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Induction motors are important part of safe and efficient running of any industrial plant. These motors are often used in industrial applications thanks to their usability and their robustness. Faults and failures of induction machine can lead to excessive downtimes processes; generate large losses in revenues and long term maintenance. Early detection of motor abnormalities would help avoiding costly breakdowns. In this paper a diagnostic technique of induction motor broken rotor bars is presented. The applied method is the so-called Motor Current Signature Analysis (MCSA) which utilized the results of spectral analysis of the stator current. The broken rotor bars and rings will cause twice slip frequency side bands around the supplying frequency. The fault detection method consists in monitoring of stator phase current spectrum. Twice slip frequency side bands around the main frequency detected by spectral analysis is an indicator of the broken bars. The experimental results show the efficiency of the method.
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Foreign direct investments (FDI) mostly occur in a form of mergers and acquisitions (M&A) - about 90%; other two forms are joint venture and greenfield investment. Which form is the most important and efficient one for various FDI-recipient countries? The choice of any form of transnational investment depends on a very large scale of factors, as an economic development level of a country, aims and rate of economy’s transformation, national government policy, etc. For example, M&A as a form dominates in developed countries. Creating a joint venture appears as the most efficient form in attracting FDI in many developing and some of CIS countries. The paper examines the particularities of FDI trends in Uzbekistan.
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Investments are one of the main factors of agricultural development and agricultural development can be considered a function of investment. Agriculture, as one of the most important economic areas in Serbia is need of investments which can intensify agricultural production. The whole progress of humanity caused by the continuous separation of part of the surplus and its investment in the steady development of productive forces of every society, regardless of the mode of production and productive relations that govern it.
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Article focuses on selected features of the new economy, especially globalization, changes brought about as a consequence, new skills required for management, including a shift in the indicators for assessing business performance.
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The aim of this paper is to present selected experiences of European Union trade liberalization, impact of globalization on vulnerable sectors of the EU. Many such experiences are discussed. Central Asian countries must consider vast amount of data, sector-specific information and aspects and still it will not be easy to say that pursued liberalization is the good direction to a wealthier nation with healthy regions, richer citizens and higher tax income for government. We start with brief introduction discussing primary motivation for European liberalization, then we focus on review selected literature sources, concluding that liberalization in general is a good thing and that there is very high probability of success but no guarantees can be drawn as every country is very specific and all policies must be pursued with high degree of attention and thorough analysis. Based on good EU examples of BFTA and CEFTA we recommend considering multilateral free trade agreement within CIS free trade area.
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The cotton production complex of Uzbekistan has high rating comparing other export oriented branches. Cotton fiber value in 2008 share made 12% from total export of the country. The paper observes some trends and policy priorities in cotton industry development.
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Tourism sector remains under- analyzed by economists and specifically there is a need to develop a model which allows clarifying the impact of government policy in transition countries on this sector. This paper aims to analyze the influence of currency liberalization on the volume of services in tourism from 1995 to 2009.
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Improving competitiveness of organizations necessary for their success in a market economy is no longer possible only due to material resources. This implies need for qualitatively new approach to human capital. The author reviews approaches to team building and suggests team management model based on situations-cases in which the organized one way or another team reaches goal.
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After gaining independence in Albania in 1912, property ownership experienced major reforms. During communism many agricultural lands were seized by the Agrarian Reform Law. In 1990, with the fall of communism there was a huge demographic movement of people from villages to urban areas, where they settled in lands that were used by the Cooperatives. This created a lot of problems with previous land owners whose land was seized and given to the Cooperativa. Today there is a problem with the rights to property ownership, and legal certificates of ownership.
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Higher education is enduring fundamental changes - universities are experimenting with new ways of funding and forging partnerships with private companies, competition is fiercer than ever before. All these changes indicate that higher education is becoming an industry. Thus, in order to succeed, institutions of higher education, just like profit oriented organizations, have to know how to enhance an manage their performance. The paper depicts the process of defining key performance indicators for higher education institutions in Serbia. Once determined, key performance indicators become a basis for improving control of use of organizational resources, quality of business results and for aligning business strategy with business technology.
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The aim of this article is to present results of Uzbek travel companies survey focusing primarily on market research and strategy-setting while putting this in contrast to international experience in this sector. We present that many Uzbek travel companies are not used to do proper marketing research, only the biggest are. There are not rare cases of situations when management does not know how to define strategic behavior and strategy itself (as majority of companies lack long-term vision and orient themselves primarily on short run profits).
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The paper examines vertical and lateral approaches to cotton condensation. The research suggests empirical dependence between bulk weight of raw cotton and condensing loading. Thus, the received theoretical dependence helps to define more effective method of cotton condensation.
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A common method employed in tracking the success of poverty alleviation in ensuring sustainable development is through the use of a set of lead indicators which provide tangible measures of evaluating fluctuations in both poverty and environmental quality. A requirement of such lead indicators is that they be diverse in their approach, as indicators from different disciplines have their strengths and weaknesses. A motivation is made here for broadening the scope of such research through the inclusion of a set of energy based poverty indicators in the area of poverty assessment. Such energy poverty indicators provide an invaluable extra dimension in the assessment in that they relate to all three sustainability spheres: economic, social and environmental.
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Paper is a case study of console market, where the console makers are identified as group G which shares a distributed knowledge of current consumer expectations. According to the basic logic, it is reasonable to expect that if it is commonly known that a choice A is better than a choice B, any agent i will prefer the choice instead of the inferior one. In case some console makers chose a completely different outcome which is rather based on belief instead of common knowledge.
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The paper discusses challenges and priorities of integration of Kazakhstan in conditions of globalization. Developing the county’s competitiveness is perceived as central task in globalization of national market. The paper suggests policy directions to maintain it: improving the institutional framework of market economy, increasing its transparency and reducing corruption, focusing on technological and innovative development as well.
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The author justifies the need to develop new standards for gas purification process. It is believed that these standards should assume introduction of new resource-saving technologies and also meet the modern international requirements to improve environmental safety. The article shows the need for the introduction and development of environmental management system according to ISO 14000 standards to reduce the industrial impact of gas deposits on the environment.
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The world economic crisis was a major factor that caused industrial production and trade over the globe decrease. It closed millions of working places and effected fear of political instability to spread even over the states that have been considered as stable. Economies all over the world face with wide range recessions, that will lead to the 3% to 7% GNP drop with respect to the last decade increasing trend. In such uncertainty conditions, where authorities are not sure about crisis development and duration, banner task is imposed: uncertainty must be passed. In Serbian economy, good model for crisis overcoming is agriculture strategic development and especially within it, the safe food production. One of guidelines of Serbian agriculture development is modernization and change of production structure towards stronger market orientation and improvement of alimentary industry total efficiency. Increased productively technological restructuring achieving increased efficiency, as well as greater competitiveness at domestic and foreign markets should be based on economical, ecological and energy criterions. Also, applied scientific research papers should allow significant increase of size and competitiveness of Serbian agriculture production
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