導邊空化 的英文怎麼說

中文拼音 [dǎobiānkōnghuà]
導邊空化 英文
leading edge cavitation
  • 導 : 動詞1. （引導） lead; guide 2. （傳導） transmit; conduct 3. （開導） instruct; teach; give guidance to
  • 邊 : 邊Ⅰ名詞1 （幾何圖形上夾成角的直線或圍成多邊形的線段） side; section 2 （邊緣） edge; margin; oute...
  • 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...
  • 空化 : cavitation空化機理 cavitation mechanism; 空化噪聲 [聲學] cavitation [aeration] noise; 空化作用 [化學] cavitation
  1. Firstly, in spherical coordinate system, the sovp formulation for the time - harmonic electromagnetic fields of the current dipole in conductive infinite - space is derived, using reciprocity theorem and transforming relations between special functions. then, selecting appropriate coordinate system, using superposition principle, the boundary - value problem of modified magnetic vector potential on the problem of a time - harmonic current dipole in spherical conductor is solved and analytical solution is obtained. finally, by means of the addition formulas of legendre polynomial and spherical harmonics function of degree n and order 1, the analytical solution in spherical coordinate system specially located is transformed into that in spherical coordinate system arbitrarily located

    首先利用特殊函數間的轉化關系和互易定理推導得到了無限大導體空間中球坐標下時諧電流元電磁場的二階矢量位形式：然後利用疊加原理，選擇合適坐標系，求解了導體球中時諧電流元的修正磁矢量位邊值問題，得到了問題的解析解；最後依據不同坐標系下電磁場解的轉化原理，藉助勒讓德多項式和n次1階球諧函數的加法公式，將坐標系特殊安放時的電磁場解析解變換到坐標系一般安放時的解析解，給出了球內電場和球外磁場的並矢格林函數。
  2. In the moving that the urbanization enter the process inside, farmer to settle the door to move, not and always voluntarily of, because policy the oneness that compensate, change with environment, and the primitive society space construction breakup, personal body work attitude for edge for losing the etc, causing the this group incline toeing and bringing the some and social problem, in today changsha city farmer setting inside everyone ' s and personnel and concrete engineering technical personnel

    在城市化進程中，農民安置戶的拆遷並不總是自願的，由於政策補償的單一性和環境變遷、原有社會空間結構的瓦解、個人身份缺失等導致這一群體的邊緣化傾向及帶來若干社會問題，在今日長沙農民安置中各方參與人員的工作態度與具體工程技術人員在設計中不經認真調查簡單套用基於城市生活方式的住宅與小區指標也是造成這些問題的部分原因。
  3. So for, because of the restriction of experiment boundary condition that different original condition and over ideal theorization model that is mentioned in the preface, it is imminence needs to understand the changing of reality soil on the true wave loading in true time and space so that validated and lead next research in theory and simulation

    正如在前言中對此方面研究評述所提及，目前的研究被與實際迥異的實驗邊界條件和過分理想化理論模型制約，迫切需要了解真實的時間和空間尺度下，真實的土體在真實的波浪荷載作用下將發生怎樣的變化，以驗證和引導我們進行的理論與模擬研究。
  4. The conformal microstrip antenna with some unique character has been applied in many fields, especialy on speedy objects. in this paper, an efficient fdtd algorithm is introduced to analyse the microstrip antenna. firstly, the fdtd formula in descartes coordinate system and in cylindrical coordinate system are obtained from the time _ dependent maxwell equations using the yee algorithm in a calculating region where the dielectric parameters are independent of time and space. the choice of the space discretization units and the time discretization interval are discussed which are decided by the accuracy and stability respectively. the shape and setup of the excitation source are discussed too. the excitation source is chosen to be gaussian pulse in shape. secondly, the mur ' s first - order and second - order boundary condition are deduced in cylindrical coordinate system. the methods of transforming radiation fields from near zone to far zone in the frequency domain and in the time domain are presented when fdtd is applied to analyse the characteristics of far zone. finally, three kinds of microstrip antennas are analysed. they are a slot antenna that lies on a plane ground of a microstrip, a slot antenna that lies on a cylindrical ground of a microstrip and a microstrip line _ fed aperture coupled stacked rectangular patch antenna in cylindrical coordinate system

    本文從麥克斯韋旋度方程出發，建立了笛卡兒坐標下無源空間中均勻無耗媒質的fdtd基本方程和圓柱坐標下無源空間中均勻無耗媒質的fdtd基本方程，詳細討論了fdtd法計算中時間步長和空間步長的選取原則以及激勵源的類型和設置；推導了mur一階和二階邊界條件在圓柱坐標下的差分格式；給出了在用fdtd法計算天線的遠場輻射特性時必需採用的頻域和時域近場遠場變換技術；最後用fdtd法計算了平面微帶縫隙天線、柱面共形微帶縫隙天線和柱面共形微帶層疊天線的輸入阻抗和遠區輻射場，並分析了天線的一些參數的變化對天線輸入阻抗的影響，得出了一些有用的結論。
  5. Change of flow and sediment conditions, inflow of branches, the different river boundary conditions and the different respond methods caused by the different of river boundary conditions are the cause of complex response in replacement of the spatial and temporal process

