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1957 articles for “Active” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Activating agents control the morphology of activated carbon materials from biomass
Abstract: The stems of the plant Calotropis gigantea (Cg) were were used as a feedstock for the activated carbon material. Carbonate (K 2 CO 3 ) and oxalate (Na 2 C 2 O 4 ) were used as chemical activating agents. The morphological features of the activated carbon materials were characterized using FEG-SEM. The morphology of the activated carbon materials is found to depend on the type of activating agent used. …
Published in Journal of Catalyst & Catalysis · Vol. 12, Issue 1, 2025 · pp. 27–38 Read article
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Engineering Properties of Alkali Activated Materials Produced from Thu Duc Water Plant Waste Sludge, Fly Ash, and Alkaline Activator by Semi-dry Pressing Method
Abstract: Alkali activated material is a product manufactured to serve the needs of construction. Theproduction of alkali activated material has many advantages compared to other traditional bakedmaterials. The product is not heated at high temperature, so it saves energy and reduces the amountof waste impacting negatively to ecology system and human life. The raw materials for production ofalkali activated materials are re-used from other industrial solid wastes such as fly ash, …
Published in Journal of Polymer & Composites · Vol. 9, Issue 1, 2021 · pp. 39–48 Read article
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A Study on adsorption of Phenol red dye and Chromium (VI) metal ion using activated carbon derived from Lantana camara with the activation of potassium hydroxide.
Abstract: Commercial activated carbons are expensive to produce and regenerate, it is essential to produce activatedcarbon using low-cost raw materials and methods. This study's goal is to demonstrate the possible adsorptionproperties of activated carbon made from Lantana camara for the removal of dyes and metal ions fromaqueous solutions. In this study, activated carbon from Lantana camara stems was obtained through a one-step chemical activation procedure using potassium hydroxide KOH. The surface …
Published in Journal of Nuclear Engineering & Technology · Vol. 13, Issue 1, 2023 · pp. 1–10 Read article
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Control Strategies for Shunt Active Power Filters in Total Harmonic Distortion Reduction: A Comprehensive Review
Abstract: This paperwork presents a single-phase shunt active power filter to reduce total harmonic distortion.Harmonic pollution in the power system has increased significantly because of the widespread usage of nonlinearsingle phase power electronic equipment on the low voltage side. For electrical engineers, improving powerquality has emerged as their greatest obstacle. A single-phase shunt active power filter was constructed inMATLAB/SIMULINK using a voltage supply inverter and a hysteresis current regulator. The performance …
Published in Recent Trends in Electronics Communication Systems · Vol. 10, Issue 2, 2023 · pp. 30–42 Read article
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Preparation and Characterization of Activated Carbon from Bamboo by Chemical Activation
Abstract: In this study, an attempt was made to prepare an activated carbon (AC) from bamboo by chemical activation method. Phosphoric acid (H3PO4) was used as a chemical activation agent for the production of AC from bamboo under conditions of temperature 600 °C for 1 h. The AC is an excellent adsorbent and its applications are widely described in literatures. Prepared ACs, are characterized by standard methods XRD, SEM, FTIR, XRF. …
Published in Journal of Catalyst & Catalysis · Vol. 3, Issue 1, 2016 · pp. 1–6 Read article
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Steam Activated Carbon Material from the Fruit Shells of Sterculia foetida for Energy and Environmental Applications
Abstract: Steam activation of the biochar from Sterculia foetida forms a green route for the synthesis of activated carbon material with high specific surface area (1017 m2/g). The corresponding value with a chemical activating agent (K2CO3) is much lower (596 m2/g). Structural parameters of the activated carbon materials were deduced from XRD studies. Moreover the thermal stability of the activated carbon materials from steam activation is nearly 100°C higher than that …
Published in Journal of Water Pollution & Purification Research · Vol. 11, Issue 1, 2024 · pp. 23–33 Read article
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In-vitro assessment of plant growth promoting traits integrated with antagonistic activity of biosurfactant producing Bacillus species of oil contaminated soil
