時間寬度調制 的英文怎麼說

中文拼音 [shíjiānkuāndùdiàozhì]
時間寬度調制 英文
duration time modulation
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 間 : 間Ⅰ名詞1 （中間） between; among 2 （一定的空間或時間里） with a definite time or space 3 （一間...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 調 : Ⅰ動詞1 （配合得均勻合適） harmonize; suit well; fit in perfectly 2 （使配合得均勻合適） mix; adju...
  • 制 : Ⅰ動詞1 （製造） make; manufacture 2 （擬訂; 規定） draw up; establish 3 （用強力約束; 限定; 管束...
  • 時間 : time; hour; 北京時間十九點整19 hours beijing time; 上課時間school hours; 時間與空間 time and spac...
  1. About 178 guestrooms, fashion and simple design. all bed clothes adopt four - star standard, with broadband free, and wiht computer in some rooms. in addition, hotels have also set up the infrared ray burglary - resisting system, monitoring system of the tv, automatic fire warning system and the security patrol systems of 24 hours, in order to ensure the safety of guest. it is the ideal dwelling where the travelling businessman of the north and south

    酒店擁有178間客房，房間設計時尚簡約匠心獨具為您營造出浪漫滿屋的情調氛圍，床上用品全部採用四星級標準，全部房間免費寬頻上網，部分房間配備電腦，另外，酒店還設置了紅外線防盜系統電視監控系統自動火災報警系統以及24小時的安全巡邏制度，以確保客人的安全，是南北商旅在蓉下榻的理想居所。
  2. We should attach more importance to following channels at present time : broaden monetary market function ; perfect stock mortgage loan ; develop investment institute ; explore investment banking business, including investment funds business channel, insurance business channel and security business channel ; make financial organization renovation. following policy suggestions should be applied : 1 ) perfect the policy environment ; 2 ) treat the problem rationally ; 3 ) implement financial mixed operation system in due time ; 4 ) foster financial market ; 5 ) enhance external supervision ; 6 ) deepen the construction of commercial banks ; 7 ) introduce bank capital into stock market in stages

    貨幣市場和資本市場的不協調發展使證券機構出現制度外與體制外融資或違規操作，必須在兩個市場間建立資金和信息對流的寬敞通道，在路徑設計上，當前應擴展同業拆借市場、國債回購市場等貨幣市場渠道功能;完善股票質押貸款，及時推出非券商股票質押貸款，並注重風險防範;大力發展養老基金、保險公司、信託基金等機構投資者，吸收銀行資金間接入市;拓展投資銀行業務，包括基金、保險業務渠道、券商業務渠道、公司業務渠道;設立證券金融公司或金融控股集團，進行組織制度創新。
  3. There are five parts are as follows : in part one, the concept of switching function is introduced first to establish the nonlinear mathematical model of the induction motor variable frequency speed adjustment system which is fed by a sine pulse width modulated ( spwm ) inverter and takes the effect of the main magnetic circuit saturation into consideration, then the low frequency oscillation of the system is simulated according to the model. next, from the view point of energy conversion of the inverter - induction system, a criterion for the low frequency oscillation is proposed to determine whether the system is in low frequency oscillation which is judged by whether the interval of the negative current component of the inverter input current is more than 1 / fc ( fc is the carrier wave frequency of the inverter ) or not

    首先引入開關函數概念，建立了正弦脈寬調制（ spwm ）逆變器供電異步電動機，考慮主磁路飽和時的變頻調速系統整體數學模型，模擬系統的低頻振蕩；其次從逆變器-異步電動機系統能量轉換角度出發，提出通過檢測逆變器輸入電流中負電流的間隔時間是否大於1 / f _ c （ f _ c為逆變器載波頻率）來判定系統是否出現低頻振蕩；最後的實驗結果驗證了系統低頻振蕩建模和判據的實用性和正確性。
  4. The tests of e - o applications by our flux ktp has been realized, the results showed : optical waveguides fabricated by using an ion - exchange process, which have an exchange - ion concentration depth profile and refractive - index profile, is close to a complementary error - function distribution, optical homogeneity and device thermal stability is much better. amplitude modulation switch formed by our flux ktp has the contrast ratio of 150 : 1 and insert loss is 2. 5 % at 1064 nm. high quality optical pulse with 1 ns width was cut successfully by using an e - o modulator from a laser pulse with 50 ns width, this modulator had run for three years, and the crystal did n ' t blackened, it showed our low conductivity flux ktp can endure high modulation voltage for a very long time

