時間抽取 的英文怎麼說

中文拼音 [shíjiānchōuqǔ]
時間抽取 英文
decimation in time
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 間 : 間Ⅰ名詞1 （中間） between; among 2 （一定的空間或時間里） with a definite time or space 3 （一間...
  • 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） ...
  • 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...
  • 時間 : time; hour; 北京時間十九點整19 hours beijing time; 上課時間school hours; 時間與空間 time and spac...
  • 抽取 : abstract
  1. Preservation, identification, extrication and documentation of computer evidence ; giving ability to gather files, lltbkfdt collect backups of data, gives tools to look at what was going on with data

    保存、鑒別、抽取和歸檔計算機證據；提供能力來搜集文件和數據備份，提供工具來觀察過去的時間里發生的與數據有關的事件。
  2. Afcd later found that the chickens came from a local farm. the department immediately implemented quarantine measures in the farm and stopped the farm from sending out any chicken. blood samples were taken from the chickens for testing

    另一方面，漁護署在追查下發現該批雞來自一間本地農場，署方即時禁止該農場輸出任何雞只，並在該農場進行檢疫措施，從雞只抽取血液樣本進行化驗。
  3. 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。
  4. Chronicle of chinese literature is the maximal composing in chronicles of chinese literature. we may know its several ecumenic characteristics by two stochastic swatches, 1704 and 1796

    摘要十八卷本《中國文學編年史》是迄今為止規模最大的中國文學編年著作。該書的總體特點可以由隨機抽取的兩個時間點康熙四十三年甲申（ 1704 ）和嘉慶元年丙辰（ 1796 ）窺知一二。
  5. Even if you don t have nice hot - swappable drives or removable drive cages, it takes just a couple of minutes to pop the case open and hook one up

    即使您沒有熱插拔硬盤或者抽取式的硬盤架，打開機箱安裝一個硬盤也用不了多長時間。
  6. Rational control of the pump ' s work and rest time is the key to solve the problem of void pumping. this essay gives theoretical analysis and cost comparison of every detective method, considers power detection as the most effective method, and puts forward several ways of power consumption and effectiveness power consumption at the same time. the designed electricity saving controller integrate all the above four methods, and it can work with different methods by switch between automatic and manual to broaden its accommodation

    解決油井空抽現象的關鍵是合理控制開機時間與停機時間長度，本文對各種檢測方法進行了理論分析及成本比較，認為功率檢測最行之有效，同時提出了功率檢測的幾種實現方法，即瞬時功率法、人工電耗法、設定功耗法及效益功耗法，所設計的節電控制器集以上四種方法於一身，可通過自動手動切換採取不同的功率檢測方法，使其適應范圍增寬。
  7. Second, i transform seismic - electrical data and volcano data worldwide from 1991 to 1999 to appropriate statistic models and analyze them by using the theories of random process and correlation. the results of the study testify that it is correlative between the seismic - electrical abnormal rectangle pulsation signals and volcano eruptions. so the study is a useful exploration for which whether we can monitor and observe worldwide volcanic activity in the whole

    接下來應用隨機過程與相關理論的知識，以1991年1月1日至1999年12月31日為統計時間段，以北京工業大學地震研究所南北方向地電脈沖儀所記錄到的地電異常矩形脈沖信號和全球范圍內的火山噴發事件為研究對象；抽取適合分析、又具物理意義的多個統計模型；並對信號模型與噴發模型間進行了詳盡的相關性分析。
  8. Lastly, the dissertation designs a rank - reduced blind space - time 2 - d rake receiver using time extraction which has not only the capability of space - time equilibrium but also reduces the convergence time of adaptive array and the rank of correlated matrix of the received data

    最後，設計了一種時間抽取降秩盲空時2 - drake接收機。分析了其性能和參考信號的提取方法。該接收機不但具有空時均衡的能力，而且降低了陣列的收斂時間和接收數據相關矩陣的秩。
  9. The choice of pumping system depends on required pumping speed, ultimate pressure attainable(in a reasonable time).

