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Electrochemical inactivation of cyanobacteria and microcystin degradation using a boron-doped diamond anode-A potential tool for cyanobacterial bloom control

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Journal of Environmental Sciences 2017年第3期29卷 248-261页

作者： Andrej Meglic Anja Pecman Tinkara Rozina Domen Lestan Bojan Sedmak Arhel Ltd. Pustourhoua c.63SI-1000 LjubljanaSlovenia Centre for Soil and Environmental Sciences Biotechnical FacultyUniversity of LjubljanaJamnikarjeva 101SI-1000 LjubljanaSlovenia Envit Ltd. Vojkova c.63SI-1000 LjubljanaSlovenia Department of Genetic Toxicology and Cancer Biology National Institute of BiologyVecna pot 111SI-1000 LjubljanaSlovenia

Cyanobacterial blooms are global phenomena that can occur in calm and nutrient-rich （eutrophic） fresh and marine waters. Human exposure to cyanobacteria and their biologically active products is possible during water sports and various water activities, or by ingestion of contaminated water. Although the vast majority of harmful cyanobacterial products are confined to the interior of the cells, these are eventually released into the surrounding water following natural or artificially induced cell death. Electrochemical oxidation has been used here to damage cyanobacteria to halt their proliferation, and for microcystin degradation under in-vitro conditions. Partially spent Jaworski growth medium with no addition of supporting electrolytes was used. Electrochemical treatment resulted in the cyanobacterial loss of cell-buoyancy regulation, cell proliferation arrest, and eventual cell death. Microcystin degradation was studied separately in two basic modes of treatment： batch-wise flow, and constant flow, for electrolytic-cell exposure. Batch-wise exposure simulates treatment under environmental conditions, while constant flow is more appropriate for the study of boron-doped diamond electrode efficacy under laboratory conditions. The effectiveness of microcystin degradation was established using high-performance liquid chromatography-photodiode array detector analysis, while the biological activities of the products were estimated using a colorimetric protein phosphatase-1 inhibition assay. The results indicate potential for the application of electro-oxidation methods for the control of bloom events by taking advantage of specific intrinsic ecological characteristics of bloom-forming cyanobacteria. The applicability of the use of boron-doped diamond electrodes in remediation of water exposed to cyanobacteria bloom events is discussed.

关键词： Cyanobacterial bloom controlBoron-doped diamond anodeElectro-oxidationMicrocystin degradationProtein phosphatase-1 inhibitionWater remediation

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A Note on Special Local 2-Nilpotent Groups and the Solvability of Finite Groups

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Algebra Colloquium 2018年第4期25卷 541-546页

作者： Jiangtao Shi Klavdija Kutnar Cui Zhang School of Mathematics and Information Sciences Yantai University YantaiShandong 264005China University of Primorska FAMNITGlagoljaska 86000 KoperSlovenia University of Primorska IAMMuzejski trg 26000 KoperSlovenia School of Mathematics and Information Science Yantai University YantaiShandong 2640058China

A finite group G is called a special local 2-nilpotent group if G is not 2-nilpotent,the Sylow 2-subgroup P of G has a section isomorphic to the quaternion group of order 8,Ω(P∩G')≤Z(P)and NG(P)is *** this paper,it is shown that SL2(q),q>3,is a special local 2-nilpotent group if and only if q^2≡1(mod 16),and that GL2(q),q>3,is a special local 2-nilpotent group if and only if q is ***,the solvability of finite groups is also investigated by giving two generalizations of a result from[A note on p-nilpotence and solvability of finite groups,*** 321(2009)1555-1560].

关键词： quaternion group 2-nilpotent group solvable group

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Diversification of procedural and administrative costs and innovation:Some firm-level evidence

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International Journal of Innovation Studies 2021年第2期5卷 56-98页

作者： Mitja Kovac Rok Spruk School of Economics and Business University of Ljubljana1000LjubljanaSlovenia

We examine the diversification of administrative and procedural costs on patent stock using a large dataset from the European Patent Office with 15,000 firms for the period between 1995 and *** results reveal that administrative and procedural costs are significant for firm-level patenting ***,not all administrative and procedural costs have equal *** administrative costs often encourage patent application and validation by solving the adverse selection problem and short-run opportunism,as well as other sources of asymmetric *** effective administration of intellectual property law and low-cost enforcement are found to considerably foster patenting *** effects are robust for various mis-specification checks and do not disappear once country-level research and development infrastructure proxies are controlled *** extreme bounds of administrative and procedural costs are computed across more than 5 billion regressions,and the sizeable impact of administration on patent application and validation outcomes is confirmed.

