc. : game, film, reading, examination websites are indispensable ; gush out yard, the substandard association of yard of the order takes the place of the company processed
獎券刮刮卡獎卡刮獎卡撕開卡揭開卡點卡游戲卡揭揭卡彩票電碼防偽數碼防偽物流防串貨系統800免費電話查詢系統網站查詢系統簡訊查詢系統不幹膠獎券學習卡刮刮卡晶元卡智能卡刮刮樂防偽卡電話卡刮刮卡閱讀卡電影點卡包月卡ip卡充值卡有獎門票噴碼順序碼， pvc卡貴賓卡會員卡優惠卡電信卡磁條卡條碼卡銀行貴賓卡證券卡有像證件卡接觸式ic卡非接觸式ic卡m1卡id卡服裝吊牌等各種卡類This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions
首先對加速度計及其測試技術的發展歷史和現狀，液浮擺式加速度計的工作原理和數學模型等作了簡要的介紹，然後確定了以二元調寬脈沖再平衡測試迴路為設計方案，並從控制理論的角度進行了分析，著重研究了系統中各部分的傳遞函數，利用系統開環傳遞函數分析了系統的穩定性，同時設計了系統的校正網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題，並按照系統分析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路，驗證了電路的正確性，最後按照測試系統的要求，採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具，利用該圖形化編程語言完成了測試系統軟體部分的設計，實現了測試功能。The results of experiments have show that electro - hydraulic proportional control system and its core controller of the auto crane ’ s performance are satisfied. it has the advantage of easily using and low cost, then it is worthy of further developing
核心控制器樣機的試驗情況表明，本文所設計的汽車起重機電液比例控制系統具有簡潔實用、成本低廉的優點，證明了本文研發成果的有效性和實用價值，為產品的產業化開發打下了良好的基礎。To open by brief cable
簡電開證This paper demonstrates the fundamental principle systematically, including the design process of a halbach motor. in order to make the design more easier and reduce the designing period, cad is applied to the motor design : the concise matlab language, to some extend, reduces the workload in electromagnetism design ; the mathematic modeling and collating programs compiled by apdl language in ansys substantiate the precision of the electromagnetism design
為了減少電機設計的工作量和縮短電機開發的周期，本課題對halbach電機採用計算機輔助設計：簡潔的matlab語言在一定程度上減少了halbach電機電磁設計的工作量，縮短了電機開發的周期；利用ansys自帶的apdl語言編寫的halbach電機建模與校核程序保證了電磁設計的準確性。The paper initiated electroabsorption modulator replacing the conventional model of sampling optical source and high - speed photonic switching. the novel approach greatly simplified the sampling system and improved the stability and reliability. it has been validated in experiment
首次提出採用電吸收調制器代替常規的「取樣光脈沖源高速光子開關」的取樣組合，大大簡化取樣系統的結構，提高取樣系統穩定性和可靠性，並進行了實驗驗證。In the brief introduction to geographical information system ( gis ), this dissertation proves that by combining reliable management with gis technology, presents a method which built the power structure model and math calculation model by using spatial data in a good interface between computer and user. this dissertation makes a number of target for calculating the distribution system, mainly aimed at circumstances which have an effect on power station repair, switch breaker, type of t connection, and double lines supply via the usage of system reliability calculation. at the same time, it provides the projected estimatio n when power station or transmission line will be added into the power system, and furnishes the theoretical information that the professional needs for power structure programming, design and equipment management
通過建立輸變電設施管理信息系統（ mis ） ，真實地反映出油田電網輸變電設施的運行管理現狀，為網路可靠性計算提供可靠的計算依據；在簡述地理信息系統（ gis ）技術的基礎上，論證了可靠性管理與電力gis技術結合的可能性，創立了在簡潔的人機圖形界面下利用空間數據建立網路結構模型及可靠性計算模型的方法；通過建立網路可靠性計算系統，進行了計及變電所檢修影響、切換開關、 t接點及雙回線供電情況下的可靠性指標計算分析，對油田電網及變電所（線路）的改（擴）建方案、增強性措施及接入系統的可靠性給予了工程評估，為電網規劃、設計及日常的設備管理提供分析決策依據。The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either
