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Aluminium electrodeposition under novel conditions from AlCl3-urea deep eutectic solvent at room temperature

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Transactions of Nonferrous Metals society of China 2020年第3期30卷 823-834页

作者： vesna scvetkoviĆ Nataša MVUKIĆEVIĆ Niko JOVIĆEVIĆ Jasmina ssTEVANOVIĆ Jovan NJOVIĆEVIĆ Institute of Chemistry Technology and MetallurgyNational InstituteDepartment of ElectrochemistryUniversity of BelgradeBelgradeSerbia Nissan Technical Center North America Inc.39001 Sunrise DriveFarmington HillsMI 48331-3487USA

The electrodeposition of aluminium on glassy carbon and aluminium substrates from AlCl3-urea deep eutectic solvent(DEs) system at near room temperatures was investigated,without additional purification of the chemicals used to prepare the electrolyte and without rigorous control of moisture and oxygen present in the working *** effects of changing temperature,working potential,controlled deposition current density and deposition time on the morphology of deposited aluminium without stirring of the electrolyte were *** potentiostatic and galvanostatic techniques,aluminium was electrodeposited from the deep eutectic solvent(n(AlCl3):n(urea)=1.6:1) onto glassy carbon and aluminium substrates at temperatures ranging from 25 to 50℃.Using sEM,EDs and XRD techniques,substrates were studied and confirmed the presence of aluminium deposits following both potentiostatic and galvanostatic *** shape and size of Al grains deposited depended on the time of deposition and varied in size from nanometers to micrometers and in shape from regular crystal forms to needle-like and flake-like structures.

关键词： aluminium electrodeposition deep eutectic solvent(DEs) AlCl3-urea

Impact of Microstructural and surface Modifications on the Ti-45Nb Alloy’s Response to Bio-Environment

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Acta Metallurgica sinica(English Letters) 2024年第7期37卷 1215-1230页

作者： Ivana Cvijović-Alagić slađana Laketić MilošMomčilović Jovan Ciganović Jelena Bajat vesna Kojić Vinča Institute of Nuclear sciences-National Institute of the Republic of serbia University of BelgradeMike Petrovića Alasa 12-1411000BelgradeSerbia Faculty of Technology and Metallurgy University of BelgradeKarnegijeva 411000BelgradeSerbia Oncology Institute of Vojvodina Faculty of MedicineUniversity of Novi SadPut Doktora Goldmana 4Sremska Kamenica21204Sremska KamenicaSerbia

The Ti-45Nb (mass%) alloy’s corrosive and biocompatible response in simulated physiological conditions was investigated before and after its additional high-pressure torsion (HPT) and laser irradiation processing. The grain size reduction from 2.76 µm to ~ 200 nm and the appearance of laser-induced morphologically altered and highly oxidized surface led to the significant improvement of alloy corrosion resistance and cell–implant interaction. Moreover, an additional increase of the laser pulse energy from 5 to 15 mJ during the alloy irradiation in the air led to an increase in the surface oxygen content from 13.64 to 23.89% accompanied by an increase of excellent cell viability from 127.18 to 134.42%. As a result of the controlled alloy microstructural and surface modifications, the formation of protective bi-modal mixed Ti- and Nb-oxide external scale was enabled. The presence of this surface oxide scale enhanced the alloy’s resistance to corrosion deterioration and simultaneously boosted cell viability and proliferation.

关键词： Ti-45Nb alloy High-pressure torsion Laser surface scanning Corrosion resistance Biocompatible properties

Effect of special types of bread with select herbal components on postprandial glucose levels in diabetic patients

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World Journal of Diabetes 2024年第4期15卷 664-674页

作者： Drasko M Gostiljac srdjan s Popovic vesna Dimitrijevic-sreckovic sasa M Ilic Jelena A Jevtovic Dragan M Nikolic Ivan A soldatovic Clinic for Endocrinology Diabetes and Metabolic DiseasesUniversity Clinical Centre of SerbiaBelgrade 11000Serbia Faculty of Medicine University of BelgradeBelgrade 11000Serbia Clinic for Gastroenterology and Hepatology University Clinical Centre of SerbiaBelgrade 11000Serbia Clinic for Endocrinology Diabetes and Metabolic Diseases-Laboratory for Human Pancreatic Islets CultureUniversity Clinical Centre of SerbiaBelgrade 11000Serbia

