检索结果-南通市图书馆

Influence of ship emissions on NOx, SO2, O3 and PM concentrations in a North-Sea harbor in france

Journal of Environmental Sciences 2018年第9期30卷 56-66页

作者： Frederic Ledoux Cloe Rochet Fabrice Cazier Charles Beaugard Dominique Courcot Unit of Environmental Chemistry and Interactions with Life UCEIV EA4492 SFR Condorcet FR CNRS 3417 University of the Littoral OpalCoast F-59140 Dunlterque France Centre Commun de Mesures University of the Littoral Opal Coast F-59140 Dunkerque France Atmo Hauts-de-france F-59800 Lille France

The influence of in-port ship emissions on gases and PM10 concentrations has been estimated in the port city of Calais, northern france, one of the busiest harbor in Europe, with numerous rotations of ferries or roll-on/roll-off cargo in average per day. NOx, SO2, O3 and PM10 concentrations were continuously measured over a three-month period, as well as real-time particle size distribution. A rural site located at Cape Gris-Nez, 20 km from Calais, was considered to deduce intrinsic contribution of ship emissions at the harbor city. The average concentrations of the studied species as well as the pattern of the conditional bivariate probability function at the two sites evidenced that in-port shipping, especially during the maneuvering operations, has an important influence on the NOx and SO2 concentrations. The impact of shipping in the harbor of Calais on average concentrations was estimated to 5l% for SO2, 35% for NO, 15% for NO2 and 2% for PM10 in the studied period. Concentration peaks of SO2 and NOx associated with an 03 depletion appeared synchronized with departures and arrivals of ferries. For winds blowing from the harbor, when compared to the background level, the number of particles appeared 10 times higher, with the highest differences in the 30-67 nm and the 109-167 nm size ranges. The average impact of in-port ships on PM10 concentrations was estimated to ＋28.9 μg/m^3 and concerned mainly the PM1 size fraction （40%）. Punctually, PM10 can potentially reach a concentration value close to 100μg/m^3.

关键词： Ships Emissions Harbor Gases Particles Air pollution

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Soil chemical fertility change over four decades in the Morvan Mountains and influence of tree species (Burgundy, france)

引用

Forest Ecosystems 2022年第4期9卷 460-474页

作者： Margaux Clesse Arnaud Legout Jacques Ranger Bernd Zeller Gregory van der Heijden INRAE BEFF-54000NancyFrance

Background: Intensive silvicultural practices and the planting of monospecific forests of coniferous, that are more productive compared to hardwoods may threaten over the mid to long-term the sustainability of soil chemical fertility of forest ecosystems, and are a major concern for forest managers and ***: We investigated the tree species effect(Quercus sessiliflora Smith, Fagus sylvatica L., Picea abies Karst.,Pseudotsuga menziesii Mirb. Franco., Abies nordmanniana Spach. and Pinus nigra Arn. ssp. laricio Poiret var. corsicana) on the change over time of soil chemical properties and nutrient pool sizes in the mineral and organic layers of the soil during the 45 years after the plantation of the Breuil-Chenue common garden experiment(Burgundy,france). The organic and mineral soil layers down to 70-cm depth were sampled in the different monospecific plots in 1974, 2001 and ***: Exchangeable Ca and Mg pools and soil pH increased on average over time in the 0–70 cm soil profile in most stands. However, in the topsoil layers(0–15 cm), the decrease of pH, the increase of exchangeable acidity over time under the coniferous stands and the decrease of exchangeable K pools in most stands highlighted that soil acidification is still on-going at Breuil-Chenue site but the intensity of this process depends on the tree ***, three groups of species could be distinguished: i) Nordmann fir(Abies nordmanniana Spach.)/Norway spruce(Picea abies Karst.) where acidolysis and chelation occurred, resulting in the most pronounced pH decrease in the topsoil, ii) Douglas fir(Pseudotsuga menziesii Mirb. Franco.)/Laricio pine(Pinus nigra Arn. ssp. laricio Poiret var. corsicana) where acidification caused by elevated nitrification rates is probably currently compensated by larger weathering and/or atmospheric depositions fluxes, and iii) oak(Quercus sessiliflora Smith)/beech(Fagus sylvatica L.) where soil acidification was less intense. Counterintuitively, soil a