    Ktp晶體的電光應用試驗表明：用離子交換法製作的電光波導，其離子交換濃度、折射率變化符合餘弦誤差函數，光學均勻性以及器件的溫度穩定性較好；製作的強度調制電光開關，消光比為150 ： 1 ，對1064nm激光的插入損耗為2 . 5 ；製作的電光調制器用於激光脈沖整形試驗，從脈沖寬度50ns的激光脈沖削出脈寬1ns的高質量光脈沖，該電光開關經過長達三年多的使用，沒有出現晶體變黑現象，說明本實驗的低電導率ktp晶體能夠耐受長時間的調制電壓。
  5. In this paper, researching and producing on current waveform control system of inverter carbon dioxide welding machine is given. the overall plan, the design of hardware structure, the programming and debugging of software is described in detail. the bang - bang and alterable structure discrete pid synthetic control algorithm are used to modulate the width of pwm signal in real time, to acquire the fiat character by driving and controlling the opening and shutting time of igbt, the technology of " double impulse " is adopted to realize electric current waveform control

    本文介紹了逆變波形控制co _ 2焊機控制系統的研製，詳細闡述了總體方案的制定、硬體研製及軟體的編寫與調試，採用變結構、離散型pid + bang - bang復合控制演算法、實時調節輸出pwm信號的脈沖寬度，驅動控制用於逆變的大功率開關管igbt的開通與關斷時間，獲得逆變焊機平外特性。
  6. 22 paired inferior collicular neurons were obtained in the experiment. the neurons were recorded in the depth of 198 - 1254 u m ( 544. 59 ? 72. 37 n m, m + sd ), and their bfs were 11. 25 - 59. 29 khz ( 26. 77 + 9. 95 khz, m ? d ) : the minimum thresholds ( mts ) werelo - 66 db spl ( 38. 14 ? 14. 39 khz, m + sd ) ; the latencies were 4. 0 - 16. 0 ms ( 8. 19 + 3. 14 ms, m + sd ) ; the best intervals between paired sound pulses were 0. 01 - 28. 71 ms ( 3. 93 + 2. 52 ms, m ? d ) 0 the results showed : l ) there were interactions between the neurons in the iso - frequency lamina and hetero - frequency lamina which included mutual inhibition ( 18 / 22, 81. 8 % ) and mutual facilitation ( 4 / 22, 18. 2 % ), and the mutual inhibition in iso - frequency lamina was stronger than that in hetero - frequency lamina ; 2 ) the mutual inhibition decreased with sound level increasing ( p < 0. 001, anova ) ; 3 ) the analysis of the inhibition of discharge rate at lodb above mt showed that the inhibition increased when the paired neurons " bfs difference decreased ( r = - 0. 545, p = 0. 0006 ) ; 4 ) the mutual inhibition of paired neurons can sharpen the frequency tuning and the effect increased when the frequency was away from the bf ; 5 ) the changes in q10, q30 decreased with bfs difference of the paired neurons increasing ; 6 ) the mutual facilitation between paired neurons not only increased discharge rate, but also widened the frequency tuning, i. e., increased response frequency

