This article strings together all the research studies performed by the author in the period of 1996 to 2023 mainly in the area of Metal-Insulator-Semiconductor (MIS) characterization of the Metal-Oxide-Semiconductor (MOS) devices on 4H-SiC semiconductor. The author was engaged in two Research Associate positions in USA as the starting point of the above research studies which continued to the present after returning to India in November, 2001.

Keywords: - MOS Device, Silicon Carbide Semiconductor, Capacitance and Current-Voltage Characterization.

[1]. R.K. Chanana, K. Mcdonald, M. Di Ventra, S.T. Pantelides, L.C. Feldman, G.Y. Chung, C.C. Tin, J.R. Williams, R.A. Weller, "Fowler-Nordheim Hole Tunneling In P-Sic/Sio2 Structures", Appl. Phys. Letts., 2000;77(16):2560-2562.
[2]. R.K. Chanana, "Determination Of Hole Effective Mass In Sio2 And Sic Conduction Band Offset Using Fowler-Nordheim Tunnelling Characteristics Across Metal-Oxide-Semiconductor Structures After Applying Oxide Field Corrections", J. Appl. Phys., Vol. 109, 104508, 2011.
[3]. R.K. Chanana, "A Second Look At The Derivation Of The Average Oxide Fields In A Charged Metal-Oxide-Semiconductor Device", IOSR-JEEE, 2021;16(6):26-29.
[4]. R.K. Chanana, "The Electron And Hole Effective Masses In Thermal Silicon Dioxide Determined From The Perspective Of A Semiconductor", Trans. Engg. And Computing Sciences, 2023;11(4): 172-174.
[5]. R.K. Chanana, "On The Application Of Noether's Theorem To The Potential Energy Lagrangian Due To The Oxide Voltage In A MOS Device", IOSR-J. Appl. Phys., 2020;12(3):13-16.

This paper investigates the potential of hydrogen as a clean energy carrier, its production methods from renewable sources, and its applications in various sectors like transport and industry. As the world transitions to sustainable energy sources, hydrogen emerges as a promising alternative to fossil fuels.

Index terms: Sustainability; Energy Transition; Energy Storage; Hydrogen; Hydrogen in Energy Transition

[1] Chugh, T, Seth, R, and Tyagi, K. "Beyond the Prompt: Unmasking Prompt Injections in Large Language Models." Accessed [Date]. https://dzone.com/articles/beyond-the-prompt-unmasking-prompt-injections-in-l-1.
[2] Tyagi, K, Rane, C, and Manry, M. "Automated Sizing and Training of Efficient Deep Autoencoders using Second Order Algorithms." Accessed [Date]. https://arxiv.org/pdf/2308.06221.pdf.
[3] Rajini K R Karduri, "Supercharging energy transitions through people, pockets and the planet", TheAcademic.com, July 2023
[4] B Chittoori, AJ Puppala, R Reddy, D Marshall, "Sustainable reutilization of excavated trench material" ; GeoCongress 2012: State of the Art and Practice in Geotechnical Engineering Mishra, AK, Tyagi, K, and Mishra, D. 2023. "Utilizing Super-Resolution for Enhanced Automotive Radar Object Detection." In IEEE International Conference on Image Processing (ICIP), 3563-3567.
[5] Rane, C, Tyagi, K, and Manry, M. "Optimizing Performance of Feedforward and Convolutional Neural Networks Through Dynamic Activation Functions." Accessed [Date]. https://arxiv.org/pdf/2308.05724v1.pdf.

In this paper, the effect of rotation on longitudinal vibrations in a micro polar elastic solid with a cylindrical hole have been studied. The frequency equation for longitudinal vibrations is derived. Micro rotations, radial and axial displacements connecting angular rotations are derived interms of Bessel polynomials for symmetric and skew-symmetric modes. For investigating the rotation effect, the numerical example is considered and using MATLAB programme the displacements are plotted against the wave number of the solid.

Keywords: - Cylindrical hole, Longitudinal vibrations, Micro polar elastic solid, Rotation

[1]. Chree, C. (1889). The equation of an isotropic elastic in polar and cylindrical coordinates their solutions and applications, Trans.Cambridge, Phil.sec. 14, 20-369.
[2]. Pochammer, L. J. (1876). Reineangew. Maths.81, 324-333.
[3]. Bancroft, D. (1941). The velocity of longitudinal waves in cylindrical bars, Phys.Rev. 59, 558-593.
[4]. Lamb, H. (1898). On the velocity of sound in a tube as effected by the elasticity of the walls, Mem. Proc Machester Lrt and phil. soc: 42(9).
[5]. Mahmud, S. R. (2011). Effect of rotation on Generalized Magneto-Thermo elastic Rayleigh waves in gra- nular medium under influence of gravity field and initial stress. Applied Mathematical Sciences, 5(41), 2013-2032.

