整體曲線論 的英文怎麼說

中文拼音 [zhěngxiànlún]
整體曲線論 英文
global theory of curves
  • : Ⅰ形容詞1 (全部在內; 完整) whole; all; complete 2 (整齊) neat; tidy; orderly Ⅱ動詞1 (整理; 整...
  • : 體構詞成分。
  • : 曲名詞1 (一種韻文形式) qu a type of verse for singing which emerged in the southern song and ji...
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • : 論名詞(記錄孔子及其門徒的言行的「論語」) the analects of confucius
  • 整體 : ensemble; whole; entirety
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  1. In this article the authors consider canchy problem for quasilinear hyperbolic systems in 3 - step completely reducible type, and the global smooth resolvability is obtained

    摘要本文對三步完全可化約擬性雙型方程組的經典解進行討,得到了經典解的存在性。
  2. In this thesis, four types of steel beam - rectangular cfst column connections, including normal welded flange plate ( wfp ) connection, bolted flange plate ( bfp ) connection, stiffened end plate ( sep ) connection and double split - tee plate ( dst ) connection, were designed based on the configuration of steel frame connection. total 8 models, 2 models of each kind of connections were tested under low - reversed cyclic loading at the end of cfst columns. the relationships between force and displacement at the end of columns, the relationships between the moment and rotation of the joints, degradations of strength and stiffness, ductility, failure mechanism and failure characteristics of these four connections under different axial - compression ratios were presented

    本文借鑒鋼框架節點構造,設計了四種類型矩形鋼管混凝土柱與鋼梁連接節點,包括常規栓焊( wfp )節點、翼緣全螺栓連接( bfp )節點、雙t板連接( dst )節點以及加勁端板連接( sep )節點,進行了四類節點8個模型試件在柱端低周反復荷載作用下的抗震性能試驗研究,比較了不同軸壓比下節點的滯回性能、強度與剛度退化、延性、破壞機理與破壞特徵,主要結有: 1 、節點的位移滯回與轉角滯回為塊型分佈,沒有或略有捏攏現象,耗能能力強; 2 、軸壓比對節點滯回有顯著影響,全部節點都有顯著的剛度退化; 3 、位移與轉角骨架在峰值荷載後有較長的水平或下降段,具有良好的延性性能; 4 、從抗震性能上看,翼緣全螺栓連接節點、雙t板連接與加勁端板連接節點都優于常規栓焊節點,可在實際工程中加以推廣。
  3. 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密碼制的優點及研究現狀;其次研究了橢圓密碼制的基本理;第三,分析了橢圓密碼的安全性並介紹了密鑰共享,加密,數字簽名等橢圓密碼制;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,所得的結可供在實現橢圓密碼制時參考;第五,研究了目前流行的計算橢圓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的橢圓密碼制的演算法庫,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等橢圓密碼制;第七,實現了兩條安全橢圓上的橢圓密碼制,包括ecdh , eces , ecdsa 。
  4. It contributes to the deeper comprehesion of these probability distributions, affords more detailed theoretical basis for further studying and simulating satellite mobile channels, ? theoretical analyses and discussions of the models which are often used in the study of the propagating characteristics of satallite mobile channels are given ; meantime, some discussions on the work of model simulations are also given, ? incorrect derivation of the equality between c. loo model and corazza model in some other papers is pointed out. via the conception of received power, we derivate that in the rural environments these two models really have the equal relationship by the way of theoretical derivation and simulatant fittings. therefore, it is able to use corazza model in studying the characteristics of satellite mobile channels in the rural environments and able to avoid the iterant work of modeling, in order to enhance the efficiency and accuracy of research work, ? detailed processes of simulating lutz model by using matlab6. 0 _ simulink4. 0 and the results of comparisions are given

    本文包含有以下的主要內容: ?對衛星移動通信通道傳播特性研究中常用的三個概率分佈給出了詳細的推導過程;以便對這幾個在衛星移動通信通道傳播特性的研究中常用的概率分佈函數有更深的理解,對進一步研究衛星移動通信通道傳播特性和對通道的建模提供了更為詳盡的理基礎; ?對衛星移動通信通道傳播特性的研究中常用的通道模型進行了理上的分析和討,並對衛星移動通信通道建模的研究工作提出了一定的看法; ?指出了以前的文獻中關于c . loo模型和corazza模型的等同性的證明錯誤;並從接收信號功率的角度出發,通過理推導及模擬擬合重新證明了在鄉村環境下,這兩個模型的確是具有等同性的;從而在對鄉村環境下的衛星移動通信通道傳播特性進行研究時,可以只採用corazza模型來對實際的通道進行建模,這樣可以避免重復的建模工作並提高研究工作的效率和準確性; ?給出了lutz模型在matlab6 . 0 _ simulink4 . 0環境下的軟模擬實現的詳細過程和模擬測試的對比結果,保證了該模型在硬實現時的可靠性和可行性,從而可以將它們應用於指導模型的硬模擬實現並可以降低硬實現時的風險。
  5. By low - cycle and reverse horizontal loading test, their properties including strength property, deformation property and energy property are studied. we study the loading characteristic values ; the property of hysteretic curve and skeleton - frame curves ; the ductility property and stiffness degradation. lastly, based the data got from the test, this paper analyses and value the seismic behavior of every members

