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46 articles for “irradiation”
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Value Addition of Quartz Gemstones through Gamma Irradiation
Abstract: Color enhancement of gemstones through gamma irradiation is an established technology throughout the world. By value addition, the traders earned manifold prices to these colorless stones as compared to the fresh ones. For the color enhancement of these semi-precious stones, optimized doses of irradiations are required. To get the optical properties of the stones and to investigate the crystal lattice and chemical composition, X-Ray diffraction (XRD) and energy dispersive X-ray …
Published in International Journal of Energetic Materials · Vol. 5, Issue 2, 2019 · pp. 61–67 Read article
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Modification of PVA & PMMA with blending and UV Irradiation
Abstract: Abstract-Vinyl polymers have good scope of modification by crosslinking, grafting and other different techniques. UV irradiation is also used for surface modification. In this study PVA and PMMA modified by blending with starch as well as with UV irradiation. Surface crosslinked PVA and PMMA films were set up by applying ultra violet (UV) irradiation. The impacts of convergence of photosensitizer watery arrangement, drenching time and UV light portion on a …
Published in International Journal of Chemical Separation Technology · Vol. 6, Issue 1, 2020 · pp. 1–5 Read article
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A Study on Sun Path of Coimbatore and Its Irradiation Effects on Buildings using Ecotect Software and Design Recommendations for Minimizing the Heat Gain
Abstract: Understanding the sun path graphically in a three-dimensional figure by means of software can help us to predict the effects of irradiation on the buildings at a specific location. The Ecotect software is a tool that gives a clear image of the movement of the sun all around the year with exact Azimuth and Altitude angles in both graphical and tabular format. This paper is a research based on the …
Published in International Journal of Architecture and Infrastructure Planning · Vol. 5, Issue 2, 2019 · pp. 36–47 Read article
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Three-Level Interleaved Boost Converter with Irradiance Adaptive Controller for Solar Power Utilization
Abstract: Solar energy conversion through photovoltaic is a rapidly growing source of green power supply. Therefore, improving the efficiency of PV system is considered as an important factor in supporting this trend. However, this concerns not only the improvement of PV cells, but also the efficiency of the power electronics circuits and the controls associated with them. Also, the PV modules are operated at low voltage levels, therefore, large voltage boosting …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 4, Issue 2, 2018 · pp. 1–8 Read article
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SYNTHESIS, CHARACTERIZATION AND STUDY OF PHOTOCATALYTIC ACTIVITY OF PVA CAPPED ZINC INDIUM SELENIDE NANOPARTICLES UNDER UV LIGHT IRRADIATION USING METHYL RED DYE
Abstract: In this work, we report the structural morphology, optical properties and photocatalytic activity of polymer capped zinc indium selenide nanoparticles, which have been synthesized by solvothermal method. PVA is acted as capping agent. The PVA capped zinc indium selenide nanoparticles were characterized using XRD, SEM with EDAX, AFM, TEM and UV-Vis absorption spectroscopy. The structural properties of PVA capped zinc indium selenide nanoparticles have been characterized by X-ray diffraction (XRD) …
Published in International Journal of Polymer Science and Engineering · Vol. 5, Issue 1, 2019 · pp. 41–51 Read article
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Study and Simulation of Radiation Effects on MOS Structures through High Energy Ions
Abstract: MOS structures exposed to 305 MeV Kr and 710 MeV Bi ions irradiation with fluences of 109 cm 2 and 1010 cm 2 were investigated by capacitance measuring methods (C–V, C–t), completed by quasistatic low-frequency C–V and DLTS measurements. The irradiated MOS structures were functional in spite of a high density of radiation defects. The electric activity of the defects brought a sharp decrease in the generation parameters tr and …
Published in International Journal of Applied Nanotechnology · Vol. 3, Issue 2, 2017 · pp. 40–46 Read article
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Review on Types of Automatic Sterilization Systems in Hospitals
Abstract: The current review deals with sterilization systems in hospitals, Sterilization is the comprehensive extermination of germs and disposal of their remains, and the process of removing or killing life manifestations of microorganisms; Surface bacteria and viruses include the surface of human skin or surgical device surfaces with medications or sterile fluids (or by radiation in the case of surgical devices). The World Health Organization has defined it as a term …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 6, Issue 1, 2020 · pp. 15–21 Read article
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Deep Reinforcement Learning-Based MPPT for PV Systems Under Partial Shading: A Hybrid Metaheuristic-Optimized Control Framework.
