Many structures have their fundamental frequencies of vibration within the range
of frequencies where the energy of most of the earthquake ground motions is a maximum. In such cases a structure will amplify the ground vibrations and produce accelerations, which increases from the base of the structure to its top. Besides producing undesirable levels of acceleration in the structure, these amplified structural motions can cause large stresses in structural elements and large relative displacements between different parts of the structure. This ....etc

[:=Read Full Message Here=:]

Basalt is hard and tough, which has higher silicon content. Because basalt is hard to crush in actual crushing process, so, it has higher crushing cost. For this reason, crushing equipment and production line of basalt should be reasonably designed, which should take both investment cost and production cost into consideration. In crushing operation of basalt, consumption of jaw plate, plate hammer, impact plate and other wearing parts is very large. So, when choosing crushing equipment of basalt, customers should select crushing equipment with ....etc

[:=Read Full Message Here=:]

SEISMIC SENSOR


D. MOHAN KUMAR



This circuit simulates a seismic sensor to detect vibrations/ sounds. It is very sensitive and can detect vibrations caused by the movement of animals or human beings. So it can be used to monitor protected areas to restrict entry of unwanted persons or animals. The circuit uses readily available components and the design is straightforward. A standard piezo sensor is used to detect vibrations/sounds due to pressure changes. The piezo element act ....etc

[:=Read Full Message Here=:]

Bridges are lifeline structures. They act, as an important page link in surface transportation network and failure of bridges during a seismic event will seriously hamper the relief and rehabilitation work. There are many cases of damage of bridges in the past earthquakes all over the world. Due to their structural simplicity, bridges are particularly vulnerable to damage and even collapse when subjected to earthquakes. The fundamental period of vibration of a majority of bridges is in the range of 0.2 to 1.2 second. In this range, the structur ....etc

[:=Read Full Message Here=:]

whole reports on seismic sensor ....etc

[:=Read Full Message Here=:]

I just live in San Jose Plumbers Colorado and have been really working just for this method remarkable pipes corporation with respect to the exact final twelve years. It's San Jose Plumbing already been a real superb knowledge, nonetheless along with the current economy unable a lot them appears San Jose Plumbing Companies for instance unless of course We get started with acquiring even more online business the ....etc

[:=Read Full Message Here=:]

hi i am doing my engineering final year. I need some suggestions and ideas about doing a project based on
. A New Kind of Cluster based Key Management Protocol in Wireless Sensor Network

please help me friends ....etc

[:=Read Full Message Here=:]

DESIGN AND IMPLEMENTATION OF SEISMIC SENSOR


INTRODUCTION
1.1 Overview
There are two basic types of seismic sensors: inertial seismometers which measure ground motion relative to an inertial reference (a suspended mass), and strainmeters or extensometers which measure the motion of one point of the ground relative to another. Since the motion of the ground relative to an inertial reference is in most cases much larger than the differential motion withi ....etc

[:=Read Full Message Here=:]

i need all the information/material regarding what kind of bionanomaterials used for water treatment. ....etc

[:=Read Full Message Here=:]

plz give some introduction to seismic sensor..... ....etc

[:=Read Full Message Here=:]