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Potentiometric Determination of Iodide in Magnesium Fluoride by Iodide Electrode
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Iodide Ø¢ in samples Ø¢ containing Ø¢ magnesium Ø¢ fluoride Ø¢ was Ø¢ determinedØ¢  Ø¢ by using iodide selective Ø¢ electrode. Ø¢ Detecting Ø¢ the limit for iodide determination

was around Ø¢ 5x1 oآ·5Ø¢ Ø¢ M with a standard Ø¢ deviation Ø¢ ranged Ø¢ from Ø¢ Ø¢Â± 0.3 to آ± 0.6.

QuantitativeØ¢  Ø¢ methodsØ¢  Ø¢ including; standard Ø¢ additionØ¢  Ø¢ method, Ø¢ Potentiometric

titration Ø¢ by using a Gran plot paper for an equivalent Ø¢ point determination and a Ø¢ directØ¢  Ø¢ methodØ¢  Ø¢ wereØ¢  Ø¢ used Ø¢ for Ø¢ the Ø¢ analysis.Ø¢  Ø¢ DissolutionØ¢  Ø¢ of Ø¢ magnesium fluoride samples Ø¢ was investigated Ø¢ in various acids (HCI, HN03, HCI04, and H3P04). Good Ø¢ recovery Ø¢ of Ø¢ iodide Ø¢ was obtained Ø¢ by using Ø¢ hydrochloric and phosphoric Ø¢ acids Ø¢ for dissolution. Interference Ø¢ of Ø¢ uranyl Ø¢ ion and Ø¢ halide Ø¢ ions,

pآ·, cr,Ø¢ and Br- on iodide response was also studied. This method can be used

for the determination of iodide in magnesium Ø¢ fluoride obtained Ø¢ from uranium

metal production.

 

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Publication Date
Mon Mar 25 2024
Journal Name
International Journal Of Drug Delivery Technology
Solubility and Dissolution Enhancement of Candesartan Cilexetil by Complexation with Cyclodextrin
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At present, numerous novel chemical compounds face challenges related to their limited solubility in aqueous environments. These compounds are classified under the Biopharmaceutical Classification System (BCS) as either class II or class IV substances. Different carriers were used to increase their solubility. Candesartan cilexetil (CC) is one of the most widely used antihypertensive drugs, which belongs to class II drugs. The aim of this research was to enhance the solubility and dissolution rate of CC through a complexation approach involving β-cyclodextrin and its derivatives, specifically hydroxypropyl beta cyclodextrin (HP-β-CD), methyl beta cyclodextrin (M-β-CD), and sulfonyl ether beta-cyclodextrin (SBE-β-CD), serving as

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Publication Date
Sat Dec 30 2023
Journal Name
Iraqi Journal Of Science
Energy Consumption Prediction of Smart Buildings by Using Machine Learning Techniques
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     This paper presents an IoT smart building platform with fog and cloud computing capable of performing near real-time predictive analytics in fog nodes. The researchers explained thoroughly the internet of things in smart buildings, the big data analytics, and the fog and cloud computing technologies. They then presented the smart platform, its requirements, and its components. The datasets on which the analytics will be run will be displayed. The linear regression and the support vector regression data mining techniques are presented. Those two machine learning models are implemented with the appropriate techniques, starting by cleaning and preparing the data visualization and uncovering hidden information about the behavior of

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Publication Date
Wed Dec 30 2020
Journal Name
Iraqi Journal Of Chemical And Petroleum Engineering
Removal of Acetaminophen Residues from Wastewater by Bulk Liquid Membrane Process
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   The removal of Anit-Inflammatory drugs, namely; Acetaminophen (ACTP), from wastewater by bulk liquid membrane (BLM) process using Aliquat 336 (QCl) as a carrier was investigated. The effects of several parameters on the extraction efficiency were studied in this research, such as the initial feed phase concentration (10-50) ppm of ACTP, stripping phase (NaCl) concentration (0.3,0.5,0.7 M), temperature (30-50oC), the volume ratio of feed phase to membrane phase (200-400ml/80ml), agitation speed of the feed phase (75-125 rpm), membrane stirring speed (0, 100, 150 rpm), carrier concentration (1, 5, 9 wt%), the pH of feed (2, 4, 6, 8, 10), and solvent type (CCl4 and n-Heptane). The study shows that high ext

