有效種數 的英文怎麼說

中文拼音 [yǒuxiàozhǒngshǔ]
有效種數 英文
effective number of species
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 種 : 種名詞（姓氏） a surname
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 有效 : effective; valid; efficacious
  1. As a mix - mode chip, the application - specific controller including analog signal and digital signal processing block can be applied to receiving, amplifying, processing, controlling signals of pir, and offer a wide application in some fields. in analog circuits, by sub - threshold mosfet, a self - bias current source is presented, which has a high power supply restrain ratio and a complementary to absolute temperature characters

    這款晶元是一款數模混合晶元，包括模擬信號處理（含模數介面模塊）和數字信號處理兩大模塊，完整實現對紅外信號的接收、放大、處理、控制，產生有效數字電平驅動繼電器、可控硅等負載，應用於自動燈等多種場合。
  2. For increasing yield per plant, relation of effective ear numbers and ear length should be coordinated ; the direct and indirect effect or relative importance of various characters to grain yield should be made clear for providing scientific evidences to choose and compose parents of two - row hulled malting barley

    為了提高單株產量應注意協調好有效穗數與穗長這一對主要矛盾；明確各性狀對籽粒產量所起的直接和間接作用及其相對重要性，確定主攻方向，配製各種優勢組合，為大麥親本選配提供科學依據，從而達到二棱型啤酒大麥預期的育種目標。
  3. Random process theory is a kind of effective mathematical tool to handle random vibration problem. through frequency spectra and time domain analysis for random course, the seemed complex vibration time - history can be transferred to trigonometric function series, thus makes it have certain periodic feature

    隨機過程是處理隨機振動問題的一種有效的數學工具，通過對隨機過程進行時域分析和頻譜分析，可以將看似非常復雜和毫無規律的隨機振動表示為三角函數的級數形式，從而使其具備了一定的周期性特徵。
  4. With fast development of our country " s gas industry and air ' s increasingly serious contamination in city, using gas instead of coal and supplying energy in high efficiency and cleanliness has become necessary way in city. there are different problems in the current heating ( air conditioning ) systems. in the cogeneration system, heat and power affect each other, heating - pump heating ( aie conditioning ) system can not satisfy the peak load very well, the cost of gas fuel in boilor heating sestem is so high. the high generating efficiency of the diesel - engine two - sourse heating ( air conditioning ) systems is limited in range of 100kw - 1000kw, the heating scope is so limited. combined cycle of two sourse heating ( air conditioning ) system is most suitable selection to buesness community with big scope my paper aim at this syetem ' s primary question when it is applied in our country - - - - bringing project into execution and technology economy feasibility and off - design performence, combined with a certain demonstrating project in beijing buesness community, going along with calculating and analyzing, drawing out some efficient datas and conclusions, based on this, bringing out primary alements affecting combined cycle of two sourse heating ( air conditioning ) system " economics

    熱電聯產系統熱電相互牽連，熱泵供暖（空調）系統不容易很好地滿足尖峰負荷，鍋爐供暖系統供熱中天然氣燃料構成的成本過高，內燃機雙源供暖（空調）系統的高發電效率僅限於100kw - 1000kw負荷范圍，供熱面積有限。對于大面積的商業園區、居民小區，燃燒天然氣的燃氣-蒸汽聯合循環雙源供暖（空調）系統是最佳選擇之一。本論文針對該系統在我國應用時的主要問題- - -方案的技術實施與技術經濟可行性，結合北京某一商業園區示範工程，進行了系統的計算與分析，得到了有效的數據與結論，在此基礎上，提出影響聯合循環雙源供暖（空調）系統經濟性的主要因素，並進行敏感性分析，得出有益的結論；最後通過各種供暖方案的比較分析回答了某些人對該系統的疑慮和不解，並指出系統的優化方向。
  5. The minimum shear resistance of beams in the paper is close to the one in the code for design of concrete structures " gb50010 - 2002 '. according to the actual project, the destroy of 448 kinds of beams are analyzed by computer by taking account of the effective coefficient " " of the strength of concrete confined by hoops, the relationship with the section property of beams, the critical point of the arch - rib failure transiting to the shear - compression failure which is advanced in the anti - theory, and the contribution to the beam ' s shear resistance of the concrete in the shear - compression zone