Abstract: Researchers are in search of microbial tools having plant growth promoting activity integrated to biosurfactant production potential to develop eco-friendly technique for sustainable agricultural. Presented study was undertaken to characterize the plant growth promoting activity of biosurfactant producing Bacillus species isolated from oil contaminated soil. Bacterial strains were identified as Bacillus licheniformis P1 and Bacillus velezensis P2, on the basis of morphological, biochemical and 16SrDNA gene sequence homology. Biosurfactant producing …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 12, Issue 3, 2022 · pp. 30–34 Read article
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Acetylcholinesterase and Butyrylcholinesterase Activities in Brain and Plasma of Several Species of Birds in India
Abstract: Since timely acquisition of concurrent controls is not always feasible, development of a reference data of normal cholinesterase (ChE) activities for various wildlife species particularly for birds is necessary to diagnose anticholinesterase exposure. In the present study, acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) activities in brain and plasma of several species of birds collected from Ahmedabad, India, during 2005–2007, were determined. Brain AChE activity ranged from 1.24 µmole/min/g in Indian white-backed …
Published in Research and Reviews: A Journal of Toxicology · Vol. 2, Issue 1, 2012 · pp. 1–9 Read article
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Characterization of Activated Carbon Prepared from Citrus Sinensis (Orange) Peels by X-ray Fluorescence Spectroscopy (XRF)
Abstract: The orange (specifically, the sweet orange) is the fruit of the citrus species Citrus sinensis in the family rutaceae. Citrus sinensis (orange) fruit is one of the common traditional plants grown in many areas in India. The wastes of the Citrus sinensis (orange) fruit called orange peels were used to prepare activated carbon through chemical activation method. The activated carbon is an excellent adsorbent and its applications are widely described …
Published in Emerging Trends in Chemical Engineering · Vol. 2, Issue 3, 2015 · pp. 50–52 Read article
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In vitro Evaluation of Kigelia pinnata Leaves for Its Antioxidative and Anticancer Activity
Abstract: Previous studies suggest that the Kigelia pinnata leaves have useful effects against diseases mediated through oxidative stress and cancers. In this study, leaves of Kigelia pinnata were studied for presence of different phytochemical constituents, anti-oxidant and anti-cancer activities.Crude methane extracts of Kigelia pinnata leaves showed cytotoxic activity in vitro against non-small cell lung cancinoma (A-549) cells using the MTT assay. Phytochemical evaluation showed the existence of alkaloids, terpenoids, flavonoids, tannins …
Published in Research and Reviews: A Journal of Health Professions · Vol. 9, Issue 1, 2019 · pp. 26–30 Read article
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Physical Activation Process and Characterization of Bioactive Carbon, with a Focus on its Applications
Abstract: Activated carbon is a form of carbon that has been processed to enhance its surface area and porosity. This processing enables it to function as an efficient adsorbent, attracting and retaining other molecules on its surface. In our environment, many types of biomass waste are inexpensive and renewable. Recently, there has been a growing interest in producing products from renewable resources. A prime example is the use of biomass to …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 507–517 Read article
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Design of a Geopolymer Based on Fly Ash and Metakaolin with a Solid, Liquid, and Powdered Alkaline Activator at High Temperatures
Abstract: In this work, the fresh and hardened properties of geopolymer concrete activated using solid, liquid, and powder alkaline activator systems, including fly ash and different amounts of metakaolin, are examined. Compressive and flexural strengths were assessed at 7 and 28 days in accordance with IS 516 (1959). Workability was evaluated using a slump test in accordance with IS 1199 (Part 2): 2018. At an ideal replacement level of 30%, the …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 712–726 Read article
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Influence of wall friction on Active Earth Pressure in Model Test
Abstract: Earth pressure theories occupy a paramount position in the field of geotechnical engineering. The knowledge of active earth pressure under static condition is essential in designing a retaining wall as the damage to such retaining structures may lead to disastrous failure. A retaining wall helps in maintaining the ground surface at different elevations on either side of it. Without such a structure, the soil at higher elevation would tend to …
Published in Journal of Geotechnical Engineering · Vol. 8, Issue 1, 2021 · pp. 12–19 Read article
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Harmonic Mitigation in Shunt Active Power Filter Regulation Approaches with Synchronous Reference Frame: An Extensive Analysis
