發作頻率 的英文怎麼說

中文拼音 [fāzuòbīnlǜ]
發作頻率 英文
seizure frequency
  • 發 : 名詞（頭發） hair
  • 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...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 發作 : 1 （突發） break out; show effect 2 （發脾氣） have a fit of anger; lose one s temper; flare up 3...
  • 頻率 : frequency; rate
  1. Based on the real situation of submarine and antisubmarine warfare ( asw ), according to the classical design theory of transducer or transducer array, a sonar will be researched and made, which has the feature of more wider bandwidth, more lower operating frequency, more lager radiation acoustic power, more farther operating distance, more higher researching efficiency and more higher directive accuracy

    本文根據現代潛戰和反潛戰（ asw ）的實際情況，按照經典的換能器和基陣的設計理論，研製聲吶，旨在擴展其頻帶寬度、降低其工作頻率、增大其發射功率、擴大其作用距離以及提高其搜索效率和定向準確度。
  2. Many bats emit an echolocation call that contains a narrow frequency range and then analyze returning echoes to navigate and to detect prey

    許多蝙蝠會發出頻率?圍狹窄的回聲定位呼叫，然後分析回聲來作導航與偵測獵物。
  3. Even under the condition that the filling pressure was up to 1. 5mpa, the onset temperature was only 237 ?. with the filling nitrogen of 0. 9 mpa, the maximal pressure ratio reaches 1. 21 and the operation frequency is 25 hz. the ratio of the harmonic wave of the engine was very little and the frequency jumping was not found in present experiments

    在充氣壓力為0 . 9mpa的條件下，該熱聲發動機最大壓比可達1 . 21 ，遠高於駐波型熱聲發動機，實驗結果和理論分析均表明系統的工作頻率為25hz左右，實驗裝置的諧波比例非常小，且也沒發現頻率跳變等現象。
  4. It is predicted that half of the alpine glaciers could disappear by the end of this century ; droughts and floods will occur more frequently in latin america ; vital crop yields will be reduced in many places ; malaria and dengue fever will spread in north america ; and climate changes in the polar regions will be the most extreme of the whole planet

    至於歐洲方面，南歐大概會變得更易鬧旱災，其他地區的洪患發生頻率將有可能增加。到本世紀末，阿爾卑斯山的冰河可能會消失一半。拉丁美洲旱澇將更為頻繁，許多地區的重要作物產量或將減少。
  5. The features of the new type of integration scheme can be described as follow : high division and easy debug are achieved in the scheme ; accumulative total is used, and the discord of integer part and decimal part are avoided in the scheme ; it can divide as well as detect direction ; it can integrate the counter into isp device and then evaluate the maxim frequency of the counter ; it also integrate square wave and some logic devices into isp device, and then improve integration, reliability, stability ; and have the character of software designation instead of hardware designation and in - system programming, and it becomes very easy to modify the circuit and to extend the function

    新型的集成化設計方案具有以下特點：細分數高而且調整方便；採用累積計數，避免大小數分別計數的不協調；細分同時完成辨向；可以在isp器件內完成計數功能，從而提高了計數器的最高工作頻率；同時將方波發生器和一些外圍的數字電路集成在一片isp器件內，提高了系統的集成度，性能可靠穩定；具有硬體設計軟體化及在系統可編程的特點，便於電路的修改和功能的擴展。
  6. With the development of electronic technology in the field of high - frequency and high - power, power mosfet is gradually enhancing its important status in semiconductor apparatus and is being widely applied in power converters as switch. with the increasing of the operating frequency ( > 200khz ), the energy loss caused by parasitic capacitance will affect the efficiency of power transforming in converters. especially in the applications of high frequency power supply using mosfet as main devices ( the unit of frequency is mhz ), the energy loss caused by the switch process will badly affect its efficiency

