Thermophysical Study of Ethylene Glycol + H<inf>2</inf>O and Ethylene Glycol + (DMF/H<inf>2</inf>O) at 298.15 K

Zainab Abbas Al-Dulaimy .; Israa Mohammed Radhi; Azhar Farooq abd alzhra; Huda A. Hassan; Sarab  O. Abdoun; Dhafir Tamween Ajeel Al-Heetimi

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Publication Date

Fri Dec 01 2023

Journal Name

Physical Chemistry Research

Volume

11

Issue Number

4

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Thermophysical Study of Ethylene Glycol + H<inf>2</inf>O and Ethylene Glycol + (DMF/H<inf>2</inf>O) at 298.15 K

Ethylene glycol Dimethyl formamide Density Viscosity and Activation energy of viscous flow

Zainab Abbas Al-Dulaimy .

Israa Mohammed Radhi

Azhar Farooq abd alzhra

Huda A. Hassan

Sarab O. Abdoun

Dhafir Tamween Ajeel Al-Heetimi

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n this research, some thermophysical properties of ethylene glycol with water (H2O) and two solvent mixtures dimethylformamide/ water (DMF + H2O) were studied. The densities (ρ) and viscosities (η) of ethylene glycol in water and a mixed solvent dimethylformamide (DMF + H2O) were determined at 298.15 K, t and a range of concentrations from 0.1 to1.0 molar. The ρ and η values were subsequently used to calculate the thermodynamics of mixing including the apparent molar volume (ϕv), partial molar volume (ϕvo) at infinite dilution. The solute-solute interaction is presented by Sv results from the equation ∅_v=ϕ_v^o+S_v √m. The values of viscosity (B) coefficients and Falkenhagen coefficient(A) of the Jone-Dole equation and Gibbs free energy of activation (∆G*) for viscous flow of solution were estimated. The positive values of ϕ_v^o between 35.58 and 49.908 and Sv values from 12.54 to 8.83 indicate strong solute-solvent interactions

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Publication Date

Fri Dec 01 2023

Journal Name

Iop Conference Series: Earth And Environmental Science

A study of the Effect of Diesel Oil Contamination with Glycol on the Performance of a Diesel Engine

Diesel engine performance

Engine oil

Glycol

Naseer Salman

Haider Ali

Ali Mazin

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AbstractThe performance of a diesel engine was tested with diesel oil contaminated with glycol at the engineering workshop/Department of Agricultural Machines and Equipment / College of the Agricultural Engineering Sciences at the University of Baghdad. To investigate the impact of different concentrations of glycol on the performance of a diesel engine, an experimental water-cooled four-stroke motor was utilized, with oil containing 0, 100, and 200 parts per million (ppm). Specific fuel consumption, thermal efficiency, friction power, and exhaust gas temperature were examined as performance indicators. To compare the significance of the treatments, the study employed a full randomization des ... Show More

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(1)

Publication Date

Mon Jun 30 2025

Journal Name

Basrah Journal Of Agricultural Sciences

Diesel Engine Efficiency under Varying Loads and Engine Oil Contaminated with Safe levels of Glycol

Engine performance

Exhaust gas temperature

Friction power

Glycol contamination

lubricating oil.

Haider Ali

Saif Alden

Ali Mazin

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Although allowable amounts of glycol contamination in diesel engine oil, no research has been conducted on how these levels and varying loads affect engine performance. The research used a four-stroke diesel engine to investigate the effect of different glycol contamination levels (0, 120, and 220 ppm) under two engine loads (4.5 and 9 kW). Brake specific fuel consumption, brake thermal efficiency, friction power, and exhaust gas temperature were measured to determine the engine performance. The experiment used the factorial arrangement in a completely randomized design (CRD) with three replicates. Increasing the contamination levels from 0 to 120 and then to 220 ppm under constant engine load significantly increased brake specific fuel con

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Publication Date

Wed Feb 27 2019

Journal Name

Asian Journal Of Chemistry

Estimation of Excess Properties of Binary Liquids Systems of Tetrahydrofurfuryl Alcohol with Short-Chain Carboxylic Acids at 298.15 K

Husam Saleem

Zainab Abbas

Ahmed Mohammed

Maida H.

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At the temperature 298.15 K, some physical properties such as: refractive indices (nD), viscosities (η) and densities (ρ) were studied in four liquid-liquid mixtures: carboxylic acids (HCOOH, CH3COOH, CH3CH2COOH and CH3CH2CH2COOH) with tetrahydrofurfuryl alcohol (THFA) with the identified configuration set. These empirical data were utilized to estimate the excess molar volumes (Vm E), refractive index perversions (ΔR), viscosity deviations (ηE) and excess molar Gibbs free energy (ΔG*E). Values of Vm E, ηE , ΔG*E and ΔR were plotted versus mole fraction of tetrahydrofurfuryl alcohol. In all cases, the values of Vm E, ηE , ΔG*E and ΔR that obtained in this study were found to be negative at 298.15 K. The excess parameters

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Publication Date

Tue May 01 2018

Journal Name

Journal Of Physics: Conference Series

The partial substitution of copper with nickel oxide on the Structural and electrical properties of HgBa2 Ca2 Cu3xNix O8+δ superconducting compound

Laheeb A

L A

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Publication Date

Wed Aug 01 2018

Journal Name

Journal Of Colloid And Interface Science

Removal of monoethylene glycol from wastewater by using Zr-metal organic frameworks

Sami

Hussein Rasool

Zhengxin

Rolf

Shaobin

Ahmed

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Publication Date

Tue Mar 30 2021

Journal Name

Baghdad Science Journal

Variant Domination Types for a Complete h-ary Tree

domination

restrained domination

secure domination

complete h-ary trees. Mathematical subject classification: 05C69

Rasha Jalal

Manal N.

