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Search Results: 1 - 10 of 536 matches for " ubo Popovi "
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Modeling of a System with Hybrid Dynamics
Vratislav Hladky , ubo Popovi , Ján Sarnovsky
Acta Electrotechnica et Informatica , 2011, DOI: 10.2478/v10198-011-0002-2
Abstract: The article deals with modeling of a system with hybrid dynamics and with two tools for modeling of such systems. For purpose of modeling we chose the system of coupled tanks. The tanks are situated in different heights and dynamics of the system changes in the moment when the liquid level in the second tank runs over the height of bottom of the first tank. That represents hybrid nature of this system. We chose two tools for simulation of hybrid systems - MPT toolbox and HYSDEL and we specifically aim on modeling of the system of coupled tanks by both these tools and on comparison of these tools. The tools are free however they do not work independently but as a part of the simulation language Matlab.
Dilemmas and Controversies in the Interpretation of Laboratory Results
Danica Popovi , Mirko Popovi
Journal of Medical Biochemistry , 2008, DOI: 10.2478/v10011-008-0006-3
Abstract: Concentration of many substances in blood is a good indicator of the physiologic state of a patient. It is usual that results obtained represent the real concentration of tested substances in a patient, that is, represent his physiological state. The influence of some factors indicates that this assumption is not always true. Mistakes owing to analytic factors are reduced to the least possible rate by using the quality control. Also, many nonanalytic factors can change the concentration of one or more substances in the sample, so the results obtained are not an indicator of the physiological state of the patient. Results of clinical-biochemical determination are interpreted by comparing with the reference values and so the conclusion is made by a comparison method. In order to perform this process properly, reference values for each specific parameter are necessary. Cyclic variations, physical activity, stress, and other factors significantly affect the obtained result analysis. In the interpretation of results, these specificities have to be considered, otherwise they will be interpreted as pathologic, which leads to wrong conclusions. Inadequate preparation of a patient for a certain analysis and disrespect for rules regarding preparation and sample analyzing can lead to drastic deviation of results from the real values. For those reasons there are certain dilemmas and controversies in the result interpretation.
Virtual and Remote Laboratories in Process of Control Education
Martin Kalúz,ubo? ?irka,Miroslav Fikar
International Journal of Online Engineering (iJOE) , 2012, DOI: 10.3991/ijoe.v8i1.1830
Abstract: This paper describes the progress in the development of virtual and remote laboratories at Department of Information Engineering and Process Control, FCFT STU in Bratislava. Article is the overview of technical solutions used for online education purposes. These comprise software technologies, most commonly used in virtual and remote laboratory design at our department, as MATLAB Web Server, Java, C/C++, and Adobe Flash. We have created virtual laboratories as online Web applications, which provide features of mathematical computing and simulations of technological plants. We also describe a technology of remote control laboratory with a real experimental device.
Braess's Paradox for Flows Over Time
Martin Macko,Kate Larson,ubo? Steskal
Computer Science , 2010, DOI: 10.1007/978-3-642-16170-4_23
Abstract: We study the properties of Braess's paradox in the context of the model of congestion games with flow over time introduced by Koch and Skutella. We compare them to the well known properties of Braess's paradox for Wardrop's model of games with static flows. We show that there are networks which do not admit Braess's paradox in Wardrop's model, but which admit it in the model with flow over time. Moreover, there is a topology that admits a much more severe Braess's ratio for this model. Further, despite its symmetry for games with static flow, we show that Braess's paradox is not symmetric for flows over time. We illustrate that there are network topologies which exhibit Braess's paradox, but for which the transpose does not. Finally, we conjecture a necessary and sufficient condition of existence of Braess's paradox in a network, and prove the condition of existence of the paradox either in the network or in its transpose.
Pareto’s optimum in models of general economic equilibrium with the asset market
Popovi? Zoran
Economic Annals , 2007, DOI: 10.2298/eka0773036p
Abstract: A model of the general economic equilibrium of sequential structures includes the asset market, where assets are instruments of sequential income redistribution. The model should explain relative prices of commodities, on one hand, and establish the asset pricing as an instrument of income redistribution, on the other, enabling the analysis of sequential income transfers. This paper mainly researches Pareto’s optimum of a defined mathematical model of the general economic equilibrium in both complete and incomplete asset markets. The existence of the latter partly disables an economic system to transfer income through time sequences properly, which results in equilibrium allocations not reaching Pareto’s optimum. .
