Effect of plant-extract disinfectant solutions on the specific properties of reinforced maxillofacial silicone elastomers with nanofiller and intrinsic pigment

Faiza Abdul-Ameer

doi:10.4103/ejgd.ejgd_86_19

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Publication Date

Fri May 01 2020

Journal Name

European Journal Of General Dentistry

Volume

9

Issue Number

2

DOI

10.4103/ejgd.ejgd_86_19

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Effect of plant-extract disinfectant solutions on the specific properties of reinforced maxillofacial silicone elastomers with nanofiller and intrinsic pigment

Cosmesil M511 silicone

disinfectant agent

mechanical property

Salvadora Persica L.

VST50F silicone

Faiza Abdul-Ameer

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Abstract<p> Objective This study aimed to evaluate the effects of disinfectant solutions, namely, the alcoholic extract of Salvadora persica L. (A1 = 10% and A2 = 15%) and chlorhexidine digluconate (A3 = 2%), on the tear strength and hardness of room temperature vulcanizing (RTV) VST50F and heat temperature vulcanizing (HTV) Cosmesil M511 silicone elastomers before and after reinforcement with nanofillers (TiO2) and intrinsic pigment. Materials and Methods: A total of 320 specimens were prepared, with 160 specimens each for RTV and HTV silicone. Forty specimens were evaluated before disinfection and divided into two equal groups, namely, control (without additive) and experimental (with additive) groups, for tear strength and hardness tests. The 120 specimens were divided into three equal groups, with two equal subdivisions for tear strength and hardness tests, and were evaluated after disinfection. ANOVA and Tukey's honest significant difference tests were conducted for group comparisons (significance level set at P < 0.05). Results: The tear strength of all groups decreased after disinfection, with the highest values in the experimental group. Most comparisons showed significant differences. A1 exhibited no significant effect on the tear strength and hardness of the HTV control and the hardness of the RTV experimental specimen. The hardness of the HTV control was not significantly affected by A3. A1 with A3 did not significantly affect the tear strength and hardness of the RTV control and the tear strength of the RTV experimental specimen. The results of comparisons between A1 and A2, and A1 and A3 in the HTV tear strength of the experimental group and the A2 and A3 of the control and experimental groups were not significant. Conclusions: S. persica L. can be used as a natural disinfectant agent. The reinforcement of maxillofacial silicone prosthesis can extend its survival duration.</p>

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Publication Date

Wed Jun 01 2022

Journal Name

Baghdad Science Journal

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Abbas M.

Ahmed F.

Monim. H.

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Nitrogen dioxide NO₂ is one of the most dangerous contaminant in the air, its toxic gas that cause disturbing respiratory effects, most of it emitted from industrial sources especially from the stack of power plants and oil refineries. In this study Gaussian equations modelled by Matlab program to state the effect of pollutant NO₂ gas on area around Durra refinery, this program also evaluate some elements such as wind and stability and its effect on stacks height. Data used in this study is the amount of fuel oil and fuel gas burn inside refinery at a year 2017. Hourly April month data chosen as a case study because it’s unsteady month. After evaluate emission rate of the all fuel and calculate exit velocity from

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Journal Name

Chemical Papers

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Fri Sep 30 2011

Journal Name

Al-khwarizmi Engineering Journal

Steady State Performance Investigation of a Three Phase Induction Motor Running Off Unbalanced Supply Voltages

Three phase induction motor

unbalanced supply voltage

MATLAB/simulink

Aslan Sabahaldeen

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The objective of this work is to investigate the performance of a conventional three phase induction motor supplied by unbalanced voltages. An effort to study the motor steady state performance under this disturbance is introduced. Using per phase equivalent circuit analysis with the concept of symmetrical components approach, the steady state performance is theoretically calculated. Also, a model for the induction motor with the MATLAB/Simulink SPS tools has been implemented and steady state results were obtained. Both results are compared and show good correlation as well. The simulation model is introduced to support and enhance electrical engineers with a complete understanding for the steady state performance of a fully loaded induc

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Publication Date

Mon Oct 10 2022

Journal Name

International Journal Of Mathematics In Operational Research

Modelling time-series process of an agricultural crop production process by EWMA quality control chart

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SPC

control chart

EWMA

AR

MA

ARMA.

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Publication Date

Fri Jul 21 2023

Journal Name

Journal Of Engineering

ADJUSTING OFF – CENTERING PROCESS FOR A BLOW MOLDED PLASTIC PRODUCT BY USE OF WINQSB SOFTWARE

: Process Capability

Process Capability Analysis

WinQSB Software

Process Capability Index

Control Charts

Mean Shift

Off – Center

Ahmed A.

Kawakib A.

Dursaaf M. H.

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In most manufacturing processes, and in spite of statistical control, several process capability indices refer to non conformance of the true mean (µc ) from the target mean ( µT ), and the variation is also high. In this paper, data have been analyzed and studied for a blow molded plastic product (Zahi Bottle) (ZB). WinQSB software was used to facilitate the statistical process control, and process capability analysis and some of capability indices. The relationship between different process capability indices and the true mean of the process were represented, and then with the standard deviation (σ ), of achievement of process capability value that can reduce the standard deviation value and improve production out of theoretical con

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Publication Date

Fri Apr 01 2022

Journal Name

Heliyon

Stigma towards health care providers taking care of COVID-19 patients: A multi-country study

Abdulqadir J.

Glenn Ford D.

Sadeq

Hani

Hossam

Muna

Joseph U.

Ibtesam O.

Hawa

Nabil E.

Fade

I. Ketut

Aiman

Bilal

Malik

Marwa M.

Mostafa

Hayder

Mohammed B.

Sabah A

Shaymaa M.

Ayat J.

Mohammed A.

Nisha

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evolutionary algorithm

gas lift

artificial intelligence

upstream oil & gas

machine learning

optimization problem

correlation

presented

allocation

reservoir pressure

Mohammed Ahmed

Omar F.

Dhifaf Jaafar

Haider Abdulmuhsin

Mustafa Alaulddin

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Abstract<p>Artificial lift techniques are a highly effective solution to aid the deterioration of the production especially for mature oil fields, gas lift is one of the oldest and most applied artificial lift methods especially for large oil fields, the gas that is required for injection is quite scarce and expensive resource, optimally allocating the injection rate in each well is a high importance task and not easily applicable. Conventional methods faced some major problems in solving this problem in a network with large number of wells, multi-constrains, multi-objectives, and limited amount of gas. This paper focuses on utilizing the Genetic Algorithm (GA) as a gas lift optimization algorit</p> ... Show More

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Publication Date

Sun Dec 01 2019

Journal Name

Journal Of Ecological Engineering

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