有效頻次 的英文怎麼說

中文拼音 [yǒuxiàobīncì]
有效頻次 英文
effective frequency
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 次 : Ⅰ名詞1 （次序; 等第） order; sequence 2 [書面語] （出外遠行時停留的處所） stopping place on a jou...
  • 有效 : effective; valid; efficacious
  1. The traditional media ' s audience rate and the frequent reading rate is hard to be accurately counted, the propaganda effect is more difficult to weigh, but, the handle advertisement media, through the traffic operation ticket statistics, can calculated the propaganda target and audience frequency data to the concrete number

    傳統媒體的收視率、收聽率、經常閱讀率均很難有準確的統計數據，宣傳效果更難衡量，而拉手廣告媒介則通過交通運營車票的統計，可以將宣傳對象、受眾頻次的數據精確到具體的數字。
  2. Secondly, according to the character of this kind of harmonic, the solutions of power filter are deeply analyzed and an optimized topology for series connected hybrid power filter is obtained. by pwm technique, midfrequency transformer and the principle of the magnetomotive force ( mmf ) compensation, the problem to the transfer of the low - frequency harmonic power compensatory signal in the series apf is solved, in technique

    其次，針對acem系統特有的「電源諧波」特性，深入分析了濾波器方案，得到了一種適用於acem系統諧波抑制的串聯混合型有源電力濾波器優化拓撲結構，並採用了pwm調制技術、中頻注入變壓器和磁勢補償原理有效地解決了串聯apf中低頻諧波功率補償信號傳輸的難題。
  3. The modified traveling wave monopole model is employed in simulating the electron beam in crt of computer vdu. meanwhile acceleration fields of the electron beam are studied in details and its expression given for the first time with measured results. a novel analyzing method is proposed to study the spectrum of electromagnetic information leakage based on the viewpoint of field point, which has been verified effective by experiments

    採用經修正的行波單極子模型模擬計算機陰極射線管顯示器電子束，並詳細研究了電子束的加速場，首次給出了其計算公式和實驗測試結果；還提出了一種新的從場點出發的信息電磁泄漏頻譜分析方法，實驗證明了其有效性； 3
  4. For the leakage often occured on condenser brass pipe of hanchuan power plant, using differential inner insert detecting coil the on - line multi - frequency eddy current check technology effectively restrains interferance source signal from support board, etc, improves measuring sensitivity and the measuring result gets more reliable

    摘要針對漢川電廠凝汽器銅管在運行中多次發生泄漏，利用差分內插式檢測線圈，通過多頻渦流檢測技術對凝汽器進行渦流在役檢測，有效地抑制了支撐板等干擾源信號，提高了檢測靈敏度，使得檢測結果更可靠。
  5. The potential applications of amr include both civil and military communication, especially non - cooperative communications and communication confrontation, such as identifying signals, supervising signals, distinguishing interference, electronic confrontation, analyzing military threat, etc. on the basis of our analysis to the existing research on feature abstraction, the related feature abstraction methods are optimized in this paper, resulting several effective methods such as the feature abstraction based on transformation domain, stepped voltage level analysis, normalized carrier - free spectral energy analysis, squared signal and fourth powered signal analysis, etc. both the decision theory based on recognition algorithms and the artificial neural network ( ann ) based on recognition algorithms is analyzed, and the former is selected as it is more appropriate for this research

    調制類型的自動識別廣泛應用於民用通信與軍用通信，尤其是對于非合作性通信、通信對抗，比如：信號確認、信號監控、干擾辨識、電子對抗、軟體無線電、電子救援、通信對抗、軍事威脅分析等。本論文在分析現有研究的基礎上，借鑒了已有的特徵提取方法，對相關調制類型特徵提取方法進行了優化，使用了一些有效的方法，如基於變換域特徵提取方法、梯層電平分析方法、剔除載波后的歸一化頻域能量分析方法、信號平方后的頻譜分析方法、信號四次方后的頻譜分析方法等。通過對基於決策理論和基於人工神經網路兩種識別演算法進行分析，本論文選擇了較適合的基於決策理論的識別演算法。
  6. With the 60ml injector, drawing distance being 6cm and drawing times being 40 can perform the greatest effect

    對於60ml的注射管而言，抽拉距離確定在6cm左右，抽拉次數40次對提高水稻愈傷組織的轉化頻率最為有效。
  7. The over - grazing of india ' s spectrum is already beginning to show in dropped calls and patchy reception