    輸入水沙條件的變化、水庫下遊河道支流入匯、河床邊界條件的變化以及因此導致的不同調整方式是引起時空演替復雜響應的主要原因。
  6. Researching on the technology if reverse order is to study strains if pits, structural systems if basement, environmental surwey and underpinnings. on account of emphasizing developing methods if checking strength if pick - ets, modemizing machenes of excavation and studying methods of underpinning is put forward and is a way if controlling the quality of pickets in sites, which leads an active effect ; synthetic application if rankintheory, spatial and time effect theory to excavation tl aanalyze the state of soil force and strain is brought forward and the time effect should be considered in the zone of clay, the formation and development of soil plasticity are analyzed and the most dangerous zone to decide how to excavate and where to begin is found ; analyzing the cause of picket settlement during reverse order and the differential settlement and discussing hlw to solute it. duringh the temporary survey and the environmental warship, bringing rorward the theory of environmental vibration and analyzing the state of soil force and probability of losing stabilization of soil under the effect of environmental vibration ; analyzing the state offeree in underground concrete wall by the method of mathematics and pointing out the place of the maximum force and deformation. based on systematic illustrating the reverse order, problems about application and development of reverse order and suggestions also are expressed

    鑒于國內外的研究把重點放在大力發展工程樁的實驗室承載力監測方法與設備、如何使土方開挖機械現代化及對周圍建築的臨測方法上，本文提出了現場利用聲波層析成像技術監測鋼砼樁內部質量的方法與程序，並得出了聲波層析成像技術是砼樁的動態質量檢測的有效手段，這對指導施有積極、現實意義；提出了綜合運用朗肯土壓力理論、基坑空間和時間效應影響理論來分析逆作法施工過程中基坑邊坡土體應力及應變的變化情況，指出粘土地區也應考慮時間效應，並且進一步分析了基坑邊坡土體的塑性區形成和發展，找出邊坡最不利的區域，以確定地下室土體的挖掘的方式和順序，指出憑主觀臆斷與經驗來施工是不可取的；在分析、經較逆作法與大開挖順作法的地下室結構體系受力情況及施工順序的不同，提出了節點處理技術；分析了逆作法施工期間樁的沉降變化原因及由此而產生的差異，並探討了解決的方法；本文還提出了環境振動對土體邊坡穩定產生影響的觀點，並分析了在環境振動影響下，土體的應力狀態及土休失穩破壞概率，並且還運用彈性力學知識和數學分析的方法定量地分析了地下混凝土墻受力狀態，指出了被監測墻體的最大應力、應變位置。
  7. The effective optimization design programs for different cases are developed by integrating the following several aspects which involves the flow analysis, adjoint equation solution, gradient solution, optimal arithmetic and grid generation. some practical design tests for airfoil and wing show that the continuous adjoint approach is very effective and useful method for aerodynamic optimization design. at the same time, we have done the research of aerodynamic optimum design for airfoils by using navier - stokes equations

    （ 4 ）研究了基於控制理論和三維navier一stokes方程的優化設計理論，在計算坐標下詳細推導了該優化設計理論，得到了計算坐標系下描述的共扼方程數學描述形式，並以給定目標壓力分佈的氣動反設計為例，導出了相應的共扼方程邊界條件，以及關鍵的梯度求解具體表達形式，為了求解方便，把計算空間上描述共扼方程表達形式變換到物理空間中進行描述，通過與ns方程表達形式對比分析，最終給出了一種直觀的共轆方程表達方式。
  8. This original presents the universal insulation materials and the general testing and evaluating method for pipelines " insulation of the thermodynamics power generating plant ; performs the insulation testing and evaluating of the high temperature steam pipelines of longfeng heat and power plant ; takes composite structural research on the high temperature steam pipelines, and establishes the relevant optimizing physical and mathematical model of the insulation layer, confirms the constraint and boundary condition, carries on optimizing design for the thickness of insulating layer ; in order to more systematically analyzing the present situation of insulation of the installation and pipelines of longfeng heat and power plant, develops a suit of software namely " the information associated decisive system for the insulation project ", taking advantage of this software can achieve. the design, evaluation and direction to building for the insulation project, examine the criterion of design and building, the perform ance and manufacture data of different insulation material, which is convenient to the selection of insulation material