Fatema Ahmad

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Graph is a tool that can be used to simplify and solve network problems. Domination is a typical network problem that graph theory is well suited for. A subset of nodes in any network is called dominating if every node is contained in this subset, or is connected to a node in it via an edge. Because of the importance of domination in different areas, variant types of domination have been introduced according to the purpose they are used for. In this paper, two domination parameters the first is the restrained and the second is secure domination have been chosn. The secure domination, and some types of restrained domination in one type of trees is called complete ary tree are determined.

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(2)

Publication Date

Sat Sep 01 2012

Journal Name

Australian Journal Of Basic And Applied Sciences

Electrochemical interferences of Mn2+ with Hg2+, Cd2+ and Cu2+ at different modified GCE

cyclic voltammetry-CNT/Li+/GCE-C60/Li+/GCE-Mn2+

Muhammed M.

Mahmood Radhi

Ebtisam M-T.

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Glassy carbon electrode (GCE) was modified with carbon nanotubes CNT and C60 by attachment and solution evaporation techniques, respectively. CNT/Li+/GCE and C60/Li+/GCE were prepared by modifying CNT/GCE and C60/GCE in Li+ solution via cyclic voltammetry (CV) potential cycling. The sensing characteristics of the modified film electrodes, demonstrated in this study for interference of Mn2+ in different heavy metals ion esp. Hg2+, Cd2+ and Cu2+. The interfering effect was investigated that exert positive interference on the redox peaks of Mn2+. The modification of GCE with nano materials and Li+ act an enhancement for the redox current peaks to observe the effect of interference for Mn2+ in 1:1 ratio with different heavy metals ion.

(3)

Publication Date

Sat Apr 01 2023

Journal Name

Baghdad Science Journal

Synthesis, Spectroscopy of New Lanthanide Complexes with Schiff Base Derived From (4-Antipyrinecarboxaldehyde with Ethylene Di-Amine) and Study the Bioactivity

4-antipyrinecarboxaldhyed

Biological Activity

Metal complexes (lanthanide)

Schiff’s bases

Thermogravimetric Analysis

Kawther Adeeb

Shatha

Naser

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The study involved preparing a new compound by combining Schiff bases generated from compounds for antipyrine, including lanthanide ions (lanthanum, neodymium, erbium, gadolinium, and dysprosium). The preparation of the ligand from condensation reactions (4-antipyrinecarboxaldehyde with ethylene di-amine) at room temperature, and was characterization using spectroscopic and analytical studies ( FT-IR, UV-visible spectra, ¹H-NMR, mass spectrometry, (C.H.N.O), thermogravimetric analysis (TGA), in addition to the magnetic susceptibility and conductivity measurement of the synthesis complexes, among the results we obtained from the tests, we showed that the ligand behaves with the (triple Valence) lanthanide ions, the multidentate

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Publication Date

Thu Apr 18 2019

Journal Name

Al-kindy College Medical Journal

Prevalence of H pylori in obese attending Obesity therapy Unit

Obesity

helicobacter pylori

BMI

Mumtaz K

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Background: Obesity is an increasing health problem in developed countries and has grown into a major global epidemic. Recent studies suggested colonization of the stomach by Hpylori might affect gastric expression of appetite- and satiety-related hormone and patients cured of H pylori infection gained weight. Obesity and Helicobacter pylori (H. pylori) are important because of the problems they lead and their frequency of occurrence.

Objectives: To find out the prevalence of H. pylori infection in obese.

Type of the study:A cross-sectional study

Methods: A total of 32 obese female admitted to the study. Body mass indices (BMI) of all subjects wer

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Publication Date

Sat May 31 2025

Journal Name

3rd International Scientific Conference For Human And Social Studies And Epistemological Challenges

Frankenstein Complex in Daniel H. Wilson's Robopocalypse ( ): Artificial Intelligence Conspiracies

With the advent of technology

the fear of losing control has consistently accompanied humanity. While humans have discovered

invented

and created many remarkable things

they have also been haunted by the possibility of their creations turning against them. This fear

often referred to as the Frankenstein Complex

derives its name from Mary Shelley's Frankenstein (􀀔􀀛􀀔􀀛)

in which Dr. Frankenstein's creation ultimately destroys its maker. The Frankenstein Complex embodies the subconscious fear of artificial intelligence (AI) surpassing and potentially dominating humankind. This apprehension has inspired numerous literary works

including Daniel H. Wilson’s novels. The present study examines the widespread fear of AI

which has fueled conspiracy theories in literature. These theories have not only amplified public anxiety but also hindered understanding among those with limited knowledge of AI and robotics. Dr. Wilson

a robotics expert

uses his imagination as a driving force for both his writing and his inventions. The research focuses on incidents leading to the rise of robots

the concept of the New War

how it was fought

and how it concluded. By comparing

contrasting

and analyzing literary elements and devices with prominent conspiracy theories

the study highlights the interplay between fiction and scientific development. The researchers conclude that while many conspiracy theories contain elements of truth

they often inspire scientists to explore them further. Additionally

some conspiracy theories warrant serious consideration. The study recommends acknowledging the Frankenstein Complex while maintaining faith in the potential benefits of artificial intelligence.

Ansam

Mayada

Zahraa

...Show More Authors

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