Taksisnye zna enija deepri astija v serbskom jazyke
Popovi? Ljudmila
Ju?noslovenski Filolog , 2011, DOI: 10.2298/jfi1167135p
Abstract: (ruski) V dannoj stat’e, ishodja iz koncepcii taksisa, prinadle a ej V. S. Hrakovskomu, predlagaetsja sistemati eskij analiz konstrukcij s deepri astijami v serbskom jazyke. Otdel’no rassmatrivajutsja oslo nennye deepri astijami predlo enija, vyra aju ie otno enija pred estvovanija, odnovremennosti i sledovanija. Vpervye v serbskom jazyke opisyvajutsja konstrukcii, peredaju ie tak nazyvaemoe kontaktnoe i preryvaemoe pred estvovanie - kogda dejstvie, vyra ennoe deepri astiem, neposredstvenno pred estvuet dejstviju, vyra ennomu predikatom ili e dejstvie, sootnesennoe s predikatom, preryvaet pred estvuju ee dejstvie, vyra ennoe deepri astiem, a tak e konstrukcii, ukazyvaju ie na nepolnuju odnovremennost’ dejstvij, vyra ennyh deepri astiem i predikatom. V svjazi s tem, to taksisnye otno enija mogut byt’fonom dlja vyra enija drugih nevremennyh otno enij - pri iny, celi, sledstvija, uslovija, ustupki, obraza dejstvija, v rabote budut rassmotreny primery, illjustriruju ie upotreblenie deepri astij v konstrukcijah tak nazyvaemogo fonovogo taksisa. V rabote tak e budut vyra eny soobra enija po povodu nekotoryh nedostato no vysvetlennyh v nau noj literature voprosov, takih kak pri ina raznoreferentnosti deepri astija i predikata v serbskom jazyke i pr.
Pornography use and closeness with others in women
Popovi? Miodrag
Srpski Arhiv za Celokupno Lekarstvo , 2011, DOI: 10.2298/sarh1106353p
Abstract: Introduction. Closeness/intimacy and pornography are sometimes linked and frequently presented as competing with each other. They have been the subject of some research but many issues in the area remain controversial and indeterminate. Objective. The aim of this pilot study was to establish whether female pornography users and non-users’ ratings in terms of socio-emotional closeness differed, i.e. to examine the association between pornography use and aspects of socio-emotional closeness in a non-clinical sample of females. Methods. Sixty-six females participated in the study. Their actual and ideal socioemotional closeness was measured by the Perceived Interpersonal Closeness Scale/PICS, while their pornography use was examined by the Background and Pornography Use Information Questionnaire. Potential links between the two variables and comparisons with the relevant results obtained by males are presented. Results. The results showed that there were no significant differences between self-reported female pornography users and non-users in terms of total closeness numbers and scores and also in specific socioemotional closeness with the most significant adults in their lives (i.e., partners, closest friends, mothers and fathers). Conclusion. The results confirmed that there were differences between females and males’ approaches to pornography and closeness; females had lower interest in pornography and their use of it had not been associated with higher total closeness numbers and scores. Due to the participant group’s size (N) limitations, this sample was rather used for preliminary investigations that would enable some elementary insight into females’ relevant behaviours. Further investigations of pornography’s complex links with socio-emotional and sexual closeness on larger samples may allow more reliable comparisons between gender and pornography users groups.
Ion B lan, Postwar Vojvodina Writer
Virginia POPOVI
Studii de Stiinta si Cultura , 2011,
Abstract: Romanian literature from Voivodina, conceived more than half century ago is a relatively young literature, but through these years from first written texts on this teritories until the following days it marked true artistic development, esteticaly and towards searching national identity. Starting with 5th decade of the last century in Yugoslav literature writers more and more use ideas of traditonalism and realism in their works. Such Romanian poetry of traditionalism writes one of the most famous writer of the last century in Voivodina, Ion Balan. Entered on line of traditionalism and autochthonism, poetry and prose 50's tried to cover the interwar literary gap and open the door again to Romanian literary word. Now we face a crossroads between the Serbian and Romanian literature. Romanian Poetry of Vojvodina uses first classical methods, traditional and a modern poetic language.
Transcultural Aspects in the Translation Process
Virginia Popovi
Studii de Stiinta si Cultura , 2012,
Abstract: This work deals with the translations of the well known Romanian literary works into Serbian language, as well as with the translations of Serbian works into Romanian language. Before nineteen sixties, Serbian literary circles were not familiar with the greatest literary works of Romanian literature. At the end of twentieth century, there were more and more translations of Romanian works, thus today, Serbian readers have a very rich collection of Romanian literature pieces translated into Serbian. Besides prose, poetry and theatre palys, Romanian literary critics and essays have been translated in recent years. This work deals with belletristic literature from its appearance in Serbia in 1940. until today.
From Autochthon to Postmodern Gastronomy in Vojvodinian Literature
Virginia POPOVI
Studii de Stiinta si Cultura , 2011,
Abstract: From the first poem written in Romanian in Vojvodina territory can meet an influence offolklore in Romanian poetry. This influence started from fifth decade of last century. Even with thearticles regarding relationship between literature and gastronomy were multiplied during the lastyears, transforming into real trend, about traditional and (post)modern gastronomy in VojvodinianLiterature wasn’t wrote at all. Therefore, such paper should bring a deeper incursion in Romanianpoetry from Vojvodina, which, surrounded by Serbian literature and the literature of minoritiescoexisting on this territory, has received a certain foreign influence and in the case of poetry butalso in the case of gastronomy.
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