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We present experimental results of the trace argon impurity puffing in the ohmic plasmas of Aditya-U tokamak performed to study the argon transport behaviour. Argon line emissions in visible and Vacuum Ultra Violet (VUV) spectral ranges arising from the plasma edge and core respectively are measured simultaneously. During the experiments, space resolved brightness profile of Ar1+ line emissions at 472.69 nm (3p44s 2P3/2–3p44p 2D3/2), 473.59 nm (3p44s 4P5/2–3p44p 4P3/2), 476.49 nm (3p44s 2P1/2–3p44p 2P3/2), 480.60 nm (3p44s 4P5/2–3p44p 4P5/2) are recorded using a high resolution visible spectrometer. Also, a VUV spectrometer has been used to simultaneously observe Ar13+ line emission at 18.79 nm (2s22p 2P3/2–2s2p22P3/2) and Ar14+ line emission at 22.11 nm (2s21S0–2s2p 1P1). The diffusivity and convective velocity of Ar are obtained by comparing the measured radial emissivity profile of Ar1+ emission and the line intensity ratio of Ar13+ and Ar14+ ions, with those simulated using the impurity transport code, STRAHL. Argon diffusivities ~ 12 m2/s and ~ 0.3 m2/s have been observed in the edge (ρ > 0.85) and core region of the Aditya-U, respectively. The diffusivity values both in the edge and core region are found to be higher than the neo-classical values suggesting that the argon impurity transport is mainly anomalous in the Aditya-U tokamak. Also, an inward pinch of ~ 10 m/s mainly driven by Ware pinch is required to match the measured and simulated data. The measured peaked profile of Ar density suggests impurity accumulation in these discharges. [ABSTRACT FROM AUTHOR]

In this paper, the performance of p-type NiO pocket on Ga2O3/Graphene and Ga2O3/Black phosphorous hetero-MOSFET has been investigated to find out its applicability in the wireless applications. To show the utility of the proposed devices, its analog/RF characteristics have been studied and compared to those of the experimentally demonstrated conventional Ga2O3 MOSFET. The large signal RF performances analysis has also been carried out by considering CW Class-A power measurements at 0.8 GHz using passive source and load tuning. The important figure of merits (FOMs) used in the analysis are intrinsic capacitances CGS and CGD, cutoff frequency fT, output power gain GP, and power-added efficiency. The key idea behind this work is to propose a device which is efficient and shows low leakage current. All the analysis of proposed devices has been carried out using ATLAS TCAD simulator. [ABSTRACT FROM AUTHOR]

This document is a correction notice for an article titled "Role of pinch in Argon impurity transport in ohmic discharges of Aditya-U Tokamak" published in Scientific Reports. The correction addresses an error in Figure 9 of the original PDF version, where the radial profiles were incorrectly displayed. The correction has been made to the PDF version of the article, while the HTML version was correct at the time of publication. The article was authored by K. Shah, J. Ghosh, S. Patel, M. B. Chowdhuri, K. A. Jadeja, G. Shukla, T. Macwan, A. Kumar, S. Dolui, K. Singh, R. L. Tanna, K. M. Patel, R. Dey, R. Manchanda, N. Ramaiya, R. Kumar, S. Aich, N. Yadava, S. Purohit, M. K. Gupta, U. C. Nagora, S. K. Pathak, P. K. Atrey, and K. B. K. Mayya. [Extracted from the article]

The geological studies of the eastern parts of Harda-Barwah basin covering about 3000 sq. km area on 1∶50,000 scale have been carried out using satellite imagery of IRS (FCC), supplemented by Landsat TM/MSS scences and air photos. The present studies with the aid of satellite imagery and remote sensing techniques have brought out the regional stratigraphy and structure of the area and helped in deciphering the interrelationship of various rock groups in the Narmada lineament zone. The area comprises Archaean/Proterozoic gneisses, the Mahakoshal volcano sedimentary suite, the Harda granitoids, the Bijawar Group and the rocks of Vindhyan Supergroup, Deccan Trap and Quaternary sediments. The Archaean/Proterozoic rocks comprising gneisses and schist form basement. The Mahakoshal Group of rocks occur along the ENE-WSW to E-W trending Narmada lineament zone and comprise foliated quartzite, actinolite-chlorite-sericite phyllite and metabasics. The Harda granitoids showing intrusive relationship with earlier rocks, comprise coarse-grained crudely foliated grey to pink granites, fine to medium grained homogeneous granites and porphyritic granites. The Bijawar Group comprises quarzite, chert breccia and dolomite in the order of younging and shows unconformable relationship with the Mahakoshal and the Harda granitoids. The Bijawar rocks show doubly plunging major synformal structure and numerous sympathetic minor folds along ENE-WSW to E-W axis and cross folds along NW-SW axis. The Bijawar rocks are unconformably overlain by a sequence of sandstone and shales belonging to the Rewa Group of the Vindhyan Supergroup. The Deccan Trap lava flows represent the last igneous activity in the area. The Quaternary deposits comprising a cyclic sequence of sand, silt, clay and rock gravels of the Narmada river represent the youngest formation of the area. [ABSTRACT FROM AUTHOR]