首次取樣 的英文怎麼說

中文拼音 [shǒucìqǔyàng]
首次取樣 英文
erstbemusterung initial sample test
  • 首 : Ⅰ名詞1 （頭） head 2 （首領） leader; head; chief 3 （表示方位） aspect 4 （姓氏） a surname Ⅱ動...
  • 次 : Ⅰ名詞1 （次序; 等第） order; sequence 2 [書面語] （出外遠行時停留的處所） stopping place on a jou...
  • 取 : Ⅰ動詞1 （拿到身邊） take; get; fetch 2 （得到; 招致） aim at; seek 3 （採取; 選取） adopt; assume...
  • 樣 : Ⅰ名詞1. （形狀） appearance; shape 2. （樣品） sample; model; pattern Ⅱ量詞（表示事物的種類） kind; type
  • 首次 : for the first time; first
  1. Based on the quantitative studies of siliceous microorganisms and terrestrial detritus in 12 surface sediment samples, which were recovered by the first chinese national arctic expedition team, in the bering sea, it goes without saying that diatom abundance is dominant within the microorganisms which consists of diatoms, radiolarians and sponge spicules

    摘要中國首次北極科學考察在白令海?取了12個表層沉積物樣品，其中對矽質生物和陸源碎屑的詳細研究發現，它們主要由矽藻、放射蟲和海綿骨針組成。
  2. First, how to conduct sample and quantification of continuous time signal which is prior condition of sdr is explored in detail, and the comparison and analysis of some sample modes are given in which band pass signal sampling theorem is most important. second, multi - sample rate signal processing which is an important basis of sdr is studied. emphasis are put on decimation and interpolation those are the most fundamental process and the realization of decimation and interpolation filter

    在基於中頻采樣的軟體無線電結構框架下，首先詳細探討了軟體無線電的前提條件，即如何對連續時間信號進行采樣量化，比較分析了幾種采樣的方式，其中最為重要的是帶通信號采樣定理；然後探討了軟體無線電的一個重要基礎，即多采樣率信號處理，重點討論其最基本的兩個過程抽取和內插以及抽取器和內插器的實現；接著介紹了結構簡單、適用於一級抽取的cic濾波器和適用於做2倍抽取的半帶濾波器；再次論文在總結了傳統的調制解調基礎上，結合軟體無線電器件的特點，系統的探討並實現了基於正交思想的am 、 fm 、 ask 、 fsk 、 bpsk 、 qpsk的正交調制解調演算法。
  3. The paper initiated electroabsorption modulator replacing the conventional model of sampling optical source and high - speed photonic switching. the novel approach greatly simplified the sampling system and improved the stability and reliability. it has been validated in experiment

    首次提出採用電吸收調制器代替常規的「取樣光脈沖源高速光子開關」的取樣組合，大大簡化取樣系統的結構，提高取樣系統穩定性和可靠性，並進行了實驗驗證。
  4. First, this paper gives an introduction of some methods of unequal probability sampling, their estimators and variance estimators, including sampling with pps with replacement, methods of sampling without replacement suggested by brewer, durbin, sampford, des raj, murthy, rao - hartley - cochran. then, at the basis of rao and bayless ' s study, we consider that population can be splited two random subpopulations, which are respectively drawn from different infinite super - populations, and compare the stabilities of estimators of the methods that given above. we find that the minor difference between two super - populations has great effect on the efficiency of the estimators for the population with moderately large coefficient of variation ( c. v. )

    本文首先從理論上介紹了若干種不等概率抽樣方法，它們的估計量、估計量的方差及其估計，其中包括有放回ppz及pps抽樣，不放回不等概率抽樣中的brewer 、 durbin 、 sampford 、 desraj ， murthy 、 rao - hartley - cochran等人的方法；其次，在rao和bayless兩人就樣本單元數n = 2的情形對上述抽樣方法進行比較的基礎上，將總體隨機地分成兩個子總體，視每個子總體取自不同的線性超總體，在文中，我們利用計算機實現隨機分組，並通過畫圖比較各方法估計量的穩定性，結果表明，對變異系數c . v . （ x ）較大的總體而言，兩個超總體之間的微小差異將對估計量的穩定性產生很大的影響，從而說明rao和bayless的比較結果還不夠完善。
  5. So this paper tries to solve these problems through the following work : first, we select some index to valuate the close - end funds, including income, stability, risk in falling, stocks selecting ability and tuning ability, based on overseas funds valuation methods and domestic market condition ; second, we analyze the stability of all index and form two styles index, which are f and other bad stability index ; then, we form the valuation system, including two - layers index, which are p and factor score ; last, we use this system to analyze the close - end funds which came into existence before 2000 and get the final comparative result. the main intention of this paper is to create the system of valuating close - end funds in our country, which is comprehensive and objective. in my valuation system involving the period from 2000 to 2003, the funds as a whole performs inferior to the stock index

