With the development of artificial intelligence,the genetic algorithm has been widely used in many fields.In cryptography,the authors find it is natural to code an individual and design its fitness in a genetic algori...With the development of artificial intelligence,the genetic algorithm has been widely used in many fields.In cryptography,the authors find it is natural to code an individual and design its fitness in a genetic algorithm for a straightforward guess and determine analysis(SGDA,in short).Based on this observation,the authors propose an SGDA based on genetic algorithm.Comparing it with the other three SGDAs based on exhaustive search,MILP method and CPP method respectively,the authors illustrate its effectiveness by three stream ciphers:Small scale SNOW 2.0,medium scale Enocoro-128v2 and large scale Trivium.The results show our method is significantly superior to them,especially for Trivium,the method can find a solution of 165 variables in less than one hour,while the other three methods are not applicable due to its enormous search space of size 2^(619.37).As far as we know,it is a best solution in an SGDA for Trivium so far.展开更多
The present paper is addressed to the finite element method combined with dynamic photoelastic analysis of propagating cracks, that is, on the basis of [1] by Chien Wei-zang, finite elements which incorporate the prop...The present paper is addressed to the finite element method combined with dynamic photoelastic analysis of propagating cracks, that is, on the basis of [1] by Chien Wei-zang, finite elements which incorporate the propagating crack-tip singularity intrinsic to two-dimensional elasticity are employed. THe relation between crack opening length and time step obtained from dynamic photoelaslie analysis is used as a definite condition for solving the dynamic equations and simulating the crack propagations as well As an example, the impact response of dynamie-bending-test specimen is investigated and the dynamic stress-intensity factor obtained from the mentioned finite element analysis and dynamic photoelasticity is in reasonable agreement with each other.展开更多
A research on the application of a TG-DTA(thermal gravimetry aifferential thermal analysis)to the quick determination of moisture,organic volatile fixed carbon,ash and caloric value for coal is described.
Sulfur dioxide has been found to decrease the chemiluminescence of luminol-iodine system.A new determination method for sulfur dioxide in atmosphere is developed by applying this reaction to a flow injection gas diffu...Sulfur dioxide has been found to decrease the chemiluminescence of luminol-iodine system.A new determination method for sulfur dioxide in atmosphere is developed by applying this reaction to a flow injection gas diffusion separation system.This permits the determination of sulfur dioxide selectively and rapidly.展开更多
Machine intelligence,is out of the system by the artificial intelligence shown.It is usually achieved by the average computer intelligence.Rough sets and Information Granules in uncertainty management and soft computi...Machine intelligence,is out of the system by the artificial intelligence shown.It is usually achieved by the average computer intelligence.Rough sets and Information Granules in uncertainty management and soft computing and granular computing is widely used in many fields,such as in protein sequence analysis and biobasis determination,TSM and Web service classification Etc.展开更多
20162424 Chen Shengrong(Faculty of Materials Science and Chemistry,China University of Geosciences(Wuhan),Wuhan 430074,China);Shuai Qin Analysis of the Pore Structure of Shale in Ordos Basin by SEM with Nitrogen Gas A...20162424 Chen Shengrong(Faculty of Materials Science and Chemistry,China University of Geosciences(Wuhan),Wuhan 430074,China);Shuai Qin Analysis of the Pore Structure of Shale in Ordos Basin by SEM with Nitrogen Gas Adsorption-Desorption(Rock and Mineral Analysis,ISSN0254-5357,CN11-2131/TD,34(6),2015,p.636-642,5illus.,1table,27refs.)展开更多
20161631 Cao Lifeng(Henan Province Rock and Mineral Testing Center,Zhengzhou450012,China);Wang Minjie Determination of Cu,Pb,Zn,W and Mo in Deep-Penetrating Geochemical Samples of the Luanchuan Ore Concentrated Distri...20161631 Cao Lifeng(Henan Province Rock and Mineral Testing Center,Zhengzhou450012,China);Wang Minjie Determination of Cu,Pb,Zn,W and Mo in Deep-Penetrating Geochemical Samples of the Luanchuan Ore Concentrated District by ICP-MS with Extraction Elements of Mobile Forms(Rock and Mineral Analysis,ISSN0254-5357,CN11-2131/展开更多
基金supported by the National Key Research and Development Project under Grant No.2018YFA0704705,2016YFB0800401the National Natural Science Foundation under Grant No.61972297。
文摘With the development of artificial intelligence,the genetic algorithm has been widely used in many fields.In cryptography,the authors find it is natural to code an individual and design its fitness in a genetic algorithm for a straightforward guess and determine analysis(SGDA,in short).Based on this observation,the authors propose an SGDA based on genetic algorithm.Comparing it with the other three SGDAs based on exhaustive search,MILP method and CPP method respectively,the authors illustrate its effectiveness by three stream ciphers:Small scale SNOW 2.0,medium scale Enocoro-128v2 and large scale Trivium.The results show our method is significantly superior to them,especially for Trivium,the method can find a solution of 165 variables in less than one hour,while the other three methods are not applicable due to its enormous search space of size 2^(619.37).As far as we know,it is a best solution in an SGDA for Trivium so far.
文摘The present paper is addressed to the finite element method combined with dynamic photoelastic analysis of propagating cracks, that is, on the basis of [1] by Chien Wei-zang, finite elements which incorporate the propagating crack-tip singularity intrinsic to two-dimensional elasticity are employed. THe relation between crack opening length and time step obtained from dynamic photoelaslie analysis is used as a definite condition for solving the dynamic equations and simulating the crack propagations as well As an example, the impact response of dynamie-bending-test specimen is investigated and the dynamic stress-intensity factor obtained from the mentioned finite element analysis and dynamic photoelasticity is in reasonable agreement with each other.
文摘A research on the application of a TG-DTA(thermal gravimetry aifferential thermal analysis)to the quick determination of moisture,organic volatile fixed carbon,ash and caloric value for coal is described.
文摘Sulfur dioxide has been found to decrease the chemiluminescence of luminol-iodine system.A new determination method for sulfur dioxide in atmosphere is developed by applying this reaction to a flow injection gas diffusion separation system.This permits the determination of sulfur dioxide selectively and rapidly.
文摘Machine intelligence,is out of the system by the artificial intelligence shown.It is usually achieved by the average computer intelligence.Rough sets and Information Granules in uncertainty management and soft computing and granular computing is widely used in many fields,such as in protein sequence analysis and biobasis determination,TSM and Web service classification Etc.
文摘20162424 Chen Shengrong(Faculty of Materials Science and Chemistry,China University of Geosciences(Wuhan),Wuhan 430074,China);Shuai Qin Analysis of the Pore Structure of Shale in Ordos Basin by SEM with Nitrogen Gas Adsorption-Desorption(Rock and Mineral Analysis,ISSN0254-5357,CN11-2131/TD,34(6),2015,p.636-642,5illus.,1table,27refs.)
文摘20161631 Cao Lifeng(Henan Province Rock and Mineral Testing Center,Zhengzhou450012,China);Wang Minjie Determination of Cu,Pb,Zn,W and Mo in Deep-Penetrating Geochemical Samples of the Luanchuan Ore Concentrated District by ICP-MS with Extraction Elements of Mobile Forms(Rock and Mineral Analysis,ISSN0254-5357,CN11-2131/
