有限孔徑 的英文怎麼說

中文拼音 [yǒuxiànkǒngjìng]
有限孔徑 英文
finite aperture
  • 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
  • 限 : Ⅰ名詞（指定的范圍; 限度） limit; bounds Ⅱ動詞（指定范圍, 不許超過） set a limit; limit; restrict
  • 徑 : Ⅰ名詞1 （狹窄的道路; 小路） footpath; path; track 2 （達到目的的方法） way; means 3 （直徑的簡稱...
  • 有限 : limited; restricted; finite; a little; not much
  1. The feasibility and some advantages of employment of sil have been discussed. the numerical aperture are calculated when laser pulse is defocusing. in contrast with traditional microscopy objective, the employment of solid immersion lens can effectively increase the numerical aperture of the recording system ; thereby it can increase the volumetric density and decrease the demand of the incident laser power

    當脈沖聚焦點相對于固體浸沒透鏡底面離焦時，對系統的有效數值孔徑進行了計算，結果表明採用固體浸沒透鏡離焦的方式進行記錄，系統的有效數值孔徑最低可增大到固體浸沒透鏡插入前的折射率倍，其數值孔徑的理論極限值為存儲介質的折射率。
  2. The important meaning in which this direction studied has lain in establishing the connection between the material science of concrete and civil engineering, analyse the strength in terms of material microcosmic or the mesoscopic, have important meaning to understanding, know the essential law of the strength of concrete. this text divides six chapters altogether. chapter one reviewed the pore structure in nowadays domestic and international research current situation, including the concrete examines research, research of the pore structure model and the research current situations of pore structure and strength relation of the pore method, have introduced some most important achievements of structure research of pore ; chapter two narrated much yardstick of the material mesoscopic structure of concrete and principle of examining pore technology of material of concrete, and the commonly used sign parameter in discussedding the pore and material pore of quito of cement and analyse, have explained that the influence factor of mip to the result of study of pore, has pointed out the limitation in mip in the pore structure ; analyse porosity and strength relation development course of model emphatically, and has carried on comparative analysis to the existing model, has pointed out the weak point of the original model ; on the basis of " ing integrate synthetically ", propose concrete pore structure compound body model and pore physical model of systemlex body ; chapter five carried on the corresponding test data to compares to the model parameter appearing in model of chapter four with and analyses, have received k value of the characteristic of strength of matrices of reflecting according to the method to return to analysis, and calculate the influence produced on the strength of concrete in revision that can probed into the content of cement, elastic mould and surface energy, exactness of the inspection model ; chapter six is the conclusion, according to studying the survey this text to some research conclusions of the pore structure and making corresponding prospect to the structure development of pore

    第一章回顧了孔結構在當今國內外的研究現狀，包括混凝土測孔方法的研究、孔結構模型的研究及孔結構與強度關系的研究現狀，介紹了孔結構研究方面的一些最重要的成果；第二章敘述了混凝土材料細觀結構的多尺度性及混凝土材料測孔技術的原理，並討論了水泥基多孔材料孔隙分析中常用的表徵參數，也說明了壓汞法測孔對研究結果的影響因素，指出了壓汞法在孔結構研究中的局限性；第三章是著重分析了孔隙率與強度關系模型的發展歷程，並對已有的模型進行了比較分析，指出了原有模型的不足之處；第四章在「綜合集成」的基礎上，提出了混凝土孔結構復合體模型和孔系統的物理模型，並模擬了該模型下由各單體並聯形成的復合體的斷裂過程，最後根據所建模型編制了相應的計算程序，可根據輸入的孔徑分佈與水泥含量等參數，實現混凝土理論強度的計算；第五章對第四章模型中出現的模型參數進行了相應的試驗數據對比分析，根據回歸分析的方法得到了反映基體強度特徵的k值，並從理論上探討了水泥含量、彈性模量和表面能的修正對混凝土強度計算產生的影響，檢驗模型的正確性；第六章是結論與展望，根據研究綜述了本文對孔結構的一些研究結論並對孔結構發展作了相應的展望。
  3. We have kept in specializing in optical instruments for nearly 40 years, especially sight test apparatuses, such as trial lens of both full - aperture with metal colored metal rim and reduced - aperture with plastic aluminum mount, trial frame with adjustable changeless p. d, crooss cylinder set and retinoscopy rack set. based on excellent quality and reasonable price, our trial lens set has acquired a good reputation from the customers and distributors over the world. for ten years, our products have been widely shipped to america, europe, southeast asia, mid - east and africa

