discrete problem 中文意思是什麼
discrete problem
解釋
離散問題-
A new type signature of knowledge - - a signature of knowledge of the discrete logarithm of a blinded representation, which provides the verifier trusts the prover has the knowledge of the discrete logarithm when the knowledge is unknown, is proposed. the new signature of knowledge is necessary for the solution of the problem of member deletion in group signature ; 2
提出了一種新類型的知識簽名? ?盲化表述的離散對數根的知識簽名，使得驗證者對含有知識（離散對數根）的表述未知的情況下，有理由相信證明者具有離散對數根的知識，給出了一種更間接的證明知識的方法。 -
Also, with the fast method for computing the, trace of the elements in the finite field, two blind signature schemes based on extended xtr system are presented, the security is equivalent to solving discrete logarithm problem of extended xtr group while the datum is only as 1 / 3 as that of the previous schemes
和別的方案相比，該方案在匿名范圍選取上具有靈活性，在身份追蹤上具有限制性。 （ 4 ）在xtr體制下，分別構造了一個環簽名、盲簽名和群盲簽名演算法。 -
A discrete event system approach for solving the ground holding problem
多元受限空中交通流量管理決策支持系統 -
The security of elliptic curve cryptography ( ecc ) depends on the intractability of the elliptic curve analogue of the discrete logarithm problem. ecc has gained increasing popularity in public key cryptography, because of its computation and storage
橢圓曲線密碼是基於橢圓曲線離散對數難題的一種密碼體制，由於它在運算量和安全性方面的優勢，是目前最具有廣泛應用前景的一種公鑰密碼體制，近幾年一直是人們的研究熱點。 -
Firstly, by means of the intractability of discrete logarithm problem, a threshold secret sharing scheme with periodic renewing to identify cheaters is established. shares are periodically renewed without changing the secret. every participant is able to verify the share he receives and those other participants show
首先，利用離散對數問題的難解性，給出了一個定期更新防欺詐的門限秘密共享方案，它在保持共享秘密不變的情況下定期對子秘密進行更新，每個參與者可以對自己的子秘密及其他成員出示的子秘密進行驗證，不但能有效阻止敵手竊取秘密或子秘密，也能有效地防止內部成員之間的互相欺詐。 -
Abstract : this paper considers the decentralized stabilization problem via local state feedback control laws for a class of large - scale linear discrete - time systems with delay interconnections. a sufficient condition for decentralized stabilizability is derived and is expressed as a system of linear matrix inequalities. furthermore, the problem of designing a decentralized state feedback control law with smaller feedback gain parameters is formulated as a convex optimization problem, and latter can be solved by using existing efficient convex optimization techniques. the obtained controller enables the closed - loop systems to be not only stable, but also of any prescribed stability degree
文摘:用一組線性矩陣不等式給出一類線性離散時滯大系統分散能鎮定的一個充分條件，進而，通過建立和求解一個凸優化問題，提出了具有較小反饋增益參數的分散穩定化狀態反饋控制律的設計方法.所得到的控制器不僅使得閉環系統是穩定的，而且還可以使得閉環系統狀態具有給定的衰減度 -
This text aims to establish mathematics model, everyday randomicity variable to be set up by the discrete transformation method, to set up the simulation parameter form and the moleling and covariance form, draw the procedure flow chart to proceed simulative newspaper calculator problem
摘要通過建立數學模型、運用離散反變換法產生每天賣報數隨機變量、建立模擬參量表和建模及統計變量表、畫出程序流程圖等步驟對報童問題進行模擬。 -
Discrete particle swarm algorithm for the rectangular strip packing problem
離散粒子群優化演算法求解矩形件排樣問題 -
