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Non-thermal atmospheric-pressure positive pulsating corona discharge in degradation of textile dye Reactive Blue 19 enhanced by Bi_(2)O_(3) catalyst

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Plasma Science and Technology 2024年第2期26卷 104-113页

作者： Milica PETROVIC Dragan RADIVOJEVIC sasa rancev Nena VELINOV Milos KOSTIC Danijela BOJIC Aleksandar BOJIC Department of Chemistry Faculty of Sciences and MathematicsUniversity of NisNis 18000Serbia Department of Physics Faculty of Sciences and MathematicsUniversity of NisNis 18000Serbia

In this work,monoclinic Bi_(2)O_(3) was applied for the first time,to the best of our knowledge,as a catalyst in the process of dye degradation by a non-thermal atmospheric-pressure positive pulsating corona *** research focused on the interaction of the plasma-generated species and the catalyst,as well as the role of the catalyst in the degradation *** decomposition of the anthraquinone reactive dye Reactive Blue 19(RB 19) was performed in a selfmade reactor ***_(2)O_(3) was prepared by electrodeposition followed by thermal treatment,and characterized by x-ray diffraction,scanning electron microscopy and energy-dispersive xray *** was observed that the catalyst promoted decomposition of plasma-generated H_(2)O_(2) into ·OH radicals,the principal dye-degrading reagent,which further attacked the dye *** catalyst improved the decolorization rate by 2.5 times,the energy yield by 93.4%and total organic carbon removal by 7.1%.Excitation of the catalyst mostly occurred through strikes by plasma-generated reactive ions and radical species from the air,accelerated by the electric field,as well as by fast electrons with an energy of up to 15 eV generated by the streamers reaching the liquid *** strikes transferred the energy to the catalyst and created the electrons and holes,which further reacted with H_(2)O_(2) and water,producing ·OH *** was indentified as the primary role of the catalyst in this *** reactions followed pseudo first-order *** of H_(2)O_(2) and the dye degradation rate increased with increase in the input *** optimal catalyst dose was 500 mg·dm^(-3).The decolorization rate was a little lower in river water compared with that in deionized water due to the side reactions of ·OH radicals with organic matter and inorganic ions dissolved in the river water.

关键词： corona RB 19 Bi_(2)O_(3) catalyst degradation

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Applying the Different Statistical Tests in Analysis of Electrical Breakdown Mechanisms in Nitrogen Filled Gas Diode

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Plasma Science and Technology 2016年第10期18卷 978-986页

作者： Cedomir A. MALUCKOV sasa A. rancev Miodrag K. RADOVIC Technical Faculty in Bor University of Belgrade Vojske Jugoslavije 12 19210 Bor Serbia Faculty of Science and Mathematics University of Nis Visegrdska 33 18000 Nis Serbia

This paper presents the results of our investigations of breakdown mechanisms, as well as a description of their influence on the distributions of time delay distributions, for a gas tube filled with nitrogen at 4 mbar. The values of the time delay are measured for different voitages, and the values of the relaxation times and their distributions and probability plots are analyzed. The obtained density distributions have Gaussian distributions and exponential distributions for different values of relaxation times （Gaussian for small values and exponential for large values of relaxation time）. It is shown that for middle values of relaxation time the delay distributions have a shape between Caussian and exponential distributions, which is a result of the different influences of electrical breakdown.

关键词： electrical breakdown time delay density distributions probability plots,nitrogen

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Prototype of highly efficient liquid electrode pulsating corona plasma reactor for degradation of organics in water

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Plasma Science and Technology 2019年第12期21卷 67-77页

作者： sasa rancev Milica PETROVIC Dragan RADIVOJEVIC Aleksandar BOJIC cedomir MALUCKOV Miodrag RADOVIC University of Nis Faculty of Science and MathematicsDepartment of PhysicsVisegaradska 3318000NisSerbia University of Nis Faculty of Science and MathematicsDepartment of ChemistryVisegradska 3318000NisSerbia University of Belgrade Technical Faculty in BorDepartment for Inorganic Chemical TechnologyVojske Jugoslavije 1219210 BorSerbia

Prototype of atmospheric pressure non-thermal corona plasma reactor, developed for degradation of organics in water, operates at significantly higher frequency than other reactors for that purpose, and without sparks. Its construction provides the umbrella shaped, sustained pulsating corona discharge, with defined discharge oscillations on a given pulse frequency above the water surface. Dye degradation rate decreases with the decrease of discharge current density. Plasmaformed H2O2 is consumed in dye degradation. The energy yield of dye degradation is 2.45 g k Wh^-1 for 50 ppm solution, which is higher than in other publications for comparable experimental conditions.

