空隙系數 的英文怎麼說

中文拼音 [kōngxìxìshǔ]
空隙系數 英文
void coefficient
  • 空 : 空Ⅰ形容詞（不包含什麼; 裏面沒有東西或沒有內容; 不切實際的） empty; hollow; void Ⅱ名詞1 （天空） s...
  • 隙 : 名詞1 （縫隙; 裂縫） crack; chink; crevice 2 （空閑） gap; interval 3 （漏洞; 機會） loophole; op...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 空隙 : 1 （時間上的） interval 2 （空間上的） gap; space; clearance; separation; air gap （ag）; slot; [...
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. Previous researchers have always determined the sp atial distribution patterns ( sdp ) of castanopsis kawakamii with a sample - dis tance method. however, the distribution patterns may be affected by the quadrat si ze and, in the course of analysis, the density differences among the cluster plots are not considered ; therefore, differences of cluster plot size and the dispersi on degree among individuals of cluster plots can not be known. authers of this pa per have determined the spatial distribution patterns of castanopsis kawakamii population in different habitats by means of non - quadrat distance method and a nalysed the pattern intensity and grain of the sdp. the pattern intensity is defi ned with the relative density differences and the pattern grain can embody the d ispersion degree of the individuals in the plots, and the dispersion degree among the plots. the determined results are as follows. the intensities of the species range in order from strong to week : litsea mollifolia p. kawakamii i. purpure a r. cochinchinensis c. kawakamii c. carlessii d. oldphamii s. superba. the gra ins of the species queue in order from coarse to close : s. superba = litsea mollif olia r. cohinchinensis c. kawakamii = i. purpurea c. carlessii p. racemosam d. oldp hamii. these determined results tally basiclly with the results authers of this paper have got in determining the same plots by means of aggregate index access ing method. in view of this, it is held that the sdp of c. kawakamii is closely related to the habitats and biological features

    前人都是採用樣方方法對格氏栲種群數量的空間格局進行測定，而格局分佈有可能受樣方大小的影響，且分析過程中沒有涉及聚塊間密度差的問題，因而無法掌握種群的聚塊大小差別及聚塊內個體間的離散程度.本研究採用無樣方距離法，測定不同生境的格氏栲種群空間格局，分析格氏栲種群格局的強度和紋理.強度以聚塊和間隙的密度差來定義，紋理則是體現聚塊內個體間的離散程度與諸聚塊間的分離程度.測定結果表明，格氏栲種群格局強度從高到低排列次序為：木姜子蚊母樹冬青茜草樹格氏栲米櫧虎皮楠木荷；格局紋理從粗到細的順序是：木荷=木姜子茜草樹格氏栲=冬青米櫧蚊母樹虎皮楠.這一測定結果與作者採用聚集度指標測定相同樣地格氏栲種群空間格局的結果基本相符.因此，格氏栲空間格局類型及分佈與格氏栲生物學特性及生境的關系密切
  2. The grade composite, road performance and its mechanism are systemically studied. 1 ) the aggregate grade of ogfc is studied through the volume method base on the analysis of the aggregate grades. then the grade is verified and the relation between the grade and pore rate is studied statistically, the typical grades of ogfc are developed ; 2 ) the reasonable pore rate of ogfc is studied on the basis of the balance of mechanics and function performance ; 3 ) the mineral fiber is added to the ogfc mixes to increase asphalt content, thus the anti - water performance of ogfc mixes are improved ; 4 ) high viscous asphalt fit for the preparation of ogfc is prepared through composite modification by sbs and rubber powder ; 5 ) the mechanics mechanism of ogfc is studied in the paper, it shows : asphalt paste, as well as the coarse aggregate skeleton, is essential to the mechanics of ogfc

    在分析各國ogfc級配的基礎上，運用礦料體積法進行ogfc級配設計，用正交實驗對礦料級配進行了優化設計，運用數理統計方法分析礦料級配和孔隙率之間的關系，並回歸出礦料關鍵篩孔通過率與ogfc骨架空隙結構關系的數學方程，進而提出了ogfc的合理級配；通過對不同孔隙率典型級配混合料的性能研究，綜合力學和功能性能，得出了ogfc的合理孔隙率范圍：針對高速公路面層對ogfc力學性能方面的要求，本文從瀝青膠結材料、纖維穩定劑兩方面對ogfc的性能進行改善：通過sbs和橡膠粉復合改性的方法開發出了適合ogfc的高粘度改性瀝青，摻加聚合物纖維，提高ogfc的最佳瀝青用量，進而改善了混合料的高溫性能和抗水損害性能，優化設計出能滿足高速公路路用性能，車轍動穩定度達5000次/ mm以上，動融劈裂強度比90 ，透水系數31ml / s ，並具有防滑降噪功能的開級配瀝青磨耗層（ ogfc ）混合料。
  3. The particles aggregation was simulated using particle - cluster and cluster - cluster aggregation model. several type of floes was reached and its morphological characteristics was analyzed the fractal dimension, density and porosity of floes was studied by changing sticking probabilities, sticking position, particle number, particle concentration, difrusion coefficient and motion trajectory. the parameters by which special floes growth were determined. in the study of morphology, floes of yellow river ' s loess particles was observed by tv - microscope. its morphological characteristics were obtained by image analysis. the effect of fractal dimensions by stirring time strring speed, macromolecule flocculant dosage, flocculant concentration and particle concentration was studie. its rule of change was obtained. on the basis of other studies, the flocculation kinetics and floes structure was studied