    連雲港天諾光學儀器有限公司是專業生產驗光鏡片箱檢眼鏡片箱試鏡架等驗光儀器的廠家，多年來，公司致力於驗光儀器的開發和研究，追求精益求精，不斷改進生產工藝，提高產品質量，並積國內外諸多驗光師的經驗遂漸形成260 232 226 158等多種產品及規格，配置合理鏡片孔徑大驗光配鏡舒適準確，是理想的專業驗光工具。
  4. The subject comes from the cooperation project “ x waveband sar receiver ” between chengdu sine science & technology ltd. and the uestc. the auther is responsible for the demonstrability of the rf receiver and the implemetaion of the lna in the system

    本項目來源於電子科技大學成都賽英科技有限公司與電子科技大學的合作項目「 x波段合成孔徑雷達（ sar ）接收機」 ，筆者進行了該接收機系統方案的論證及接收機前端低噪聲放大器（ lna ）的研製。
  5. This paper mainly aims at the strategic demands for large - aperture lightweight mirror proposed by high - tech development. its main research contents are : select material blank for lightweight mirror according to physical and chemical properties of optical glass ; analyze and calculate the deformation quantity of the mirror with finite element method ; design and optimize mirror body structure of 400 lightweight plane mirror and 450 lightweight spherical mirror, analyze glass cutting principle, design specisl - use grinding wheel structure, select reasonable technological parameters to implement the processing of weight reduction holes on 400 plane mirror ; analyze etching mechanism of hydrofluoric acid, look for the technological parameters such as the optimal acid concentration and etching time etc. ; eliminate the stress of weight reduction holes and micro - cracks on 400 lightweight plane mirror ; discuss the processing principle and

    本論文的研究主要是瞄準國家高技術對大口徑輕型鏡的戰略需求而開展的。主要研究內容是：根據光學玻璃的物理與化學性能，選擇輕型鏡坯材料；用有限元法對鏡子的變形進行分析、計算，找出變形規律，優化設計400mm輕型平面鏡、 450mm輕型球面鏡鏡體結構；分析玻璃切削原理，設計專用磨輪結構，選擇合理工藝技術參數，完成400mm平面鏡輕量化減重孔的加工；分析氫氟酸腐蝕光學玻璃機理，尋找最佳酸濃度、腐蝕作用時間等工藝參數，實現400mm平面鏡減重孔應力與微裂紋的消除；討論分離器加工原理和工藝技術特點，完成400mm平面輕型鏡面形加工。
  6. Abstract : reviewed are five methods for the analysis of the penetration of jacked - in piles, namely, cavity expansion method, strain path method finite element method, slip line method and calibration model test. after analysis, it is pointed out that it is more rational to adopt sub - statical spatial axisy numerical formulas based on traditional plane - strain cavity expansion method in the analysis. after spatial closed - form solutions are obtained for soil movements, stresses and initial excessive pore pressures generated durihy pile penetration are found out. it is suggested that finite element analysis together with centrifugal model test be used in verifying the results

    文摘:在分析飽和粘土中靜壓樁的貫入機理的基礎上，對靜壓樁沉樁分析的圓孔擴張理論、應變路徑法、有限元分析、滑移線理論和模型槽試驗等五種方法逐一進行評述，並提出在傳統的平面圓孔擴張理論基礎上加以改進，採用準靜態空間軸對稱方程組對靜壓樁貫入過程進行模擬，從而得出土體位移、應力、初始超孔壓的空間解析解，同時採用有限元分析、模型槽試驗相互印證的研究方法
  7. The same type of cement - soil mixing pile with concrete core, concrete pile and cement - soil pile that means they have the same pile length and pile diameter is deeply analyzed by finite element program. we get the q - s curve, the axis force of pile body curve, the stress of pile curve and the side and the end sharing load ratio of the pile curve by finite element program. with the help of the finite element program, the paper finds the relations between the pile ' s parameter and its bearing capacity and load transferring properties

    利用有限元計算分析了同比（樁長相同、樁徑相同）水泥土組合樁、水泥土攪拌樁和混凝土鉆孔灌注樁，得到了它們的荷載沉降曲線、樁身應力曲線、樁身軸力曲線、樁側樁端分擔荷載曲線等，通過這些曲線對它們的荷載傳遞規律以及變形特性進行了深入的分析。
  8. The finite element model and result are given. the influence on displacement of different finite element model ' s lateral boundary and the cavities " radius and the variety of dynamic stress concentration at different ratio of long - axis divided to short - axis and material are discussed

