頻數表 的英文怎麼說
中文拼音 [bīnshǔbiǎo]
頻數表
英文
frequency table-
By making some assumptions, collision frequency were presented. then the the flocculation kinetics model was established through population balance equation. comparison of experimental data and modeling results indicate that there are the same trend between the two. so the model can predict floes number and size during flocculation of yellow river ' s loess particles without using empirical parameters. the tem and sem were used to obsever floes in the study of floe structure. the flocculation was divided as flocculi, floc and floe aggregate. the floes structure model was established by assumption that particles position in floe accords with tetrahedron. the fractal dimension of model and experimental floes was found to be coincidentso the model can reflect the structure of flocs formed in flocculation of yellow river ' s loess particles by macromolecule flocculant at a certain extent
最後,本文還對絮凝動力學和絮體結構進行了研究,在前人研究的基礎上,針對高分子絮凝黃河泥沙,對絮凝過程作了一些符合試驗條件的假設,建立了顆粒碰撞頻率表達式,應用了顆粒數量平衡方程,從而建立了絮凝過程的動力學生長模型,模型計算結果與試驗數據對比表明,二者趨勢一致,在沒有使用經驗參數的情況下基本上能夠描述黃河泥沙絮凝過程中絮體數量和尺寸分佈的變化過程;對絮體結構的研究中,應用掃描電子顯微鏡和透射電子顯微鏡對絮體進行了觀察,將絮體分為絮粒、絮團和絮網三個不同的生長階段,通過假設顆粒結合位置符西安建築科技大學博士學位論文合正四面體,建立了絮體結構模型,計算得到的模型絮體分形維數基本與試驗中的實際絮體相符,在一定程度上能夠反映高分子絮凝黃河泥沙生成的絮體結構。Given a table of raw data, the six sigma black belt should be able to prepare a frequency tally sheet of the data, and to use the tally sheet data to construct a histogram
給出一份原始數據表, 6西格瑪黑帶應能作出一份數據頻次表,並且能使用這頻次表構建一份直方圖。For example : the high frequency digital oscilloscope, the appropriative debugging, tests computer, eprom read - write, the multimedia computer video frequency signal generating device, the digital camera, dmm, weatherometer, the wave ridge welding machine and so on
如:高頻數字示波器專用調試測試電腦eprom讀寫器多媒體電腦視頻信號發生器數碼相機數字萬用表器件測試老化臺波峰焊機等等。Section ii describes the design approach and implementation of speech module on mcf5249 coldfire core. the speech codec optimizes g. 729a codes and added voice activity detection of g. 729b to save bandwidth ; the implementation of acoustic echo cancellation uses nlms algorithm and it can reduce echo though designing adaptive fir filter and speech detector ; the dtmf and cpt generate signal using two second order digital sinusoidal oscillators and detect signal by picking up the frequency information. but only get the frequency information is not enough in cpt detector, this thesis introduces a method
其中對語音編解碼器的設計採用優化g . 729a代碼達到設計要求,並在此基礎上加入g . 729b的靜音檢測模塊,以進一步降低網路傳輸帶寬;對回聲消除器的設計採用nlms演算法,通過設計自適應fir濾波器和語音檢測器達到回聲消除目的;對雙音多頻設計,信號發生端採用構造靜態參數表並通過二階正弦振蕩器產生信號,信號檢測端提取頻率信息以檢測信號;對呼叫進程音設計,除了類似雙音多頻的信號發生及頻率檢測設計外,還需要檢測信號持續時間,作者設計了一種基於匹配狀態表的方法以檢測信號持續時間。The purpose of this web site is to share my experiences with workers in any country on water logging in agricultural lands, irrigation induced soil salinity, subsurface drainage for agriculture ( horizontal and vertical ), reuse of groundwater, ground - water hydraulics, ( geo ) hydrology, rainfall and surface runoff relations, reclamation and improvement of water logged saline, salty, sodic alkaline, and acid sulphate soils, plant growth, crop production and responses as well as statistical analysis consisting of segmented linear regression and cumulative frequency distributions
