預計頻數 的英文怎麼說

中文拼音 [yùjìbīnshǔ]
預計頻數 英文
expected frequency
  • 預 : Ⅰ副詞（預先; 事先） in advance; beforehand Ⅱ動詞（參與） take part in
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 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...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 預計 : estimate; calculate in advance; expect
  1. Hi this thesis, the technique of detector array is used to obtain the location of anomalous infrasound, it is the basic of the study of prediction of earthquake. to derive useful information by using spectrum analysis on infrasonic signal. then combing with other methods a forecast could be made

    本課題主要是利用數字技術，採用用傳感器陣列計算異常次聲波波源的方位，這是今後預測震中位置研究的前提；並對次聲信號進行頻譜分析，提取有用的關于臨震次聲方面的信息，再結合其他的預報方法，作出準確的地震預報。
  2. When the frequency of signal is below to kilohertz quantitatively, the preactical test results of this system indicated that it is efficiency in signal process of biomedicine, automatic control, and audio etc. the purpose of design has been realized by the system ultimately

    實際測試結果表明，該系統對于處理khz數量級以內的生物醫學信號、自動化控制信號以及音頻信號的效果基本達到了預期的設計要求。
  3. Software - practice and experience, mar. 1994, 24 : 327 - 336. 13 han d, xiao c, zhou r et al. load shedding for window joins over data streams

    分別採用了窗口計數器預估數組和頻率數組來維護相應統計信息，並在實際中使用樹狀數組取代頻率數組以提高計算效率
  4. Intermodulation suppression for fh ( frequency hopping ) receiver is designed by selecting the intermediate frequencies and changing group of filters, local oscillation ( lo ) frequency, bandwidth of lo frequency under the condition that receiver configuration, sensitivity, dynamic range, instantaneous bandwidth and precision of frequency measurement are fixed

    摘要針對跳頻接收機的體制和靈敏度、動態范圍、瞬時工作帶寬、測頻精度等設計參數，通過改變預選器組成、本振頻率和本振帶寬，分析接收通道的中頻選取原則，以實現跳頻接收機的互調抑制設計。
  5. The system is composed of an medical microscopy, a video image sampling card, a computer system and software what we developed specially for this system. further more, it provides many powerful functions including pathologic image recording, image sampling, image processing, parameter measurement, result analysis, report creating, report printing and so on

    該系統集醫用顯微鏡、視頻圖像採集卡、計算機系統於一體，實現了從病理圖像記錄、採集、預處理到特徵參數測量、結果分析、報告生成、列印等一系列功能。
  6. Topics discussed included the progress in windshear alerting service, amendment 72 to icao annex 3, re - organization of airspace in the south china sea, the annual survey on services provided by the hong kong observatory, world area forecast system wafs transition matters, the launch of broadband amids and the progress on automatic dependent surveillance controller pilot data link communication ads cpdlc and aircraft meteorological data relay amdar. fig. 15 meeting on aviation weather services with air traffic management bureau, civil aviation administration of china, 12 november 2001, beijing

    會上討論多項議題，包括風切變警告服務的最新進展國際民用航空組織icao附件3須作出的第72號修訂中國南海空域的重組天文臺的周年服務意見調查世界航空區域預報系統wafs過渡事宜推出寬頻航空氣象資料發送系統amids ，以及自動從屬監視系統飛行員管制員數據鏈通訊ads cpdlc和飛機氣象數據下傳amdar計劃的最新進展。
  7. The article originated some conversion algorithms based on the data flow of multiplexing. it includes de - multiplexing ps, pretreating audio, disposing ps / ts system layer, calculate time information, controling stream output. the project describes the five parts of software system

