步進式選擇器 的英文怎麼說

中文拼音 [bùjìnshìxuǎnzháiqì]
步進式選擇器 英文
step-by-step selector
  • 步 : Ⅰ名詞1 （步度; 腳步） pace; step 2 （階段） stage; step 3 （地步; 境地） condition; situation; st...
  • 進 : 進構詞成分。
  • 式 : 名詞1 （樣式） type; style 2 （格式） pattern; form 3 （儀式; 典禮） ceremony; ritual 4 （自然科...
  • 選 : Ⅰ動詞1. （挑選） select; choose; pick 2. （選舉） elect Ⅱ名詞（挑選出來編在一起的作品） selections; anthology
  • 擇 : 擇動詞（挑選） select; pick; choose
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  • 步進 : step by step步進操作 step by step operation; 步進傳動 step by step drive; 步進法 step by step met...
  • 選擇 : select; choose; opt; election; choice; culling; alternative
  1. 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。
  2. Based on the degree of urgency of going into graceful ospf restart, the reason of graceful ospf restart is divided into software - restart and hardware - restart, and the way of graceful ospf restart is divided into pre - restart mode and post - restart mode accordingly. after the compare with the traditional ospf realization method and the analysis on the mechanism of the trigger of graceful ospf restart and synchronization of link state database and the exchanging with the route management module ( rtm ), it is figured out that how to choose the restart mode and how to switch from pre - restart mode to post - restart mode, and how to synchronize the link state database, and how to define the interface and process flow exchanging with protocol supporting module, and how to deal with the forwarding table on the condition of multiple route protocols who also have the capability of graceful restart. finally, the idea of graceful ospf restart with two modes above was realized in the t series routers that belong to a telecommunication corporation

    本文首先找出了引起溫和重啟的各種原因，然後根據溫和重啟的緊迫程度，提出把溫和重啟的原因分為硬重啟與軟重啟，並設計相應的前啟動模式與后啟動模式;結合傳統ospf協議的實現方法，通過對其觸發機制、數據庫同步機制、與支撐模塊的交互機制以及多協議同時重啟時路由同步機制的分析，解決了在溫和重啟過程中啟動模式如何選擇與切換、數據庫如何同步、與協議支撐介面如何定義與交互的問題，並揭示出在多協議同時進行溫和重啟過程中所必須遵循的一般規律，最終在一個通訊企業的t系列路由器上實現了兩種模式下基於ospf協議的溫和重啟。
  3. Firstly, the paper, combining the characteristic of synchronous pulse bursts and inhibition with the modified pcnn model, presents a way of finding the foveation points in the images adaptively and effectively, and simulates the human vision system. secondly, pcnn is extended to pcnns, based on the properties of information couple and transmission, an algorithm that is used to fuse images of the same target got by several sensors to an image is presented to simulate the human vision system. thirdly, combining the properties of synchronous pulse bursts, capture, and transmission and competition of waves, the paper presents two ways of classification, one is an algorithm based on the properties of neuron to capture and inhibit to classify the data taking on any complex unlinear distribution robustly, the other is based on the restricted distance and modified of the former to remove the influence of inferior samples in classification ; fin ally, based on the accumulative difference pictures, and the forming and transmission of pcnn wave, selecting and controlling the direction of autowave by connecting the neighbouring neurons selectively, the paper presents a way to simulate the tracks of moving object and detect the moving direction

    首先結合pcnn的同步脈沖發放和側抑制特性，提出了基於改進型pcnn的圖像凹點檢測演算法，該演算法是一種自適應而有效的圖像凹點檢測方法，並且較好地模擬了人類視覺系統；然後，結合信息傳遞和信息耦合特性，將pcnn擴展成pcnns （ pcnn網路群） ，提出了一種基於pcnns的圖像融合演算法，能夠將多個傳感器獲取的同一目標的圖像信息融合到一幅圖像中，有效模擬了人類視覺系統；另外，結合pcnn的同步脈沖發放特性、捕獲特性和波的傳播競爭特性，開拓地將pcnn用於模式分類中，提出了基於耦合神經元點火捕獲抑制特性的分類方法和改進的約束距離下的pcnn分類方法，前者可實現對樣本空間中任意復雜分佈訓練樣本的穩健非線性分類，而後者能夠消除訓練樣本中刺點對分類的影響；最後，結合累積差分圖像思想、 pcnn波的形成與傳播特性，通過各神經元之間連接取向來選擇與控制自動波的流向，將pcnn用於運動視覺分析中的運動軌跡模擬及運動方向檢測。
  4. Based on the formers, this dissertation efficiently selects the face features abstracting using ica. with no decline of recognition rate, the feature dimension is reduced, so the course of recognition is accelerated. support vector machine pattern recognition method is based on vc dimension theory, adopting the srm principle and considering training error and the generalization ability, which has shown many special advantages in dealing with small samples, non - linear and pattern recognition in high dimension

