Search
181 articles for “ION”
-
The decomposition of tris-(oxalato)-manganate (III) complex ion as the reaction suitable for the laboratory practice on chemical kinetics
Abstract: The complex ion [Mn(C2O4)3]3- is very photosensitive and rapidly decomposes at the daylight even at ambient temperatures. Although the mechanism of this reaction is complicated, its kinetic equation obeys the pseudo-first order. In addition, the tris-(oxalate)-manganate ion has a low thermal stability, and the reaction of its decomposition is highly affected by temperature. This makes this reaction very suitable for demonstrating the laws of chemical kinetics to the students – …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 2, Issue 2, 2016 · pp. 1–10 Read article
-
Detection of Environment Ionization Radiation with GM Tube
Abstract: For environmental ionizing radiation hazard monitoring applications, very sensitive detector electronics has been developed. Experiments were performed using International Standard beta and gamma sensitive Mica window type GM Tube LND-712 from LND Inc. USA and Russian fast GM Tube with Aluminium energy compensated shield. Both tubes were operated with regulated DC high voltage power supply in the range of 300V to 500V range using Matsusada Japan make 1kV 5W programmable …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 2, Issue 2, 2016 · pp. 15–19 Read article
-
Use of Atomic Force Microscopy on Lithium-Ion Batteries
Abstract: Improvement of cutting edge Lithium Ion Batteries (LIBs) shows a quickly developing field of science and innovation. In any case, numerous crucial issues stayed uncertain because of absence of comprehension of surface/interface understanding of LIB on nanometer scale. Here, we survey late uses of nuclear power microscopy to study three key parts of lithium particle batteries specifically strong electrolyte interface, particle transportation and dendrite development. In situ AFM is a …
Published in International Journal of Applied Nanotechnology · Vol. 2, Issue 1, 2016 · pp. 21–23 Read article
-
Effects of Tungstate and Nitrite Ions as Corrosion Inhibitor for Cr-10Zr-10W Alloy in 0.5 M NaCl Solution
Abstract: The effect of different concentrations of tungstate and nitrite ions as corrosion inhibitors on the corrosion behavior of the sputter-deposited ternary Cr–10Zr–10W alloy was studied in 0.5 M NaCl solution open to air at 25±1°C using corrosion tests and corrosion potential measurement. The use of both the tungstate and nitrite ions enhanced the corrosion resistance properties of the alloy in 0.5 M NaCl solution. It is found that the tungstate …
Published in International Journal of Metallurgy and Alloys · Vol. 5, Issue 1, 2019 · pp. 11–19 Read article
-
Presence of Chemical Ions in Raw and Treated Water
Abstract: Dhaka water supply and sewerage authority utilizes a section of the DND canal from Sarulia to Kajla to convey raw water from the Shitalakhya river to the water treatment plant at Saidabad. Raw water quality is poor mostly in the dry season. High heavy metal concentration in the water at the intake point is found. Aluminum (Al), Cadmium (Cd), Lead (Pb), and Mercury (Hg) are detected in river water which …
Published in International Journal of Green Chemistry · Vol. 5, Issue 2, 2019 · pp. 9–21 Read article
-
Kinetics of Oxidation of L-Proline by Hexacyanoferrate (III) Ion in Presence of Os (VIII)
Abstract: Amino acids are building block of proteins and maintaining a vital role in growth of human beings as well as animals. Amino acids may form metal complexes and other complexes in animal and human body. Therefore, the study of oxidation of amino acids as well as their complexes is interesting area for academicians and physicians. Amino acids are the compounds of two functional groups -NH2 and –COOH. Hence depending on …
Published in International Journal of Chemical Engineering and Processing · Vol. 7, Issue 1, 2021 · pp. 12–24 Read article
-
Study of Heavy Metal ion adsorption from Synthetic Wastewater with the help of biomass and analysis of Mathematical Model
Abstract: The biofilm matrix is a mixture of secreted polymers, metabolites and nutrients ingested, lysis solution products, and even particle debris. This matrix, which is polyanionic by nature, is essential for the activated carbon of metal cations. In this study, the heavy metal adsorption mechanism in biofilms is modelled in one spatial dimension. The numerical method is a free-boundary value issue for nonlinear parabolic and quadratic partial differential equations. Parabolic equations …
