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  1. No Access

    Article

    High-Temperature Behavior of Superalloy XH 62 in Compressive and Tensile Modes

    Superalloy XH 62(Ni-Cr-Mo-Fe-Al) is studied for its high-temperature behavior under compressive and tensile mode of deformation at elevated temperatures. Gleeble thermo-mechanical simulator has been employed t...

    Rakesh Ranjan, Rohit Kumar Gupta in Journal of Materials Engineering and Perfo… (2024)

  2. No Access

    Article

    First record of the rare deep-sea shark, Scymnodon ichiharai Yano and Tanaka, 1984 (Squaliformes: Somniosidae) from Andaman Waters, India

    The Japanese velvet dogfish Scymnodon ichiharai Yano and Tanaka 1984 (Somniosidae) is a rare deep-sea shark hitherto known only from the northwest Pacific Ocean. This species is observed for the first time from t...

    Ravi Ranjan Kumar, S. Venu, K. K. Bineesh in Thalassas: An International Journal of Mar… (2024)

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    Article

    Hot Workability and Microstructure Control in Monel K 500 in as Cast Condition: An Approach Using Pressing Maps

    Monel K500 is a high strength, precipitation hardenable, nickel-copper alloy with additions of Al and Ti, having excellent corrosion resistance and ignition resistance to high pressure gaseous oxygen. However,...

    Soumyajyoti Dey, Ravi Ranjan Kumar, Varsha Florist in Metals and Materials International (2024)

  4. No Access

    Article

    Denoising and segmentation in medical image analysis: A comprehensive review on machine learning and deep learning approaches

    Medical imaging plays an essential role in modern healthcare, hel** accurate diagnoses and effective treatment strategies. Still, the quality and interpretability of medical images are regularly hindered by ...

    Ravi Ranjan Kumar, Rahul Priyadarshi in Multimedia Tools and Applications (2024)

  5. Article

    Open Access

    Physio-biochemical responses and crop performance analysis in chickpea upon botanical priming

    Chickpea is a highly nutritious protein-rich source and one of the major crops to alleviate global malnutrition, but poor seed quality affects its productivity. Seed quality is essential for better crop establ...

    Kamini Kaushal, Kumari Rajani, Ravi Ranjan Kumar, Tushar Ranjan in Scientific Reports (2024)

  6. No Access

    Article

    Techniques employed in distributed cognitive radio networks: a survey on routing intelligence

    In order to meet the growing needs for wireless communication in dynamic and diverse circumstances, Cognitive Radio Networks (CRNs) have evolved as a transformational model. The important area of intelligent r...

    Rahul Priyadarshi, Ravi Ranjan Kumar, Zhang Ying in Multimedia Tools and Applications (2024)

  7. No Access

    Article

    Hot Workability and Microstructure Control of Ti6Al4V Alloy

    Titanium alloy Ti6Al4V has been recognized for its high strength-to-weight ratio. Extensive deformation study has been conducted; however, defects like strain-induced porosities, non-uniform microstructure, et...

    M. S. Dhanya, S. Anoop, Sushant K. Manwatkar in Journal of Materials Engineering and Perfo… (2024)

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    Article

    Signaling and Defence Mechanism of Jasmonic and Salicylic Acid Response in Pulse Crops: Role of WRKY Transcription Factors in Stress Response

    Jasmonic Acid (JA), Salicylic Acid (SA) and its derivatives are important phytohormones that play fundamental roles in the plant defence mechanisms against various biotic and abiotic stresses. These hormones a...

    Rafat Sultana, Zafar Imam, Ravi Ranjan Kumar in Journal of Plant Growth Regulation (2024)

  9. No Access

    Article

    High-Temperature Deformation Behavior of Superalloy XH43

    With an aim to study the hot workability and establish the safe working zone for Ni-based superalloy XH43, cylindrical specimens were subjected to hot isothermal compression test at different temperatures (117...

    Rakesh Ranjan, Rohit Kumar Gupta in Journal of Materials Engineering and Perfo… (2024)

  10. No Access

    Article

    Effect of Grain Size on the Heat-Affected Zone (HAZ) Cracking Susceptibility in Ni Base XH67 Superalloy

    XH67 is a high-nickel superalloy used in high-pressure, oxygen-rich environment of rocket engine components, in view of its excellent ignition resistance over conventional superalloys. This alloy has complex c...

    Rishabh Shrivastava, Ravi Ranjan Kumar in Metallurgical and Materials Transactions A (2024)

  11. No Access

    Article

    Micronutrient and redox homeostasis contribute to Moringa oleifera-regulated drought tolerance in wheat

    Global food security is being severely affected by the rapid increase in population and drastic climate change. Drought stress is the most important limiting factor for the sustainable production of several im...

