point element 中文意思是什麼
point element
解釋
給定元件-
Introducing the theory and application of boundary element method on the sound radiation, giving the process of solving vibration noise radiation problem using boundary element analysis software ; presenting the coupling theory and the combination analysis of finite element method and boundary element method, and doing relevant analysis based on close drum shell ; programming the noise data simulation program using the numerical calculation software, simulating the acoustic and pressure data of a key point in the transient response acoustic field of the close drum shell, realizing the audibility of the noise, using the virtual reality tools to simulate the vibration noise of the drum shell ; combining the finite element method and boundary element method to analyze the vibration noise radiation of some gear box, and completing the whole simulation process of the vibration noise of the gear box
綜合介紹了邊界元法在聲輻射問題上的理論及應用；並給出了運用邊界元法分析軟體求解振動聲輻射問題的過程。闡述了有限元法和邊界元法的耦合理論及組合分析方法，並以封閉鼓形薄殼為分析對象進行了相應的分析。利用數字計算軟體編制了噪聲數據模擬程序，並模擬了通過組合方法分析封閉鼓形薄殼瞬態響應聲場而獲得一關鍵點的聲壓數據，實現聲音的可聽化，隨后通過虛擬現實工具實現了該情形下橢球殼振動噪聲的虛擬模擬。 -
The probability of finding the particle in the volume element at point(x. y. z. )with edges dx. dy. dz is as follows.
在點（xyz）具有邊dx，dy，dz的體積元內找粒子的幾率如下。 -
A ' method of analyzing the stresses of the lining of fiber enlaced composite cylindrical shell under internal pressure is raised through building the theory equation with putting the ring shaped stiffener on the point of enlancing fiber. the result is good fit with the traditional finite element analyzing system
並結合對承受內壓的纖維纏繞復合材料圓柱殼進行了分析，通過建立理論方程提出了把加強環點建立在纖維纏繞處分析圓柱殼內襯應力應變的方法，計算結果與傳統有限元分析系統計算結果相吻合。 -
These are known as the nine components of stress and are illustrated with reference to an infinitesimal rectangular element about a point in figure 1. 2.
它們被稱為應力的九個分量，均示于圖12中一點附近的無限小的平行六面體單元上。 -
Consisting of the protracting graph of hydrogen - like atom ' s angle distributing, computer simulation of the symmetry of molecular orbital and chemical reaction mechanism, showing the molecular point group and symmetry element, computer simulation of molecular vibration, bravias ' s crystal lattice and their transforming, extracting of plane periodic lattice, extracting of solid periodic lattice, close packing of isometrical pellet and the structure of simple mental substance, close packing of unequal pellet and crystal structure of representative ionic crystal, computer simulation of phase analysis by x - ray diffraction
內容包括類氫原子角度分布圖的繪制，分子軌道對稱性和反應機理的微機模擬，分子點群和對稱元素顯示，分子振動運動的微機模擬，布拉維晶格和晶格轉化，平面點陣抽取，立體點陣抽取，等徑網球的密堆積和金屬單質結構，不等徑圓球密堆積和典型離子晶體結構， x射線多晶衍射的微機模擬十個子模塊。 -
So combine the item of “ space targets surveillance photoelectricity telescopes arrays system ”, this thesis does research in developing space targets visualization system. the main achievement in this thesis can be summarized as follows : 1. expatiate e the basic theory of satellite track dynamic, analyse the orbit characteristic of two - body problem and launch window, subastral point calculation, visibility and coverage analysis, two - line element sets
本文結合「空間目標監視光電望遠鏡陣系統」課題，進行了空間目標可視化系統的設計和研究，主要作了以下幾方面的工作: 1 、闡述了衛星軌道動力學的基本原理，分析了二體軌道特性和發射窗口的基本特性，星下點軌跡計算、可見性和覆蓋分析和兩行根數。 -
An element of the material at such a point behaves like a crystal of the orthorhombic system.
