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277 articles for “STEP”
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Study of Isotropic Property
Abstract: This article is constitutive from as forged as well compounded form. Isotropy is uniformity in various orientations. Isotropy is composed of Greek isos meant by equal and tropos meant by way. Precise definable consequence is subjective to depend on material property i.e., same when tested in different directions. A common example of isotropy is inclusive as of glass, plastics, and metals. Alter subject area is studied as inequality, given by …
Published in International Journal of Energetic Materials · Vol. 7, Issue 2, 2021 · pp. 1–7 Read article
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A Note on Fixed-Point Theory
Abstract: In this paper, we narrate in brief the origin and step-by-step development of the fixed-point theory which finds its primary applications in functional analysis. It is a sub-branch of the functional analytic theory in which geometric conditions on the mappings and/or underlying spaces play a crucial role. It is also a major branch of nonlinear functional analysis with close ties to Banach space geometry. In this paper, our main focus …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 5, Issue 2, 2019 · pp. 12–19 Read article
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General and Organic Chemistry Laboratory Experiments for Science, Pre-medical, and Pharmacy Students – Chapter V: Organic Synthesis
Abstract: Organic synthesis can be classified into many types, including simple one-step synthesis, multi-step, one-pot, microwave, or green synthesis. Each type of synthesis takes place through a specific pathway depending on reactants involved, the reaction conditions, the catalyst, the protection group, and the duration of the reaction. In some cases, the required compound can be prepared by more than one procedure, and an expert chemist prefers the procedure by which the …
Published in International Journal of Analytical and Applied Chemistry · Vol. 12, Issue 2, 2026 · pp. 8–16 Read article
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Dynamic Matrix Control Versus Nonlinear ModelPredictive Control for the Van de Vusse ContinuousStirred-Tank Reactor: Diagnosing and Correcting aCost-Function Pathology That Masked NMPC’sTrue Performance
Abstract: The Van de Vusse reaction in a continuous stirred-tank reactor (CSTR) is a benchmark for nonlinear multivariable control, but its narrow operating envelope creates a trap for nonlinear model predictive control (NMPC): when the setpoint step is small relative to the plant’s reachable range, a standard quadratic NMPC cost function can make zero control action mathematically optimal, even with a perfect prediction model. This paper documents that failure mode, traces …
Published in International Journal of Chemical Separation Technology · Vol. 12, Issue 2, 2026 · pp. 55–66 Read article
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Vehicle to Grid and Grid to Vehicle single phase Grid
Abstract: This paper contains the modeling and intelligent control of Vehicle-to-Grid and Grid-to-Vehicle single-phase bidirectional converter. It is suggested to have a hybridized double-loop control architecture including an outer DC-link voltage regulation loop and an inner grid current control loop. A voltage control loop is added to a DC-link voltage adjustment system with fuzzy logic controller (FLC), to adjust dynamic performance under various operating conditions controlled by adaptively regulating the DC-link …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 12, Issue 2, 2026 Read article
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Bidirectional DC–DC Converter Design and Control for EV Charging Stations with Grid Support Capability
Abstract: The rapid proliferation of electric vehicles (EVs) has intensified the demand for advanced charging infrastructure capable of delivering reliable, efficient, and grid-aware power management. Conventional unidirectional chargers are inadequate for modern smart-grid applications, as they preclude the utilization of stored battery energy for grid support functions. This paper presents the design, mathematical modeling, and simulation-based validation of a non-isolated bidirectional DC–DC buck–boost converter rated at 20 kW for EV charging …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 12, Issue 1, 2026 Read article
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A Study of Delta Modulation Techniques for Bandwidth- Efficient Signal Transmission
Abstract: Delta modulation is an important signal processing technique widely used in digital communication systems for efficient analog-to-digital signal conversion and bandwidth reduction. With the increasing demand for high-speed and low-complexity communication systems, bandwidth-efficient transmission methods have become essential in modern telecommunication networks. This study presents a comprehensive analysis of delta modulation techniques and their role in improving signal transmission efficiency in digital communication environments. The paper examines the operating principles …