Abstract: The Shunt Active Power Filter (SAPF) is discussed in this work as a means of removing line-side current harmonics. The Voltage Source Inverter (VSI) topology serves as the foundation for the Active Power Filter. It resolves the power system's harmonic current issue. Additionally, it balances the load on three phases and compensates for reactive power (if load is unbalanced). After measuring load current, it switches to the dq0 coordinate system. …
Published in Journal of Microcontroller Engineering and Applications · Vol. 10, Issue 3, 2023 · pp. 6–15 Read article
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Evaluation of Antimicrobial Activity of Some Medicinal Plants against Most Prevalent Diabetic Wound Pathogens
Abstract: The present research work attempts to evaluate antimicrobial activity of 90% ethanolic extracts of three traditional medicinal plants viz. Terminalia bellirica, Terminalia chebula, Pyhllanthus emblica. Since ethanol is the best solvent for dissolving antimicrobial compound present as active phytoconstituents in plants, these plants were extracted with ethanol. Each extract was tested for its antimicrobial activity against three most prevalent pathogenic microorganism associated with diabetic wounds, viz. Staphylococcus aureus (MTCC3160), Pseudomonas …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 4, Issue 1, 2015 · pp. 13–20 Read article
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Screening of Cold-Active Lipase from Psychotropic Fungi
Abstract: Lipase is a class of enzymes that catalyze as, hydrolysis of long-chain tri-glycoside and comprise the large significant group of bio-catalysts for biotechnological applications. Currently, the cold-active lipases (CLPS) are the enzyme of choice for pharmacists, organic chemists, biochemical, biophysicists and engineering processes, bio-technologists and micro-biologists as well as biochemists. The production of CLPs is mostly existed from psychrophilic microorganisms. Psychrophiles and psychrotrophs extracellular colds-active enzymes at low temperature (cold) …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 8, Issue 3, 2018 · pp. 1–5 Read article
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Cytotoxic, Anthalmintic and Analgesic Activities of the Methanol Extract of Ricinus communis (Family: Euphorbiaceae)
Abstract: The aim of this study was to evaluate the phytochemical screening, cytotoxicity, anthelmintic activity and analgesic properties of the methanol extract (leaves) of Ricinus communis (Family: Euphorbiaceae). The methanol extract of the leaves showed mild cytotoxic activity with the LC50 value 6.456 µg/mL compared to vincristine sulfate (LC50 0.812 µg/mL) using brine shrimp lethality bioassay. The anthelmintic activity was performed by observing the time of paralysis and the time of …
Published in Research and Reviews: A Journal of Toxicology · Vol. 5, Issue 1, 2015 · pp. 27–35 Read article
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Construction and Development of pSB111 Bar Plasmid Vector for Activation Tagging
Abstract: To get desired traits and to know the precise expression patterns of genes in the plant, Agrobacterium tumefaciens has been widely employed in the generation of transgenic plants using plasmid vectors. Many methods are come forward to establish the gene expression of unknown genes but in these techniques gene alteration isthe main drawback orsometimesit islethal to organisms also, to overcome these problems activator tag method developed to know the specific …
Published in Research & Reviews : Journal of Botany Read article
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Quantitative Structure-activity Relationship in Computer-aided Drug Design: A Review
Abstract: Quantitative Structure-Activity Relationship stands at the forefront of Computer-Aided Drug Design, providing a systematic framework for understanding the relationship between the chemical structure of molecules and their biological activity. The present review delves into the multifaceted realm of quantitative structure-activity relationship methodologies within the landscape of drug discovery. Through an exploration of diverse quantitative structure-activity relationship models, molecular descriptors, validation techniques, and recent advancements, the present article aims to elucidate …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 15, Issue 2, 2024 · pp. 55–63 Read article
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Selection and Mechanism of using active gas in GTAW Process – A review
Abstract: Gas tungsten arc welding process is known for its good quality welds. However, the lack of penetration of the process leads to low productivity. Many techniques have been implemented in the past to improve the joint penetration and thereby the productivity of GTAW process. In one of the technique, active gas like Carbon dioxide, Nitrogen or Oxygen is used in some proportion along with the inert gas. This addition of …
Published in Journal of Materials & Metallurgical Engineering · Vol. 8, Issue 1, 2018 · pp. 49–61 Read article