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181 articles for “ION”
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Prediction of Ionic Polarization of Na+ and Cl- Ions in a Lattice Upon the Influence of Displacement
Abstract: This research demonstrates an interest because of the contribution to examine the importance on the characteristics of the certain behaviors of dielectric material, which do not give rise to an active current that leads to ionic polarization, and this attribute to the fact that when some of the atoms of the molecule have an excess positive or negative charge, an electric field will tend to shift positive ions relative to …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 4, Issue 1, 2018 · pp. 24–30 Read article
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Consequence of Hall and Ion-slip Currents on Boundary Layer Flow with Power-law Deviation Wall Temperature
Abstract: MHD boundary layer flow in permeable medium along vertical plate with power-law deviation wall temperature in a gyratory system for the effects of Hall and ion-slip currents have investigated numerically. The ordinary differential equations are obtained from considered system of partial differential equations using usual transform. The Nachtsheim- Swigert shooting iteration method along with sixth order Runge-Kutta integration technique has employed to solve the non-dimensional system of ordinary differential equations. …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 6, Issue 2, 2020 · pp. 10–20 Read article
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Theoretical Insights Into Structure, Electronic Properties, and Ion-pair Interactions In Organopalladium Salts [Pd(p-XC6H3CHMeNH2) (tmeda)] [BF4] AND [Pd(p-XC6H3CHMeNH2) (tmeda)] [PF6] (X = H, F, Me)
Abstract: The geometries of organopalladium salts [Pd(p-XC6H3CHMeNH2) (tmeda)] [BF4] and [Pd(pXC6H3CHMeNH2) (tmeda)] [PF6] (X = H, F, Me) (I-VI) have been optimized using BP86 and TPSS density functional at dispersion corrected DFT-D3(BJ) method. The optimized geometries of the salt [Pd(C6H4CHMeNH2) (tmeda)] [BF4] using TPSS functional in methanol slvent is in good agreement with available experimental data. The N1-Ha bond distances are longer than the N1-Hb bonds. The counterion strongly affects the …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 9, Issue 1, 2023 · pp. 11–21 Read article
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Synthesis of Brominated Poly (Isobutylene-co-Isoprene) Based Ionomers and Its Applications
Abstract: Reactive bromobutyl rubber and its modification have been studied in detail. These reactive bromobutyl rubber was converted to ammonium and phosphonium functionalized bromobutyl rubber using triphenyl phosphine (PPh3) and 4-Dimethylaminopyridine (4-DMAP). Mechanical properties of synthesized ionomers are found comparative with butyl rubber. Pharma stopper was made from synthesized phosphonium ionomer that may be useful for pharma industries due to its self-healing characteristics which can help to preserve the properties of …
Published in International Journal of Composite Materials and Matrices · Vol. 11, Issue 1, 2025 · pp. 47–55 Read article
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Employing Nanotechnology, Nanobiosensors, and IoNT to Advance Modern Healthcare: Taxonomies, Applications, and Issues
Abstract: The industry most likely to benefit from nanotechnology applications is the healthcare sector. Rapid advancements in the fields of nanotechnology, nanobiosensors, and IoNT (Internet of Nano-Things) possess the capacity to change a number of industries and enhance our daily lives. Together, these three technologies produce a strong and effective system with a wide range of application possibilities. The use of nanotechnology, nanobiosensors, and Internet of Nano-Things (IoNT) has greatly advanced …
Published in International Journal of Composite and Constituent Materials · Vol. 9, Issue 2, 2023 · pp. 1–9 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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Thermal Management Of Cylindrical Lithium-Ion Battery Using A Wavy Tube
Abstract: To maintain a proper temperature range and eliminate local temperature disparities, thermal management is required for lithium-ion batteries in electric vehicles. A wavy tube is presented for a liquid cooling cylindrical lithium-ion battery module in this research. On the suggested battery module, three-dimensional transient simulations were run, and numerical improvements were made by changing the wavy contact angle of the wavy tube. The heat dissipation efficiency and temperature field homogeneity …
Published in International Journal of Manufacturing and Materials Processing · Vol. 9, Issue 2, 2023 · pp. 10–22 Read article
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Study and Simulation of Radiation Effects on MOS Structures through High Energy Ions
