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Search Results: 1 - 10 of 1823 matches for " Ivanovi?-?ekularac Jelena "
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Impacts of traditional architecture on the use of wood as an element of facade covering in Serbian contemporary architecture
Ivanovi?-?ekularac Jelena,ekularac Nenad
Spatium , 2011, DOI: 10.2298/spat1124057i
Abstract: The world trend of re-use of wood and wood products as materials for construction and covering of architectural structures is present not only because of the need to meet the aesthetic, artistic and formal requirements or to seek inspiration in the return to the tradition and nature, but also because of its ecological, economic and energetic feasibility. Furthermore, the use of wood fits into contemporary trends of sustainable development and application of modern technical and technological solutions in the production of materials, in order to maintain a connection to nature, environment and tradition. In this study the author focuses on wood and wood products as an element of facade covering on buildings in our country, in order to extend knowledge about possibilities and limitations of their use and create a base for their greater and correct application. The subject of this research is to examine the application of wood and wood products as an element covering the exterior in combination with other materials applied in our traditional and contemporary homes with the emphasis on functional, representational art and the various possibilities of wood. In this study all the factors that affect the application of wood and wood products have been analyzed and the conclusions have been drawn about the manner of their implementation and the types of wood and wood products protection. The development of modern technological solutions in wood processing led to the production of composite materials based on wood that are highly resistant, stable and much longer lasting than wood. Those materials have maintained in an aesthetic sense all the characteristics of wood that make it unique and inimitable. This is why modern facade coating based on wood should be applied as a facade covering in the exterior of modern architectural buildings in Serbia, and the use wood reduced to a minimum.
Specific problems of media facade design
?iki?-Tovarovi? Jasna,ekularac Nenad,Ivanovi?-?ekularac Jelena
Facta Universitatis Series : Architecture and Civil Engineering , 2011, DOI: 10.2298/fuace1101193c
Abstract: During the last years we have been facing a growing need of involving architects into processes of modern city medialization. Transposing contemporary media logic into architecture must be accompanied by qualitative answers within architectural theory and practice. The field of media facade is interdisciplinary - not only does it involve research within architecture and urbanism, but also within some border areas of technology, urban design, art, culture, media and marketing. Media facade design process involves analyses of some specific design aspects.
Folded structures in modern architecture
ekularac Nenad,Ivanovi?-?ekularac Jelena,?iki?-Tovarovi? Jasna
Facta Universitatis Series : Architecture and Civil Engineering , 2012, DOI: 10.2298/fuace1201001s
Abstract: Folded structures are three-dimensional structures - spatial structures and they belong to the structural systems. The term folded structure defines a folded form of construction, including structures derived from elements which form a folded structure by their mutual relationship in space. For very long time this type of construction has been realized in practice only in of reinforced concrete and made on site, which conditioned the use of a very complicated shell. Development of prefabricated building led to improvements of this type of construction so that the folded structures could be derived by assembly of prefabricated elements and their relationship - monolithization on site. Development of the research of folded structures, starting from their earliest days to today, followed the innovations and latest developments in terms of applied materials and methods of connection. The tendency for the cost effective and quicker construction pushed the folded structures made in reinforced concrete, and led to the construction realized in wood, steel and other modern materials that eventually experienced expansion.
Some measures for soil regulation in Belgrade peri-urban zone
Spatium , 2008, DOI: 10.2298/spat0818068m
Abstract: The development of controlled and planned construction of peri-urban areas in Belgrade and Serbia did not exist in the last decades. Depending on different factors, urban area of Belgrade sprawles on fertile agricultural soil, often causing the accelerated or progressive changes in agricultural soil use. Evidently, that kind of city development is not sustainable from the viewpoint of natural resources protection (agricultural soil protection in the first place), nor from the viewpoint of entire environment protection. This paper analyses functional and environmental measures for agricultural soil use regulation in Belgrade region. Also, paper looks into the issues of concern for substantiation of means for soil regulation and protection in Serbia, especially in Belgrade, through analysis world's and domestic soil regulatives and new EU guidelines regarding sustainable soil use and urban development. The attention is drawn to protect agricultural hinterland of Belgrade region by basic planning arrangements. .
Regional differences between rural areas of Serbia in population aging and agricultural activities: Case studies of the In ija and Knja evac municipalities
Panti? Marijana,ivanovi?-Miljkovi? Jelena
Spatium , 2010, DOI: 10.2298/spat1022029p
Abstract: As one of the signs of demographic change, population aging influences various spatial categories: economic activities, social features, land-use, perspectives for future development and more. Even though the process is indicative on a national level, there are significant differences among geographically and functionally distinctive regions. Based on considerable regional differences in the development of Serbia, this paper analyses the key problems of rural areas related to the interdependences of population aging and agricultural activities. Research on aging processes, changes in agricultural activities and their features is based here on the examples of two case studies. The In ija and Knja evac Municipalities have been chosen to represent geographically different regions - lowland and mountainous. This study uses both quantitative and qualitative approaches in order to achieve a better understanding of the situation. Statistical data were used to illustrate processes of aging and agriculture where data from two census years indicate a trend of changes. Interviews conducted with representatives of local government, entrepreneurs and local citizens from the villages are the source of information for quantitative analysis. Population aging and agriculture are examined separately, followed by an illustration of their interdependences.
