We investigate the influence of blurred ways on pattern recognition of a Barabasi-Albert scale-free Hopfield neural network （SFHN） with a small amount of errors. Pattern recognition is an important function of infor...We investigate the influence of blurred ways on pattern recognition of a Barabasi-Albert scale-free Hopfield neural network （SFHN） with a small amount of errors. Pattern recognition is an important function of information processing in brain. Due to heterogeneous degree of scale-free network, different blurred ways have different influences on pattern recognition with same errors. Simulation shows that among partial recognition, the larger loading ratio （the number of patterns to average degree P/ （k） ） is, the smaller the overlap of SFHN is. The influence of directed （large） way is largest and the directed （small） way is smallest while random way is intermediate between them. Under the ratio of the numbers of stored patterns to the size of the network PIN is less than O. 1 conditions, there are three families curves of the overlap corresponding to directed （small）, random and directed （large） blurred ways of patterns and these curves are not associated with the size of network and the number of patterns. This phenomenon only occurs in the SFHN. These conclusions are benefit for understanding the relation between neural network structure and brain function.展开更多
The general construction procedure of the steel middle pylon is briefly introduced. The alignment control of the pylon is carried out during the whole process of the construction. The control concept is extended to th...The general construction procedure of the steel middle pylon is briefly introduced. The alignment control of the pylon is carried out during the whole process of the construction. The control concept is extended to the manufacture stage. The manufacturing alignment error is strictly controlled in the segments precast process in factory, and the error is recognized and predicted precisely during the installation stage. The adjusting joints are employed to amend the accumulated error, which ensure that the steel pylon alignment could satisfy the precision requirements after installation.展开更多
The causes and factors from ideological perspectives in intercultural miscommunication are discussed. Intercultural miscommunication can be analyzed from four aspects which are ways of thinking, value system, belief a...The causes and factors from ideological perspectives in intercultural miscommunication are discussed. Intercultural miscommunication can be analyzed from four aspects which are ways of thinking, value system, belief and attitude, and language usage and habits.展开更多
There are some problems related to the titles of academic papers, such as, titles incorresponding to the contents, and titles being too general or colloquial. It is imperative to increase the title quality of an acade...There are some problems related to the titles of academic papers, such as, titles incorresponding to the contents, and titles being too general or colloquial. It is imperative to increase the title quality of an academic paper through peer-review, or by checking grammar mistakes with computer tools. The editors should also aim to improve their academic level of knowledge.展开更多
Dislocations are of great importance in revealing the underlying mechanisms of deformed solid crystals.With the development of computational facilities and technologies,the observations of dislocations at atomic level...Dislocations are of great importance in revealing the underlying mechanisms of deformed solid crystals.With the development of computational facilities and technologies,the observations of dislocations at atomic level through numerical simulations are permitted.Molecular dynamics(MD)simulation suggests itself as a powerful tool for understanding and visualizing the creation of dislocations as well as the evolution of crystal defects.However,the numerical results from the large-scale MD simulations are not very illuminating by themselves and there exist various techniques for analyzing dislocations and the deformed crystal structures.Thus,it is a big challenge for the beginners in this community to choose a proper method to start their investigations.In this review,we summarized and discussed up to twelve existing structure characterization methods in MD simulations of deformed crystal solids.A comprehensive comparison was made between the advantages and disadvantages of these typical techniques.We also examined some of the recent advances in the dynamics of dislocations related to the hydraulic fracturing.It was found that the dislocation emission has a significant effect on the propagation and bifurcation of the crack tip in the hydraulic fracturing.展开更多
Collocation, as an important component of foreign language learners' competence, has attracted substantial attention from researchers on second language acquisition in the past 15 years. A wide range of empirical ...Collocation, as an important component of foreign language learners' competence, has attracted substantial attention from researchers on second language acquisition in the past 15 years. A wide range of empirical studies have been conducted, covering assessment of L2 learners' knowledge of collocations, investigation of the developmental patterns, analysis of L2 learners' collocational errors, examination of the correlation between collocations and general language skills and assessment of direct collocation instruction. The present paper reviews previous empirical studies on collocation in the field of SLA at home and abroad, and attempts to point out their limitations in order to give recommendations for further study.展开更多
基金Supported by "Qing Lan" Talent Engineering Funds by Lanzhou Jiaotong University under Grant No. QL-08-18A
文摘We investigate the influence of blurred ways on pattern recognition of a Barabasi-Albert scale-free Hopfield neural network （SFHN） with a small amount of errors. Pattern recognition is an important function of information processing in brain. Due to heterogeneous degree of scale-free network, different blurred ways have different influences on pattern recognition with same errors. Simulation shows that among partial recognition, the larger loading ratio （the number of patterns to average degree P/ （k） ） is, the smaller the overlap of SFHN is. The influence of directed （large） way is largest and the directed （small） way is smallest while random way is intermediate between them. Under the ratio of the numbers of stored patterns to the size of the network PIN is less than O. 1 conditions, there are three families curves of the overlap corresponding to directed （small）, random and directed （large） blurred ways of patterns and these curves are not associated with the size of network and the number of patterns. This phenomenon only occurs in the SFHN. These conclusions are benefit for understanding the relation between neural network structure and brain function.