    首先，對國外理論界經典成型的、以及前沿的基金評價指標和評價方法進行了詳細的分析，並結合我國的基金市場狀況，選取了可以衡量基金收益、穩定性、下跌風險、股票選擇能力、時機選擇能力等量化指標；其次，根據我國基金分析的需要，採用了諸如基金交易價格、換手率等二級市場表現指標；然後，對這些指標進行了時間延續性分析，檢測這些指標在運用到我國基金市場時能否有效預測基金未來表現，從而形成了兩類指標：時間延續性很好的s _ p和時間延續性不好的其它所有指標；再次，在以上工作的基礎上形成了由兩個層面的指標構成的我國證券投資基金評價體系： s _ p和因子分析中綜合因子得分值；最後，選取了我國2000年1月1日前成立的23隻封閉式基金作為樣本，並同時採用上證a股與深成a股兩個基準組合進行了3年樣本期的實證分析，得出了最終的比較性評價結果。
  6. Sir james clark ross had obtained a sounding of over 2, 400 fathoms in 1839, but it was not until of deep soundings was obtained in the atlantic and the first samples were collected by dredging the bottom

    1839年，詹姆斯.克拉克.羅斯爵士曾測得海水深度超過2 ， 400英尋；但直到1869年，皇家學會用英國「豪豬」號艦艇進行了幾次巡航后，才在大西洋測得一個海水深度，同時能過挖掘海底，取得了研究海底的首批樣品。
  7. In connection with the difference and distribution characteristic of the samples in sample space rs based on dga, a new self - adapted weight fuzzy omean clustering model of fault diagnosis of the power transformer based on the potential function is proposed. meanwhile, from the aspect of geometry characteristic of fc - divided in s dimension sample space, a method is proposed for the purpose of getting an effective adjacent radius, adaptive cluster number c and original cluster center of x sample set. for the diagnosis sample x, the property measure and diagnosis rule are proposed, which under the condition of potential density function that determine c number of optimal fuzzy cluster p1

    根據以變壓器dga數據為特徵量的樣本空間各樣本差異特性以及樣本在空間r ~ s的分佈特性，首次提出了基於勢函數自適應加權的變壓器絕緣故障診斷的模糊c -均值聚類模型；同時，從s維樣本空間的f ~ c -劃分幾何特性出發，提出了一種求取樣本集的類勢有效鄰域半徑和自適應求取聚類數和聚類中心初值的方法；對一個待診斷樣本，設計了基於類勢密度函數意義下的屬性測度和診斷準則。
  8. In 2000, destiny s child had three 1 records on the billboard hot 100 : " bills, bills, bills, " say my name, " and " independent women part i. " at the end of november 2000, during its fourth straight week at 1 on the billboard hot 100 chart, destiny s child s " independent women part i " also reached the largest audience 140. 4 million listeners in the history of monitored airplay, breaking the record set in may 1999 by tlc s " no scrubs.

    此輯中不僅收錄了independent women part 1這首為電影霹靂嬌娃所量身打造一舉拿下全美單曲排行11周冠軍的超級單曲，還有僅以超強的點播人氣便強勢挺進全美流行單曲榜亞軍席次的2001年首支全新單曲survivor ，以及節奏俏皮好比卡通配樂的independent women part 2 ，展現優美和音的emotion ，取樣80年代紅透全球的歐式舞曲名作tarzan boy的nasty girl ，將多首經典福音歌曲重新詮釋而成的gospel medley 。
  9. In this paper, we first analyze the input and output as well as cost - benefit rate of chinese livestock industry by the example of hog, beef, mutton and dairy cow. then, we choose the samples from different regions in different time, use the stochastic production frontier suggested by battese and coelli ( 1992 ), which is aimed at the panel data ( balanced or unbalanced ), and make the econometric analysis for the growth of hog, beef, mutton, and dairy cow. different from the former research for livestock industry, the efficiency measurement theory is introdiced into the growth model and the tfp is dissolved into technical advancement, technological efficiency and residual, the translog production function is used to make the estimation more precised