    在進行保溫結構優化的過程中，主要是針對高溫蒸汽管道進行復合結構研究，並建立相應的物理及數學模型，找出其約束條件和邊界條件。同時為了更加系統地對龍鳳熱電廠設備及管道的保溫現狀進行分析，開發了一套「絕熱工程信息決策系統」軟體，利用該軟體可以實現絕熱工程的設計、評估及施工指導，並可以查閱設計及施工標準、各種絕熱材料性能和生產廠家的資料，便於絕熱材料的選擇。該套軟體的設計填補了國內空白，避免了絕熱工程改造、設計及施工過程中的無序現象，規范了絕熟工程市場，從而為我國絕熱工程的選材、設計、施工及管理提供科學依據。
  9. This artic1e introducts the concepts of main attribute and marginal attribute, exp1ains the concepts, meaning, causes and connections ; finds out the causes of city attributes ( especia11y margina1 attribute ) in nature section and society section ; ana1yses the expressions and differences between the two sides of city attributes in the ideas, constructions, evo1utions of city space form : at 1ast, make an expectation of the deve1opffient of city space form, give out three forms of city deve1opment

    本文從文化現象中引入了主流和邊緣的概念；闡述了城市屬性的概念、意義、緣起以及相互關系；從自然地理因素和社會人文因素兩方面初步探尋了城市屬性（主要是邊緣屬性）形成的原因；切入城市設計，從城市空間形態的表象、結構、衍變三個層面上分析了城市屬性在城市空間形態上的表現及其差異；最後以生態為指導原則，展望了城市邊緣屬性空間形態的衍變和應對策略，提出三種邊緣城市發展的模式。
  10. On views separation and coordinate standardization, a coordinate axis projection - based approach and an image scanning - based approach are proposed for views separation, the former reduces the compare times of 2d primitive in drawings and raises the efficiency simultaneously, the latter can separate free nember views of engineering drawing accurately and it has no correlation with complexity of primitive, then, two sets of 2. 5d coordinate systems are introduced as intermediates to relate the 2d original drawing system to the 3d space projection coordinates anfd a formal technique is developed for constructing transformation matrices between coordinates

    3 .在工程圖視圖分離和坐標規格化方面，提出了改進的坐標軸投影分離演算法和基於圖像掃描的視圖分離演算法。前者減少了工程圖中二維實體的比較次數，提高了運行效率;後者可以準確分離具有任意視圖數目的工程圖，且演算法的穩定性與邊界復雜度無關。通過引入二維半中間坐標系推導出了從繪圖坐標繫到空間投影坐標系轉換的轉換運算元並給出了基於轉換運算元的坐標規格化演算法。
  11. Using maxwell electromagnetic equations, by solving the boundary - value problem of magnetic vector potential, analytical expression to impedance increment of the solenoid coil in eddy current testing of the medium in half space was given. theoretical result was modeled in computer. results showed the validity and feasibility of the model

    利用maxwell電磁方程組，通過求解矢量磁位的邊值問題得到了矢量磁位的解析解，進而導出了媒質上方放置式空心線圈的阻抗增量解析式，並對阻抗變化表達式進行單層板厚度和三層板間隙的檢測模型進行了模擬。
  12. And then basing on this the following opinions can be concluded : the relationship between different type of industrial location and industrial structure ; hi - tech industry can accelerate the upgrade of the industrial structure and the alteration of the industrial spatial structure ; connotation is developed primarily in the traditional industry of the old industrial area while the extension function is inconspicuous ; the industry substitute and the upgrade of industrial structure of the city takes place after the vanishing of the location of the decadent middle / small - scaled enterprises ; the upgrade of the industrial structure rests with the renovation of the product structure and the technology structure in the process of the removal of the enterprise from the downtown to the suburb

    在此基礎上，得出不同類型的工業產業的區位與工業結構的關系：高新技術產業推動產業結構升級和工業空間結構變化；老工業區內的傳統工業以內涵發展為主，外延作用不明顯；衰亡的中小企業區位消失后，發生產業替代，城市產業結構升級；原市中心區內的企業向城市邊緣遷移的過程中，企業產品結構與技術結構改造，決定產業結構升級。文中有針對性的提出解決主導工業區位與工業結構關系的優化，城市老工業區的再開發等問題的方法。最後，概括性總結中國城市工業區演變的特殊規律及城市工業區變化與工業化進程關系。
  13. Through the observation and survey on wuhan city and the surrounding rural area, the article analyzes the communion model applicable to the various space and the coincide degrees between design function and use function, compares the interpersonal communion style, frequency and the use of communion site from some different aspects such as the two kind of urban and rural zones, cultures and lifestyles, in order to propose some guide in the relevant aspects at the design

    摘要該文通過討武漢市及其周邊農村的觀察與調研，分析各種空間所適宜的交流模式、設計功能和使用功能的吻合度，比較在城市與農村兩種不同地域、不同文化與生活方式下，人與人之間的交流方式、交流頻率以及對交流場所使用的異同，從而指導我們在相關方面的設計。
  14. In this thesis, the parabolic stability equations ( pse ) in the different coordinate systems are driven from navier - stokes ( n - s ) equations. the stability problems of the boundary layers for three - dimensional body, and the spatial evolution process of the c - type instability are studied

    本文從navier - stokes （ n - s ）方程出發，導出了不同坐標系下的拋物化穩定性方程（ pse ） ，研究了三維物體的邊界層穩定性問題，以及三維擾動的c型失穩的空間演化過程。
分享友人
分享到 Line

分享到臉書