BACKGROUND Nutrition recommendations in patients with type 2 diabetes mellitus(T2DM)are to consume rye or integral bread instead of white bread.A positive effect on glucoregulation has been achieved by enriching food with various biologically active substances of herbal origin,so we formulated an herbal mixture that can be used as a supplement for a special type of bread(sTB)to achieve better effects on postprandial glucose and insulin levels in patients with *** To compare organoleptic characteristics and effects of two types of bread on postprandial glucose and insulin levels in T2DM *** This trial included 97 patients with T2DM.A parallel group of 16 healthy subjects was also *** participants were given 50 g of rye bread and the same amount of a sTB with an herbal mixture on 2 consecutive *** blood glucose and insulin levels were compared at the 30^(th),60^(th),90^(th) and 120th min.A questionnaire was used for subjective estimation of the organoleptic and satiety features of the two types of *** Compared to patients who consumed rye bread,significantly lower postprandial blood glucose and insulin concentrations were found in T2DM patients who consumed *** relevant differences were found among the healthy *** estimated organoleptic and satiety characteristics are better for sTB than for rye *** sTB have better effects than rye bread on postprandial glucoregulation in T2DM *** estimated organoleptic and satiety characteristics are better for sTB than for rye ***,sTB can be recommended for nutrition in T2DM patients.

关键词： special types of bread Postprandial glucoregulation Insulin Nutrition Type 2 diabetes mellitus

Theoretical and experimental assessment of a novel method to establish the complete measurement range of the calorimeter and its limit of detection and quantification

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Chinese Journal of Chemical Engineering 2022年第4期35卷 466-473页

作者： vesna Krstic af005 Mining and Metallurgy Institute Bor Zeleni Bulevar 3519210 BorSerbia af010.University of Belgrade Technical Faculty BorVJ 1219210 BorRepublik of Serbia

For determining the accuracy of a calorimeter over the instrument’s entire measuring range,a novel method has been *** this new approach,(a)benzoic acid(C_(6)H_(5)CO_(2)H) as a certified reference material(CRM),(b)siO_(2) and(c)a mixture of CRM benzoic acid and siO_(2) have been *** illustrate the essential difference between 1)the novel analytical method for control of the entire measurement range and 2)the calorimeter calibration,both applications of benzoic acid(BA)have been *** experimental result showed that BA was successfully used to check the whole calorimeter measurement *** results also showed that the same new method was successfully applied to determine the limit of detection and quantification.A new instrument testing process and a new measurement technique have thus been *** this way,the cost of using CRM to control the accuracy of measuring the entire measuring range of the calorimeter,as shown in this paper,is *** requirements of the IsO/IEC 17025:2017 standard are ***/IEC 17025:2017,together with IsO 9001:2015(quality management systems),IsO 14001:2015(relate to environmental protection)and IsO45001:2018(occupational safety),constitute an integrated quality system by which a testing laboratory may also accredit.

关键词： Benzoic acid Certified reference material The limit of detection/quantification Measurement range Quality control Calorimeter Environmental protection

Blue Cap Is Effective and safe for the Treatment of Atopic Dermatitis in Children

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Open Journal of Pediatrics 2024年第3期14卷 609-622页

作者： Mirjana Gajić-Veljić Biljana Marenović Margita Mijušković vesna Reljić Danica Tiodorović Danijela Popović sanja Zorić-Blagojević Milica Vučinić David Marquez-soriano Jovan Lalošević University of Belgrade Faculty of Medicine Department of Dermatology and Venereology University Clinical Center of Serbia Beograd Serbia University of Niš Faculty of Medicine Department of Dermatology and Venereology University Clinical Center of Ni&#353 Ni&#353 Serbia City Institute for skin and Venereal Diseases Beograd Serbia scientific Department Catalysis S.L. Madrid Spain