    本文採用基於矩陣s的人臉表示方法，將ica特徵選擇的概念和演算法用於人臉特徵的提取和優化，在不影響識別率的情況下，降低了特徵維數，提高了識別速度；支持向量機（ svm ）模式識別方法基於vc維理論，採用結構風險化原理，兼顧訓練誤差和泛化能力，在解決小樣本、非線性及高維模式識別問題中表現出許多特有的優勢；對于多類問題，介紹並採用了「一對一」的策略進行svm分類器設計；對于圖像預處理，詳細介紹了幾何歸一化的演算法步驟。
  5. First of all we discuss the model of information purifying and bring forward the methods of setting up the according fuzzy set and subject function. secondly after analyzing the traditional technology and the strongpoint and the shortcoing of information purifying we improve it combining with the technique of fuzzy mode identifying, data warehouse, cache etc. and we can perpetrate an on - line and synchronous purifying through analyzing the text and picture showing in the pages of network. finally, we choose sql server 2000 to design the url database and delphi, wingate as the tool for system development to develop an efficient system of information purifying which can keep the network consumer especially young student apart from the intrusion of unfriendly information and make the environment of network pure and fine

    本文首先探討了該系統中的信息「凈化」模型，提出了模型中的模糊集及隸屬函數的構造方法；然後分析了傳統的信息「凈化」技術及其優缺點，結合模糊模式識別、數據倉庫、高速緩存等技術對傳統的信息「凈化」技術進行了改進，改進后的信息「凈化」技術可通過分析正在顯示中的網頁文字、圖片內容，做即時、同步性的網頁內容篩選；最後，利用sqlserver2000設計了url數據庫，選擇delphi 、 wingate作為系統開發工摘要具，設計開發了一種高效的網路「凈化」器，使網路用戶尤其是青少年學生遠離非友善信息的侵擾，讓網路環境更加純凈、美好。
  6. In order to decrease the over - adjusting in temperature and transaction time, a multi - model selector was provided to different scenarios of ascending temperature to make this system be simulated under simulink ' s circumstances. the result of simulation demonstrated that the effect of the system temperature control with model selector is superior to that of the system with pid controller or with pure lag compensation

    為了進一步降低滲氮爐到溫前的溫度超調量及過渡時間，又提出用一個模式控制器來進行多種升溫方式的選擇並在simulink環境中對帶有模式控制器的溫控系統進行了模擬實現，模擬結果表明帶模式控制器的滲氮爐溫控系統的控溫效果又要優于帶純滯后補償的pid控制系統。
  7. In this disseration the author researched the testing of gsm mobile telephone of the wireless instrument test and carried out it. the work that i shoud do is acquire the testing content 、 standard and method of test of the gsm mobile telephone, then write the driver program of the cmu200. first acquaint the communication system of gsm ; second introuced and analysized the technology of the software and hardware of control the programmable instrument, which include ieee 488 ( gpib ) standard bus 、 scpi ( standard commands for programmable ) and visa ( virtual instrument system architecture ) ; third reaserach the technology of software, it employs visual c + + 6. 0 as application development platform because of its powerful function, universality and programming and employs com module because of its characteristic 、 superiority ; the last ascertain the testing item and its standard 、 mehtod through searching the principle of gsm mobile and its testing criterion and select the programble instrment for testing according to the mobile telephone demands, which include cmu200 ( universal radio communication tester ) 、 e4445a ( spectrum analyzer ) 、 e4438c ( signal generator ), all of this build the platform of testing. i realize the automatic testing of gsm mobile telephone by using com module and visa 、 scpi