    給出了有限元模型和計算結果，討論了有限元橫向邊界不同和孔徑大小不同的情況下對位移的影響，還討論了不同長短軸比和不同材料情況下動應力集中系數的變化。
  9. The solution of the interior problem has been obtained by the fem method. ensuring the continuity of the tangential electric field across the aperture plane, the electromagnetic e and h has been gained

    分別採用有限元法和矩量法分析封閉腔體和半無限空間的電磁場，在孔徑面上進行邊界條件匹配，從而得出極化雙工柵中的電磁場特性。
  10. It also has been validated by the test result. on the basis of reduced stress attenuation formula, the paper elicit theoretical calculation expressions of jam lengths in hole blasting and space between charges in linear charge blasting. linear charge blasting at the net of highway to zhuhai aerodrome and the hole blasting at underground stope in gaofen mining company have been design by the expressions

    根據建立的條形藥包爆破徑向應力衰減方程，得出了淺孔爆破堵塞長度和條形硐室藥包爆破藥室間距理論計算公式；按推導的計算式設計了珠海西區機場路埡口條形藥包爆破和高峰礦業有限責任公司地下采場淺孔爆破。
  11. Observation of drilling cores and casting - sections and the characters of pore structures and permeability of the matrix of the lower - ordovician carbonate in comparing with the lower limit of a reservoir for matrix reveal that the porosity, permeability, maximum pore diameter, saturation and median throat diameter in the matrix with undeveloped fissures, holes and solution pores are far lower than those of a reservoir limit although some micro - pores are developed in the matrix which therefore has no capacity of storing and producing oil - gas

    摘要通過鉆井巖心和鑄體薄片觀察，根據下奧陶統灰巖基質的孔滲特徵和孔隙結構特徵，並與基質作為儲層的下限對照裂隙、洞穴和溶蝕孔洞不發育的灰巖基質，發現盡管有微孔隙的發育，但其孔隙度、滲透率、最大孔喉半徑、飽和度、中值喉道半徑等參數值遠低於儲層下限值，基本不具備儲集和生產油氣的意義。
  12. The algorithm only needs to solve an ill - posed linear system and a well - posed minimization problem and requires only the knowledge of the near field measurements of the scattered fields due to point source fields at a finite number of incidence and observation points distributed over a limited aperture

    該演算法只需求解一個不適定的線性系和一個適定的非線性最小化問題，而且只需要點源入射場的散射場在某個有限孔徑中若干有限個入射和測量點上的近場測量信息。
  13. Studies have shown, lead impeller nozzle it forms the hole to be equal to size of the nozzle, gush out from light, difficult to arrange bits and realize it cut one layer of advantages effectively ; under the equal condition, rotate the nozzle by oneself, can be designed in accordance with the actual need while vary the size of aperture of hole, gush out the distance longer effectively, it is apt to give play to the role of its pulse broken rock

    以此設計出限速部分的參數，且初步討論射流功率與轉速之間的關系。研究表明，內導葉輪噴頭形成鉆孔孔徑與噴頭大小相當，有效噴距小，不易排屑和實現其切向剝層優勢；同等條件下，自旋轉噴頭，成孔孔徑大小可依實際需要設計，有效噴距較長，易於發揮其脈沖破巖作用。
  14. The polyvinyl alcohol ( pva ) in precursor can improve the porosity and make the aperture distribution narrower. so the gels were not easily crazing when drying. simultaneously the fluorescence intensity of the dyes increased as a result of the probabilities of radiationless transitions

    在先驅液中加入少量有機聚合物聚乙烯醇1 （ pva ）不僅改善了孔結構，使孔徑分佈窄，凝膠在乾燥過程中不宜開d裂，而且使摻于其中的染料分子的遷移運動受到限制；降低了非輻射i躍遷的幾率，提高了染料的熒光強度。
  15. Polarizing beam splitter prism ( pbs ) is based on the interference inside thin film and the law of brewster. the merit is that it has big aperture, low dissipation and flexible design. without size limit, with low price and flexible design according to various design and manufacture method, so it is widely used in optical device, laser technology, optical display and optical store

