expected frequency 中文意思是什麼

expected frequency 解釋
期望頻率
  • expected : 期待,期望
  • frequency : n. 1. 屢次,頻仍,頻繁。2. (脈搏等的)次數,出現率;頻度;【物理學】頻率,周率。
  1. In light of market risk, there are sensitivity measurement method and volatility measurement method as well as the concepts about risk measurement, such as variance, duration, 3 - coefficient, 5 - coefficient and value at risk. and in light of credit risk, there are accounting - based ratio measurement method and volatility - based measurement method, as well as the related concepts, such as credit rating, z - score, transition matrix, expected default frequency

    其中,針對市場風險度量的方法包括靈敏度測量風險方法和波動性測量風險方法,與之相關的風險度量概念有方差、持續期、系數、類系數和在險價值;針對信用風險度量的方法包括基於財務比率的風險測量方法和基於波動性的風險測量方法,與之相關的風險度量概念有信用評級、 z分數、轉換矩陣、違約頻率。
  2. Hardy - weinberg equilibrium test, the frequency of expected and observed heterozygosity and chi - square ( x2 ) test of fixation index

    3 )用x居群的50個個體進行空間自相關分析。
  3. Experiment result proved, relative to complicated structure and hig h request for laying wiring of zvs series resonant full - bridges, push - pull class - e amplifier is expected more suited for high frequency high - power output ability relatively, which is suitable for popularizing

    實驗證明,相對于結構復雜,布線要求較高的全橋串聯諧振逆變器,推挽式雙e類放大器具有更高頻率和較大功率的輸出能力,適于推廣一。
  4. A new method is presented. the travel time, including the time delays associated with overland folw pathways, is obtained. it is expected that the hillslope velocity and the stream velocity are different, and different equation is used. in the method, the fact that velocity increases going downstream in river systems is taken into account. after the travel time of each cell being calculated, the frequency distribution of the times of arrival of individual water droplets at the catchment outlet - giuh, is obtained

    提出了一種匯流時間計算方法,匯流時間中包括坡地漫流時間和河道匯流時間。方法中坡地單元的匯流速度與河道單元的匯流速度採用不同的計算公式,同時考慮流速沿河道向下游的變化。流域中每一個網格單元的匯流時間得到后,將其看作隨機變量,進行統計分析后,得到匯流時間的頻率分佈? giuh 。
  5. The future wireless mobile communication systems are expected to provide ubiquitous, high - quality, and high - rate mobile multimedia transmission. however, hostile multipath fading radio conditions give rise to serious inter - symbol interference ( isi ) ; even worse, wireless channel are often time varying, which makes the system more vulnerable and more difficult to track the channel state. orthogonal frequency dvision multiplexing ( ofdm ), which is inherently resistant against isi, has invoked a popular research interest in recent years, and has been a promising candidate technology of the physical layer for future weideband high - date - rate wireless communications. notwithstanding, ofdm is much more vulnerable to errors of both time and frequency synchronization and to that of channel estimation, and how to obtain correct timing and channel estimation efficiently is highly critical to ofdm systems. the dissertation will focus on both of the aspects of ofdm systems mentioned above

    但是無線環境的多徑特性造成通信系統中嚴重的符號間干擾,同時無線通道的時變性使得通道特性跟蹤復雜。而正交頻分復用技術( orthogonalfrequencydivisionmultiplexing , ofdm )正是一種解決符號間干擾的有效傳輸手段,因此ofdm技術作為未來寬帶高速率無線通信的物理層候選技術在當前引起了一股研究熱潮。但ofdm系統對定時同步誤差和通道估計誤差非常敏感,如何在ofdm系統中準確快速地實現符號同步和通道估計是至關重要的,本論文將重點針對這兩個問題進行討論。
  6. At present, in studying and developing heavy capacities and parallel resonant inverter, it is expected to solve the problems of researching on simple structure and easy to start frequently series resonant inverter in the fields of domestic high frequency induction heating installation. therefore, researching of the subject is to design and study a high frequency ( more than 1 mhz ) and high power topological structures of full solid - state induction heating power supply

    目前在研究和開發大容量的並聯逆變中頻電源的同時,研製結構簡單,易於頻繁起動的串聯逆變高頻電源是國內高頻感應裝置領域有待解決的問題,基於此種需要,本課題主要研究設計一種高頻( 1mhz以上)大功率全固態感應加熱電源逆變電路的拓撲結構。
  7. With the increasing demands of tung chung line train service, mtrcl is committed to provide noise barriers at tung chung along airport express line to mitigate the expected excedances of the noise limits under noise control ordinance due to increase in train frequency