Background: Atopic dermatitis (AD) is the most common inflammatory skin disease in children. Treatment of AD is based on skin barrier repair and reduction of inflammation. We analyzed the efficacy and safety of activated piroctone olamine (APO)—Blue Cap—in children with AD. Materials and Methods: An open-label interventional clinical study was carried out at three clinical centers in serbia. A total of 58 patients with AD, aged between 3 and 18 years were included and treated with Blue Cap Foam (100 ml;CATALYsIs s.L. Madrid)—Activated Piroctone Olamine—applied twice a day in the affected areas with eczema for 30 days and final assessment at 45 days from baseline. Photographic documentation, clinical evaluation, therapy effectiveness and safety questionnaires were assessed at baseline, 15, 30 and 45 days. Results: Our results demonstrated a significant reduction in signs (erythema, scaling, infiltration, excoriations, xerosis) and symptoms (pruritus) at weeks 2 and 4 of the study. At the end of the study, most patients had moderate (28.6%) to great (62.5%) disappearance of manifestations and moderate (25%) to great (71.4%) skin quality improvement. The effect and tolerability of the therapy were evaluated as very good in 66.1 % and 67.9% and good in about 14.3% and 17.9%, assessed by the investigator and patient, respectively. Three patients experienced a burning sensation at the beginning of the study, the side-effects were resolved as the patients continued applying the foam. After two weeks of cessation of the investigated foam, a significant percentage of patients experienced worsening in the final assessment done by the investigator as well as the participant. In the final assessment, a significantly high percentage (57.1%) of patients had a total reduction of manifestation, and a significant number of participants considered the applied product as treatment success, assessed by the investigator (62.5%) as well as the participants (66.4%). Conclusions: Blue Cap

关键词： Pediatric Dermatology Atopic Dermatitis Piroctone Olamine skin Care

构建研究框架并引导读者理解工程研究生论文摘要

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Chinese Journal of Applied Linguistics 2024年第2期47卷 238-258,365页

作者：维斯娜·博格达诺维奇德拉甘娜·加克诺维萨德大学塞尔维亚

对于研究生而言,撰写论文摘要是一项具有挑战性的任务。这是因为论文摘要不仅需要将整个研究内容精炼地概括成几句话,还必须融入相关的背景知识,以便向学术界清晰地传达研究成果。本研究旨在深入探究工科研究生在面对首次发表论文的摘... 详细信息

对于研究生而言,撰写论文摘要是一项具有挑战性的任务。这是因为论文摘要不仅需要将整个研究内容精炼地概括成几句话,还必须融入相关的背景知识,以便向学术界清晰地传达研究成果。本研究旨在深入探究工科研究生在面对首次发表论文的摘要写作时的应对策略。为达到这一目的,研究者基于一个丰富的学习者语料库,该语料库共计收录了1,746篇摘要,总词数达到117,535个。值得注意的是,这些摘要均由母语为非英语的学生在攻读硕士学位期间,分别使用英语和塞尔维亚语撰写而成。本研究以Hyland的分类法为依据,着重探讨交互式框架标记、交互式参与标记以及元杂名词的应用与影响。经过对塞尔维亚语和英语子语料库中绝对频率、相对频率、统计显著性以及对数可能性的详尽对比分析,可得出结论:学生在塞尔维亚语写作中运用框架标记的频度,显著高于在相同语境下英语写作时的频度。至于参与标记,研究生的摘要显示出非常频繁地使用指令;在两个子语料库中,指令的使用率是框架标记的两倍,而在英语子语料库中,指令的使用率高于塞尔维亚语子语料库。经过严格的定性和定量分析,研究结果和比较揭示了学生在阐述研究目的时所采用的一系列框架标记和元话语名词,以及他们在吸引读者参与研究并进而增强研究可信度时所使用的参与标记所具有的教学意义。

关键词：摘要框架标记参与标记元话语名词研究生写作

An Application of the shark skin Denticle Geometry for Windbreak Fence Design and Fabrication

