base element 中文意思是什麼

base element 解釋
成堿元素
  • base : n 1 基底,基,根基,底座;底層,底子;(紀念碑等的)基址;(山)麓。2 【軍事】基地,根據地。3 根...
  • element : n 1 要素;成分;(構成)部分;分子。2 【化學】元素;【數學】元,素;【機械工程】單元;單體;【無...
  1. Third, on the base of expatiating on experimental research method and theoretical research method of joints, the paper points out two kinds of valid methods, which are used to analyze the tube joints stress of dendriform structure by making use of semi - analytical method and inelastic large deflection finite element analysis method, confirms to apply the evaporative pattern casting process as the facture method of dendriform structure cast joints, and detailed dissertates the casting theory, casting process, generation cause and prevention measure of casting flaws, heat treatment method and inspection standard about cast steel joints

    然後在闡述樹狀結構節點實驗研究方法和理論研究方法的基礎上,提出了利用半解析法和彈塑性大撓度有限元法兩種有效分析樹狀結構管節點應力的方法,並給出兩種方法的詳細表達式及它們各自的優缺點。通過對鑄鋼件常見製作方法的介紹,確定了採用消失模法作為樹狀結構鑄鋼節點的製作方法,並詳細論述了用消失模法製作鑄鋼節點的鑄造原理、鑄造工藝、鑄造缺陷產生的原因及防治措施、鑄鋼節點的熱處理方法以及檢驗標準。
  2. First, the theory of fretting wear and studies on fretting fatigue were introduced and the parametric method was used in the process of creating the model of dovetail joints in ug software. the elastic contact problem is analyzed in finite element method ( fem ) and is used to the parameters " distribution and contact stress of the joint are obtained on the base of ansys code. with the effect factor of load frequency, the prediction method of fretting fatigue life of dovetail joint under low and high / low cycle complex load is proposed

    本文介紹了微動損傷的機理和微動疲勞壽命的研究方法;利用ug軟體對燕尾榫聯接結構創建了參數化實體模型;基於ansys軟體平臺求解彈性接觸問題,獲得了榫聯接結構接觸應力及接觸狀態量的分佈;在已有微動疲勞壽命預測模型的基礎上,引入載荷頻率影響因子,對低周、高低周復合載荷作用下的燕尾榫聯接結構進行了微動疲勞壽命的預測,與試驗結果對比表明採用本文提出的方法預測榫聯接結構的微動疲勞壽命是有效的。
  3. Roll over protective structure ( rops ) is a device which installs on out of construction vehicle. the main functions are : when the vehicle rolling over. rops can prevent the vehicle from rolling over further, and reduce the possibility of rolling vehicle injures operator ; when the vehicle traveling on freezing soil. concrete and rock, it has large resist continuous impact ability ; when the vehicle overturning rops can support the whole vehicle. arrangement of falling object protective structure ( fops ) can block objects ( such as trees, rocks ) so that supply protection for operator. this problem is that research rolling over and falling objects protective structure of bulldozer by learning research condition of rops / fops and relative lay down international standard. on the base of theory analysis. detrudes counting formula of rops / fops deformation through founding mechanics analysis model of rops / fops at the stage of elasticity and plastoelastic. and finds a set of feasible nonlinear finite element analysis counting. lt calculates rops / fops plastoelastic deforma variable of 320hp bulldozer, bulldozer has been carried out by optimizing design method

    其主要功能是:當車輛滾翻時, rops能刺入未凍土壤而阻止車輛的進一步滾翻,降低滾翻的車輛對系著安全帶司機軋傷的可能性;保證rops在碰撞和沖擊變形不大的地面(如凍土、混疑土上、巖石)時,能具有相當大的抗連續沖擊能力;當車輛已經處于顛覆狀態時,已經變形的rops應能支撐住整車。落物保護裝置(簡稱fops ) ,其構件的布置方式要能遮蔽墜落的物體(如,樹木、巖石等) ,以便對司機提供適當的保護。本課題主要通過了解國內外有關對rops fops的研究情況和有關國際標準的制定,對大型推土機傾翻和落物保護裝置進行研究,在理論分析的基礎上,通過建立rops fops的力學分析模型,推導彈性、彈塑性階段rops fops變形的計算公式,建立一套可行的rops fops的非線性有限元分析計算方法。
  4. From lots of models, this paper chooses seven models - model of mander, model of zhangxiuqin, model of sheikh, model of park, model of saatcioglu, model of fafitis and model of yuanjingen, which express the mechanics capability of confinement concrete perfectly and representatively. the paper modified some incorrect points of the models after studying them and some different hysteretic rules - hysteretic rules of park, hysteretic rules of blakeley, hysteretic rules of mander etc. were added to the models. on the base of above, the models were programmed and added in the program based on the column - beam element of the fiber model