    在印度，過度開發無線頻譜已經開始導致有效通話次數減少，信號接收不連貫等現象。
  8. A popular solution toimprove the speed and scalability of the association rule mining is todo the algorithm on a random sample instead of the entire database. buthow to effectively define and efficiently estimate the degree of errorwith respect to the outcome of the algorithm, and how to determine the samplesize needed are entangling researches until now. in this paper, an effective and efficient algorithm is given based on the pac probably approximate correct learning theory to measure and estimatesample error

    關聯規則挖掘作為數據挖掘的核心任務之一，由於其任務本身的復雜性通常需要多次整個掃描數據庫才能完成挖掘任務且頻繁模式可能產生組合爆炸，使得從原始的大規模數據集上抽取一部分樣本，在其上尋找用戶感興趣的近似規則成為目前提高演算法效率和可擴展性的一種簡單有效的現實可行方法之一。
  9. Its researching object is television advertisement and the aim can detect given television advertisement from the playing television programs, and the monitoring process is real - time. through the result the advertisement beginning time and ending time can be located, and the advertisement times can be known

    研究的切入點是電臺廣告，研究的目標是要在眾多的音頻電臺節目中快速、有效的檢出指定的幾個電臺廣告，通過監播確定其實際播出的時間、終止時間以及播出次數等。
  10. This is a frequent, simple - to - order and cost - effective way to transport goods to various cities in the mainland

    是項前往內地多個城市的貨物運輸服務班次頻密、預訂容易，而且經濟有效。
  11. In 1994, the ternpc got the only creative prize of agriculture science in the first ningxia patent exhibition, and the golden medal of the first agriculture science and technology achievement exhibition of china, held by the cstc chinese science and technique committee and shanxi province. in 1996, it was listed in the major plan of science and technique spreading by nstc

    總的來說，西部的生態環境特別是西北地方砍伐，水土流失，土地沙漠化的問題十分嚴重，由於生態環境惡化，造成湖泊乾涸，下遊河道斷流，土壤次生鹽化面積不斷擴大，沙塵暴頻繁增加，天然林場草場在面積退化，如果這些問題不能起到有效控制，環境的惡化很難逆轉，現有的綠州也很難利用。
  12. In the process of real - time video coding, it is valuable to reduce the checking times to 4 4 blocks

    有效減少4 4塊預測模式的判斷次數，在實時視頻編碼過程中很有價值。
  13. In hopes of quieting the criticism, bronze mustache issued a six - minute online video denying any affair with quiet moon, whom he is said to have met at a gathering of enthusiasts of the online game " world of warcraft. " at the same time, freezing blade has twice asked people to call off the attacks, even joining in the denials of an affair - all to no avail

    帶著平息批判的希望， "銅須"發布了一段六分鐘的在線視頻，否認了與"幽月兒"的任何戀愛事件，他說他們是由於都同是網路游戲"魔獸世界"的狂熱者才相遇的.與此同時， "鋒刃透骨寒"兩次要求人們停止攻擊，甚至加入了對這一事件的否認，但都沒有效果
  14. To achieve such a hierarchical structure mining, this paper proposed an efficient shot detection algorithm, developed a novel algorithm for measuring video shot similarity and adopt scene change detection ( scd ) to construct video scene based on color, texture and semantic similarity between shots

    摘要為了實現視頻層次結構挖掘，提出了一個有效的視頻鏡頭分割演算法和一種鏡頭相似性度量方法，然後根據鏡頭顏色、紋理和語義相似性採用場景邊界探測演算法構造視頻場景。
  15. The wavelet packet analysis applied in fault diagnosis system is studied in this thesis. using simulation fault data, uncalm and time difference vibration signal of sodium pump are decomposed on different levels and frequencies. to picked - up the eigenvectors reflecting different fault of sodium pump with availability, simulation results have shown its satisfaction in the identification