    引用箍筋約束混凝土的有效系數，利用其與梁截面特性的關系並結合理論分析中提出的梁剪壓破壞與斜壓破壞的分界點，同時考慮了剪壓區混凝土的抗剪貢獻，從工程實際出發，編程擬算了448種梁構件的破壞情況，計算結果表明，梁發生在剪壓破壞范圍內的最大抗剪承載力值比混凝土結構設計規范gb50010 - 2002值略高。
  6. During the last two decades, homotopy continuation method has been developed to be a reliable and efficient numerical algorithm to solve such problem

    同倫連續方法近20年來已經成為求解多項式系統全部孤立解的一種可靠而有效的數值演算法。
  7. In order to calculate synthetic seismograms in a layered half - space with the sources and the receivers at close or same depths, an efficient numerical integration method - the peak - trough averaging method ( ptam ) is proposed, based on the repeated averaging method

    摘要為了計算在震源和接收點深度相同或相近情況下分層半空間介質中的合成地震圖，在重復平均法的基礎上加以改進，提出一種有效的數值積分方法峰谷平均法。
  8. Recently, application of an innovative and efficient data analysis techniques in system identification and damage detection of civil structures is receiving much attention

    近來一種新型而有效的數據分析技術? hilbert - huangspectralanalysis （ hhsa ）在結構的系統識和別損傷診斷的研究中受到了廣泛的關注。
  9. The determination of toxic organic compounds that belong to the list of environmental priority organic pollutants according to us epa in landfill leachate from a landfill in guangzhou provided useful information for more effective treatment on the leachate

    對廣州某垃圾填埋場滲濾液中的有機污染物進行具體的定量分析，了解滲濾液中有毒有機成分的濃度和種類，對採取有效措施防治垃圾填埋二次污染提供有效的數據。
  10. The decision tree is effectively used in the classification of the data mining

    決策樹是一種有效的數據分類方法，它的構造方法很多。
  11. Based on the advanced and popular portable instrument ’ s kernel technology along with the embedded operational system such as windowsce system platform, aiming at human ’ s biomedical signal ? measure of blood pressure parameter, with the msp430 microprocessor which has powerful ability of transaction and achievement the real - time data pick and process. on up - computer, using platform builder tool customizing the windows ce platform using the vc programming language finishing the application software to multi - parameter monitor, the whole system achieving the data ’ s sample, real time disposal, analysis, display, store and communication of biomedical signal and imitate the system

    整個應用系統基於目前流行的便攜式儀器的核心技術- windowsce系統平臺，針對人體的生物醫學信號（血壓參數的測量） ，運用處理能力強大的msp430單片機對實時數據進行採集、處理，在上位機部分用platformbuilder工具定製了windowsce平臺，利用vc語言編寫了多參數監護儀的應用軟體，在數據採集、處理模塊中，針對血壓脈搏波這種生物醫學信號特點，合理運用msp430單片機硬體資源及其功能特性對採集的數據進行有效的數據濾波處理，得到了有效的血壓生理參數。
  12. In the open computer network environment, it has become much urgent for us to provide efficient copyright and security protection means for the digital information products. so the digital watermarking technology has been put forward for this in recent years

    圍繞這一問題，近幾年國際上提出了一種新的有效的數字產品版權保護和安全性維護的新技術? ?數字水印（ digitalwatermarking ）技術。
  13. Generally, the etching rate for different local surface is dependent of the local slope of the surface. in this paper, we call this < wp = 6 > phenomena quasi - direction effect. to reduce the difficulty, we use a mathematical model for the surface shape analysis in this paper