在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。In chapter 5, the principle of molten carbonate fuel cell power system is introduced. the development of the system, such as the improvement of cell components including electrodes and electrolyte, the fuel processing, the heat recovery, the power conditioning and grid interconnection, the control system and the combine generation
第五章在簡要敘述了熔融碳酸鹽燃料電池發電系統原理后，從以下幾個方面對系統的開發進行了論證:單體元件（電極和電解質）性能的提高，燃料的處理，余熱利用，電力調節和並網，燃料電池/燃氣輪機/汽輪機聯合發電以及系統控制與優化。The control tactics of space voltage vector are investigated, and the simplified algorithm which judges the sector location of reference vector and calculates switch operation time is put forward. by analyzing the current hysteresis control, the relation between switch frequency, and hysteresis bandwidth and input inductance of pwm rectifier is deduced. by applying instantaneous power theory, the principle of pwm rectifier power control is analyzed, and the direct power control by matlab toolbox through estimating active power and reactive power with virtual flux is realized, and the simulation results prove that it is correct
對常用空間電壓矢量控制策略進行分析，提出了給定參考矢量所在區間判斷的簡化方法，以及電壓矢量作用時間的求取方法；分析了電流滯環控制策略，推導出開關頻率與滯環帶寬以及整流器輸入電感之間的關系；應用瞬時功率理論分析pwm整流器功率控制原理，通過虛擬磁鏈估計有功功率和無功功率，用matlab實現了直接功率控制，並驗證了該控制方法的正確性。This paper briefly introduces the basical principles of finite element method which can be used for analysis of vehicles structure, describes the principles and methods of design optimization for vehicles structure parameters, establishes the finite element models of semi - dragging trucks, which is used to load cement dispersedly and container semi - dragging trucks, applying the ansys software, calculates the static strength, then proves the calculation results to be accurate by means of non - electric charge surveying experiment. at the same time, the author puts forward the model and methods of optimization design for structure parameters of vehicle frames, exploits the applied software of semi - dragging trucks, does optimization design. analyzes the feasibility of the optimization results, then gives the structure improve direction. besides this, the author has had initiative research about interface software, etc
本文簡要介紹了可用於汽車結構分析的有限元法的基本理論，闡述了汽車結構參數優化設計的原理和方法，建立了散裝水泥罐式半掛車和集裝箱式半掛車車架的有限元計算模型，利用有限元軟體? ansys進行了強度分析，並對罐式半掛車通過電測試驗驗證了計算模型和計算結果的正確性；論文還提出了半掛車車架結構參數優化設計的模型和方法，開發出了半掛汽車的結構優化設計軟體，調用了ansys軟體對其進行了優化設計，分析了優化結果的可行性，並給出了該半掛車的結構改進的方向。With the using of microsoft visual basic 6. 0, a multimedia computer - aided design system of small type pumping irrigation district is developed in this paper. provided with the live multimedia messages as well as a good man - machine conversation mechanism, this system can help the user to finish the planning of an pumping irrigated area such as the layout of canal system, the selection of pump models, the establishment of the irrigation program, the calculating of canals " parameters, the estimate of the project magnitude, the selection of the field constructions, the economic analysis of the project, the output of results, etc, a new oo ( object oriented ) programming method is adopted in this system, various softwares are integrated in this systems as well by the " automation " technic provided by vb, in addition, the multimedia technic is applied to this system for the first time, it makes the system easy to ope rate. as for the optimization of the canals " section, a new optimization method is adopted based on the existing theories about the canals " section, and in this way, with the purpose of minimizing the project ' s investment as well as a stalized canal, limited by the longituding slope, the canals " best feasible parameters can be deduced. furthermore, a integral method to reckon the earth work is developed in this paper, by this way, the estimate precision of the earthwork is enhanced notably. this paper includes the particular illumination for the developing procedure of each systems " segment, and in the end, the directions of the system are demonstrated in a sample area which lies in the zhaija village, taizhou city, jiangsu province, the running results showed that the initial purposes are achieved effectively, and it has a preferable practicability
在渠道縱橫斷面優化方面，本文在利用已經比較成熟的縱橫斷面優化理論的基礎上，提出以工程總費用最小為目標函數，以渠道縱坡i為控制變量，以渠道不沖不淤流速及灌區允許地面比降為約束條件，通過縱橫斷面聯動優化的方法得到渠道的最佳工程可行的斷面參數。另外，針對部分地區的取土困難的狀況，本文採用積分法計算渠道工程土方量，從而大大提高了土方量的估算精度，有助於準確控制工程投資規模及資金投向。本文詳細闡述了該系統所採用的編程方法、系統構成、系統各組成模塊的開發過程以及灌區規劃所採用的優化方法及原理，最後應用本系統對泰州市翟家村機電灌區進行規劃設計，運行結果證明其操作比較簡便，界面友好，運行速度快，規劃成果合理，基本達到了系統預定的要求，具備較強的實用性。First ， we introduce some basic cryptography theories such as secret - key cryptography ， public - key cryptography and hash algorithm. second ， we give the concepts of x. 509 certificate, crl ( certificate revocation list ) and certification path, and following this, we give some examples of certificate and authentication architectures. finally, we present an example of implementation of the certificate and key management system and some application cases of this system
論文首先簡單介紹了秘密密鑰密碼體制、公開密鑰密碼體制、 hash函數以及基於x . 509的公鑰證書等基礎密碼學理論；其次，論文描述了幾種典型的證書體系和鑒別機制；最後給出了一個電子政務證書管理系統的具體實現例子。Based on the investigation with several voltage control methods, such as venturini method, instantaneous double - voltage synthesis method and space vector modulation method ( svm ), three new control strategies are put forward. firstly, a time - varying modulation coefficient svm method is proposed to improve mc ' s anti - disturbance performance under the asymmetry input voltage. secondly, a 5 - state switching strategy is presented for mc controlled by the svm method, which reduces the commutation number and switching losses remarkably
在分析了venturini控製法、瞬時雙電壓法、空間矢量法等電壓控制方法的基礎上，提出了在非對稱輸入條件下矩陣變換器空間矢量法的時變調制比改進控制策略，提高了變換器的抗干擾性能；對空間矢量法的開關策略進行了研究，提出了新型5狀態開關策略，在保證其他性能不受影響的條件下，減少了變換器的換流次數和開關損耗；提出了一種矩陣變換器單電壓合成的新方法，它不僅使得變換器的控制簡單，計算量減少，而且使得開關損耗達到最少。While the installed video sensor detects abnormal movement, the system will record the detected field and pops up phonetic alarm and sound and light alarm for the management. in addition, the system sends the messages to the management via mobile phones. the application of the system protects safety of the scientific achievements and standards establishment in the shanghai institute of standardization
鑒于機房的重要性，進出機房要通過指紋驗證，而且，當系統檢測到消防報警信號后聯動門禁系統打開機房門，確保機房人員的安全同時機房內安裝有防盜報警探頭，當探頭檢測到有人活動則聯動對應的攝像機進行錄像，對于重要的報警事件不僅通過聲光電話等方式對外報警，還通過手機簡訊通知相應的管理人員進行系統的維護與管理。At the same time, the method of disposal phase shift of ct by compensation is introduced. then the analysis and statistic of electrical power quality, the control scheme and compensating amount of capacitor for reactive power compensation are analyzed respectively. and in the paper, the control with a / y and the switch with ac contactor and solid state switch is valid measure not only for improving operate level economically and amending electrical power quality but also for avoiding of replacing switch frequently and decrease economic loss