    對小波包分析應用於故障診斷進行了研究，利用模擬出來的故障數據，將快堆鈉泵非平穩時變振動信號分解到不同層次和不同頻帶上，有效地提取出反映鈉泵不同故障（狀態）的特徵向量，在識別中得到了滿意的結果。
  16. An efficient algorithm qais is proposed that uses the efficient method to reduce database access activity, and present a novel algorithm aiu based on this algorithm, it is fit for mining association rules and incremental updating. it is especially effective in vldb, mining long patterns, and high support. the perfermance of qais / aiu is verified on the basis of synthetic data, experiments show that the proposed algorithm can mine association rules more efficiently by not generating candidate itemsets and reducing the redundancy of frequent itemsets while generating association rules

    然而目前大多數挖掘關聯規則的演算法往往必需多次掃描事務數據庫才能達到要求的目標，這樣重復性的數據庫存取動作將會導致過多的執行時問浪費在i o動作上，另外在頻繁集生成規則時現有的演算法沒有考慮到規則的大量冗餘，為了解決這個問題本文提出了一個不需要生成候選集同時有效的去除生成規則時產生大量冗餘的演算法qais ，來提高關聯規則生成的速度，並且在此演算法基礎上提出了新穎的關聯規則增量更新演算法aiu ，通過應用合成數據驗證了qais aiu演算法的有效性，由試驗結果來看這個方法確實能更有效且準確地獲得事務數據庫的關聯規則，尤其適合挖掘超大數據庫中高支持度下長模式的挖掘。
  17. Comparing with the traditional phase - shifted laser range finder, the method could implement the ranging with multifrequency by using single modulated frequency. it could not only solve the contradiction of the range and the precision, but has high degree of accuracy and wide range, simplify the hardware design, and reduce the cost. this paper introduced the theory of phase distance measurement, analyzed various testing methods and expatiated the hardware and the software for the proposal system

    與傳統的相位法測距相比，本方法使用單調制頻率實現了多頻測距，有效地解決了相位法測距中測程與測量精度之間的矛盾，具有高精度、大量程、大噪聲容限的特點，而且簡化了硬體設計，降低了成本；其次在數據處理中採用數據加窗函數的方法，提高了方波信號的頻譜解析度，進而提高了測量的精度。
  18. A new method, which uses shaping circuit and programmable computer controller with appropriate software to measure frequency, is initially applied which overcomes the problems of low reliability and slow responding process of traditional frequency measurement unit, improves the reliability and dynamic quality of frequency measurement and expedites the responding speed effectively

    首次提出了一種由整形電路和可編程計算機控制器配以適當軟體完成頻率測量的方法，有效地解決了plc調速器測頻環節存在的可靠性差及響應速度慢的問題，提高了頻率測量的可靠性及動態品質。
  19. The circui t construct ion and the relevan t schemes of the realization of the circuit are also provided, simultaneously, the source of errors and the compensation methods are discussed. all of analysises, calculation results and simulations demonstrate that the methods presented in the paper are feasible, the algorithm is effective, the realization of circuit is simple, the procedures of the design are standard, the circuit is easy to be fabricated on a monolithic, and the system can be used for processing middle - high frequence signal and be applied in low - voltage, low - power and at high speed

    在此基礎上，本文首次提出了一種基於狀態空間對數域濾波器的一維連續小波變換實現方法、結構以及相關模塊電路實現的策略，並對該方法的誤差來源與補償措施進行了討論。論文中的理論分析與計算以及模擬結果表明，用對數域狀態空間濾波器實現一維連續小波變換的方法可行，演算法簡單、有效，電路實現簡單，設汁過程規整，易於單片集成，適合處理中、高頻信號並運用於低電壓、低功耗、高速的場合。
  20. Finally, some important conclusions were drawn, that is, using distributed pzt transducers, ultrasonic guided waves are generated and received in a pipe. usually, there are many different modes of guided wave propagating in the pipe and these modes are generally dispersive, the specific exciting signal of a harming windowed toneburst with a central frequency of 70khz for decreasing the effect of dispersion was selected. and guided wave are generated using 16 distributed pzt transducers in a circumferential direction for suppressing flexural modes

    首先，對當前本課題研究領域的進展作出綜述，並簡要介紹與超聲導波技術相關的理論基礎；其次，建立了一套有效的實驗裝置，在此實驗裝置基礎上，重點研究了採用分散式pzt傳感器在管中激勵和接收特定模態超聲導波的方法：根據在管狀波導中傳播的超聲波具有頻散現象及多模態特徵，選擇具有單一頻率的特定信號激勵超聲導波，使其頻散最小；同時採用分散式傳感器抑制不同模態的波型。
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