关键词： Nutrient pools Tree species Acidification Podzolisation Recovery Ecosystem services

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Audit pricing and nature of controlling shareholders:Evidence from france

引用

China Journal of Accounting Research 2013年第1期6卷 21-34页

作者： Chiraz Ben Ali Cdric Lesage IPAG Business School France HEC Paris France

This study examines whether auditors are employed as a monitoring mechanism to mitigate agency problems arising from different types of controlling shareholders. In a context of concentrated ownership and poor investor protection, controlling shareholders can easily expropriate wealth from minority shareholders and profit from private benefits of control. However, this agency conflict has been rarely studied, as the most commonly assumed agency conflict occurs between managers and shareholders. Using an audit fee model derived from , we study the impact of the nature of controlling shareholders on audit fees in French listed firms. Our results show: (1) a negative relationship between audit fees and government shareholdings; (2) a positive relationship between audit fees and institutional shareholdings; and (3) no relationship between audit fees and family shareholdings. These results illustrate the mixed effects of the nature of ownership on audit fees.

关键词： Audit fees Controlling shareholder identity Minority expropriation Agency conict

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Generalisation,symbol specification and map evaluation:feedback from research done at COGIT laboratory,IGN france

引用

International Journal of Digital Earth 2011年第S1期4卷 25-41页

作者： C.Duchenea S.Christophe A.Ruas COGIT Laboratory Institut Geographique NationalSaint-MandeFrance Laboratory of Informatics Grenoble(LIG) J.Fourier UniversityGrenobleFrance

This paper presents an overview of research studies made at the COGIT laboratory of IGN france in the fields of generalisation and symbol specification,particularly considering evaluation *** then discusses how generalisation and symbol specification *** it explores some possible adaptations of the presented works in generalisation and symbol specification to cartography in the context of crisis management.

关键词： automated cartography generalisation evaluation semiotics symbol specification

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rôles et vécus des pharmaciens d’officine dans les soins palliatifsàdomicile en france Role and Experience ofCommunity Pharmacists in Home Palliative Care in france

引用

Psycho-Oncologie 2024年第3期18卷 181-190页

作者： Isabelle Cuchet Michael Dambrun Axelle Van Lander ACCePPT LAPSCOUniversitéClermont AuvergneClermont-Ferrand63001France LAPSCO UniversitéClermont AuvergneClermont-Ferrand63001France ACCePPT UniversitéClermont AuvergneClermont-Ferrand63001France

The need for home palliative care is increasing in allWestern *** pharmacists are local professionals whose role in end-of-life care at home remains poorly *** aim of this study is to understand how community pharmacists see their role in end-of-life home care in france,and to analyze their experiences of this *** online questionnaire was distributed to community pharmacists working in france between December 2022 and March *** the 136 respondents to the questionnaire,87%had accompanied at least one patient at the end of life in the 3 months preceding the *** education(88%of respondents),psychological support for caregivers(85%of respondents),securing treatment(82%of respondents)and monitoring therapeutic compliance(80%of respondents)are the behaviors validated by the greatest number of *** majority of professionals surveyed had a positive overall experience of managing patients at the end of *** results pave the way for pharmacists to better support end-of-life patients at home.

关键词： Palliative care home community pharmacists end-of-life support

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Decline of semen quality among 10 932 males consulting for couple infertility over a 20-year period in Marseille, france

引用

Asian Journal of Andrology 2012年第4期14卷 584-590页

作者： Cendrine Geoffroy-Siraudin Anderson Dieudone Loundou Fanny Romain Vincent Achard Blandine Courbibre Marie-He1ene Perrard Philippe Durand Marie-Roberte Guichaoua Reproduction Biology Laboratory Conception Hospital AP-HM Marseille 13005 France Aix-Marseille University UMR CNRS IMBE 7263 Faculty of medicine of Marseille Marseille 13005 France Department of medical information Conception Hospital AP-HM Marseille 147 Bd Baille Marseille 13005 France Health Laboratory Faculty of Medicine of Marseille Marseille 13005 France Centre of Assisted Reproductive Technique (CPMA) Conception Hospital AP-HM Marseille 13005 France Functional Genomic Institute of Lyon CNRS INRA ENS of Lyon Lyon 69007 France