    隨著電力電子技術進一步向高頻的大功率用電領域發展，功率mosfet在各種電力半導體器件中的重要地位日益顯著，使用功率mosfet作為開關器件的功率轉換電路也日益增多，但隨著器件開關頻率的提高（大於200khz ） ，由器件極間電容引起的能量損耗將會影響到功率轉換電路的能量傳輸效率，特別是在以mosfet作為開關器件的高頻感應加熱電源中（工作頻率可達兆赫） ， mosfet在開關過程中的能量損耗嚴重影響到電源的效率，因此如何減小開關器件的損耗提高高頻功率轉換線路的效率成為電力電子技術領域的重要研究課題之一。
  7. The output module can set the interval of the laser pulse to change from 50ns to < wp = 5 > 3. 2ms in steps of 50ns, and the frequency from 500hz to 100khz in steps of 1hz. it can control well the spcm and the input module

    輸出系統能控制單光子發射時間在50ns到3 . 2ms之間步進50ns可調，發射頻率在500hz到100khz之間步進1hz可調，並能很好地控制單光子探測器和數據採集系統的工作。
  8. Then the difference between the output of the trained neural networks and that of the actual system is used as a residual, which detects the sensor fault. the diagnosis can then be performed by further exploiting the information provided from the residual signals according to certain rules introduced in detail in the thesis. simulating results show that the method can isolate any fault of the sensors in any input types and normal work frequencies

    模擬結果表明，基於神經網路觀測器的故障診斷方法在系統正常工作頻率范圍之內，不受系統輸入類型和故障的類型的影響，只要故障對系統的特性發生影響（系統參數漂移3 ） ，通過神經網路觀測器的殘差判別函數可以診斷出故障。
  9. It is found that the work frequency is decreased but the space between work modes is enlarged a little with the inner slotted in rbwo with coaxial structure. 2. rbwo with partial inner slotted structure is designed and simulated, it is found that the work frequency is decreased and the space among modes is enlarged well with the inner slotted in rbwo with partial structure

    2 .對偏心返波管進行了模擬，研究了偏心返波管加內開槽后模式之間間隔和工作頻率的變化情況;發現加槽後偏心返波管的工作頻率有所降低，偏心返波管模式間隔增大較為明顯。
  10. It is found that there is a competition among the modes such as tm _ ( 01 ), tm _ ( 11 ) and tm _ ( 21 ) because of their similar work frequency in the experiment of rbwo with a coaxial structure, then tm _ ( 01 ) mode couldn ’ t work steadily. after shaping rectangular slot in the inner - conductor, the space between modes is enlarged, tm _ ( 01 ) mode would work steadily

    在同軸返波管的實驗中發現:模式tm _ （ 01 ） ， tm _ （ 11 ）以及tm _ （ 21 ）的工作頻率十分接近，存在模式競爭問題，使得tm _ （ 01 ）不能成為穩定的工作模式，但在同軸返波管內導體加矩形開槽后，發現模式之間的間隔增大，從而使tm _ （ 01 ）成為穩定的工作模式。
  11. The millimeter wave diplexers used in the ka - band satellite communications are investigated. these diplexers are of high working frequency, narrow passband and high selectivity, which demands the channel filters good performance

    所研究的毫米波雙工器工作頻率高（接近40ghz ） ，收發通道帶寬窄、接收頻率和發射頻率間隔很小。
  12. Gyrotron is a new and important type of electrical microwave device from 50th years of last century to current. as a high power resource, it can produce and amplify milimeter and submilimeter - wave radiation at high frequency

    迴旋管是20世紀50年代後期發展起來的一類新型微波電子器件，它能在毫米甚至亞毫米波段產生或者通過放大得到大功率微波輻射，並具有相當高的工作頻率。
  13. From theoretical analysis, we know the existing demodulation methods have limitations as following : one is that the subtraction of the two signals frequencies will display as the result of demodulation when we demodulate two time - domain adding signals without modulating information ( fault information ) ; the other one is that aliasing phenomenon will occur as a result of getting absolute value, detection or square in the process of generalized demodulation analysis, such phenomenon will result in some superfluous frequency composition on the frequency spectrum, which will puzzle the detec tion of mechanical vibration. if the sampling frequency is selected from a suitable range, the aliasing phenomenon will be avoided ; the last one is that aliasing frequencies will be produced in zoom demodulation analysis because this algorithm cannot employ digital low - pass filtering to avert the folding frequencies of higher harmonics in the process of zoom sub - sampling