Abstract: Partial shade and quickly changing environmental conditions make Maximum Power Point Tracking (MPPT) in photovoltaic (PV) arrays particularly difficult. In these situations, traditional algorithms frequently fail to find the global optimum or experience sluggish convergence and steady-state oscillations. To obtain reliable, real-time MPPT under non-uniform irradiance, this research suggests a hybrid control architecture that combines a deep recurrent reinforcement learning (DRL) agent with metaheuristic-based parameter optimization and a digital-twin training …
Published in International Journal of Electrical Power System and Technology · Vol. 12, Issue 1, 2026 · pp. 35–46 Read article
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Deep Reinforcement Learning-Based MPPT for PV Systems Under Partial Shading: A HybridMetaheuristic-Optimized Control Framework.
Abstract: Partial shade and quickly changing environmental conditions make Maximum Power Point Tracking (MPPT) in photovoltaic (PV) arrays particularly difficult. In these situations, traditional algorithms frequently fail to find the global optimum or experience sluggish convergence and steady-state oscillations. To obtain reliable, real-time MPPT under non-uniform irradiance, this research suggests a hybrid control architecture that combines a deep recurrent reinforcement learning (DRL) agent with metaheuristic-based parameter optimization and a digital-twin training …
Published in International Journal of Electrical Power System and Technology · Vol. 12, Issue 1, 2026 Read article
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Sustainable Labware Solutions: A Study of Biodegradable Modified Polypropylene for Sterilization‑Resistance
Abstract: This study investigated the impact of incorporating a 1‑3% by weight of biodegradable additive into polypropylene (PP) using twin‑screw extrusion, followed by injection molding to prepare test specimens. The effects of the additive on the rheological, thermal, mechanical, and optical properties of PP were investigated, along with the impact of two common sterilization methods: autoclave (121°C, 15 min, 0.11 MPa) and electron beam (E-Beam, 50 kGy) irradiation. The results showed …
Published in International Journal of Composite Materials and Matrices · Vol. 11, Issue 1, 2025 Read article
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Advance in the Synthesis of Oxadiazole Based Heterocyclic Compound
Abstract: The five members of the heterocyclic ring 1,3,4-oxadiazole are necessary for the production of strong bioactive molecules. Numerous pharmacological effects, including anti-inflammatory, antibacterial, anticancer, antitubercular, anticonvulsant, anti-HIV, hypoglycemic, and antioxidant qualities, are exhibited by this intriguing class of chemicals. We have created four novel 1,3,4-oxadiazole compounds in the continuing study, which are sourced from the NSAID Ibuprofen. Melting point analysis and TLC were used to verify the compounds' purity. Open …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 9, Issue 2, 2023 · pp. 10–15 Read article
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EFFECTS OF LOW FREQUENCY ULTRASOUND TREATMENT IN MITIGATING SULFATE REDUCING BACTERIA
Abstract: Biocorrosion is associated to microorganism such as Sulfate Reducing Bacteria (SRB) presence in the environment and cause deterioration of metallic and non-metallic materials. Chemical bactericides are commonly used to mitigate SRB in the treatment process of oilfield but this method comes with disadvantages such as lower in efficiency, environment pollution, high cost and health problems. This paper shows a systematic investigation of 20 kHz frequency Ultrasound (US) performance as an …
Published in International Journal of Water Resources Engineering · Vol. 4, Issue 2, 2018 · pp. 1–6 Read article
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Electrical Characteristics of a Solar Cell/PV Module
Abstract: Conventionally, a PV system consists of solar PV arrays and electric converters. A PV array is formed by series/parallel combination of solar modules. Some operating conditions result in non-uniform irradiance of PV array, such as shadows, clouds, dirt, debris, bird droppings, different orientations and tilts, and so on. If several solar cells in a series PV module are mismatched due to non-uniform irradiance, these cells will limit the output current …
Published in International Journal of Analog Integrated Circuits · Vol. 3, Issue 2, 2017 · pp. 25–35 Read article
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Validation of Selected SPV Module
Abstract: This paper presents the mathematical modelling and its MATLAB simulation of selected photovoltaic module manufactured by BHEL (SL No.-E1200127, Type-L24170) in which parallel connected solar cell (Np=1) and Series connected solar cell(Ns=72) in order to estimate its behavior of SPV module and Finally compare the simulation results with the live field values measured with the help of Amprobe solar analyzer and Senser (S-4000). Using measured Irradiance(S) and module temperature (Avg. …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 4, Issue 1, 2018 · pp. 8–16 Read article
