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Vol 12, Issue 9 (September 2026) Library And Information Science

Digital Resources, Digital Services, And Information Literacy In Academic Libraries: Emerging Trends, Opportunities And Challenges

Academic Librarianship Is Constantly Changing Because Of The Swift Flip Of Digital Technologies, Which Are Affecting The Development And Use Of Information Resources And Services. The Rapid Development Of Digital Resources Such As E-books, Electronic... Academic Librarianship Is Constantly Changing Because Of The Swift Flip Of Digital Technologies, Which Are Affecting The Development And Use Of Information Resources And Services. The Rapid Development Of Digital Resources Such As E-books, Electronic Journals, Online Databases And Institutional Repositories Have Increased Access To Scholarly Information And Improved The Opportunities For Teaching, Learning And Research. Meanwhile, Networked Services Like Virtual Reference, Distant Access Systems, Research Assistance And Online Information Literacy Programmes Have Enhanced The Ability Of Academic Libraries To Adequately Serve The Changing Needs Of Users Of A Digital Environment. In This Sense, Information Literacy Becomes One Of The Most Important Skills Which People Should Learn To Find, Use And Share Information In An Effective And Ethical Way. The Purpose Of This Article Is To Discuss The Relationship Among Information Literacy, Digital Resources And Digital Services In Academic Libraries. The Study Discusses The Role Of Digital Resources To Support Academic Activities, Research Productivity And The Importance Of Information Literacy For Effective Approach To Use Information. The Review Also Covers New Developments Like Artificial Intelligence, Digital Scholarship, And Customized Library Services And Problems Like Information Overload, The Digital Divide, Cyber Security, And Limited Resources. From The Results It Is Seen That Digital Resources, Digital Services And Digital Information Literacy Are Well Connected And Complement Each Other To Deliver Better Learning And Provide Research Productivity. The Authors Come To A Conclusion That Investments In Technological Innovations And Service And Information Literacy Programs Based On Users Are Needed Continuously To Ensure Optimal Effectiveness Of Academic Libraries In A Context Of The Knowledge Society Read more Read less

Authors: Dip Ranjan | Dr. Ashutosh Agrahari

Vol 12, Issue 9 (September 2026) Mechanical Engineering

Energy And Exergy Performance Evaluation Of A Vapour Compression Refrigeration System Using Conventional (R134a) And TiO₂ Nano-Refrigerant

The Increasing Demand For Energy-efficient And Environmentally Sustainable Refrigeration Systems Has Led To The Exploration Of Advanced Working Fluids. This Study Presents The Energy And Exergy Analysis Of A Vapour Compression Refrigeration System (V... The Increasing Demand For Energy-efficient And Environmentally Sustainable Refrigeration Systems Has Led To The Exploration Of Advanced Working Fluids. This Study Presents The Energy And Exergy Analysis Of A Vapour Compression Refrigeration System (VCRS) Operating With A Conventional Refrigerant (R134a) And A Nano-refrigerant Formed By Dispersing 0.1% Titanium Dioxide (TiO₂) Nanoparticles Into The Compressor Lubricant. Energy Analysis, Based On The First Law Of Thermodynamics, Was Used To Determine The Refrigeration Effect, Compressor Work And Coefficient Of Performance (COP), While Exergy Analysis, Based On The Second Law, Was Used To Quantify Irreversibilities And Exergy Destruction In The Compressor, Condenser, Expansion Valve And Evaporator. Experiments Were Carried Out On A Vapour-compression Test Rig At Constant Water Temperatures Of 16°C, 18°C And 20°C. The Results Show That The Addition Of TiO₂ Nanoparticles Increases The Refrigeration Effect By 1.24–2.86% And Reduces Compressor Work By 5.78–8.71% Relative To Conventional R134a, Yielding An Improvement In Theoretical COP Of 9.14–10.45%, With The Maximum Improvement Of 10.45% Obtained At 18°C. Exergy Destruction Was Reduced In Every Major Component, With The Largest Reductions Observed In The Compressor (6.60–12.24%) And The Expansion Valve (7.14–15.79%), And Smaller Reductions In The Condenser (4.17–5.47%) And Evaporator (6.40–7.41%). The Study Concludes That A 0.1% TiO₂ Nano-refrigerant Is A Favourable And Thermodynamically Superior Alternative To Conventional R134a For Vapour Compression Refrigeration Systems. Read more Read less

Authors: Venkata Kishore Babu Polisetty | Dr.s.somasundaram

Vol 12, Issue 9 (September 2026) Electrical And Electronics Engineering

Simulation-based Comparative Analysis Of Positive Output Luo Converter Topologies For High-Gain DC–DC Applications

