Study the Effect of the High Voltage on The preparation of Polyvinyl Alcohol/ Tio2 Nano Fiber by Electrospinning

B. T. Chide; A. H. AL-Wattar; Nathera Ali; W. A. Twej; M. A. Hameed; A. Q. Ubaid; Q. M. Sallman; A. B. Redha

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Publication Date

Tue Dec 01 2009

Journal Name

Iraqi Journal Of Physics

Volume

Vol. 7

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Study the Effect of the High Voltage on The preparation of Polyvinyl Alcohol/ Tio2 Nano Fiber by Electrospinning

B. T. Chide

A. H. AL-Wattar

Nathera Ali

W. A. Twej

M. A. Hameed

A. Q. Ubaid

Q. M. Sallman

A. B. Redha

...Show More Authors

Abstract:In this research we prepared nanofibers by electrospinning from poly (Vinyl Alcohol) / TiO2. The spectrum of the solution (Emission) was studied at 772 nm. Several process parameter were Investigated as concentration of PVA, the effect of distance from nozzle tip to the grounded collector (gap distance), and final the effect of high voltage. We find the optimum condition to prepare a narrow nanofibers is at concentration of PVA 16gm, the fiber has 20nm diameter.

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Publication Date

Wed Dec 30 2020

Journal Name

Iraqi Journal Of Pharmaceutical Sciences ( P-issn 1683 - 3597 E-issn 2521 - 3512)

Association of Retinol Binding Protein- 4 (RBP4) with Glycemia, Dyslipidemia, Hypertension, and Obesity in Type 2 Diabetic Iraqi Patients

RBP4

Type 2 diabetes mellitus

Dyslipidemia

Hypertension

Obesity.

Thair L.

Ali

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Abstract:

Background: Retinol binding protein 4 (RBP4), an adipokine that participate in a lipid metabolism or insulin resistance through a complex regulatory network. Recently, RBP4 was reported to be associated with many cardiovascular diseases (CVDs) risk factors in patients of type 2 diabetes mellitus (T2DM). This study aims to study the correlation of serum RBP4 with some markers of glycemic control, dyslipidemia, hypertension and obesity in T2DM Iraqi patients.

Subjects and Methods: one hundred fifty participants were enrolled in this coss-sectional study, 120 of participants were T2DM patients and 30 were apparently healthy individuals to serve as control gro

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Publication Date

Tue Aug 23 2022

Journal Name

Frontiers In Energy Research

Evaluation of T-Shaped Fins With a Novel Layout for Improved Melting in a Triple-Tube Heat Storage System

Mohammadreza

Hayder I.

Raed Khalid

Anmar

Jasim M.

Hasan

Mohammad Mehdi

Pouyan

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The effects of T-shaped fins on the improvement of phase change materials (PCM) melting are numerically investigated in vertical triple-tube storage containment. The PCM is held in the middle pipe of a triple-pipe heat exchanger while the heat transfer fluid flows through the internal and external pipes. The dimension effects of the T-shaped fins on the melting process of the PCM are investigated to determine the optimum case. Results indicate that while using T-shaped fins improves the melting performance of the PCM, the improvement potential is mainly governed by the fin’s body rather than the head. Hence, the proposed T-shaped fin did not noticeably improve melting at the bottom of the PCM domain; additionally, a flat fin is ad

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(37)

(15)

Publication Date

Sat Apr 30 2022

Journal Name

Revue D'intelligence Artificielle

Performance Evaluation of SDN DDoS Attack Detection and Mitigation Based Random Forest and K-Nearest Neighbors Machine Learning Algorithms

Mayadah A.

Ali H.

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Software-defined networks (SDN) have a centralized control architecture that makes them a tempting target for cyber attackers. One of the major threats is distributed denial of service (DDoS) attacks. It aims to exhaust network resources to make its services unavailable to legitimate users. DDoS attack detection based on machine learning algorithms is considered one of the most used techniques in SDN security. In this paper, four machine learning techniques (Random Forest, K-nearest neighbors, Naive Bayes, and Logistic Regression) have been tested to detect DDoS attacks. Also, a mitigation technique has been used to eliminate the attack effect on SDN. RF and KNN were selected because of their high accuracy results. Three types of ne

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(12)

(6)

Publication Date

Sun Mar 01 2020

Journal Name

Iop Conference Series: Materials Science And Engineering

Using Remote Sensing and GIS in Measuring Vegetation Cover Change from Satellite Imagery in Mosul City, North of Iraq