    本文從大量的約束混凝土本構模型中篩選出具有代表性的七種模型,即mander模型、張秀琴模型、 sheikh模型、 park模型、 saatcioglu模型、 fafitis模型和袁錦根模型作為考察和研究對象,對部分模型局部明顯不當的地方進行了修改,然後在各模型中添加了不同的滯回規則,包括park滯回規則、 blakeley滯回規則、 mander滯回規則、張秀琴滯回規則、袁錦根滯回規則以及本文提出的滯回規則等,使其能適用於結構地震反應動力分析。
  5. First, it was taken that a discuss about the effects of geometry parameters of each piezocrystal on direction parameters ( main lobe width, side lobe amplitude, elimination of grating lobes ), amplitude of ultrasonic pressure, element viberation pattern, mutual radiation among elements, efficient test regions, ability to keep accurate and near - field distance and so on. based on the direction of ultrasonic field in ulpa deduced by ourselves. in addition, on the base of integrating all kinds of factors, it was put forward that the principle and method for optimized design of geometry parameters of piezocrystals in ulpa transducer, and its design programme and interface were compiled

    首先在推導超聲相控線陣換能器聲場的指向性的基礎上,就各個晶片幾何參數對指向性指標(主瓣寬度、旁瓣幅度、消除柵瓣) 、聲壓幅值、陣元振動模式、陣元間互輻射、有效檢測區域、精確控制能力、近場長度等方面的影響進行了論述,並在綜合各方面影響的基礎上,提出了晶片幾何參數優化設計的原則和方法,編寫了設計程序和界面。
  6. In the last, silo structures or its base is simplified as suspensory beam, witch ca n ' t correspond with project practice o considering the interaction among bulk solid, structure and its foundation, a semi - analytic element method static and dynamic analysis on silo structures on elastic foundations is presented in this paper

    本文以某大型筒倉結構為例,考慮到散體、結構、地基的相互作用與影響,考慮地基與基礎及結構的耦合問題,採用半解析半數值的方法對彈性地基上的筒倉結構進行了靜、動力的分析計算。
  7. Base station telephonic control element

    基站電話控制單元
  8. ( 2 ) according to the forming model of the deep pull cracks, they can be divided into three classes pulled cracks -, pressed cracks and sheared cracks. ( 3 ) based on the two - dimensional and three - dimensional finite element methods. the following results can be affirmed : in the slope excavating process, the base surface will rebound in the direction of the excavating surface ' s excerior normal. the maximal displacements of the left and right bank are + 3. 6cm and + 2. 4cm ; the arch abutment will rebound in the direction of the river valley, the maximal displacements of the two bank are + 3. 5cm and + 2. 2cm ; the upstream and downstream surface will rebound in the direction of the normal direction. the maximal displacements are + 2. 1cm and + 1. 7cm. ( 4 ) the natural slope is stable

    ( 3 )通過二維及三維有限元分析得知,左右岸拱肩槽邊坡在開挖過程中,開挖底面主要表現為朝開挖面外法線方向發生回彈,左右岸最大位移量分別為+ 3 . 6cm 、 + 2 . 4cm ;拱端面主要表現為向河谷方向發生側向回彈,左右岸最大位移量分別為+ 3 . 5cm 、 + 2 . 2cm ;上下游坡面主要表現為向臨空方向的回彈,左右岸最大位移量分別為+ 2 . 1cm 、 + 1 . 7cm ;開挖使巖體產生由卸荷回彈導致的傾倒拉裂現象。
  9. Element in a page to specify an alternate base path

    元素,以指定替代基路徑。
  10. The base uri of the nodes in the result tree fragment is the base uniform resource identifier of the variable - binding element

    該結果樹片斷中的節點的基uri是變量綁定元素的基統一資源標識符( uri ) 。
  11. On the base of above it, this paper discuss the synthesis of optimum distributed arrays by nonuniform spacing in the sense of dolph - chebyshev. having derived the equations of optimum element distribution, we analyze the exponentially spaced array, which are optimum when the elements are isotropic and equally weighted, and the array by general raised cosine function. the formulate for estimating the sidelobe envelope, beamwidth of the array pattern and clean region width are obtained

