Using English original movies for listening teaching has become a new way for listening teaching.Based on the related researches,some ways of teaching English listening with original English movies are given with a te...Using English original movies for listening teaching has become a new way for listening teaching.Based on the related researches,some ways of teaching English listening with original English movies are given with a teaching example.展开更多
Clothing is one of the important factors to perfect present the movie for the audiences; it represents the film actor＇ s ＂second language.＂ A good audience＇ s favorite films in a wonderful show give the audience s...Clothing is one of the important factors to perfect present the movie for the audiences; it represents the film actor＇ s ＂second language.＂ A good audience＇ s favorite films in a wonderful show give the audience story, but also the beauty film＇ s art manifested clothing, it gives the audience a visual double enjoyment. In recent years, more and more sci-fi drama movies are loved by the people and recognized by the box office, many science fiction movies in the summer file or Lunar New Year stalls have become a box-office champion. In addition to this success, it is the use of high-tech movie, naturally inseparable from the influx of conceptual clothing. Science fiction movie is about the future vision of the world and longing, through the idea that the concept is applied to the fihn, the final screenplay conceives a screenwriter and shoot. Thus, science fiction nmvies emphasize that the ＂future＂ concept theme, movie costumes are also combined with the need to choose the theme and design, it is clear conceptual costume for sci-fi movie and it is most appropriate. The use of conceptual clothing itself, avant-garde ＂, ＂personality＂ has a sense of future space features, you can add heavy feeling for the future concept of the film, while also provide some support for the fihn to create a science fiction theme.展开更多
Supercapacitors, with ultrahigh power density, superior rate capability, long-term cyclability, and exceptional safety, are regarded as one highly competitive candidate of electrochemical energy storage devices,fillin...Supercapacitors, with ultrahigh power density, superior rate capability, long-term cyclability, and exceptional safety, are regarded as one highly competitive candidate of electrochemical energy storage devices,filling the gap between batteries and conventional capacitors. Despite of tremendous effort, elaborated screening of high-performance electrode materials, e.g., graphene, is still intensively required. In this review, we describe the most recent progress in the research and development of graphene-based materials for high-performance and new-concept supercapacitors for the targeted applications in next-generation and smart electronics. First, the design and fabrication of high-performance supercapacitors, including electrical double layer capacitors, pseudocapacitors and hybrid supercapacitors, were summarized in term of the charge storage mechanism. Second, new-concept supercapacitors with multiple functionalities of high-voltage, fiber-shape, microscale and shape-diversity in order to fulfill the requirements of future electronics are reviewed. Accordingly, special emphasis is given to the structure-dependent-performance effects of pores, hybridization, dimensionalities of graphene-based materials on performance of supercapacitors, and tremendous potential of graphene-based planar micro-supercapacitors for the direct seamlessly integration with versatile micro-electronics. Finally, perspectives and challenges of graphene-based supercapacitors are briefly discussed.展开更多
With the rapid development of Internet technology,the Internet economy has gradually penetrated into every aspect of people’s life.The group of high school students has increasingly become an important part of the In...With the rapid development of Internet technology,the Internet economy has gradually penetrated into every aspect of people’s life.The group of high school students has increasingly become an important part of the Internet consumption market,and its consumption concept is also deeply influenced by the Internet economy.Based on the analysis of the development status of the Internet economy and the characteristics of high school students’consumption concepts,this article analyzes the double impact of the Internet economy on high school students’consumption concepts.On this basis,it expounds how to guide high school students to form the correct consumption concepts under the Internet economy from the three dimensions of school,family and individual.展开更多
Clustering high dimensional data is challenging as data dimensionality increases the distance between data points,resulting in sparse regions that degrade clustering performance.Subspace clustering is a common approac...Clustering high dimensional data is challenging as data dimensionality increases the distance between data points,resulting in sparse regions that degrade clustering performance.Subspace clustering is a common approach for processing high-dimensional data by finding relevant features for each cluster in the data space.Subspace clustering methods extend traditional clustering to account for the constraints imposed by data streams.Data streams are not only high-dimensional,but also unbounded and evolving.This necessitates the development of subspace clustering algorithms that can handle high dimensionality and adapt to the unique characteristics of data streams.Although many articles have contributed to the literature review on data stream clustering,there is currently no specific review on subspace clustering algorithms in high-dimensional data streams.Therefore,this article aims to systematically review the existing literature on subspace clustering of data streams in high-dimensional streaming environments.The review follows a systematic methodological approach and includes 18 articles for the final analysis.The analysis focused on two research questions related to the general clustering process and dealing with the unbounded and evolving characteristics of data streams.The main findings relate to six elements:clustering process,cluster search,subspace search,synopsis structure,cluster maintenance,and evaluation measures.Most algorithms use a two-phase clustering approach consisting of an initialization stage,a refinement stage,a cluster maintenance stage,and a final clustering stage.The density-based top-down subspace clustering approach is more widely used than the others because it is able to distinguish true clusters and outliers using projected microclusters.Most algorithms implicitly adapt to the evolving nature of the data stream by using a time fading function that is sensitive to outliers.Future work can focus on the clustering framework,parameter optimization,subspace search techniques,memory-efficient synopsis structures,explicit cluster change detection,and intrinsic performance metrics.This article can serve as a guide for researchers interested in high-dimensional subspace clustering methods for data streams.展开更多
文摘Using English original movies for listening teaching has become a new way for listening teaching.Based on the related researches,some ways of teaching English listening with original English movies are given with a teaching example.
