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A third superchron during the Early Paleozoic

Episodes 2005年第2期28卷 78-84页

作者： V.Pavlov y.gallet DepartmentoftheMainGeomagnetic.Field InstituteofPhysicsofthe.EarthMoscow：Russia／／LaboratoiredePaléomagnétismeInstitutdePhysiqueduGlobedePansFrance LaboratoiredePaléomagnétisme InstitutdePhysiqueduGlobedePansFrance

Research on geomagnetic reversal chronology has established the existence of two superchrons, one during the Cretaceous and the other (Kiaman) during the Late *** the past few years, we have performed several magnetostratigraphic studies on Early Paleozoic (Cambrian and Ordovician) sedimentary sequences from Siberia. Our results show high magnetic reversal frequencies during the Middle Cambrian. In contrast, several records show the occurrence of a -20 Myr long reversed polarity interval in the Lower and Middle Ordovician, suggesting the presence of a third superchron. We propose to give the name of “Moyero” to this new superchron; this name is attributed to the Siberian section which first yielded a complete record of this reversed polarity interval.

关键词：古生代地磁反演地质年代学白垩纪沉积序列

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Surface oxidation of Ni-cermet electrodes by CO_(2) and H_(2)O and how to moderate it

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Journal of Energy Chemistry 2022年第4期31卷 300-308页

作者： Dingkai Chen Mathias Barreau Thierry Dintzer Sylwia Turczyniak-Surdacka Fabrice Bournel Jean-Jacques gallet Spyridon Zafeiratos Institut de Chimie et Procédés pour l’Energie l’Environnement et la SantéUMR 7515 CNRS-UdS25 Rue Becquerel67087 StrasbourgFrance Faculty of Chemistry Biological and Chemical Research CentreUniversity of WarsawŻwirki i Wigury 10102-089 WarsawPoland Faculty of Chemistry University of WarsawPasteura 102-093Poland Laboratoire de Chimie Physique-Matière et Rayonnement Sorbonne UniversitéCampus CurieCNRS UMR 76144 place Jussieu75005 ParisFrance Synchrotron SOLEIL L’orme des MerisiersB.P.48Saint AubinGif-sur-Yvette Cedex 91192France

The oxidation of porous Ni-yttria-stabilized zirconia(ySZ)and Ni-gadolinia-doped ceria(GDC)ceramicmetal(cermet)electrodes in H_(2)O and CO_(2)atmospheres was studied by near-ambient pressure X-ray photoelectron spectroscopy(NAP-XPS).We show that the oxidation of nickel by the two gases is not similar,as is commonly believed,but it depends on the ceramic *** is vulnerable to oxidation in H_(2)O but it resists to CO_(2)in Ni-GDC,as compared to the Ni-ySZ *** by this observation we conceptualize and fabricate Ni-ySZ electrodes modified by ceria nanoparticles,which show significantly higher resistance to CO_(2)oxidation as compared with conventional Ni-ySZ *** preparation of tailormade cermet electrodes with identical bulk/mechanical characteristics but very different surface properties offers a promising fabrication strategy for high-performance and durability solid oxide electrolysis cells for CO_(2)conversion.

关键词： NAP-XPS CO_(2)electrolysis Nickel oxidation Solid oxide cells Ceria nanoparticles

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Nanoscale interfacial engineering enables highly stable and efficient perovskite photovoltaics

Nanoscale interfacial engineering enables highly stable and ...

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第八届新型太阳能材料科学与技术学术研讨会

作者： Anurag Krishna Hong Zhang Zhiwen Zhou Thibaut gallet Mathias Dankl Olivier Ouellette Felix T.Eickemeyer Fan Fu Mounir Mensi Shaik M.Zakeeruddin Ursula Rothlisberger G.N.Manjunatha Reddy Alex Redinger Michael Gr?tzel Anders Hagfeldt Laboratory of Photomolecular Science Institute of Chemical Sciences and Engineeringécole Polytechnique Fédérale de Lausanne Laboratory of Photonics and Interfaces école Polytechnique Fédérale de Lausanne

