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Geoscience Frontiers 2016年第5期7卷 859-864页

作者： H.N.Sinha jacques Verniers Department of Geology Vinoba Bhave University Hazaribag 825301 India Research Unit Palaeontology Department of Geology and Soil Science WE13 Ghent University Belgium

Belonechitina capitata, a typically middle to late Ordovician chitinozoan index taxon was for the first time recovered from the northeastern Kumaon region, a part of Garhwal-Kumaon Tethys basin of the Himalaya, India. This species is of great biostratigraphic importance and has already been reported from Avalonia, Baltica and northern Gondwana. The study area was during Ordovician, part of a lowpalaeolatitudinal Gondwana region. The vesicles of recovered forms are black and fragmentary. This is principally attributed to intense tectonic activity during the Himalayan orogenic movement which resulted into high thermal alteration. The chitinozoans are found along with melanosclerites.

关键词： Chitinozoan(Belonechitina capitata) Ordovician Northeastern Kumaon Tethys Himalaya Low palaeolatitudinal Gondwana Shiala Formation

Chalcogenide Glass for Passive Infrared Applications

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光学学报 2003年第S1期23卷 72-73页

作者： jacques Lucas (UMR CNRS 6512 "Verres et Ceramiques" Institut de Chimie de Rennes Universite de Rennes 1 35042 Rennes cedex France

Chalcogenide glass fibers have been successfully used for remote spectroscopy, temperature sensing and CO2 laser power delivery. In bulk form, chalcogenide glass is the most promising candidate for replacing the expen... 详细信息

关键词： for as have by into it of Chalcogenide Glass for Passive Infrared Applications been

Cambrian-early Ordovician volcanism across the South Armorican and Occitan domains of the Variscan Belt in France:Continental break-up and rifting of the northern Gondwana margin

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Geoscience Frontiers 2017年第1期8卷 25-64页

作者： Andre Pouclet j.j.vier Alvaro jacques-Marie Bardintzeff Andres Gil Imaz Eric Monceret Daniel Vizcaino 3 rue des Foulques 85560 Longeville-sur-merFrance lnstituto de Geociencias(CSIC--UCM) c/fose Antonio Novais 1228040 MadridSpain Volcanology and Planetology UMR CNRS 8148 GEOPSUniversity of Paris-Saclay91405 OrsayFrance Departamento Ciencias de la Tierra Universidad de Zaragoza50009 ZaragozaSpain 18 rue des Fins 11570 CazilhacFrance 7 j.an-Baptiste Chardin Maquens11090 CarcassonneFrance

The Cambrian-lower Ordovician volcanic units of the South Armorican and Occitan domains are ana- lysed in a tectonostratigraphic survey of the French Variscan Belt. The South Armorican lavas consist of continental tholeiites in middle Camhrian-Furongian sequences related to continental break-up. A significant volcanic activity occurred in the Tremadocian, dominated by crustal melted rhyolitic lavas and initial rifting tholeiites. The Occitan lavas are distributed into five volcanic phases：（I） basal Cambrian rhyolites, （2） upper lower Cambrian Mg-rich tholeiites close to N-MORBs but crustal contaminated, （3） upper lower-middle Cambrian continental tholeiites, （4） Tremadocian rhyolites, and （5） upper lower Ordovician initial rift tholeiites. A rifting event linked to asthenosphere upwelling took place in the late early Cambrian but did not evolve. It renewed in the Tremadocian with abundant crustal melting due to underplating of mixed asthenospheric and lithospheric magmas. This main tectono-magmatic conti- nental rift is termed the ＂Tremadocian Tectonic Belt＂ underlined by a chain of rhyolitic volcanoes from Occitan and South Armorican domains to Central Iberia. It evolved with the setting of syn-rift coarse siliciclastic deposits overlain by post-rift deep water shales in a suite of sedimentary basins that fore- casted the South Armorican-Medio-European Ocean as a part of the Palaeotethys Ocean.