High-gain DC–DC Converters Play A Significant Role In Renewable Energy Systems, Electric Vehicles, Battery Charging Systems, Fuel Cells, And Other Modern Power Electronic Applications Where Efficient Voltage Conversion Is Essential. Conventional Boos... High-gain DC–DC Converters Play A Significant Role In Renewable Energy Systems, Electric Vehicles, Battery Charging Systems, Fuel Cells, And Other Modern Power Electronic Applications Where Efficient Voltage Conversion Is Essential. Conventional Boost Converters Often Experience Limitations Such As High Duty Cycle Operation, Increased Switching Losses, Poor Voltage Gain, And Reduced Efficiency Under High Conversion Ratios. To Overcome These Challenges, The Luo Converter Family, Based On The Voltage Lift (VL) Technique, Has Emerged As An Effective Solution For Achieving Higher Voltage Gain With Improved Performance. Over The Years, Several Positive Output Luo Converter Topologies, Including The Elementary, Self-Lift, Re-Lift, Super-Lift, And Multiple-Lift Converters, Have Been Developed To Enhance Voltage Conversion Capability While Maintaining Continuous Input Current And Reduced Output Ripple. This Paper Presents A Comprehensive Comparative Analysis Of Positive Output Luo Converter Topologies By Reviewing Their Operating Principles, Voltage Gain Characteristics, Structural Complexity, Component Requirements, Reported Performance, And Application Suitability. Furthermore, Recent Developments In Converter Modifications, Advanced Control Strategies, And Renewable Energy Applications Are Discussed. A Comparative Assessment Is Provided To Highlight The Advantages, Limitations, And Appropriate Application Domains Of Each Topology. Finally, Current Research Challenges And Future Research Opportunities Are Identified To Support The Development Of Next-generation High-gain DC–DC Converters For Renewable Energy And Electric Vehicle Applications. Read more Read less

Authors: INTI KRISHNATULASI | Dr. G.A. RATHY

Vol 12, Issue 9 (September 2026) Biochemistry

Green Synthesis And Medicinal Applications Of Bioactive Heterocyclic Compounds: A Study

Heterocyclic Compounds Are An Essential Class Of Molecules In Medicinal Chemistry Because Their Structural Diversity And Heteroatom Content Enable Specific Interactions With A Wide Range Of Biological Targets [1]. However, Classical Synthetic Routes... Heterocyclic Compounds Are An Essential Class Of Molecules In Medicinal Chemistry Because Their Structural Diversity And Heteroatom Content Enable Specific Interactions With A Wide Range Of Biological Targets [1]. However, Classical Synthetic Routes Frequently Involve Hazardous Reagents, Toxic Organic Solvents, High Energy Consumption, Multistep Operations, And Excessive Waste Generation. Green Chemistry Offers A Vital Framework To Refine Synthetic Efficiency While Minimising The Environmental Footprint Of Heterocycle Production. This Review Critically Evaluates Sustainable Methodologies For Constructing Bioactive Heterocyclic Cores, Focusing On Microwave-assisted Synthesis, Ultrasound-driven Routes, And Multicomponent Reactions (MCRs), Solvent-free/aqueous Media, And Eco-friendly Catalytic Systems. Furthermore, The Therapeutic Relevance Of These Frameworks Across Oncology, Infectious Diseases, Neurodegenerative Conditions, And Metabolic Disorders Is Detailed [1]. Despite Notable Progress, Translating Green-synthesized Leads Into Clinical Candidates Remains Bottlenecked By Aqueous Solubility Issues, Poor Metabolic Stability, Incomplete Pharmacokinetic Profiles, And Limited In Vivo Validation [1]. Future Research Must Harmoniously Integrate Green Synthetic Protocols With Systematic In Vivo Testing, Advanced Drug-delivery Platforms, And Computational/AI-driven Modelling To Accelerate The Discovery Of Sustainable Therapeutics Read more Read less

Authors: Vinod Prakash Shinde | Dr Kanchan Sonune | Mr Roshan Kumar Sah

Vol 12, Issue 9 (September 2026) Power Electronics And Drives

Adaptive Tabu Search-Optimized Speed Control Of A BLDC Motor Drive For Electric Vehicle Applications

High-efficiency Propulsion Drives Are Essential For Advancing Modern Electric Vehicle (EV) Powertrains. This Paper Presents A Speed-control Architecture For Brushless DC (BLDC) Motors Using An Adaptive Tabu Search (ATS) Algorithm To Optimize Proporti... High-efficiency Propulsion Drives Are Essential For Advancing Modern Electric Vehicle (EV) Powertrains. This Paper Presents A Speed-control Architecture For Brushless DC (BLDC) Motors Using An Adaptive Tabu Search (ATS) Algorithm To Optimize Proportional-integral-derivative (PID) Controller Parameters. Standard Empirical PID Tuning Methods Often Fail To Deliver Adequate Robustness Against The Nonlinear Dynamics, Abrupt Road-load Changes, And Fluctuating Operating Conditions Inherent To EV Drivetrains. To Address This, The ATS Algorithm Systematically Searches The Multi-dimensional Parameter Space (Kp, Ki, Kd) While Explicitly Enforcing Physical Control Voltage Limits To Prevent Actuator Saturation And Digital Over-modulation. MATLAB/Simulink Simulations Under Severe Dynamic Load Profiles Demonstrate That The Proposed ATS-optimized Controller Effectively Eliminates Steady-state Tracking Error, Accelerates Settling Time, And Mitigates Startup Overshoot Compared To Conventional Tuning Techniques. Read more Read less

Authors: P JAYANTHI | Dr. R. Suja Mani Malar