    本文應用計算機模擬技術，在二維空間內採用單體凝聚和集團? ?集團凝聚兩種模型對顆粒凝聚過程進行了模擬，得到了多種形態的絮體，並對絮體進行了形態分析，通過改變粘附概率、粘附位置、顆粒數量、顆粒濃度、擴散系數和運動路徑等模擬參數，我們考察了絮體分形維數、密度和孔隙率隨模擬條件變化的影響規律，得到了形成特定形態絮體的控制參數。
  4. We discussed the main characteristic parameters of seismic kinesiology and dynamics of mine engineering fracture zone, including relative amplitude, phase time of wave crest, similarity factor, principal frequency band energy, 3 - d space time gradient and coherent coefficient et al., and puts forward the processing method of 3 - d seismic characteristic parameters about denoise - smoothing, generalization, correlation analysis, characteristic transformation ; and presents the method of pattern recognition of mine engineering fracture zone

    摘要本文從時間域、頻率域、三維空間域介紹了礦山工程裂隙破碎帶主要的地震運動學、動力學屬性參數，包括相對振幅、波峰相位時間、相似系數、主頻帶能量、二維空間時間梯度和相干系數等，提出了礦山工程裂隙破碎帶三維地震屬性的去噪平滑、歸一化、相關分析、特徵變換的處理方法以及裂隙破碎帶的模式識別原理與方法，並用實例說明了該方法的應用效果。
  5. The numerical simulation and experimental research made on the characteristics of the clearance cavitations in kaplan turbine are described herein ; in which the analysis mainly is concentrated on the characteristics of leakage - vortex caused by the flow of the clearance between blade tip and blade chamber, that occurs at the front - pressure side of the blade, and the intensity of the secondary - flow - vortex ; furthermore, the relationship in between the leakage - vortex, secondary flow vortex, cavitations and erosion are analyzed as well

    摘要對軸流轉槳式水輪機輪緣間隙流動及空化特性進行數值模擬和試驗研究，重點分析輪緣間隙流動在正面頭部泄漏流動所引起的泄漏渦帶、二次流動的漩渦強度和空化特性，以及泄漏渦帶旋轉、二次流動的漩渦與空蝕和磨損之間的關系。
  6. In the paper, by using bp ( back propagation ) method of ann, we can get the relationship between grading, asphalt - aggregate ratio, bulk density, percentage of voids, test temperature and ds. at the same time, we can get the relationship between grading, asphalt - aggregate ratio, bulk density, percentage of voids, test temperature and viscoelastic parameter. at last, we can estimate the ds and draw the deformation curve

    本文應用bp人工神經元網路，建立瀝青混合料的礦料通過百分率、瀝青用量、毛體積密度、空隙率、試驗溫度與瀝青混合料粘彈性參數的關系，或建立瀝青混合料的礦料通過百分率、瀝青用量、毛體積密度、空隙率、試驗溫度與車轍試驗動穩定度值的關系，從而預估車轍試驗的動穩定度值和繪制車轍試驗變形曲線。
  7. Ultrasonic plastic welding theory is generated by the generator 20khz or 15khz pressure, high - frequency signals, the system can be adopted for the high - frequency signals into mechanical vibrations, and in plastic products working, through working surface and internal friction among elements spread by the department of the interface temperature, when the temperature reached the melting point of her own, that the working interface rapid melting, and then fill in the gaps between the interfaces when shock stop working at a certain pressure and cooling will be a perfect welding

    的高壓高頻信號通過換能系統，把信號轉換為高頻機械振動，加於塑料製品工件上，通過工件表面及內在分子間的磨擦而使傳處到介面的溫度升高，當溫度達到此工件本身的熔點時，使工作介面迅速溶化，繼而填充于介面間的空隙，當震動停止，工件同時在一定的壓力下冷卻定形成完美的焊接.點擊數： 723錄入時間： 2006 - 5 - 14
  8. The paper establishes a mathematic model that describes the relationship between the arc voltage, the recovery voltage and the arc shield voltage. lt makes a detailed theoretic analysis of the plasma changing laws between contacts and the arc shield gap arc in the arcing process and after - arcing recovery process. the model has achieved the same results as the experiment results

