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Search Results: 1 - 10 of 108046 matches for " Zhang Na "
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From the Industry Perspective of Chinese Game Industry Research in Quantitative Analysis  [PDF]
Na Wang, Yongtao Zhou, Li Zhang
Open Journal of Statistics (OJS) , 2014, DOI: 10.4236/ojs.2014.44026

With Chinese Full-Text Database Journal Net, this paper makes a general analysis over the developing process and current situation of the game industry study which is undertaken with the view of the industry by China’s scholars from 1979 to 2013. By means of content analysis approach, this paper takes extensive study covering research projects, topics, methods, theory applied and the shift of study topics.

Research on the Application of AHP and Fuzzy Comprehensive Evaluation of Teaching Quality in Basic Mathematics Classroom  [PDF]
Li Zhang, Hailun Fu, Na Wan
Creative Education (CE) , 2018, DOI: 10.4236/ce.2018.915197
Abstract: With the development and innovation of basic mathematics education, the classroom teaching quality has become a hot spot of basic mathematics education curriculum and teaching reform. The high classroom teaching quality can comprehensively and deeply reflect the teaching level of teachers, improve?the level of students’ mathematical key competencies, and realize?the fast improvement of mathematics learning process. Therefore,?the evaluation of it has become not only important but necessary. As a result, we argue that evaluation indicator system of teaching quality should be well researched.?Based on the multi-layered and fuzzy-paste nature of the evaluation problem of classroom teaching quality, the evaluation model of classroom teaching quality is tried to construct. By using analytic hierarchy process, the weight of each indicator is determined, and the teaching quality is determined by using the model of fuzzy comprehensive evaluation. The evaluation method improves the reliability and objectivity of the evaluation results, promoting students’ efficient learning of mathematics and teaching level.
Painting Therapy in Cancer Care: A Descriptive Systematic Review  [PDF]
Zhenting Ding, Yanqiong Ouyang, Na Zhang
Open Journal of Nursing (OJN) , 2019, DOI: 10.4236/ojn.2019.92009
Abstract: Background: Despite art therapy has been widely used in cancer population to improve their physical and mental health, painting therapy, as one form of art therapy, is seldom applied to adult cancer patients independently. Therefore, how painting therapy affects adult cancer patients’ health outcomes needed to be explored sufficiently. Objectives: The purpose of this review was to assess and synthesize the latest evidence of painting therapy concerning adult cancer patients, and to provide some inspiration for clinical staff. Methods: A literature research of PubMed, Web of Science, Cochrane Library, EMBASE, CINAHL, PsychoInfo, Psydex, CENTRAL, Google Scholar, British Library, CNKI, Wanfang, CQVIP electronic databases were undertaken with the following key words: art therapy, painting, drawing, cancer, neoplasm, tumor, carcinoma and oncology. A narrative synthesis was used according to PRISMA and the quality of study was assessed using acritical assessment tool. Results: Eleven papers reporting nine different research projects met the inclusion criteria. Generally speaking, painting therapy positively affected health outcomes. The impacts on patients include improvements in quality of life, coping with disease, mental health and somatic symptoms. However, inconsistency still exists. Three studies failed to show positive effects of painting therapy on post-traumatic growth, distress and coping behavior in participants. Conclusion: Robust evidence was found in rehabilitation of patients with various types of cancer. Painting therapy evidently affected cancer patients in a positive direction. However, the application of painting therapy to cancer patients needs to be explored further due to few studies on this topic.
Optimal Stopping Problems with Regime Switching: A Viscosity Solution Method
Na Zhang,Yongchao Zhang
Mathematics , 2014,
Abstract: We employ the viscosity solution technique to analyze optimal stopping problems with regime switching. Specifically, we obtain the viscosity property of value functions, the uniqueness of viscosity solutions, the regularity of value functions and the form of optimal stopping intervals. Finally, we provide an application of the results.