Based on the genetic algorithm ' s global searching capability with probability regulation and euclid ' s space distance metric to settle multi - objective, the algorithm that integrates multi - objective ' s decision - making into the modified genetic algorithm to solute the optimal model with discrete variables and multi - objective is proposed. during the algorithm ' s design, the euclid ' s space distance metric is proposed to transform the multi - objective problem into single objective problem. and some modified measure to fitness function and crossover probability and mutation probability are used to improve the performance of the algorithm and avoid premature convergence
演算法設計過程中，利用歐幾里德空間距離準則和罰函數法，將含有約束條件的多目標規劃問題轉化為無約束的單目標優化問題；針對簡單遺傳演算法出現的早熟，構造隨進化代數動態調整適應度的適應度函數和隨個體適應度自適應調整的交叉、變異概率；提出比例選擇與精英保留策略相結合的選擇、兩點交叉和簡單變異的改進遺傳演算法。 -
Fem with absorbing boundary condition and expansion of discrete chebyshev polynomials for inverse problem of elastic waves
基於吸收邊界條件的有限元方法和離散切比雪夫展開的二維缺陷識別 -
In this dissertation, the numerical computation for the acoustic radiation problem ( arp ) is studied deeply and systematically in the theory, method and the application technique, based on analyzing the situation of the home and abroad on the numerical computation for the acoustic radiation problem. the calculation formulas of the boundary element method ( bem ) for the exterior acoustic radiation problem in the full - space and half - space are deduced, based on the wave propagation theorem ; the arising of the non - unique solutions, which is associated with the application of the boundary integral equation ( bie ) in acoustic radiation problem, is analyzed and proofed ; the improved combined helmholtz integral equation formulation ( ichief ) is presented to overcome the non - uniqueness problem more effectively and reliably ; the determination of the singular integral coefficients on various occasions is analyzed ; the properties and treatments of the singular integrals with different orders axe studied ; the computation program of the cubic spline ichief is developed and its ability to overcome the non - uniqueness problem and feasibility to discrete the surface coarsely with the sufficient calculation precision are examined through examples
第二章在聲波動理論基礎上，詳細地推導出對應于無限域和半無限域的外部振動聲輻射問題的邊界積分方程計算公式；根據fredholm積分理論，對利用邊界積分方程計算振動聲輻射問題過程中解的非唯一性的產生進行了分析和證明；改進了chief法以提高其克服解的非唯一性的有效性和可靠性；對不同條件下奇性系數的計算、強奇性積分的收斂性及其在變量替換時與普通積分的差異性、不同階奇性積分的計算、數值求積分等進行了研究；開發了三次樣條改進chief法計算軟體，並通過算例考核了該方法在特徵波數處克服解的非唯一性的有效性和在保證計算精度的前提下實現剖分粗化以提高計算效率的可行性。 -
Based on the optimal operation problem of flood control for multi - reservoir such as jiangya, zaoshi and yichongqiao reservoirs on the lishui river, a hierarchical model for optimal flood dispatching of multi - reservoir system, which includes a flood routing model and a discrete differential dynamic program model for the optimal flood dispatching of reservoir sub - system, is established : then a new decomposition - coordination algorithm is put forward
摘要以澧水流域中上游的江埡、皂市及宜沖橋三庫聯合防洪優化調度問題為背景，建立了河道洪水演進方程與離散微分動態規劃相結合的水庫群防洪優化調度模型，提出了一種離散微分動態規劃與馬氏京根洪水演進相結合的大系統分解協調演算法。 -
The paper establishes mathematics model of electromagnetic heating system of eddy current field and temperature field, and gives corresponding discrete format with elements as eight nodes, hexahedron equal cell, through calculating eddy - current field to gain the internal heat source that the temperature field needed, to use discrete method to solve the problem of induction - heating part ' s temperature field by axial symmetrical electromagnetic, and then to analyze the characteristic of instantaneous temperature field