    推導了最佳陣元分佈方程,分別對陣元無方向性和等加權時的最佳分散式陣列? ?指數間隔陣列和採用廣義升餘弦加權的最佳分散式陣列進行了分析,推導了天線方向圖旁瓣包絡、波束寬度,干凈掃描區寬度的估計公式,給出了近軸旁瓣電平與陣列參數的關系。
  12. Firstly, we generalize and analyze the advantages and present research of elliptic curve cryptography ; secondly, we study the basic theory of the ecc ; thirdly, we illustrate the safety of the ecc and discuss the elliptic curve key agreement scheme, elliptic curve encryption scheme and elliptic curve digital signature algorithm ; fourthly, we study fast algorithms of the multiplication and inversion multiplication of the element of in the underlying finite field f2m whose characteristic is two represented by the two basis of optimal normal basis and polynomial basis. we make improvements to the fast algorithm of the polynomial basis multiplication by hankerson and base on the experiments, we describe the properties and compare the advantages of the multiplication and inversion multiplication of the elements in f2m field under optimal normal bases and polynomial basis. results concluding from the study car be used as references in the realization of the elliptic curve cryptosystem ; fifthly, we overview the current fast algorithm of point multiplication, improve the fix base point comb algorithm, advance the speed of the whole system and remark the advantages and disadvantages of the popular algorithms based upon the experimental datas ; sixthly we realize the algorithm library of elliptic curve cryptography based on the f2m. only change slightly in our algorithm library can we realize the ecdh, eces, ecdsa based onf2m of anysize ; seventhly, we realize the ecc on two secure elliptic curves, including ecdh, eces, ecdsa

    本文首先介紹並分析了橢圓曲線密碼體制的優點及研究現狀;其次研究了橢圓曲線密碼體制的基本理論;第三,分析了橢圓曲線密碼的安全性並介紹了密鑰共享,加密,數字簽名等橢圓曲線密碼體制;第四,深入研究了特徵為2的有限域f _ 2m中的元素在多項式基和最優正規基表示下的乘法運算和乘法逆運算的快速演算法,並對hankerson等人提出的多項式基下的乘法運算的快速演算法作了改進,而且在實驗的基礎上不僅分析研究了f _ 2m域中元素在多項式基和最優正規基表示下的乘法和乘法逆運算的性能,還對這兩種基表示下的f _ 2m域中元素運算效率的優劣作了比較和研究,所得的結論可供在實現橢圓曲線密碼體制時參考;第五,研究了目前流行的計算橢圓曲線標量乘法的快速演算法,同時改進了固定基點梳形法,提高了整個系統的速度,並在實驗的基礎上分析研究了流行演算法的優劣;第六,實現了基於f _ 2m的橢圓曲線密碼體制的演算法庫,在我們的演算法庫中只需稍微改變便能實現基於任意尺寸的f _ 2m上的ecdh , eces , ecdsa等橢圓曲線密碼體制;第七,實現了兩條安全橢圓曲線上的橢圓曲線密碼體制,包括ecdh , eces , ecdsa 。
  13. Multiple base element fuzzy algorithm for prediction of cost of engineering projects

    工程項目成本預測的多基元模糊演算法
  14. We mainly discussed the background and the realistic sense of the cadre term audit. we discuss the relations between the cadre term audit and the trust agent and revealed that public entrusted economic duty is the base of the cadre term audit ; we also study the content and basic element of the cadre term audit. comparing the general auditing and operator ' s term economic duty auditing, we analyse the characters of the cadre term auditing

    首先為領導任期審計的概述,主要闡述了其產生的背景及現實意義,論述了領導任期審計與委託代理的關系,揭示了公共受託經濟責任是領導任期審計產生的基礎;研究明確了領導任期審計的內容、基本要素,並通過與一般審計與企業經營者任期經濟責任審計的比較,分析了領導任期審計的特點;第二部分為領導任期審計案例。
  15. One gene cassette usually contains a open reading frame encoding antibiotic resistance and a specific recombination site called attc ( or 59 - base element )

    基因盒往往由一個編碼抗生素抗性的開放讀碼框( orf )和一個整合位點attc組成。
  16. Ancestor element which is the base element for

    祖先元素(它是
  17. To list the specializations that it provides for a base element

    來列出了它為基本元素提供的專門化。
  18. Base element as well as the

    基本元素和
  19. In most domains, a specialized element adds semantics to the base element

    在大多數域中,專門化元素為基本元素增添了一些語義。
  20. For clarity, the entity name is composed of the domain identifier and the base element name

    為清晰起見,實體名稱由域標識符和基本元素名稱組成。
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