Wireless distributed microsensor systems will enable the reliable monitoring of a variety of environments for both civil and military applications. In this paper, we look at communication protocols, which can have significant impact on the overall energy dissipation of these networks. Based on our findings that the conventional protocols of direct transmission, minimum-transmission-energy, mult...

This method was developed to improve sensitivity and eliminate time consuming, evaporative pre-concentration in AOAC Method 973.82 and American Society for Testing and Materials method C738 for testing foodware. The method was developed using leach solutions obtained by leaching 9 differently decorated ceramic vessels with 4% acetic acid for 24 h at room temperature. Lead and cadmium concentrat...

ireless sensor networks are composed of large number of tiny sensor nodes that are used to observe, monitor and collect data about a certain phenomenon of interest. Wireless sensor networks are often deployed randomly due to the harsh environments and their hard to reach locations. The sensor nodes used in wireless sensor networks are energy constrained. Energy efficiency is thus the main conce...

A Wireless Sensor Network (WSN) is built from a network of devices referred to as nodes, which can sense the environment and are used to communicate the required information collected from monitored fields. The communication and collection of information is done with the help of wireless links, where each node is linked to one or a number of sensors. The nodes in turn are deployed in large numb...

LEACH in wireless sensor networks (WSNs) achieves good performance with reserving energy consumption and decreasing system delay. LEACH protocol does not consider a security issue for ensuring the protection of the network. So the security in LEACH is a complicated task. were we improved the LEACH protocol called a novel algorithm to select cluster heads with highest and balanced energy in wire...

When some nodes cooperatively track moving targets in a wireless sensor network, things including network working node selection and energy consumption are influenced. Thus, this paper proposes an improved algorithm LEACH-MTC (LEACH with Moving Target Constraint) based on low adaptive clustering hierarchy protocol (LEACH). First, the two-step linearization of nonlinear dynamic model, state targ...