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Journal of Energy and Power Engineering 2024年第1期18卷 18-28页

作者： branislav Gavrilovic Academy of Technical and Art Applied Studies Belgrade Railway College BelgradeSerbia

In the paper,the Matlab-Simulink model of simulation of operation of theŽS 413/417 series EMU(electric multiple unit)in traction and braking mode is exposed where changes are observed:stator currents of three-phase traction motors,traction electric motor speeds and EMU,electromagnetic torque on the rotor shaft of the traction electric motor and DC(direct current)bus *** model allowed review of the listed parameters for:different allowed values of contact network voltage and total voltage distortion at the place of connection of the EMU to the contact network,different mechanical loads of EMU and traction electric motor and different train speeds and rotation of traction electric *** conclusions were made through the analysis of the simulation results obtained.

关键词： Simulations EMU Serbian railways

Investigation of chlorinated phenols sorption mechanisms on different layers of the Danube alluvial sediment

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Journal of Environmental Sciences 2020年第12期32卷 134-142页

作者： Tamara Apostolovic Jelena Trickovic Marijana Kragulj Isakovski branislav Jovic Snežana Maletic Aleksandra Tubic Jasmina Agbaba University of Novi Sad Faculty of SciencesDepartment of ChemistryBiochemistry and Environmental ProtectionTrg Dositeja Obradovica 3Novi SadSerbia

The characteristics of the Danube river alluvial sediment are of great importance in assessing the risk for transport of pollutants to drinking water sources. Characterization of the sediment column layers has shown that the alluvial sediment, sampled near the city of Novi Sad, is a mesoporous sandy material with certain differences in the properties of individual layers. In order to investigate the sorption mechanisms of four chlorinated phenols(CPs) on the alluvial deposit, static sorption experiments were performed at pH 4, 7 and 10. The results of sorption experiments, confirmed by principal components analysis sugest different mechanisms govern the sorption process at different p H conditions. This can be attributed to the molecular characteristics of CPs, geosorbent properties and to variations in the surface charge of the sorbent at different p H conditions.

关键词： Sorption mechanisms Chlorinated phenols Alluvial sediment Principal component analysis

Whither the United Nations at the Start of the 21st Century:An Institution for Changing or Extending the Old Global Order

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国际经济法学刊 2008年第2期 15-32页

作者： branislav Gosovic 不详

Professor An Chen has asked me to address the topic of'The strong and the weak in the UN:the South’s collective struggle to change the world order'.Following his wish,I have framed my presentation around the issue of North-South relations and the continuing divisions that separate developed and developing countries in the United Nations.I will be looking

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Dark Matter and Dark Energy from Lattice Model of Universe

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Journal of High Energy Physics, Gravitation and Cosmology 2024年第3期10卷 1045-1053页

作者： branislav Majerník Faculty of Mathematics Physics and Informatics Comenius University Bratislava Slovakia

The article considers a conceptual universe model as a periodic lattice (network) with nodes defined by the wave function in a background-independent Hamiltonian based on their relations and interactions. This model gives rise to energy bands, similar to those in semiconductor solid-state models. In this context, valence band holes are described as dark matter particles with a heavy effective mass. The conducting band, with a spontaneously symmetry-breaking energy profile, contains particles with several times lighter effective mass, which can represent luminous matter. Some possible analogies with solid-state physics, such as the comparison between dark and luminous matter, are discussed. Additionally, tiny dark energy, as intrinsic lattice Casimir energy, is calculated for a lattice with a large number of lattice nodes.

关键词： Dark Energy Dark Matter Lattice Universe Model

Marketing in the Function of Promotion of Tourism and Hunting Tourism Potentials in Rural Regions

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Journal of Environmental Science and Engineering(B) 2012年第6期1卷 741-747页

作者： branislav Zivkovic The Faculty of Management in Zajecar Megatrend University Zajecar 19000 Serbia

This paper presents the importance of the development of Serbian rural regions, and analyzes their marketing management potentials. Thus the paper aims to examine rural tourism and hunting tourism in particular in order to evaluate their development as a lucrative type of investment, while considering the including promotional activities. Certain disadvantages and problems that Serbian hunting tourism has been facing as well as the directions for their solution are addressed in the paper.