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Growth of CNT in a Stainless Steel Surface by Using Gold Nanoparticle as a Catalyst for Corrosion Less Implants
Abstract: Now a day’s maximum implant are failure due to corrosion or infection. And the infection is happened due to growth of Escheria coli, steptococus, miccrobacterium tuberculosis like bacteria. Carbon nanotubes based stainless steel implant may be the promising outcome for corrosion. Carbon nano tubes when irradiate with NIR will heat up to 70oC and it has been demonstrate that folic acid adsorbed on carbon nano tubes allow specific binding to …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 2, Issue 2, 2016 · pp. 1–5 Read article
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Sonochemical Synthesis of Copper Nanoparticles:Process Fundamentals, Scale-Up Challenges, andIndustrial Opportunities
Abstract: The sonochemical synthesis of copper nanoparticles (Cu NPs) has emerged as a powerful and widely investigated strategy in nanomaterials research, owing to the unique physicochemical conditions generated during ultrasonic irradiation. Acoustic cavitation induced by sonication produces transient microenvironments characterized by extremely high local temperatures, pressures, and rapid cooling rates, which collectively enable efficient reduction of copper precursors into nanoscale particles. These conditions cannot be easily achieved through conventional synthetic routes, …
Published in International Journal of Chemical Engineering and Processing · Vol. 12, Issue 2, 2026 · pp. 37–43 Read article
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Bifacial Solar Photovoltaics Systems Design and Modelling
Abstract: The rapid evolution of photovoltaic (PV) technologies has led to the emergence of bifacial solar modules as a superior alternative to conventional monofacial panels. Bifacial modules are designed to harness solar irradiance from both the front and rear surfaces, enabling increased energy yield through ground-reflected radiation, known as albedo. This paper presents the design and simulation-based modelling of bifacial solar PV systems, tailored to Indian climatic and geographic conditions. Using …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 11, Issue 2, 2025 · pp. 20–29 Read article
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Hardware-Centric Analysis and Optimization of Perturb and Observe Techniques for Maximum Power Point Tracking in Solar Photovoltaic Systems
Abstract: Operating conditions like temperature and irradiance fluctuations can significantly reduce the power output of PV systems, presenting a key challenge. Additionally, contemporary MPPT methods demand high computational resources and face difficulties in maintaining optimal PV array output when weather conditions change quickly. The P&O technique, though widely used, falls short in accurate maximum power point tracking amid sudden shifts in solar insolation due to incorrect adjustments in the duty cycle. …
Published in International Journal of Electrical Power System and Technology · Vol. 11, Issue 1, 2025 Read article
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Hardware-Centric Analysis and Optimization of Perturb and Observe Techniques for Maximum Power Point Tracking in Solar Photovoltaic Systems
Abstract: Operating conditions like temperature and irradiance fluctuations can significantly reduce the power output of PV systems, presenting a key challenge. Additionally, contemporary MPPT methods demand high computational resources and face difficulties in maintaining optimal PV array output when weather conditions change quickly. The P&O technique, though widely used, falls short in accurate maximum power point tracking amid sudden shifts in solar insolation due to incorrect adjustments in the duty cycle. …
Published in International Journal of Electrical Power System and Technology · Vol. 11, Issue 1, 2025 Read article
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Different Method for the Production of OxadiazoleCompounds
Abstract: The creation of procedures for the environmentally friendly synthesis of materials and chemicals isreferred to as "green synthetic protocol." The synthesis of different biologically active compounds isdone through energy-efficient and environmentally safe processes like microwave irradiationtechnology, ultrasound-mediated synthesis, photo-catalysis (ultraviolet, visible, and infraredirradiation), molecular sieving, grinding, and milling techniques, etc. These procedures are regardedas sustainable technology and have gained value as green protocols for the synthesis of novelmedicinal compounds because …
Published in International Journal of Chemical Engineering and Processing · Vol. 10, Issue 1, 2024 · pp. 20–26 Read article