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Publication Date
Thu Oct 15 2015
Journal Name
Journal Of Physical Vapor Deposition Science And Technology (jpvdst)
Physical Properties of Nanostructured Silicon Dioxide Prepared by Pulsed-Laser Deposition
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Publication Date
Mon May 08 2017
Journal Name
Ibn Al-haitham Journal For Pure And Applied Sciences
Optical Properties of SnS2 Thin films Prepared By Chemical Spray Pyrolysis
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 Thin films of tin disulphide SnS2 with different thicknesses (2500,4000,5000)A0 have been prepared by chemical spray pyrolises technique on substrate of glass with temperature (603)K .  The effect of thickness on the optical properties of SnS2 has been studied.the optical  study that includes the absorptance and transmittance spectra in the wavelength range (300900)nm demonstrated that the value of absorption coefficient (α) ) was greater than (104 cm-1) the  electronic transitions at the fundamental absorption edge were of the indirect kind whether allowed and forbidden . Absorption edge shift slightly towards higher wave  length.The value of energy gaps (Eg) for all the films prepared are decreased with inc

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Publication Date
Mon Aug 14 2017
Journal Name
Ibn Al-haitham Journal For Pure And Applied Sciences
Photoconductivity of sensitization (ZnO/ Polystyrene(PS))Composites by Rose Bengal Dye
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The photoactive behaviour of rose bengal dye sensitized (ZnO/ Polystyrene (PS)) composites was studied. Two concentrations of composite(30% Zn0/70% PS) and (50% ZnO 150% PS) with (0.05 0.1.0.3,1%)weight percentages of dye were used. The composites are photoconductive and the photoconductivity action spectrum gives the effect of the dye in the visible region.

In the absence of dye within the composites,  no photoactivity  is

observed  in this  region  of the spectrum. The photoconductivity  is affected by the dye content.

Time of flight technique was used to measure response time. The

rise time of the photocurrent is fast and the decay is slow.

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Publication Date
Sat Jan 01 2022
Journal Name
Plasma Medicine
Effect of Cold Atmospheric Plasma on Osteoporosis by FE-DBD System
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The work demonstrates the effect of cold atmospheric plasma (CAP) on adult female rats suffering from osteoporosis, the used plasma was generated by a floating electrode-dielectric barrier discharge system with an electrode diameter of 3 cm. The output power was from (12-20) watts. The effect of non-thermal plasma was observed on rats with various exposure times of 20, 30, and 40 sec. It was noted that the blood calcium percentage of animals exposed to cold plasma increased, as well as an increase in the level of vitamin D3 at the same time, it is noted that there is no effect on parathyroid hormone level. For the thyroid gland, it is noticed an increase in the level of T3, and T4 hormones in the blood during the period of induction for

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Publication Date
Sun Sep 07 2008
Journal Name
Baghdad Science Journal
Variables Affecting Developments of Hydroxyapatite Coating by Using Electrophoretic Deposition Technique
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Electrophoretic Deposition (EPD) process offers various advantages like the fabrication of the ceramic coatings and bodies with dense packing, good sinterability and homogenous microstructure. The variables namely (applied potential, deposition time and sintering temperature) affected the development of hydroxyapatite (HAP) coatings. The coating weight and thickness were found to increase with the increase in applied potential or coating time. Sintering temperature was found to affect in change phases of the metal, furthermore the firing shrinkage of the HAP coating on a constraining metal substrate leads to serve cracking. XRD Characterization indicates the formation of a contamination free phase pure, and the optical micrographs show th

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Crossref
Publication Date
Fri May 01 2020
Journal Name
Journal Of Physics: Conference Series
A CERTAIN SUBCLASS OF MULTIVALENT HARMONIC FUNCTIONS DEFINED BY RUSCHEWEYH DERIVATIVES
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Abstract<p>We introduce a new class of harmonici multivalent functions define by generalized Rucheweyh derivative operator. We also obtain several interesting propertiesi such as sharp coefficienit estimates, distortioni bound, extreme points, Hadamardi product and other several results. Derivative; extreme points.</p>
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Publication Date
Tue Feb 11 2025
Journal Name
Journal Of Baghdad College Of Dentistry
Evaluation of frictional forces generated by different brackets and orthodontic wires
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Background: Sliding mechanics is widely used during orthodontic treatment. One of the disadvantages of this mechanics is the friction generated at the bracket/archwire interface, which may reduce the amount of desired orthodontic movement obtained. The aim of the present in vitro study was to evaluate and compare the static frictional forces produced by two passive self-ligating brackets stainless-steel and hybrid and two conventional brackets stainless-steel and monocrystal ligated with stainless-steel ligature wire at two degrees of torque(zero and twenty) under dry condition. Materials and method: One hundred and sixty brackets were used in this study divided into four groups each group consisted of forty brackets these are: Two self-li

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