....etc

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Loads on Tunnels
• The most important potential loads acting on underground structures are earth/rock pressures and water pressure.
• Live loads due to vehicle traffic on the surface can be safely neglected, unless the tunnel is a cut and cover type with a very small depth of overburden.
• It may be generally stated, that the dimensioning of tunnel sections must be effected either against the overburden weight (geostatic pressure) or against loosening pressure (i.e. the weight of the loosened zone, called a ....etc

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I need seminar report on submerged floating tunnels ....etc

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Robotic System for Fire Fighting in Tunnels

Laura Celentano, Bruno Siciliano and Luigi Villani
Dipartimento di Informatica e Sistemistica
Universita degli Studi di Napoli Federico II
Via Claudio 21, 80125 Napoli, Italy



Abstract—

The problem of safety in tunnels is considered,
with particular concern to the vulnerability to fire. The important
role that robotics may play for fire fighting and preventing
is outlined and a robotic system, purposely designed for
tunnels, is ....etc

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PRESENTED BY,
DOOGE


SEMINAR ON APPLICATIONS OF WIND TUNNELS IN AEROSPACE AND AUTOMOBILE INDUSTRIES.
WHAT ARE WIND TUNNELS ?
 Wind tunnels are research tools developed to assist with studying the effects of air moving over or around solid objects .
 This study requires taking into account the Reynolds number and the Mach number.
PARAMETERS AFFECTING AN AIRPLANE
 Gravity pulls the plane down toward the ground.
 Lift pulls the plane up .
 Thrust moves the plane forward.
 D ....etc

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ENHANCED PERFORMANCE OF A DOUBLY FED
WIND-POWER INDUCTION GENERATOR AT WIND-
RANGE BOUNDARIES
ABSTRACT
The doubly fed induction generator (DFIG) is one of the largest generators used
with MW-class wind turbines. This paper focuses on the weak performance areas
of grid-connected DFIG-based wind turbines. Basically, the DFIG performance at
low wind speeds, close to the cut in speed, and around the full rating operation (in
the vicinity of rated wind speed) is investigated. For low wind speed region, the
c ....etc

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Pune - Satara Section of the National Highway NO.4 passes through Katraj Spur of the Western Mountain Range between Pune and Shirwal. Existing highway is a two-lane road with quite a few sharp bends and steep sections. Existing highway also passes through a 275 m long two-lane tunnel located in the Katraj Spur. In view of the space limitations it was considered that straightening out existing sharp curves was almost an impossible task. Further, it was considered that any work on the existing highway would cause hindrance to the present day heav ....etc

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Pune - Satara Section of the National Highway NO.4 passes through Katraj Spur of the Western Mountain Range between Pune and Shirwal. Existing highway is a two-lane road with quite a few sharp bends and steep sections. Existing highway also passes through a 275 m long two-lane tunnel located in the Katraj Spur. In view of the space limitations it was considered that straightening out existing sharp curves was almost an impossible task. Further, it was considered that any work on the existing highway would cause hindrance to the present day heav ....etc

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i want report on fire fighting robot in tunnels ....etc

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