橢圓量規 的英文怎麼說
中文拼音 [tuǒyuánliángguī]
橢圓量規
英文
tram trammels-
An instrument for gauging and adjusting machine parts ; a trammel
量規；卡尺一種有來測量並調節機器部件的儀器；橢圓規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 。The results indicated that ( 1 ) " longxianhuosuan " presented more regular and more densely - arranged epidermal cells in its scapes than " gailiangsuan " ; ( 2 ) " longxianhuosuan " showed a lower stomata number but a larger stomatal aperture in its scape surface than " gailiangsuan " ; its scapes had a great number of secretory cells, which had a larger size and appeared earlier ; its scapes presented a smaller number of vascular bundles with smaller diameters ( 3 ) " longxianhuosuan " had polygonal cells in its scape pith with their intercellular space occupying a small proportion while " gailiangsuan " showed elliptical cells in its scape pith with their intercellular space occupying a high proportion
結果表明： （ 1 ） 「隴縣火蒜」比「改良蒜」蒜薹的表皮細胞形狀規則，排列緻密；角質層較薄； （ 2 ） 「隴縣火蒜」比「改良蒜」蒜薹表面的氣孔數量少，但開張度大；分泌細胞出現早、體積大、數量多；維管束數量少、直徑小； （ 3 ） 「隴縣火蒜」蒜薹髓細胞衛多邊形，髓細胞間隙率小，而「改良蒜」蒜薹的髓細胞呈橢圓形，髓細胞間隙率大。Results : cartilage endplate in normal control group show lots of oval cartilage cells of normal structure, little cartilage cells of denaturation and compactness and regularity of collagen arrangement, and in the model group show lots of cartilage cells of denaturation and contraction, little cartilage cells of solution, loosing and irregularity of collagens arrangement and solution of lots of collagens
結果：正常對照組中軟骨終板顯示大量呈橢圓形的正常軟骨細胞結構，空泡變性細胞少見，膠原纖維排列緊密整齊；模型組中軟骨終板顯示空泡變性軟骨細胞數目增多，出現大量固縮軟骨細胞，甚至溶解消失，膠原纖維排列極不規整，甚為鬆散，出現大量膠原溶解。This paper analyzes the non - symmetry of elliptic polarization oftwo linear polarized beams, which are perpendicular to each other, caused by their reflecting from a metal mirror. also, it studies the non - linear error created by polarization and how the errors change. the study is very important for improving the measuring accuracy of polarized heterodyne interferometer
主要分析兩束相互垂直的線偏振光經過金屬反射鏡反射后引起的橢圓偏振化的不對稱性，並研究由此產生的非線性誤差的變化規律，這對提高偏振光外差干涉儀的測量精度是極為重要的。Abstract : this paper analyzes the non - symmetry of elliptic polarization oftwo linear polarized beams, which are perpendicular to each other, caused by their reflecting from a metal mirror. also, it studies the non - linear error created by polarization and how the errors change. the study is very important for improving the measuring accuracy of polarized heterodyne interferometer
文摘:主要分析兩束相互垂直的線偏振光經過金屬反射鏡反射后引起的橢圓偏振化的不對稱性，並研究由此產生的非線性誤差的變化規律，這對提高偏振光外差干涉儀的測量精度是極為重要的。Ecc can provide high security. under the same security level, ecc has smaller key and lesser consurne ( computation, memory, bandwith and power needed ), so it is ideal in constrained systems. in this paper, the author primarily introduce elliptic curve cryptosystems
橢圓曲線密碼體制不但可以實現高度安全性，而且在同等安全強度下，橢圓曲線密碼體制具有較短的密鑰長度和較小的開銷（所需的計算量、存儲量、帶寬、軟體和硬體實現的規模等） ，因而，橢圓曲線密碼體制在受限環境中是理想的選擇。Using the regularized greens functions and a duality argument, it is proved that the mixed finite element method proposed in this paper possesses the superconvergence by almost one order maximum norm estimates for the l2 projection of the function and quasi - optimal maximum norm estimates for the associated vector function for a strongly nonlinear second order elliptic problem
本文利用正規格林函數及對偶論證技術證明了一類強非線性二階橢圓問題混合元方法對函數的l2投影具有幾乎超收斂一階的最大模誤差估計，對伴隨向量函數具有擬最優最大模誤差估計分享友人