特性曲面 的英文怎麼說
中文拼音 [tèxìngqūmiàn]
特性曲面
英文
characteristic surface- 特 : Ⅰ形容詞(特殊; 超出一般) particular; special; exceptional; unusual Ⅱ副詞1 (特別) especially; v...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 曲 : 曲名詞1 (一種韻文形式) qu a type of verse for singing which emerged in the southern song and ji...
- 面 : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
- 特性 : characteristic(s); character; performance; features; properties; behaviour; response; character...
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For this purpos, from the point of the log geology, aimed at the actuality of the current fractured reservoir log geology interpretation and evaluation, based on synthetical analysis of the current domestic and foreign fruit of fractal dimension investigation of reservoir fracture, using the method and technique of fractal dimension, through the further discussion of the fractal dimension characteristics of m index and n index in the log interpretation archie model in a sample way and through the theoretic reasoning to the fractal dimension dfa and m index of fractured reservoir interval ' s log curve, according to the geophysical signification of the fractal dimension dfa of fractured reservoir interval ' s log curve shape : the more complicated the change of the curve shape is, the larger the its dfa value is, then the more complicated space structure of fracture and pore, then the higher value of m index of space structure of fracture and pore, and so on, the text propounds an improved method, based on box dimension, of covering log curve with scale grid, and by programming computes the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, then further puts this technique into application investigation, and makes analysis of application effects in the reservoirs located in l area of qx oil field from three aspects : 1. the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, which are derived from computing, is used to identify reservoir type by crossplotting m index with the product df _ acrt of fractal dimension of acoustical wave log curve and restivity log curve and by experiential discriminance plate of reservoir type in l area of qx oil field
因此,對該區裂縫性儲集層的類型識別、孔滲特徵的測井地質解釋以及儲層裂縫的發育和分佈規律進行深入的研究便成為本文研究的出發點。為此,本文從測井地質的角度,針對當前裂縫性儲層測井地質解釋與評價的現狀,在綜合分析當前國內外儲層裂縫的分形分維研究成果的基礎上,利用分形分維方法和技術,通過對archie測井解釋模型中的m指數、 n指數的分形分維特性的深入淺出的論述以及裂縫性儲層段測井曲線分維d _ ( fa )與m指數的理論推導,根據裂縫性儲層測井曲線形態分維值的地球物理意義? ?曲線變化越復雜,則其分維值d _ ( fa )越大、裂縫孔隙空間結構越復雜、裂縫孔隙空間結構指數m值越高等特徵,提出了改進的基於盒維數的測井曲線網格覆蓋法,編程計算了裂縫性儲層段常規測井曲線(如聲波和電阻率曲線)上分形分維值及其m指數值,進而從以下三個方面對qx油田l區塊的裂縫油藏進行應用研究,效果十分理想: 1將計算得到的可變的m指數與聲波和電阻率分維之積df _ acrt進行交繪,採用儲層分維值分類技術統計分析這些參數變化的規律,並結合qx油田l區塊儲層類型經驗判別圖版,從而實現qx油田l區塊下白堊統的裂縫性儲層的類型識別。In this paper, we give a brief introduction to the helfrich elastic theory. to solve the helfrich equation under the physical conditions of vesicles, a taylor series method is introduced, which offers a unified method to reproduce the exact solution including the famous axisymmetrical constant - curvature surfaces and the biconcave shape solution
本文在簡要介紹了helfrich的彈性理論及膜方程的基礎上,開創性地引入taylor級數法,在軸對稱膜的邊界條件下,對helfrich膜方程以taylor級數法求解,統一地得到了目前已知的兩個特解:常平均曲率曲面和紅血球形狀解。Abstract : propagation characteristics of r wave in a pavement structures are analysed in this paper. based on the propagation characteristics of r wave, the horizontal propagation wave is simulated by using r wave, the vertical propagation wave is also simulated by using body wave in calculating dynamic response of pavement structures. the availability and accuracy of dispersion curves measured by sasw in pavement structures is analysed by using the presented method used to calculate dynamic response
