頻率異常 的英文怎麼說

中文拼音 [bīncháng]
頻率異常 英文
frequency anomaly
  • : 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...
  • : 率名詞(比值) rate; ratio; proportion
  • : 形容詞1 (有分別; 不相同) different 2 (奇異; 特別) strange; unusual; extraordinary 3 (另外的;...
  • 頻率 : frequency; rate
  1. Practice shows that the application of frequency spectrum characteristics to the evaluation of ip anomalies caused by sulfide mineralized bodies ( chalcopyrite ) and graphite - bearing dolomitic marble is effective

    實踐證明,利用譜定性評價硫化物礦化體(黃銅礦)與含石墨白雲質大理巖激電源取得較佳效果。
  2. Psittacula agapornis ), oscine passenon ( emberiza rutila ) and the vocalizations of sub - oscine passerine ( melopsittacus undulates, psittacula agapornis ) after sectioning nxiits were recorded by sharp gf - 6060 recorder. cooledit2000, an acoustic analyzing software, was used to produce the original wave and it ' s expanded time windows, sonograms, spectrums and power static histograms. to distinguish the acoustic differences of their natural vocal and to find the changes of sub - oscine passerine ' s song after sectioning nxiits, the above results is acoustically analyzed and compared, expecting to provide some advantage to further explaining the mechanism of vocal production

    本實驗以非鳴禽(家鴿、家雞) ,亞鳴禽(虎皮鸚鵡、牡丹鸚鵡)以及鳴禽(栗? )為實驗材料,記錄其正叫聲以及亞鳴禽斷nxiits后的叫聲,用cooledit2000聲音處理軟體制出原始信號及其展開圖,聲圖,譜圖以及能量統計分布圖,並對所得結果進行聲學比較分析,以期得到鳴禽、亞鳴禽及非鳴禽叫聲在聲學特性上的差,以及亞鳴禽在斷神經后叫聲的聲學變化,旨在為進一步解釋其發聲機制提供幫助。
  3. The essence of edid is to set up a normal behavior fuzzy sub collection a on the basis of watching the normal system transfer of the privilege process, and set up a fuzzy sub collection b with real time transfer array, then detect with the principle of minimum distance in fuzzy discern method the innovation point of this paper is : put forward the method of edid, can not only reduce efficiently false positive rate and false negative rate, also make real time intrusion detection to become possibility ; have independent and complete character database, according to the classification of monitoring program, design normal behavior and anomaly behavior etc., have raised the strongness of ids ; use tree type structure to preservation the character database, have saved greatly stock space ; in detection invade, carry out frequency prior principle, prior analysis and handling the behavior feature of high frequency in information table, have raised efficiency and the speed of detection, make real time intrusion detection to become possibility ; have at the same time realized anomaly intrusion detection and misuse intrusion detection, have remedied deficiency of unitary detection method

    這種方法的實質是在監控特權進程的正系統調用基礎上建立正行為模糊子集a ,用檢測到的實時調用序列建立模糊子集b ,然後用模糊識別方法中的最小距離原則進行檢測。本文的創新點是:通過對特權進程的系統調用及參數序列的研究,提出了基於euclidean距離的入侵檢測方法edid ,不僅能有效降低漏報和誤報,而且使實時入侵檢測成為可能;設計有獨立而完整的特徵數據庫,根據被監控程序的類別,分別設計正行為、行為等,提高了檢測系統的強健性和可伸縮性;特徵數據庫按樹型結構存儲,大大節省了存儲空間;在檢測入侵時,實行度優先原則,優先分析和處理信息表中的高度行為特徵,提高檢測的速度和效,使實時入侵檢測成為可能;同時實現了入侵檢測和誤用入侵檢測,彌補了單一檢測方法的不足。
  4. Partial chromosomes happened abnormally during pollen mother cells meiosis, which included chromosome chain, chromosome loop, lagging chromosome and chromosome unequal distribution