    本文首先以生豬，肉牛、肉羊和奶牛為例對近年來我國畜牧業的投入產出和成本收益狀況進行了分析，然後採用battese和coelli在1992年提出的針對混合數據（ paneldata ）的隨機邊界生產函數形式，在不同地區選取一定的樣本，利用樣本省的時間序列與截面混合數據，對生豬，肉牛，肉羊和奶牛的增長因素進行了分析，與以往對于畜牧業增長研究不同的是，將效率測算理論引入生產增長模型，把全要素生產率分解為技術進步、技術效率和殘差項，並採取了更加符合實際的超越對數函數形式，使傳統上使用的索洛余值法得到改進，更深層次的剖析了我國畜牧業目前的增長方式。
  10. The error analysis model of sampling system was set up for the first time, by combining the saddlepoint approximation analysis and numerical arithmetic, which greatly increased the potential of further application and improved the reliability of the error approximation of the optical sampling histogram

    論文首次建立了採用鞍點近似法與數值演算法相結合的取樣系統誤差分析模型，大大擴展了鞍點近似演算法的適用范圍，提高了誤碼率估算的可靠性。論文提出了基於時分取樣方法的光子模數轉換。
  11. This paper presented a survey designed for the evaluation of the rural public over environment in tai lake basin for the first time

    首次選取無錫市大浦鎮14個行政村2 . 7萬人為抽樣框進行農村公眾環境意識調查。
  12. 4. the improved method of ctab isolation of total dna is suitable for extraction of total dna from insects of troides

    首次採用改進的ctab法提取裳鳳蝶基因組dna ，所提樣品完全可以滿足rapd及線粒體dna的擴增。
  13. There are three difficulties and key problems in this papaer : : the first problem is what is the dominance bearing of the leakage fractures, and how the bedrock fracture water distribute, the second is how to test the complex chemical behavior in experiment way and quantify the relative parameters, the last question is how to number the transportation of the element 90sr and its pollution to solve the three problems, this paper does lots of work and come to the prospective order, the creativities in this thesis as follow : ( 1 ) the dominance bearing of the leakage fractures and the distribution feature of the fracture water are ascertained based on rich geological data, these basal researches are very important, which are the premises to build the transport model of the fracture water in hae field

    本項研究工作的難點和關鍵問題有三個： hae處置場基巖裂隙系統中，導水裂隙的優勢方位是什麼，基巖裂隙水活躍帶分佈情況如何；怎麼對核素遷移的復雜化學行為進行實驗室測試並取得有關定量化參數；怎樣數值化表現出溶質的遷移行為和污染情況本論文在解決以上三個問題上做了大量的工作，達到了預期的目的，其創新之處有以下三點： （ 1 ）通過地質資料的分析，首次提出了hae預選處置場基巖裂隙導水的優勢方位和基巖裂隙水活躍帶的大致分佈特徵。它是一個很重要的基礎性研究成果，是建立hae處置場水運動模型的前提。
  14. Firstly, the paper introduces the development and application of computer graphics & image technique, discusses the principle and method of cg and digital image processing, such as matrix of the graphic transformation, homogeneous reference frame, sampling and quantization of the image, file format of the image, template operation, etc. secondly the paper introduces the purpose and method of image enhancement processing, explains the each occasion of those methods such as threshold transformation, smoothing processing, sharpening processing, analyzes and contrasts the processing results of object image. thirdly, the paper introduces the method of mathematics morphologic, edge detection and thinning processing, attains character description of image and character dots of the contour. fourthly, the paper processes the coordinate transformation to character dots and basic splines fitting, imports correlative condition to devise meshing line and meshing track

    本文首先介紹了計算機圖形圖像技術的發展與應用情況，對計算機圖形學和數字圖像處理的一些基本理論和方法如圖形變換矩陣、齊次坐標系、圖像采樣和量化、圖像文件格式、模板操作等內容進行了討論：然後對圖像增強處理的目的和方法進行了介紹，對諸如閥值變換、平滑處理、銳化處理等方法的應用場合進行了說明，並對實物圖像的處理結果進行了分析與比較；接下來介紹了數學形態學方法、對增強后的圖像進行邊緣檢測的方法和圖像的特徵描述方法，並獲取輪廓的特徵點：隨后對獲取的特徵點進行坐標變換，並進行b樣條曲線擬合，引入相關條件生成齒輪副的嚙合線及嚙合軌跡：最後引入等值線和區域填充表示方法，並以等值線和區域填充的形式對弧齒錐齒輪嚙合模擬的載荷分佈情況進行了直觀的表示。
  15. The diagnosis program is made in visual c + +. the samples are trained with this network, during which the relationships between the network parameters ( such as rule number, study rate, expert network initial error and gate network error, circulation times and power index ) and learning error were probed into, and the outcome can provide the basis for network parameter selecting