文摘:利用有限單元法分析了道路結構的r面波傳播特性:在深度方向上衰減較慢,傳播較深,波動性大.提出了在道路結構動力響應計算中,利用面波來模擬水平向傳播波,利用體波來模擬豎直向傳播波.通過算例來驗證該方法的可靠性和精確性,並利用這一動力響應計算方法分析了道路結構表面波測試中所獲彌散曲線的可靠性The paper studies the surface geometry of globoidal indexing cam by applying the theory of conjugate surfaces and the method of coordinate transformation, presents the equations related to the main inducement curvature of the cam profiles, analysis and deduces the equations of two circumscription curves, which judge if the conjugate surface could mesh properly. some calculate examples and conclusion are given. the surface equation of the globoidal cam and conjugate equation are established
論文首先在分析空間嚙合原理基礎上,採用坐標變換法推導出弧面分度凸輪的工作廓面方程、嚙合方程和壓力角計算公式,對弧面分度凸輪的嚙合特性進行了深入的分析和研究,對判斷曲面能否正確嚙合的依據如兩類界限線方程以及誘導主曲率等進行推導,並給出算例。As it can be expressed easily by argument equations, we use the conicoid as the criteria of points " classification. based on the point ' s normal and the adjacent field, corresponding to the conicoid equation such as plane, ball and cylinder, we search the points that fit the equation along the adjacent field. using this method, we realized the automatic classification of unorganized points
本文採用了可以比較方便地用參數方程表示的二次曲面作為數據點的分類標準,根據點的法向量以及其鄰域結點的各種屬性,對應于平面、球面、柱面等二次曲面,依據曲面方程的特點,從起始點開始沿鄰域深度優先遞歸尋找符合方程的數據點,實現了散亂數據點的自動分類。This paper is from the " on - line measuring system for cragged surface on bad conditions ", supported by the science and technology research foundation of anhui province. this project is mainly on the research of measuring geometric parameters on train wheel profile applying stereovision measurement technology
本論文所研究的課題來源於安徽省重點科研項目「特殊工況異性曲面在線檢測系統」 ,本項目主要研究如何應用計算機視覺測量技術來檢測火車車輪輪廓幾何參數。As it is impossible to machine the helicoid gear surface with large module and a few teeth by gear generating, a four - axis milling was developed in this paper
摘要針對大模數少齒數螺旋齒輪的加工特點,結合漸開線和擺線的性質,利用微分幾何工具計算出該類曲面的法矢,作為選取球頭銑刀半徑的依據。A model of the interface state density distribution near by valence band is presented, and the dependence of the threshold voltage on temperature, the c - v characteristics and the subthreshold characteristics are predicted exactly with this model ; the effects of s / d series resistance on the output characteristics, transfer characteristics and effective mobility of sic pmosfets are analyzed. thirdly, the output characteristics and the drain breakdown characteristics are modeled with the procedure medici. the output characteristics in the room temperature and 300 ? are simulated, and the effects of gate voltage. contact resistance, interface state and other factors on sic pmos drain breakdown characteristics are analyzed
提出了一個價帶附近的界面態分佈模型,用該模型較好地描述了sicpmos器件閾值電壓隨溫度的變化關系、 c - v特性曲線以及亞閾特性曲線;分析了源漏寄生電阻對sicpmos器件輸出特性、轉移特性以及有效遷移率的影響;論文中用模擬軟體medici模擬了sicpmos器件的輸出特性和漏擊穿特性,分別模擬了室溫下和300時sicpmos器件的輸出特性,分析了柵電壓、接觸電阻、界面態以及其他因素對sicpmos擊穿特性的影響。The wear mechanism of tungsten carbide particle reinforced steel matrix composites was studied according to the frictional and wear characteristics and the scanning electron microscopy photographs of worn surfaces after wear testing. the effect of heat treatment and tungsten carbide content on wear resistance was investigated as well
結合磨損特性曲線和不同磨損時間的摩擦面sem照片,分析了wc鋼復合材料的磨損機理,並討論了不同熱處理工藝和wc顆粒含量對wc鋼復合材料磨損性能的影響。This method could avoid the input of many trace points, and decrease the work times. using vb6. 0 and related interface functions, a user - friendly interface of the design and dynamic simulation system of cam mechanism was developed. it could plot the track of the movement, produce the related documents and simulate the cam movement dynamically