    本文分析了轉碼設計中的時間信息、碼率等關鍵問題，提出了按碼流合成的數據流程進行轉碼的架構，實現了編碼演算法: ps流解復用、音頻預處理、 ps / ts的系統層處理、時間信息處理、碼流輸出控制共五個部分。
  8. The basic principle, main properties, typical parameters, technical characteristics and general situation of klystron are introduced. the electron beam prebunching in the modulated cavity and shift tube of relativistic klystron amplifer ( rka ) is studied analytically, a self - consistent equation of radiation generated by the prebunched electron beam in the radiation cavity is derived using the field method of particle ? wave interaction instead of the electrical circuit method, and in terms of it, the gain in the linear regime calculated, a field analysis method is proposed. the theory analysis shows that the characteristic parameters, such as resonance frequency, real part of gap - impedance, external quality fadtor in all kinds of klystron output circuits including single - beam, multi - beam, single - gap, multi - gap, single - beammulti - gap, multi - beam multi - gap klystron output circuit, can be calculated by the field analysis method

    本文系統的介紹了速調管的工作原理、主要特點、發展概況、主要性能指標和技術特點，解析的研究了電子束在相對論速調管放大器的調制腔和漂移管中的預群聚;用粒子波互作用的場方法導出了在輻射腔中預群聚電子束產生輻射的自洽方程，同時對線性區的增益進行了計算。理論分析表明，場分析法可用於計算單注單間隙、多注多間隙、單注多間隙和多注多間隙速調管輸出迴路的諧振頻率、間隙阻抗實部和外觀品質因數等特性參數。
  9. Third, mensurated the front axle ' s load - time history when truck was running on general tar - paved roads, mountainous roads and the proving ground enhancement roads, second sampled and pretreated to the load - time history with rpc software of mts corporation, acquired the relationship of the frequence of the mean and amplitude load, obtained the zero mean equivalent loads using goodman experiential fatigue equation, acquired the weibull distributing functions of equivalent loads of respective roads

    第三，測定了汽車前橋在一般瀝青公路、山區公路和試驗場強化試驗路面的載荷時間歷程。對載荷時間歷程進行了二次采樣和數據預處理。採用雨流計數法得到了各路面的載荷均、幅值的頻次關系，並根據goodman經驗疲勞公式，得到了零均值的等效載荷及相應的頻次。
  10. This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass, which distill the bio - oil in the domestic and international area, as well as the existing problems. this thesis primarily include following aspects : ( l ), by experimenting and measuring the energy ( heat value ) and the content of c, h, n chemical element of right 20 kinds of common biomass, on the base of the experimental result, and respectively established the biomass energy predict experiment formula with the element of h and c is from change, and passed the ro. os examination, which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ), proceeded the tg and dtg experimentation equal velocity ( 10 ? / min, 20 ? / min, 40 ? / min, 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples, according to the experimental data and arrhenius formula, we established the dynamics model of pyrolysis of, then, using the goast - redfern and p function, we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy, and established the every kind of dynamics model of pyrolysis of biomass, all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ), in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles, we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope, we concluded the l / d ratios usually is from 5. 0 to 6. 0, the average is 5. 3 ; ( 4 ), we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field, we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis, and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical, all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ), according to the above experiment result, synthesize to make use of the engineering the mechanics, engineering the material, machine the design to learn the principle, deduce, establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ), we gave the reactor ' s smallest cone angle certain, reactor cone wall strength design theory, the reactor production ability theory, the power design method and the critical rotation velocity theory

