抽樣成數 的英文怎麼說

中文拼音 [chōuyàngchéngshǔ]
抽樣成數 英文
sampling fraction
  • 抽 : 動詞1 （把夾在中間的東西拉出; 提取） take out （from in between） 2 （從全部里取出一部分; 騰出） ...
  • 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
  • 成 : Ⅰ動詞1 （完成; 成功） accomplish; succeed 2 （成為; 變為） become; turn into 3 （成全） help comp...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 抽樣 : [統計] sample; sampling; specimen; samples draw
  1. In addition, a low - pass filter can be employed prior to the digital - to - analog ( d / a ) stage to smooth the stairstep effect resulting from the combination of a low sampling rate and quantization

    另外，在數模轉換（ d / a ）級前用低通濾波器可以平滑因低的抽樣頻率和量化造成的階梯效應。
  2. Programs that have a lot of boilerplate code that cannot be abstracted into functions

    有大量樣板文件的程序，但是無法抽象成函數
  3. Fpga and dvb standard are introduced firstly, dvb - c standard and composition of its system are analyzed completely, development of modulator structure and dvb - c digital modulator composition are presented, more over, analysis of respective modular are given. then, principle of dvb - c digital modulator system are presented, they are error control technique 、 mqam 、 nyquist rule and root raised cosine filter 、 window design method for fir filter 、 multi - rate signal processing ( integer interpolating, conversion of fractional sampling, equal conversion of net structure, polyphase structure for filter, poly - phase structure for interpolator, multi - stage implementation of samplying conversion ) 、 distrubited algorithm 、 cic filter 、 dds 、 cordic algorithm

    接著，專門利用一個章節闡述了dvb - c前端調制系統原理，他們了差錯控制技術、多進制調制（ mqam ） 、 nyquist準則與平方根升餘弦濾波器、有限沖擊響應濾波器的窗函數設計法、多抽樣率信號處理包括（整數倍內插原理、分數倍抽樣率轉換、網路結構的等效結構、濾波器的多相表示、內插器的多相表示、抽樣率轉換的多級實現） 、分散式演算法、 cic濾波器、直接數字頻率合成（ dds ） 、 cordic演算法。
  4. Its core arithmetic is i d3 and ftart. to guarantee the sample data as science, entireness, typical, and accurate, the author selected the samples from the investigating network of shanghai statistic bureau, which were composed of 300 households in total and 292 effective samples were defined finally. the research lasted a period of one year and data collected within each season

    為確保研究樣本數據的科學性、全面性、典型性和準確性，筆者結合由本人主持完成的香港理工大學itc的「中國家庭服裝消費結構狀況及影響因素」的課題研究，採用了上海統計局家庭計劃調查網路，抽取樣本300戶，回收有效問卷292份，整個調查歷時一年，分四季完成。
  5. In this paper, using statistical sample survey and statistics theory and consulting the standard of china industry and the situation of flexography, i have done the main tasks as follows : 1

    本文利用抽樣調查和數理統計原理，參照中華人民共和國行業標準並結合西安第一印刷廠的生產實際完成了以下工作： 1
  6. Therefore, based on the key project ? esearch on some basic problems on quality control and source tracing in modern manufacture ? ( no. 59735120 ) sponsored by national natural science foundation, a deep research is made in this dissertation its branch subject ? the theory and technology of zero - waste control. the main work and achievements are as follows : 1. on the basis of the introduction of common quality control methods, some key problems about statistical quality control are elaborately discussed ; a method to decide the quality control line is developed ; a mathematical model based on the sampling plan of multi - variation of product quality is set up ; the process manufacturing condition of quality control chart is discriminated using the theory of fuzzy diagnosis

    為此，本文基於國家自然科學基金重點資助項目「現代製造質量控制、溯源若干基礎問題的研究」 （項目編號： 59375254 ） ，重點對其中的子課題? ?零廢品控制理論和技術進行了深入的研究。論文的主要工作和取得的成果如下： 1在介紹了常用質量控制方法的基礎上，對統計質量控制的幾個關鍵問題進行了詳盡的討論，提出了質量控制界限的確定方法，建立了基於產品質量多變異的抽樣方案的數學模型，利用模糊識別理論對質量控制圖工序加工狀況進行了判別。
  7. The last part demonstrates the scientific and feasibility of the sharing mechanism model of education cost and construction and execution blue print of the tuition policy by analyzing real data with the rules of payment capability and profit capability and combining the suggestions and opinions of graduates at school, teachers and the outside people. the real data are got from questionnaire, visiting and analyzing individual case in x x university

    論文最後一部分，採用問卷調查、深入訪談和個案分析等實證研究方法，對大學的在校研究生進行抽樣調查，採用網路調查數據，用支付能力原則和收益能力原則對獲得的數據加以分析，並綜合在讀研究生、高校教師和社會人士的意見和建議，對研究生教育成本分擔機制模型和學費政策方案的合理性、科學性和可行性進行論證。
  8. Inaccuracies in survey data attributable to “ the luck of the draw " in creating a probability sample

    在產生概率抽樣時由於抽樣不足而造成的數據偏差
  9. 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。
  10. By sampling survey method, from the aspects of bibliographical availability, the ratio of book forecasting, fields for description, description format, acquisition costs etc., the paper makes a comparative analysis among the main chinese books acquisition bibliographies, including xinhua book news, cip data, national new books information, and bibliographies compiled by publishers, and hope can provide useful experience information for the selecting of library acquisition bibliography