关键词： Gondwana margin Cambro-Ordovician volcanic activity Continental tholeiite Rheic Ocean Middle-European Ocean Palaeotethys Ocean

Effect of hydration on the surface basicity and catalytic activity of Mg-rare earth mixed oxides for aldol condensation

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j.urnal of Rare Earths 2018年第4期36卷 359-366页

作者： Zheng Wang pascal Fongarland Guanzhong Lu Wangcheng Zhan Nadine Essayem Key Laboratory for Advanced Materials and REsearch Institute of Industrial Catalysis School of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China Institut de REcherches sur la Catalyse et l'Environnement de Lyon(IRCELYON) CNRS-Universite Lyon 12 Avenue Albert Einstein69626 Villeurbanne CedexFrance

Magnesium and rare earth mixed oxides（Mg3 REOx（RE=La, Y. Ce）） were prepared and characterized by Xray diffraction（XRD）, N_2 adsorption-desorption, infrared spectra and microcalorimetry of CO_2. The results reveal that the Mg_3 CeO_x catalyst is present in the form of Mg-Ce-O solid solution,while the Mg3 LaOx and Mg_3 YO_x catalysts are probably rare earth oxides dispersed on MgO surface. As a result, among the calcined Mg_3 REO_x catalysts, the Mg_3 CeO_x catalyst presents the highest rate constant for acetone aldolization, which is well correlated to its more homogeneous distribution of basic sites. In contrary, the Mg_3 YO_x catalyst exhibit the lowest catalytic activity for acetone aldolization. Upon hydration pre-treatment, the basic properties on the surface of the Mg_3 REO_x catalysts were changed markedly. The Mg_3 YO_x catalyst after hydration treatment shows the highest amount of basic sites on catalyst surface, and then exhibits the highest activity among the hydrated Mg_3 REO_x catalysts. These results make it possible to fine-tune basic sites for acetone aldolization.

关键词： Mg-rare earth mixed oxide Hydration treatment Water tolerance Aldol condensation Solid base catalyst Rare earths

The Rion-Antirion bridge—when a dream becomes reality

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Frontiers of Structural and Civil Engineering 2011年第4期5卷 415-426页

作者： jacques COMBAULT 6-8 Avenue Blaise pascal CitéDescartes 77455 Champs-sur-Marne Marne la Vallée cedex 2 ParisFrance

Opened to traffic in August 2004,the RionAntirion Bridge crosses the Gulf of Corinth near Patras in western *** consists of an impressive multi cablestayed span bridge connected to the land by two *** exceptional combination of physical conditions made this proj.ct quite unusual:high water depth,deep strata of weak soil,strong seismic activity and fault *** addition a risk of heavy ship collision had to be taken into *** structure has been designed in view of challenging severe earthquakes and ensuring the everyday serviceability of the link as *** make the bridge feasible,innovative techniques had to be developed:The strength of the in situ soil has been improved by means of inclusions;the bridge deck has been suspended on its full length,and therefore isolated as much as it can be.

关键词： bridge multi cable-stayed spans soil reinforcement inclusions yield theory capacity design pushover dry dock wet dock

Roadside vehicle particulate matter concentration estimation using artificial neural network model in Addis Ababa,Ethiopia

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j.urnal of Environmental Sciences 2021年第3期33卷 428-439页

作者： Solomon Neway j.da j.an-François Hetet pascal Chesse Awoke Guadie Research Laboratory in Hydrodynamics Energetics&Atmospheric Environment(LHEEA)École Centrale de NantesNantes 44300France Department of Mechanical Engineering Faculty of Mechanical&Production EngineeringInstitute of TechnologyArba Minch UniversityArba Minch 21Ethiopia Key Laboratory of Environmental Biotechnology Research Center for Eco-Environmental Sciences Chinese Academy of SciencesBeijing 100085China Department of Biology College of Natural SciencesArba Minch UniversityArba Minch 21Ethiopia