Genetic variability of maize pathogens in Serbia
Stankovi? Slavica,Levi? Jelena,Ivanovi? Dragica
Genetika , 2007, DOI: 10.2298/gensr0702227s
Abstract: Variability of some maize pathogens was identified in the last 50 years of research in Serbia, mostly by their cultural characteristics and susceptibility of test genotypes and only in some cases by determination of mating types, vegetative compatibility or biochemical methods. Although more advanced methods that can determine within population variability at the molecular level were developed, they are still not applied in research in Serbia. The highest variability was determined for maize leaf pathogens - Exserohilum turcicum (Pass.) Leonard & Suggs (2 races) and Bipolaris zeicola (Stout) Shoemaker (2 races), although this variability is significantly lower than the variability of the same pathogens found in the world. Researches conducted with the aim to determine mating types and vegetative compatibility of the Fusarium species, a maize root and stalk pathogen, indicated their high variability in Serbia. Considering the pathogen ability to adapt easily and quickly to new genotypes, agro-ecological conditions and crop practice, a constant surveillance of parasite divergence and epidemiology is necessary in order to avoid detrimental consequences on maize yield and quality.
Determination of the diffusion coefficient of some highly toxic organic substances by using a diffusion tube CA Hemijska industrija
Basti? Jelena,Skala Dejan U.,Ivanovi? Slavica
Hemijska Industrija , 2003, DOI: 10.2298/hemind0301009b
Abstract: The determination of specific characteristics of materials commonly used in the preparation of cloths for the protection of the human body, lungs and other human organs, based on the principles of the effective adsorption of highly toxic organic vapors initially requires the development of specific and reliable techniques for the preparation of a gas stream with the relevant highly toxic organic substances. The dynamic method, one of the techniques commonly used for material characterization, is based on the procedure of determining the concentration of different substances in the gas stream at the inlet and after passing through a specific thin layer of the adsorption material (outlet). Therefore, the generation of a gas phase containing highly toxic organic substances in a defined quantity during a specific time interval, is the requirement that must previously be fulfilled before using the dynamic method for testing specific materials for protection of the human body. Usually, a dynamic method of determining the quality of cloths prepared with specific adsorbents requires a relatively low volumetric flow rate of the gas phase containing the test substance which may be achieved by using a diffusion tube (DT) as the standard equipment for the generation of test substances. A very wide range of concentrations of the test substances in a specific gas phase (inert, air) can be obtained by varying the working conditions (temperature, pressure, gas flow rate) and the geometrical size of the diffusion tube, taking into account that the concentration of toxic substances, is determined as the ratio of their diffusion rate and from the DT and the carrier gas flow rate. The diffusion rate of the test substances from the DT is caused by the concentration gradient between the partial pressure of the saturated vapor at one end of the DT capillary and the partial pressure at the outlet of the diffusion tube according to Fick's law. The mass rate of the generated test substances from the DT is constant for constant conditions (temperature and pressure) in the reservoir of the DT On the basis of a detailed theoretical calculation such a rate (R) may be defined by the equation: R = 16.624 DM(P/T)(A/L)log [P/(P- pv)l, mg/min where: D - the diffusion coefficient, cm/s; M - the molar mass of the test substance, g/mol; P - the pressure in the DT kPa; pv - the vapor pressure of the test substance, kPa; A - the cross sectional area of the capillary of the DT cm2: L - the length of the capillary of the DT cm; T - the temperature, K. A procedure for the constant isothermal vap
On advantage of seeing text and hearing speech
ivanoviJelena,Filipovi?-?ur?evi? Du?ica
Psihologija , 2011, DOI: 10.2298/psi1101061z
Abstract: The aim of this study was to examine the effect of congruence between the sensory modality through which a concept can be experienced and the modality through which the word denoting that concept is perceived during word recognition. Words denoting concepts that can be experienced visually (e.g. “color”) and words denoting concepts that can be experienced auditorily (e.g. “noise”) were presented both visually and auditorily. We observed shorter processing latencies when there was a match between the modality through which a concept could be experienced and the modality through which a word denoting that concept was presented. In visual lexical decision task, “color” was recognized faster than “noise”, whereas in auditory lexical decision task, “noise” was recognized faster than “color”. The obtained pattern of results can not be accounted for by exclusive amodal theories, whereas it can be easily integrated in theories based on perceptual representations.
Granulocyte-stimulating activity of the anticoagulant warfarin in rats
Kataranovski Milena,ivanoviJelena,Vrankovi? Jelena,Mirkov Ivana
Archives of Biological Sciences , 2007, DOI: 10.2298/abs0704053k
Land use planning for sustainable development of peri-urban zones
ivanovi?-Miljkovi? Jelena,Crn?evi? Tijana,Mari? Igor
Spatium , 2012, DOI: 10.2298/spat1228015z
Abstract: Taking into consideration that growth of urban population has impacts on land use and that managing urban population change is one of the most important contemporary challenges, this paper deals with the sustainable development of peri-urban zones which represent important an environment where employment opportunities are developed and resources exploited (particularly agricultural resources) and environment where important recreational and leisure activities could be pursued. Within the review of current concepts and planning practices, the concepts of multifunctional agriculture and multifunctional landscapes in peri-urban zones are pointed out, as well as EU Developing Periurban Projects. The paper particularly focuses on the current situation in Serbia, where there is no specific legal basis for the planning of peri-urban areas, although there are positive examples of strategies, regulations and planning documents which treat agriculture and greenery in peri-urban zones in a sustainable manner.
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