Alrededor del torno

La meta propuesta en la elaboración de este libro de datos para la industria del cemento era lograr una descripción, lo más general y concisa posible, de los métodos de fabricación, de las máquinas y de los datos numéricos, diagramas y tablas de valores, Con esta limitación a lo más importante, el ingeniero dedicado al cemento dispondrá de bases válidas para su constante y rápida consulta.

El plan para la exposición de materias en esta obra se ha establecido según el principio de ordenación siguiente: Forma, función y modo de acoplar las piezas. Se ha podido de este modo resumir y ordenar ampliamente las materias y hacer muchas referencias a las relaciones entre unas y otras.

Underground structures must be able to support static overburden loads, as well as to accommodate additional deformations imposed by seismic motions. It seems well established that the most critical demand to the structure is caused by shear waves traveling perpendicular to the tunnel axis, which cause distortions of the cross section (ovaling for a circular tunnel, and racking for a rectangular tunnel) that result in axial forces (thrusts) and bending moments. While all this has been well-studied for structures placed in linear-elastic ground under drained loading conditions, there is little ...

Now available in Spanish, AWWA manual, Emergency Planning for Water Utilities, 3e (M19) presents techniques for developing contingency plans for a variety of emergencies from natural disasters to human-caused crises. The manual explains how to develop an emergency preparedness plan, how to identify vulnerabilities in your water system, and how to determine how a disruption would likely impact service. The manual includes a separate, 20-page booklet section "Security Analysis & Response for Water Utilities," which provides guidance in hazard assessment, vulnerability assessment, mitigation,...