关键词： Patents Intellectual property rights Patent stock Diversification of procedural and administrative cost

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Novel lead-free BCZT-based ceramic with thermally-stable recovered energy density and increased energy storage efficiency

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Journal of Materiomics 2022年第4期8卷 873-881页

作者： Zouhair Hanani Soukaina Merselmiz M'barek Amjoud Daoud Mezzane Mohammed Lahcini Jaafar Ghanbaja Matjaz Spreitzer Damjan Vengust Mimoun El Marssi Igor A.Luk'yanchuk Zdravko Kutnjak Brigita Rozic Mohamed Goune IMED-Lab Cadi Ayyad UniversityAvenue Abdelkrim El KhattabiP.B.549Marrakesh40000Morocco ICMCB University of Bordeaux87 Avenue Du Dr Albert SchweitzerPessac33600France Jozef Stefan Institute Jamova Cesta 39Ljubljana1000Slovenia LPMC University of Picardy Jules Verne33 Rue Saint LeuAmiens80039France Mohammed VI Polytechnic University Lot 660-Hay Moulay RachidBen Guerir43150Morocco IJL University of Lorraine54000NancyFrance Department of Building Materials Kyiv National University of Construction and ArchitectureKyiv03680Ukraine

The eco-responsible lead-free piezoelectric ceramics have been intensively searched for more than adecade, however, the final goal to replace toxic ceramics like lead zirconate titanate (PZT) with lead-freecompounds, having comparable or even better performance has not yet been reached. In this road, thelead-free ceramics Ba_(0.85)Ca_(0.15)Zr_(0.1)Ti_(0.9)O_(3) (BCZT), possessing excellent dielectric, ferroelectric, andpiezoelectric properties are regarded as serious candidates for the PZT replacement. Besides, nano-structuring BCZT is of paramount importance to enhance these functionalities even more. Here, BCZTmultipodes are designed by template-growth hydrothermal synthesis using hydrogen zirconate titanatenanowires. We demonstrate that the fabricated BCZT multipodes exhibit high dielectric permittivity of5300 with a temperature stability coefficient of ±5.9% between 20 and 140℃. A significant recoveredenergy density of 315.0 mJ/cm^(3) with high thermal stability and high energy storage efficiency of 87.4%,and enhanced large-signal piezoelectric coefficient d^(*)_(33) (310 pm/V) are found. Compared to the tradi-tional BCZT ceramics reported in the literature, relying on high-temperature processing, our sampleexhibits boosted energy storage parameters at a much lower temperature. These outcomes may offer anew strategy to tailor eco-responsible relaxor ferroelectrics toward superior energy storage performancefor ceramic capacitor applications.

关键词： Lead-free ceramics Low temperature Piezoelectric Thermal stability Energy storage Nanostructuration

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Advancing Li-ion storage performance with hybrid vertical carbon/Ni_(3)S_(2)-based electrodes

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Journal of Energy Chemistry 2022年第4期31卷 8-18页

作者： Neelakandan M.Santhosh Nitheesha Shaji d Petra Stražar Gregor Filipič Janez Zavašnik Chang Won Ho Murugan Nanthagopal Chang Woo Lee UrošCvelbar Department of Gaseous Electronics(F6) Jožef Stefan InstituteJamova cesta 39SI-1000 LjubljanaEUSlovenia Jožef Stefan International Postgraduate School Jamova cesta 39SI-1000 LjubljanaEUSlovenia Faculty of Mathematics and Physics University of LjubljanaJadranska cesta 19SI-1000 LjubljanaEUSlovenia Department of Chemical Engineering(Integrated Engineering) College of EngineeringKyung Hee University1732 Deogyeong-daeroGiheungYonginGyeonggi 17104South Korea Center for the SMART Energy Platform College of EngineeringKyung Hee University1732 Deogyeong-daeroGiheungYonginGyeonggi 17104South Korea

Conversion-reaction induced charge storage mechanisms of transition metal sulphides have received considerable interest in designing high-capacity electrodes for electrochemical energy storage ***,their low conductivity and structural degradation during cycling limit their applications as energy storage devices.A combination of different nickel sulphide phases tailored with carbon nanostructures is suggested to address these ***,a facile,two-step approach is demonstrated for fabricating a hybrid electrode,consisting of trinickel disulphide(Ni_(3)S_(2))formed on a metallic Ni nanoparticle supported by vertical carbon nanotubes(VCN)backbone in the form Ni_(3)S_(2)/Ni@***_(3)S_(2)/Ni@VCN electrodes were tested as anode for lithium-ion batteries,and the electrode featured outstanding lithiumstorage capabilities with a high reversible capacity(1113 m Ah g^(-1) after 100 cycles at 100 m A g^(-1)),excellent long-term cycling stability(770 m Ah g^(-1) after 500 cycles at 200 m A g^(-1)),and good rate *** resulting electrode performance is one of the best Li-ion storage capabilities in the Ni_(3)S_(2)-type anode materials described.A unique “broccoli-like”structure of polycrystalline Ni_(3)S_(2)capped on conductive VCN backbone helps the interface storage process and boosts lithium storage performance.