    本文較全面、系統地綜述了國內外生物質熱解液化制取生物燃油技術研究發展現狀及存在的問題，主要研究內容有： （ 1 ）實驗、測定了20種常見生物質的能量（發熱量）和c 、 h 、 n元素含量，根據實驗結果分別建立了以h和c為自變量的生物質能量預測經驗公式，並通過r _ （ 0 . 05 ）檢驗；為閃速熱解液化裝置能量轉化率計算和生物質能量利用率計算提供了依據和方便； （ 2 ）選擇了8種生物質試樣作了等加熱速率（ 10 min 、 20 min 、 40 min 、 60 min ）和恆溫加熱的tg和dtg實驗，根據實驗數據和阿倫尼烏斯公式建立了生物質熱解反應動力學微分方程，並採用goast - redfem積分法和p函數對其動力學參數進行了求解，解析出各種生物質的頻率因子和活化能參數，進而建立了各種生物質的熱解動力學模型，為科學確定反應器的閃速熱解工作溫度范圍及熱解反應動力學描述，提供了理論和依據； （ 3 ）為研究和確定不同尺度的生物質顆粒中心達到全熱解的時間，在體視顯微鏡下對不同粒度的生物質顆粒的長徑比進行了實驗觀察和測定，得出生物質的長徑比（ l d ）一般在5 . 0 6 . 0之間，平均為5 . 3的結果； （ 4 ）採用復雜溫度場傳熱學理論對生物質傳熱過程及充分熱解時間理論進行了研究，解析推導出了不同尺寸生物質顆粒中心溫度達到充分熱解溫度的時間（ t ） ，得出了理論推導的充分熱解時間與最大產油率的熱解時間相一致的結果，為閃速熱解反應器固相滯留時間設計和預測提供了理論依據； （ 5 ）根據上述實驗結果，綜合運用工程力學、工程材料、機械設計學原理，推導、建立了轉錐式閃速熱解反應器物料滯留時間（ ）與轉速（或頻率）合理匹配理論； （ 6 ）提出了轉錐式閃速熱解反應器的最小錐角設計、錐壁強度設計、生產能力設計理論和功率計算方法及臨界轉速理論等。
  11. In the paper, chapter 1 gives a comprehensive introduction of digital image compressing including its recent status, technical standards, classification in the world. chapter 2 introduces briefly the thought and ii procedure of vector quantization, describes lgb algorithm and vector quantization based on sofm neural network. chapter 3 discusses predictable coding in lossy and lossless aspects, analyzes adaptive predictable coding based on bp neural network, introduces the evaluation of algorithm on neural network in image compression. chapter 4 discusses the applications of mathematical transformation in image compression and does experiments related, analyzes the strategies of image coding in transformed domain. in chapter 5 images are decomposed and represented by wavelet transform, then discusses the characteristics and effects of wavelet functions in image compression, analyzes the wavelet coefficients after images are decomposed ; based on the theories and analyses in the prior chapters, the paper presents an image compression scheme and gives results. the test results shows that the image compression scheme is practical and helpful to map into the local content of images to get rid off redundancy, so that, it can require satisfactory results of image compression

    方案首先利用小波多分辨分析性質，對圖像進行小波分解，對分解后各子圖的小波系數進行了統計分析，針對各子圖的小波系數特點，對不同的子圖分別採用不同的壓縮方法，低頻子圖採用基於神經網路的自適應預測編碼，高頻子圖採用基於神經網路的矢量量化編碼，從而實現對圖像數據的壓縮處理。本論文第一章介紹了數字圖像壓縮處理的國內外當前的概況以及其技術標準和分類。在第二章，介紹了數字圖像的矢量量化技術的數學思想和過程，對lbg演算法和基於sofm神經網路的矢量量化進行了闡述、分析。
  12. In case of absence of a precision external reference, the ocxo frequency adjustment is carried out by means of the p1 potentiometer

    萬一一個精密度的外部參數預設， ocxo頻率調整依靠p1電位計來實行。
  13. The observatory will acquire a broadband seismograph to strengthen hong kong s capability to predict tsunami. data received by the seismograph will be used to determine the details of the movement of the earth s plates during an earthquake

    為了加強預測海嘯的能力，香港天文臺將購買一部寬頻地震儀，收到的數據可以用來計算地震時地殼錯動的仔細情況。
  14. However when the size of the platform is large, or it works in a wide frequency range, or the requirement of vibration control, it is urgent to choose the material ofplatform, arrange isolator and determine thedesign parameters of isolator for obtaining the expected effect of vibration isolation

