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835 articles for “no-effect concentration”
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Effect of catalyst and methanol on synthesis of methyl esters from used cooking oil
Abstract: Due to depletion in the fossil fuels and the increase of energy usage, the rapid depletion of fossil fuel is accelerated. Therefore, using renewable energy is a key solution to the problem of fossil fuel depletion. There are several resources of renewable energy like geothermal energy, solar energy, and biofuels. Biodiesel is a fatty acid alkyl ester made from renewable resources such as used cooking oil. The attractiveness of biodiesel …
Published in Journal of Catalyst & Catalysis · Vol. 8, Issue 1, 2021 · pp. 42–51 Read article
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Adsorption of Congo Red Dye in Aqueous Solution using Moringa oleifera Seed Powder
Abstract: The feasibility of using Moringa oleifera seed for the Congo red adsorption from aqueous solution has been investigated as a low cost and an eco-friendly adsorbent. Adsorption studies were conducted on a batch process, to study the effects of contact time, initial dye concentration and adsorbent dosage. Maximum colour removal was observed at higher adsorbent dosage. The present dye removal decreased from 95% to 81% as the dye concentration has …
Published in Journal of Catalyst & Catalysis · Vol. 8, Issue 1, 2021 · pp. 8–18 Read article
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Simulation Studies on Effect of Parameters on to the Matrix Acidizing
Abstract: Matrix acidizing entails introducing an acid solution into the formation at a pressure lower than the fracture pressure in order to dissolve some of the minerals present. The major objective of removing the formation damage close to the wellbore, therefore restoring the natural permeability and greatly rising the well productivity. This paper is a simulation study on matrix acidizing of both sandstone and carbonate reservoirs using MATLAB software. Design parameters …
Published in Journal of Petroleum Engineering & Technology · Vol. 11, Issue 2, 2021 · pp. 25–34 Read article
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Performance Evaluation of Library and Information Centers
Abstract: AbstractTraditionally, libraries have been evaluated in terms of input or available resources, such as number of volumes, number of staff members, size of facilities, and so on. More recently, there has been a vigorous movement toward evaluating libraries according to their output of performance. This latter evaluation focuses on what was accomplished with the library’s resources. Many of the performance measures developed thus far have concentrated on such factors as …
Published in Journal of Communication Engineering & Systems · Vol. 6, Issue 2, 2016 · pp. 5–8 Read article
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Comparative Evaluation of Autologous T-PRF Versus L-PRF Along with Freeze-dried Bone Allograft in the Management of Intra-bony Osseous Defect—A Report of Two Cases
Abstract: Periodontitis is a multifactorial inflammatory disease, characterized by formation of osseous deformities. Periodontal bone loss that presents with a vertical defect, is also known as an intra-bony defect. Different types of bone grafts may be employed to restore the compromised attachment structure. Freeze-dried bone allograft is a type of allograft which is osteoconductive in nature and acts as a scaffold. Platelet concentrates are biological products, filled with growth factors leading …
Published in Research and Reviews: A Journal of Dentistry · Vol. 14, Issue 2, 2023 · pp. 12–16 Read article
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Study of Object Oriented Systems: A Review
Abstract: AbstractThe motivation behind this paper is to concentrate a product item that requires effective measures to precisely screen the inward programming quality, for example, coupling and union, over the span of programming advancement life cycle. Programming measurements have been generally and effectively used to gauge such interior quality characteristics for protest situated programming frameworks. Coupling is characterized as a standout amongst the most fundamental subjective measures for measuring the execution …
Published in Recent Trends in Programming languages · Vol. 4, Issue 1, 2017 · pp. 16–19 Read article
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Effect of copper sulfate on the survival of guppy fish (Poecilia reticulata) fingerlings
Abstract: The contamination of aquatic ecosystems by industrial and agrochemicals is adversely impacting the natural fauna and flora. Regarding this issue, the present study was undertaken to investigate the toxic effects of copper sulfate (CuSO4) on fingerlings of Poecilia reticulata (Guppy fish). The fingerlings were exposed to different concentrations of CuSO4 over a period of 5 hours and the number of dead fish were counted at the end of each hour. …
Published in Research & Reviews : Journal of Ecology · Vol. 12, Issue 1, 2023 · pp. 26–32 Read article
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Estimation of Stratospheric Ozone Concentration over Southern Nigeria using Neural Network: Case Study of Lagos and Port Harcourt
Abstract: The neural network model was developed to estimate the stratospheric ozone concentrations along with some meteorological parameters. The neural network was trained using monthly maximum data provided by Nigerian Meteorological Agency (NIMET) and National Aeronautics and Space Administration (NASA) over a period of 43year (1970-2012) in the towns of Lagos and Port Harcourt Ozone concentration from the two stations was estimated using a surface meteorological variable as predictors for the …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 8, Issue 1, 2019 · pp. 4–9 Read article