Long-term operational stability remains the primary concern for perovskite solar cells. Consequently, there is a quest for searching for new compositions that enable stable and efficient perovskites. We report a new molecular-level interface engineering strategy using a multifunctional ligand that augments long-term operational and thermal stability by chemically modifying the formamidinium lead iodide rich photoactive layer. The surface derivatized solar cells exhibited high operational stability(maximum powering point tracking at 1 sun) with a stabilized T80(the time over which the device efficiency reduces to 80% of its initial value of post-burn-in) of ≈5950 h at 40 oC and stabilized efficiency over 23%. The origin of high device stability and performance is correlated to the nano/subnanoscale molecular level interactions between ligand and perovskite layer, which is corroborated by comprehensive multiscale characterization. Our results provide key insights into the modulation of the grain boundaries, local density of states, surface bandgap, and interfacial recombination. Chemical analysis of the aged devices showed that interface passivation inhibited ion migration and prevented photoinduced I2 release that irreversibly degrades the perovskite. This study shows that passivating ligands have the potential to overcome stability issues associated with the high performing hybrid perovskite compositions, thus allowing a step closer to achieving long-standing stability of perovskitebased solar cells.

关键词： perovskite solar cells supramolecular chemistry molecular passivation grain boundaries defects operational stability

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环保行为的转变——以法国绿色和平组织为例

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鄱阳湖学刊 2014年第6期 112-116页

作者：杰拉尔德·格莱特文[法] 翟金秀李瑞艳(译) 欧洲政治研究国际协会中国社会科学院山东大学马克思主义学院山东济南250100 山东大学马克思主义学院山东济南250100

绿色和平组织是全球范围内最具影响力的非政府组织,该组织以"非暴力直接行动"的激进精神为宗旨,致力于全球环境保护的工作。为了更切实有效地开展全球环保工作,绿色和平组织在全球30个国家拥有43个分部,以当地国家的政治文化、地理、历... 详细信息

绿色和平组织是全球范围内最具影响力的非政府组织,该组织以"非暴力直接行动"的激进精神为宗旨,致力于全球环境保护的工作。为了更切实有效地开展全球环保工作,绿色和平组织在全球30个国家拥有43个分部,以当地国家的政治文化、地理、历史等为依托,因地制宜地开展工作。然而,在环保工作进展过程中,一些主客观因素阻碍了绿色和平组织的发展步伐,促使该组织的环保行为发生了转变。

关键词：绿色和平组织环保行为环境政治

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免疫正常患者的传染性蜂窝织炎和Shewanella藻类败血症1例(法语)

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世界核心医学期刊文摘（皮肤病学分册） 2005年第4期1卷 55-55页

作者： Clément L.-F gallet C. Perron J. Lesueur A. 刘艳 Service de Mópital Bligny 91640 Briisedecine Interne H.sous-Forges France

Background. Shewanella alga is a Gram-negative bacilla often found in water or soil. Clinical infections in humans are rare, with serious infections described generally in immunocompromised hosts. Case report. A 66 year-old man with a heel wound had developed, after numerous sea baths in the Atlantic ocean (Oleron island, France), an infectious cellulitis of the leg with Shewanella alga septicemia. Despite the absence of immunodeficiency in this patient, infectious cellulitis and septicemia occurred via a wound to the skin and contact with sea water. Healing was seen after treatment with cefotaxime, ciprofoxacin and gentamicin IV, relayed with ciprofloxacin and erythromycin. Shewanella alga was also susceptible to ticarcillin, piperacillin and ceftazidime but was resistant to ampicillin, amoxicilline-clavulanate, colistin, cyclines, fosfomycin and cefsulodin. No immunological anomaly was found. Discussion. We report a case of infectious cellulitis with Shewanella alga septicemia. This has not previously been described in an immunocompetent patient. Antibiotic therapy must be longer than usual treatment for streptococcal erysipelas and first-line antibiotherapy with ampicillin alone may not be sufficient.

关键词：蜂窝织炎 Shewanella 琥乙红霉素羟氨苄青霉素头孢拉啶革兰阴性细菌多粘菌素抗菌治疗磷霉素替卡西林

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