    在試驗基礎上,研究了軸心受壓構件的承載力計算和穩定問題;研究了低周反復水平加載條件下,彎剪構件和空心墻板的強度、變形、能量特性;軸壓構件的荷載特徵值;彎剪構件和空心墻板的滯回、骨架、延性等參數;從強度、變形和能耗等方面判別和鑒定各構件的抗震性能,對各個構件給出了試驗的結、評價。
  6. A model is erected for fs with logarithmic spiral sliding surface which can simulate the genuine sliding surface better than others, then the express of fs is deduced based on the upper bound theorem of limit analisis

    採用對實際滑裂面模擬較好的對數螺旋滑裂面,建立了穩定安全系數f _ c的模型,從極限分析中的上限理推導了穩定安全系數f _ c的表達式。
  7. Secondly, to achieve the independent regulation of active and reactive power output from the generator side which is designed for the purpose of tracing the maximum wind - energy capturing. the paper has analyzed the mathematic model of the ac excited doubly - fed machine and the stator field orientation control strategy of the motor as vscf wind power generator. thirdly, it has put forward and designed the dual pwm converter with the capacity of energy flowing bidirectional aimed at the demand of rotor energy bidirectional flow. the author constructed reliable and integrated experimental system and did a series of experimental study including no - load, cutting - in network and power generation at, below and above the synchronous speed

    文首先分析了風機運行特性及其最佳風能利用原理,通過模擬及實驗驗證了採用直流電機的輸出特性模擬風力機的最大輸出功率的可行性,並給出了模擬系統的硬結構;然後為了實現交流勵磁發電機有功、無功功率獨立調節機理,分析了交流勵磁雙饋發電機的數學模型和在追蹤最大風能捕獲變速恆頻風力發電時必需的定子磁鏈定向矢量控制策略;針對雙饋發電機轉子能量雙向流動的要求,提出並設計了具有能量雙向流動能力的雙pwm交流勵磁用變頻器;最後為實現從理到實踐的全面研究,研製出了一套小功率完的雙pwm變頻器交流勵磁的雙饋風力發電機實驗系統,進行了空載、並網、同步速及上、下的發電運行等一系列的運行實驗;所完成的模擬和實驗研究均驗證了理、模型和控制策略的正確性、可行性。
  8. In practice, it ’ s very hard to find any ideal scatter points to track, so this thesis focuses on the motion compensation algorithm base on motion parameters estimation, which is used in r - d fft imaging algorithm and verified by simulation. work of this thesis contains : first analyze the signal - processing model of isar system in detail, and establish a 3 - dimensional mathematical scattering model of moving target. then some improvements are made on existing compensation algorithm, to get a higher image quality and reduce compute burden

    文有以下幾點創新: 1 .在距離向的補償(包絡對齊)方面,採用基準相關法代替相鄰相關法或積累相關法,一定程度上解決了可能出現的包絡漂移和包絡突跳現象;根據目標運動軌跡特點,採用二次擬合的方法,將包絡對齊時的局部誤差轉化為全局的誤差,以便實現較優的對齊效果。
  9. Based on these foundations, we give a perfect scheme of the bbo opos : single pass amplification coefficient of the opg under different pump intensity is calculated ; collinear type - i and type - ii phase matching tuning curve pumped by the q switch nd : yag various harmonics as well as noncollinear type - i tuning curve are calculated in details ; the effect of the walkoff for the nonlinear effect coefficient and the group velocity matching are analyzed ; the acceptance angle in parametric process is calculated ; the numerical threshold of the bbo opo is calculated ; the process of the saturation and depletion of the pump beam are analyzed ; the relationship of the conversion efficiency and reflectance of output mirror are discussed ; various linewidth controlling methods are discussed ; the improvement of the beam quality applying the unstable cavity is discussed ; and the crystal bbo design is considered

