958 resultados para 59-447A
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I have compiled CaCO3 mass accumulation rates (MARs) for the period 0-25 Ma for 144 Deep Sea Drilling Project and Ocean Drilling Program drill sites in the Pacific in order to investigate the history of CaCO3 burial in the world's largest ocean basin. This is the first synthesis of data since the beginning of the Ocean Drilling Program. Sedimentation rates, CaCO3 contents, and bulk density were estimated for 0.5 Myr time intervals from 0 to 14 Ma and for 1 Myr time intervals from 14 to 25 Ma using mostly data from Initial Reports volumes. There is surprisingly little coherence between CaCO3 MAR time series from different Pacific regions, although regional patterns exist. A transition from high to low CaCO3 MAR from 23-20 Ma is the only event common to the entire Pacific Ocean. This event is found worldwide. The most likely cause of lowered pelagic carbonate burial is a rising sea-level trend in the early Miocene. The central and eastern equatorial Pacific is the only region with adequate drill site coverage to study carbonate compensation depth (CCD) changes in detail for the entire Neogene. The latitude-dependent decrease in CaCO3 production away from the equator is an important defining factor of the regional CCD, which shallows away from the equatorial region. Examination of latitudinal transects across the equatorial region is a useful way to separate the effects of changes in carbonate production ('productivity') from changes in bottom water chemistry ('dissolution') upon carbonate burial.
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At first glance, the gallery seems to be empty. Upon entering however, 11:59 reveals itself to be masking tape placed lackadaisically in seemingly geometric forms. Enter the gallery at 11:59 and you would witness the light and shadows correlate with the gestural marks that have been made. Exploring ideas of time, space, gesture, value and mark-making, this work can be interpreted to be overflowing with confidence and/or impotence. It whispers about site and encounters, over-complication and simplicity, and boldness and hesitancy.
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The Ramberg-Osgood relation which adequately describes the stress-strain curve of a strain-hardening material is extended to formulate the constitutive laws for creep. The constitutive laws which describe primary creep adequately are extended to secondary creep. The results are verified for the case of R.R. 59 at 200°C, Nimonic 80A and Nimonic 90 alloys at 750°C.
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Editorial -- Sistema de jubilaciones y pensiones en América Latina: Reformas, paradigmas y temas emergentes / Fabio M. Bertranou -- No hay seguridad social sin gestión de calidad / Luis G. Bulit Goñi -- Reciprocidad jubilatoria / Pablo Casali -- El estrés ocupacional. Un nuevo desafío para los sistemas de protección de los trabajadores / David A. Martínez ; Marcela Vargas Gómez -- El financiamiento de los futuros sistemas de pensiones / Ariel G. Pino -- Las reformas de los regímenes de la previsión social brasileña de 1998 a 2003 / María Beatriz da Cunha Fernándes -- Formulación de un sistema de protección social en Colombia / Gina Magnolia Riaño Barón -- Levantamiento de información desagregada del sistema de pensiones chileno: encuesta “Historia laboral y seguridad social” e Historias previsionales / Ximena Quintanilla D. -- Los servicios sociales. Algunas experiencias en España y el Cono Sur / Ana María Talmon -- Apéndice -- In Memoriam -- Recensiones
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Monografia (especialização) – Curso de Parlamento e Direito, Câmara dos Deputados, Centro de Formação, Treinamento e Aperfeiçoamento (Cefor), 2015.
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This partial translation of a longer article describes the phenomenon of ”Blasensand”. Blasensand is formed when sedimentation of dried out sand is suddenly flooded from above. A more detailed explanation of Blasensand is given in this translated part of the paper.
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Morphological observations on the two types of Pseudospora are given. The two Pseudospora whic are described are Pseudospora eudorini and Pseudospora volvocis. The systematic classification of the genus Pseudospora is discussed.
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In this paper, a highly efficient Ti:sapphire end-pumped 1 at.-% Nd:YAG ceramic laser that is comparable in efficiency with Nd:YAG single crystal lasers has been developed. Optical absorption and emission spectra for Nd:YAG ceramics have been measured. With 673-mW pumping, 295-mW laser output at 1064 nm has been obtained. The laser threshold is only 13 mW. Deducted the transmitted light, the corresponding optical-to-optical conversion efficiency is 58.4%. The lasing characteristics of Nd:YAG ceramic are nearly equal to those of Nd:YAG single crystal.