    隨著東涌列車服務需求量不斷增長,地鐵公司決定在東涌沿機場快安裝隔音屏障,以保證在列車班次增加的情況下符合噪音管制條例的規定。
  8. A concept - based approach is expected to resolve the word sense ambiguities in information retrieval and apply the semantic importance of the concepts, instead of the term frequency, to representing the contents of a document. consequently, a formalized document framework is proposed. the document framework is used to express the meaning of a document with the concepts which are expressed by high semantic importance. the framework consists of two parts : the " domain " information and the " situation background " information of a document. a document - extracting algorithm and a two - stage smoothing method are also proposed. the quantification of the similarity between the query and the document framework depends on the smoothing method. the experiments on the trec6 collection demonstrate the feasibility and effectiveness of the proposed approach in information retrieval tasks. the average recall level precision of the model using the proposed approach is about 10 ? higher than that of traditional ones

    為了獲取詞語在文章中的語義權重,解決詞語的同義、多義模糊問題,提升信息檢索的效率,提出了一種基於概念的檢索模型,模型中設計了一種形式化的文本內容表示框架,框架由2部分構成:文章的"領域"以及"情景與背景"信息,並由概念(形式化語義)加以表示.同時,提出了提取該概念框架的方法,給出了用於框架與檢索要求間匹配的兩階段平滑演算法.實驗表明,在trec6提供的小規模語料集下,採用所提出方法的信息檢索模型與傳統模型相比,平均召回準確率提升了約10 ? ,效果顯著,充分說明了基於本文描述方法構建的、以概念作為處理中介的信息檢索系統的有效性和可行性
  9. Supposing the company ' s value satisfies a certain probability distribution, then, we can calculate the company ' s value in the future as well as its connotative undulation basing on the relationship and a certain option pricing formula, which is based on the supposing talked above. further, we can calculate the company ' s expected default frequency. by now, the goal to measuring the company ' s credit risk has realized

    如果假設公司價值波動服從某一概率分佈,那麼根據與此概率分佈相對應的期權定價公式,以及股票價格波動率與公司資產價值波動率之間的函數關系,即可求出公司未來某個時點的期望價值及其隱含波動率,並進一步計算出此時點公司違約的概率,由此便實現了對公司信用評級的目的。
  10. 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。
  11. In the work, mid - frequency pulse magnetron sputtering is used to prepare znoral thin films used as the back reflector of the thin silicon films solar cells. the best techological condition was obtained by optimizing the preparing conditions, ( var is decided by the deposition rate, target voltage : 265v, gas pressure : 0. 6pa, the high base vacuum is expected

    本文採用中頻脈沖磁控濺射法,通過優化zno : al薄膜的制備工藝,如靶電壓、本底真空度、工作氣壓、襯底溫度、 o _ 2 ar ,得到可用於硅薄膜太陽能電池背電極的zno : al薄膜。
  12. Expected default frequency

    預計違約頻率
  13. When the table contains more than one cell with an expected frequency of less than 5, we can combine these in order to get an expected frequency of 5 or more.

    當表中的期望頻率小於5的項多於一個,可以把它們加以合併,以使期望頻率大於等於5。
  14. Expected frequency - the highest speed at which the tested processor was manufactured to operate

    期望頻率-被測試處理器製造時的限定的最高速度。
  15. When the table contains more than one cell with an expected frequency of less than 5, we can combine these in order to get an expected frequency of 5 or more

    當表中的期望頻率小於5的項多於一個,可以把它們加以合併,以使期望頻率大於等於5 。
  16. The experiment result indicates that the circuit system has achieved the expected design goals. furthermore the circuit system is valuable for designing the data acquisition and control system for any frequency modulation sensor

    經實驗驗證,所設計的電路系統不僅能達到預期的設計目標,此外其設計思想對任何只要輸出是頻率信號的傳感器的使用都具有積極的參考價值。
  17. In a word, a good drug advertisement shall be the one within appropriate lifecycle of the product, to appropriate consumers, by means of appropriate media, in appropriate frequency, and with appropriate content. the benefit of this advertisement would certainly be satisfactory as expected

    總之,一則好的藥品廣告,要求在正確的產品生命周期向正確的受眾在正確的媒體以恰當的頻率發布了正確的藥品廣告內容,這則廣告的效益自然能獲得預期效果。
  18. In addition, for a dispersive high frequency system, because of the requirement of the phase in - step between the beam and electromagnetic wave, the bandwidth are expected to be located in a narrow range

    另外,對干填充等離子體的色散高頻系統,由干電子注和電磁波互作用的同步要求,系統帶寬必然分佈在某一有限范圍內。
  19. The research of predicting financial distress in chinese listed firms based on expected default frequency model

    基於期望違約率模型的上市公司財務困境預警研究
  20. In this thesis, we assumes the mont carlo method to simulate the antielectric materials based on the ising model and achieves expected results of scaling behavior between the area of the double loop and the frequency of imposed fields

    本文首先使用蒙特卡羅方法研究了反鐵電的標度行為,得到了面積與頻率及振幅的標度關系,在低頻區,面積與頻率呈嚴格的2 / 3次方指數律。
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