Published in International Journal of Polymer Science and Engineering · Vol. 8, Issue 1, 2022 · pp. 45–56 Read article
-
Effectiveness of Vegetable oil Based Cutting Fluid (VBCF) with Non-ionic Surfactants in Turning EN8 Steel
Abstract: In the present work, properties of the the non-ionic surfactants have been used to formulate vegetable oil based cutting fluid (VBCF) palm oil for the emulsion as non-conventional lubricant. Tool temperature and surface finish are plays an important indicator of quality in manufacturing industries and thus they are regarded as the most important parameters to be considered. In this present work different machining parameters were taken and their effect on …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 5, Issue 2, 2019 · pp. 21–30 Read article
-
Application of a graphene oxide for determination of Cadmium, Lead, Copper and Zinc ions at trace level in personal Care Products using Solid Phase Extraction
Abstract: A novel and simple procedure Solid Phase µ-extraction was successfully used as a sample preparation method for the pre concentration and determination of Cd, Pb, Cu, and Zn in different personal care products samples. In the first screening, a five variables were selected with low (-) and high level (+) and were inspected by Plackett–Burman. In order to further optimization, a central 23 +star orthogonal composite design (CCD) was applied …
Published in International Journal of Analytical and Applied Chemistry · Vol. 6, Issue 1, 2020 · pp. 14–23 Read article
-
SOC estimation for Battery Management Systems using Li-ion Batteries in Electric Vehicles
Abstract: Since the battery system controls the occupants' safety, functioning, and even life, most electric vehicles (EVs) require battery monitoring. This is precisely what Battery- management system is: to monitor and regulate the condition of the battery among the parameters set for safe operation. For safe and dependable operation, electric vehicles (EVs) need high rated capacity batteries and appropriate battery management systems (BMS). Consumer adoption of high energy density battery materials …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 9, Issue 1, 2023 · pp. 13–21 Read article
-
Advanced Battery Management System Techniques in Electric Vehicle: A Review
Abstract: Since they are efficient and emit no emissions when in use, electric vehicles are a key component of sustainable transportation in the modern world. The battery’s performance has a big impact on the electric vehicle’s driving range. The selection of the battery, its technology, and its effective use are crucial for it. As far as battery technology is concerned, lithium-ion batteries are the preferred option for power storage systems due …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 10, Issue 2, 2024 · pp. 6–15 Read article
-
Enhancement of Heat Transfer Coefficient in Shell and Tube Heat Exchanger Using 1-Butyl-3-Methylimidzaolium Bromide
Abstract: Improvement in heat transfer coefficient in heat exchanger plays very important energy saving role in the industries. In this study the effect of ionic liquid on HT coefficient was studied using a lab scale shell and tube heat exchanger (length-39 cm, shell diameter 9 cm, Tube diameter 0.62 cm). Also the effect of cold and hot flow rate on heat transfer coefficient, Effect of mass concentration of ionic liquid was …
Published in International Journal of Chemical Separation Technology · Vol. 2, Issue 1, 2016 · pp. 11–18 Read article
-
THERMODYNAMICS OF HEAVY METALS (Hg2+, Cd2+, Fe2+AND Ni2+) ADSORPTION USING BOILER FLY ASH
Abstract: The effect of temperature on the adsorption of heavy metals, Hg2+, Cd2+, Fe2+ and Ni2+ using unactivated boiler fly ash (an agricultural waste) was investigated. The results showed that Hg2+ and Cd2+ ions were mostly affected by increase in temperature because their sorption rate decreased at high temperature. At the temperature of 273 K and 383 K, the amount of Hg2+ adsorbed (mg/g) by the unactivated boiler fly ash was …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 6, Issue 2, 2020 · pp. 25–34 Read article
-
Organic Compound 5-(4-methoxybenzyl)-N-phenyl-1,3,4-thiadiazol-2-amine and NiS filler used to Mitigation the Corrosion of Mild steel and in Marine Atmosphere