Semen from 10 932 male partners of infertile couples was analysed and sperm parameter trends were evaluated at the Reproduction Biology Laboratory of the University Hospital of Marseille （france） between 1988 and 2007. After 3-6 days of abstinence, semen samples were collected. Measurements of seminal fluid volume, pH, sperm concentration, total sperm count, motility and detailed morphology of spermatozoa were performed. Sperm parameters were analysed on the entire population and in men with normal total numeration （〉~ 40 million per ejaculate）. The whole population demonstrated declining trends in sperm concentration （1.5% per year）, total sperm count （1.6% per year）, total motility （0.4% per year）, rapid motility （5.5% per year） and normal morphology （2.2% per year）. In the group of selected samples with total normal sperm count, the same trends of sperm quality deterioration with time were observed. Our results clearly indicate that the auality of semen decreased in this population over the study period.

关键词： environment male infertility regional differences semen quality sperm parameters

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Psychological distress during the COVID-19 pandemic in france:a national assessment of at-risk populations

引用

General Psychiatry 2020年第6期33卷 400-405页

作者： Benjamin Chaix Guillaume Delamon Arthur Guillemasse Benoit Brouard Jean-Emmanuel Bibault ENT Department Hopital Gui de ChauliacMontpellierFrance University Montpellier 1 MontpellierFrance Hopital Pite-Salpetriere WefightBrain&Spine InstituteParisFrance Department of Radiation Oncology Hopital Europeen Georges Pompidou CancerologieParisFrance

Background Lockdowns were implemented to limit the spread of *** distress(PD)and post-traumatic stress disorder have been reported after traumatic events,but the specific effect of the pandemic is not well *** The aim of this study was to assess PD in france,a country where C0VID-19 had such a dramatic impact that it required a country-wide *** We recruited patients in four groups of chatbot users followed for breast cancer,asthma,depression and *** used the Psychological Distress Inventory(PDI),a validated scale to measure PD during traumatic events,and correlated PD risk with patients*characteristics in order to better identify the ones who were the most at *** The study included 1771 participants.91.25%(n=1616)were female with a mean age of 32.8(13.71)years and 7.96%(n=141)were male with a mean age of 28.0(8.14)*** total,38.06%(n=674)of the respondents had psychological distress(PDI>14).An analysis of variance showed that unemployment and depression were significantly associated with a higher PDI *** using their smartphones or computers for more than 1 hour a day also had a higher PDI score(p=0.026).Conclusion Prevalence of PD in at-risk patients is *** patients are also at an increased risk of developing post-traumatic stress *** steps should be implemented to monitor and prevent PD through dedicated mental health policies if we want to limit the public health impact of COVID-19 in time.

关键词： distress steps limit

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Application of systems engineering for development of multifunctional metro systems:Case study on the fifth metro line of the Lyon metro,france

引用

Underground Space 2021年第1期6卷 24-34页

作者： Nicolas Ziv Andrea Kindinis Jeremie Simon Christophe Gobin Universite Paris-Est Institut de Recherche en ConstructibiliteESTPF-94230 CachanFrance Egis Rail 170 Avenue ThiersF-69006 LyonFrance

Several studies,from both the private sector(McKinsey,Engie,and EY)and international organizations(OECD,World Bank,and IMF),have shown that urban population in cities will grow in the coming *** growth implies an increased pressure on all urban networks-transporting people,goods,water,waste,electricity,information,heat,and so *** functions are executed by urban infrastructures entailing huge *** have dedicated our research to the optimization of infrastructures and more precisely of metro systems to offer global solutions to fulfill city needs-the multifunctional *** innovative multifunctional metro system incorporates several other urban networks—optical fiber,high-voltage electric cables,water and sewage pipes,geothermal piles,pneumatic systems,merchandise shuttles,and many others depending on the context of each *** aim of the multifunctional metro is to meet several needs of cities with one common *** a function to a system increases its *** this reason,we focus our research on the application of methods that allow better management of the complexity:systems engineering applied to *** the first part of the paper,we will present a benchmark of multipurpose infrastructures across the world and the benefits of such a system for *** the second part,we will present and illustrate the concept of the multifunctional ***,we will present the method based on systems engineering to analyse multifunctional ***,the concept of a multifunctional metro is illustrated with a case study on the future fifth metro line of Lyon,*** conclusion,we will discuss the current barriers for the development of multifunctional infrastructures.