    麗? 2號花粉母細胞在減數分裂期染色體行為發生了,出現較高的染色體鏈及少部分的染色體環和落後染色體。
  5. Objective to investigate the frequency of chromosome abnormality in 415 infertile males

    摘要目的研究中國人群男性不育患者的染色體分佈。
  6. Data used in this work are north pacific ssta, 160 stations precipitation of china, and ncep reanalysis data. main results are as follow : ( 1 ) it is found that a apparent transition of north pacific ssta in later 1970 ' s : eastern and middle - equatorial pacific ssta turns from cold to warm with area extending, and mid - latitude pacific ( west wind drift zone ) turns from warm to cold. during this transition of ssta, different characters also appear in el nino and la nina : before 1976, la nina happens more frequently, and its duration is longer, el nino zone develops from negative ssta in the early stage ; after 1976, el nino happens a little bit frequent and longer with more intensity than before, el nino zone develops from positive ssta in the early stage ; the course of ssta variation has an enso cycle of 2 - 6 years, annual oscillation of 8 - 9 years, and decadal variation of about 22 years

    本文採用1950 - 1999年北太平洋海表溫度( sst ) 、中國160站夏季降水和ncep再分析的歐亞500hpa高度場等資料,利用eof 、 svd 、小波分析、合成分析和相關分析等方法,在分析北太平洋海溫時空分佈特徵的基礎上,著重探討了海溫及其年代際變化對我國東部降水的影響,並對降水、高度場和海溫三者之間的關系進行了分析,以試圖尋找三者之間可能的聯系,主要結論如下: ( 1 ) 1976年前後,北太平洋海溫經歷了一次明顯的轉變,赤道中、東太平洋厄爾尼諾海區由冷轉暖,暖水范圍增大,中緯度西風漂流區海溫由暖轉冷;在這樣的年代際背景下,厄爾尼諾、拉尼娜事件在不同的時期也有不同的特徵:在76年前,拉尼娜事件發生高,持續時間長,事件起始於負海溫距平;而76年後,則是厄爾尼諾事件發生略高,持續時間長,強度增大,事件起始於正海溫距平。
  7. Analysis shows that when summer precipitation in north china is richer ( less ), tropical east pacific ssta is colder ( warmer ) phase, and slp and 500hpa geo - potential height are negative ( positive ) anomaly over the asia, west pacific sub - high is northerner ( southerner ), and block high in mid - highs latitude happens less ( more ) than normal, east monsoon is stronger ( weaker )

    分析表明華北夏季多(少)雨期,赤道中東太平洋ssta處于冷(暖)位相,在非洲大陸上slp利500hpa位勢高度均為負(正),西北太平洋副高位置偏北(南) ,中緯度阻塞高壓發生較低(高) ,東亞夏季風偏強(弱) 。
  8. Recently, with the development of good quality nonlinear frequency - conversion crystals and solid - state laser used as pump source, research activities in this area is heating up

    近年來,隨著高質量非線性變換晶體和固體激光器抽運源的快速發展,這一領域的研究活躍。
  9. Abstract : biological invasions are a continuous feature of a non - equilibrium world, ever more so as a result of accidental and deliberate introductions by mankind. while many of these introductions are apparently harmless, others have significant consequences for organisms native to the invaded range, and entire communities may be affected. here we provide a survey of common models of range expansion, and outline the consequences these models have for patterns in genetic diversity and population structure. we describe how patterns of genetic diversity at a range of markers can be used to infer invasion routes, and to reveal the roles of selection and drift in shaping population genetic patterns that accompany range expansion. we summarise a growing range of population genetic techniques that allow large changes in population size ( bottlenecks and population expansions ) to be inferred over a range of timescales. finally, we illustrate some of the approaches described using data for a suite of invasions by oak gallwasps ( hymenoptera, cynipidae, cynipini ) in europe. we show that over timescales ranging from 500 10000 years, allele frequency data for polymorphic allozymes reveal ( a ) a consistent loss of genetic diversity along invasion routes, confirming the role of glacial refugia as centres of genetic diversity over these timescales, and ( b ) that populations in the invaded range are more subdivided genetically than those in the native range of each species. this spatial variation in population structure may be the result of variation in the patchiness of resources exploited by gallwasps, particularly host oak plants

