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1952 articles for “char”
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Molecular Characterization of Circulating Rota Viral Strain causing infantile diarrhoea in Tripura, North East India
Abstract: Introduction: North Eastern India is geographically distinct from rest of India and the trend of Rota viral diarrhoea among children below 5 years of age group is not well studied yet. The Government of India introduced the oral rotavirus vaccine (ROTAVAC) in 2016 as part of the Universal Immunization Programme in different parts of India. Objective: (1). To determine the proportion of circulating Rotavirus strains causing acute viral gastroenteritis (AGE) …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 11, Issue 3, 2021 · pp. 6–13 Read article
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Characterization of Fracture Toughness of As-Cast Si-Mo- Cr Ductile Cast Iron
Abstract: In the present study, a Si-Mo-Cr ductile cast iron is developed by taking three different combinations, viz. Heat-1, Heat-2 and Heat-3 of the selective amount of silicon, molybdenum, copper and chromium. For fracture toughness characterization, the specimens are prepared from the samples in "as-cast" conditions. The value of static fracture toughness obtained from the experiments for the specimen of Heat-2 with a fatigue pre-crack is 54.49 MPa√ , whereas, for …
Published in Journal of Polymer & Composites Read article
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Synthesis, Characterization and Antibacterial Activity of Mono- and Binuclear Co(II) and Cr(III) Mixed-Ligand Complexes Derived from α-Amino Acid and 1,10- Phenanthroline with 1,3-Diaminopropan as a Spacer
Abstract: Mixed-ligand complexes of Co(II) and Cr(III) ions were synthesized from the reaction of metals chloride salts with α-amino acid (H2L1) as a primary ligand and 1,10-phenanthroline (L2) as secondary ligand. The ligand 2-(benzo[d]thiazol-2-ylamino)-2-(2-hydroxynaphthalen-1-yl) acetic acid (H2L1) has been synthesized from the condensation reaction of inobenzothiazol with 2-hydroxy-1-naphthaldehyde in the presence of HCN as three components–one pot reaction. H2L1 considered as a tridentate chelater of ONO-coordination binding type toward the metals, …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 107–120 Read article
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Development and Evaluation of a Novel Polyaniline/Polyvinyl Alcohol/Silver Nanocomposite for Antibacterial Applications: Synthesis and Characterization
Abstract: A novel nanocomposite made up of polyaniline, polyvinyl alcohol, and silver (PAL/PVA/Ag) was synthesized using the reduction of chemical technique in this study. Aniline was polymerized in situ with ammonium persulfate to create polyaniline (PAL), while Ag+ ions were employed to make an nanoparticle of Ag colloidal solution. The combination of Ag nanoparticles with the PAL/PVA composite resulted in the development of a new nanocomposite. Scanning electron microscopy (SEM) and …
Published in Journal of Polymer & Composites · Vol. 11, Issue 3, 2023 · pp. 39–47 Read article
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Corrosion Characterisation of Low Alloy CrMoV Steel Before and After Cryogenic Heat Therapy
Abstract: Low alloy CrMoV steel is used in Turbine wheels, Distance pieces, Compressor aft shafts etc of Gas Turbines. Cryogenic heat treatment was used to examine the effects on the corrosion resistance of low alloy CrMoV steel. In order to eliminate residual stresses and boost wear resistance in steels and other metal alloys, cryogenic heat treatment (CHT) employs cryogenic temperatures (i.e., below - 190°C) to treat work parts. Cryogenic treatment is …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 63–73 Read article
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Experimental Investigation of Aerodynamic Characteristics of Dimpled 3D Aircraft Wing
Abstract: There is a strong demand for innovative designs, optimization of the aircraft components for their parts with respect to design, etc. One such innovation is by introduction of dimples in the wing of the aircraft. To study the effect of geometry modification of the wing, the present work compares the aerodynamic efficiency, ratio of lift to drag coefficients, along with different aerodynamic characteristics of an Inward and outward circular dimpled …
Published in International Journal of Mechanical Dynamics and Systems Analysis · Vol. 1, Issue 1, 2023 · pp. 11–22 Read article
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“DEVELOPMENT AND CHARACTERIZATION OF PHYTOSOMES FOR THE TREATMENT OF ANTI-CANCER ACTIVITY BY USING THE Spirulina (Arthospira Plantesis) EXTRACT”
Abstract: This study aims to investigate and evaluate spirulina's anticancer properties.The current research is centred on obtaining a Spirulina-containing drug. The goal is to design and create Phytosomes, characterizing them based on relevant and crucial parameters. The process of solvent evaporation was utilized in the creation of Phytosomes. Various parameters such as zeta potential, particle size, infra-red spectral analysis, % drug content, encapsulation efficiency, and % drug release (% DR) were …
