sampling efficiency 中文意思是什麼

sampling efficiency 解釋
采樣效率
  • sampling : n. 1. 取樣（品），取標（本）〈指行動或程序〉。2. 樣品，標本。3. 剽竊拼湊歌曲。
  • efficiency : n. 1. 功效。2. 效率；效能；實力，能力。3. 【物理學】性能。
  1. The company is specialized in the production of small diameter valve suitable for electrical station as well as sampling device and automatic feeding device for firepower electric plant, stop valve for high temperature and high pressure condition, throttle valve for high temperature and high pressure condition, counter - pressure high efficiency cooler, bi - screw reducer, fine adjustment valve together with pipe break, stop valve, diaphragm valve, plug - in speedy connector, ball valve and various special valves in addition to meter connector

    公司主要專業生產小口徑電站閥門及火力發電廠的爐內化學檢測集中取樣裝置、爐內自動加藥裝置，高溫高壓截止閥，高溫高壓限流閥，反壓式高效冷卻器，雙螺桿減壓閥、微調閥等取樣裝置件和石油化工行業使用的管道閘閥，截止閥，隔膜閥，承插式快速接頭，球閥及各種特殊閥門，儀表接頭等。
  2. Generalizing and applying this equipment, we can make general dredge and tow wire rope safer, and greatly improve the succeeding rate and efficiency of sampling

    可以使常規拖網取樣器和牽引鋼纜更加安全，並大大提高拖網作業的成功率與效率。
  3. Designed to provide users with the most current data and to ensure cost and time efficiency throughout operations, this sampling of datastream 7i features augments a company s ability to increase returns on investment and productivity

    以為用戶提供最及時的資料，在運營的各個環節都能實現成本和時間效率為指導思想， datastream 7i的這些特徵無疑將增強企業提高投資回報率和生產力的能力。
  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. And then we bring forward an approach to get the probability of steady - state based on gauss - seidel method and dynamic row - column techniques for the application of simulation in safety " analysis, sampling techniques for sparse events are discussed, and importance sampling method is brought forward to increase sampling efficiency

    論文提出了基於gauss - seidel方法與動態行列技術的分析方法。在模擬方面，主要探討了安全性定量分析中稀有事件問題的抽樣技術，並提出採用重要性抽樣法，以提高抽樣效率。
  6. In the section of experiment, we focused on the research of optical system of optical parameter oscillation, computer controlling data sampling closed - circuit system and technology of computer controlling feed - back. in the section of optics, we used present condition to do the experiments about optical parameter effect and got a series of characteristic curve on power transition efficiency and output power

    本文的實驗部分主要側重於智能化光參量系統的光學部分、計算機控制數據採集閉環系統以及計算機控制反饋技術的研究。在光學部分，本論文利用現有實驗條件進行了參量振蕩器頻率調諧的研究，得到了調諧曲線，並做了輸出參量光的能量轉換效率以及輸出功率的實驗，得到一系列特性曲線。
  7. Therefore, how to get the near - field sampling data quickly and accurately is of great importance for improving the efficiency of the near - field measurement technique

    如何在保證精度的前提下，加快近場數據采樣的速度是一個值得研究的理論和實際問題。它對提高近場測量的效率有重要的意義。
  8. To improve efficiency of reconstruction, the method of image collection that collected objects on the revolving flat roof is pegged and transform angle and distance is designed, and relation in sampling images. yawp of images is removed by dealing with intensity correlation and smoothness

    為了提高重建效率，本文採用將重建對象固定在旋轉平臺上，通過角度和距離變換進行圖像采樣的方法，加強了采樣圖像之間的聯系;通過灰度處理、平滑化等預處理來消除噪聲，為后續的特徵提取和特徵匹配打下了良好的基礎。
  9. Automatic tester for dial gauges is an intelligent instrument unified mechanism light and electronic. the grating displacement sensor that has high accuracy ( length gauge ) and camcorder is image sensor consummately automatic sampling is adopted. it is controlled and handled data by computer. so it has realized the intelligence and automation of calibrating course. the instrument has features of high precision, efficiency, flexible and convenient in operation, and so on