    摘要本文採用抽樣調查方法，對新華書目報（社科版與科技版） 、 cip數據、全國新書目和出版社自編書目等國內主要中文圖書采訪書目，從書目可供性、預告率、圖書預告征訂的實際可供時間跨度、著錄欄位、著錄格式（排版顯示格式） 、採集成本等方面進行比較分析，為落實《圖書館采訪工作規范》中的「選擇出最適合於本館使用的書目」提供借鑒。
  11. For example, a company that wanted to randomly select 50 employees to receive prizes in a lottery could use the row sampling transformation on the employee database to generate the exact number of winners

    例如，如果公司需要以抽彩給獎法隨機選擇50名雇員接受獎勵，則可對雇員數據庫使用行隨機抽樣轉換來生成準確數目的獲獎者。
  12. Firstly, on the base of analyzing psk ' s theory and audio - card ' s constitute and data transfers, bdpsk and qdpsk soft - modulation and soft - demodulation systems based on audio - card are studied and implemented, including generating digital carrier sequence, synchronizing carrier, designing filter, sampling and judging, etc. the system adopts coherent demodulation method, synchronizing carrier adopts costas loop

    本文首先分析了調相信號調制解調的基本理論和多媒體計算機（ mpc ）聲卡組成原理及數據傳輸等方面的內容，然後研究並實現了基於計算機聲卡的bdpsk和qdpsk信號軟體調制解調系統，內容包括數字載波序列的產生、載波同步、濾波器設計，信號的抽樣判決等。
  13. To obtain the prior distributions of parameters by bootstrap, i proposed the integrated sampling method to generate bootstrap samples. the method simulates a markov chain to describe the state changing procedure based on the failure time sampled by monte carlo method. and the posterior distributions of parameters are obtained by markov chain monte carlo ( mcmc ) method

    為了應用自助方法確定參數驗前分佈，提出了運行故障時間和狀態的綜合抽樣方法生成自助樣本，該方法基於試驗數據用蒙特卡洛方法對故障時間進行抽樣，在故障時間抽樣值的基礎上，模擬馬爾可夫鏈表示系統狀態變化過程。
  14. Based on the theory of charge calibration and sample and reconstruction of frequency limited signal, the scheme of adopting direct digital synthesizing technology and technology of computer is put forward in the paper. the design of hardware and software is described in detail, the error of the outputs signals of the high precision charge calibrator has been analyzed in theory

    文中基於電荷校準的原理及帶限信號的抽樣與重構理論，提出了採用直接數字合成技術與計算機技術的整體設計方案，詳細講述了硬體電路與系統軟體的設計過程，並對高精度電荷校準儀輸出信號的誤差進行了理論分析。
  15. In this paper, subjects mainly focused are as follows : to meet with the requirement of forward business and the establishment of mid - long term generation planning of hydroelectric plant, the yearly runoff and the monthly runoff are studied in this paper, providing many kinds models that suited to min - long term runoff forecast, including the time series analysis, the nearest neighbor bootstrap regressive model, the grey topological model, recession curve model, threshold auto regression, mean generating function, and ann model etc. the forecast result proves that these models are useful

    本文從以下幾方面進行了較為深入的研究： （ 1 ）為了滿足水電廠的期貨交易及編制水電站中長期發電計劃的需要，本文對年、月徑流預測進行了研究，提出了徑流中長期預測模型，包括：時間序列模型、最近鄰抽樣回歸模型、灰色拓撲預測、退水曲線模型、門限自回歸模型、均生函數模型及神經網路模型等，從預測成果來看，效果較好。
  16. In this study, a scale was used to measure a sample of 278 students selected from a middle school by randomly sampling and selected 80 students who have the similar score of gse

    本研究採用隨機抽樣法，選取中等數學成績的初二學生278名，然後運用有關問卷，從中篩取自我效能得分相當的被試80名作為被試。
  17. Digital audio aliasing is introduced when one attempts to record frequencies that exceed half the sampling rate

    在錄音頻率超過抽樣頻率的一半時，會造成數字音頻混疊失真。
  18. Using computer for random selection of 8 - digit telephone number, the survey was conducted through telephone interviews with over 2, 500 people

    問卷調查利用電腦隨機抽樣八位數字電話號碼，以電話方式成功訪問超過2 ， 500名香港市民。
  19. The indicators system involes seven subsystems, economical level 、 population and employment 、 resources and environment 、 technology and education 、 culture and health, quality of life, social security and safeguard subsystem. then took globle principal component analysis, composite index analysis and clustering analysis as tools in empirical study. this aimed at enriching the content of the comprehensive evaluation indicators system of the social development level ; made it porttay that the social development level of sichuan

    社會發展水平研究方法，本文採用描述統計法、加權指數法、全局主成分分析方法和聚類分析方法相結合的方法。本文的資料來源於四川省統計局的抽樣調查，選取了四川省1999 ? 2004年社會發展水平數據、四川省各市州2003年、 2004年兩年的社會發展水平數據。
  20. In this paper, the theories and techniques of data quality control are thoroughly studied by taking pudong construction and management geographic information system ( js - gis ), including error analysis and accuracy evaluation of digitized data, sample tests of housing surveying product, the principle and method of disfigurement measurement of attribute data based on sampling theories, and total quality control techniques of gis data. these methods are implemented in the construction of js - gis. the main contents are as follow : 1

    本論文以浦東建設管理地理信息系統（ js _ gis ）為例對gis數據質量控制的一些具體內容進行了研究，包括數字化數據誤差分析以及精度評定、房產測量成果的抽樣檢驗、屬性數據缺陷率度量的抽樣原理和方法、 gis數據的全面質量控制方法，並將這些方法應用於js _ gis中，主要內容有： 1 、介紹js _ gis的系統組成，對js _ gis中數據的主要構成以及數據採集進行分析。
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