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Effect of Nitrite on Oxygen Consumption and Ammonia Excretion of the Fresh Water Crab Paratelphusa jacquemontii (Rathbun)
Abstract: In aquatic ecosystem, nitrite concentrations are elevated by pollution with nitrogenous wastes and imbalances in bacterial nitrification and denitrification processes. Nitrite is transformed by nitrification to nitrate under aerobic condition. The effects of nitrite on physiology were investigated in the fresh water crab, Paratelphusa jacquemontii (carapace length 4–5 cm and weight 50–70 g) for 96 h. The crabs were exposed to sublethal concentration (1/10th and 1/20th of 96 h LC50) …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 4, Issue 1, 2013 · pp. 20–24 Read article
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Reduction of Short Channel Effects with the Variation of Poly Doping and Source/Drain Doping
Abstract: In this paper, the concentration of poly-silicon doping and source/drain doping has been varied to obtain the approximation the OFF state leakage current for N channel MOSFET. A lightly doped NMOS has been designed using 45 nm technology in ATHENA and simulated in ATLAS of SILVACO TCAD tool. After simulation results, it has been observed that as the poly-silicon doping and source drain doping concentrations are decreased, there is a …
Published in Journal of Semiconductor Devices and Circuits · Vol. 4, Issue 3, 2017 · pp. 35–42 Read article
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Development and Characterization of Antimicrobial Polymer Composites for Food Packaging Applications
Abstract: The increasing demand for sustainable and antimicrobial food packaging materials has led to extensive research in polymer-based composites. This study focuses on developing a polyethylene terephthalate-ethylene vinyl acetate (PET-EVA) composite reinforced with metal oxide nanoparticles (MONs), including Cu₂O, ZnO, and MgO₂. These nanoparticles were selected for their antimicrobial properties and ability to enhance the functional characteristics of the composite. Structural, chemical, mechanical, and barrier properties were extensively evaluated to determine …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 86–93 Read article
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Cinnamon Extract and Cinnamaldehyde Inhibit the Replication of T2 Bacteriophage in E. coli: Potential for Use in Antiviral and Anticancer Therapy
Abstract: An extract of cinnamon inhibits the growth of bacteria, viruses and cancer cells. At concentrations of 1, 2, 4, and 8 ml per 100 ml of Luria-Bertani broth, cinnamon extract had virtually no effect on the growth of E. coli. At the same concentrations, however, the yield of T2 bacteriophage was 98, 76, 64.5, and 61.8% of the control. Addition of cinnamon extract 37 min before infection produced a yield …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 9, Issue 3, 2019 · pp. 8–17 Read article
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Effect of Vase Solutions on the Postharvest Life of Cutrose Flowers
Abstract: Different vase solutions having different concentrations were prepared and applied to cut rose flowers. On the basis of their physical appearance, flower diameter, fresh weight, flower longevity, water balance, moisture, electrolyte and pH, effect of different treatments was analyzed. Different treatments include aluminium sulphate, cobalt nitrate and silver nitrate along with 2% sucrose solution. All vase solutions tested under current study are capable of extending postharvest vase life in cut …
Published in Research & Reviews : Journal of Botany · Vol. 7, Issue 3, 2018 · pp. 7–11 Read article
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Formulation, Evaluation, and Stability Studies of a Topical Clotrimazole and Zinc Oxide Suspension with Enhanced Skin Protective Properties
Abstract: Background: Clotrimazole is a well-known antifungal agent frequently used in the treatment of various superficial fungal infections, while Zinc Oxide is a widely accepted skin protectant with soothing, astringent, and antimicrobial properties. Combining these agents in a topical suspension offers a dual therapeutic approach, enhancing both antifungal efficacy and skin protection. Objective: The objective of this study was to formulate, evaluate, and conduct stability studies on topical suspensions containing Clotrimazole …
Published in Research & Reviews: A Journal of Drug Formulation, Development and Production · Vol. 12, Issue 3, 2025 · pp. 22–31 Read article
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Efficacy of Dill, Teak and Arjun Extract Against Sheath Blight of Rice Caused by Rhizoctonia solani
Abstract: AbstractSince many decades practices have been followed to manage sheath blight disease of rice through use of synthetic fungicides mostly due to nonavailability of suitable and effective substitute. The present research was aimed to identify the potentiality or efficacy of natural fungicides obtained from selected plants as an ecofriendly alternative in the management of the disease. In the presented experiment, three plant extracts that is, Teak (Terminalia arjuna Roxb.)-chloroform, Dill …
Published in Research & Reviews : Journal of Agricultural Science and Technology · Vol. 8, Issue 3, 2019 · pp. 27–34 Read article
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Green synthesis of zinc oxide and copper oxide nanoparticles and their effect against wilt fungus, Fusarium udum.