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Journal of Bionic Engineering 2017年第3期14卷 579-587页

作者： Ivana Bajsanski vesna stojakovic Bojan Tepavcevic Marko Jovanovic Dejan Mitov Department of Architecture Faculty of Technical Sciences University of Novi Sad Trg Dositeja Obradoviea 6 21000 Novi Sad Serbia

Windbreak fences in open and urban areas can be used to effectively reduce the wind velocity. In this paper we examine how the geometrical shape of the windbreak fence can optimally mitigate wind velocity. We propose an approach for windbreak fence design based on a bionic parametric model of the shark skin denticle geometry, which improves the reduction of the wind velocity around and behind the windbreak fences. The generative model was used to estimate improvements by variations in the parameters of the fence panel＇s geometrical shape, inspired by shark skin denticles. The results of the Computational Fluid Dynamics （CFD） analysis indicates that the fence surface inspired by shark skin performs much better than both flat and cor- rugated surfaces. Taking into account the complex geometry of the surface inspired by shark skin denticles, we propose a fab- rication process using an expanded polystyrene foam （EPs） material, created using an industrial robot arm with a hot-wire tool. Creating EPs moulds for the shark skin denticle panels allows for a richer variety material to be used in the final design, leading both to higher efficiency and a more attractive design.

关键词： bioinspiration shark skin denticle windbreak fence design generative models CFD

COMMON FIXED POINT OF GENERALIZED WEAKLY CONTRACTIVE MAPs IN PARTIAL METRIC sPACEs

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Acta Mathematica scientia 2014年第4期34卷 1345-1356页

作者： vesna COJBAIC RAJIC stojan RADENOVIC sunny CHAUHAN Faculty of Economics University of BelgradeKamenicka 611000 BeogradSerbia Faculty of Mechanical Engineering University of BelgradeKraljice Marije 1611 120 BeogradSerbia R. H. Government Postgraduate College Kashipur-244 713 (U.S. Nagar)UttarakhandIndia

In this paper, using the context of complete partial metric spaces, some common fixed point results of maps that satisfy the generalized （ψ, Ф）-weak contractive conditions are obtained. Our results generalize, extend, unify, enrich and complement many existing results in the literature. Example are given showing the validaty of our results.

关键词： Common fixed point lower semi-continuous function weak (ψ, Ф)-contraction partial metric space

Architectural quality of the productive facades integrating photovoltaic and vertical farming systems: survey among experts in singapore

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Frontiers of Architectural Research 2020年第2期9卷 301-318页

作者： Abel Tablada vesna Kosoric Huajing Huang stephen s.Y.Lau Veronika shabunko Department of Architecture School of Design and EnvironmentNational University of SingaporeSingapore Facultad de Arquitectura Technological University of Havana J.A Echeverri´aMarianaoHavana19390Cuba BauLab GmbH 4656 Starrkirch-WilSwitzerland solar Energy Research Institute of singapore(sERIs) Singapore

Buildings could play a critical role in energy and food production while making highdensity cities more *** facades(PFs),as flexible and multi-functional systems integrating photovoltaic(PV)and vertical farming(VF)systems,could contribute to transforming buildings and communities from consumers to *** study analyses the architectural quality of the developed PF concept drawing on the findings of a web-survey conducted among experts e building professionals in *** developed design variants are compared with regards to key design aspects such as facade aesthetics,view from the inside,materialisation,ease of operation,functionality and overall architectural *** study also compares and discusses the results of the web-survey with the results of a previously conducted door-to-door survey among the potential users-residents of the Housing&Development Board(HDB)*** findings confirm an overall acceptance of the PF concept and reveal a need for synergetic collaboration between architects/designers and other building *** on the defined PF design framework and the results of the two surveys,a series of recommendations and improved PF prototypes are proposed for further assessment and implementation in order to foster their scalability from buildings into communities and cities.

关键词： Facade systems Building integrated photovoltaic(BIPV) solar shading devices Vertical farming(VF) sustainable buildings survey