Journal De Physique Iv最新文献

Wavelet reconstructions of solar magnetic activity 太阳磁活动的小波重构

Journal De Physique Iv Pub Date : 2006-12-01 DOI: 10.1051/JP4:2006139012

H. Lundstedt

引用次数: 1

Étude expérimentale de l'optimisation de la génération d'harmoniques d'ordre élevé par l'utilisation d'un algorithme génétique 利用遗传算法优化高阶谐波生成的实验研究

Journal De Physique Iv Pub Date : 2006-12-01 DOI: 10.1051/JP4:2006138005

C. Valentin, O. Boyko, G. Rey, Brigitte Mercier, E. Papalazarou, Laura Antonucci

引用次数: 2

Effet de la pression de mélange sur le rayonnement VUV du xénon dans le cas d'enseignes lumineuses sans mercure excitées en régime d'impulsions électriques 在电脉冲激发的无汞照明标识中，混合压力对氙气VUV辐射的影响

Journal De Physique Iv Pub Date : 2006-12-01 DOI: 10.1051/JP4:2006138013

S. Point, É. Robert, S. Dozias, C. Cachoncinlle, R. Viladrosa

引用次数: 1

Regional climate modeling: Status and perspectives 区域气候模式:现状与展望

Journal De Physique Iv Pub Date : 2006-12-01 DOI: 10.1051/JP4:2006139008

F. Giorgi

引用次数: 251

Réflectomètre à large spectre EUV pour la métrologie d'optiques 光学计量用EUV广谱反射计

Journal De Physique Iv Pub Date : 2006-12-01 DOI: 10.1051/JP4:2006138030

Ch. Hecquet, M. Roulliay, F. Delmotte, M.-F. Ravet-Krill, A. Hardouin, M. Idir

引用次数: 8

Reconciling adaptation and mitigation to climate change in agriculture$^{ast}$ 协调农业适应和减缓气候变化$ { ast}$

Journal De Physique Iv Pub Date : 2006-12-01 DOI: 10.1051/JP4:2006139026

J. Olesen

引用次数: 11

Water in the Earth's atmosphere 地球大气中的水

Journal De Physique Iv Pub Date : 2006-12-01 DOI: 10.1051/JP4:2006139005

M. Quante, V. Matthias

{"title":"Water in the Earth's atmosphere","authors":"M. Quante, V. Matthias","doi":"10.1051/JP4:2006139005","DOIUrl":"https://doi.org/10.1051/JP4:2006139005","url":null,"abstract":"Water is the key to our existence on this planet and it is involved in nearly all biological, geological, and chemical processes. Life on Earth depends very much on the remarkable properties of water. The availability of freshwater is for many regions one of the key concerns in connection with global climate change. The atmosphere contains only about 0.001% of the water available on our planet. Despite this small amount its horizontal and vertical distribution plays a key role in the global water cycle and the Earth's climate. The atmosphere has direct connections to most of the other reservoirs and steers the redistribution of water between them with an average turnover time of about 10 days. Evaporation over the oceans exceeds precipitation and over land evapotranspiration amounts only to 2/3 of the precipitation reaching the ground. Consequently, there is a net flux of water from the oceans towards the continents, of course via the atmosphere, which has the largest overall volume of fluxes. Water is present in the atmosphere as solid, liquid, or gas. Water vapour is the most important greenhouse gas in the atmosphere and, in addition, changes of water phase and cloud-radiation interaction contribute strongly to the global energy cycle. Water is also a physically and chemically integral part of other biogeochemical cycles. Although there have been large efforts and improvements in recent years, uncertainties in quantifying the components of the atmospheric water cycle still exist. Observational capabilities on the global scale are not satisfactory at present, but the advent of new satellites devoted to the global observation of precipitation and cloud systems along with dedicated modelling projects certainly will improve the situation. Progress is urgently needed to adequately contribute to the answer of one of the central questions in the context of global warming: Is the hydrological cycle accelerating'?","PeriodicalId":14838,"journal":{"name":"Journal De Physique Iv","volume":"14 1","pages":"37-61"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83908669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 22

Elemental speciation analysis, from environmental to biochemical challenge 元素物种形成分析，从环境到生化挑战

Journal De Physique Iv Pub Date : 2006-12-01 DOI: 10.1051/JP4:2006139019

P. Jitaru, C. Barbante

{"title":"Elemental speciation analysis, from environmental to biochemical challenge","authors":"P. Jitaru, C. Barbante","doi":"10.1051/JP4:2006139019","DOIUrl":"https://doi.org/10.1051/JP4:2006139019","url":null,"abstract":"Information regarding the distribution of metallic/metalloid chemical species in biological compartments is required for understanding their biochemical impact on living organisms. To obtain such information implies the use of a dedicated measurement approach, namely speciation analysis. The current trend in (elemental) speciation analysis regards bioinorganic applications. New analytical methodologies are therefore necessary for identification, detection and characterization of metal(loids) complexed or incorporated into biomolecules. The established element-speciation approaches developed for the determination of low molecular mass metal(loid) species (e.g. organometallic compounds) in environmental, food, toxicological and health sciences are presently being adapted for the determination of high molecular mass metal-species, generally related to biological processes. This is one of the newest approaches in terms of element speciation and is called metallomics; this concept refers to the totality of metal species in a cell and covers the inorganic element content and the ensemble of its complexes with biomolecules, particularly proteins, participating in the organisms' response to beneficial or harmful conditions. Compared to conventional elemental speciation analysis, the approach applied to bioinorganic analysis is challenging, particularly given the difficulties in identification/characterization of the organic (e.g. protein) content of such species. In addition, quantification is not feasible with the conventional approaches, which led to the exploitation of the unique feature of (post-column) online isotope dilution-mass spectrometry for species quantification in metallomics.","PeriodicalId":14838,"journal":{"name":"Journal De Physique Iv","volume":"12 5 1","pages":"269-294"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90173296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Dynamics of the West African monsoon 西非季风的动力学

Journal De Physique Iv Pub Date : 2006-12-01 DOI: 10.1051/JP4:2006139007

N. Hall, P. Peyrillé

引用次数: 78

Civil aircraft in global atmospheric chemistry research and monitoring 民用飞机在全球大气化学的研究与监测

Journal De Physique Iv Pub Date : 2006-12-01 DOI: 10.1051/JP4:2006139021

C. Brenninkmeijer

引用次数: 2