The transmission line towers are one of the important life line structures in the distribution of power from the source to the various places for several purposes. The predominant external loads which act on these towers are wind and earthquake loads. In this present study tower is analyzed using Indian Standards IS: 875:1987(Wind Load), IS: 802:1995(Structural steel), IS:1893:2002 (Earthquake)...

this paper develops new results on the use of model predictive control to regulate the attitude of a ground station antenna. two degree of freedom az-el pedestal is considered as ground station antenna. permanent magnet synchronous motors are taken into consideration as the best choice for satisfaction of control objectives as actuators. the design is based on a two cascade controller consist o...

In this study, constant-ductility optimization algorithm under a family of earthquake ground motions is utilized to achieve uniform damage distribution over the height of steel moment resisting frames (SMRFs). SMRF structures with stiffness-degrading hysteric behavior are modeled as single-bay generic frame in which the plastic hinge is confined only at the beam ends and the bottom of the first...

Nadie discute en la actualidad que los hospitales deben ser un ejemplo en promover entornos sin humo, y tomar la iniciativa en la aplicación de polı́ticas de control de tabaquismo dirigidas a sus pacientes, visitantes y trabajadores. Entre los beneficios de los espacios sin humo destacan la reducción del consumo de tabaco y la preparación para motivar el abandono entre los fumadores. Por todo es...

Many volcanic hazard factors--such as the likelihood and duration of an eruption, the eruption style, and the probability of its triggering large landslides or caldera collapses--relate to the depth of the magma source. Yet, the magma source depths are commonly poorly known, even in frequently erupting volcanoes such as Hekla in Iceland and Etna in Italy. Here we show how the length-thickness r...

Resumen ADICCIONES, 2015 · VOL. 27 NO. 2 · PAGES. 132-140 132 adicciones vol. 27, no. 2 · 2015 A pesar del gran incremento de la población inmigrante en los últimos años, su uso de alcohol está poco estudiado. Se describe la epidemiología del consumo de riesgo de alcohol en la población inmigrante residente en España, frente a la nativa. Se emplearon datos de 22188 respondentes a la Encuesta Eu...

While the mathematical development and solution of dynamic equations of motion for mechanical systems is readily accomplished by engineering students, physical insights based on these equations is not. Interactions of multiple degrees of freedom as well as the consequences of modeling assumptions for dynamic systems are especially difficult for many students to grasp. This paper presents a seri...