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<p><span>Hybrid medium access control (MAC) scheme is one of the prominent mechanisms to offer energy efficiency in wireless sensor network where the potential features for both contention-based and schedule-based approaches are mechanized. However, the review of existing hybrid MAC scheme shows many loopholes where mainly it is observed that there is too much inclusion of time-slotting or else there is an inclusion of sophisticated mechanism not meant for offering flexibility to sensor node towards extending its services for upcoming applications of it. Therefore, this manuscript introduces a novel hybrid MAC scheme which is meant for offering cost effective and simplified scheduling operation in order to balance the performance of energy efficiency along with data aggregation performance. The simulated outcome of the study shows that proposed system offers better energy consumption, better throughput, reduced memory consumption, and faster processing in contrast to existing hybrid MAC protocols.</span></p>

Electricity can be produced in vehicles fr gases. In a gasoline powered engine about 70 pe fuel's energy is dissipated as waste heat through Thermoelectric generators (TEGs) can directly co energy to electrical energy and can be employed in industry to recover this waste heat energy. We ar efficiency HZ-20 module. This TEG has 71 thermoco electrically in series and thermally in parallel. The are made by using Bismuth Telluride based semicon gives high efficiency at most heat temperatures a strength in tough applications.

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