关键词： corona pulsating frequency degradation

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Significance of balloon aortic valvuloplasty as palliative procedure for symptom benefit in patients with severe aortic stenosis

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Journal of Geriatric Cardiology 2024年第3期21卷 374-378页

作者： Jovica Banovic Vladimir Djuric Vojislav Vuksinovic sasa Loncar Department of Internal Medicine/Prijedor Republic of SrpskaBosnia and Herzegovina University Clinical Centre of Republic of Srpska Cardiology ClinicBanja LukaRepublic of SrpskaBosnia and Herzegovina

Aortic stenosis(AS)stands out as the most prevalent individual valvular defect *** onset and progression of AS mirror an active process akin to atherosclerosis,and the traditional triad of symptoms includes chest pain,breathlessness,and loss of *** takes a significant downturn when symptoms manifest,with mortality reaching approximately 50%-85% within the subsequent 5 years after symptom onset.

关键词： balloon stenosis mortality

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Coated sodium butyrate ameliorates high‑energy and low‑protein diet induced hepatic dysfunction via modulating mitochondrial dynamics, autophagy and apoptosis in laying hens

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Journal of Animal Science and Biotechnology 2024年第3期15卷 1190-1206页

作者： sasa Miao Tianming Mu Ru Li Yan Li Wenyan Zhao Jiankui Li Xinyang Dong Xiaoting Zou Key Laboratory of Animal Feed and Nutrition of Zhejiang Province Key Laboratory of Animal Nutrition and Feed Science(Eastern of China)Ministry of Agriculture and Rural AffairsThe Key Laboratory of Molecular Animal NutritionMinistry of EducationCollege of Animal SciencesZhejiang UniversityHangzhou 310058China.

Background Fatty liver hemorrhagic syndrome(FLHS),a fatty liver disease in laying hens,poses a grave threat to the layer industry,stemming from its ability to trigger an alarming plummet in egg production and usher in acute mortality among laying *** evidence suggests that the onset and progression of fatty liver was closely related to mitochondria *** butyrate was demonstrated to modulate hepatic lipid metabolism,alle-viate oxidative stress and improve mitochondrial dysfunction in vitro and mice ***,there is limited existing research on coated sodium butyrate(CSB)to prevent FLHS in laying hens,and whether and how CSB exerts the anti-FLHS effect still needs to be *** this experiment,the FLHS model was induced by administering a high-energy low-protein(HELP)diet in laying *** objective was to investigate the effects of CSB on alleviating FLHS with a focus on the role of CSB in modulating mitochondrial *** A total of 288 healthy 28-week-old Huafeng laying hens were arbitrarily allocated into 4 groups with 6 replicates each,namely,the CON group(normal diet),HELP group(HELP diet),CH500 group(500 mg/kg CSB added to HELP diet)and CH750 group(750 mg/kg CSB added to HELP diet).The duration of the trial encompassed a period of 10 *** The result revealed that CSB ameliorated the HELP-induced FLHS by improving hepatic steatosis and patho-logical damage,reducing the gene levels of fatty acid synthesis,and promoting the mRNA levels of key enzymes of fatty acid *** reduced oxidative stress induced by the HELP diet,upregulated the activity of GSH-Px and SOD,and decreased the content of MDA and *** also mitigated the HELP diet-induced inflammatory response by blocking TNF-α,IL-1β,and F4/*** addition,dietary CSB supplementation attenuated HELP-induced activation of the mitochondrial unfolded protein response(UPRmt),mitochondrial damage,and decline of ATPase *** diet decreased th

关键词： Autophagy Coated sodium butyrate Laying hens Lipid metabolism Mitochondria

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The effect of reactive plasticizer on viscoelastic and mechanical properties of solid rocket propellants based on different types of HTPB resin

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Defence Technology（防务技术） 2024年第3期33卷 66-77页

作者： Tihomir Kovacevic Slavko Mijatov Jelena Grzetic Suzana Cakic Bojana Fidanovski sasa Brzic Military Technical Institute Ministry of DefenceRatka Resanovica 1BelgradeSerbia Faculty of Technology University of NisBulevar osloboCenja 124LeskovacSerbia

Conventional plasticizers deteriorate mechanical and viscoelastic properties of the propellants due to their migration upon aging and long-term storage,which affects reliability and safety properties during *** address this issue,conventional plasticizer,dioctyl adipate(DOA),is replaced by reactive one,castor oil(CO).In addition,three different types of HTPB were used to obtain propellants with designed viscoelastic and mechanical *** CO increased propellants viscosity,without a significant impact on the propellant processability,regardless to the type of ***,mechanical properties were different depending on the type of resin,which were further analyzed by gel permeation chromatography(GPC).Addition of CO formed a denser polymer network and shifted T_(g) to higher values,compared to the compositions with *** tensile strength of CO-containing propellants was lower at +20℃ and +50℃ compared to the reference compositions,while the strain at maximum load and strain at break were significantly increased with pronounced plastic deformation,especially for samples at -30℃.The inclusion of CO in the propellants composition gives more room for adjusting a wide range of mechanical properties.