关键词： Ni_(3)S_(2) Vertical carbon nanostructures Hierarchical structures Binder-free electrode Lithium-ion batteries

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Plasma-Enhanced Atomic Layer Deposition of Amorphous Ga_(2)O_(3) for Solar-Blind Photodetection

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Journal of Electronic Science and Technology 2022年第4期20卷 331-344页

作者： Ze-Yu Fan Min-Ji Yang Bo-Yu Fan Andraz Mavric Nadiia Pastukhova Matjaz Valant Bo-Lin Li Kuang Feng Dong-Liang Liu Guang-Wei Deng Qiang Zhou Yan-Bo Li Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054 Materials research Laboratory University of Nova GoricaNova Gorica SI-5000 Yangtza Delta Region Institute(Huzhou) University of Electronic Science and Technology of ChinaHuzhou 313001

Wide-bandgap gallium oxide(Ga_(2)O_(3))is one of the most promising semiconductor materials for solar-blind(200 nm to 280 nm)*** its amorphous form,amorphous gallium oxide(a-Ga_(2)O_(3))maintains its intrinsic optoelectronic properties while can be prepared at a low growth temperature,thus it is compatible with Si integrated circuits(ICs)***,the a-Ga_(2)O_(3) film is directly deposited on pre-fabricated Au interdigital electrodes by plasma enhanced atomic layer deposition(PE-ALD)at a growth temperature of 250°*** stoichiometric a-Ga_(2)O_(3) thin film with a low defect density is achieved owing to the mild PE-ALD *** a result,the fabricated Au/a-Ga_(2)O_(3)/Au photodetector shows a fast time response,high responsivity,and excellent wavelength selectivity for solar-blind ***,an ultra-thin MgO layer is deposited by PE-ALD to passivate the Au/a-Ga_(2)O_(3)/Au interface,resulting in the responsivity of 788 A/W(under 254 nm at 10 V),a 250-nm-to-400-nm rejection ratio of 9.2×10^(3),and the rise time and the decay time of 32 ms and 6 ms,*** results demonstrate that the a-Ga_(2)O_(3) film grown by PE-ALD is a promising candidate for high-performance solar-blind photodetection and potentially can be integrated with Si ICs for commercial production.

关键词： Amorphous gallium oxide(a-Ga_(2)O_(3)) passivation layer plasma enhanced atomic layer deposition(PE-ALD) responsivity solar-blind photodetector

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应用振幅整合脑电图监测体外膜肺治疗过程中的新生儿癫痫1例(摘译)

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中国当代儿科杂志 2008年第4期10卷 547-551页

作者： Stefan GROSEK Damjan OSREDKAR Metka DERGANC David NEUBAUER Janez PRIMOZIC 李萌(译) 杨于嘉(校) Department of Pediatric Surgery and Intensive Care University Children＇s Hospital University Medical Centre Ljubljana Ljubljana Slovenia Department of Pediatric Neurology University Children＇s Hospital University Medical Centre Ljubljana Ljubljana Slovenia 不详

Infants with severe cardiorespiratory failure treated with extracorporeal membrane oxygenation are at risk of hypoxic-ischemic injury and infarction of the brain, intracranial hemorrhage, and seizures. Consequently, this can lead to adverse neurodevelopmental outcome. We present a neonate treated with veno-arterial extracorporeal membrane oxygenation due to diaphragmatic hernia. The infant＇s brain function was continuously monitored with amplitude-integrated electroencephalography. The child experienced clinical seizures and subclinical seizure discharges, detected by amplitudeintegrated electroencephalography, permitting the opportunity to treat them and adjust the anticonvulsive treatment accordingly.