    但是，如果平臺尺寸很大或是要求的工作頻段較寬或振動控制要求很嚴時，如何選擇平臺材料及布置隔振器，如何合理地確定隔振器的設計參數，使其達到預期的隔振效果，是一個亟需解決的問題。
  15. This paper bring out design method of inverse eigenvalue problem, which adapts to general structures with linear parameters, namely coefficients of all or partial elastic component and inertial component are treated as design parameters, for given some order natural frequency and corresponding vibrating mode, all of useable designing parameters will be got through solving a linear system of equations, thereby stiffness matrix and mass matrix of actual structure are constructed. this paper also discusses existence condition and unique of results

    提出了適用於具有線性參數的一般結構的逆特徵值問題的設計方法，即以系統的全部或部分的彈性元件與慣性元件的系數為設計參數，對于預先給定的若干階固有頻率及相應振型，通過求解一線性方程組即可確定全部實際可行的設計變量，從而構造出實際結構的剛度矩陣和質量矩陣，並論證了解的存在性與唯一性。
  16. In order to resolve the contradiction between real - time and arithmetic complex in the television tracking capture system, the paper designs the real - time target track processing system which is constructed by the high performance dsp chipset tms320c6416 as the core digital processor, the huge reprogrammable logic chipset cpld as the system logic control and the field reprogrammable array fpga as the image preprocessing chipset to sampled video digital image

    摘要為解決電視捕獲跟蹤瞄準系統中系統的實時性與演算法復雜性之間的矛盾，設計了以高性能的dsp晶元tms320c6416為核心處理器，結合大規模可編程邏輯器件cpld進行邏輯控制以及現場可編程門陣列fpga對採集的視頻數字圖像做預處理的實時目標識別跟蹤處理平臺。
  17. The real - time target track processing system is designed which is constructed by the high performance dsp chipset tms320c6416 as the core digital processor, the huge reprogrammable logic chipset cpld as the system logic control and the field reprogrammable array fpga as the image preprocessing chipset to sampled video digital image

    為了解決演算法復雜性及滿足工程實時性，設計了以高性能的dsp晶元tms320c6416為核心處理器，結合大規模可編程邏輯器件cpld進行邏輯控制以及現場可編程門陣列fpga對採集的視頻數字圖像做預處理的實時目標識別跟蹤處理平臺。
  18. This multifunctional product enables video music file editing, photo data readings edit, and more. furthermore, with the " nero digital codec, " hd resolution contents may also be stored on currently recordable dvd discs, where over 5 million approved devices using this format in europe are expected for shipment. likewise, compatible devices for shipment to the u. s. and japan in the 1st half of this year are expected

    這款新產品為多功能產品，可進行視頻音樂文件的編輯以及照片數據的瀏覽編輯等，另外，該公司開發的「 nero digital codec 」可將hd解析度的內容保存到當前的記錄型dvd上，在歐洲已有500萬臺可接受本格式認證的設備預定出廠，預計日本和美國也會在今年上半年推出對應產品。
  19. Whenever you have a reason to expect data skew in production data, you might want to reproduce data skew in your test data. first, store the estimated frequencies in a table

    每當您有理由期望在生產數據中出現數據傾斜時，您就可能需要在測試數據中再現數據傾斜，首先，在一個表中存儲預計頻率：
  20. At first, after the dynamic characteristics of the plane and the spatial supporting systems were studied, fore some steps fixed frequency and shape of vibration were gained. secondly, several design parameters which influence the dynamic characteristics of this kind system were discussed, including pre - tension value in the cable, cross - section of the cable, cross - section of steel - bar and form change. some applied decisions were found

    首先，對平面和空間索桁支承體系的自振特性進行研究，得到體系的前幾階固有頻率和振型形式；進而探討了索的預拉力、拉索截面面積、撐桿截面面積、形狀改變（撐桿長度l ）等主要設計參數對體系自振特性的影響，得出了一些有益的結論，為體系設計和施工提供意見和依據；最後，對體系的風振特性進行了分析，用幕墻風荷載規范對幾種索桁支承體系形式進行風荷載計算。
分享友人
分享到 Line

分享到臉書