Search
1013 articles for “characterization”
-
Synthesis , Characterization and Biological Activity of Schiff base Derived from Sulphanilamide and Salicylaldehyde and Its Metal Complexes
Abstract: ABSTRACT : Schiff bases are important intermediates for the synthesis of various bioactive compounds. However, various studies have shown that Schiff bases derived from biologically active ingredients present in medicinal plants are more effective in biological and medicinal activity than in its pure form. In this paper K(I), Ni (II), Mg (II), Cd (II) and Pb(II) Complexes were synthesized from Schiff bases derived from sulphanilamide and Salicylaldehyde. The ligand and …
Published in International Journal of Composite Materials and Matrices · Vol. 5, Issue 1, 2019 · pp. 21–29 Read article
-
Characterization of the Impact Strength in Cryogenic Treatment of TIG Welded Nickel-based Superalloy
Abstract: The TIG welding of the IN617 heat and oxidation resistant has been precisely controlled through welding parameters, while γ'-Ni3(Al, Ti) phases predominantly controlled solution strengthening, and precipitation strengthening and carbides in γ matrix, as well as γ' precipitate’s shearing mechanism is prominent to enhance strength of superalloys. The high hardness has been preserved owing to strengthening major elements such as Cr, Co, and Mo etc., and the well coherency maintain …
Published in International Journal of Composite Materials and Matrices · Vol. 9, Issue 2, 2023 · pp. 1–12 Read article
-
Deposition and characterization of poly(o-anisidine)/TiO2Nanocomposite for gas sensing application
Abstract: The Poly(o-anisidine) (POA) and Titanium dioxide POA (POA/TiO2 ) composite thin film based for gas sensing application are synthesized. Pure POA and POA/TiO2 composites with 20wt% of TiO2 were synthesized by chemical oxidative polymerization of o-anisidine using ammonium persulfate in acidic medium at 0-50C. Thin films of POA and POA/TiO2 composites were deposited on glass plate by dip coating method to prepare the chemiresistor sensor. The structural and optical properties …
Published in International Journal of Polymer Science and Engineering · Vol. 1, Issue 1-2, 2015 Read article
-
Isolation and Characterization of Tamarind Seed Polysaccharides Being Used as a Biopolymer in Modern Drug Delivery System
Abstract: Tamarind seed polysaccharide (TSP) obtained from the seed of Tamarindus indica tree. It possesses different properties like high viscosity, broad pH tolerance, biocompatibility, mucoadhesive nature. It is used as thickener, stabilizer, gelling agent in food and pharmaceutical industries and Gums are widely used natural materials for conventional and novel dosage forms. The objective of present investigation was to search for a cheap and effective natural polymer that can be used …
Published in International Journal of Polymer Science and Engineering · Vol. 2, Issue 1, 2016 · pp. 1–6 Read article
-
Synthesis and Characterization of Poly(etherdiphenylene terephthalamide)-Metal Complexes in Heterogeneous Medium
Abstract: Condensation of terephthalic acid and 4,4ʹ-diaminodiphenyl ether resulted in aminoterminated oligomeric poly(etherdiphenylene terephthalamide) (PODTA) using phosphorylation technique. Schiff base complexes of this polyamide were synthesized with salicylaldehyde and 2-hydroxy-1-naphthaldehyde complexes of Co(II),Ni(II) and Cu(II). All the synthesized polyamide as well as Schiff’s base complexes were characterized by elemental analysis, IR spectroscopy and magnetic susceptibility measurements. Thermal stabilities of ligand and its various complexes were compared by thermogravimetric analysis. While, Co(II) …
Published in International Journal of Polymer Science and Engineering · Vol. 2, Issue 1, 2016 · pp. 13–19 Read article
-
SYNTHESIS AND CHARACTERISATION OF NATURAL FIBRE REINFORCED EPOXY COMPOSITES BASED ON SESAME OIL
Abstract: ABSTRACT Epoxy sheet and its composites were obtained by epoxidised resin and coir fibres respectively. Epoxidisedresin were prepared by condensing sesame oil using hydrogen peroxide and glacial acetic acid as catalyst. The resin was characterisedby spectral studies such as FT-IR and Solvent Absorptivity Percentage of Epoxy Resin and its Composites.The epoxy composites have higher solvent absorptivity percentage in the solvents when compared to that of epoxy resin. The epoxy composites …
Published in International Journal of Polymer Science and Engineering · Vol. 5, Issue 1, 2019 · pp. 38–40 Read article
-
Syenthesis characterization and biological activities of Schiff base metal complexes of Zr (II) Ba(II), Cu(II), Sr(II) and Th (II) derived from sulfa pyridine
