labview and railway level crossings

A level crossing (UK and Commonwealth), Railway Crossing (Canada and Australia) or Railroad or Grade Crossing (U.S.A.) is an intersection where a railway line crosses a road or path at the same level, as opposed to the railway line crossing over or under using a bridge or tunnel. The term also applies when a light rail line with separate right-of-way or reserved track crosses a road in the same fashion. Other names include railway crossing, grade crossing, road through railroad, railroad crossing, and train ....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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Robotic System for Fire Fighting in Tunnels

Laura Celentano, Bruno Siciliano and Luigi Villani
Dipartimento di Informatica e Sistemistica
Universit a 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 presented. The ....etc

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ABSTRACT
VPN is virtual private network. It is a private network for voice and data built with carrier services. There are three definitions for VPN Voice VPN, Carrier-based voice/data VPN, Internet VPN. VPN offers a cost-effective alternative for data communication between intra-company offices, inter-company communications and remote access for domestic and international remote user and business partners.
INTRODUCTION
Traditionally, a VPN has been defined as a private network for voice and deter built with carrier serv ....etc

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INTRODUCTION
The Foreign Exchange Regulation Act, 1973 was reviewed in 1993 and several amendments were enacted as part of the ongoing process of economic liberalisation relating to foreign investment and foreign trade for closes interaction with the world economy. Significant development have taken place since 1993 such as substantial increase lours foreign exchange reserves , growth in foreign trade, nationalization of tariffs ,current account convertibility, liberalization of Indian investments abroad increase a ....etc

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Study and Modeling of the Mechanical Behavior of Hexagonal Metals

Introduction
Hexagonal close-packed (hcp) metals deform plastically by a variety of slip and twinning modes. The relative contribution of these mechanisms depends strongly on the material studied and the conditions, such as temperature, under which the deformation is performed. This work further elucidates the complicated competition and interactions between twinning and slip deformation modes for two hcp materials, namely zirconium and magnesium. The model presented here to ....etc

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Switch Architecture Guaranteeing QoS Provision and HOL Blocking Elimination

Abstract

QoS support and congestion management techniques become essential to achieve good network performance in current high-speed interconnection networks.
The most effective techniques traditionally considered for both issues, however, require too many resources for being implemented.
In this paper we propose new cost-effective switch architecture able to face the challenges of congestion management and, at the same time, to provide QoS.
The efficiency of o ....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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sub merged floating tunnels

Abstract
Several crossings with a variety of different conditions under which a Submerged Floating Tunnel, SFT or Archimedes Bridge, may be used. However, swell, vortex shedding and slowly varying internal waves due to layers of different salinity presented a hazard of significant dynamic oscillations. In addition to the challenge of these various conditions some common accidental situations have to be solved for all applications including fire, sinking ships, falling anchors as well as sudden massive water ingress ....etc

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sub merged floating tunnels

Abstract
Several crossings with a variety of different conditions under which a Submerged Floating Tunnel, SFT or Archimedes Bridge, may be used. However, swell, vortex shedding and slowly varying internal waves due to layers of different salinity presented a hazard of significant dynamic oscillations. In addition to the challenge of these various conditions some common accidental situations have to be solved for all applications including fire, sinking ships, falling anchors as well as sudden massive water ingress ....etc

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free ppt of tunnels

A tunnel is an underground or underwater passageway, dug through the surrounding soil/earth/rock and enclosed except for entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube construction techniques rather than traditional tunnel boring methods.
A tunnel may be for foot or vehicular road traffic, for rail traffic, or for a canal. The central portions of a rapid transit network are usually in tunnel. Some tunnels are aqueducts to supply water for consumption o ....etc

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ABSTRACT
As the virtual centre of excellence in mobile and personal communications (Mobile VCE) moves into its second core research programme it has been decided to set up a fourth generation (4G) visions group aimed at harmonising the research work across the work areas and amongst the numerous researchers working on the programme. This paper outlines the initial work of the group and provides a start to what will become an evolving vision of 4G. A short history of p ....etc

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free ppt of tunnels

A tunnel is an underground or underwater passageway, dug through the surrounding soil/earth/rock and enclosed except for entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube construction techniques rather than traditional tunnel boring methods.
A tunnel may be for foot or vehicular road traffic, for rail traffic, or for a canal. The central portions of a rapid transit network are usually in tunnel. Some tunnels are aqueducts to supply water for consumption o ....etc

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Analysis of soil classification using normalized piezocone parameters
Analysis of soil classification using normalized piezocone parameters

Introduction
The number of variables which influence cone tip resistance, penetration pore pressures, and CPT sleeve friction typically exceed the range of variables covered by databases of sites used for calibration of correlations for soil classification charts. Therefore, it is important to understand the mechanisms which influence piezocone parameters during the development of design recommendati ....etc

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Introduction

Pick up any newspaper today and it is a safe bet that you will find an article somewhere relating to mobile communications. If it is not in the technology section it will almost certainly be in the business section and relate to the increasing share prices of operators or equipment manufacturers, or acquisitions and take-overs thereof. Such is the pervasiveness of mobile communications that it is affecting virtually everyone s life and has become a major political topic and a significant contributor to nati ....etc

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