987 resultados para St. Louis, Missouri


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At head of title: Geological survey of Missouri. Arthur Winslow, state geologist.

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Mode of access: Internet.

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List of members in each volume

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This paper presents the details of a numerical study of a cold-formed steel beam known as LiteSteel Beam (LSB) subject to combined shear and bending actions. The LSB sections are produced by a patented manufacturing process involving simultaneous cold-forming and electric resistance welding. They have a unique shape of a channel beam with two rectangular hollow flanges. To date, however, no investigation has been conducted into the strength of LSB sections under combined shear and bending actions. Hence a numerical study was undertaken to investigate the behaviour and strength of LSBs subject to combined shear and bending actions. In this research, finite element models of LSBs were developed to simulate the combined shear and bending behaviour and strength of LSBs. They were then validated by comparing their results with test results and used in a parametric study. Both experimental and finite element analysis results showed that the current design equations are not suitable for combined shear and bending capacities of LSBs. Hence improved design equations are proposed for the capacities of LSBs subject to combined shear and bending actions.

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This LiteSteel beam (LSB) is a new cold-formed steel hollow flange channel section produced using a patented manufacturing process involving simultaneous cold-forming and dual electric resistance welding. The LSBs are commonly used as floor joists and bearers with web openings in buildings. Their shear strengths are considerably reduced when web openings are included for the purpose of locating building services. Shear tests of LSBs with web openings have shown that there is up to 60% reduction in the shear capacity. Hence there is a need to improve the shear capacity of LSBs with web openings. A cost effective way to eliminate the shear capacity reduction is to stiffen the web openings using suitable stiffeners. Hence numerical studies were undertaken to investigate the shear capacity of LSBs with stiffened web openings. In this research, finite element models of LSBs with stiffened web openings in shear were developed to simulate the shear behaviour and strength of LSBs. Various stiffening methods using plate and LSB stiffeners attached to LSBs using both welding and screw-fastening were attempted. The developed models were then validated by comparing their results with experimental results and used in further studies. Both finite element and experimental results showed that the stiffening arrangements recommended by past research for cold-formed steel channel beams are not adequate to restore the shear strengths of LSBs with web openings. Therefore new stiffener arrangements were proposed for LSBs with web openings. This paper presents the details of this research project using numerical studies and the results.

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Cotoneaster pannosus (Rosaceae), an ornamental shrub native to China, is reported for the first time in Tarragona Province (Catalonia, Spain). Data on demography and accompanying species for the new locality are provided, in addition to a chrorological update at nation level.

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Entré à la Bibliothèque du roi en 1732 parmi les mss. de Jean-Baptiste Colbert; cf. Delisle, Cab. des mss., I, 439-547; Omont, Concordances des mss. latins, 48-77; — n° 5 du "Catalogue des mss. envoyez par M. Boudon & portez dans la bibliotheque de Monseigneur le 10. decembre 1680... Registre de st Louis & de Philippe le Hardy"; cf. latin 9364, f. 53-54; Delisle, Cab. des mss, I, 473

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Contient : « Journal des choses qui se sont faittes et passées dans l'Ordre militaire de St-Louis... » (1693-1705) ; « Expéditions de l'Ordre de St-Louis en faveur des officiers de la marine et des galères, en exécution de l'édit de création, du mois d'avril 1693, » et autres pièces relatives au même ordre, jusqu'en 1710 ; « Mémoire des registres manuscripts concernant la guerre et autres matières, qui ont est faits pendant l'année 1716 » ; « Mémoire général des registres manuscripts contenant les minuttes des ordres et despesches du Roy concernant la guerre, règlement de limittes, fortiffications, etc., qui sont au dépost à l'Hostel royal des Invalides, depuis l'année 1663 jusqu'en 1701 » ; Extraits du « registre des minuttes des despesches escrites par ordre du Roy sur les sièges de Philisbourg, Manheim et Francandal par Mgr. le Dauphin, en 1688 ; » et autres registres jusqu'en 1697 ; Relation des révolutions de la cour de Siam, [par Pinsonneau]. (1693)

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Este estudio de caso tiene como objetivo determinar las implicaciones del flujo de población refugiada en la implementación de la política de libre circulación de la CEDEAO; tomando como referente el flujo desde Liberia hacia Ghana generado por la Guerra Civil. Esta investigación defiende que las implicaciones pueden estar relacionadas a las dinámicas que se asocian al movimiento de personas, las cuales pueden ser negativas o positivas, razón por la cual los Estados pueden reaccionar endureciendo las políticas migratorias, la obtención de permisos laborales y de residencia, y el cierre de fronteras o la expulsión de refugiados; con el fin de evitar consecuencias a nivel político, económico o en materia de seguridad. Para comprobar lo anterior se va a realizará un análisis de texto, sobre posiciones nacionales y políticas comunitarias, así como una revisión de estudios y estasticas relacionados con el tema.

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This paper studies trends in the use of diagnostic auditory brainstem response (ABR) at St. Louis Children's Hospital from 1984 to 2001 in light of legislative changes in Missouri mandating screening for hearing loss in all newborns beginning January 1, 2002.

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