描述:探討農業耕地的水澇問題;灌溉導致的土壤鹽堿化;地表灌溉;地下水的再利用;地下水水力學;雨水與水流失的關系;淺地表排水;土壤開墾及水澇,酸性,堿性土壤的改良;片段線形回歸和累積頻數分佈的統計分析等。The results showed there were normal distribution patterns between each factors and it ' s frequency
結果表明:長穗苜蓿植株群體穗長、小花數、莢果數、種子數出現的頻數均近似呈正態分佈。Firstly, we find that both the quoted bid - ask spreads and depths decline dramatically in all twenty - five closed - end funds following the reduction in minimum tick size. we also find trade frequency increase. secondly, our analysis shows the reduction in minimum tick size cause an decrease in the variance of rice. finaly, we find that the minimum tick size influence the market efficency and the reduction in minimum tick size increase the market information efficency
研究結果表明:一,最小報價單位「分改厘」使上海證券交易所交易的25支封閉基金的買賣價差和報價深度明顯減小,而交易頻數增加:二,最小報價單位的減小降低了封閉式基金的價格波動性;三,最小報價單位的大小會影響市場效率, 「分改厘」提高了封閉式基金市場的信息效率。Frequency distribution table
頻數分佈表In the aspect of saw devices, for zno has high coupling factor, and aln has high saw velocity, if zno thin film was deposited on aln thin film, the multiplayer film has not only high coupling factor, but also has high saw velocity, which was suitable for saw of high frequency
在聲表面波器件應用方面,由於zno具有很大的機電耦合系數,而aln的聲表面波傳播速度較高,因此若zno和aln相結合,則不僅具有大的機電耦合系數,而且具有很高的聲表面波速度,這非常適合於製造高頻聲表面波器件。The research showed that : from january to march, the acreage average ozone gross gathered, which was synchronized with the increase of the frequency of strong ssw event. furthermore, the change tendency of ozone gross in the atmosphere break forward and backward 1990. after the1990s, ozone gross in the atmosphere appeared negative anomaly in the mid and high latitude of north hemisphere from january to march, which was consistent with the obvious descent of appearance frequency of strong ssw event after the 1990s
分析表明: 1至3月,臭氧總量的面積平均逐漸增高,這與強ssw事件頻數1至3月增高同步;此外,大氣臭氧總量趨勢變化以1990年前後存在明顯的突變, 90年代以後,北半球中高緯1 ? 3月間大氣臭氧總量處于負異常階段,這和90年代以來強ssw事件發生頻數明顯下降相吻合。The result follows : ( 1 ) cg lightning in common thunderstorm with weak convective intensity is active at the developing and mature stages, the negative flash rate begins to decline gradually afterwards. the cg flashes in all lifetime are almost of negative polarity and very rarely positive polarity
分析結果表明:對流強度弱的普通雷暴在發展階段和成熟階段地閃比較活躍,在成熟之前出現地閃頻數的峰值,隨后地閃頻數逐漸減小,整個生命史中幾乎全為負地閃,極少出現正地閃。A new full - wave measurement circuit structure is put forward that would increase distribution automation system reliability and veracity. the distributed protection and monitoring unit in this paper can instead of general instruments of low voltage distribution system. it not only combines ampere meter, voltage meter, active power meter, reactive power meter and power meter, frequency meter into a meter, but also increases monitoring position switch, control bus switching alternately and monitoring energy
本文研製的保護和測控單元,可替代低壓配電系統中所使用的常規儀表,將原來迴路需要的電流表、電壓表、有功功率表、無功功率表和功率因數表、頻率表簡化為一塊表,並增加了位置開關量檢測,控制母線投切和電度監測功能,從而極大的簡化了低壓配電二次儀表設計、安裝調試,提高了運行、維護和管理水平。In addition, the concept of scene centriod is introduced to represent video scene by averaging of all key frames inside a group of shots in the given video scene, which makes an audacious attempt for high - level video unit extraction and representation ; 4 ) according to the given sample video, shot and scene - based video retrieval methods are discussed respectively, and the evaluation pricinples are also discussed