    並採用visualc + +編制了系統程序，首先通過分層混合專家網路對故障樣本進行訓練，在訓練中對分層混合專家網路各參數（規則數、學習率、門網路中止誤差、專家網路初試迭代誤差、循環次數、加權指數等）與學習誤差平方和的關系進行了探討，其結果為樣本網路參數的合理選取提供了依據。
  16. It also studies the influencing factors including sampling frequency, pd waveform, decline time, time intervals between pd pulses, mother wavelet, center frequency of interference, entropy threshold value and snr. in addition, it applies wavelet packet method （ wpm ） for non - stationary signal de - noising in on - line pd monitoring and analyzes the processing results under different pd waveform, sampling frequency and noise level. firstly, the curve of pd

    基於小波包變換的非平穩信號消噪演算法（ wpm ）已較為成熟，本文將其應用於局部放電在線監測，通過研究其對不同局放波形、采樣率、噪聲水平下的處理效果，首次提出了理想白噪聲條件下提取局部放電信號的曲線，分析了各種因素對該演算法下信號失真的影響。
  17. Using error back propagation algorithm. the limitation of the bp net is also improved ; 2 > when prediction with little training sample set and large variable size is concemed, this paper abstracts the prime factors from the training sample set using rough set theory, then only inputs the prime factors into ann. this diminishes the size and the input nodes number of ann

    對于即網路本身易陷入局部極小點及收斂速度慢的問題，在文中也得到了改進； 2 、對于財政轉移支付中標準收入的測算屬于多指標小樣本的預測問題，文中首次利用粗集理論對初始的指標體系進行約簡，提取出關鍵性的因素作為神經網路的輸入。
  18. It next makes a comprehensive and thorough discussion and analysis of the issues both culture autonomy in the era of information globalization and state image in the course of international communication respectively and it further proves such facts with arguments as the imbalance of information resources flowing and the inequality of information resources being shared in the globalization era. to strive for the culture autonomy and protect the variety of each culture is considered as one of measures for defending state sovereignty and economic interests. the paper finally concludes that one state or nation can neither fully obtain the real equality during international communication, nor more effectively defend its own state image and the culture autonomy without improving its comprehensive national power and communicating its ideas and values on the equal basis with other countries

    本文首先對比、闡述了信息全球化與國際傳播之間的關系；其次對信息全球化中的文化主權問題和國際傳播中的國家形象等問題進行了全面而深入的探討和分析，進一步論證了在當今信息全球化時代依然存在著信息資源全球化流通的不平衡，信息資源共享的不平等，爭取文化主權和保護各國文化的多樣性是維護各國國家主權和經濟利益的舉措之一；本文最後得出結論：一個國家或民族只有提高了自己的綜合國力，只有當它能夠與其他國家或民族同等地傳播自身的觀念和價值的時候，才能在國際傳播中取得真正的平等，才能更有效地維護自己的國家形象和文化主權。
  19. Porous silica, especially silica bonded phases ( sbp ) of hplc, was also introduced to spme as fiber coating, which had higher extraction capacity, shorter analysis time and higher sensitivity. in this paper, we introduced novel mesoporous material c16 - mcm - 41 to prepare spme fibers

    本文首次將c _ （ 16 ） - mcm - 41介孔材料用作spme纖維塗層，製成萃取頭，並以此萃取測定了環境樣品中的多環芳烴。
  20. But james bradley, the assistant editor of the guinness book, said queen s achievement had taken a comparatively short time : elvis presley first charted in 1956 and the beatles first made the chart in 1963

    但吉尼斯世界記錄大全的助理編輯詹姆斯布拉德利表示，皇后樂隊是在相對較短的時間內取得這樣的成績的：貓王首次上榜是在1956年，而披頭士則是在1963年。
分享友人
分享到 Line

分享到臉書