    論文中首先了解了gsm通信系統及其關鍵技術;再者研究分析了可編程儀器控制的軟硬體技術，包括ieee488 （ gpib ）標準總線、 scpi （ standardcommandsforprogrammableinstruments可編程儀器標準命令）和visa （ virtualinstrumentsystemarchitecture虛擬儀器軟體架構）為對可編程儀器進行驅動編程打下基礎;第三步研究了軟體實現技術，對組件的優勢和com的特點進行了分析確定採用com組件技術來完成驅動模塊;最後根據移動臺測試要求選擇可編程測量儀器cmu200綜測儀、 e4445a頻譜儀、 e4438c信號源和一臺測量控制計算機搭建起了測試平臺，研讀可編程儀器cmu200綜測儀的scpi命令和visa （虛擬儀器軟體架構） ，根據gsm移動臺測試方法在vc開發平臺下採用com組件形式完成對cmu200的驅動編程從而實現對gsm移動臺的自動測試。
  8. Hydraulic structures, velometers, weirs, and flumes are used to gauge water in many irrigation districts. the fundamental principles and suitable conditions of these water metering methods are introduced in this paper. the main problems in the development of water metering instruments and facilities as well as main causes of difficulty in popularization of the methods in irrigation districts are analysed. it is suggested that selection and construction of water metering facilities should be combined with canal lining in irrigation districts. it is also pointed out that for realization of automation of water metering it is necessary to develop and popularize portable and stationary water metering instruments step by step based on economic development levels in irrigation districts

    介紹利用水工建築物、流速儀、堰、槽進行量水的基本原理及各自適用條件.從量水儀器、設施的性能、價格及灌區經濟發展水平等方面，分析目前在灌區量水儀器、設施的開發研製方面存在的主要問題，以及灌區量水難以普及的主要原因.提出應結合灌區渠道防滲工程建設，合理選擇和建設量水設施，並根據灌區經濟發展水平，分步驟研製和推廣便攜式或固定式量水儀器，最終實現灌區量水自動化的灌區量水實施方案
  9. If the process controller was in automatic scroll mode at the time of the changeover to " manual ", it is preferable to select the " run / stop " functin in order to stop the time base and set the reference value, since in the event of an automatic restart it is easier to advance the program than reverse it if it has gone too far during the manual procedure

    如轉換為「手動」模式時，工序控制器處于自動滾動狀態，則最好選擇「運行/停止」功能來停止時基並設置參考值，因為如果出現自動重啟，而在手動模式中已進行了很多步驟地話，則前進此程序要比後退容易得多。
  10. Based on the simulation results, the key techniques for the design of turbo codes, including the choice of component codes, the design of interleaver, trellis termination schemes and puncturing methods, are discussed deeply. by measuring the statistical characteristic of extrinsic information from component decoders, new iterative stopping criteria and snr estimation updator are devised. also, it is used to implement synchronization of carrier phase

    本文首先對turbo碼的基本編譯碼原理進行分析，在模擬結果的基礎上對turbo碼設計中的分量碼選擇、交織器設計、編碼器狀態歸零方案以及刪余方式等部分關鍵問題進行探討；通過考察外部信息的統計特性，設計了新的迭代停止準則和snr估計更新器，並利用外部信息實現串聯載波相位同步；最後對turbo均衡進行簡要分析。
  11. Background is high resolution moving picture. the working principle is like midi karaoke player. but the defect of midi is obvious, midi music is pure musical instruments play combination, expression ability be got restriction. now, with the advance of technology, will use the form of mp3 lyric karaoke songs to replace the form of midi, the song files playing have realized original sing, to improve the amusement of karaoke. make mtv sing more to be fill with expression, another, the price is cheap, below with midi karaoke player product of same class. becase support cd vcd dvd jpeg mp3 mpeg4 disc form moreover, so apply extensively

    這款點歌機主要的特點是支持mp3走字字幕格式的mtv歌曲文件，背景是連續滾動播放的高畫質視頻，類似於midi點歌機的工作原理，但是midi的缺陷是現而易見的，它的音樂是純樂器音符的演奏組合，表現能力就受到了限制，隨著技術的進步，用mp3走字的方式來替代midi走字的方式演義卡拉ok歌曲，歌曲文件的播放就實現了原聲原唱的要求，大大提高了卡拉ok的娛樂性，使mtv演唱更富有表現力，另外，性價比也較突出，價格總體要低於同檔次的midi點歌機產品，由於同時兼容普通cd vcd dvd jpeg mp3 mpeg4碟片的播放，具有廣泛的適用性，所以是家用娛樂設備的不二選擇。
  12. It is untransferrable and can indicate a validity period. the integration of distributed safety service and products like microsoft website server provides commercial service on a metering or duration rate basis, and in - cut advertisements based on user parameters selected or location

    分散式安全服務和與像微軟站點服務器這樣的產品的進一步集成，提供了按次數計費和按時間計費的商業服務，以及基於最終用戶參數選擇或者位置的個性化廣告插播。
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