the present study utilizes an analytical method to formulate the three lowest modal frequencies of axially-loaded notched beam through both crack location and load level in a specific format that can be used in existing frequency-based crack-identification methods. the proposed formula provides a basis to shift into two states, one with axial loading and the other without any loading whatsoever...

We are building a wide-area location service that tracks the current location of mobile and replicated objects. The location service should support up to 1012 objects on a worldwide scale. To support this huge number of objects, the workload of the location service is distributed over multiple nodes. Our load distribution method is unique in that it is aware of the (geographical) location of no...

Position-based routing is a promising technology for VANET. And location service is the fundamental component for the success of position-based routing. A map-based location service algorithm is proposed in this paper. It uses a predesigned hash function to map a node to a certain location, where location servers are recruited. Hence any node in the network can find location servers of others, ...

We are building a wide-area location service that tracks the current location of mobile and replicated objects. The location service should support up to 1012 objects on a worldwide scale. To support this huge number of objects, the workload of the location service is distributed over multiple nodes. Our load distribution method is unique in that it is aware of the (geographical) location of no...

Location-aware applications require a geographic location service of Internet hosts. We focus on a measurement-based service for the geographic location of Internet hosts. Host locations are inferred by comparing delay patterns of geographically distributed landmarks, which are hosts with a known geographic location, with the delay pattern of the target host to be located. Results show a signif...

The Dynamic Host Configuration Protocol [2] provides a framework for passing configuration information to hosts on a TCP/IP network. Entities using the Service Location Protocol, Version 2 [3] and Service Location Protocol, Version 1 [4] need to obtain the address of Directory Agents and Scope configuration. The Service Location Protocol (SLP) provides a default configuration for Scopes and Dir...

We describe the implementation and evaluate the performance of a Replica Location Service that is part of the Globus Toolkit Versions 3.0 and 4.0. A Replica Location Service (RLS) provides a mechanism for registering the existence of replicas and discovering them. Features of our implementation include the use of soft state update protocols to populate a distributed index and optional Bloom fil...

A location based service (LBS) provides useful information to the users based on the geographic location the user designates or the user is currently located. Examples of LBS include directory service, gateway service, location utility service, presentation service, route service, and so on. These services are very useful to the users, and LBS should be available indoor: subways, large shopping...

While Location Based Services (LBS) can make our lives more comfortable and productive, it may cause an invasion of privacy by disclosure and commercial use of location information. In this paper, we discuss privacy and security problems that may happen in the current LBS system and propose solutions. We propose a new secure Web services architecture for LBS in wireless network. Our architectur...

In location problems for the public sector such as emergency medical service (EMS) systems, the issue of equity is an important factor for facility design. Several measures have been proposed to minimize inequity of a system. This paper considers an extension to the minimum p-envy location model by evaluating the objective of the model based on a survival function instead of on a distance funct...