Feedback Control Variables Have No Influence on the Permanence of a Discrete -Species Schoener Competition System with Time Delays
Qianqian Su,Na Zhang
Discrete Dynamics in Nature and Society , 2010, DOI: 10.1155/2010/583203
Abstract: We consider a discrete -species Schoener competition system with time delays and feedback controls. By using difference inequality theory, a set of conditions which guarantee the permanence of system is obtained. The results indicate that feedback control variables have no influence on the persistent property of the system. Numerical simulations show the feasibility of our results. 1. Introduction The Schoener's competition system has been studied by many scholars. Topics such as existence, uniqueness, and global attractivity of positive periodic solutions of the system were extensively investigated and many excellent results have been derived [1–5]. Liu et al. [1] propose and study the global stability of the following continuous Schoener's competition model with delays: where , , and are all positive bounded and continuous functions, are positive integers, , , , . As we all know, though most dynamic behaviors of population models are based on the continuous models governed by differential equations, the discrete time models are more appropriate than the continuous ones when the size of the population is rarely small or the population has nonoverlapping generations. It has been found that the dynamics behaviors of the discrete system are rather complex and contain more rich dynamics than the continuous ones [6]. Recently, more and more scholars paid attention to study the discrete population models (see [4–13] and the references cited therein). For example, [5] considered the permanence and global attractivity of the following discrete Schoener's competition model with delays: where , , and are real positive bounded sequences, are positive integers, , , , On the other hand, as was pointed out by Huo and Li [14], ecosystem in the real world is continuously disturbed by unpredictable forces which can result in changes in the biological parameters such as survival rates. Practical interest in ecology is the question of whether or not an ecosystem can withstand those unpredictable disturbances which persist for a finite period of time. In the language of control variables, we call the disturbance functions as control variables. During the last decade, many scholars did excellent works on the feedback control ecosystems (see [14–21] and the references cited therein); however, most of those works are concerned with the continuous model and seldom did scholars considered the discrete ecosystem with feedback controls ([13, 15, 21]). Recently, Li and Yang [15] proposed the following discrete -species Schoener competition system with time delays and feedback
Stability and global attractivity for a class of nonlinear delay difference equations
Binxiang Dai,Na Zhang
Discrete Dynamics in Nature and Society , 2005, DOI: 10.1155/ddns.2005.227
Abstract: A class of nonlinear delay difference equations are considered and some sufficient conditions for global attractivity of solutions of the equation are obtained. It is shown that the stability properties, both local and global, of the equilibrium of the delay equation can be derived from those of an associated nondelay equation.
Explicit analytical solutions of non-Fourier heat conduction equation for IC chip
Ruixian Cai,Na Zhang
Chinese Science Bulletin , 1998, DOI: 10.1007/BF02883077
Abstract: Four basic explicit analytical solutions of non-Fourier heat conduction equation simulating IC chip thermal condition are derived. Some other analytical series solutions can also be derived with the above-mentioned basic solutions. Analytical solution has its own irreplaceable important meaning in theory. In addition, as the standard solution to check the accuracy, convergence and effectiveness of various numerical computational methods and their differencing schemes, grid generation ways and so on, the analytical solution is very useful also for the newly rapidly developing computational heat transfer.
Analysis on the Concepts and Theories of the Quality of Graduate Education
Su Zhang,Na An
Asian Social Science , 2010, DOI: 10.5539/ass.v6n12p86
Abstract: In China, with the sustained development of mass higher education, tutors and staff of graduate school point out that the quality of graduate education tends to decline. In order to solve this problem, lessons must be drawn from the theoretical thinking of predecessors. This paper compiles the concepts and theories of postgraduate, hoping to provide a reference for the quality of graduate education.
Reflection on the Concept of “Minzu” in Cross-Cultural Communication
Cross-Cultural Communication , 2006, DOI: 10.3968/613
Abstract: With an objective analysis of Minzu’s Chinese definitions and a comparative study with its most frequent English translations, this paper aims to reveal potential misunderstanding issues in the practice of cross-lingual, cross-cultural interaction. Keywords: Minzu, culture, world-view, cross-cultural communication Résumé Cet article analyse objectivement la complexité et l’ambigu té de la signification du mot nation dans le chinois, met en question son tradution anglaise et indique les problèmes latents des propos concernant la nation dans la communication transculturelle. Cet article vise à révéler les barrières éventuelles dans la communication transculturelle à travers l’analyse de la complexité et l’ambigu té de la notion nation et discute les stratégies de la communication transculturelle dans le contexte de la mondialisation. Mots-clés: nation, culture, concept du monde, communication transculturelle 摘 要 本文客觀分析了“民族"一詞現代漢語語義的複雜性和模糊性,並提出了對其主要英語譯文的質疑,指出了“民族"相關話語在跨文化交際中的潛在問題。旨在透過中英“民族"概念的複雜性和模糊性揭示中西跨文化交際的可能障礙,並探討全球化語境下跨文化交際策略。 關鍵詞:民族;文化;世界觀;跨文化交際
Invariant representation for stochastic differential operator by BSDEs with uniformly continuous coefficients and its applications
Na Zhang,Guangyan Jia
Mathematics , 2012,
Abstract: In this paper, we prove that a kind of second order stochastic differential operator can be represented by the limit of solutions of BSDEs with uniformly continuous coefficients. This result is a generalization of the representation for the uniformly continuous generator. With the help of this representation, we obtain the corresponding converse comparison theorem for the BSDEs with uniformly continuous coefficients, and get some equivalent relationships between the properties of the generator $g$ and the associated solutions of BSDEs. Moreover, we give a new proof about $g$-convexity.
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