Abstract: MOS structures exposed to 305 MeV Kr and 710 MeV Bi ions irradiation with fluences of 109 cm 2 and 1010 cm 2 were investigated by capacitance measuring methods (C–V, C–t), completed by quasistatic low-frequency C–V and DLTS measurements. The irradiated MOS structures were functional in spite of a high density of radiation defects. The electric activity of the defects brought a sharp decrease in the generation parameters tr and …
Published in International Journal of Applied Nanotechnology · Vol. 3, Issue 2, 2017 · pp. 40–46 Read article
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Theoretical Investigation of the Interactions between Cytochrome C and Some Heavy Metal Ions: A Biophysical Analysis
Abstract: Cytochrome c is located in mitochondria and has an important role in ATP synthesis. In addition to this, this molecule plays an important role in the conversion to water molecule of molecular oxygen. Using chemical equalization principles about chemical hardness and electronegativity concepts, the power of the interactions between chemical compounds, metals and ligands. In the present study, we theoretically analyzed electron transfer mechanisms and the power of the interactions …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 5, Issue 2, 2019 · pp. 27–31 Read article
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A New Multidentate Fluorescent Chemosensor for metal ions: Synthesis and Fluorescence Response
Abstract: We report the synthesis and the fluorescence response to metal ions of a multidentate pyridyl-based ligand in MeCN/H2O (3/7) solution. The ligand was synthesided via overnight refluxing of a ethanolic mixture of 2,6-diamino pyridine and di(pyridine-2-yl)methanone. studies reveal the ligand display sensing response ability in the presence of certain metal ions. It display significant fluorescent quenching in the presence of Ni2+, Co2+, Zn2+ and Cd2+, with remarkable fluorescence “turn-off” response …
Published in International Journal of Environmental Chemistry · Vol. 5, Issue 1, 2019 · pp. 10–17 Read article
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Tetrahydro-dibenzo[a,d][7]annulene-5,11-dihydrazone and Magnesium oxide Used to Control the Corrosion of Aluminium in Chloride ions Environment
Abstract: Chloride ions interact with aluminium in marine atmosphere to form corrosion cell. Due to this corrosion reaction occurs on their surface, aluminium is oxidized into Al3+. The corrosion reaction accelerates deterioration in metal and it produces galvanic, pitting, stress, crevice, intergranular corrosion. Chloride ions decrease internal and external strength of aluminium metal. It is a very important metal so used in different appliances for e.g. road, water, air transports, housing, …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 6, Issue 2, 2020 · pp. 35–48 Read article
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Development of a Ray-tracing Program and its Application in Characterizing the Range of HF Radio Propagation in the Equatorial Ionosphere
Abstract: A ray tracing program which is an algorithm that can be used to describe the complex nature of the ionosphere has been developed using locally available resources. The International Reference Ionosphere (IRI) Ionospheric Model were incorporated into the program for evaluating electron density values. Complex refractive indices of the ionosphere were generated using Appletone-Hartree formula with no collision and magnetic field effects. The program applies Snell’s law of refraction in …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 6, Issue 2, 2020 · pp. 1–11 Read article
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Synthesis of Bio-Polymeric Network and Developing UV-Visible Spectrophotometric Method for Heavy Metal Ions Removal from Polluted Water by Apple Residues
Abstract: Biosorption is potentially an attractive technology for removing heavy metals from wastewater and discharging heavy metals into an aquatic ecosystem has become a matter of concern all over the globe since the last century. Pollutants from various industrial operations disturb the aquatic systems and heavy metals present in them cause serious human diseases. Previously established methods, such as chemical precipitation, ion exchange, membrane separation, and adsorption are generally costly due …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 11, Issue 1, 2025 · pp. 1–9 Read article
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Studies on Zirconium(IV) Telluroiodate: A New Heteropolyacid Based Inorganic Ion Exchange Material
Abstract: Zirconium (IV) telluroiodate has been synthesized as a new inorganic cation exchanger by adding a mixture of aqueous solution of 0.1 M potassium iodate and 0.1 M sodium tellurite to aqueous solution of 0.1 M zirconium (IV) oxychloride under varying mixing ratios at pH 1. Its ion exchange capacity for Na+ was found to be 1.85 meqg1 of dry exchanger. The material has been characterized on the basis of chemical …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 2, Issue 1, 2016 Read article