    泵系統的選擇取決于所需要的抽速，能達到的極限壓強（在適當的時間內）。
  10. The choice of pumping system depends on required pumping speed, ultimate pressure attainable ( in a reasonable time )

    泵系統的選擇取決于所需要的抽速，能達到的極限壓強（在適當的時間內） 。
  11. A type of survey design in which one sample is drawn from the population at a point in time

    一種調查設計方法.每一個時間點從人口中抽取一個樣本
  12. The following algorithms have been proposed and tested in the thesis : 1 frequency selective fading : combine the isomorphism between the input space and the output space and propose a new approach to blind equalization of the channel. compared with conventional methods, the new approach offers lower computational complexity, better performance, and more robust against the over - determination of the system order ; 2 time selective fading : a new approach to the equalization of time selective channel based on the zero - forced equalizer is proposed which is more simple in its structure of algorithm ; 3 time - varying channel : using the instantaneous mean value changes of the output signal to extract the information of channel variations and model it using ar model, kalman filter is then employed to track channel variations, it bears faster ability in tracking the variation of tv channels ; based on the isomorphism between the inputs and the outputs and some of the approaches using in mimo system, a new algorithm of equalization of simo time - varying channel is proposed, which also share the merits of being robust against the over - determination of the system order ; model the time - varying channel using the multi - resolution decomposition wavelets, and then a blind identification method based " on the model is proposed ; at last, a new model for equalization and identification of mimo system is proposed

    主要工作在以下幾個方面： 1 、針對頻率選擇性衰落通道：結合輸入輸出空間同構關系提出一種新的頻率選擇性通道均衡方法，與傳統方法相比，該方法計算量更小，收斂速度更快，性能更優，且對系統階次的過確定表現穩健，具有實際均衡應用價值； 2 、針對時間選擇性衰落通道：提出一種基於迫零均衡的時間選擇性通道均衡方法，演算法結構簡單； 3 、針對時變色散通道：利用瞬態均值曲線提取通道時變信息，對之ar建模，利用卡爾曼濾波器跟蹤時變通道抽頭變化，可以快速跟蹤通道變化；基於輸入輸出空間之間的同構關系以及多輸入多輸出系統的處理方法，提出了新的單輸入多輸出色散時變通道均衡與識別演算法，同樣具有對通道階次過確定保持穩健的優點；結合小波多解析度分析提出一種基於小波模型的通道盲識別演算法；研究時變的多輸入多輸出系統的盲均衡與盲反卷積問題，給出一種時變系統處理模型。
  13. The apoptosis induced by extract of russula subnigricans hongo was investigated in little white rat liver and kidney cells by agarose gel electrophoresis. the result showed that agarose gel electrophoresis of dna extracted from poisoned little white rat liver and kidney cells revealed typical 180 ~ 200bp integer - fold " ladder " " bands. apoptosis induced by extract of russula subnigricans hongo was dose - and time - dependentthe result indicated that extract of russula subnigricans hongo could induce apoptosis in little white rat liver and kidney cells

    4 .用電泳技術研究亞稀褶黑菇粗毒液誘導小白鼠肝腎細胞凋亡，小白鼠亞稀褶黑菇抽提液中毒后，肝腎細胞. dna經瓊脂糖凝膠電泳出現180一200bp整數倍的ona梯形帶， 19 . 09 / l一28 . 59 / l范圍內，亞稀褶黑菇提取液誘導肝腎細胞凋亡表現出時間和劑量依賴性
  14. Discovery of association rules is an important class of data mining whose aim is to capture the co - occurrences of itemsets, the most important thing to do is to find the large itemsets effectively, because this is time consuming and will finally decide the efficiency of algorithms. so now the main study is emphasized on how to find the large itemsets with more and more few time