    為了減小分析的難度，本論文採用了一個有效的數學模型，分析了在刻蝕工藝中基底自身面形輪廓的曲線形狀對基底局部區域的刻蝕速率產生的影響，我們稱這種影響為準單向刻蝕效應，並通過對數學模型的理論分析和計算機模擬得出受此影響而產生的面形形狀，並將結果與實驗進行對比。
  14. In this case, the day part is changed to the last valid day in the resulting month of the resulting year

    在這種情況下，天數部分更改為得到的年月中的最後一個有效天數。得到的
  15. At present, there is no one effective numerical computing technology come to deal with that the mechanics model of material transfers from continuum to non - continuum. our main research work is to try to improve dem to finish the work. no matter at domestic or overseas, the pre - processed and post processed of discrete element method is a weakness

    鑒于目前還沒有一種有效的數值計算方法來對沖擊載荷下脆性材料從連續體轉變為非連續體的整個動態破壞過程進行模擬模擬，我們的主要研究工作就是嘗試改良dem法來完成這項工作。
  16. Type system is an efficient approach for data modeling, where a database is viewed as a collection of object classes ; these classes and their behavior are captured by adts ; objects may or may not have aspects of spatio - ternporal data types

    類型系統是一種有效的數據建模方法，它將數據庫看作對象的集合，每一類對象及其行為用一種抽象數據類型（ adt ）來描述，對象可以具有時空數據類型的屬性。
  17. Fuzzy theory simulates the visual thinking of human being. it expresses the procedure of human ' s thinking in very simple mathematical format and need not precise mathematical modelinglt is a sort of efficient mathematical tool and solves some difficult problems perfectly in the field of classical control theory

    而模糊理論則是模擬人類的形象思維，用比較簡單的數學形式直接將人的判斷等思維過程表達出來，不需要建立精確的數學模型，是一種有效的數學工具與手段，很好的解決了經典控制理論難以解決的問題。
  18. Correlation vector quantization ( vq ) is an effective technology for data compression. it is widely used in various image - coding systems because of its high compression ratio

    相關矢量量化是一種有效的數據壓縮技術，因其具有較高的壓縮率而被廣泛應用於各種圖像壓縮編碼系統中。
  19. The principles of sigma - delta modulator have been discussed firstly and the influences of structure and parameters on resolution have been analyzed. then on the base of theories, the simulink toolbox of matlab has been used to make behavior simulation and fft analyse of two main structures : 2 - 1 - 1 and 2 - 2. the related parameters of modulator such as : psd, sndr and enob have been gotten by simulink toolbox on the conditions of different oversampling rates. from the analyses above, topology of modulator has been chosen

    調制器的原理進行了介紹，分析了各種結構及參數對調制器精度的影響;其次，在理論指導的基礎上，利用matlab的simulink工具包對調制器兩種主要級聯結構: 2 - 1 - 1和2 - 2結構進行了行為級模擬和fft分析，得出了在不同過采樣率條件下，兩種結構調制器的功率譜密度、信噪失真比以及有效位數，通過比較確定了調制器的拓撲結構。
  20. General compressing technologies are not proper in some circumstances for the receivers are always required to decompress the data completely to manupulate the original data ( querying, validating etc. ). the embedded document structure of xml also makes it difficult to perform access control because the traditional file level access control systems could not fulfill the requirement of element or attribute level access control. in the paper we first present a scheme for xml - based data exchange which is an xpath - query - friendly compressor for xml

    壓縮技術是提高交換效率的一種方法，但接收方需要對壓縮文檔完全解壓才能夠執行進一步的操作，在很多應用中這種方式並不適用，這就提出了如何在高效壓縮的同時在壓縮后的xml文檔上進行查詢等操作的問題；另一方面，由於xml文檔的層次結構的特殊性，傳統的文件級別的訪問控制已經不能適應在元素、屬性的級別上進行訪問控制的需要，所以對只需要訪問部分xml文檔內容的用戶進行有效的數據訪問控制也是xml數據訪問控制面臨的一個問題。
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