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Ionic liquids: as a solvent for electrodeposition of metals and energy conversions
Abstract: Over the past decade, Ionic Liquids have attracted much interest for their use as non-aqueous electrolytes in electrochemical applications. In this context, their conductivity as well as their electrochemical stability are the most important physical properties. Together with other interesting properties such as their negligible vapor pressure and their non-flammability, they appear to be ideal electrolytes for many interesting applications such as electrodeposition of metals with maximum current efficiency (CE) …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 3, Issue 2, 2017 · pp. 19–38 Read article
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Comparative Study of Corrosion Inhibition In Carbon Steel Using Non Ionic Surfactants In Acidic Medium
Abstract: The use of surfactants is one of the numerous ways of protecting a metallic surface from electrochemical oxidation or corrosion. The amphiphilic nature of these surfactants leads to the formation of a protective layer on the metallic surface, effectively minimizing the area of contact between the fluids and the metal, thus inhibiting corrosion. Cationic surfactant like CTAB (Cetyltrimethylammonium bromide) has been most commonly used as a corrosion inhibitor, but since …
Published in International Journal of Chemical Engineering and Processing · Vol. 4, Issue 1, 2018 · pp. 21–29 Read article
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Machine Learning Approach for Analysis of Ionosphere Parameters for Earthquake Precursors
Abstract: This research explores the relationship between seismic events and predictive indicators, focusing on machine learning-based strategies for early earthquake prediction. It dissects existing prediction approaches, highlighting ionospheric anomalies' correlation with seismic occurrences, particularly preceding earthquakes of magnitudes higher than 5.5. By identifying a lack of comprehensive long-term analyses in the field, the study emphasizes future trends in machine learning-driven EQ-PD techniques using GPS-TEC data for real-time anomaly detection. The methodology …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 9, Issue 2, 2023 · pp. 37–46 Read article
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Fabrication of a Novel and Efficient Radiation Grafted Functionalized Polymer Adsorbent and Investigation of its Applicability in the Adsorptive Removal of Cr (VI) Ion from Aqueous Solution
Abstract: The grafting of glycidyl methacrylate (GMA) onto non-woven polyethylene (PE) fabric was accomplished using a radiation-initiated grafting technique. The grafted textiles were allowed to react using triethylamine to create functioning amine groups. Upon bond formation yield, the impact of grafting intensity has been examined. Utilizing the appropriate technologies, such as FTIR, TGA, and SEM, the adsorbents were rigorously examined. There was evidence of GMA grafting and diamines according to FTIR, …
Published in International Journal of Polymer Science and Engineering · Vol. 8, Issue 1, 2022 · pp. 1–15 Read article
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Lead (II) Ion Biosorption from Aqueous Solution ontoHexadecyltriammonium Bromide (HDTMA-Br) Modified Dry Water Hyacinth
Abstract: Heavy metal release into the environment by industrial activities has become a persistent problem,with these contaminants continually increasing in concentration. Heavy metals not only circulatethrough ecosystems but also accumulate in organisms over time, which elevates their toxic effectsalong the food chain. This research was conducted to explore the efficiency of biosorption inremoving lead (II) ions from aqueous solutions using water hyacinth powder modified withhexadecyltriammonium bromide (HDTMA-Br), a cationic surfactant. The …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 10, Issue 2, 2025 Read article
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Novel Ionic Liquids Supported Membranes: A Review
Abstract: In this work, a supported ionic liquid membrane (SILM) can be prepared by impregnating different types of polymers with suitable novel phosphonium-based ionic liquids (ILs). ILs have reached an enormous interest as CO2 solvents and other engineering applications due to their unique properties such as negligible vapour pressure and selectivity, making them very attractive in order to obtain stable supported liquid membranes. This work can appraise the preparation and use …
Published in International Journal of Chemical Separation Technology · Vol. 2, Issue 2, 2016 · pp. 15–23 Read article