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890 articles for “activity”
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Human Health is Affected by Noise Pollution
Abstract: Noise pollution has a substantial negative impact on human health. Long-term exposure to loud noises can cause stress, hearing loss, sleep disruptions, and cardiovascular problems, among other health problems. Noise decreases productivity and hinders cognitive function by making it difficult to focus and communicate. It may also result in agitation, worry, and even help develop mental health issues. To lessen the negative impacts of noise pollution on human well-being, adequate …
Published in International Journal of Green Chemistry · Vol. 9, Issue 1, 2023 · pp. 44–48 Read article
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An assessment of commercial production of radioisotopes in nuclear power reactors as cogeneration projects
Abstract: Nuclear cogeneration projects represent an important non-electric application of nuclear power. This study analyses the feasibility of using commercial nuclear power reactors for production of important radio-isotopes in significant quantities as a form of nuclear cogeneration activity. The importance of nuclear and radiation based techniques in a variety of fields is growing rapidly. Thus diversifying into this activity can open up new routes of revenue creation for existing power plants …
Published in International Journal of Analytical and Applied Chemistry · Vol. 6, Issue 2, 2020 · pp. 1–11 Read article
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The Performance of Microbial Lipase Immobilized onto Ion Exchange Resins and onto the Natural Zeolite Clinoptilolite
Abstract: The paper describes a study into the performance of a microbial lipase immobilized on to four different ion exchangers. Lipase from the yeast Candida rugosa was immobilized onto the anionic ion exchange resins Dowex MWA-1, Purolite A109, and Amberlite IR45. The performance of the immobilized lipase in each case was evaluated by measuring the immobilization efficiency and by following the reaction kinetics of hydrolysis of a tri-glyceride ester to free …
Published in International Journal of Chemical Separation Technology · Vol. 2, Issue 2, 2016 · pp. 24–32 Read article
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A Study on the Effect of Current Density on Electrocatalytic Behavior of Ni–Co Alloy
Abstract: Active, stable and more efficient electrocatalysts are the requirements for water splitting applications. In this direction, the present paper presents the experimental results on electrolytic development of Ni–Co alloy coatings, and their application as electrode material for hydrogen evolution reactions (HER) and oxygen evolution reactions (OER). The Ni–Co alloy coatings were electrodeposited on copper substrate from a sulfate bath, using the glycerol as additive. The deposited coatings were then tested …
Published in International Journal of Chemical Engineering and Processing · Vol. 3, Issue 1, 2017 · pp. 9–23 Read article
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Pyrolysis Characteristics and Isoconversional kinetics of kusum deoiled seedcake.
Abstract: The pyrolysis characteristics and kinetics of kusum de-oiled seed cake were conducted using a Thermo gravimetric analyzer. Thermogravimetric analysis of biomass was carried out at three different heating rates of 10, 20, 30, ̊ C/min from 28 ̊ C to 1000 ̊ C under N2 atmosphere. The results indicated that the biomass was decomposed in the temperature range of 270 ̊C to 520 ̊ C and further decreased when temperature …
Published in International Journal of Environmental Chemistry · Vol. 2, Issue 2, 2016 · pp. 9–17 Read article
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PARABENS AS FUTURE POTENTIAL DRUG
Abstract: Parabens are class of chemicals widely used as preservatives in the cosmetic and pharmaceutical industries. They are effective preservatives in many types of formulas. These compounds and their salts are used primarily for their bacterial and fungicidal properties. They are also used as food additives. Their analogues viz. ethers and hybrid / fused molecules also possess various biological activities which prompted us to synthesize few more analogues for their future …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 4, Issue 1, 2018 · pp. 21–33 Read article
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A Review on Experimental Investigation of Fibre Reinforced Metakaolin-Based Geopolymer Concrete
Abstract: The development of new binders, as an alternative to Portland cement (PC), by alkaline activation, is a current researcher’s interest. As Concrete is the most commonly used material for construction. The worldwide production of cement has greatly increased after 1990. Production of cement results in a lot of environmental pollution as it involves the emission of CO2 gas. There are many ways to which we can reduce environmental pollution (carbon …
Published in International Journal of Concrete Technology · Vol. 3, Issue 1, 2017 · pp. 44–55 Read article
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Experimental Study of Mechanical Properties Geopolymer Concrete.