材料中此點附近的一個單元體，其表現猶如正交晶系的晶體。 -
As a practical application, the safety situation of jiujiang dike under the 1998 pluvial condition of once a hundred years in yangtze river has been evaluated by the reliability method from the point view of the seepage stability in terms of probability analysis and two dimensional saturated seepage finite element analysis combining with the mechanism of seepage burst in jiujiang dike summarized in the thesis
通過滲流有限元和滲流可靠性分析論證了1998長江流域特大洪水災害中九江市防護大堤發生的嚴重潰口破壞的滲流破壞機理。分析、比較得出結論：堤防下游坡腳的出逸比降接近和超過臨界比降，在1998年長江百年一遇的洪水條件下九江大堤潰口斷面的抗滲可靠性僅在55左右的非常低水平。 -
Secondly, after analyzing the strategic relations between the manufacturer and the supplier, the dissertation brings forward that the manufacturer must category the materials and select different supplier to built relations, explains the features and the advantages and disadvantages of strategic partnerships, and bring forward that the manufacturer must give some special request for the supplier strategic partner. thirdly, the dissertation analyses and summarize the existing methods of supplier selection, and point out their disadvantages. then, the dissertation apply the extenics to the dynamic selection model of the strategic supplier, building the evaluation indexes with implication systems, selecting strategic supplier with rhombus thinking method, looking for the suppliers with the extension of the matter - element, selecting the right supplier with the extension evaluating methods, replacing the dissatisfying features with the transformation matter - element method and making it more better
本文首先對供應鏈管理和戰略合作夥伴關系的國內外研究現狀和發展趨勢進行了研究；其次，對製造商和供應商的戰略合作夥伴關系進行分析，指出了製造商需要對采購物料分類，針對戰略型物料選擇戰略合作夥伴建立戰略合作夥伴關系，闡明了建立戰略合作夥伴關系的特徵及優缺點，並提出了製造商對供應商戰略合作夥伴的具體要求；再次，對目前存在的供應商選擇方法進行了深入的分析和總結，指出了不足之處，並提出了應用可拓理論進行供應商戰略合作夥伴選擇的思路；然後，應用可拓理論建立供應商戰略合作夥伴選擇動態模型，其中，用蘊含系方法建立評價指標體系，用菱形思維建立選擇模型，利用物元的可擴性來尋找待評供應商，用可拓評價進行收斂，並用物元變換對已經選中供應商的不滿意特徵進行變換，使其完善；最後對r企業的供應商戰略合作夥伴選擇進行了本文模型的實證部分，使模型不僅具有理論意義，更具有實踐意義。 -
Is a hard, brittle, corrosion - resistant, gray to white metallic element extracted from wolframite, scheelite, and other minerals, having the highest melting point and lowest vapor pressure of any metal
顏色呈灰色或棕黑色，硬度高，延性強，熔點極高，常溫下不受空氣侵蝕主要用途是製造燈絲和高速切削合金鋼，各種鎢電極，也用於光學儀器，化學儀器方面。 -
I should point out that it is just as problematic to shoehorn a full name into the content of a single element as it is to put it in an attribute
還應該指出，如果把整個姓名完全塞進一個元素的內容中或者放在屬性中一樣會造成問題。 -
This article include three part, in the first part, we clarify the principle of the stereopsis developing, including the physiological element of stereopsis, its developing process and classification. and point out that binocular parallax is the necessary element of stereopsis. review the equipment or method that have been or deing used in the stereopsis test, and the suitable people to use them, analyze all kind of problem or disadvantage of them
在第一部分中闡述了立體視覺的形成機制，包括產生立體視覺需具備的生理基礎、立體視覺的形成過程以及立體視的分類，並指出雙眼視差是產生立體視的必要條件；簡單回顧了在立體視的心理物理檢查中曾被使用或正在使用的儀器和方法，各種儀器的適用人群，分析其中存在的各種問題。 -
In order to choice the appraisal approach ? iscount cash flow model that it is look as a perfect and abreast on the theory and practice, in addition, the paper give a minute description about the two main element ? ash flow and the discount ratio of the model. so can know how to apply the model further in new high technology enterprise, of course, any theory including cash flow model is comparative when looked as perfect and the best theory, this approach has many difficult point also when use the model appraise the value of new high technology
本文從高新技術企業特點及評估特性入手，闡述了傳統價值評估方法和國際上提出的一種新思路在高新技術企業中的應用利弊，從而選擇了目前比較完整、具有理論意義的評估方法? ?折現現金流量模型，對高新技術企業進行價值評估，並對這個模型的兩大基本要素?現金流量和折現率進行了詳盡的分析，以便更明確如何在高新技術企業中運用此模型。當然，任何理論說其比較完整、具有理論意義都是相對而言的，折現現金流量模型也不例外，採用折現現金流量法評估高新技術企業也存在著難點，此論文對其進行了探討，並對傳統評估方法和新思路加以結合，使高新技術企業價值能更好的得到體現。 -