文摘Clothing is one of the important factors to perfect present the movie for the audiences; it represents the film actor＇ s ＂second language.＂ A good audience＇ s favorite films in a wonderful show give the audience story, but also the beauty film＇ s art manifested clothing, it gives the audience a visual double enjoyment. In recent years, more and more sci-fi drama movies are loved by the people and recognized by the box office, many science fiction movies in the summer file or Lunar New Year stalls have become a box-office champion. In addition to this success, it is the use of high-tech movie, naturally inseparable from the influx of conceptual clothing. Science fiction movie is about the future vision of the world and longing, through the idea that the concept is applied to the fihn, the final screenplay conceives a screenwriter and shoot. Thus, science fiction nmvies emphasize that the ＂future＂ concept theme, movie costumes are also combined with the need to choose the theme and design, it is clear conceptual costume for sci-fi movie and it is most appropriate. The use of conceptual clothing itself, avant-garde ＂, ＂personality＂ has a sense of future space features, you can add heavy feeling for the future concept of the film, while also provide some support for the fihn to create a science fiction theme.
基金financially supported by the National Natural Science Foundation of China(Grant 51572259)National Key R&D Program of China(Grant 2016YBF0100100 and2016YFA0200200)+2 种基金Natural Science Foundation of Liaoning Province(Grant 201602737)Thousand Youth Talents Plan of China,DICP(DICP ZZBS201708)Exploratory Research Projects of Shaanxi Yanchang Petroleum(Group)CO.,LTD&DICP
文摘Supercapacitors, with ultrahigh power density, superior rate capability, long-term cyclability, and exceptional safety, are regarded as one highly competitive candidate of electrochemical energy storage devices,filling the gap between batteries and conventional capacitors. Despite of tremendous effort, elaborated screening of high-performance electrode materials, e.g., graphene, is still intensively required. In this review, we describe the most recent progress in the research and development of graphene-based materials for high-performance and new-concept supercapacitors for the targeted applications in next-generation and smart electronics. First, the design and fabrication of high-performance supercapacitors, including electrical double layer capacitors, pseudocapacitors and hybrid supercapacitors, were summarized in term of the charge storage mechanism. Second, new-concept supercapacitors with multiple functionalities of high-voltage, fiber-shape, microscale and shape-diversity in order to fulfill the requirements of future electronics are reviewed. Accordingly, special emphasis is given to the structure-dependent-performance effects of pores, hybridization, dimensionalities of graphene-based materials on performance of supercapacitors, and tremendous potential of graphene-based planar micro-supercapacitors for the direct seamlessly integration with versatile micro-electronics. Finally, perspectives and challenges of graphene-based supercapacitors are briefly discussed.
文摘With the rapid development of Internet technology,the Internet economy has gradually penetrated into every aspect of people’s life.The group of high school students has increasingly become an important part of the Internet consumption market,and its consumption concept is also deeply influenced by the Internet economy.Based on the analysis of the development status of the Internet economy and the characteristics of high school students’consumption concepts,this article analyzes the double impact of the Internet economy on high school students’consumption concepts.On this basis,it expounds how to guide high school students to form the correct consumption concepts under the Internet economy from the three dimensions of school,family and individual.
文摘Clustering high dimensional data is challenging as data dimensionality increases the distance between data points,resulting in sparse regions that degrade clustering performance.Subspace clustering is a common approach for processing high-dimensional data by finding relevant features for each cluster in the data space.Subspace clustering methods extend traditional clustering to account for the constraints imposed by data streams.Data streams are not only high-dimensional,but also unbounded and evolving.This necessitates the development of subspace clustering algorithms that can handle high dimensionality and adapt to the unique characteristics of data streams.Although many articles have contributed to the literature review on data stream clustering,there is currently no specific review on subspace clustering algorithms in high-dimensional data streams.Therefore,this article aims to systematically review the existing literature on subspace clustering of data streams in high-dimensional streaming environments.The review follows a systematic methodological approach and includes 18 articles for the final analysis.The analysis focused on two research questions related to the general clustering process and dealing with the unbounded and evolving characteristics of data streams.The main findings relate to six elements:clustering process,cluster search,subspace search,synopsis structure,cluster maintenance,and evaluation measures.Most algorithms use a two-phase clustering approach consisting of an initialization stage,a refinement stage,a cluster maintenance stage,and a final clustering stage.The density-based top-down subspace clustering approach is more widely used than the others because it is able to distinguish true clusters and outliers using projected microclusters.Most algorithms implicitly adapt to the evolving nature of the data stream by using a time fading function that is sensitive to outliers.Future work can focus on the clustering framework,parameter optimization,subspace search techniques,memory-efficient synopsis structures,explicit cluster change detection,and intrinsic performance metrics.This article can serve as a guide for researchers interested in high-dimensional subspace clustering methods for data streams.