Abstract: This experimental study aimed to define the parameters for optimum mix design of geopolymer concrete made by partial replacement of cement. The geopolymer concrete is nothing but the formation of fly ash and alkali activators. Fly ash is the waste product from the thermal power station and may use as the pozzolanic material. But, only fly ash is may not the only replacement for the cement, for the more binding …
Published in International Journal of Concrete Technology · Vol. 5, Issue 2, 2019 · pp. 16–22 Read article
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Grid Interconnection of RES at the Distribution Level with Power-Quality Enhancement Features
Abstract: This paper describes enhanced technique of power quality at utility end in a network framework associated with renewable source of energy for power generation. With advancement of new functionalities sunlight based vitality based Photovoltaic cells are forthcoming energy source with higher efficiency. With the increase in load demand, the Renewable Energy Sources (RES) are increasingly connected in the distribution systems which utilizes power electronic Converters/Inverters. The Photo Voltaic (PV) Panel …
Published in International Journal of Analog Integrated Circuits · Vol. 1, Issue 1, 2015 · pp. 18–26 Read article
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Inverse ABCD Parameter Determination Using Spice
Abstract: Spice/Pspice Models using the inverse transmission parameters for linear two port analysis are given. The inverse transmission parameter determination for a circuit using SPICE2/Pspice is carried out. While the first procedure and files are for the calculation of Inverse ABCD parameters where the circuit is purely resistive and dependent sources, the second is for general two port network using linear elements and small signal models of active devices like BJT, …
Published in International Journal of Analog Integrated Circuits · Vol. 3, Issue 1, 2017 · pp. 14–19 Read article
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Algorithms Used for D-STATCOM to Achieve Compensation Current Detection
Abstract: Now a day’s power electronic based equipments are used in industrial and domestic purpose. Passive filter has been used traditionally for mitigating the distortion due to harmonic current in industrial power systems. But they have many drawbacks such as resonance problem, dependency of their performance on the system impedance etc. To overcome of such problem active power filters is introduced. It has no such drawbacks like passive filter. They inject …
Published in International Journal of Analog Integrated Circuits · Vol. 3, Issue 2, 2017 · pp. 7–19 Read article
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Grid-Tied PV System with Small DC-Link Capacitor and Low-Frequency Ripple-Free Maximum Power Point Tracking
Abstract: This paper proposes a grid-tied cascaded multilevel inverter (CMI) PV system based on current-fed dual-active-bridge DC–DC converters using small dc-link capacitors. The CMI has many advantages, such as modularity, low harmonic spectra, high ac voltage application with low device rating, and low electromagnetic interference. In addition, distributed maximum power point tracking (MPPT) terminal for segmented photovoltaic (PV) arrays can be achieved by CMI PV converter. The low-frequency ripple-free MPPT is …
Published in International Journal of Electrical Power System and Technology · Vol. 4, Issue 1, 2018 · pp. 39–47 Read article
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FUZZY LOGIC CONTROLLER FOR HARMONIC REDUCTION IN GRID CONNECTED SOLAR PV SYSTEM
Abstract: Solar PV systems are increasingly present in the electrical distribution systems due to the government’s incentives and low production cost of a developed PV technology. Power electronic converters play a major role in the integration of PV system with utility grid for high power generation. Extensive use of these devices leads to power quality problems such as sag, swell, harmonics, reactive power generation. Among these power quality issues harmonics are …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 2, Issue 2, 2016 · pp. 24–36 Read article
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Multifunctional Shunt Hybrid Power Filter and Thyristor Controlled Reactor for Distributed Generation Integration and Power Quality Improvement
Abstract: This project presents a multifunctional PV fed SHPF-TCR compensator for achieving maximum benefits from these grid-interfacing inverters. The inverter is controlled to perform as a multi-function device by incorporating active power filter functionality. An inverter can be used as power converter to insert the power created from RES to the grid, and shunt APF to reimburse load current harmonics. A SHPF-TCR compensator of a TCR and a SHPF has been …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 3, Issue 2, 2017 · pp. 13–25 Read article