    Sahana Basu, Amlan A. Prabhakar, Surbhi Kumari, Aabha in Plant Growth Regulation (2023)

  12. No Access

    Article

    A Hybrid Space–Time Modelling Approach for Forecasting Monthly Temperature

    Spatio-temporal forecasting has various applications in climate, transportation, geo-statistics, sociology, economics and in many other fields of study. The modelling of temperature and its forecasting is a ch...

    Ravi Ranjan Kumar, Kader Ali Sarkar in Environmental Modeling & Assessment (2023)

  13. No Access

    Chapter

    Design and Operation of New Microbial Product Bioprocessing System

    Microbial products are recognized as the most diverse commercially important chemical structure. Bioprocess offers sustainable techniques for the production of existing and newly developed microbial products. ...

    Ravi Ranjan Kumar, Chitra Bhattacharya in Microbial products for future industrialization (2023)

  14. No Access

    Article

    Influence of Filler Metal on the Microstructure and Mechanical Properties of 316Ti–15-5 PH Stainless Steel Weld Joints

    Dissimilar metal weld joints of austenitic stainless steel (SS) 316Ti and 15-5PH stainless steel were produced through gas tungsten arc welding (GTAW) using two different grades of filler wire, viz., ER316L (a...

    Ravi Ranjan Kumar, Randhir Kumar Singh in Journal of Materials Engineering and Perfo… (2022)

  15. No Access

    Article

    Phase equilibria modelling and textural relationship of metapelitic granulites and Grt-Bt-bearing gneisses from Mauranipur area, Bundelkhand Craton, central India

    The Bundelkhand Craton (BuC) is a major Archean cratonic nucleus of the Central Indian Shield, consisting of supracrustal units of greenschist to granulite facies assemblages. The Mauranipur area is located in...

    Pratigya Pathak, Shyam Bihari Dwivedi, Ravi Ranjan Kumar in Arabian Journal of Geosciences (2022)

  16. No Access

    Article

    Metallurgical Characterization and Analysis of Locally Melted C-103(Nb-10Hf-1Ti) Sheet During Vacuum Heat Treatment

    During vacuum annealing of C-103 (Nb-10Hf-1Ti) sheets, local melting was noticed at the locations they were in contact with commercially pure titanium (CP-Ti) base sheet. On metallurgical analysis, it was note...

    Ravi Ranjan Kumar, Debasis Tripathy in Journal of Failure Analysis and Prevention (2022)

  17. No Access

    Article

    Report of zonetail butterfly ray, Gymnura zonura (Bleeker, 1852) and mangrove stingray Urogymnus granulatus (Macleay 1883) (Chondrichthyes: Myliobatiformes) from Andaman waters, India

    This paper reports the occurrence of two stingray species from Andaman waters, India; the zonetail butterfly ray Gymnura zonura (Bleeker, 1852) (695 mm DW) which represents a new distributional range, and the man...

    Ravi Ranjan Kumar, S. Venu, K. V. Akhilesh in Thalassas: An International Journal of Mar… (2022)

  18. No Access

    Article

    Knockdown of capsid protein encoding novel ATPase domain inhibits genome packaging in potato leafroll virus

    Potato leafroll virus (PLRV) uses powerful molecular machines to package its genome into a viral capsid employing ATP as fuel. Although, recent bioinformatics and structural studies have revealed detailed mech...

    Jitesh Kumar, Ravi Ranjan Kumar, Dilip Kumar Das, Auroshikha Mohanty in 3 Biotech (2022)

  19. No Access

    Chapter and Conference Paper

    Harmonic Compensation Strategy for Increasing the Operating Range of Solar-Fed Single-Phase Cascaded H-Bridge Multilevel Inverter

    In this paper, we have presented a single-phase cascaded H-Bridge (CHB) grid-connected solar inverter, Due to the unmatched solar radiations and the atmospheric temperature variation of solar panel in a single...

    Ravi Ranjan Kumar, Jayanti Choudhary in Proceedings of Sixth International Congres… (2022)

  20. No Access

    Article

    Reassessing the mechanism of genome packaging in plant viruses with lessons from ATPase fold

    Plant viruses cause various disease in crops and are responsible for huge economic losses. Understanding their mode of infection and spread is crucial for develo** control strategies. Genome packaging is an ...

    Tushar Ranjan, Awadhesh Kumar Pal, Bishun Deo Prasad in Australasian Plant Pathology (2021)

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