Presents the model proposed for analyzing the vibration characteristics of shrouded blades and their calculation method by employing a wave propagation theory and modal synthesis technology coupled with a finite element method from the view point it is possible not only to conduct frequency modulation of the shrouded blades of a gas turbine, but also to utilize the friction effects between them to dissipate energy, thereby attaining the aim of vibration alleviation, as shrouded blades have been widely used in the design of high - speed turbomachinery, such as modern gas turbines and steam turbines, and with the shrouded blades forming an integral whole in a centrifugal force field, the vibration characteristics of the whole ring of blades are different from those of a single isolated blade, and this makes it essential to take into account the integral effect of blade shrouds, concludes from the calculation examples and engineering application that the above approach is valid and correct along with the possibility of considerably reducing the scale of calculation and analysis, and points out it is necessary to take into consideration the coupled effect of the whole ring of blades while the dynamic characteristics of shrouded blades is being analysed
帶冠葉片不但能調頻，還可以利用葉冠之間的摩擦效應來耗散能量，達到減振的目的.帶冠葉片在離心力場中形成一整體，其整圈葉片振動特性不同於單個孤立葉片，需考慮葉冠的整體效應.利用帶冠葉片系統的循環對稱性，提出了採用波傳播理論和模態綜合技術，結合有限元方法研究燃氣輪機帶冠葉片振動特性的分析模型和計算方法.算例和工程應用證明了該方法是效性的、正確的，並可以大大降低計算分析規模.研究表明帶冠葉片動力特性分析時必須考慮整圈葉片的耦合效應 -
4. from the point of view of inverse problems in mechanics, two trains of thought for solving ics / ibs computative problems, i. e : by means of intelligence computation method without geometrical modeling and by the aid of finite element inverse analysis method with geometrical modelingare expounded. by comparing these two methods, a feasible, integrated and modularized solution
從力學反問題的角度出發，闡述了智能橋梁結構的智能計算問題的兩種西南交通大學博士研究生學位論文第n頁思路一一無模型力學反問題的計算智能法解決思路以及有模型力學反問題的有限元法解訣思路。 -
Element to explicitly point to the configuration file
元素顯式地指向配置文件。 -
From this starting point and with the help of fairness and efficiency - the logical intermediaries, deng was able to find the essential element of socialism. fairness and efficiency as logical intermediaries have the shortcoming of being one - sided and transitional. only when they are considered as a whole can they rise to the status of being the logical destination
在生產力這一邏輯起點的基礎上循序漸進，經過邏輯中介即效率與公平來把握社會主義本質的方面、環節，效率與公平作為邏輯中介具有片面性和過渡性的特點，只有將它們統一起來加以考察，才能在思維行程中上升到邏輯終點。 -
The relationships among different shareholders, especially the agent relationships between the outside shareholders and the dominant shareholders ( or the board dominated by them ), are the start point and the determinant element for other types of agent relationships in a company. therefore, the corporate governance should commence with the inner - shareholders governance. that is to say that we should put the focus on finding the solution to the interests conflicts between outside shareholders and dominant shareholders ( or board of directors ) and resolve the agent problem between them
股東資產是公司存在的首要前提，股東權益是公司的權益之源，股東之間的相互關系，尤其是外部股東和控制型大股東（或受其控制的董事會）之間的代理關系就成為公司中其它類型代理關系的起點和和決定性因素，從而，公司治理的出發點應當放在股東的內部治理上，即解決外部股東與控制型大股東（或董事會）之間的利益沖突和代理問題。 -
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 。 -
Moreover, we compute the change against neutron irradiation of heavy element abundance in typical branching point 85kr of s - process and result is good agreement with the former too
重元素的核合成中最重要的因素之一是中子源問題，穩定的中子源是重元素的核合成必要保證。
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