Abstract: Nowadays nanoparticles (NPs) come out as powerful tools to enhance crop production and protection. Biosynthesis of NPs has a vital role and an alternate to chemical and physical methods because it is simple, easy, eco-friendly, and free from chemical hazards. Zinc oxide (ZnO) and copper oxide (CuO) NPs were synthesized from leaves extract of Lantana camara (L.) and Nerium oleander (L.) and characterized by using several techniques such as transmission …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 13, Issue 3, 2023 · pp. 1–5 Read article
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Dioxin Sources, Types, Toxicity, and Removal Technologies: A Review
Abstract: This review provides a comprehensive investigation of dioxin, an endocrine-disrupting compound, and its impacts on environment and human health. Dioxin have antagonistic effects on hormones. It is pivotal to identify the origin of dioxin exposure for the well-being of environment and human health. Hence, the sources of dioxin, its dispersion, concentrations in air, water and soil medias, and health effects are discussed in detail. Endocrine disrupting compounds are categorized into …
Published in Journal of Industrial Safety Engineering · Vol. 11, Issue 1, 2024 · pp. 11–19 Read article
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The New Technology of Phytoplankton’s Concentration from Lake “Green Water” for Production of the High-quality Biofuel Having Positive Impact on the Environment
Abstract: The “green water” formation in the stagnant zones of fresh lakes occurs due to the generation and enhanced reproduction of phytoplankton under the sun influence. Due to non-influx of fresh water, phytoplankton dies, releasing hydrogen sulfide, and water becomes unusable and threatens the ecological situation of the lake. In this regard, the development of the concentration of phytoplankton from “green water” purification is an urgent task associated with positive impact …
Published in Trends in Electrical Engineering · Vol. 9, Issue 2, 2019 · pp. 27–34 Read article
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Effect of Different Incubation Times on the Effectiveness of Oyster Mushrooms Towards the Growth of Some Fungal Isolates
Abstract: The study was conducted by preparing the filtrate of the oyster mushroom Pleurotus ostreatus, where the effectiveness of the fungal filtrate prepared from growing the fungus in the liquid Potato Dextrose Broth (PDB) medium was selected for two different periods (14, 28 days) in inhibiting some types of fungi (Aspergillus Spp : Aspergillus niger ،Aspergillus flavus, Aspergillus terreus) and some types of fungi (Candida Spp: Candida albicans, Candida tropicalis, Candida …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 15, Issue 2, 2025 · pp. 1–8 Read article
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Utilization of the Brewer’s Spent Grain for Lactic acid production: Acid hydrolysis and submerged fermentation
Abstract: The production of Lactic acid from Brewery Spent Grain using Lactobacillus plantarum ATCC 8014. was carried out in this study. Box Behnken Design (BBD) (Design expert® 7 software) was used to investigate the effect of temperature, reaction time and acid concentration during the hydrolysis. Fermentation of the hydrolyzate was performed at 35 °C, pH 5.0-5.5 and 200 rpm for 72 h.
Published in Journal of Catalyst & Catalysis · Vol. 7, Issue 1, 2020 · pp. 1–5 Read article