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Golusin M.,Educons University | Ostojic A.,Novi Management | Latinovic S.,Imes Biogas | Jandric M.,University of Sfax | Ivanovic O.M.,Educons University
Renewable and Sustainable Energy Reviews | Year: 2012

Construction and operation of plants that produce energy from renewable energy sources is the subject for discussion in all the countries that have accepted the sustainable development concept and Kyoto protocol as their own development direction. Enlargement of the renewable energy production is clearly an imperative, but only economically viable construction and operation can result in long-term sustainability, which is initially the goal when deciding upon such investments. In line with this goal, this paper presents the estimation of the economic viability of constructing and operating biogas electricity plant on the farm Vizelj in Serbia. The timeframe for this estimation is from 2011 until 2020. This paper also presents all parameters which are necessary for performing this estimation, respectively, analysis of revenues and expenditures, projection of economic and financial flow, ratio analysis, dynamic and static analysis, and analysis of sensitivity of the project, i.e. impact of the changes in prices and raw material on the overall performance of the project. The observed investment is predicted to be financed from the EBRD's credit line for renewable energy in Western Balkans, while the total investment is estimated at Euro 958,000.00. After the performed economic assessment, the conclusion is that the observed investment in biogas electricity plant is very acceptable and it can serve as a role model for similar investments in the region. © 2011 Elsevier Ltd. All rights reserved.

Popovic E.,Novi Management
Insights and Innovations in Structural Engineering, Mechanics and Computation - Proceedings of the 6th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2016 | Year: 2016

This work deals with the problems caused by very strong vibrations emergence on the large segment gates in the sluices “Staicevo” and “Tomasevac” built in Vojvodina. Without interrupting regular operations on the representative structure of sluice “Tomasevac” author has done the test and the base measuring of intensity of vibrations. The experimental research included determining the level of vibration segment gate structure using effective value of vibration parameters. The author applied time, frequent and modal analyses. The measuring analysis demonstrated the middle segment gate deformation forms on the sluice “Tomasevac” for the first two modes. In this research author compared the results of measuring vibrations on the sluice “Staicevo”` described in his previously published papers and the results of measuring vibrations on the sluice “Tomasevac”. According to these data and everyday work experiences author suggested a few measures to decrease intensity of vibrations of segment gate. © 2016 Taylor & Francis Group, London.

Veljkovic R.,Clinical Center Vojvodina | Protic M.,Clinical Center Vojvodina | Gluhovic A.,Clinical Center Vojvodina | Potic Z.,Novi Management | And 3 more authors.
Journal of the American College of Surgeons | Year: 2010

Background: Information-based scoring systems predictive of outcomes of midline laparotomy are needed; these systems can support surgical decisions with the aim of improving patient outcomes and quality of life, and reducing the risk of secondary surgical procedures. Study Design: All study subjects were followed for a minimum of 6 months after operation. Numerous demographic, clinical, treatment, and outcomes-related perioperative factors were recorded to determine statistical association with the primary end point: incisional hernia development. The first analysis was designed to establish the statistical model (scoring system) for estimating the risk of incisional hernia within 6 months of midline laparotomy. Univariate and multivariate analyses were performed. A simple additive model was constructed using stepwise logistic and linear regression. The second part of the study analysis was validation of the scoring systems developed initially. Results: A logistic linear minimum regression model was developed based on four covariates independently predictive of incisional hernia: Body mass index (BMI) > 24.4kg/m2; fascial suture to incision ratio (SIR) < 4.2; deep surgical site, deep space, or organ infection (SSI); and time to suture removal or complete epithelialization >16 days (TIME). The hernia risk scoring system equation [p(%) = 32(SIR) + 30(SSI) + 9(TIME) + 2(BMI)] provided accurate estimates of incisional hernia according to stratified risk groups based on total score: low (0 to 5 points), 1.0%; moderate (6 to 15 points), 9.7%; increased (16 to 50 points), 30.2%; and markedly increased (>50 points), 73.1%. Conclusions: A statistically valid, straightforward, and clinically useful predictive model was developed for estimating the risk of incisional hernia within 6 months of midline laparotomy. Prospective independent validation of this model appears indicated.

Zelenovic Vasiljevic T.,Public Enterprise Urban | Srdjevic Z.,University of Novi Sad | Bajcetic R.,Novi Management | Vojinovic Miloradov M.,University of Novi Sad
Environmental Management | Year: 2012

The Serbian National Waste Management Strategy for the Period 2010-2019, harmonized with the European Union Directives, mandates new and very strict requirements for landfill sites. To enable analysis of a number of required qualitative and quantitative factors for landfill site selection, the traditional method of site selection must be replaced with a new approach. The combination of GIS and the Analytic Hierarchy Process (AHP) was selected to solve this complex problem. The Srem region in northern Serbia, being one of the most environmentally sensitive areas, was chosen as a case study. Seventeen factors selected as criteria/sub-criteria were recognized as most important, divided into geo-natural, environmental, social and techno-economic factors, and were evaluated by experts from different fields using an AHP extension in Arc GIS. Weighted spatial layers were combined into a landfill suitability map which was then overlapped with four restriction maps, resulting in a final suitability map. According to the results, 82.65% of the territory of Srem is unsuitable for regional landfill siting. The most suitable areas cover 9.14%, suitable areas 5.24%, while areas with low and very low suitability cover 2.21 and 0.76% of the territory, respectively. Based on these findings, five sites close to two large urban agglomerations were suggested as possible locations for a regional landfill site in Srem. However, the final decision will require further field investigation, a public acceptance survey, and consideration of ownership status and price of the land. © 2011 Springer Science+Business Media, LLC.