系統運用vb6 . 0以及相關介面函數構建了良好的人機交互界面,實現運動特性曲線繪制、數據文檔的輸出以及機構的運動模擬;基於activex技術調用autocad中對象,實現了凸輪廓線的圖形繪制。By virtue of the design features of the mania dam, this paper studies the dynamic characteristics of the dam materials. by comparison with other similar projects, it presents a curve for dynamic characteristics of clay core materials and rockfill materials, makes analysis on the dam ' s plane dynamic response by finite element method, calculates the dam ' s seismic acceleration, the dynamic shear stress of the rockfill, and the dynamic stress of the cutoff wall in the overburden layer
本文針對滿拉土心墻堆石壩的設計特點,進行了築壩材料動力特性試驗研究,通過與相關工程對比給出了心墻料和堆石料的動力特性曲線,採用有限元方法進行了大壩平面動力反應分析,計算了大壩的地震加速度、堆石體動剪應力及覆蓋層防滲墻的動應力。Voltage characteristic curve can full y reflect performance of sensor with carrier of catalyst
電壓特性曲線能比較全面地反映載體催化型傳感器的性能。In the section of theory, we mainly studied optical parameter effect, discussed physical mechanism of optical parameter laser and normalized coupled wave equation and got the solution. we also carried out the analysis of gain mode of optical parameter oscillation, studied the threshold condition, analyzed output characteristics and then achieved characteristic curve
本文理論部分主要作了有關光參量效應方面的研究,探討了光參量振蕩器的物理機制、參量振蕩的歸一化耦合波方程,求解得到了參量振蕩器的耦合波函數,同時對光參量振蕩的增益模式進行了分析,研究了使參量振蕩的閾值條件,並對光參量振蕩器的輸出特性進行了分析,得到了特性曲線。To meet the need of developing the simulator of the whole flow sheet of the mathematical plant, mathematical model and simulation software of the plant is developed. in the process of modeling, thermotical character and mechanical character of centrifugal compressor are emphased. thermotical character is about section parameters and character curves ; mechanical character is about rotor ' s vibration and axial force
在建模過程中,重點對離心式壓縮機的熱力特性和機械特性做了較深入的研究,其中熱力特性著重於離心式壓縮機中的氣流在各個關鍵截面參數和特性曲線,機械特性著重於壓縮機轉子軸系的振動和軸向力。Abstract an algorithm of feature surface recognition based on quadric surface fitting and geometry property was presented
摘要提出了基於二次曲面擬合誤差分析和幾何屬性分析的特徵曲面識別演算法。This application include seven modules, which are : database accessing module, data exchanging interface module, data processing module, performance curves module, report table module, universal performance curves module, universal performance surface module
它主要包括數據分析處理介面模塊、數據交換介面模塊、數據處理模塊、性能曲線繪制模塊、報表生成模塊、萬有特性曲線繪制模塊、萬有特性曲面繪制模塊。Differential equations for characteristic curves, velocity curves and slowness curves are given and the analytical expressions for wave fronts in orthotropic porous media are also obtained. the wave fronts in anisotropic fluid - saturated porous media are discussed in detail. in chapter 3, the plane wave propagation in orthotropic fluid - saturated porous media is researched according to biot ' s theory and the concept of dynamic permeability
給出了正交各向異性液飽和多孔介質中彈性波的特徵曲面,速度曲面以及慢曲面的微分方程,並給出了正交各向異性液飽和多孔介質中應力波波陣面的解析表達式,對不同含液飽和多孔介質中應力波傳播的波陣面進行了研究。Cefr equipment reliability database is used mostly in following ways : providing equipment reliability parameters through equipment operation log and maintenance records analysis for cefr ' s pra and on - line risk monitor system. providing fault causes of related equipment through the equipment fault records and reason analysis in order to control spare parts macroscopically and adopt necessary improvement. providing curves of equipment fault characteristic through historical records of equipment fault for preventive maintenance
Erd將是cefr的重要信息系統,它不僅可以提供設備原始特性參數,而且可以提供設備失效趨勢分析曲線, erd的主要用途如下: ?通過對設備運行記錄和維修記錄的分析給出設備可靠性參數,用於cefr的pra分析及風險管理系統; ?通過對設備失效記錄及原因分析給出相關設備失效的根本原因,以便從宏觀上控制備品備件或採取必要的改造; ?通過對設備失效歷史記錄的分析給出設備失效的特性曲線,提供預防性維修所需信息; ?另外erd在大修優化、 rcm 、定期試驗以及維修政策方面有重要的指導意義。Surface fitting of magnetostrictive parameter of terfenol - d
的磁致伸縮特性曲面擬合On the basis of the theoretical analysis, design and the study on the fabricating technique, the relationship between hull height and writhe speed, the output light which proves the single - mode condition, and the split peculiarity of output light, was gotten
在前面器件理論分析、設計和工藝研究的基礎上,我們得到了膜厚度與轉速關系特性曲線;得到直波導輸出光斑,驗證了波導參數滿足波導單模性的要求;得到的y分支的輸出分光特性。分享友人