    建立了描述真空滅弧室的電弧電壓、恢復電壓與屏蔽罩電壓之間關系的數學模型，從理論上詳細分系了燃弧過程和弧后恢復過程中，真空滅弧室觸頭間隙和觸頭與屏蔽罩間隙電弧等離子體的變化規律，取得了與試驗結果一致的結論。
  9. Study on workability - design of fresh concrete was carried out by introducing coefficient of filling - voids of mortar ( cfvm ), where cfvm was the ratio of voids content of densely packed coarse aggregates to the volume of mortar in concrete

    在新拌混凝土工作性設計中引入了砂漿填充系數c _ （ fvm ）的概念， c _ （ fvm ）是混凝土中砂漿體積與粗集料振動密實空隙體積的比值。
  10. According to the theory of electromagnetic fields, the large salient synchronous generator with fractional stator slot are calculated and analyzed by the finite element method ( fem ) in this paper. the fourier analysis method is applied to decompose the air gap magnetic density into the basic spatial component and a series of harmonic components and wave shape eigen coefficient of air gap magnetic field are calculated

    本文根據電磁場理論，從耦合場的弱耦合角度首先計算了定子具有分數槽繞組的大型水輪發電機的電磁場，採用付立葉諧波分析的方法把氣隙磁密分解為空間基波和一系列諧波，進而計算出氣隙磁場波形特徵系數。
  11. They are widely applied in the tower of coking desulfurizing, benzene scrubbing, naphthalene scrubbing, ammonia scrubbing and chemical fertilizer hot water saturation tower, electric power plant wet cooling tower

    該系列填料具有比表面積大、空隙率高、傳質系數大、抗堵塞、抗腐蝕、耐急冷急熱、使用壽命長、易安裝的優點，是一種理想的塔填料。
  12. Abstract : the paper presents a theoretical study on the thermal conductivity of frost formation on cooled flat plate under forced convection. taking the porous meditum as a physical model of frost layer, according to the theories of heat and mass transfer, the formula on heat conductivty of frost formation is derived

    文摘:研究水蒸汽凝華結霜過程在冷壁上形成的霜層的導熱系數，依據隨機管子多孔介質霜層模型，假設霜層是由孔隙空間與冰晶骨架構成的多孔介質，其中孔隙空間由隨機毛細管及連接管子的接頭形成，濕空氣中的水蒸汽在霜層的孔隙空間中擴散輸運並凝華結霜，根據傳熱傳質學理論，導出霜層導熱系數關系式。
  13. To improve the fluorescent intensity of the dyes in alumina film, a series of experiments were conducted. to enlarge the diameter and extend the length of the pores, improve the porosity, and increase the concentration of dye solution can increase the quantity of dye in alumina film. therefore the fluorescent intensity of the dye in alumina film can be enhanced greatly

    做了一系列實驗考察了如何提高染料鑲嵌膜的光致發光強度，發現通過改變多孔鋁的孔徑尺寸、空隙率、染料在溶液中的濃度等，以此增加鑲嵌在多孔鋁孔中的染料分子數量，可大幅度提高染料鑲嵌膜的熒光強度。
  14. 2 jn vitro degradation study. mass loss, intrinsic viscosity, volume, acidity and compressive strength changes during storage at 37c in saline forl - 8 weeks was determined for the two groups of scaffolds

    將不同空隙率材料置入生理鹽水中，在37孵浴1 - 8周，比較各組ph值、質量、固有粘滯系數、體積及抗壓強度的變化。
  15. In order to study the relationship between homogeneity and performance variation of asphalt mixture, based on digital image processing technology, using the regression method, the relationship between homogeneity of asphalt mixture and air void, dynamic stability and mechanical strength of asphalt mixture was quantitatively investigated via the index of homogeneity of asphalt mixture

    摘要為了研究瀝青混合料均勻性與性能間的相互關系，基於數字圖像處理技術，通過瀝青混合料均勻性指標，利用回歸方法對瀝青混合料均勻性與空隙率、動穩定度及力學強度間的相互關系進行了定量研究。
  16. An example demonstrates the reliability of the proposed method. different clearance size, friction coefficient, damping and flexible coefficient are given to the model

    針對一曲柄機構進行了模擬計算，研究了空間間隙摩擦系數桿件的柔性等因素對系統動力學特性帶來的影響。
  17. But there are some problems and difficulties in ect designs and ect applications. the topics of this dissertation are small capacitance measurement that is a key part in ect designs and ect applications, high - speed data acquisition system design and ect applications in two - phase flow parameter measurement

    本文針對制約電容層析成像技術發展和應用的微弱電容測量和數據採集速度等問題進行了深入研究，研製了一套高速電容層析成像系統並在氣液兩相流流型識別和空隙率測量以及流化床固相含率分佈量化監測上得到成功應用。
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