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文博 2009年第6期 365-370页

作者： maria Geba ana-maria vlad Senica Turcanul Codrin Lacatusu Nicoleta Vornicu 文化遗产保护修复中心 “摩尔多瓦”国家综合博物馆罗马尼亚大都会研究中心罗马尼亚

库库提尼的新石器时代陶器距今约5000年,它是Ariusd—CucuteniTripolie古人类活动带的一部分,位于欧洲东南部。对这种三色彩陶器的研究是法国和罗马尼亚的合作项目,基金来源是Brancusi项目提供,研究方向是制陶的黏土成分、烧制温度、用... 详细信息

库库提尼的新石器时代陶器距今约5000年,它是Ariusd—CucuteniTripolie古人类活动带的一部分,位于欧洲东南部。对这种三色彩陶器的研究是法国和罗马尼亚的合作项目,基金来源是Brancusi项目提供,研究方向是制陶的黏土成分、烧制温度、用于涂彩的颜料层(白、红、黑),陶器式样模型材料等。库库提尼文化是19世纪末第一个被发现的,它经历了约120年的流逝,由于过去对它的研究主要为考古调查,处于对它特殊性的好奇,才带出了本课题。本文报道了用岩相学分析的结果,通过对陶质材料进行SEMEDX,XRF检测,得到了库库提尼从A期、A B期到B期的不同进化阶段的岩相学陶层资料,现已发现的Scanteia,Targu Frumos,Ruginoasa,Cucuteni,Isaia,Poienesti考古遗址也符合这种进化阶段。本项目的目的是创建一个基础数据库,使有关库库提尼的资料数据能完整统一地输入古代欧洲研究数据库。

关键词：彩陶岩相学分析基础数据库

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Mixed iridium-nickel oxides supported on antimony-doped tin oxide as highly efficient and stable acidic oxygen evolution catalysts

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Materials Futures 2024年第1期3卷 165-180页

作者： Jonathan Ruiz Esquius Alec P LaGrow Haiyan Jin Zhipeng Yu ana Araujo Rita Marques Adélio Mendes Lifeng Liu Clean Energy Cluster International Iberian Nanotechnology LaboratoryAv.Mestre JoséVeigaBraga 4715-330Portugal Carbon Science and Technology Institute INCAR-CSICFrancisco Pintado Fe 26Oviedo 33011Spain Scientific Imaging Section Okinawa Institute of Science and Technology Graduate UniversityKunigami-gunOkinawa 904-0412Japan Songshan Lake Materials Laboratory Dongguan 523808People’s Republic of China Laboratory for Process Engineering EnvironmentBiotechnology and EnergyFaculty of EngineeringUniversity of PortoRua Dr Roberto FriasPorto 4200-465Portugal Associate Laboratory in Chemical Engineering Faculty of EngineeringUniversity of PortoRua Dr Roberto FriasPorto 4200-465Portugal.

Proton exchange membrane(PEM)water electrolysis represents a promising technology for green hydrogen production,but its widespread deployment is greatly hindered by the indispensable usage of platinum group metal catalysts,especially iridium(Ir)based materials for the energy-demanding oxygen evolution reaction(OER).Herein,we report a new sequential precipitation approach to the synthesis of mixed Ir-nickel(Ni)oxy-hydroxide supported on antimony-doped tin oxide(ATO)nanoparticles(IrNiyO_(x)/ATO,20 wt.%(Ir+Ni),y=0,1,2,and 3),aiming to reduce the utilisation of scarce and precious Ir while maintaining its good acidic OER *** tested in strongly acidic electrolyte(0.1 M HClO_(4)),the optimised IrNi1Ox/ATO shows a mass activity of 1.0 mAµgIr^(−1) and a large turnover frequency of 123 s^(−1) at an overpotential of 350 mV,as well as a comparatively small Tafel slope of 50 mV dec^(−1),better than the IrOx/ATO control,particularly with a markedly reduced Ir loading of only 19.7µgIr cm^(−2).Importantly,IrNi1O_(x)/ATO also exhibits substantially better catalytic stability than other reference catalysts,able to continuously catalyse acidic OER at 10 mA cm^(−2) for 15 h without obvious *** in-situ synchrotron-based x-ray absorption spectroscopy confirmed that the Ir^(3+)/Ir^(4+)species are the active sites for the acidic ***,the performance of IrNi1Ox/ATO was also preliminarily evaluated in a membrane electrode assembly,which shows better activity and stability than other reference *** IrNi1Ox/ATO reported in this work is a promising alternative to commercial IrO_(2) based catalysts for PEM electrolysis.

关键词： mixed oxides oxygen evolution reaction polymer electrolyte membrane antimony doped tin oxide membrane electrode assembly

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Ulcerated intussuscepted jejunal lipoma-uncommon cause of obscure gastrointestinal bleeding: A case report

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World Journal of Clinical Cases 2019年第22期7卷 3765-3771页

作者： Tudor Cuciureanu Laura Huiban Stefan Chiriac ana-maria Singeap Mihai Danciu Florin Mihai Carol Stanciu Anca Trifan Nutu vlad Department of Gastroenterology “Grigore T.Popa”University of Medicine and Pharmacy“St.Spiridon”Emergency HospitalIasi 700115Romania Department of Pathology “Grigore T.Popa”University of Medicine and Pharmacy“St.Spiridon”Emergency HospitalIasi 700115Romania Department of Radiology “Grigore T.Popa”University of Medicine and Pharmacy“St.Spiridon”Emergency HospitalIasi 700115Romania Department of General Surgery “Grigore T.Popa”University of Medicine and Pharmacy“St.Spiridon”Emergency HospitalIasi 700115Romania

BACKGROUND Intestinal lipomas are rare benign gastrointestinal(GI)tumors,usually asymptomatic,but may become symptomatic as the result of some complications such as intussusception,intestinal obstruction,volvulus or *** can occur at any site along the entire GI tract,more frequent in colon and rarely in small *** patient reported here is a very rare case of jejunal lipoma,ulcerated and intussuscepted,diagnosed in an adult investigated for a chronic iron deficiency anemia(IDA),and successfully managed by segmental jejunal *** SUMMARY A 63-year-old male was referred to“***”Hospital,Institute of Gastroenterology and Hepatology,Iasi,to investigate an obscure GI bleeding with an *** upper GI endoscopy and colonoscopy were performed,excluding potentially bleeding lesions,videocapsule endoscopy was then carried out,revealing fresh blood and a protruding lesion in proximal jejunum,findings confirmed by a single-balloon *** biopsies were taken from the lesion,but histological results were ***,contrast-enhanced computed tomography was performed showing jejunal polypoid mass with homogenous fat density,suggestive for lipoma.A week later a laparotomy was performed revealing the intussuscepted jejunal segment which was resected enbloc,and sent for further histopathologic *** patient made an uneventful recovery and was discharged seven days later,and at six months follow-up he had no complains and his hemoglobin returned to normal *** Lipomas are very rarely located in the jejunum,usually asymptomatic,but they may lead to complications such as intussusception and *** resection remains the treatment of choice.

关键词： Lipoma Intussusception Computed tomography Video capsule endoscopy Gastrointestinal bleeding Case report

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