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Pyrenetetraone-based covalent organic framework as an effective electrocatalyst for oxygen reduction reaction

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Nano Research 2022年第5期15卷 3907-3912页

作者： Paloma garcia-Arroyo Emiliano Martinez-Perinan Jorge J.Cabrera-Trujillo Elena Salagre Enrique g.michel Jose I.Martinez Encarnacion Lorenzo Jose L.Segura Departamento de Quimica Organica I Facultad de CC.QuimicasUniversidad Complutense de Madrid28040 MadridSpain Departamento de Quimica Analitica y Analisis Instrumental Facultad de CienciasUniversidad Autónoma de Madrid28049 MadridSpain Departamento de Fisica de la Materia Condensada Universidad Autónoma de Madrid28049 MadridSpain Condensed Matter Physics Center(IFIMAC) Universidad Autónoma de Madrid28049 MadridSpain Departamento de Nanoestructuras SuperficiesRecubrimientos y Astrofisica MolecularInstituto de Ciencia de Materiales de Madrid(ICMMCSIC)28049 MadridSpain Instituto Madrileno de Estudios Avanzados en Nanociencia(IMDEA-Nanociencia) 28049 MadridSpain Institute for Advanced Research in Chemical Sciences(IAdChem) Universidad Autonoma de Madrid28049 MadridSpain

A novel porous and crystalline two-dimensional(2D)electrochemically active covalent organic framework(COF)based on ortho-quinone units has been prepared as an innovative approach towards the development of organic cathode materials with multiple redox sites as an efficient electrocatalyst for the oxygen reduction reaction(ORR).In contrast with most of the previously reported COFs as electrocatalysts for the ORR,the electrocatalytic application of this material towards ORR has been investigated without adding any metal or conductive supporting material and avoiding any additional carbonization ***,the electrochemical properties of the COF material have been compared with two analogue amorphous frameworks with similar chemical composition,which points out the important role of the enhanced crystallinity and porosity of the COF network in its superior performance as an electrocatalyst towards ORR.

关键词： electrocatalysis oxygen reduction reaction metal free pyrenetetraone covalent organic framework

子宫颈癌的治疗(五) 侵犯性子宫颈上皮癌累及泌尿系或邻近器官的治疗(累及泌尿系的T3和T4)

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昆明医学院学报 1983年第S1期 43-47页

作者： g.michel 胡素秋

在理论上,子宫颈癌扩展型累及泌尿系或邻近器官(膀胱及/或直肠)的治疗法,应以手术切除最为理想。但由于临床上.此二型的演进特别恶化,常不能够耐受手术,即使施行手术,亦仅只能作到剖腹探查而已,故实际上,仍以放射治疗为主。此外,对于其... 详细信息

在理论上,子宫颈癌扩展型累及泌尿系或邻近器官(膀胱及/或直肠)的治疗法,应以手术切除最为理想。但由于临床上.此二型的演进特别恶化,常不能够耐受手术,即使施行手术,亦仅只能作到剖腹探查而已,故实际上,仍以放射治疗为主。此外,对于其它类型的子宫颈癌,可以用手术与放射密切结合的方法治疗,但应注意,只须获得大约中等效果即可,而不应使患者的治疗负担过重。

关键词：子宫颈癌 T3 T4 泌尿系器官

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卵巢上皮癌的治疗分两期手术的优点

昆明医科大学学报 1984年第S2期 30-33页

作者： g.michel 胡素秋

手术在卵巢上皮癌的诊断、检查和治疗上、都占有首要的地位。尽管已有了化学及放射等重要的辅助疗法,但切除术仍为卵巢癌的关键性治疗措施。只有手术才能够在切除肿瘤后进行明确的组织学诊断,也才能够查明肿瘤扩展的确切情况,作出分类...