关键词： Rural tourism hunting tourism marketing management tourism promotion.

Study on spiral winding swimming motion control of a slender legless creature model

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High Technology Letters 2021年第4期27卷 415-421页

作者： Lu Zhenli Ma Zhipeng Marko Pencic Maja Cavic Borovac branislav Roumiana Ilieva Bojan Nemec Marjan Mernik School of Electrical Engineering and Automation Changshu Institute of TechnologyChangshu 215500P.R.China School of Information and Control Engineering China University of Mining and TechnologyXuzhou 221116P.R.China Faculty of Technical Sciences University of Novi SadNovi Sad 621000Serbia Faculty of Management Technical University of SofiaSofia 1000Bulgaria Department of Automatics Biocybernetics and RoboticsJožef Stefan InstituteLjubljana 1000Slovenia Faculty of Electrical Engineering and Computer Science University of MariborMaribor 462000Slovenia

Through the observation and analysis of the motion trajectory of spiral winding motion for slender legless biological creatures in water,V-REP software is adopted to build a dynamic simulator to study on the mechanism of spiral winding swimming(SWS)*** using the output of spiral function(SF),the dynamic simulation model of slender legless creature(SLC)realizes the SWS motion in *** corresponding experiments under the control of different bending angle of SF to control the dynamic model are also carried out to analyze the water performance of SWS in still *** with the output of two different bending angles of the spiral function,the dynamic model can be used to realize SWS and up/down *** work provides technical reserve and experimental platform for the corresponding study in related fields.

关键词： V-REP spiral winding swimming(SWS) motion control slender legless creature(SLC)

Auxiliary Software for Defining the Parameters of the Structural Organization of a Complex System

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Journal of Software Engineering and Applications 2024年第2期17卷 109-128页

作者： branislav M. Savic Department of Thermal Power Engineering Faculty of Mechanical Engineering University of Belgrade Belgrade Serbia

The developed auxiliary software serves to simplify, standardize and facilitate the software loading of the structural organization of a complex technological system, as well as its further manipulation within the process of solving the considered technological system. Its help can be especially useful in the case of a complex structural organization of a technological system with a large number of different functional elements grouped into several technological subsystems. This paper presents the results of its application for a special complex technological system related to the reference steam block for the combined production of heat and electricity.

关键词： Complex System Structural Organization Auxiliary Software Parameters

Synthesis and characterization of BaTiO_3/α-Fe_2O_3 core/shell structure

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Journal of Advanced Ceramics 2019年第1期8卷 133-147页

作者： Suzana FILIPOVI? Vera P.PAVLOVI? Miodrag MITRI? Steva LEVI? Neboj?a MITROVI? Aleksa MARI?I? branislav VLAHOVI? Vladimir B.PAVLOVI? Institute of Technical Sciences of Serbian Academy of Sciences and Arts Faculty of Mechanical Engineering University of Belgrade "Vin?a" Institute of Nuclear Sciences University of Belgrade Faculty of Agriculture University of Belgrade Faculty of Technical Sciences ?a?ak University of Kragujevac North Carolina Central University NASA University Research Center for Aerospace Device Research and Education and NSF Center of Research Excellence in Science and Technology Computational Center for Fundamental and Applied Science and Education

Multiferroic materials attracted a lot of attention in recent years because of their significant scientific interest and technological applications. The multiferroic core/shell powders have a better connectivity between the phases, resulting in superior dielectric and magneto electric properties. In this study, the influence of preparation condition on structure and properties of BaTiO_3/α-Fe_2 O_3 core/shell composite materials was examined. The five samples were obtained by varying synthesis conditions, such as synthesized method(co-precipitation and sonochemical method) and pH values of solution. XRD and Raman spectroscopy analyses were performed in order to determine phase composition and structural changes within samples. Morphology modifications were examined by SEM and EDS analyses. Finally, effect of structural and microstructural changes on magnetic and electrical properties was detected and explained.