In the process of urbanization, cities are getting overgrown globally. There are various policies and techniques put forward to repair the issues of urbanization. Urban regeneration is an approach to city planning to repair the social and economic problems of an urban area, improving the physical and environmental aspects of the city, as well as the buildings. It aims to transform obsolete or blighted areas into economically productive areas of a community. Historically, the commercial centers has played a major role in the emergence of cities. Many a times traditional commercial spaces lose their identity in various layers due to various projects and schemes. There is loss of character and heritage of a place at the same time challenging the livability conditions of the population as well. These urban regeneration policies occur at an unregulated manner.........

Keywords: - historic commercial centers, urban regeneration, market, urban

[1]. Alok Dinesh, A. (2015-2017). Revitalization of Terrain Vague in the city core: The case of Chalai, Trivandrum. PG Thesis.
[2]. J, N. (2018). INTEGRATION OF HERITAGE IN URBAN MARKET PRECINCT: A STUDY ON CHALAI, THIRUVANANTHAPURAM. B.Arch. Dissertation.
[3]. Rohit Varman, H. S. (2016). History of Marketing in India. The Routledge Companion to Marketing History.
[4]. Shaji, L. S. (2015). Contextual Form Based Coding as a Tool in Urban Design Process-chalai, Thiruvananthapuram as a Case, ICETEST, 52.
[5]. Shandilya, S. (2018). Memoirs of a Traditional Market: The Survival and Resistance of Katras . International Research Journal of management, sociology & humanities.

The proposal aims to develop a prototype system to segment the bladder organ. The system will use image processing, computer vision, segmentation and pattern recognition techniques. The prototype will load images of axial sections where the urinary bladder (hollow and distensible muscular organ) is observed and will obtain a segmentation of the bladder organ for the subsequent classification of possible tumors in the organ.

Keywords: - Urinary bladder, Image processing and Segmentation

[1]. Sistema urinario. "Vejiga urinaria y Uretra masculina". Kenhub. (s.f.), address: https://www.kenhub.com/es/study/vejiga-urinaria-y-uretra-masculinas
[2]. Instituto Nacional de Estadística y Geografía. "Defunciones registradas de hombres por tumor maligno de la próstata por entidad federativa de residencia habitual de la persona fallecida y grupo quinquenal de edad, serie anual de 2010 a 2021". (2021), address: https://www.inegi.org.mx/app/tabulados/interactivos/?pxq=Mortalidad_ Mortalidad_06_b9b3f760-db74-4198-a8a1-bdfadf07966d
[3]. Consumer Eroski. (2023), dirección: https://sexoysalud.consumer.es/salud-y-sexualidad/en-el-hombre-con-problemas-de-pr%C3%B3stata
[4]. UNAM. (s.f.). Capítulo 1. Antecedentes de métodos de Segmentación. Recuperado el 12 de junio de 2023, de http://www.ptolomeo.unam.mx:8080/xmlui/bitstream/handle/132.248.52.100/171/A4.pdf
[5]. V. Cantoni y E. Mattia, "Hough Transform", en Encyclopedia of Systems Biology, W. Dubitzky, O. Wolkenhauer, K.-H. Cho y H. Yokota, eds. New York, NY: Springer New York, 2013, págs. 917-918, ISBN: 978-1-4419-9863-7. DOI: 10.1007/978-1-4419-9863-7_1310. Address: https://doi.org/10.1007/978-1-4419-9863-7_1310.

Conventional application of polyanionic cellulose (Pac L and Pac R) as fluid loss agents in water-based mud has
been proven to improve oilfield drilling over the years, however, these fluid loss agents are imported and
therefore increase the capital cost of oil and gas drilling operations in Nigeria. Meanwhile, research has shown
that the raw materials of most of these imported oilfield chemicals can be obtained locally. Therefore, it is
imperative to identify local additives and determine their suitability as substitutes. The study evaluated the fluid
loss control performance of selected local starch samples (TME 419, 1632, 0581, TME 416, PS, and CEMA)
and compared their results with imported conventional polymer samples X, Pac L, Pac R. Fluid loss results from
six local cassava starch samples.........

Keywords: - Fluid loss, filtration control, PAC R, PAC L, cassava starch, water-based mud, drilling fluids, local
additives.

[1]. Ademiluyi T., Joel O. F. and Amuda A. K. (2011): "Investigation of Local Polymer (Cassava Starches) as
a Substitute for Imported Sample in Viscosity and Fluid Loss Control of Water Based Drilling Mud". ARPN Journal of Engineering and Applied Sciences Vol. 6, No. ISSN 1819-6608.
[2]. Andrew O., Redemption E., Eghe O., (2022): Edict of cassava starch and sodium carbonate on the properties of local drilling mud: beneficiation to improve the rheological and flow properties of locally formulated mud". Advances in chemical engineering and science. vol 12. No. 1. Doi:10.4236/aces.2022.121002
[3]. API 13A (1993). Specification for drilling fluid materials, American Petroleum Institute, Washington D.C., 15th ed., May
[4]. API (1997). Laboratory Testing of Drilling Fluids, Seventh Edition and ISO 10416: 2002 API 13I Supplement 2 - 01-June.
[5]. API (2003). Recommended Practice for Field Testing of Water-based Drilling Fluids 13B-1, Third Edition, December, ANSI/API 13B-1/ISO 10414-1