隙縫系數 的英文怎麼說
中文拼音 [xìféngxìshǔ]
隙縫系數
英文
gap coefficient-
Abstract : according to the continuative condition of the tangential fields on the slot aperture which is the inclined narrow - slot on the broadwall of a sectoral waveguide, the moment method is used to calculate the magnetic current coefficient and distribution. then the scattering field, the scattering parameter and the equivalent impedance are obtained. leting only the te11 dominant mode propagates in the waveguide, the scattering parameters and the normalized equivalent series impedance in the x - band are computed. the basis disigned the slot antenna and the slot array is offered
文摘:根據縫隙口面切向場的連續條件,採用解析數值法矩量法,對扇面波導寬壁上窄的斜縫進行了計算,解得了磁流系數及其分佈,並得到散射場、等效散射參量及等效阻抗等重要參數.假定波導中僅有te11主模傳輸,在x波段計算了散射參量和歸一化等效串聯阻抗,給出計算結果,為縫隙天線和縫隙陣列設計提供了依據Directed by wave theory of fractured media, the elastic parameters of eda medium are determined in the light of hudson - fractured theory, and christoffel equation gives the formula of the phase velocity of p - wave by which, effects of velocity on behalf of kinetic characteristic and reflection coefficient on behalf of dynamical characteristic form fractured density and azimuty is discussed
本文以裂隙介質的波動理論作指導,根據hudson裂隙理論,求出eda介質的彈性參數。在此基礎上,應用christoffel方程求出的地震縱波相速度表達式,探討了裂縫密度和裂隙方位對代表波場運動學特徵的縱波速度和代表波場動力學特徵的反射系數的影響。In order to study the characteristic signals according to the quality of the welding with dissimilar gaps, the self - made real - time monitoring system with coaxial sensors is applied to acquire and extract coaxial signal, and then the signals are analyzed with modes analysis, subsection power analysis and wavelet analysis
摘要為了研究不同間隙下激光拼焊的焊縫質量及其對應的信號特徵,採用自製同軸傳感系統採集提取多種間隙下焊接時的同軸光信號,並對信號進行眾數分析、分段功率譜分析和小波分析。This paper discusses three slot - coupled microstrip antennas with high dielectric constants based on gps ( global positioning system ) receiving antenna. they are separately with slots of oblique, t shape, and l shape
本文以全球定位系統( globalpositioningsystem ,簡稱gps )接收機微帶天線單元為研究對象,探討了三種高介電常數縫隙加載正方形貼片的天線特性,分別是斜縫, t形縫和l形縫。The derivation of the leakage flow rate formula of the special annular clearance between the piston and cylinder under condition of variable viscosity in the axial piston pumps was carried out. at same time, considering the questions of the eccentricity and the variable sealing length of piston friction pair, the modified coefficient of the calculation formula of the flow - rate of the leakage was given
在變粘度、柱塞偏心以及變密封長度條件下,對軸向柱塞泵中柱塞與缸孔之間的特殊圓環縫隙的泄漏流量公式進行推導,得到了該計算公式的修正系數; 6Finally, a rigorous analysis with sinusoidal galerkin method is made of a broad wall slot coupler between two crossed rectangular waveguides. the analysis of the relationships among its s parameters is also made
文章最後採用矩量法分析了一種縫隙陣中常用的正交波導功率耦合器件的特性,並給出了其s參數之間的一般關系。Analyzed the influence of elastic modulus to the valves parameters, the influence coefficients of elastic modulus to the valves parameters is founded
定量分析閥片彈性模量對閥系設計參數的影響,確定閥片厚度和節流縫隙的彈性模量影響系數,利用該系數可對閥系參數進行推算設計。In this part we start form the magnetic field integral equations ( mfie ) and then establish the matrix equations for the unknown magnetic currents on the surface of slot aperture. to solve this problem, piece - wise sinusoidal basis and galerkin ' s method are used