关键词： ceramics electronic materials magnetic materials Raman spectroscopy X-ray diffraction(XRD) ferroelectricity

Role of total pancreatectomy in the treatment of paraduodenal pancreatitis:A case report

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World Journal of Gastrointestinal Surgery 2019年第6期11卷 296-302页

作者： Danko Mikulic Tomislav Bubalo Anna Mrzljak Anita Skrtic Stipislav Jadrijevic Tajana Filipec Kanizaj branislav Kocman Division of Abdominal Surgery and Organ Transplantation Department of Surgery University Hospital Merkur Division of Gastroenterology Department of Internal Medicine University of Zagreb School of Medicine University Hospital Merkur Department of Pathology and Cytology University of Zagreb School of Medicine University Hospital Merkur

BACKGROUND Paraduodenal pancreatitis(PP)is a rare form of chronic pancreatitis presenting with symptoms of duodenal *** treatment is often unsuccessful and pancreaticoduodenectomy is the preferred surgical approach.A mini review of the outcomes of surgical therapy for PP shows that the results of pancreaticoduodenectomy are predominantly *** SUMMARY In our case report of PP,we describe an unusual course first presenting with the symptoms of chronic pancreatitis and a pseudocyst of the pancreatic tail.A pseudocystojejunostomy was performed and the late postoperative course was complicated with the symptoms of duodenal *** laparotomy,PP was found and the patient was treated with a total *** postoperative course was uneventful and good weight gain with resolution of pain was demonstrated at follow up *** Surgery is currently the optimal treatment option for *** is also the best diagnostic tool in distinguishing between pancreatitis and pancreatic adenocarcinoma.

关键词： Paraduodenal pancreatitis Groove pancreatitis Chronic pancreatitis Total pancreatectomy Case report

Comparison of two nutritional assessment methods in gastroenterology patients

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World Journal of Gastroenterology 2010年第16期16卷 1999-2004页

作者： Branka F Filipovi Milan Gaji Nikola Milini branislav Milovanovi branislav R Filipovi Mirjana Cvetkovi Nela ibali Department of Gastroenterohepatology Clinical and Hospital Center "Bezanijska Kosa" School of Medicine Institute for Medical Statistics Faculty of Cardiology School of Medicine Laboratory for Neurocardiology Clinical and Hospital Center "Bezanijska Kosa" Institute of Anatomy "Niko Miljanic" School of Medicine Biochemical Laboratory Clinical and Hospital Center "Bezanijska Kosa"

AIM:To investigate and compare efficacy and differences in the nutritional status evaluation of gastroenterology patients by application of two methods:subjective global assessment(SGA) and nutritional risk index(NRI).METHODS:The investigation was performed on 299 hospitalized patients,aged 18-84 years(average life span 55.57 ± 12.84),with different gastrointe-stinal pathology,admitted to the Department of Gastroenterohepatology,Clinical and Hospital Center "Bezanijska Kosa" during a period of 180 *** the patients,after being informed in detail about the study and signing a written consent,underwent nutritional status analysis,which included two different nutritional indices:SGA and NRI,anthropometric parameters,bioelectrical impedance analysis,and biochemical markers,within 24 h of ***:In our sample of 299 hospitalized patients,global malnutrition prevalence upon admission varied from 45.7% as assessed by the SGA to 63.9% by *** applied methods required different parameters for an adequate approach:glucose level(5.68 ± 1.06 mmol/L vs 4.83 ± 1.14 mmol/L,F = 10.63,P = 0.001);body mass index(26.03 ± 4.53 kg/m2 vs 18.17 ± 1.52 kg/m2,F = 58.36,P < 0.001);total body water(42.62 ± 7.98 kg vs 36.22 ± 9.32 kg,F = 7.95,P = 0.005);basal metabolic rate(1625.14 ± 304.91 kcal vs 1344.62 ± 219.08 kcal,F = 9.06,P = 0.003) were very important for SGA,and lymphocyte count was relevant for NRI:25.56% ± 8.94% vs 21.77% ± 10.08%,F = 11.55,P = *** number of malnourished patients rose with the length of hospital stay according to both nutritional *** discriminative function analysis(DFA) delineated the following parameters as important for prediction of nutritional status according to SGA assessment:concentration of albumins,level of proteins,SGA score and body *** DFA extracted MAMC,glucose level and NRI scores were variables of importance for the prediction of whether admitted patients would be classif ied as well or ***:SGA

关键词： Nutritional status Subjective global assessment Nutritional risk index Comparison