关键词： HTPB-based composite propellants Castor oil Reactive plasticizer Gel permeation chromatography Sol-gel analysis Mechanical and viscoelastic properties

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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

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Fine mapping and characterization of stripe rust resistance gene YrAYH in near-isogenic lines derived from a cross involving wheat landrace Anyuehong

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The Crop Journal 2024年第3期12卷 826-835页

作者： Li Long Jue Li Linyu Huang Huiling Jin Fangnian Guan Haipeng Zhang sasa Zhao Hao Li Zhien Pu Wei Li Qiantao Jiang Yuming Wei Jian Ma Houyang Kang Shoufen Dai Pengfei Qi Qiang Xu Mei Deng Youliang Zheng Yunfeng Jiang Matthew James Moscou Guoyue Chen State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Sichuan Agricultural UniversityChengdu 611130SichuanChina Triticeae Research Institute Sichuan Agricultural UniversityChengdu 611130SichuanChina College of Resources Sichuan Agricultural UniversityChengdu 611130SichuanChina The Sainsbury Laboratory Norwich Research ParkNorwich NR47UHEnglandUK United States Department of Agriculture-Agricultural Research Service Cereal Disease LaboratorySt.PaulMN 55108USA

Stripe rust,caused by Puccinia striiformis ***(Pst),is a devastating disease in wheat *** and characterizing new resistance genes/QTL is crucial for wheat breeding *** this study,we fine-mapped and characterized a stripe rust resistance gene,YRAYH,on chromosome arm 5BL in the Chinese wheat landrace Anyuehong(AYH).Evaluations of stripe rust response to prevalent Chinese Pst races in near-isogenic lines derived from a cross of Anyuehong and Taichung 29 showed that YrAYH conferred a high level of resistance at all growth *** mapping using a large segregating population of 9748 plants,narrowed the YRAYH locus to a 3.7 Mb interval on chromosome arm 5BL that included 61 annotated *** analysis of two NIL pairs identified 64 upregulated differentially expressed genes(DEGs)in the resistant NILs(NILs-R).Annotations indicated that many of these genes have roles in plant disease resistance *** a combined approach of fine-mapping and transcriptome sequencing,we identified a serine/threonine-protein kinase SRPK as a candidate gene underlying YrAYH.A unique 25 bp insertion was identified in the NILs-R compared to the NILs-S and previously published wheat *** InDel marker was developed and co-segregated with *** trait evaluation of the NILs suggested that YrAYH not only reduces the impact of stripe rust but was also associated with a gene that increases plant height and spike length.

关键词： Candidate gene analysis Crop protection Puccinia striiformis Transcriptome analyses

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近20年国内学者关于涌现的研究热点及趋势分析——基于知识图谱的可视化分析

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运筹与模糊学 2024年第2期14卷 209-217页

作者：刘洒洒上海工程技术大学管理学院上海

目的:通过对2003~2023年我国涌现研究,分析涌现的热点主题和前沿演进,对研究涌现领域的发展具有重要意义。方法:本文文献计量学的方法,以20年期间对涌现主题文献研究的发文数量、作者合作、机构合作登整体情况加以描述并对结果进行比较... 详细信息

目的:通过对2003~2023年我国涌现研究,分析涌现的热点主题和前沿演进,对研究涌现领域的发展具有重要意义。方法:本文文献计量学的方法,以20年期间对涌现主题文献研究的发文数量、作者合作、机构合作登整体情况加以描述并对结果进行比较。结果:自2005年之后,每年的研究数量均超过超过30篇。在研究热点上,涌现的研究热点有:涌现性、涌现机理、复杂网络、复杂系统、自组织等。涌现研究的最新前沿集中在复杂网络、复杂系统、涌现性和自组织等方面。但涌现研究在机构合作上研究较少。讨论:建议未来研究应树立多学科视角、加强跨机构、跨领域的合作等进行深层次的研究分析。

关键词：涌现研究热点前沿演进可视化分析

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我国医护人员身份建构研究的可视化分析

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运筹与模糊学 2024年第2期14卷 1237-1244页

作者：刘洒洒上海工程技术大学管理学院上海

目的:通过对我国医护人员身份建构的研究,为医护人员身份建构相关领域提供数据参考。方法;通过中国知网系统检索医护人员身份建构研究内容,利用CiteSpace软件进行分析,以关键词共现和关键词聚类形成,以及突现词和时区图对医护人员身份... 详细信息

目的:通过对我国医护人员身份建构的研究,为医护人员身份建构相关领域提供数据参考。方法;通过中国知网系统检索医护人员身份建构研究内容,利用CiteSpace软件进行分析,以关键词共现和关键词聚类形成,以及突现词和时区图对医护人员身份建构主题进行可视化分析。结果:国内2005年出现首篇医护人员身份建构为主题的文献,2021年研究达到最高峰27篇。在研究热点上,医护人员身份建构的研究热点有:身份建构、身份认同、医患关系、医患会话、会话分析、在线医疗问诊和医生身份等。医护人员身份建构研究的最新前沿集中在身份建构、身份认同、医生身份和医患会话等方面。但医护人员研究在作者以及机构合作上研究较少。结论:建议未来拓宽关于医护人员身份建构的研究,如被试医护的范围、影响因素、内容、等进行多视角、多领域、深层次的研究分析。

关键词：身份建构医护人员可视化分析共现分析聚类分析

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