Published in International Journal of Digital Communication and Analog Signals · Vol. 12, Issue 1, 2026 · pp. 31–43 Read article
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A Sensor-Based Soil Monitoring System for Better Crop Harvesting
Abstract: Crop productivity is strongly affected by soil health, environmental conditions, and the availability of timely and accurate monitoring data. Traditional soil testing and crop assessment methods are labor-intensive and time-consuming. They also lack real-time capabilities, which limits efficient agricultural decision-making. This paper proposes an IoT-enabled smart soil monitoring and crop management system that provides real-time analysis of important soil and environmental parameters to improve agricultural productivity. The proposed system uses …
Published in International Journal of Plant Biotechnology · Vol. 12, Issue 1, 2026 · pp. 18–24 Read article
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Study of the Effect of SLS Loading on the One-Pot Synthesis of Substituted Piperidines
Abstract: Piperidine derivatives represent a vital class of nitrogen-containing heterocycles with extensive pharmacological and industrial significance. Their synthesis has garnered considerable interest due to their presence in numerous bioactive molecules, including drugs with CNS activity, analgesic properties, and antimicrobial effects. Traditional multi-step synthetic pathways are often time-consuming and resource-intensive. To address this, one-pot multicomponent reactions (MCRs) have emerged as an efficient and eco-friendly alternative, allowing for the rapid construction of complex …
Published in International Journal of Green Chemistry · Vol. 12, Issue 1, 2026 · pp. 1–9 Read article
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THE DESIGN AND CONSTRUCTION OF AN INVERTER SYSTEM
Abstract: Efficient inverter technologies have become necessary due to the growing need for dependable,sustainable, and affordable power supply systems. An electronic device known as an invertersystem transforms direct current (DC) from a battery or renewable energy source into alternatingcurrent (AC), which can be used to power appliances in homes, businesses, and industries. Thisstudy aims to provide a thorough description of the architecture, construction, and operation of auseful and effective inverter system. …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 11, Issue 2, 2025 Read article
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Economical ways to synthesize Nucleotides from Safe and Cheaper raw materials
Abstract: Cytosine is a fundamental nitrogenous base present in both DNA and RNA, playing a critical role inessential cellular processes such as replication, transcription, gene regulation, signal transduction, andDNA repair. Due to its central biological importance, the efficient and cost-effective synthesis of cytosinehas garnered significant interest across biochemical, pharmaceutical, and industrial sectors. However,most conventional synthetic methods rely on complex enzymatic transformations or require expensiveand structurally elaborate starting materials, thereby limiting their …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 11, Issue 2, 2026 · pp. 1–7 Read article
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Economical ways to synthesize Nucleotides from Safe and Cheaper raw materials
Abstract: Cytosine is a fundamental nitrogenous base present in both DNA and RNA, playing a critical role inessential cellular processes such as replication, transcription, gene regulation, signal transduction, andDNA repair. Due to its central biological importance, the efficient and cost-effective synthesis of cytosinehas garnered significant interest across biochemical, pharmaceutical, and industrial sectors. However,most conventional synthetic methods rely on complex enzymatic transformations or require expensiveand structurally elaborate starting materials, thereby limiting their …
Published in International Journal of Chemical Synthesis and Chemical Reactions Read article
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Performance Analysis of Isolated Zeta Converter Usedfor 2-Wheeler EV Charger
Abstract: Electric vehicles (EVs), particularly two-wheelers, are gaining traction as sustainable urban mobility solutions. However, the lack of quick and easy charging infrastructure makes it difficult for them to be widely adopted. It’s no surprise that the electric vehicle (EV) market is expanding very quickly. With the many benefits of EVs, such as lower emissions, reduced fuel costs, and quieter operation, they are becoming an increasingly attractive option for environmentally conscious …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 11, Issue 2, 2025 · pp. 1–11 Read article