    其優點是：孔徑大，損耗低，系統設計靈活；由於薄膜分光鏡沒有尺寸限制，同時可以以低價格生產出大尺寸器件，以及它們的結構根據設計和製作是多樣的，因此被廣泛應用曲阜師范大學研究生畢業論文稿紙第2頁于先學儀器、激鋸木、光電顯示和光學存儲等領域。
  16. The residual strength of damaged composite laminates and their repaired structures are calculated, and the influence of the repair parameters is discussed by the finite element and program stated above. some useful conclusion can be drawn according to the curves, which show the influence of repair parameters to repair effect. for the laminate which contains a circle hole, the suggested patch shape is circle, the patch size is 2 to 3 times than the diameter of damaged hole, the patch thickness is equal to the parent laminate and the patch stacking sequence is the same as the parent laminate

    用所建立的二維有限元模型和編寫的有限元程序計算損傷板及其修補結構的剩餘強度，並分析了修補參數對修補效果的影響；根據本文計算得到的修補參數對修補效果的影響曲線，可以得到如下結論： ?對于含孔復合材料層壓板，當圓形補片與母板鋪排順序相同、直徑為損傷孔直徑2 3倍、相對厚度為100時能夠獲得比較好的修補效果。
  17. Imaging interferometric lithography ( iil ) transfers different components of spatial frequencies through the same limited aperture at different time to enhance the resolution power of lithography with increasing less cost of system

    摘要掩模投影成像干涉光刻技術以在很小或幾乎不增加光刻系統成本的基礎上來提高光刻解析度為目的，充分利用系統的有限孔徑，將掩模圖形不同的空間頻率分別進行傳遞，最終以高解析度對掩模成像。
  18. Chapter 3 : in this chapter, the propagation characteristic and focusing properties of elegant hermite - cosh - gaussian ( ehchg ) beam through a finite aperture are investigated. the variance of the beam width, the generalized analytical expression of mg2 - factor and the power fraction of the truncated beam are derived theoretically and illustrated numerically

    第三章：討論了eleganthermite - cosh - gaussian （ ehchc ）光束通過有限孔徑的傳播特性和聚焦性質，得到了其光束束寬， m ~ 2因子及能量分數的解析表達式，並分析了影響光束參數的因素及其變化規律。
  19. Through the detailed analysis of cavity expansion theory, strain path method and finite element theory applied in jacked pile, some deficiencies are put forward. according to the analysis, some main original work are made. firstly, on the basis of strain path method ( spm ), closed - form analytical expressions of displacement fields caused by the installation of jacked pile are obtained in small strains

    本文首先詳盡地分析了圓孔擴張理論、應變路徑理論、有限元理論在靜壓樁擠土效應方面存在的不足，並在此基礎上做了如下工作： 1 、基於spm法的理論基礎，在小應變假定情況下，推導了靜壓單樁周圍土體位移場的解析解。
  20. In order to fully develop the theory of squeezed branch piles, in particular, the justification of its superior performance in terms of the bearing capacity and sinking displacement, we have derived the analytical formulas of the axial load and the strain at arbitrary depth ; based on existing static loading test results and research on belled pile, together with the analysis of on - site testing data, we have applied the expand theory on sphere holes to the computation of radial stress of squeezed branch piles under hole expansion ; taking the oil pressure of hole expansion in to account, we have find the a branch force under certain hole pressures, hence we can estimate the maximum bearing capacity of single piles ; we have introduced the experiential formulas for the bearing capacity of squeezed branch piles based on its stress characteristic and pile testing data ; we have also done numerical simulations of squeezed branch piles utilizing finite element method software ansys ; we have matched the simulation res ults with those of on - site basic load experiments, regenerating the distributions of stress fields and strain fields of squeezed branch piles, and from those distributions, we can determine the optimal distances between plates and piles

    為了完善支盤樁的設計理論，探求支盤樁高承載力和低沉降量的內涵，本文推導出了支盤樁任意深度的截面荷載以及位移隨深度變化的理論公式；基於已有的靜載試驗成果及有關擴底樁的研究成果，從對現場測試數據的分析，將球形孔擴張理論引入到支盤樁擴孔時徑向應力的計算，考慮到擴孔時的油壓數據，求得某一孔壓下的支盤力，據此估算單樁極限承載力；同時根據對支盤樁的受力特點和試樁數據的分析，提出了支盤樁承載力計算的經驗公式；用有限元分析的方法，利用大型有限元分析軟體ansys對支盤樁進行數值模擬，並將模擬結果同現場的靜載試驗結果進行對比，再現了支盤樁在荷載作用下土中應力場和位移場的變化，根據應力場和位移場的變化范圍，指出最佳盤間距和樁間距；為支盤樁的設計和施工提供了一個可量化的設計依據。
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