    在此基礎上,給出了一套bbo - opo激光參數設計方案:計算了不同泵浦強度下的參量放大倍數;詳細計算了在nd : yag調q激光器各次諧波泵浦條件下的共類和類相位匹配的調諧,以及非共類相位匹配調諧;分析了走離角對非性系數和群速匹配的影響;計算了參量過程的允許角;計算了bbo - opo的理閾值條件;分析了飽和與泵浦光束的消耗過程;給出了轉換效率與超過泵浦閾值的倍數的關系;討了轉換效率與輸出鏡反射率的關系;討寬控制的各種方法;研究了利用非穩腔改善光束質量的方法;考慮了bbo晶的設計。
  10. The great tour purchasing power is the drive power of promoting the region ' s tourism developmentln the regional space, scale economic and regional separation are one of the basic characteristics of promoting tourism industry, so we must arrange the regional tourism industry with a systematic method and give prominence to the central city. for its outstanding area in the regional space, central city has evident superiority in the regional ecnomic development, and has echelon between central city and its periphery scennic spots, which is the inducement mechanism of tourism industry ' s arranging, developing and advancing step by step. for the law of diminishing marginal utility and the theory of equilibrium, the max utility equilibrium of tourism consumption be at the point of tangency of undiscrepancy curve and the cost budget curve

    中心城市居民巨大的出遊力是拉動其周邊旅遊地發展重要的內在驅動力;由於地緣關系,區域規模經濟與地域分割並存,是旅遊產業運動的一個基本特徵,為此必須對區域旅遊經濟進行系統化布局,突出中心城市的產業中心性;因其區位條件獨特,中心城市在區域經濟發展中居於明顯的優勢,與周邊城鄉部位存在經濟發展上的梯次性,這種梯次性是區域旅遊生產力布局、產業發展梯次傳動,最終聯動的經濟誘導機制;根據邊際效用遞減規律和旅遊者最大效用均衡理,旅遊消費效用最大化的均衡在無差異與開支預算的切點(即旅遊目的地選擇的最佳位置)上,且隨著邊際效用遞減,目的地選擇的最佳位置向遠離中心城市方向移動,這就是中心城市與周邊旅遊地互動關系的經濟學解釋。
  11. Then, a step - by - step increase of vertical curvature is applied to the hull girder assuming that the plane cross section remains plane. at each incremental step, the stress of the cross section is evaluated using the average stress - strain curves of the elements as well as the incremental bending moment due to the curvature increment. performing sample calculations on existing girder models tests under pure bending, the rationality of the proposed method was examined

    假設船橫向框架材足夠強,因而板架的破壞不會發生;基於梁?柱理、理想彈塑性假設、平面假設,建立了拉伸和壓縮加筋板單元的平均應力?應變關系,應用船結構總縱極限強度的簡化逐步破壞分析方法計算船總縱極限彎矩,並據此開發了計算程序sus 。
  12. Then the general plan of underwater vibrators is put forward. in chapter 3, combining fluid - solid coupling theory and mechanical vibration theory, we get the coupling equation of moving parts and water. the dynamic characteristics of moving parts are studied with theory of finite element, and additional mass of moving parts is found in fluid - solid coupling field, which makes vibrator ' s natural frequency descend and amplitude - frequency curve downward shift

    第三章運用流固耦合理和機械振動學理相結合的方法建立運動部件與水的耦合運動方程,利用有限元法對其的動態特性進行了研究,得到了在流固耦合場下運動部件存在的附加質量,該附加質量導致固有頻率下降,單位推力下的加速度頻響下移。
  13. The paper has five sections include the basic knowledge and the experiment research, systematically analyses the impact of the liquid crystal box ' s position angle on the measuring result of liquid crystal lyot filter and the practical significance of this work. the work of this paper maily includes five sections : ( 1 ) the related theory of the crystal birefringence is systemicly introduced in this paper ; ( 2 ) the theory of the lc voltage - dependent birefringence is introduced ; ( 3 ) no voltage applied, changing curve between the transmission and the liquid crystal box direction is got from experiment ; ( 4 ) voltage applied, changing curve between the transmission and the liquid crystal box direction is got from experiment ; ( 5 ) desired wavelength is extract from changing the direction of liquid box. originality innovation of this paper is that the theory of the lc voltage - dependent birefringence is systemically introduced in this paper especially those related to voltage and direction

    本文主要完成以下幾方面工作: ( 1 )比較系統地理了晶雙折射的有關理; ( 2 )簡單介紹了液晶的電控雙折射特性; o )在未加電壓情況下,研究液晶盒方位角對濾光片透過率的影響;廠)在加交流電壓的情況下,研究液晶盒方位角對濾光片透過率的影響; ( 5 )利用方位角的調來提取特定波長的譜;本文的創新之處在於比較系統地理了晶雙折射的有關理,特別是與電壓及方向有關的理,實驗得出了濾光片透過率隨液晶盒方位角變化的關系,並將之運用於v吸器波長的話
  14. Finally, considering the problem which the cipher ' s secure level is not easy to be changed in the existing elliptic curve digital signature field - arithmetic algorithms, we express a large number as the structure data type and design a field - arithmetic algorithm in elliptic curve cryptography for different cipher security