Abstract: Abstract : The Schiff base ligand was prepared by sulfapyridine with salicylaldehyde Zr(II), Ba(II), Co(II), Sr(II) and Th (II) complexes of above ligand was synthesized as well. The synthesized complexes have been characterized by powder XRD and SEM. The anti microbial activity of synthesized ligand ant its complexes have been tested for their antibacterial activity against bacterial species, such as Bacillus subtilis, staphylococcus aureus, Pseudomonas, aeruginosa, Enterobacter aerogenes, E-coli and …
Published in International Journal of Polymer Science and Engineering · Vol. 5, Issue 1, 2019 · pp. 30–37 Read article
-
Experimental and Finite-Element Analysis of Tee Joint’s Stiffness Characteristics of A3003 Honeycomb Core Sandwich Panels
Abstract: Aluminum honeycomb is used as a core material for sandwich panels of floors, roofs, doors, partitions, working surfaces for automatic machines, and for all products which require high degree of flatness and optimal stiffness-to-weight ratio. Invariably, in the fabrication of the above panels, butt and tee joints are encountered so as to get the required complex shapes. In this paper, various edging and configuration details that have been used to …
Published in International Journal of Mechanics and Design · Vol. 4, Issue 2, 2018 · pp. 21–29 Read article
-
A Theoretical Investigation of Characteristics of Diesel Engine with Coil Cooler System
Abstract: Heat exchangers are very essential devices for the industrial applications such as power plant industries, refrigeration and air conditioning systems; and automobiles systems etc. One of the sources to produce electric power is diesel engine with generator called diesel generator. Diesel is a working fluid in this system. In general diesel generators are equipped with radiators or cooling tower systems for cooling the system. For low capacity diesel generators such …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 1, Issue 2, 2015 · pp. 16–25 Read article
-
Synthesis and Characterization of Biodiesel from Animal Fat
Abstract: Biodiesel, an alternate and ecologically acceptable substitute for the conventional fuel, is usually produced from a wide range of edible vegetable oils, which are normally used for human consumption and whose prices are expected to increase in future. In this regard, reliable and low-cost raw materials have increasingly drawn interest for biodiesel production, such as by-products of the meat processing industries or waste animal fats. In present work biodiesel production …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 5, Issue 2, 2019 · pp. 45–54 Read article
-
STUDY DIESEL-RK APPLICATIONS IN THE COMPUTATION AND ANALYSIS OF TECHNOLOGICAL AND SOCIOECONOMIC CHARACTERISTICS OF DIESEL ENGINES USING HEAVY FUELS IN ORDER TO TEST WITH DIFFERENT PISTON BOWL DESIGNS
Abstract: The influence of different piston bowls on the Diesel-RK will be demonstrated in this test as the engine is the heart of vehicles for existence like human heart needed for survival. The piston bowl shows a significant influence on the load stratification in the transition area. The compression ratio shows a trade-off of NOx reduction with unburned hydrocarbons and carbon monoxide emissions. In today's society, people have attempted to employ …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 8, Issue 2, 2022 · pp. 8–18 Read article
-
Diesel Engine Combustion and Emission Characteristics Study, Taking into Account the Potential of Biogas Substitution for the Purpose of Enhancing Environmental Cleanliness and Promoting Health
Abstract: Necessity for alternative fuels arises from the escalating energy requirements and the detrimental effects of fossil fuel emissions on environmental well-being. Alternative fuels have been extensively researched to improve energy efficiency. A study examines how alternative fuel affects compression ignition (CI) engine performance, pollution, and combustion. Biogas is investigated as a diesel engine fuel substitute in this study using computational fluid dynamics (CFD). Upon doing a thorough examination of the …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 9, Issue 1, 2023 · pp. 24–39 Read article
-
Level of Job Satisfaction and General Well-Being of Nurses in Relation to Their Personality Characteristics
Abstract: The hospital environment is a never ending challenge for its medical staff. Nursing care involves number of activities. It requires a stable mind set for them in order to meet the challenges effectively and diligently. Personality characteristics had a significant impact on the level of job satisfaction and general well-being of nurses working in the hospitals.