然後對現有的演算法進行了詳細的分析、比較，篩選出既能滿足硬體要求又可降低投資、保證精度、簡化軟體的方案，確定了準同步采樣的方案，並通過對準同步采樣誤差的分析，提出了一種從45開始采樣，從而提高精度的采樣數據處理辦法，同時，對于電流互感器相位漂移提出了一種補償辦法，接著對裝置中電能質量分析與統計以及無功補償中電容器的補償量、投切原則也作了相應分析，其中對于無功補償採用y混合接線，並利用交流接觸器和固態開關共同投切電容，不但提高了經濟運行水平、改善了電能質量，而且有效的避免了頻繁更換開關，減少了經濟損失；最後，設計了裝置的硬體電路並繪制了相應的軟體流程圖。Starting from the frozen food and refrigeration principles and using comparative analysis method, we get conclusions that in the blow - frozen device, the open - mode, cold - quantity reclaim, low - press, direct - cooling air, absorbing - heat air cycle have the most significant reductions in food freeze dry cost, food hygiene, devices delicate, organizating air stream, non - electrical heat, high efficiency and safe refrigeration etc. the cold - cumulating and dryness tin is the equipment which applys the store - release characteristic of cold - cumulating stuff, ensures the higher efficiency of open - mode cold - quantity reclaim low - press direct - cooling air, shoulders conveyance of the saturated and frozen air to frozen storeroom to reduce dry cost of food and dry the cycling air to ensure safe and reliable
從食品冷凍和製冷原理入手，用對比分析方式得到了在吹風式凍結裝置中，開式回冷低壓直接冷卻吸熱循環空氣製冷機具有最大幅度降低食品凍結乾耗、確保食品冷凍安全、系統簡單、凍結庫小巧、氣流易於組織、無電機熱量、效率較高和製冷安全等結論。蓄冷乾燥器是通過蓄冷材料的蓄?釋冷特性，來保證開式回冷低壓直接冷卻吸熱循環空氣製冷機具有較高的效率，同時蓄冷乾燥器還擔負著輸送飽和低溫空氣至凍結庫以降低食品凍結乾耗和乾燥循環空氣以確保整機安全可靠工作的主要設備。Simulation comparisons verify the superior performance of the tri - state pwm technology. experimental results indicate that the current - controlled tri - state pwm switching power amplifier based on sample - hold strategy has high frequency bandwidth and fast dynamic response in a wide load range, which can well meet the demands of high - speed magnetic bearing
模擬結果驗證了電流三態調制技術的優越性能；實驗表明本文研製的基於采樣-保持策略電流三態調制開關功放具有結構簡單、效率高、紋波小、電流動態響應快、頻帶寬、受負載影響小等優點，能很好地滿足高速磁軸承的要求。Ii to develop electronics commercial affairs is an important way of the existence and development of the medium - small sized enterprises according to the characteristics of medium - small sized enterprise the author sets forth the importance the current situation, change and opportunity even problems of developing electronics commercial affairs in those enterprises iii the development of applied electronics commercial affairs system in the medium - small sized enterprises in the development and application of electronics commercial affairs, there are always many disadvantages, such as short range, weak results and so on the author gives some ideas about developing electronic commercial affairs in the medium - small sized enterprises from business management and thinks that it should experience four steps - practicable analysis, applied system plan, applied system analysis and applied system design in the process of development design, many things should alse be paid at attention too iv the operation of electronics commercial affairs system in this part, the premise, preparation and process of electronics commercial affairs system are introduced v the management of electronics commercial affairs system, web sites propaganda and daily supervisory are the basic work, and accomplishing the work plays a large part in the system,
（ 3 ）中小企業電子商務應用系統的開發針對我國中小企業在電子商務開展和應用方面普遍存在應用面不廣，效果不佳，成效不大的現狀，從企業的各項業務管理的需要出發，對中小企業如何開展電子商務談了些看法，認為在中小企業的電子商務系統開發中必須進行可行性分析論證，應用系統規劃，應用系統分析，應用系統設計等幾個步驟，以及開發設計過程中應該注意到的各個方面。 （ 4 ）電于商務系統的運行闡述了中小企業電子商務系統運用的簡單過程，闡明了域名申請、網站測試等工作是實現電子商務系統運行的前提和如何做好這些前提工作。 （ 5 ）電子商務系統運行的管理闡述了網站宣傳和日常監測是中小企業電子商務網站管理的基本工作，以及如何做好這些工作，做好這些工作有利於中小企業電子商務網站作用的發揮。分享友人