Published in International Journal of Antibiotics · Vol. 1, Issue 1, 2024 · pp. 10–22 Read article
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Evaluation of Fly Ash/ZrO2 Reinforced AZ91E Hybrid Composites Based on Wear and Friction Characteristics
Abstract: In the current study the compo-casting Al alloy MMCs' wear resistance was examined under a variety of abrasive circumstances, including coefficient friction, wear rate and it’s sliding distance. The AZ91E matrix composite was made by the liquid metallurgy process and reinforced with aluminum plated zirconium dioxide (ZrO2) particles. Designers examined the characteristics of matrix alloys along with created composites. friction and wear from dry sliding experiments had been performed on …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 324–338 Read article
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Formation, Characterization and Microscopic Study of Four- and Five-membered Ring
Abstract: Types of organic compounds are famous for many industrial and medical applications, including azo compounds, one of the largest groups involved in the manufacture of various organic compounds. For example, they are considered as initiators of free radicals in the polymerization reactions of alkenes used in the manufacture of plastics. Most of cyclic compounds have nano properties which make this type of compound important in organic field. It is also …
Published in OmniScience: A Multi-disciplinary Journal · Vol. 14, Issue 1, 2024 · pp. 1–15 Read article
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Real Time Characterization of BA.2.86 and Its Variant (JN.1) in Senegal Using Midnight Protocol
Abstract: During the week ending August 13th, 2023, the most prevalent variant of interest (VOI), uploaded to GISAID, was the BA.2.86 variant. This SARS-CoV-2 Omicron lineage was described as the first phylogenetically distinct from the currently circulating SARS-CoV-2 Omicron XBB lineages, including EG.5.1 and HK.3. Compared to the XBB and BA.2 lineages, the BA.2.86 possesses more than 30 mutations in the Spike (S) protein, suggesting a significant potential for immune evasion. …
Published in International Journal of Vaccines · Vol. 1, Issue 2, 2024 · pp. 16–21 Read article
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Geopolymer Concrete with Cenosphere as Fine Aggregate: A Material Characterisation
Abstract: Geopolymer concrete (GPC) is regarded as the successor to traditional concrete as it eliminates the requirement for conventional Portland cement during its manufacturing process, hence decreasing CO2 emissions. This study employed Cenosphere, which are lightweight fine materials, to partially substitute the volume of sand in GPC. Cenosphere was utilized in proportions of 20%, 40%, 60%, and 100%. This experiment examined the fresh and hardened characteristics, durability against freezing and thawing, …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 143–151 Read article
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Mechanical Characteristics of Naturally Woven Coconut Sheath/Short Sisal Fiber Reinforced Polymer Hybrid Composites
Abstract: This study presents the outcomes of an experimental investigation focusing on the tensile, flexural, impact and water absorption properties of unsaturated polyester resin reinforced with naturally woven coconut sheath and short sisal fibers. Sisal fiber, characterized by its abundance, affordability, degradability, and robust strength, serves as a compelling reinforcement. The naturally woven coconut sheath fibers, discreetly found in the hidden sections of coconut branches, offer an inexpensive, biodegradable option with …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 34–44 Read article
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Impact of Tool rotating speeds on the Mechanical characteristics of dissimilar friction stir-welded AZ80A-Mg – AA6061-Al joints
Abstract: In this investigation, separate AA6061-Al and AZ80A-Mg alloy plates were effectively joined through stir welding with friction. We looked closely at the weld joints' characteristics, especially their mechanical aspects. In the experiment, here were multiple tool rotating rates (rpm) of 800, 1000, 1200, 1400, and 1600 used. A cylindrical pin-equipped tool featuring a tapered profile was utilized, inserted into the AA6061 alloy plate is offset by 0.5 mm, while maintaining …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 161–168 Read article
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Isolation, Purification and Characterization of Antimicrobial peptide produced by Saccharomyces boulardii №6569
