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Van der Waals (vdWs) heterostructures assembled by stacking 2D crystal layers have proven to be a new material platform for high-performance optoelectronic applications such as thin film transistors, photodetectors, and emitters. Here, we demonstrate a novel device with strain tuning capabilities using MoS2/Sb2Te3 vdWs p-n heterojunction devices designed for photodetection in the visible to near-infrared spectrum. The heterojunction devices exhibit remarkable characteristics, such as a low dark current in the range of a few picoamperes and a high photoresponsivity of 0.12 A/W. Furthermore, the proposed devices exhibit exceptional tunability when subjected to a compressive strain of up to 0.3%. By introducing strain at the interface of the heterojunction, the materials bandgap is affected resulting in a significant change in the band structure of the heterojunction. This leads to a change in the detectors optical absorption characteristics improving the responsivity of the device. The proposed strain-induced engineering of the electronic and optical properties of the stacked 2D crystal materials allows tuning of the optoelectronic performance of vdWs devices for high-performance and low-power consumption applications for applications like wearable sensors and flexible electro-optic circuits., Comment: 10 pages, 3 figures

In this paper, an optimized efficient VLSI architecture of a pipeline Fast Fourier transform (FFT) processor capable of producing the reverse output order sequence is presented. Paper presents Radix-2 multipath delay architecture for FFT calculation. The implementation of FFT in hardware is very critical because for calculation of FFT number of butterfly operations i.e. number of multipliers requires due to which hardware gets increased means indirectly cost of hardware is automatically gets increased. Also multiplier operations are slow that's why it limits the speed of operation of architecture. The optimized VLSI implementation of FFT algorithm is presented in this paper. Here architecture is pipelined to optimize it and to increase the speed of operation. Also to increase the speed of operation 2 levels parallel processing is used.

In this paper,a new design of wireless sensor network (WSN)node is discussed which is based on components with ultra low power.We ha e de eloped a Low cost and low power WSN Node using MSP430 and nRF24L01.The architectural circuit details are presented.This architecture fulfils the requirements like low cost,low power,compact size and self organization.Various tests are carried out to test the performance of the nRF24L01 module.The packet loss,free Space loss (FSL)and battery lifetime calculations are described.These test results will help the researchers to build new applications using abo e node and to work efficiently with nRF24L01., Comment: 5 Pages IJANA

Of the total number of illiterate people in the world, half are in India. National programs for adult education in India are the Community Development Program, Farmers Functional Literacy Project, and National Adult Education Program, participants in which include voluntary agencies, state resource centers, and district resource units. When the State of Maharashtra came into existence in 1960, its three regions operated three different patterns of social education. The first task to which the new state addressed itself was unification of these varying patterns. The state decided to build upon the Gram Shikshan Mohim movement of the Satara district, which took the literacy movement to the villagers and asked them to solve their problems. The organization of the Mohim is simple. The village identifies illiterate people and educated social workers and then forms training groups and classes. Literacy classes last for 3-4 months and have an emphasis on general knowledge, including health. Classes participating in the Mohim are registered with the Education Department; social workers visit and guide activities. A celebration is held when 100 percent literacy is attained. A new approach to the Mohim is the addition of post-literacy classes and village development. Incentives and a literacy campaign are recommended to achieve the goal of 100 percent literacy. (Appendixes include two articles on the Mohim and a 26-item bibliography.) (YLB)