Published in International Journal of Nursing Critical Care · Vol. 3, Issue 1, 2017 · pp. 15–22 Read article
-
Characterization of Auxetic Metamaterials: Experimental and Finite Element Study of Re-Entrant Bowtie and Conventional Honeycomb Structures Fabricated by FDM Using PLA, PETG, and TPU
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 12, Issue 2, 2026 Read article
-
Synthesis, Characterization, Antibacterial Study and Study of Bio Properties for New Analytical Reagents
Abstract: Due to the widespread pollution of heavy metals in water and environmental samples, the pollution levels have increased. Therefore, researchers have begun working on various environmental solutions to improve the levels of these elements in environmental samples. One such solution is the preparation of analytical reagents as coordination agents and ligands to shield the elements from water and soil, thereby reducing pollution levels. In this study, new analytical reagents were …
Published in International Journal of Environmental Chemistry · Vol. 12, Issue 1, 2026 · pp. 1–11 Read article
-
Synthesis, Characterization, Chromatographic and Antifungal Evaluation of New Chalcone-Azo Ligand and Complexes
Abstract: Ligand chemistry is fundamental to coordination chemistry, complex chemistry, analytical reagents, andthe treatment of heavy ion pollutants. Recently, ligand complexes have been used in biologicalapplications such as radiation and the treatment of certain types of tumors. Researchers have expandedtheir studies to include complexes such as nanomaterials and drug carriers, demonstrating theireffectiveness through their nanoscale properties. It is worth noting that we chose indole and linked it to achalcone group to …
Published in International Journal of Analytical and Applied Chemistry · Vol. 12, Issue 1, 2026 · pp. 10–19 Read article
-
Microgrid Sources and Power Electronic Interfaces: A ComprehensiveReview on Source Characteristics, Converter Design, Protection, Power Quality, and Energy Storage Integration
Abstract: Microgrids have become a prospective technology in improving energy reliability, sustainability, and resilience through a combination of a variety of distributed energy sources, sophisticated power electronic interface, and energy storage systems. In this paper, there is an in-depth discussion of the source of microgrids, its fundamental features, and how it works and the criteria that may be used in selecting the source of microgrids depending on the factors involved and …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 11, Issue 2, 2025 · pp. 30–61 Read article
-
Chemical Behavior and Characteristics as Related to Group V Elements in the Periodic Table and Their Electron Structures
Abstract: This research explores the interplay between electron structure and chemical behavior in Group V elements: nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). Nitrogen’s triple covalent bond relates to its stability and biological significance. Phosphorus’s versatile compounds benefit agriculture. Arsenic’s metalloid properties impact electronics. Antimony’s flame-retardant use highlights its versatility. Bismuth’s low toxicity and diamagnetism make it valuable in medicine and research. These elements showcase how electron …
Published in International Journal of Chemical Engineering and Processing · Vol. 10, Issue 2, 2024 · pp. 5–14 Read article
-
Optimizing Characteristics of Ferro-Geopolymer Composites for Structural Applications
Abstract: Abstract This study focuses on developing an optimal mix for geopolymer mortar (GPM) using varying molarities of NaOH solution and different binder-to-aggregate ratios. The primary objective was to determine the mix that yields the highest compressive strength. GPM cubes were prepared and subjected to two curing methods – oven curing and steam curing. Compressive strength tests were conducted at 3, 7, and 28 days. The results show that the compressive …
Published in International Journal of Concrete Technology · Vol. 10, Issue 2, 2024 · pp. 17–22 Read article
-
Synthesis, Crystal Growth and Characterization of Bismuth Doped Potassium Hydrogen Phthalate Crystal (Khp): A Nlo Material
Abstract: To create single crystals using the Slow Evaporation Solution Growth Technique (SEST), equimolar composition of the transition metal (Bi) as Bismuth nitrate is added to Potassium Hydrogen Phthalate (KHP) (1:1) at ambient temperature. The following analysis is then performed on the single crystals that have formed. Equimolar doping-induced structural distortion in the crystals is confirmed by the FT-IR Spectra. The TGDTA study reveals the purity of the material and no …
Published in International Journal of Composite Materials and Matrices · Vol. 10, Issue 1, 2024 · pp. 19–27 Read article