Abstract: Object: To identify microorganisms that are newly isolated biologically and microbiologically and determine their characteristics by purifying AMP produced by yeast. Methods: We measured the antibacterial activity of AMP using microliquid dilution and turbidity methods and purified them using membrane filtration and gel filtration methods. The molecular weight of AMP produced by Saccharomyces boulardii was measured using Acquity UPLC SQD-2 and MS. Results: We confirmed that yeast-№18, identified biologically and …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 14, Issue 1, 2024 · pp. 7–18 Read article
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Influence of Agitation and Static Cultivation on Physicochemical Characteristics of Bacterial Cellulose Produced by Gluconacetobacter liquefaciens MTCC 3135
Abstract: Bacterial cellulose (BC) a with applications spanning biomedical, food, paper, electronics, and diverse industrial processes. Its unique properties include high purity, biocompatibility, and flexibility. BC is a versatile natural biopolymeric material, secreted by certain acetic acid bacteria. BC has numerous benefits over plant cellulose due to distinctive features, e.g., higher polymerization degree and purity, superior crystalline structure, water retention, biocompatibility, and biodegradability, which make BC a valuable material in creating …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 14, Issue 2, 2024 · pp. 1–11 Read article
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Investigation on the mechanical characteristics and productivity of GGBS based geopolymer mortars
Abstract: It has been known for decades that geopolymer will significantly replace cement's function in construction industry. Geopolymer has low creep and shrinkage and a peak compressive strength. That is as per a recent study, geopolymer mortar is made by Fly ash and GGBS. The composition includes (100-60%) GGBS with a 10% substitution of fly ash. Alkali activators used in the research are sodium hydroxide (NaOH) and sodium silicate (Na2SiO3). In …
Published in Journal of Polymer & Composites · Vol. 12, Issue 2, 2024 · pp. 253–264 Read article
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Solar Based Electric Vehicle Charging
Abstract: The "Solar-Based Wireless Power Transmission Highways" project aims to revolutionize the way we generate and distribute electrical energy on highways. This innovative system harnesses solar energy through strategically placed solar panels along the highway, converting it into electricity. The electricity is then wirelessly transmitted to electric vehicles (EVs) passing overhead, enabling them to charge without the need for physical connections. This technology not only addresses the growing demand for sustainable …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 11, Issue 1, 2024 · pp. 27–32 Read article
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Formulation of Load Chart Table for Precast Prestressed Double Tee Slab
Abstract: The increasing demand for office buildings, shopping malls, industrial facilities, and residential structures underscores the necessity for rapid construction systems. Among these, precast concrete structures have gained traction in the construction industry, with beam-to-column/wall connections playing a crucial role. Precast prestressed T-slabs, primarily used as floor slab elements, offer advantages such as longer spans (up to 12 m to 15 m) and simplified construction processes due to their one-way slab …
Published in Journal of Structural Engineering and Management · Vol. 11, Issue 1, 2024 · pp. 42–53 Read article
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Production Methods, Mechanical Characteristics, and Industrial Uses for Metal Matrix Composites
Abstract: Advanced light-weight components known as composites from metal matrix are made of an element the alloy matrix with a second phase incorporated and dispersed throughout to improve certain properties. The composite's property varies according to the remaining phase's size, shape, and quantity. Because of its unique combination of ceramic and metallic features, it has better mechanical and physical qualities. These materials belong to a new breed of engineered materials that …
Published in Trends in Mechanical Engineering & Technology · Vol. 14, Issue 1, 2024 · pp. 1–5 Read article
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Fabrication and drilling characterization of Hemp & Grewia-Optiva hybrid composite and comparison with ANN model
Abstract: In recent days the use of natural fibers has increased over synthetic fibers due to various advantages. The alkali treatment for these natural fibers further improves the adhesion between fiber and matrix and greatly enhances the mechanical properties of the composite. The present study involves the fabrication of a hybrid composite using the alkali-treated (5% NaOH concentration) natural fibers – Hemp &Grewia-optiva as reinforcement material and epoxy as a matrix …
Published in Journal of Polymer & Composites · Vol. 12, Issue 3, 2024 · pp. 138–146 Read article