手术在卵巢上皮癌的诊断、检查和治疗上、都占有首要的地位。尽管已有了化学及放射等重要的辅助疗法,但切除术仍为卵巢癌的关键性治疗措施。只有手术才能够在切除肿瘤后进行明确的组织学诊断,也才能够查明肿瘤扩展的确切情况,作出分类并决定以后的治疗措施。此外,在治疗过程中常规施行再次剖腹探查术(第二次观察),才能够真正鉴定化学疗法的疗效。

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316L奥氏体不锈钢焊接热影响区性能

上海交通大学学报 2001年第2期 208-208页

作者：王敏,g.michel,J.F.JULLIEN 上海交通大学材料科学与工程学院!上海200030 INSAdeLyon!20AvenueAlbertEinstein 69621Villeurbanne France INSAdeLyon!20AvenueAlbertEinstein 69621Villeurbanne France

为了研究 316 L 焊接热影响区性能 ,采用特定的热、应力、应变模拟控制曲线 ,对其在 2 0℃、6 0 0℃、10 0 0℃及 110 0℃几种温度下进行热模拟拉伸试验 ,获得了此种材料在多种应变速率下的应力 -应变曲线 .结果表明 ,在一定的应变速率... 详细信息

为了研究 316 L 焊接热影响区性能 ,采用特定的热、应力、应变模拟控制曲线 ,对其在 2 0℃、6 0 0℃、10 0 0℃及 110 0℃几种温度下进行热模拟拉伸试验 ,获得了此种材料在多种应变速率下的应力 -应变曲线 .结果表明 ,在一定的应变速率下 ,316 L 的弹性模量 E及屈服极限 σ0 .2 都随温度升高明显降低 ;在室温及高温下 ,316 L 存在着 σ0 .2 随应变速率提高而提高的应变率效应 ,且应变率敏感性随温度升高而增加 .同时 ,还观察到 316 L在高温 (10 0 0℃和110 0℃ )塑性状态下由粘塑性引起的应力松弛现象及室温下的加工硬化现象 .

关键词：热影响区应变速率应变率

Integrated model simulates bigger, sweeter tomatoes under changing climate under reduced nitrogen and water input

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Horticulture Research 2023年第5期10卷 61-71页

作者： Huiping Zhou Shaozhong Kang.michel génard gilles Vercambre Jinliang Chen Center for Agricultural Water Research in China China Agricultural UniversityBeijing 100083China National Field Scientific Observation and Research Station on Efficient Water Use of Oasis Agriculture in Wuwei of gansu Province Wuwei 733009China INRAE UR 1115 Plantes et Systèmes de Culture HorticolesAvignon Cedex 9 F-84914France

When simulating the response of fruit growth and quality to environmental factors and cultivation practices,the interactions between the mother plant and fruit need to be considered as a whole ***,we developed the integrative Tomato plant and fruit growth and Fruit Sugar metabolism(TgFS)model by coupling equations describing the biophysical processes of leaf gas exchange,water transport,carbon allocation,organ growth and fruit sugar *** model also accounts for effects of soil nitrogen and atmospheric CO_(2) concentration on gaseous exchange of water and carbon by the *** different nitrogen and water input values,TgFS performed well at simulating the dry mass of the tomato leaf,stem,root,and fruit,and the concentrations of soluble sugar and starch in *** simulations showed that increasing air temperature and CO_(2) concentration has positive effects on fruit growth,but not on sugar *** model-based analyses of cultivation scenarios suggest that,in the context of climate change,decreasing N by 15%–25%and decreasing irrigation by 10%–20%relative to current levels would increase tomato fresh weight by 27.8%–36.4% while increasing soluble sugar concentration by up to 10%.TgFS provides a promising tool to optimise N and water inputs for sustainable high-quality tomatoes.

关键词： soil sugar metabolism

On Some Elliptic Problems in Unbounded Domains

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Chinese Annals of Mathematics,Series B 2018年第3期39卷 597-606页

作者： michel CHIPOT Dedicated to Philippe g. Ciarlet on the occasion of his 80th birthda

The author presents a method allowing to obtain existence of a solution for some elliptic problems set in unbounded domains,and shows exponential rate of convergence of the approximate solution toward the solution.