M. F.

B. A.

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AbstractThe aim of the study is the assessment of changes in the land cover within Mosul City in the north of Iraq using Geographic Information Systems (GIS) and remote sensing techniques during the period (2014-2018). Satellite images of the Landsat 8 on this period have been selected to classify images in order to measure normalized difference vegetation index (NDVI) to assess land cover changes within Mosul City. The results indicated that the vegetative distribution ratio in 2014 is 4.98% of the total area under study, decreased to 4.77% in 2015 and then decreased to 4.54 <italic>%</italic> in 2016, after then decreased to 3,59% in 2017,then increased to 4.39% in 2018. Land cove ... Show More

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(15)

(7)

Publication Date

Fri Jun 30 2023

Journal Name

Azerbaijan Pharmaceutical And Pharmacotherapy J

Evaluation of Nurses’ Practices and Perceived Barriers Related to Pain Assessment in Critically Ill Patients at Baghdad Teaching Hospitals

Majeed

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Introduction: Inadequate pain assessment and management is a problem in hospitalized patients that impairs their wellbeing. Intensive care unit nurses’ pain practices are affected by several barriers and enablers. Objectives: The objectives of this study were to determine the level of nurses’ practices and perceived barriers related to pain assessment in critically ill patients. Methodology: A cross-sectional design study was used. Purposive sampling technique was employed, including 100 nurses recruited from 8 intensive care units in Baghdad city, Iraq. The study was conducted from September 1st to October 20th, 2022. The pain assessment and management for critically ill patients survey was used to collect data. Descriptive sta

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(13)

(1)

Publication Date

Tue Jun 16 2020

Journal Name

Frontiers In Pharmacology

Administration of Δ9‐Tetrahydrocannabinol (THC) Post‐Staphylococcal Enterotoxin B Exposure Protects Mice From Acute Respiratory Distress Syndrome and Toxicity

Amira

Hasan

Muthanna

Narendra P.

Prakash

Mitzi

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(19)

Publication Date

Thu Feb 06 2020

Journal Name

Scientific Reports

Waste foundry sand/MgFe-layered double hydroxides composite material for efficient removal of Congo red dye from aqueous solution

Dooraid N.

Laith A.

Ayad A. H.

Nadhir

Mu

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AbstractWe aimed to obtain magnesium/iron (Mg/Fe)-layered double hydroxides (LDHs) nanoparticles-immobilized on waste foundry sand-a byproduct of the metal casting industry. XRD and FT-IR tests were applied to characterize the prepared sorbent. The results revealed that a new peak reflected LDHs nanoparticles. In addition, SEM-EDS mapping confirmed that the coating process was appropriate. Sorption tests for the interaction of this sorbent with an aqueous solution contaminated with Congo red dye revealed the efficacy of this material where the maximum adsorption capacity reached approximately 9127.08 mg/g. The pseudo-first-order and pseudo-second-order kinetic models helped to describe the sorption measure ... Show More

(172)

(110)

Publication Date

Fri Mar 10 2017

Journal Name

Superconductor Science And Technology

Conceptual designs of conduction cooled MgB2 magnets for 1.5 and 3.0 T full body MRI systems

Tanvir

Abdullah

Robert J

Laith

Charles

Robert W

Michael

David

Matthew

Xuan

Robert

Ozan

Michael

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(57)

(53)

Publication Date

Sun Oct 13 2019

Journal Name

Spe Kuwait Oil & Gas Show And Conference

Optimization of Fracture Parameters for Hydraulic Fractured Horizontal Well in a Heterogeneous Tight Reservoir: An Equivalent Homogeneous Modelling Approach

upstream oil & gas

equivalent homogeneous model

heterogeneous model

optimum number

hydraulic fracturing

simulation model

tight gas reservoir

saturation

model 1

optimization

Omar

Mofazzal

Asaad

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AbstractBuilding numerical reservoir simulation model with a view to model actual case requires enormous amount of data and information. Such modeling and simulation processes normally require lengthy time and different sets of field data and experimental tests that are usually very expensive. In addition, the availability, quality and accessibility of all necessary data are very limited, especially for the green field. The degree of complexities of such modelling increases significantly especially in the case of heterogeneous nature typically inherited in unconventional reservoirs. In this perspective, this study focuses on exploring the possibility of simplifying the numerical simulation pr ... Show More

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(23)

(15)

Publication Date

Tue Jun 01 2021

Journal Name

Swarm And Evolutionary Computation

A review of heuristics and metaheuristics for community detection in complex networks: Current usage, emerging development and future directions

Bara'a Ali

Amenah D.

Ammar A

Clara

Mayyadah

Suat

Rawaa Dawoud

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