進而,討論了由場景中一組鏡頭的關鍵幀的質心表示場景關鍵幀,即場景質心的方法,從而為抽取高層的視頻數據單元做出了大膽的嘗試; d )從給定樣本視頻出發,分別討論了基於鏡頭和場景的視頻檢索方法,並分析了檢索性能評價的準則。The security of the algorithm is analyzed from the randomness, linear complexity of the chaotic sequence and the intensity of initial key. the results show the randomness of the key sequence pass the frequency test, sequential test, poker test, autocorrelation test, runs test, etc. and the total level is better than the binary sequence generated by the prng of delphi 7. 0, logistic chaotic system and rc4, the linear complexity comes up to the expectation, the initial key has very strong intensity
本文最後從混沌序列的隨機性、線性復雜度和初始密鑰的強度三個方面對演算法進行了安全性分析,結果表明演算法產生的密鑰序列的隨機性完全通過了頻數檢驗、序列檢驗、撲克檢驗、自相關檢驗和遊程檢驗等5種統計檢驗方法的檢驗,而且整體水平要好於delphi7 . 0中的偽隨機數發生器、 logistic混沌系統和rc4三種方法產生的二進制序列,線性復雜度達到了數學期望值。It ’ s known from the transportation function that the dispersion can only influence the phase of optical pulse ’ s spectrum, which can be easily described by a frequency transfer function
該方程表明:色散效應只會影響頻譜的相位,而對頻譜的強度分佈沒有影響,而且色散效應可以簡單的由傳遞函數表示出來。Pickup cameras take in the video and get the data and translate to the computer. computer operates the avi video stream manipulation and the image processing
攝像頭拍攝被檢驗的儀表獲得視頻數據,計算機通過對avi文件視頻流的實時操作,對儀表進行實時的自動監控,實現監測儀表指針運動異常的功能。The relationship between cef and china summer rainfall and that between cef and tropical cyclone frequence ( tcf ) in the northwest pacific ( nwp ) are investigated. lt is found that the several branches of cross - equatorial flow have different interannual variability. periodicity and interdecadal variability. the five channels in the lower troposphere in the monsoon region of the eastern hemisphere have different relationships with china summer rainfall. the results also show that there are obvious relation between the interannual variatin of cef and tcf from july to october in the northwest pacific
確定了東半球季風區對流層高低層各支越赤道氣流通道的位置,並探討了越赤道氣流與我國夏季降水和西北太平洋上熱帶氣旋發生頻數的年際變化之間的關系。結果表明:季風區夏季的幾支越赤道氣流具有不同的年際變率、周期以及年代際的變化特徵。夏季季風區對流層低層的5支越赤道氣流的強度與我國夏季降水呈不同的相關型。Abstract : through transient spectrum analysis, we can obtain such parameters as transient central frequency, transient frequency width and transient principal frequency. these parameters indicate dynamic characteristics of real signals, benefit the study of dynamic characteristics of radar wave, and can prvide multiple parameters for integrated interpretation of the radar profile
文摘:通過瞬態譜分析,可以求得瞬時中心頻率、瞬時頻寬、瞬時主頻等參數表徵實信號動力學特徵,有利於對雷達波動力學特徵的研究,並可提供多參數對雷達剖面進行綜合解釋。First, the methods and procedures of general three orders nonlinear identification are summarized and the results are frequency functions described by basic and high order spectral density functions and frequency response functions
首先,系統總結了使用一般三階非線性模型辨識的方法和步驟。得到的結果是用基本的和高階的譜密度函數以及基本的和高階的頻率響應函數表示的頻率函數。Lacking of space locality in time domain, fourier analysis can only make certain of the integral singularity of a function or signal. as a result, it is difficult to detect the spatial position and distribution of broken signal by fourier analysis. wavelet analysis has the characteristic of spatial locality, and its wideness in both windows of the time and the frequency can be adjusted, so it can analyze the details of a signal
經典的fourier變換把信號按三角正、餘弦基展開,將任意函數表示為具有不同頻率的諧波函數的線性迭加,能較好地刻劃信號的頻率特性,但它在時空域上無任何分辨,不能作局部分析,這在理論和應用上都帶來了許多不便。分享友人