关键词：呼吸机治疗新生儿癫痫体外膜肺脑电图监测缺氧缺血性损伤摘译振幅癫痫发作

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Temperature-dependent dielectric anomalies in powder aerosol deposited ferroelectric ceramic films

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Journal of Materiomics 2022年第6期8卷 1239-1250页

作者： Udo Eckstein Jorg Exner Andreja Bencan Golob Katarina Ziberna Goran Drazic Hana Ursic Haiko Wittkamper Christian Papp Jaroslaw Kita Ralf Moos Kyle G.Webber Neamul H.Khansur Department of Materials Science and Engineering Friedrich-Alexander-Universit€at Erlangen-NürnbergGermany Department of Functional Materials University of BayreuthGermany Electronic Ceramics Department Jozef Stefan InstituteLjubljanaSlovenia Department of Materials Chemistry National Institute of ChemistryLjubljanaSlovenia Department of Chemistry and Pharmacy Friedrich-Alexander-Universit€at Erlangen-NürnbergGermany

Room-temperature fabrication of functional ceramic films using powder aerosol deposition(AD)is important for practical ***,the as-processed ferroelectric films show unusual temperature-dependent dielectric response,including enhanced conductivity in the as-processed state and subsequent significant increase in the permittivity following heat *** this work,we investigate the influence of the residual internal stresses developed during the high-impact consolidation process on the dielectric ***,the recombination of charged defects generated during deposition is driven by the temperature and the atmospheric condition during the heat treatment as well as the carrier gas type used during *** treatment up to 500℃ in different atmospheres was used to tune the dielectric and ferroelectric response,highlighting that irrespective of the type of carrier gas,AD deposition process induces charged defects in polar oxide ceramics that can be reduced through heat-treatment far-below their bulk sintering *** electromechanical properties are contrasted to in-situ heating scanning transmission electron microscopy to observe possible local effects,such as crystallization,grain growth,crystal defect structure,or grain *** addition X-ray diffraction and X-ray photoelectron spectroscopy studies were conducted to gain insight into the effect of annealing on the crystal structure and local moisture adsorption.

关键词： Aerosol deposition Functional ceramic thick films Energy storage Structural characterization

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Stable dielectric response of low-loss aromatic polythiourea thin films on Pt/SiO_(2) substrate

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Journal of Advanced Dielectrics 2016年第1期6卷 46-49页

作者： A.Eršte L.Fulanović L.Čoga M.Lin Y.Thakur Q.M.Zhang V.Bobnar Jožef Stefan Institute Jamova cesta 39 SI-1000 LjubljanaSlovenia Faculty of Mathematics and Physics University of Ljubljana Jadranska ulica 19SI-1000 LjubljanaSlovenia Department of Electrical Engineering and Materials research Institute The Pennsylvania State University University ParkPennsylvania 16802USA

We have investigated dielectric properties of aromatic polythiourea(ArPTU,a polar polymer containing high dipolar moments with very low defect levels)thin films that were developed on Pt/SiO_(2) *** detected response is compared to the response of commercially available polymers,such as high density polyethylene(HDPE)and polypropylene(PP),which are at present used in foil *** values of the dielectric constantε'≈5(being twice higher than in HDPE and PP)over broad temperature and frequency ranges and dielectric losses as low as in commercial systems suggest ArPTU as a promising candidate for future use in a variety of applications.

关键词： Aromatic polythiourea dielectric polymer film capacitor dielectric spectroscopy ellipsometry

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Synthesis,structure and magnetism of a novel Cu4^ⅡTi5^Ⅳ heterometallic cluster

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Chinese Chemical Letters 2020年第3期31卷 809-812页

作者： Kai Sheng Xuefei Tian Marko Jagodic Zvonko Jaglicic Na Zhang Qing-Yun Liu Chen-Ho Tung Di Sun Key Laboratory of Colloid and Interface Chemistry Ministry of EducationSchool of Chemistry and Chemical EngineeringState Key Laboratory of Crystal MaterialsShandong UniversityJi'nan 250100China School of Aeronautics Shandong Jiaotong UniversityJi'nan 250037China Faculty of Civil and Geodetic Engineering&Institute of Mathematics Physics and MechanicsUniversity of LjubljanaLjubljana 1000Slovenia College of Chemical and Environmental Engineering Shandong University of Science and TechnologyQingdao 266590China Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology School of Chemistry and Chemical EngineeringLiaocheng UniversityLiaocheng 252000China

A nonanuclear Cu4^ⅡTi5^Ⅳheterometallic cluster,[Ti5 Cu4 O6(ba)(16)](1,Hba=benzoic acid)was synthesized in one-pot reaction under the solvothermal *** metallic skeleton 1 contains a Ti5 core constructed from two vertex-shared Ti3 triangles and four separated Cu atoms outside which are connected together byμ3-O^2- *** 16 ba ligands adoptμ2-η^1:η^1 coordination mode to protect the overall hetero metallic co *** to the unique d-d transitions of Cu^Ⅱion,the reflectance spectrum of 1 displays broad and strong absorption towards visible light extending to the near-infrared ***,1 shows almost purely paramagnetic behavior with the presence of weak antiferromagnetic interactions at low temperatures.

关键词： Heterometallic cluster Titanium Copper Magnetic property Narrow bandgap

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