    結果表明： 1 ）同頻層神經元之間或者非同頻層之間神經元之間存在相互作用，這種作用既有相互抑制（ 18對，佔81 . 8 ） ，也有相互易化（ 4對，佔18 . 2 ） ，且同頻層神經元之間的相互抑制作用較非同頻層神經元之間的相互抑制作用要強； 2 ）神經元對低刺激強度反應時，所受到的相互抑制作用較強，隨著聲刺激強度加大，抑制作用逐步降低（ p 0 . 001 ， anova ） ； 3 ）對閾上10db放電率抑制百分比進行的分析顯示，配對神經元之間的最佳頻率差越小，相互抑制作用越強（ r = - 0 . 545 ， p = 0 . 0006 ） ； 4 ）配對神經元之間通過相互抑制作用可表kx碩士學位論文waiaster 』 sthesis現出調諧銳化作用，該作用的效率與頻率有關， bf處的銳化作用較低，偏離bf時其銳化作用逐步加強； 5 ）頻率銳化作用的效率與bf差有關，隨著配對神經元之間的bf差擴亢q10 ， q30值的變化逐漸減小，其變化百分比與配對神經元之間的頻率差存在明顯相關； 6 ）配對神經元之間的相互易化作用不僅表現在放電率增加上，也表現在頻率調諧曲線的擴寬，即頻率響應范圍擴大。
  7. If we hope to allocate the bandwidth balancely between unresponsive and responsive flows with a fcfs scheduler, red - cap ( red with control by advance probabilities ) algorithm in chapter iii is a condidate

    如果希望在採用fcfs調度時，利用緩存管理技術在響應流與非響應流之間較公平地分配帶寬，可以採用本文第三章提出的red - cap （帶有先遣概率控制的隨機早期檢測）演算法。
  8. In order to resolve the issue that the bandwidth of ip control gateway ( ipcg ) isn ’ t enough to forward packets, this thesis proposes the ipcg cluster based on time series prediction, implements the load balancing algorithm which is based on time series prediction and the technique of load balancing which is based on netfilter and policy routing

    為了解決ip控制網關（ ipcg ）帶寬不足的問題，本文提出了基於時間序列預測的ipcg集群，實現了基於時間序列預測的負載均衡調度演算法以及基於netfilter和策略路由的負載均衡技術。
  9. Furthermore, this paper exploringly studies an 802. 1 la high - speed wlan with the 54mbps data rate, and presents a sort of time synchronization and frequency offset estimation method based on the frequency domain auto - correlation of the unique preamble training sequence of 802. 11 plcp frame ; the method have the high time precision, the wide frequency estimat ion range and short convergence process ; and moreover, it can applied to other frame communication system

    另外本文還對最高傳輸速率為54mbps的802 . 11a高速無線局域網系統進行了探索性研究，討論了ofdm調制技術在無線局域網中的應用；結合802 . 11a物理層數據幀結構特點，提出了一種基於前導訓練符號序列的頻域自相關時間和頻率同步方法，此方法具有定時精度高、頻偏估計范圍寬和同步建立迅速等特點，也適合於其它幀通信應用場合。
  10. On the base of above all, the article puts the exchange intervene to the whole of internal and external economic balance to discuss the harmony between exchange rate policy and internal monetary and financial policy, and makes the conclusion that our central bank should widen the range of exchange rate waving, loose the exchange control generally, devalue the rmb to cooperate the internal monetary and financial policy. as to external economy, the author thinks our central bank should enhance the cooperation with the international economy, and describes the relationship between the exchange intervention and our country ' s join in wto. the relationship between the exchange intervention and the opening of our country ' s capital item

    在此基礎上，文章將央行外匯干預置於一國經濟內外均衡的統一整體中，討論了央行外匯干預的匯率政策與國內貨幣、財政政策之間的協調，指出我國應放寬匯率波動區域、逐步放鬆外匯管制，適時進行本幣貶值以配合擴張的財政政策和適度寬松的貨幣政策解決我國目前的經濟問題；對外，文章指出央行干預外匯應加強與國際經濟的合作，並討論了外匯干預和我國加入wto及資本項目開放的關系。
  11. Because of its excellent electro - optic effect, very short electro - optical response time, and wide transparent wavelength range, linbo _ 3 material meet the demands of low - loss, low drive voltage, high - speed and wide - band intensity modulator

    由於linbo _ 3材料具有良好的電光效應、很短的電光響應時間、較寬的透明波長范圍，因而適合於制低損耗、低電壓、高速寬帶強度調制器。
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