Currently,vehicle-related particulate matter is the main determinant air pollution in the urban *** study was designed to investigate the level of fine(PM_(2.5))and coarse particle(PM_(10))concentration of roadside vehicles in Addis Ababa,the capital city of Ethiopia using artificial neural network *** train,test and validate the model,the traffic volume,weather data and particulate matter concentrations were collected from 15 different sites in the *** experimental results showed that the city average 24-hr PM_(2.5)concentration is 13%-144%and 58%-241%higher than air quality index(AQI)and world health organization(WHO)standards,*** PM_(10)results also exceeded the AQI(54%-65%)and WHO(8%-395%)*** model runs using the Levenberg-Marquardt(Trainlm)and the Scaled Conj.gate Gradient(Trainscg)and comparison were performed,to identify the minimum fractional error between the observed and the predicted *** two models were determined using the correlation coefficient and other statistical *** Trainscg model,the average concentration of PM_(2.5)and PM_(10)exhaust emission correlation coefficient were predicted to be(R^(2)=0.775)and(R^(2)=0.92),*** Trainlm model has also well predicted the exhaust emission of PM_(2.5)(R~2=0.943)and PM_(10)(R^(2)=0.959).The overall results showed that a better correlation coefficient obtained in the Trainlm model,could be considered as optional methods to predict transport-related particulate matter concentration emission using traffic volume and weather data for Ethiopia cities and other countries that have similar geographical and development settings.

关键词： Addis Ababa Artificial neural network PM prediction Roadside emission

The experience of caring for a dying client with intellectual disabilities. A qualitative study with direct-caregivers

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Open j.urnal of Nursing 2013年第8期3卷 568-575页

作者： Hanneke j. W. Bulsink j.an jacques Georges Department Clinical Health Sciences University Utrecht Medical Services Fatima Zorg The Netherlands University of Applied Sciences Utrecht The Netherlands

Background: Caregivers experience problems when caring for people with intellectual disabilities who are terminally ill. Aim: The aim of this study is to gain a deeper understanding of the experience of the caregiver when caring for a person with intellectual disabilities who is terminally ill and what influences this experience. Design: A qualitative research was carried out following the principles of Grounded Theory (GT) method, through fifteen interviews with caregivers in a living facility with continuous care. Results: The results show how caregivers strive to create meaningful moments for their client during the last period of his life. Since very few of the clients can clearly express their wishes and feelings, continuous observation is required of the caregivers for the interpretation of small signals of their clients. In that way, the appropriateness of their actions can be made certain. The results show that because of their involvement, caregivers are able to recognize clients’ signals. When a client is dying, the special atmosphere created on the ward contributes to coping with the situation and a positive experience. Conclusion: Direct-caregivers caring for a client with an intellectual disability who is terminally ill, experience an intense period of insecurity and also a special period meaningful when caring a dying client with intellectual disabilities. Their relationship with the client makes them to be more able to strive for client’s comfort. The results also show that some factors such as enough staff, clear and open communication with the physician and support of the manager contribute to the quality of palliative care on the ward.

关键词： Dying Intellectual Disability Palliative Care Caregivers Experiences

From granulite fluids to quartz-carbonate megashear zones:The gold rush

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Geoscience Frontiers 2014年第5期5卷 747-758页

作者： Bin Fu jacques L.R.Touret Research School of Earth Sciences The Australian National University Institut de Mineralogie.de Physique des Materiaux et de Cosmochimie(IMPMC) Sorbonne Universites UPMC Univ Paris 06.UMR CNRS 7590 Museum National d'Histoire Naturelle IRD UMR 206.4 Place Jussieu.F-75005 Paris.France

At peak granulite-facies metamorphic conditions, lower continental crust is arguably fluxed by large amounts of two key low water activity fluids：（i） high-density CO2 and/or （ii） concentrated saline so- lutions. These fluids are either internally-derived, generated by mineral reactions or dehydration melting or, notably for CO2, externally-derived, issued from the underlying mantle. Postmetamorphic evolution results in complete disappearance of these fluids, except for minute remnants preserved in minerals as fluid inclusions. Two maj.r processes are involved：（i） at peak conditions, granitoid magmas form, migrate upward, and crystallize as shallow intrusions in the upper crust （mineralized porphyry types or reduced intrusions）; （ii） during the rapid decompression which almost systematically follows a period of post-peak isobaric cooling, especially for ultrahigh-temperature granulites （anticlockwise P-T paths）, quartz-carbonate megashear zones are formed by repeated periods of seismic activity. Seismic activity may continue until all free fluids have disappeared, resulting in the ultramylonites and pseudotachylites that are found in many granulite domes. A great maj.rity of vein-type Au deposits worldwide occur in the above-mentioned settings or nearby. We suggest that the Au has been scavenged by the granulite fluids, then redistributed and concentrated during the formation of veins and related phenomena.