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Nanozymes: Unleashing the Catalytic Power of Nanomaterials in Biotechnology
Abstract: This article explores the fascinating field of nanozymes, which are nanomaterials that exhibit enzyme-like catalytic activities. Nanozymes have emerged as a powerful tool in biotechnology, offering advantages such as high stability, tunable activity, and easy synthesis. This article delves into the diverse applications of nanozymes, ranging from biosensing and bioimaging to environmental remediation and therapeutics. We will explore the underlying principles behind nanozyme catalysis, highlight key advancements, discuss challenges and …
Published in International journal of Nanobiotechnology · Vol. 9, Issue 1, 2023 · pp. 30–37 Read article
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Synthesis of 2-(2,3-dichlorophenyl)-5-(substituted)-1,3,4-Oxadiazole Microcrystals by Solvothermal Method and Assessment of in vitroAntibacterial with Docking and in vivo Larvicidal Efficiency with Comprehensive Toxicological Studies
Abstract: 2,5-Disubstituted 1,3,4-oxadiazole compounds are among the most beneficial organic molecules of biological importance. In the current research, a new series of 2-(2,3-dichlorophenyl)-5-(substituted)-1,3,4-oxadiazole compounds have been synthesized solvothermally from derivatives of2,3-dichloro-N'-(substituted)benzohydrazide and Chloramine-T as an oxidizing agent using autoclave with good yield. The obtained products are micro-sized (5µm–20µm) crystals confirmed through SEM. The structures of synthesized compounds were confirmed through IR, 1H-NMR, 13C-NMR, mass Spectroscopy, Elementary analysis. Molecular docking study shows …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 6, Issue 1, 2020 · pp. 29–44 Read article
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The Current and Potential Usage Areas of Shape Memory Polymer Composites in the Class of Multifunctional Materials
Abstract: Shape memory polymer composites can be programmed into a temporary shape and recover their original shape by applying different stimuli as temperature, UV, magnetic and electrical.In this way, SMPCs in the active and deformable material class, due to its advantages such as being activated by various activation methods and good biocompatibility properties, it has become the focus of research in the field of creating multifunctional materials. They are widely used …
Published in International Journal of Polymer Science and Engineering · Vol. 9, Issue 1, 2023 · pp. 1–4 Read article
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SeamlessScan: Transforming Grocery Checkout with a Next- Generation Billing Solution
Abstract: The supermarket is a type of retail store that sells food primarily. A grocery store sells food in bulk. It is not wise to purchase food from a roadside vendor given the rise in global pollution. Operating a grocery shop properly involves agreat deal of obligation, whether you are in charge of a small, independently owned store as one that is a part of a bigger company. The grocery store …
Published in International Journal of Computer Aided Manufacturing · Vol. 9, Issue 1, 2023 · pp. 22–28 Read article
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Exploring the Current Practices of Nurses, Preparing and Administering Chemotherapeutic Drugs to Children
Abstract: Introduction: Emergence of chemotherapeutic drugs has immensely benefitted current prognosis of childhood cancers but unintentional exposure to harmful agents may endanger life of health care workers who repeatedly get exposed to cytotoxic drugs. Nurses’ safety can be ensured with evidence based standard protocols related to chemotherapeutic drug preparation and administration, use of PPE, proper handling of hazardous waste, spill management etc. Objective: To explore ongoing practices, casual daily routine activities, …
Published in International Journal of Nursing Critical Care · Vol. 6, Issue 2, 2020 · pp. 52–59 Read article
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The Success of Participatory Workplace Interventions in Minimizing Office Workers' Sedentary Behaviour: The Study is Quasi-experimental
Abstract: Aim: This investigation has three goals: (1) to evaluate the level of sedentary behavior currently being practiced by office personnel; (2) To determine if participatory workplace interventions are effective at reducing office workers' inactive behavior; (3) to Discover the relationship between their pre-test sedentary behavior level and the chosen demographic factors. Background: Occupational sedentary behavior is a significant factor in the total risk of being sedentary. There is little proof …
Published in International journal of Nursing Science Practice and Research · Vol. 9, Issue 1, 2023 · pp. 39–47 Read article