Search results for "vial"

Field Testing of a Simple Flume (SMBF) for Flow Measurement in Open Channels

2008

In this paper the stage–discharge relationship of a new flume named SMBF (Samani, Magallanex, Baiamonte, Ferro), originally proposed by Samani and Magallanez and tested by Baiamonte and Ferro, for measuring flow discharge in open channels is reviewed. The flume is obtained inserting two semicylinders in a rectangular cross section. The results of some experimental runs carried out using horizontal flumes characterized by different values of the contraction ratio (ranging from 0.17 to 0.81) are used for determining the two coefficients of the power stage–discharge equation. The stage–discharge equation is tested using flow measurements carried out in the period between December 2004 and Marc…

Una nota a la correspondencia de Valera: la fuente griega de una estrofa alemana citada por don Juan

1984

El 16 de enero de 1893, don Juan Valera, que acababa de sufrir un desaire urdido contra él por altos dignatarios de la diplomacia vaticana', era nombrado embajador en Viena. El 27 de febrero tomaba posesión, y el 21 de marzo presentaba sus credenciales ante S. M. Imperial. Unos meses después, el 29 de julio, escribe al dramaturgo Tamayo y Baus, refiriéndole, con todo lujo de detalles, los pormenores de la vida vienesa en sus vertientes frivola y social.

CCambios seculares de la agradacion aluvial y de la meandrizacion en la Ribera Alta del Xuquer

1992

Challenging Darwin: Evolution of Triassic Conodonts and Their Struggle for Life in a Changing World

2017

Abstract The phylogeny and distribution of Triassic conodonts reveal many aspects of their natural history. Conodonts incorporate the morphologic response to temperature as well as to eustatic cycles. Speciation, radiation, and extinction are not fortuitous and evolution uses heterochrony (progenesis and neoteny) in response to stress-generating events. Proteromorphosis (reappearance of ancestral morphs) and paedomorphosis (retention of juvenile traits) is a reaction to sublethal environmental stress. This often follows radiation of fully developed forms in the recovery stage after extinction that timely matches transgressions. Evolutionary retrogradation (neoteny) during eustatic high stan…

Dépôts carbonatés microbiens en domaine lacustre et fluviatile : fabriques et facteurs de contrôle

2020

The non-marine carbonates related to microbial activity display a large range of morphologies and compositions and accumulate in various settings (freshwater, alkaline, and saline lakes, fluvial environments, thermal and freshwater springs, …). The variety of non-marine microbial carbonates and their particularity led to propose numerous and complex terminologies and classifications, making their use complicated and restrictive for the interpretation of depositional settings. Mineralization of these carbonates results from the interaction between biotic factors (intrinsic) and environmental factors (extrinsic and external) at multi-scales. The first aim of this work was to characterize morp…

Modular representation theory and pi-algebras

1988

(1988). Modular representation theory and pi-algebras. Communications in Algebra: Vol. 16, No. 10, pp. 2043-2067.

Algunas microestructuras presentes en las costras calcareas del piedemonte de betera (provincia de valencia)

1988

Las formaciones aluviales que constituyen el piedemonte de betera, situado al norte de la provincia de valencia, presentan a techo de sus secuencias sedimentarias importantes acumulaciones carbonatadas. Las diferentes muestras que se han analizado desde un punto de vista micromorfologico, pertenecientes a las cinco macrofacies descritas en los perfiles seleccionados, permiten reconocer gran variedad de microestructuras. De todas ellas aqui se detallan las que aparecen con mayor frecuencia, tales como laminaciones, oolitica-pisolitica, grietas de retraccion y estructura de raices. Estas microestructuras sugieren condiciones subaereas en la genesis de las costras. (a)

Flood proofing measures cost-efficiency analysis for hydraulic risk mitigation in an urbanized riverine area.

2020

<div> <div> <div> <p><strong>Flood proofing measures cost-efficiency analysis for hydraulic risk mitigation in an urbanized riverine area</strong></p> <p>Ugo Ventimiglia <sup>2</sup>, Angela Candela <sup>1,</sup> Giuseppe Tito Aronica <sup>2</sup></p> <p><sup>1 </sup>Department of Engineering, University of Palermo, Palermo, Italy</p> <p><sup>2 </sup>Department of Engineerin…

Sedimentología y paleontología del yacimiento Finimioceno de La Portera (Valencia)

1986

14 páginas, 8 figuras, 1 tabla, 1 lámina.

Revealing the pace of river landscape evolution during the Quaternary: recent developments in numerical dating methods

2016

During the last twenty years, several technical developments have considerably intensified the use of numerical dating methods for the Quaternary. The study of fluvial archives has greatly benefited from these enhancements, opening new dating horizons for a range of archives at distinct time scales and thereby providing new insights into previously unanswered questions. In this contribution, we separately present the state of the art of five numerical dating methods that are frequently used in the fluvial context: radiocarbon, Luminescence, Electron Spin Resonance (ESR), 230Th/U and terrestrial cosmogenic nuclides (TCN) dating. We focus on the major recent developments for each technique th…