    關聯規則是從歷史的大規模的數據中獲得項集之間的相互關聯關系，抽取出有用的和感興趣的模式，主要任務是發現數據庫中的大項集，因為這個任務在大規模數據庫基礎上是耗時的操作，所以現在的主要研究方向都集中在大項集的有效生成上。
  15. Discovery of association rules is an important class of data mining whose aim is to capture the co - occurrences of itemsets, the most important thing to do is to find the large itemsets effectively, because this is time - consuming and will finally decide the efficiency of algorithms. so now the main study is emphasized on how to find the large itemsets with more and more few times

    關聯規則是從歷史的大規模的數據中獲得項集之間的相互關聯關系，抽取出有用的和感興趣的模式，主要任務是發現數據庫中的大項集，因為這個任務在大規模數據庫基礎上是耗時的操作，所以現在的主要研究方向都集中在大項集的有效生成上。
  16. Crm can help to find out and lock the best customer, and satisfy their needs and fulfil their wish effectively on the right prices and the right time, throughing the right way and providing the good product and service, because of lacking capacity of discover useful information which conceal in datas, enterprises have no way to convert datas into knowledge, it is impossible to help enterprises to improve their profit by using the valid, unknown and understanding information extracting from huge data base, but, in recently, with the increasing development of data mining technology, ever ything become into reality, also crm become one of the most developing area in the data mining application

    Crm是一整套的先進理念、方法和解決方案，提供的是一種創造出好產品、好服務、及時反應和提高客戶滿意度的能力，並且能夠幫助找到並鎖定最好的客戶，以正確的價格，在正確的時間，通過正確的渠道，提供正確的產品或服務，從而最有效地滿足客戶的需要和願望。由於缺乏發現隱含在數據中的有用信息的能力，所以企業無法將數據轉化為知識。要想從龐大的數據庫中抽取有效的、未知的和能理解的信息，來幫助企業提高效益，幾乎是不太可能的。
  17. Step up the frequency of taking water sample from the swimming pool from at least twice a day to every hour and consider closing the swimming pool temporarily when community infection rate is high

    社區感染率高的期間，應增加抽取泳池水樣本化驗的次數，從最少每天兩次到每小時一次，或考慮暫時關閉泳池。
  18. A water sample of the swimming pool should be taken at least once a month for testing during opening hours to ensure that the chlorine level and the ph of the water met the above standard

    于泳池開放時間內抽取池水樣本化驗，最少每個月一次，以確保池水的氯含量及酸鹼值符合上述標準。
  19. Remark : the detection sensitivity depends directly on the chamber volume and pumping down time. the system will be adjusted to your request in accordance with the leak test fixture

    備注:檢測的敏感度直接取決于真空箱的體積和抽真空時間。系統將根據您的測試卡具調整。
  20. Then taken four kinds of maps for examples, comparing with m - sequence, their properties are calculated, verifying the advantages of the chaotic sequence generated by the new method. after this, an improved scheme is discussed - - using m - sequence to change the sequence ’ s turn and verifying that the permutation parameters have effect on improving the sequence ’ s properties. in chapter 5, monte carlo simulation method is used to test performances of our sequences ’ applications in the given model of direct spread spectrum cdma system, and results of error rate of the system are given ; the comparing resuls of performances of anti - multi - access interference and anti - multi - address interference of different pn sequence is also shown in this thesis

    本文首先對擴頻通信中常用二進制偽隨機序列的產生方法、性能特點進行了總結，指出了現有二進制偽隨機序列的應用局限性;其次，根據混沌非線性系統特徵，深入研究了混沌數字序列的產生方法;在此基礎上，提出了一種新的產生方法中間抽取法，然後，以四種混沌映射系統為例，對其所產生的混沌數字序列進行了偽隨機特性實驗數據分析，並與m序列進行比較，結果說明了混沌數字序列代替傳統擴頻序列的優點，同時驗證了新方法的可行性。
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