关键词： Elliptic Exponential convergence Unbounded domains

Pulsed export of carbon in the north-western Mediterranean Sea

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Journal of Oceanology and Limnology 2023年第1期41卷 189-202页

作者： michel DENIS Dominique LEFEVRE Melilotus THYSSEN Ian RJENKINSON gérald gRÉgORI Aix Marseille Université Universitéde ToulonCNRS/INSUIRDInstitut Méditerranéen d'Océanologie(MIO)Marseille cedex09 13288France Key Laboratory of Marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China Agency for Consultation and Research in Oceanography Lavergne19320 La Roche CanillacFrance

The short term(hourly scale)variability of heterotrophic prokaryote(HP)vertical distribution and respiratory activity,was investigated in the north-western(NW)Mediterranean *** vertical distribution was determined on board by flow cytometry analysis of seawater samples collected by series of CTD *** counts and viability were determined for all *** respiratory rates were determined later in the laboratory from filtered seawater samples(23 dm^(3))from 300-1150-m *** average cell viability was 94.8%±2.2%(n=240).There was no accumulation of dead cells,due to quick decay of damaged *** the epipelagic layer,three HP groups were distinguished,two(HNA1,HNA2)who se cells exhibited a high nucleic acid content and one(LNA)with low nucleic acid content ***2 was most populated at 50 m but not detected at 90 m and below,presumably aerobic anoxygenic photoheterotrophic bacteria(AAPs).The variability in HP abundance was mainly confined in the upper 80 m.A few secondary peaks of HP abundance were observed(80-150 m)in connection with abundance troughs in the surface *** cells were continuously present in a wide layer around 500 m(mean 191×10^(3)cells/cm^(3)).Below this layer,HP abundance randomly exhibited peaks,coupled to respiratory rate *** HP abundance and variability in the water column was suppressed during a strong wind *** observed sporadic variability was tentatively interpreted through a pulsed carbon-export mechanism induced by the microorganism production of dissolved poly saccharide s,followed by flocculation and rapid *** mechanism would thus contribute to(ⅰ)preventing organic matter accumulation in the epipelagic layer,(ⅱ)seeding the water column with live HP cells,and(ⅲ)supplying the aphotic water column with fre sh and labile organic *** important vertical flux mechanism needs further observations and modelling.

关键词： north-western Mediterranean Sea heterotrophic prokaryote(HP) cell viability cell respiration transparent exopolymeric particle(TEP) aggregation flow cytometry

A new family of carbonaceous cathodes for rechargeable batteries through electronic structure tuning engineering

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National Science Review 2021年第2期8卷 7-8页

作者： michel Armand Centre for Cooperative Research on Alternative Energies Basque Research and Technology Alliance

Electric vehicles(EVs) and grid storage for renewable energies will require batteries in tens of millions of tons, and thus they need to be sustainable. EVs call also for batteries with higher energy density than currently available, and this value is intrinsically limited by the properties of the transition metal oxide(TMO) cathodes [1]. There are two possible strategies to overcome these limitations: i) increase the operating voltage in the >4.4 V range; and ii) attempt to use more than one electron per transition metal [2]. The first strategy faces problems of electrolyte stability limit and oxygen evolution, and thus safety hazards. The second is limited to vanadium and nickel, but using only1.3 electrons for the former,

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Complete Coulomb stress changes induced by the Ms7.6 earthquake in Lancang-gengma, Yunnan and triggering of aftershocks by dynamic and static stress

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Science China Earth Sciences 2007年第11期50卷 1655-1662页

作者： michel BOUCHON Université Joseph Fourier F38041 Grenoble France

The spatiotemporal evolution patterns of complete Coulomb stress changes caused by 1988 Ms7.6 earthquake in Lancang-gengma, Yunnan, are calculated and studied. And the triggering problems of Ms7.2 gengma shock occurring 13 minutes after the main shock and of Ms5.0―6.9 aftershocks within 24 days after the main shock are discussed. The results show that the spatial distribution patterns of complete Coulomb stress changes of the Ms7.6 main shock are strongly asymmetric. The areas of positive dynamic and static Coulomb stress are both coincident well with the strong aftershocks' loca-tions. The Ms7.2 gengma shock and most of strong aftershocks are subjected to the triggering effect of dynamic and static Coulomb stresses induced by the Ms7.6 Lancang earthquake.

关键词： complete Coulomb stress changes,dynamic and static stress triggering,earthquakes in Yunnan