    文摘:生物入侵是不均衡世界的一個永恆話題,尤其是當人類有意或無意地引入物種后.很多引入顯然是無害的,但另外一些則有著嚴重的後果,會給入侵地的生物以至於整個生物群落造成影響.本文總結了分佈區擴張的見模式,概述了它們對遺傳多樣性和種群結構式樣所造成的影響.描述了如何根據以一批遺傳標記所得到的遺傳多樣性式樣來推斷入侵途徑,來揭示伴隨擴張選擇和漂變在形成種群遺傳樣式中的作用.本文對日益增多的群體遺傳學方法進行了總結,這些技術可以用來在不同的時間尺度上推斷種群規模所發生的巨大變化(瓶頸效應及種群擴張) .最後,我們以歐洲櫟癭蜂(膜翅目,癭蜂科,癭蜂族)一系列入侵的數據為例對一些方法進行了說明.從500 10000年的時間尺度上,多態的等位酶位點上等位基因的數據表明: 1 )遺傳多樣性沿入侵路線呈不斷下降的趨勢,支持了冰河期避難所作為遺傳多樣性中心的作用; 2 )入侵地區的種群與該物種原產地的種群相比,遺傳上的分化更為強烈.這種種群結構在空間上的變可能是被櫟癭蜂開發的資源尤其是櫟樹寄主在斑塊上出現變的反映
  10. Based on the results of previous researchers, the following instigations have been carried out in this paper : ( 1 ) employing a reasonable local resonance model which can accurately embody the heat - generation behavior due to resonance and vibration - heat mode in delaminated region, the dynamic response and temperature distribution in the small delamination region of a laminated beam are formulated. influence of the excitation frequency on the temperature gradient formation is analyzed numerically, and several meaningful conclusions are drawn. ( 2 ) for laminated plates with delaminations, due to complexity of the analytical solution, the finite element method is employed to analyze their temperature distributions and satisfactory results are also obtained

    本文在前人研究的基礎上,對此方法進行了進一步的探討,主要做了以下的工作: ( 1 )選取合理的、能夠準確反映由共振而產生熱量的行為的局部響應模型,以及合理的振動熱模式,推導了一維層合梁小脫層區域的振動響應及梁的溫度分佈,並編製程序計算了該層合梁在激勵一段時間后的溫度分佈趨勢,分析了激勵對溫度梯度形成的影響,得到了一些有意義的結論; ( 2 )對於二維層合板,由於解析解的形式復雜,本文採用有限元計算軟體對其溫度分佈進行了分析,也得到了較為滿意的結果。
  11. Difference of critical twinkle visual frequency of different chromatic light between normal persons and patients with different type of schizophrenia

    人與不同類型精神分裂癥患者不同色光臨界閃爍視的差
  12. To make it, the only method is that we put up a long term monitoring system about cave and learn about the number and rate of entering of human being. after observing and analyzing the data, we can discover the regulation and the " entropy " which leads to the variation of environment. the management and protection of karst caves for tourism is a long - term and meticulous work, which entails a great deal of data - collection as well as research and needs the closely joint effort of the explorers, tourists and scientists studying these caves

