查询词典 theoretical

Based on the theoretical study of the operation of auxiliary impeller, the effects of the interdict resistance and the critical operation value are supplemented so as to make the calculation of auxiliary impeller more practical.

通过对副叶轮的工作过程进行理论研究，补充遮断阻力和运行临界值的影响，使副叶轮的计算方式更具实用价值。

Provable Security is a formal method for proving the security of cryptographic schemes, in which the difficulty of breaking a particular scheme is formally related to that of solving a widely believed computational hard problem. Provable security has already become an important theme of theoretical researches in modern cryptography. This dissertation investigates the provable security of public-key encryptions and hybrid encryptions of asymmetric and symmetric encryptions. This includes the various formal security notions and the constructions can be proved to achieve them. Among the constructions, hybrid encryptions are themselves an important way to obtain public-key encryption schemes with chosen ciphertext security. The main results are as follows:(1) The one-wayness of the trapdoor one-way function in NTRU depends on the randomness of the session key, which is different from previous ones. Based on this observation, a new kind of trapdoor one-way function, trapdoor one-way functions with an auxiliary random variable is proposed.

可证明安全性是一种证明密码学方案安全性的形式化方法，它将密码学方案的安全性归约为公认的计算难题，已成为现代密码学领域中理论工作的主线，本文主要研究公钥加密与单双钥混合加密的可证明安全性，这包括它们的各种形式化安全性定义以及达到这些安全性定义的方案构造，而单双钥混合加密本身也是一种构造选择密文安全公钥加密的重要方法，本文得到的主要结果如下：(1)在研究NTRU公钥加密的特殊性基础上，对于公钥加密的陷门单向函数加密模型进行了扩展，提出了具有辅助陷门单向函数的概念，并将其扩展到多元的情况，讨论了可能的密码学用途。

We focuses on the theoretical analysis of avalanche state transition, as well as on the mechanism of hysteresis.

从理论上对雪崩式状态转变及滞回的产生机理作了深入的分析。

This paper presents the modeling with the state space averaging method, and steady state theoretical analyses of the converter.

该文运用状态空间平均法对这种新型拓扑进行建模和稳态理论分析。

Economist studies value is theoretical, its are essential the historical inevitability of the producer type that the purpose is the class that represents for its and place requirement and just sex averment.

经济学家研究价值理论，其根本目的是为其所代表的阶级以及所要求的生产方式的历史必然性和正义性申辩。

The second part, it describes the theoretical basis of the avoidance system of academic evaluation.

第二部分，对学术评价回避制度的理论基础作了具体的阐述。

Base on theoretical analysis, the method for determination of optimum perforated degree of reservoir with bottom water awl gas cap is presented.

根据理论分析，给出了气顶底水油藏最佳打开程度的确定方法。

The velocity distribution of the numerical simulation and the theoretical equations calculation are compared on the condition of axial symmetry.

结果表明，在轴对称条件下，对数模、理论计算的速度分布进行对比分析，证实了旋涡流场不仅是径向的函数，而且还是轴向的函数。

A theoretical analysis is carried out for the load carrying capacity of the axially compressed concrete filled square steel tube.

对方钢管混凝土轴心受压短构件的受力机理进行了理论分析，提出了此类构件承载力计算的基本假定。

Constructionalism Study Theory offers theoretical fundaments for the math education revolution, because that the modern math building itself is built on the basis of modern math fundaments of which the convergence axiomatic system is the representative.

建构主义学习理论为数学教育改革提供了理论基础，因为现代数学的大厦，本身就是在以集合论公理体系为代表的现代数学基础上建构起来的。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。