    第四是針對現廣西大學碩士學位文一基於橢圓密碼制的多重數字簽名技術研究有的橢圓密碼制密碼域算術算潔在實現上強度不易擴展的問題,我們將大數用結構數據類型表示,設計適合不同橢圓密碼強度的域算術算潔。
  15. Third, this paper introduce the security structure, security system and algorithm of the 3g system, discussing the security measure of 3g system in the aspect of wireless interface in detail, which including user identity confide ntiality, authentication integrality data, etc. finally, the author stress analyzing the 3g authentication, key agreement protocol and its security, finding the security hole and putting forward new authentication and key agreement protocol based on ecc

    介紹了第三代移動通信系統安全結構、安全制和演算法,詳細述了3g系統在無介面方面的各種安全措施包括用戶身份保密、認證與數據完性等內容。重點分析了3g認證與密鑰分配協議及其安全性,找出了其中的安全漏洞,提出了新的基於橢圓密碼制的認證與密鑰分配協議。
  16. When there is original stage support only, the load ratio of surrounding rock gets more and more bigger with the increasing of crust stress, correspondingly, the load ratio of initial stage support gets smaller. when the initial stage support and the second support act each other, the load ratio of surrounding rock is more than fifty percent, and it has little change with the increasing of crust stress. the whole analysis of the surrounding rock and support shows that the bottom arch of liner and the feet of liner have serious stress concentration, so do the sidewalls and the foot of a wall of the surrounding rock

    通過屈分析結果對比表明,彈性屈和突變失穩分析的結果比非性屈分析的結果要大得多,非性分析由於考慮了材料非性和幾何非性,因而結果與實際接近實際;當只有初期支護時,隨著地應力的增加,圍巖的荷載分擔率增大,相應地,初期支護的荷載分擔率就減小了;當有初期支護和二次襯砌共同作用時,圍巖的荷載分擔率在50以上,這一分擔率隨地應力的增加其變化不大;支護和巖分析表明,襯砌底拱及拱腳處應力集中嚴重,隧道巖側墻及墻角圍巖的應力集中也較大。
  17. Due to the existing volatility, stochastic and dynamic properties of cash flow, this paper employs exponential smoothing method and moving average method to eliminate the effects of the stochastic factors, use the seasonal exponent to eliminate the seasonal volatility of the cash flow, the exponent curve and polynomial fitting curve to estimate the overall cash flow and also provides the calculating methods and identifying principle of the overall cash flow

    由於現金流量的波動性、隨機性、動態性等特性的存在,依靠單一方法無法科學、準確的預測現金流量。文提出利用指數平滑和移動平滑的方法來剔除隨機因素影響,利用季節指數來消除現金流量的季節波動,之後再利用指數或者多項式擬合來預測現金流量的方法,並給出了現金流量的計算方法和確定原理。
  18. According to the module of the consolidation settlement curves and their characteristic relations, we design the simulation system of the large test platform, this paper introduce the whole design thought of the test platform, and emphasis on the analysis design of the critical segment in the design procedure

    根據以上得出的固結沉降形式及其特徵關系,進行了大型沉降模擬試驗系統的研製工作。本文主要闡述了試驗系統的總研製思路,重點討了研製過程中關鍵壞節的技術設計,並對試驗系統的沉降模擬適應性進行了理分析,確定了研製方案的可行性。
  19. The paper studies the smoothness and fairness of nurbs curves and surfaces, gives a practical and efficient global fairing method of nurbs curves, then introduces the criterion of minimum energy to deal with the smoothness of nurbs surfaces

    了nurbs面的光順問題。提出了一種實用、有效的光順方法,引入薄板應變能準則對nurbs面進行光順。
  20. This paper mainly discusses rational blossoming in computer aided geometry design. specifically, we apply the fact that the binomial theorem is valid for negative integer and fractional exponents, introduce the rational bernstein bases and fractional bernstein bases, discuss the properties of rb curves and poisson curves, give the rational blossom and analytic blossom

    本文主要討了cagd中的有理blossoming方法,具來說,利用指數為負數、分數的二項式定理,引入了負n次bernstein基函數、分數次bernstein基函數,討了rb、 poisson的性質,並且介紹了有理blossom與解析blossom
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