关键词： Multifunctionality Systems engineering Infrastructure Underground Metro

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Characterizing historical(1992–2010) transitions between grassland and cropland in mainland france through mining land-cover survey data

引用

Journal of Integrative Agriculture 2015年第8期14卷 1511-1523页

作者： Ying Xiao Catherine Mignolet Jean-Fran?ois Mari Marc Beno?t INRA SAD UPR 055 ASTER 662 Avenue Louis BuffetMirecourt 88500 France Université de Lorraine LORIA UMR 7503Vandoeuvre-lès-Nancy 54506 France

Grassland, as one of the largest ecosystems on the earth, supports various goods and services to ***, humans have increased agricultural output primarily by cropland expansion and agricultural *** cropland area was primarily gained at the expense of grassland and *** from grassland conversion, increasing consumption of calorie- and meat-intensive diets drives the intensification of livestock systems, which is shifting steadily from grazing to feeding with *** cope with the environmental degradation due to agriculture, various forms of ‘green payment＇ were implemented to promote the adoption of sustainable farming practices over the last two decades in the European *** aim of this study is to monitor the recent transitions（1992–2010） between grassland and cropland during two Common Agricultural Policy（CAP） reforms at the French mainland *** proposed an innovative approach to link grassland conversion to agricultural commodities and farming systems *** first assessed the grassland-to-cropland conversion and further investigated the crop sequence patterns that were observed to be dominant after the conversion through mining land-cover survey data Teruti and *** found the trends of the transitions between grassland and cropland over the two time intervals： The loss of grassland（1992–2003） and restoration or re-expansion of grassland（2006–2010） in mainland *** finding on the crop sequence patterns after the grassland conversion reveals two notable evolutions of agricultural production *** evolutions were related to the increase in the proportion of cropland in the total agricultural land *** evolution was most likely influenced by the demand for fodder： The conversion from grazing livestock to feeding *** evolution was the conversion from livestock production to field crop *** results indicate that the intensification of livestock farming systems

关键词： conversion crop sequence patterns land-cover survey agricultural land-use change

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Review of the development and uses of hard grade asphalts in france

引用

Journal of Road Engineering 2021年第1期1卷 73-79页

作者： Jean-Francois Corte Directorate of Transport Infrastructures Ministry of TransportLa Defense 92055France

Hard grade paving asphalts,i.e.,having a penetration at 25C lower than 25 mm/10,have experienced,in france,a significant development over the last forty years,linked to the development of high modulus asphalt concrete for rehabilitation then for new construction of road *** the first part,this paper provides a review of the evolution of asphalts in france over the past sixty years towards the use of harder penetration grades and a limitation of the evolution of the asphalt in the mixing plant to avoid early cracking of the *** recommendations in relation to climatic conditions are *** characteristics of different hard asphalts produced in france are presented including data on the effect of ageing tests rolling thin film oven test(RTFOT)and pressure ageing vessel(PAV).Hardening of hard asphalt after RTFOTþPAV is comparable to that of softer *** performance related to low temperature cracking is less which limits the use of plain hard asphalt in pavements subjected to severe winter conditions and requires polymer *** specifications for hard grade paving asphalts based on traditional empirical tests included in the European standard developed in the mid 2000s and the choices made in france are presented.A comparison of the specifications for hard grade paving asphalts in the European standards and of those proposed for China shows that the European specifications are more stringent as regards consistency and evolution after ageing tests.

关键词： Asphalt Hard grade Rheology Standard

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：