Security is very necessary for secure operations in wireless sensor networks (WSNs), especially in hostile environments. To achieve security, key agreement needs to be implemented efficiently among communicating nodes. Nonetheless, acquiring such key agreement in WSNs becomes extremely intricate due to resource constraints. Among approaches so far, key predistribution approach is considered as ...

Despite substantial evidence describing the overall causes of U.S. food insecurity, in-depth explorations single communities remain important, to understand geographic variation and identify locally responsive solutions. In one affluent Pennsylvania county, we conducted a mixed-methods community security assessment, with pantry member surveys, interviews coordinators stakeholders, community-wid...

In this paper, we survey the state-of-the-art in the development of automated visual surveillance systems and discuss on how this can be applied for the national security. Video surveillance system is the very complex task that needs to combine multiple technologies together. We summarize the progress of this technology in term of sensor and devices, infrastructure, and intelligent technologies...

Many industrial optimization problems require high computational power and hence are ideally executed in a Grid environment. Since the development and configuration of Grid Services – especially the security configurations – is a very complex task, an engineer needs – besides deep knowledge in his/her application domain – knowledge in configuring the Grid middleware. Since setting up the Grid m...

Monitoring a number of security cameras by security guards suffers from a number of difficulties especially when the events to be watched for may take months to occur or a large number of cameras exist. Furthermore, finding and hiring people for such tasks is usually expensive. Therefore, there are immediate needs for automated surveillance systems that save money, work in a preventive way and ...

Security has been proven a crucial factor in the provision of data services and especially in the computer-related environments. While wired and wireless networks come to all sectors of everyday life, security tries to satisfy the growing needs for confidentiality, integrity and non-repudiation. There are many instances of security primitives and each one of them has different requirements in t...