Abstract: The concentration of chloride ions is higher in marine atmosphere. The bulk amount of mild steel uses in sea weather for different works. This metal is very sensitive in chloride ions. It produces hostile environment for mild steel. Chloride ions develop corrosion cell on the surface of mild steel and it changes their external and internal morphology as well as physical, chemical and mechanical properties. Mild steel exhibits corrosion reaction …
Published in International Journal of Metallurgy and Alloys · Vol. 5, Issue 2, 2019 · pp. 56–64 Read article
-
Nanotechnology as a new perspective in Regenerative Medicine
Abstract: The introduction of nanotechnology has brought a transformation in medical technology frommicro fluidics to nanomedicine. As nanotechnology is multidisciplinary, it promotes severalscience and technology. Importantly, strategies and principles of physic and nanotechnologyas new perspective in nanomedicine, plays a pivotal role in personal medicine, precisionmedicine, and regenerative medicine. Herein, look toward the strategies of physics includingelectric stimulations, magnetism, and electro mechanics in shaping the regenerative medicine.Moreover, the potential of nanotechnology in …
Published in International journal of Nanobiotechnology · Vol. 11, Issue 2, 2025 Read article
-
Green Solvent Extraction: Sustainable Approaches for Chemical Separation
Abstract: Solvent extraction techniques have advanced significantly as a result of the increased focus on sustainability and environmental responsibility. Traditional organic solvents, while effective in chemical separation processes, often contribute to environmental pollution and pose health risks. In response, researchers have explored greener alternatives that minimize these adverse effects. Compared to traditional procedures, green solvent extraction offers safer and more environmentally friendly solutions by using bio-based solvents, ionic liquids, and deep …
Published in International Journal of Chemical Separation Technology · Vol. 11, Issue 1, 2025 Read article
-
Optimization Techniques for Battery Health Monitoring and Management
Abstract: The "IoT-Based Battery Management System" project represents an innovative solution to address the growing demand for efficient and intelligent battery monitoring and management across various applications. In order to achieve maximum efficiency from a multi-cell Li-ion battery, every cell inside the battery must be "matched." Most battery safety and qualification standards demand that a battery be built entirely of compatible cells. Still, not much work is done to ensure that …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 10, Issue 1, 2024 Read article
-
Performance Analysis of Effect of Underlap with Fixed Gate Length: GaN-based Double Gate MOSFET
Abstract: The effect of gate length 8 nm with underlap of double gate MOSFET has been designed for VLSI Technology. The evaluation process was followed by NEGF (non-equilibrium Green’s function) formalism using SILVACO ATLAS followed to ITRS–2013. The investigations on the threshold voltage, Sub threshold Slope, ION, IOFF, ION/IOFF, DIBL and switching characteristics of the electric field have been done with the simulation results. In the simulation, adopting symmetrical distances from …
Published in International Journal of Applied Nanotechnology · Vol. 6, Issue 2, 2020 · pp. 19–25 Read article
-
Advancement of Nanotechnology in Batteries
Abstract: As energy source used by most devices such as smart phones, cameras or computers are Lithium batteries, they are becoming the indistinguishable feature of everyday modern civilization. The higher power efficiency was most appealing attribute when opposed to certain redox power devices. It gives rise for significant concern well into the production of hybrid lithium ion batteries for electric automobiles. At higher density lithium constitutes its ideal anode element in …
Published in International Journal of Energetic Materials · Vol. 6, Issue 2, 2020 · pp. 18–24 Read article
-
Recent Trends and Challenges of Lithium Sulphur Batteries
Abstract: Lithium-ion (Li-ion) batteries that are currently available in market have certain limitations due to their low energy density and do not meet the growing demands of the energy storage market. Thus, the building next-generation rechargeable Li and Li-ion batteries with the higher energy densities, better safety characteristic, lower cost and longer cycle life is vibrant to overcome the challenges of fast depleting conventional energy resources. To achieve smaller and lighter …
Published in International Journal of Metallurgy and Alloys · Vol. 6, Issue 2, 2020 · pp. 1–6 Read article