    現有的解調分析方法存在以下三種局限性：將不包括調制信息（故障信息）的兩時域相加信號，也以其頻率之差作為解調信號而解出；廣義檢波濾波解調分析中，由於取絕對值、檢波或平方過程可能產生混頻效應，在解調譜中表現為無法分析的頻率成分，並由此推導出避免這種混頻現象的采樣頻率的選取范圍，從根本上避免此類誤診斷的產生；幾種細化解調分析新演算法中，因為無法在細化分析的選抽時進行數字低通濾波，有可能會出現調制頻率的高次諧波成分發生頻率混疊而反折到低頻部分的現象。
  14. The system have follow characteristic : we used tlc5540 for digital converter, the maximum conversion rate of the tlc5540 is at least 40 msps ( mega samples per second ), and the typical analog input bandwidth is more than 75mhz. the design between tlc5540 and tms320vc33 interface directly

    該系統主要特點如下。我們採用的a d轉換器最高工作頻率可到40mhz 。 tms320vc33和a d之間直接介面，最大限度地發揮了a d轉換器的能力。
  15. Over - the - horizon radar ’ s beam - frequency is high frequency band and its wavelength is so long that the annate ’ s characters are very complicated when applicated on the ship. the character of coupling between cells and the environment must be measured to compensate in the radar signal process step. the ship - based over - the - horizon radar uses cfa ( crossed field antenna ) as array antennas ’ cell

    艦載超視距雷達使用高頻信號作為發射頻率，其波長較長，在艦船有限的空間內，陣列天線的陣元之間的耦合與陣元與背景之間耦合都十分嚴重，必須測量陣列天線通道的幅相一致性，作為雷達信號處理的補償參數。
  16. Above all, the study status and trends in development of rfid antenna are summarized in this thesis. the basic composition and operational principle of rfid system are discussed systematically as well as the division of the fields of antenna and the coupled modes of energy capacity. and the operating frequency and typical application of rfid are investigated to determine basic antenna structure

    本文首先對rfid技術的研究和發展現狀進行了綜述，系統的闡述了rfid的基本組成和工作原理、天線場區的劃分、能量耦合的方式以及rfid的典型工作頻率與應用，並確定基本的天線形式。
  17. After having analyzed the theory of the calculator circuit thoroughly, the author made use of the characteristic of the calendar circuit and put forward a new design method, namely replacing the static circuit with the dynamic circuit to reduce the area of whole chip. now the author has finished the design of the calendar circuit and accomplished the layout design with the full - custom method

    本文作者在透徹分析計算器原理的基礎上，利用萬年歷電路的工作頻率的特點，提出了以cmos動態門代替靜態觸發器的設計方法，獨立設計出萬年歷部分電路，將其與計算器部分電路緊密融合，構成一塊完整的數字大規模集成電路，並以全定製的方法實現了整個晶元的版圖設計。
  18. When the plasma density increases, the operating frequency also increases slightly, the temporal growth rate increases as well

    另外，等離子體密度的增加，也帶來工作頻率的略微升高，同時增長率也發生變化。
  19. They said their efficiency at work was reduced by about 40 percent and reported a high frequency of accidents, lateness and

    他們說，他們的工作效率下降了40 ，而且意外事故遲到和礦工的發生頻率也很高。
  20. They said their efficiency at work was reduced by about 40 percent and reported a high frequency of accidents, lateness and absenteeism

    他們說，他們的工作效率下降了40 ，而且意外事故遲到和礦工的發生頻率也很高。
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