La relation entre la structure et la fonction d'un anticorps homogène anti-micrococcus lysodeikticus

Doctorat en Sciencesinfo:eu-repo/semantics/nonPublishe

La relation entre la structure et la fonction d'un anticorps homogène anti-micrococcus lysodeikticus

Doctorat en Sciencesinfo:eu-repo/semantics/nonPublishe

Note sur la nidification de Megachile pyrenea Pérez

La biologie de Megachile pyrenea PÉREZ a été fort peu étudiée Jusqu’ici. FERTON (1896, p. 9 et 1908, p. 550) relate avoir découvert à Château-Thierry, dans une tige sèche d\u27une plante herbacée, un nid de 3 ou 4 cellules faites chacune de deux sortes de feuilles: l\u27acacia et une rosacée du groupe du sanguisorbier. GRANDI (1928, VI, p. 9) a constaté dans les nids desséchés qu\u27il a examinés, que les cellules étaient construites de morceaux de feuilles de Rosa pomifera? Enfin, NIEMELÄ (1936, p. II) signale qu\u27en Finlande M. pyrenea niche dans la terre, sous les pierres, etc. et qu\u27elle exploite les feuilles du bouleau

Jerry Wenzinger 01

This photograph of Jerry Wenzinger was taken during an interview that was collected as part of the Launching through the Surf: The Dory Fleet of Pacific City project.https://digitalcommons.linfield.edu/dory_photos/1142/thumbnail.jp

Identification of Dinantian as Potential Geothermal Reservoir in the Roer Valley Graben by Gravity and Magnetic Modeling

Exploration for ultra-deep (>4 km depth) geothermal reservoirs in the Netherlands subsurface heavily depends on the full exploitation of existing subsurface data before spending on new data sets will be commissioned. Especially the Carboniferous and Permian formations host proven oil and gas reservoirs and are therefore targets of the ultradeep geothermal exploration. By means of an integrated approach exploiting several geophysical and geological data sets in one modelling environment, we demonstrate that several kilometers of sediments have been deposited and preserved below the Upper Triassic in the Roer Valley Graben. These formations are out-of-reach of the existing seismic data and well data. Our approach that we present in this paper entails: 2D gravity and magnetic modelling constrained by seismic interpretation that in turn has been tied to reprocessed velocity and density well log data and additional information on Moho and intra-crustal discontinuity depth from recent studies done by others

Novel Log Upgrading Method to Improve Seismic-to-Well Matches with Application on Hydrocarbon and Geothermal Exploration

The use of seismic well logs such as sonic and density for well-to-seismic matching, seismic interpretation, inversion and 3D model building is well known. Generally, the depth-to-time conversion is done using the standard checkshot correction. Both errors in the VSP/checkshot first-break picking as well as the seismic logs make this process error prone. To improve the understanding of the subsurface and get the maximum value out of broadband seismic data and seismic diffraction imaging, this paper presents a novel and robust log repair and upgrading methodology to transform well data (seismic logs and VSP/checkshots) into a complete and realistic velocity and density profile from surface to TD. A case study from the south of the Netherlands (well Heeswijk-01) is used to analyse the performance of the proposed new methodology. Comparison of the original logs after checkshot correction and the upgraded and integrated logs show a dramatic improvement in the seismic-to-well match. Application of this promising log upgrading methodology in both oil & gas and geothermal projects around the world is thus appropriate in order to get more value out of expensive wells and seismic data