基金National Science and Technology Support Program of China ( No. 2009BAG15B02) Key Pro-grams for Science and Technology Development of Chinese Transportation Industry( No. 2008-353-332-180)
文摘The general construction procedure of the steel middle pylon is briefly introduced. The alignment control of the pylon is carried out during the whole process of the construction. The control concept is extended to the manufacture stage. The manufacturing alignment error is strictly controlled in the segments precast process in factory, and the error is recognized and predicted precisely during the installation stage. The adjusting joints are employed to amend the accumulated error, which ensure that the steel pylon alignment could satisfy the precision requirements after installation.
文摘The causes and factors from ideological perspectives in intercultural miscommunication are discussed. Intercultural miscommunication can be analyzed from four aspects which are ways of thinking, value system, belief and attitude, and language usage and habits.
文摘There are some problems related to the titles of academic papers, such as, titles incorresponding to the contents, and titles being too general or colloquial. It is imperative to increase the title quality of an academic paper through peer-review, or by checking grammar mistakes with computer tools. The editors should also aim to improve their academic level of knowledge.
基金supported by the National Natural Science Foundation of China(Grant Nos.11372313,11002011 and 11202213)the Key Research Program of the Chinese Academy of Sciences(Grant No.KJZD-EW-M01)+1 种基金the Instrument Developing Project of the Chinese Academy of Sciences(Grant No.Y2010031)the Fundamental Research Funds for the Central Universities and the Beijing Higher Education Young Elite Teacher Project
文摘Dislocations are of great importance in revealing the underlying mechanisms of deformed solid crystals.With the development of computational facilities and technologies,the observations of dislocations at atomic level through numerical simulations are permitted.Molecular dynamics(MD)simulation suggests itself as a powerful tool for understanding and visualizing the creation of dislocations as well as the evolution of crystal defects.However,the numerical results from the large-scale MD simulations are not very illuminating by themselves and there exist various techniques for analyzing dislocations and the deformed crystal structures.Thus,it is a big challenge for the beginners in this community to choose a proper method to start their investigations.In this review,we summarized and discussed up to twelve existing structure characterization methods in MD simulations of deformed crystal solids.A comprehensive comparison was made between the advantages and disadvantages of these typical techniques.We also examined some of the recent advances in the dynamics of dislocations related to the hydraulic fracturing.It was found that the dislocation emission has a significant effect on the propagation and bifurcation of the crack tip in the hydraulic fracturing.
文摘Collocation, as an important component of foreign language learners' competence, has attracted substantial attention from researchers on second language acquisition in the past 15 years. A wide range of empirical studies have been conducted, covering assessment of L2 learners' knowledge of collocations, investigation of the developmental patterns, analysis of L2 learners' collocational errors, examination of the correlation between collocations and general language skills and assessment of direct collocation instruction. The present paper reviews previous empirical studies on collocation in the field of SLA at home and abroad, and attempts to point out their limitations in order to give recommendations for further study.