    指示表自動檢定儀是機、光、電一體化的智能化儀器，採用了具有高精度的光柵位移傳感器（長度計）和ccd攝像機作為圖像傳感器完成自動采樣，用計算機進行控制與數據處理，從而實現了檢定過程的自動化和智能化，使儀器具有高精度、高效率、操作靈活、使用方便等特點。
  10. An significant symbol has been used to determine the technique of 3 - d discontinuities network modeling of rock mass is good or not, which is to check whether the model can reappear the reality situation of rock mass or not, in order to make the 3 - d network model to meet the need of the actual rock engineering, the methods to verify the result of the modeling are required, one of the method to be used is to compare the figures between the section of the numerical model and the sampling window of in - situ model, the second method to be used is verify the data set between the numerical model and field data, only if the verification obtained a good precision, then the model can be considered as a efficiency model, and it can be applied into the actual rock engineering

    摘要巖體隨機不連續面三維網路模擬技術成熟與否的一個重要標志就是最終的網路模型是否能夠較真實地再現巖體的實際情況，為了使三維網路模型的結果能夠真正地應用於實際工程，就必須對模擬的結果進行必要的檢驗，檢驗的辦法就是將模擬出的模型剖面圖形與原型測量窗口的圖形進行圖形對比，或者將原型的觀測數據與模型的測試數據進行數據對比，當這種檢驗達到精度時，模擬出的模型為有效模型，可以投入工程實際應用。
  11. A new sign test based on double - ranked set sampling is proposed, and its asymptotic distribution was obtained ; and the asymptotic efficiency relative to under srs and rss was discussed, which show that this test had higher efficiency

    摘要提出基於重排序集抽樣的符號檢驗，給出相應的極限分佈，並討論了相對于基於簡單隨機抽樣和排序集抽樣的符號檢驗統計量的漸近效率，得出此檢驗具有較高的功效。
  12. Analyzed the signal of 3 - d spatio - temporal sampling in spatio - temporal domain and frequency domain, according as the base principle of sampling, adopted more - dots - marked method, gained random spatio - temporal sampling matrix of digital video signal, it proved that arithmetic is accurate and efficiency

    在時空域和頻域上分析三維采樣的數字視頻流信號，以采樣矩陣方法為依據，採用多點標定方法，得到任意數字視頻流的時空采樣矩陣。計算機模擬實驗證明了該方法的正確性和可行性。
  13. It has been shown that this updated sampling and measurement method, which can measure the content of tar and dust individually, appears much more precise and credible, particularly aiming at the characteristic of heavy tar and dust content in biomass gas. this clarification system that adopts two - level shell and tube condensers and one tar removal filter, has the advantages of high removal efficiency ( 97 % ~ 98 % ) and low operating cost. besides, it has been made more environmentally friendly considering that wastewater from condensers has measured up to related effluent state standards after being disposed in tar clarifier - tank

    多次試驗表明：針對生物質氣浙江大學碩士學位論文含焦油灰塵量大的特點，改進的生物質焦油取樣測量法可實現焦油和灰塵的分離，有較高準確性和可靠性；採用二級管殼式冷凝器與一級乾式過濾器結合的燃氣冷凝凈化系統不但凈化效率高（ 97 98 ） 、運行費用低，而且含焦油廢水二經過澄清池澄清處理后可達到國家相關污水排放標準，避兔了濕式凈化系統的水污染；兼顧凈化效果、經濟性和減少污染考慮，採用以半焦為吸附材料的于式凈化系統可以達到炊用燃氣對焦油含量的要求。
  14. A sampling process is designed to implement the computation of the observation likelihood, in which a proposed relation model between head and face of their position and size is used so as to achieve improved accuracy and efficiency in the fusion

    其中，利用檢測器提供的姿態信息對頭部和人臉的位置大小關系提出了一種模型，提高了觀測模型融合的準確性和高效性。
  15. This paper studies on used the ac servo system based on ti dsp ( lf2407a ) and the foc and digital signal processing thorem, achieves following results : algorithm. we employ svpwm ( space voltage pwm ) algorithm, improve the efficiency of the electric source, and decrease the harmonious elements. we build the mathematic model of the system and simulate it on matlab platform, dsigne segmented pid regulator to adapt variable speed and widen the speed range. measurement. the velocity and electric current measuring, we adopt multi - sampling - rate and digital filter principles. as more improvements we make, the whole system gets a good results. pc control. the complete controlling system can be controlled remotely. so we develop the pc controlling program.

