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The first wave of revival of States and nations of Asia and Africa which shaped major changes in the history of humankind organized itself in the Bandung spirit in the frame of countries Non-Aligned on colonialism and neo colonialism, the pattern of globalization at that time. Now, the same nations, as well as those of Latin America and the Caribbean, are challenged by neo-liberal globalization, which is no less imbalanced by nature. Therefore, they must unite to face the challenge successfully as they did in the past. In some countries “sovereign” projects are developed that associate active State policies aimed at systematically constructing a national integrated consistent modern industrial productive system, supported by an aggressive export capacity. Views with respect to the degree, format and eventual regulation of opening to foreign capital and financial flows of all kinds (foreign direct investments, portfolio investments, speculative financial investments) differ from country to country. Policies pursued with respect to the access to land and other natural resources also offer a wide spectrum of different choices and priorities.  相似文献   
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Despite several studies having been conducted to examine organizational image from a business perspective, there has not been adequate research in the area of perceived image in nonprofit organizations such as universities. Thus, the purpose of this study was to examine the factors contributing to university image, from the postgraduate students’ point of view. In addition, the impact of the students’ perceived university image on their organizational trust was examined. The population of this study consisted of postgraduate students in 10 of the top Iranian universities. Questionnaires were used to collect the required data. The findings indicated the difference between current practices and ideal values of the factors contributing to the university image. Based on our findings, the factors contributing to university image range from internal and international reputation, university members, and academic planning, to university environment. Furthermore, we found that university image has a significant impact on students’ trust in their university.  相似文献   
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In this paper a new integrated observer-based fault estimation and accommodation strategy for discrete-time piecewise linear (PWL) systems subject to actuator faults is proposed. A robust estimator is designed to simultaneously estimate the state of the system and the actuator fault. Then, the estimate of fault is used to compensate for the effect of the fault. By using the estimate of fault and the states, a fault tolerant controller using a PWL state feedback is designed. The observer-based fault-tolerant controller is obtained by the interconnection of the estimator and the state feedback controller. We show that separate design of the state feedback and the estimator results in the stability of the overall closed-loop system. In addition, the input-to-state stability (ISS) gain for the closed-loop system is obtained and a procedure for minimizing it is given. All of the design conditions are formulated in terms of linear matrix inequalities (LMI) which can be solved efficiently. Also, performance of the estimator and the state feedback controller are minimized by solving convex optimization problems. The efficiency of the method is demonstrated by means of a numerical example.  相似文献   
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Having found hidden hyperchaos in a 5D self-exciting homopolar disc dynamo, we study the existence of a Hopf bifurcation, which leads to unstable limit cycles bifurcating from a stable equilibrium. Hidden chaos with only stable equilibria can be observed from the Hopf bifurcation: a typical way to enable hidden attractors to be located. We then provide a new fuzzy controller, and a fast fuzzy disturbance observer, based on terminal sliding mode control for synchronization of the hyperchaotic system. Fuzzy inference is considered to weaken the chattering phenomena. Using Lyapunov stability theory, the stability of the closed-loop system is proved. Finally, simulations of synchronization are illustrated to show the efficient performance of the designed control method via external disturbances and dynamic uncertainties.  相似文献   
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Although Richard Rorty's controversial thought has been the subject of many works, there has not been much discussion about his approach to cultural difference. The purpose of this article is to examine how Rorty sees cultural differences philosophically and how he deals with them politically. For him, rationality, morality and even the scope of moral responsibility towards others are defined in terms of solidarity with a particular community and ‘ethnocentrism’, rather than in terms of a universal and metaphysically derived set of criteria. It can be argued that since language, language games and values are mainly components of culture, the latter is one of the most significant communities with which Rorty is concerned, though he is not explicit about it. Nevertheless, Rorty does not think that the moral and philosophical significance of communities, particularly cultural communities, should be reflected in politics. The main argument of the article is that there is an unresolved tension in Rorty's thought between philosophical, moral and emotional attribution of significance to communities and arguably cultural communities, and a disregard for them in the political sphere. This paves the way for outlining an approach to cultural difference that is more just and even more in harmony with Rorty's own philosophy.  相似文献   
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