Measurement technology for various key parameters in harsh environments (e.g., high-temperature and biomedical applications) continues to be limited. Wireless passive LC resonant sensors offer long service life and can be suitable for harsh environments because they can transmit signals without battery power or wired connections. Consequently, these devices have become the focus of many current...

wireless sensors having limited capabilities, because of these factors sensors possess huge attacks like sinkhole, worm hole, Sybil, flooding, etc. a lot of research work already done, but no one implemented secure routing protocol to mitigate all these attacks. Some proposals came on security of wireless sensor network which controlled only one or two attacks. We proposed Secure Routing in Clu...

The continuous, real-time monitoring of clinically important analytes (e.g., PO2, PCO2, pH, K+, Na+, glucose, and lactate) is of great importance to human health care. Despite considerable efforts spanning several decades, the use of in vivo sensors clinically remains limited due to inadequate biocompatibility. The discovery of nitric oxide (NO) as an effective inhibitor of platelet and bacteri...

A network early warning system consists of several distributed sensors to detect malicious network activity. The effectiveness of such early warning systems critically depends on the sensor deployment strategy used. We therefore analysed attack patterns of malicious software collected at sensors worldwide to determine an optimal deployment strategy. Our results show that due to the small number...

Studying the strain of materials on a small scale is very important for applications in strain sensors. Previous studies show that graphene is a promising candidate for strain sensors because of its extraordinary physical and electrical properties. However, these studies were limited to strain applied in a single direction. In this study, flexible strain sensors based on graphene were fabricate...

The paper describes several approaches and experimental results for learning a map of an indoor environment, using a combination of odometry, sonar range sensors, and vision. The aim of the presented research work is consistent real-time map-learning in indoor-environments with low-cost sensors and limited computational resources and without installations in the environment itself. Therefore, w...

Ad-hoc sensor networks are networks of sensing devices (and other communicating devices) whose goal is to have the sensors “sense” some aspect of their local environment and communicate those values over the network they have created. These type of networks create a number of challenging problems for the following reasons. The sensors that are part of an ad-hoc sensor network are most often low...

wireless sensor networks(wsn) have unique properties that distinguished them from other wireless networks and have special challenges. not-chargeable, not-changeable and limited power supplies of sensor nodes is the most important challenge of this networks, and if the power supply of node expired, a part of data maybe lost. because of the importance of covers in wireless sensors, in this work ...

This restricted digital representation is the result of constrained internal memory or communication bandwidth between different components or machines, which may be due to limited power or limited capacity compared to the size or amount of data. For example, emerging sensor network technologies in medicine and “smart cities” use many low-cost sensors to collect large amounts of data and transm...