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Search Results: 1 - 10 of 16127 matches for " Zhanjun Su "
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The Triangle Inequality and Its Applications in the Relative Metric Space  [PDF]
Zhanjun Su, Sipeng Li, Jian Shen
Open Journal of Discrete Mathematics (OJDM) , 2013, DOI: 10.4236/ojdm.2013.33023
Abstract:

Let C be a plane convex body. For arbitrary points , a,b ∈E ndenote by │ab│ the Euclidean length of the line-segment ab. Let a1b1 be a longest chord of C parallel to the line-segment ab. The relative distance dc(a,b) between the points a and b is the ratio of the Euclidean distance between a and b to the half of the Euclidean distance between a1 and b1. In this note we prove the triangle inequality in E2 with the relative metric dc( .,.), and apply this inequality to show that 6≤l(P)≤8, where l(P) is the perimeter of the convex polygon P measured in the metric dp

Diffraction, Refraction, and Reflection of An Extreme-Ultraviolet Wave Observed during Its Interactions with Remote Active Regions
Yuandeng Shen,Yu Liu,Jiangtao Su,Hui Li,Ruijuan Zhao,Zhanjun Tian,Kiyoshi Ichimoto,Kazunari Shibata
Physics , 2013, DOI: 10.1088/2041-8205/773/2/L33
Abstract: We present observations of the diffraction, refraction, and reflection of a global extreme-ultraviolet (EUV) wave propagating in the solar corona. These intriguing phenomena are observed when the wave interacts with two remote active regions, and they together exhibit the wave property of this EUV wave. When the wave approached AR11465, it became weaker and finally disappeared in the active region, but a few minutes latter a new wavefront appeared behind the active region, and it was not concentric with the incoming wave. In addition, a reflected wave was also observed simultaneously on the wave incoming side. When the wave approached AR11459, it transmitted through the active region directly and without reflection. The formation of the new wavefront and the transmission could be explained with diffraction and refraction effects, respectively. We propose that the different behaviors observed during the interactions may caused by different speed gradients at the boundaries of the two active regions. For the origin of the EUV wave, we find that it formed ahead of a group of expanding loops a few minutes after the start of the loops' expansion, which represents the initiation of the associated coronal mass ejection (CME). Based on these results, we conclude that the EUV wave should be a nonlinear magnetosonic wave or shock driven by the associated CME, which propagated faster than the ambient fast-mode speed and gradually slowed down to an ordinary linear wave. Our observations support the hybrid model that includes both fast wave and slow non-wave components.
Tentative Exploration of Construction of a Harmonious Campus under the Perspective of Scientific Outlook on Development
Zhanjun Ma
Asian Social Science , 2010, DOI: 10.5539/ass.v6n9p59
Abstract: The core of scientific outlook on development is development and the essence is human oriented. Human orientation and construction of a harmonious campus is to lead all work in a school in a unified way with the human-oriented scientific outlook on development, unify thinking, converge feeling of people and promote rapid, healthy, coordinated and sustainable development of the school work.
Study on Education and Management of University Students in the New Period
Zhanjun Ma
Asian Social Science , 2010, DOI: 10.5539/ass.v6n6p133
Abstract: At present, there exist a lot of unsatisfactory aspects in education and management of university students. Education and management of university students have to carry out the scientific outlook on development of people oriented so as to cultivate qualified constructers and reliable successors, which is the core, continually strengthen institutional establishment, improve quality of the teams, practically change the style of work, enhance the level of management, cultivate talents with high quality, promote rapid, healthy and coordinated development of universities and colleges, which all can offer guarantee of talents and intelligence for building a well-off society in all all-around way and facilitating establishment of socialist modernization.
Cultivation of Students’ Scientific and Technological Ability for Innovation
Zhanjun Ma
Asian Social Science , 2010, DOI: 10.5539/ass.v6n4p76
Abstract: Students’ scientific and technological ability for innovation is high-quality talents’ core and soul. Aiming at the actuality of students’ scientific and technological ability for innovation and the cognition and analysis about the cultivation of students’ scientific and technological ability for innovation, the thoughts and measures about the cultivation of students’ scientific and technological ability for innovation are proposed in this article, in order to build the deep academic atmosphere of students’ scientific and technological innovation, form the good cycle of teachers and students’ innovational consciousness, enhance the cultivation of students’ scientific and technological ability, fulfill the demand of the development of society and economy, realize the new spanning of talent cultivation, and make new contribution for the economic construction and the building of the affluent society.
Explore the Ideological and Political Work of University Teachers and Students in the New Era
Zhanjun Ma
Asian Social Science , 2010, DOI: 10.5539/ass.v6n3p118
Abstract: Development is the core of the scientific outlook on development. Its essence is people-oriented and the main content is comprehensive, coordinated and sustainable development. Using the scientific outlook on development to guide the ideological and political work in higher schools is to unify thoughts and coagulate the people’s mind to promote the rapid, healthy and coordinated development of higher schools so as to provide personnel and intellectual support for comprehensively building a well-off society and the socialist modernization.
Thought on Innovation of College Student Work Idea in a New Period
Zhanjun Ma
Asian Social Science , 2010, DOI: 10.5539/ass.v6n8p64
Abstract: Colleges and universities assume the fundamental task of cultivating socialist cause constructors and successors with all-around development of morality, intelligence, physique and aesthetic, and all work in colleges and universities has to cater to and serve development and growth of students. As an important component of realization of the fundamental task of colleges and universities, student work has to insist on human-oriented and innovate the idea of student work, so that we can better do the management of college students and promote earlier growth of students. Innovation of students work idea is to employ the human-oriented scientific outlook on development to lead student management work, liberate thought, update concept and promote healthy, coordinated and sustainable development of college student management work.
Cognition and Practice of Strengthening Psychological Health Education among University Students in a New Period
Zhanjun Ma
Asian Social Science , 2010, DOI: 10.5539/ass.v6n10p83
Abstract: Psychological health education is the important foundation and condition to improve the overall quality of university students in a comprehensive way. According to modern education theory, education does not only mean imparting knowledge and skills, but more creates a sound personality with perfect psychological characteristics. To strengthen psychological health education among university students is an important measure to comprehensively carry out the educational strategy of CPC and implement education for all-round development in a new situation and is an important means and approach to promote overall development of university students. To improve psychological health level of university students is an important guarantee for university students to go towards modernization, go towards the world and go towards the future.
Exploration into Construction of Moral Education in Colleges and Universities in a New Period
Zhanjun Ma
Asian Social Science , 2010, DOI: 10.5539/ass.v6n7p65
Abstract: Colleges and universities assume the important historical mission of cultivating socialism modernization constructors and reliable successors with lofty ideals, integrity, knowledge and a strong sense of discipline. Colleges and universities should carry out the educational strategy of the Communist Party of China in an all-around way, push ahead with education for all-around development and improve education quality. In order to enable students to be developed in aspects of morality, intelligence, physique and art, the schools have to insist on the principle of human education oriented and moral education first, and regard moral establishment and human education as the fundamental task of education.
Deterministic Secure Direct Bidirectional Communication Protocol
Zhanjun Zhang
Physics , 2004,
Abstract: In this letter a deterministic secure direct bidirectional communication protocol is proposed by using the quantum entanglement and local unitary operations on one photon of the Einstein-Podolsky-Rosen (EPR) photon pair.
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