关键词： Granulite CO2 BrinesMegashear zonesAu mineralization

Vegetable Production After Flooded Rice Improves Soil Properties in the Red River Delta, Vietnam

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Pedosphere 2015年第1期25卷 130-139页

作者： Arij.P.EVERAARTS jacques j.NEETESON Pham T.T.HUONG Paul C.STRUIK Applied Plant Research Wageningen University and Research Centre Plant Research International Wageningen University and Research Centre Field Crop Research Institute Hai Duong and Hanoi University of Agriculture Centre for Crop Systems Analysis Wageningen University

Vegetable production in South East Asia often is in rotation with flooded rice. The puddling of the soil with flooded rice production may result in unfavourable soil conditions for the subsequent production of dry land crops. To establish whether permanent vegetable production results in favourable soil conditions for vegetables, the effects of five different permanent vegetable production systems and a system of vegetable production in rotation with flooded rice on soil properties after flooded rice were studied in a 2-year field experiment. Bulk density at 0.05–0.10 m depth layer decreased with permanent vegetable production and vegetable production in rotation with flooded rice. The decrease in bulk density was influenced by the application of organic manure and rice husks, and especially by the number of crops cultivated, suggesting that frequency of soil tillage had a maj.r effect on bulk density. Ploughing with buffalo traction after flooded rice, in combination with construction of raised beds, could reduce or totally eliminate negative effects of puddling on soil structure. Bulk density at 0.15–0.20 m soil depth was not influenced. Soil acidity decreased significantly in all systems. Soil organic carbon increased in all systems, but significant increase was only found in two permanent vegetable production systems. Available phosphorus(P) significantly increased in two permanent vegetable production systems, with a positively correlation to the amount of P applied. The significant decrease in bulk density and increase in p H(H2O), after only 2 years, showed that soil conditions after flooded rice could be improved in a short time under intensive vegetable production.

关键词： available phosphorus bulk density organic carbon puddling soil fertility soil improvement

Chemical Indicator of Spinel During Partial Melting and Subsolidus Equilibration of Mantle Peridotite:Experimental Study and Application to Natural Rocks

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Acta Geologica Sinica(English Edition) 1995年第4期69卷 420-435页

作者： jacques Kornprobst Daniel Vielzeuf Departement de Geologie et Mineralogie University Blaise Pascal63038 Clermont-Ferrand FranceDepartement de Geologie et Mineralogie University Blaise Pascal63038 Clermont-Ferrand France

Systematic experimental studies on partial melting and subsolidus equilibration of three reconstituted spinel-peridotites have been carried out at temperatures ranging from 1000 to 1380℃ and pressures of 1.0 and 1.5 GPa. The results shows (1) during partial melting, Mg# [=Mg/(Mg+Fe)]and Cr# [=Cr/(Cr-Al)]of spinel increase with an increase in degrees of melting) (2) during subsolidus equilibration, with increasing temperatures, Mg# of spinel increases but Cr# of spinel remains almost unchanged in dunite and increases slightly in Iherzolite and harzburgite. The negative and quasi-linear Mg# -Cr# correlation of spinel represents an isotherm of total non-equilibrium. The same results have been obtained by means of mathematical modelling. It is also proved by Mg# -Cr# correlation of spinel in natural peridotites. As a result of the spinel subsolidus equilibration, only variation of Cr# of spinel is limited, and then Cr# of spinel can be used to estimate the relative degree of melting undergone by host rocks. The bigger Cr# of spinel is, the higher the degree of melting will be. By contrast, during crystallization magma, Mg# and Cr# of spinel decrease with decreasing temperatures. Likewise, Cr# of spinel in basalts may be used to indicate the feature of Cr2O3/Al2O3 of magma, and the compositional zoning of spinel may be used to study the evolution of magma (cooling rate and contamination).

关键词： peridotite spinel partial melfing subsolidus equilibration experimental study and application