    要做到這一點唯一的辦法就是對洞穴環境進行長期的監測,結合旅客的進洞人數和,進行動態觀測,然後對這些觀測資料進行分析對比,找出規律性的東西,找出環境變的「嫡」值信息系統是一個集成的系統,其目的是對組織的業務數據進行採集、處理和交換,以支持和改善組織的日業務運作,滿足管理人員解決問題和制定決策的各種信息要求。
  13. In general, the upward amplitude curve " curvature is larger, and it changes quicker. on the contrary, the downward is smaller and slower ; because the flare force contains the square of the wave elevation velocity, it results in an difference between the flare force frequence and the associated moving frequence ; the flare force decreases the downward amplitude of heaving oscillations ; the speed of ship has an ignorant effect on the peak values of three calculated values, but there is an obvious effect on the oscillating frequence ; the wave amplitude has an effect on the ship motion, and there is an linear relation between the oscillating amplitude and the wave amplitude on the whole. by the way, there are some experiences and lessons according to the progress calculation : before the calculation of the ship motion, we should checkout the balance in a calm water firstly, namely, the whole displace of ship and the longitudinal position of the center of gravity must be consistent with the draft in calm water, or else, the calculation may show the " floating " phenomenon ; the mixed language programming has a lot of virtues, but it exists a fatal limitation - the debug of dll

    研究表明:在某些范圍內相關水動力系數基本不隨吃水變化,只有超過某一后水動力系數的值才會出現差;在橫搖方向,水動力系數並沒有隨著吃水的變化發生規則變化,而是出現了波動現象;近船首剖面的水動力系數計算表明,水動力系數的波動非大,並遠遠偏離了平均位置的水動力系數值,值的變化速也不盡相同,總的看來,上振幅曲線曲較大,變化較快,下振幅曲線曲較小,變化較慢;外飄力和波面運動的速度的平方項有關,導致其振動和相應運動方向的不同;外飄力使升沉向下運動的幅值減小;船速對三個計算量的峰值影響甚微,但對振動有明顯影響;波幅對船舶運動的影響是明顯的,船舶運動的幅值基本上和波幅成線性關系。
  14. Starting with the research on the characteristics of frequency spectra of the ip field as well as charging - discharging time and based on experiment results, the authors summed up frequency spectra, time spectra and decay rate characteristics of sulfide mineralized bodies ( chalcopyrite ) and graphite - bearing dolomitic marble, and detected new parameters for qualitative evaluation of ip anomalies

    摘要從研究激電場譜特徵及充、放電時間特徵出發,根據實驗觀測結果,總結了硫化物礦化體(黃銅礦)及含石墨白雲質大理巖等巖性的譜特徵及充放電時間特徵,探索到新的定性評價激電源參數譜及時間譜、視衰減速度。
  15. However, comparing to foreign ripe exchange market, china stock market exhibits high - risky features such as abnormal magnitude of trade, high change of stock, high frequency and amplitude of stock price volatility and so on

    然而我國股票市場同國外成熟市場相比,表現出交易活躍,換手很高,價格波動的高、波幅大等特點,體現出新興股票市場的高風險特徵。
  16. The second is to assure a multiple - parameter matrix characteristic equation has no nonzero pure imaginary roots. the key of this part is to verify that the structured singular value of a one - unknown matrix function is not equal to one. this work can be accomplished by a frequency sweeping test method

    前者的核心是判定某矩陣的結構奇值不等於1 ,這只需計算矩陣的結構奇值;後者的核心是判定某個以為變元的矩陣的結構奇值不等於1 ,這一問題由掃描測試法解決。
  17. Guide for abnormal frequency protection for power generating plants

    發電設備保護指南
  18. Traditional statistics - based approach utilizes a stationary model, in which anomaly value is calculated according to events frequencies in history

    傳統的基於概統計的方法採用的是靜態模型,即根據歷史上事件出現的來計算新事件的值。
  19. While some offer the frequency of this scenario as an example of the unworkability of the approach to exception handling taken by the java language design, i think it is merely a failure to use the right tools

    雖然一些人提供發生這種情景的,是為了作為例子說明java語言設計採用的處理方法的不易操作性,但是我認為這僅僅是錯誤地使用了正確的工具。
  20. The dow industrials has lately hit new highs with unusual frequency

    道瓊斯工業股票指數最近不斷創造新高,頻率異常
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