Srdjevic Z.,University of Novi Sad | Bajcetic R.,Novi Management | Srdjevic B.,University of Novi Sad
Water Resources Management | Year: 2012

This paper proposes an approach for defining the criteria set required for multicriteria decision making. An approach is developed for a specific class of water management problems, and a SWOT/PESTLE analysis is recommended for identifying the internal and external factors that influence a given water system. The factors are grouped into six categories: political, economic/financial, social, technical, legal, and environmental (PESTLE), and separated afterwards according to their positive or negative influence on the system. All factors are filtered by a proposed elimination algorithm to identify the non-inferior factors and declare them as candidates for inclusion into the criteria set. An approach is applied to the real-life problem of how to define the criteria set and enable the selection of the optimal reconstruction solution of a water intake structure within a regional hydro-system in Vojvodina Province, Serbia. To verify the developed approach, an independent expert is invited to asses all factors identified by the SWOT/PESTLE analysis using the analytic hierarchy process (AHP) and to rank factors by order of preference. The outcome is satisfactory because the seven top-ranked factors from AHP completely matched the list of factors derived from the elimination algorithm. © 2012 Springer Science+Business Media B.V.

Savic R.,University of Novi Sad | Belic A.,University of Novi Sad | Pantelic S.,Novi Management
Polish Journal of Environmental Studies | Year: 2013

Our paper presents a comparative review of the properties of sediments from drainage canals in Backa and Banat (two regions in northern Serbia). The drainage canals are important for agriculture and water management in the two regions. On the other hand, these canals are exposed to different point and non-point polluters. The resulting accumulation and increased concentration of undesirable substances in sediments may adversely impact the environment in the canals and their surroundings. Thirty-nine samples of canal sediments were collected in each region. The samples were analyzed for concentrations of macronutrients and heavy metals. The content of nutrients was on average 2 to 2.5 times higher in drainage canal sediments than in the arable soil around the canals. The average concentrations of heavy metals in the sediments were 38.84 and 53.75 mg·kg-1 for Pb; 2.79 and 7.55 mg·kg-1 for Cd; 52.09 and 42.72 mg·kg-1 for Ni; 28.73 and 698.36 mg·kg-1 for Cr; 40.76 and 13.54 mg·kg-1 for As; 60.32 and 52.33 mg·kg-1 for Cu; and 200.10 and 222.94 mg·kg-1 for Zn, for Backa and Banat, respectively. The sediments of studied canals were characterizied by high concentrations of heavy metals, in some of them several times exceeding the allowable maximum concentration. These canals were typically located near large urban areas, directly receiving untreated municipal and industrial waste waters in addition to drainage water. Judging by the number, type and intensity of pollution, the concentrations of nutrients and most of the analyzed heavy metals were higher in the canal sediments from Banat than those from Backa.

Parodi I.,Novi Management
Earthen Architecture: Past, Present and Future - Proceedings of the International Conference on Vernacular Heritage, Sustainability and Earthen Architecture | Year: 2015

Rammed earth is one of the earth construction techniques in Italy. Nevertheless the approach proposed in the Guidelines can be applied to other earthen-architecture technologies too. Nowadays part of the rammed earth heritage is lost due to neglect and to the idea that a new house, made of "performing" contemporary materials, is synonymous with better living and architectural quality. But something is changing: the growing attention of the Public Administration and the ever more pressing environmental problems demand a more sustainable approach to the building process. The Guidelines evolved on the basis of these thoughts. The starting point is the belief that keeping this heritage alive means keeping it inhabited. To make it possible it is necessary to reintroduce earthen heritage into the normal real estate cycle. This step is not automatic since in the last decades, both the knowledge and the technical know-how were lost, due to the interruption in memory. The Guidelines goal is contributing to fill this gap. This paper illustrates the project that led to the development of the Rammed earth restoration guidelines. © 2015 Taylor & Francis Group.

Samardzija J.,PROAGO D.o.o. | Kralj D.,Novi Management
International Conference on Circuits, Systems and Signals - Proceedings | Year: 2010

EFQM is helping to prepare a new generation of business leaders by offering training and development opportunities built on practice-based learning and exchange between organizations. Excellent organizations can operate in different environments, with different stakeholder constituencies, and come in all shapes and sizes but what they do have in common is a mindset based on eight Fundamental Concepts of Excellence according to EFQM. Each concept is a part of sustainable business. Regardless of sector, size, structure or maturity, organisations need to establish an appropriate management framework to be successful. The EFQM Excellence Model is a practical, nonprescriptive framework that enables organisations to: assess where they are on the path to excellence; helping them to understand their key strengths and potential gaps in relation to their stated Vision and Mission as well as to integrate existing and planned initiatives, removing duplication and identifying gaps. Leaders of successful, high-growth companies understand that green innovation is what drives growth, and innovation is achieved by awesome people with a shared relentless growth attitude and shared passion for problem solving and for turning ideas into realities.

Parodi I.,Novi Management
Rammed Earth Conservation - Proceedings of the 1st International Conference on Rammed Earth Conservation, RESTAPIA 2012 | Year: 2012

Novi Ligure (in the province of Alessandria) is a small Italian town in the South Piedmont Region. This area is characterized by an important rammed earth heritage. In recent years the Novi Public Authority decided to preserve and revalue it, defining a specific programme (called Earth Lands-Terre di Terra). The submission of a thematic ecomuseum was another strategy carried out by Novi Ligure in partnership with others local stakeholders. The main interest is focused on promoting and setting up permanent actions of preservation, re-evaluation, training and dissemination, in order to place it in an economic system, strictly correlated to the best territorial exploitation policies. At the same time all these scheduled actions find a reference in regional policies as the Regional Law concerning the conservation of earthen heritage. © 2012 Taylor & Francis Group, London.

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