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Effect of the class of activating agent (inorganic vs. organic) on the structure of activated carbon materials from biomass †
Abstract: The impact of the class of the activating agent (inorganic Vs organic) on the structure and the crystallographic parameters of the activated carbon materials (ACMs) from biomass was studied. The stems of the waste land weed native of India, namely, Calotropis gigantea were used as a representative example for the biomass based sustainable raw material. Likewise, carbonate (K 2 CO 3 ) and oxalate (Na 2 C 2 O 4 …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 11, Issue 1, 2026 · pp. 27–35 Read article
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Quantification of Morphine, Codeine, and Dihydrocodeine in Carissa carandas Leaves and Fruit Using LC-MS/MS: The Impact of Drying on Alkaloid Concentration
Abstract: This study presents a method for quantifying morphine, codeine, and dihydrocodeine in Carissa carandas (Karonda) leaves and fruit, employing morphine-D3 as an internal standard (1 µg/mL) to ensure accuracy. Samples are prepared at 25 ng/mL and extracted using solvent techniques, with an optional solid-phase extraction step to mitigate matrix effects. Quantification is conducted via LC-MS/MS, providing robust sensitivity. Results show that drying concentrates these alkaloids, particularly morphine in fruit, due …
Published in International Journal of Environmental Chemistry · Vol. 11, Issue 1, 2025 · pp. 49–61 Read article
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Level of cardiovascular endurance among the college students in selected institute, Mangalore
Abstract: Health is defined by the body's normal functioning capacity and the lack of illness or impairment. Leading a sedentary lifestyle elevates the likelihood of encountering numerous cardiovascular conditions. Exercise represents a consistent form of activity designed to enhance one's physical condition. Through consistent exercise, people can maintain a healthy heart function. Objective: To assess the level of cardiovascular endurance among college students and to associate the level of cardiovascular endurance …
Published in International Journal of Nursing Critical Care · Vol. 10, Issue 2, 2024 · pp. 33–38 Read article
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Study the Behavior of Geometric Non-Linearity in High- Rise Building
Abstract: Generally, in any analysis method adopted in the construction industries it should be useful for the stability, economy and strength point of view. For such structures the different analysis method is adopted based on the requirement of the building. From which the structure loads and other loads are coming over the structure are calculated and applied over foundation. But in practical execution the method of working is a little bit …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 10, Issue 2, 2024 · pp. 1–9 Read article
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Kinetic Modeling of Biomass Pyrolysis for Renewable Energy Production.
Abstract: Biomass pyrolysis is a promising technology for renewable energy production, offering a sustainable alternative to fossil fuels. This process involves the thermal decomposition of organic materials in the absence of oxygen, resulting in the generation of bio-oil, syngas, and biochar. Kinetic modeling of biomass pyrolysis is essential for optimizing the process and enhancing the yield and quality of the products. This abstract presents a comprehensive review of kinetic models used …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 1, 2024 · pp. 1–6 Read article
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Commercial Scale Quantification of Lignin
Abstract: Lignin, an aromatic biopolymer, in the terrestrial lignocellulosic biomass constitutes the single largest and sustainable source of biofuels and biochemicals. The recalcitrant nature of lignin is a hindrance to its chemical or biochemical conversion. Moreover, its insolubility in water too is a major challenge in its quantification which is a necessary step prior to and after its conversion. Though there are celebrated quantification methods like the classical Klason lignin method …
Published in International Journal of Environmental Chemistry · Vol. 11, Issue 2, 2025 · pp. 20–25 Read article
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How to Overcome the Problems of Urbanisation: A Study for Solution
Abstract: ABSTRACT Rapid mushrooming of squatter settlements on land pockets may be seen as usual fallout of urbanization. The factors identified for the formation and growth of squatter settlements are poverty, absence and inadequacy of urban planning, migration, and many other disadvantages. In developing countries, rapid urbanization is accompanied by diverse health problems including psychiatric complaints and disorders like anxiety, depression, insomnia, fatigue, irritability and poor memory that account for 90 …
Published in International Journal of Town Planning and Management · Vol. 10, Issue 1, 2024 · pp. 10–18 Read article