本文建立了電磁加熱系統的渦流場和溫度場間接耦合的數學模型，分析了不同頻率下渦流和溫度的分佈情況，並以八節點六面體等參元為例給出了渦流場對應的離散格式，通過計算渦流場獲得溫度場所需要的內熱源強度，加熱部件的溫度場以軸對稱格式進行離散求解，並對瞬態溫度場有限單元法的求解特點進行了分析。 -
Thus the areas of the overlapping regions are compensated efficiently and the accuracy of measurement is highly improved. the volume of the bubbles can be estimated on the bubbles " area information, and a genetic algorithm ( ga ) based method is used to match and track bubbles in the image sequences, which solve tracking problem under complex conditions efficiently, such as some bubbles may have kinetic occlusion and crossover, some newly generated bubbles may entered into flow field and run away. a smooth kinetic locus is obtained by fitting the discrete centroids with a cubic spline function and at the same time the visual measurement is realized
根據氣泡在圖像平面中的面積估計氣泡的體積，並對流場中的所有氣泡採用遺傳演算法進行最佳的匹配跟蹤，有效地解決了氣泡群在流場中出現如遮擋、交又、新它『出現、逃逸等復雜情況下的準確跟蹤，並採用三次樣條插值方法對離散的質心點軌跡進行擬合，得到氣泡在流場中平滑的運動軌跡，從而實現了摻氣水流特性的可視化測童。 -
( 3 ) reactive power optimal of radial network is a very complex nonlinear discrete optimal problem. to ensure the speediness, feasibility and optimality, evolution algorithm is improved by combination with interior point sequence linear optimal algorithm and principle of var balance. the improved algorithm is applied to the reactive power optimization and achieves distinct effect
（ 3 ）配網網路無功優化是一個非常復雜的非線性離散優化問題，為了保證計算結果的快速性、可行性和最優性，本文結合內點法的逐次線性優化方法，以及配網電壓調節的特點，對模擬進化優化方法進行了改進，並將該演算法應用於配網無功優化問題的求解，取得了顯著的效果。 -
( 2 ) reactive power optimal of hv network is a very complex nonlinear discrete optimal problem. to ensure the speediness, feasibility and optimality, evolution algorithm is improved by combination with interior point sequence linear optimal algorithm and expert knowledge of voltage / var adjustment. the improved algorithm is applied to the reactive power optimization and achieves distinct effect
（ 2 ）高壓網路無功優化是一個非常復雜的非線性離散優化問題，為了保證計算結果的快速性、可行性和最優性，本文結合內點法的逐次線性優化方法，以及電壓無功調節的專家經驗，對模擬進化優化方法進行了改進，並將該演算法應用於無功優化問題的求解，取得了顯著的效果。 -
The security of the elliptic curve cryptography is built upon the difficulty of solving the elliptic curve discrete problem
橢圓曲線密碼系統的安全性建立在橢圓曲線離散對數問題的難解性上。 -
The difficulties of elliptic curve discrete logarithm problem and safety of 3 - des encryption is analyzed in detail. this cryptographic system applies a key exchange scheme based on ecc and trusty data encryption algorithm
文章最後分析了該密碼系統的安全性，對橢圓曲線離散對數問題的難解性以及三重des加密演算法的安全性作了較詳細的分析。 -
Its security is ensured by the difficulty of elliptic curve ' s discrete logarithm problem by means of the exclusion of supersingle and anomalous elliptic curves and the adoption of a big prime ( more than 160 bits ) for the order of base - point in elliptic curve in this scheme of data encryption
加密方案中沒有使用超奇異橢圓曲線及異常橢圓曲線，橢圓曲線上基點的階為大素數（長度160比特） ，保證了橢圓曲線離散對數問題的難解性，從而最終保證了整個方案的安全性。 -
This method connects the discrete points processed in the level set method to form a smooth curve, thus transforms the discrete problem to continuous one. constraint entry is added to the curve according to the actual demand, and satisfactory result is obtained in experiments. the results show that the algorithm is effective in the actual applications
基於鏈碼的水平集方法把原先水平集方法中處理的離散點，利用鏈碼易於表示曲線的特點，連接成一條光滑的曲線，這樣就把離散問題轉化為連續問題，利用曲線的連續性和光滑性，根據實際問題的需要，對曲線加入外部約束項控制，在實驗中獲得了滿意的結果，在實際應用中達到了預期的效果。
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