    採用磁場定向脈寬調制演算法，提高了電源利用率，降低了逆變電壓的諧波，改善了電機的運行特性，降低了對電網的污染；在matlab平臺上建立了交流永磁同步伺服電機和電壓空間矢量脈寬調制控制系統的數學模型，在模擬的基礎上，對傳統pid調節器進行了改進，提出轉速調節器和電流調節器採用分段pid結構，根據給定轉速所處的區間，自動選擇相應pid調節器的參數，拓寬了調速范圍，提高了控制精度。
  16. It is a synthesis combined with optical, mechanical and electrical knowledge. under the control of computer this meter not only can realize many noncontact measurements in high definition and efficiency without destroying object surface, but also can be easy to fulfill some automatic demands like dynamic sampling, real time processing, on - line measuring. so it will be well used in the modern industry measurement and has a wide prospect in the future

    在計算機控制下，光、機、電相結合的微厚測量儀，不僅能實現高精度、高效率的非接觸測量，不破壞被測物體表面，而且易於實現動態采樣、實時處理、在線測量等自動化要求，因而在現代化的工業測量中將具有廣泛的應用和前景。
  17. Digital down converting is one of the key technologies of software radio. it can improve the efficiency and reliability of communications. lt is also important to realize software radio receivers. the paper focuses on the technologies involved in digital down converting, such as integer sampling - rate conversion, non - integer sampling - rate conversion and carrier frequency offset estimation algorithm. on the base of these, the paper analyzes applications of digital down converting in the hsp50214b programmable downconverter. the hardware and sofeware of the application of digital down converting are also introduced

    數字下變頻技術是軟體無線電中的關鍵技術之一。該技術不僅有助於提高通信的有效性和可靠性，還對實現真正的軟體無線電臺有著重要的意義。本文對數字下變頻所涉及整數倍采樣率轉換、非整數倍采樣率轉換和載波初始頻差估計校正作了較深入的研究，並提出了一些實用高效的實現結構和演算法。
  18. According to the sampling survey of family businesses in zhejiang, we come to the following conclusions : on the relationship between family businesses governance structure and their performance, there is a tendency of seeking for remarkable short - term sales performance with lack of motivation of long - term development ; in the unlisted small and medium sized family businesses, the dominant shareholder does not present itself as a problem but as an advantage ; the clear ownership structure in family businesses can improve their performance remarkably ; the effect of improving the fairness of the decisions is much more than that of weakening the applicability of the decisions resulting from the outside consultant institution of family businesses, thus improving their governance efficiency

    摘要根據對浙江地區家族企業的抽樣調查研究，本文得到以下實證結論：在我國家族企業治理結構和經營績效關系方面：家族企業融入外部資本和管理資源都存在一個追求短期銷售績效的傾向；非上市中小家族企業並不存在「一股獨大」問題，而是具有「一股獨大」優勢；家族企業股權分割清晰能顯著提高企業績效；家族企業外部顧問制度的「公正性效率」的提高顯著大於「適用性效率」的降低，家族企業的治理效率得到改善。
  19. Furthermore, this thesis not only evaluates the sampling efficiency and the effective sample size, but also enhances the practical operation capability of massive datasets " dataming through particle filtering

    另外，本文還評估了抽樣效率和有效抽樣容量等問題，使用了極小量過濾方法，進一步增強了對巨型數據集的數據挖掘的實際操作能力。
  20. In order to improve the efficiency, we use the sampling points of the sequences to compute the distance of two sequences. the distance of sampling points is used to filter the sequence of the database, so the similarity searching space is reduced and the efficiency of the query is improved

    在保持序列變化模式的前提下，使用抽樣點來計算序列之間的dtw距離，並依據抽樣比率和查詢參數選擇過濾距離對序列數據庫進行過濾，實驗結果表明，抽樣過濾的方法明顯提高了查詢效率。
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