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Pentacene is widely used in organic transistors as an organic semiconductor material. The conductivity of pentacene is enhanced in recent days, which helps in improving the device characteristics of organic transistors providing additional benefit of low-cost and flexible devices. Modeling and simulation of such devices are constructive in analyzing device characteristics. Here, in this paper modeling and simulation of four different configurations of organic transistor two on the basis of the bottom gate and two on the basis of the top gateis done in order to analyze the transfer and output characteristics. Off current of 10 -15 A, and low subthreshold swing of 0.347 V/decade was observed.

Optimal location and sizing of different types of renewable energy generation system at the distribution networks for the purpose of active power loss minimization is revealing much attention of electric power utilities in the recent days. In the present work, optimal location and sizing of different types of renewable energy generators (REGs) have been proposed for IEEE 33-bus test system. The vastness of the REGs is determined by minimizing the power loss in the distribution system. Power distribution losses have been minimized with the determination of optimal location as well as optimum size of distributed generator. In this work, various case studies such as active power loss, reactive power loss, combined real and reactive power, optimum power factor, and multi REGs placements have been considered for optimal location of REGs. A simple but efficient Repeated Load Flow (RLF) technique has been used to ascertain optimal location of REGs. The simulation results obtained from this RLF technique have also been compared with an outcome of other approach results. The proposed approach has been validated on IEEE 33-bus and 69 radial distribution test systems.

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PM10 and PM2.5 are being monitored for asssessment of human health exposure. Laser aerosol spectrometry (25-300 nm), Aerasense Nano Monitors (10-300 nm), Aerasense Nano Tracer (10-300 nm) could be used for qualitative and quantitative detection. There is a need to develop instrumentation and methods for a wide range of engineered nanomaterials that are smaller in size and in very low concentrations in aerial, terrestrial and aquatic environment.