首先,利用理想縫隙假設建立關于縫隙內外口面磁流密度的磁場積分方程,然後採用分段正弦基galerkin方法將積分方程離散為關于展開系數的矩陣方程。In this paper a newly develoed helical coordinates is used to make out the solution of electromagnetic fields in the helix gap and calculate dispersion characteristics of tape helix slow wave structure for the first time. strict boundary conditions for magnetic fields are adopted and are treated rigorously by fourier expansion. besides, the radial propagation constant of every layer in the dielectric - loaded region is differentiated. some of practical tape helix slow wave structures have been calculated for dispersion characteristics and the calculated values accord with measured values very well. the authors also compare the calculated results with experiments for different structures by changing tape thickness or other structure parameters and find that the theory in the paper is universal
本文首次運用螺旋坐標系給出了帶狀螺旋線縫隙內的電磁場解,並據此計算了帶狀螺旋慢波結構的色散特性.文中採用了嚴格的邊界條件,並以傅立葉展開進行了嚴格的數學處理.另外還首次對有介質區域內各層的徑向傳輸系數作了區別.本文使用這種方法計算了我們已研製的一些寬帶高功率行波管所用的慢波線結構的色散特性,理論與實驗符合得很好.我們還計算了不同結構參數對色散特性的影響,並與實驗作了對照,發現本文的理論有一定的普適性The fracture parameters calculated for the ordovician carbonate reservoirs in one region by applying these methods are well identical with the core fracture porosity, imaging logging data, formation dynamic permeability and production test result, which indicates that these methods of estimating fracture parameters are feasible and effective
採用這套方法對某地區奧陶系碳酸鹽巖儲層計算裂縫參數,與取心井段巖心裂縫孔隙度、成像測井資料、地層動態滲透率及試油(氣)結果吻合較好,說明該套估算裂縫參數的方法是可行且有效的。But the change of reflection coefficient is three times as much as the change of velesity resulted from fractured density, which shows that dynamical characteristic of seismic wave is more sensitive to fracture than kinetic characteristic
而對于同級別的裂縫密度,反射系數的變化量是其速度變化量的3倍左右。揭示了地震波的動力學特徵比其運動學特徵對裂隙更敏感。And writer analyzed concretely the total request in safety of the business system, put forward project of the safe technique that was combined with the network safe technique, computer system technique and the safe technique in business in bank. finally, the writer analyzed system safety completely, analyzed the safety the management that demands to further enhance, gave explanation and suggestion to the concrete problem
這個方案根據中國農業銀行數據大集中的要求,按照系統安全設計整體考慮,技術上分層次實現,對重點安全問題重點分析解決,各個業務處理系統進行了整體部署,減少了重復的安全校驗,增加了對應用系統間安全縫隙的安全防範,使整個系統的安全防範更加完善。At first, the author has analyzed the theory, mechanism and shock - absorption in pre - split blasting, studied the rising of crack, expanding and stopping, and did various factors which influence on the crack of rock in pre - split blasting. the main factors have been determined to be the strength of mineral and rock, the diameter of drill, the type of explosive and the growth degree of crack. then, the author has researched bp neural networks " work principle, structure and defectiveness
首先分析了巖石成縫的理論、機理和減震作用,研究了裂紋的起裂、擴展和止裂;分析了各種因素對巖石預裂爆破成縫的影響,確定了礦巖強度、孔徑、炸藥類型和裂隙發育程度作為主要影響因素;並研究了bp神經網路工作原理、結構和缺陷,把改進的bp神經網路運用在巖石預裂爆破參數設計中,建立以礦巖強度、孔徑、炸藥類型和裂隙發育程度為主要影響指標的bp神經網路的預裂爆破參數設計識別模型;運用matlab6 . 5語言開發了爆破參數設計的智能系統,實現了預裂爆破參數設計的自動化,用工程實例驗證系統模塊的功能。分享友人