Synthesis, inhibition effects and quantum chemical studies of a novel coumarin derivative on the corrosion of mild steel in a hydrochloric acid solution

Ayad Z. Mohamed

Khalida F. Al‑Azawi1

Shaimaa B. Al‑Baghdadi

Chemistry Central Journal

10

23

2.55

The acid corrosion inhibition process of mild steel in 1 M HCl by 4-[(2-amino-1, 3, 4-thiadiazol-5-yl) methoxy]coumarin (ATC), has been investigated using weight loss technique and scanning electron microscopy SEM). ATC was synthesized, and its chemical structure was elucidated and confirmed using spectroscopic techniques

Improvement of the Fatigue Resistance and Increase Its Life of Specimens of Naval Brass Alloy Using Laser Shock Wave Processing

د.عبدالهادي كاظم

Journal of Nanoscience and Technology

1

2

69–72

1.556

Enhancement of Solar Cell Performance Based On Porous Silicon

د.عبدالهادي كاظم

Journal of Nanoscience and Technology

2

2

73-75

1.556

Design and Evaluation of Immersed Wideband Non-polarizing Beam Splitter Using ZEMAX Program and Needle/ Tunneling Method

Ali H. Al-Hamdani

Hayfa  G. Rashid

Hussein T. Hashim

International Journal of Scientific & Engineering Research

4

7

3.8

Enhancing a Trombe wall charging and discharging processes by adding nano-Al2O3 to phase change materials

Miqdam T Chaichan

Ali H. Al-Hamdani

Adeeb M Kasem

international journal of science and Engineering research,

3

7

3.8

Theoretical Studies on Electrophilic Aromatic

Hasan R. Obayes

Khalida F. Al.Azawi

Ali H. Al-Hamadani

ORIENTAL JOURNAL OF CHEMISTRY

1

32

0.479

Design  and Evaluation of C-Band Non-Polarizing Beam Splitter Plate using ZEMAX

Ali H. Al-Hamadani

Hayfa  G. Rashid

Hussein T. Hashim

Wulfenia

2

23

0.267

Effect of angle of orientation of flat mirror concentrator on solar panel system output

Ali H. Al-Hamadani

Faten Sh. Zain Al-Abdin

Jiinnan H. Ali

IOSR Journal of Computer Engineering

1

18

1.213

Enhancement of solar cell performance based on porous silicon

Ali H. Al-Hamadani

M. Qasim

K.S. Rida

Journal of Nanoscience and Technology

2

2

1.556

synthesis of aluminum and titanium oxides nanoparticles via sol-gel method: optimization for the minimum size

احمد عبد الامير حسين

كاظم عبد حبيتر

Journal of Nanoscience and Technology

2

1

37-39

1.556

Al2O3 and TiO2 nanoparticles were synthesized using sol-gel method. The structures of Al2O3 and TiO2 nanoparticles were investigated using X-ray diffraction (XRD) study. The morphology of nanoparticles was investigated by scanning electron microscopy (SEM) analysis. The FE-SEM images showed that most of the nanoparticles obtained for Al2O3 and TiO2 nanoparticles have spherical shape with a particle size of 14 nm and 43 nm for Al2O3 and TiO2 nanoparticles respectively. The absorption spectra of Al2O3 and TiO2 nanoparticles suspended in deionized water were recorded at room temperature using UV-visible spectroscopy. The absorption spectra show a strong peak at 344 nm and 483 nm for Al2O3 and TiO2 respectively. The results on absorption spectra are in good agreement with those investigated by XRD which confirmed the formation of Al2O3 and TiO2

ultraviolet photodetector based on TIO2 nanopracticles/porous siliconhetrojunction

عدي نايف محسن

زهراء جميل

كاظم عبد حبيتر

optik

127

2806-2810

0.742

TiO2nanoparticles (TiO2NPs) were deposited on porous silicon (PS) by drop casting technique afterprepared TiO2NPs by pulsed laser ablation in liquid (PLAL) and PS by photoelectrochemical etching(PECE). The structural and morphological measurements were investigated the formation anatase phaseTiO2NPs with size of 17–101 nm and mesoporous silicon at 14.18 nm average pore diameter. Reflectivityof PS was decreased after coated with TiO2NPs leading to much light trap. As a result, successful UVdetector synthesis with 0.045 A/W resposivity and 1.9 × 1012W−1cm Hz1/2specific detectivity.

عبد الهادي كاظم جدران

ورود مهند شاكر

This study aims to reduce the corrosion that occurring in mild steel (st-37). Laser has been used as inhibitor to reduce corrosion rate by using Laser shock peening (LSP) technique for st-37 submerged in hydrochloric acid with concentration of 1 M and the immersion time of 30 minutes at room temperature. The corrosion rate was evaluated by two method; weight loss method and polarization method. The results were observed that the values of corrosion rate are decreased after using the laser shock peening from 7.7210 mm/y to 1.0716 mm/y

علي حميد عبد الهادي

وائل ياس ناصر

مروة صباح محسن

ايفان طارق سليم

Synthesis of Aluminum and Titanium Oxides Nanoparticles via Sol-Gel Method: Optimization for the Minimum Size

كاظم عبد حبيتر

Journal of Nanoscience and Technology

Al2O3 and TiO2 nanoparticles were synthesized using sol-gel method. The structures of Al2O3 and TiO2 nanoparticles were investigated using X-ray diffraction (XRD) study. The morphology of nanoparticles was investigated by scanning electron microscopy (SEM) analysis. The FE-SEM images showed that most of the nanoparticles obtained for Al2O3 and TiO2 nanoparticles have spherical shape with a particle size of 14 nm and 43 nm for Al2O3 and TiO2 nanoparticles respectively. The absorption spectra of Al2O3 and TiO2 nanoparticles suspended in deionized water were recorded at room temperature using UV-visible spectroscopy. The absorption spectra show a strong peak at 344 nm and 483 nm for Al2O3 and TiO2 respectively. The results on absorption spectra are in good agreement with those investigated by XRD which confirmed the formation of Al2O3 and TiO2.

Studying the effect of simultaneous variation in both of the bias current and feedback strength on the output dynamics of semiconductor laser with optoelectronic feedback

قيس عبد الستار

حسن غسان عبد

We report numerically the generation of spiking in semiconductor laser SL) with an optoelectronic feedback. The evolution of nonlinear dynamics of semiconductor lasers with optoelectronic feedback by changing together two of the control system parameters (i.e. the variation of the dc bias current of SL and the feedback strength simultaneously) is investigated. In addition to the period-doubling scenario to chaos which shows the transition of nonlinear dynamics from periodic to quasi-periodic, then to chaotic state and eventually to Mixed-Mode Oscillations (MMOs) is shown, this paper demonstrated that the optimal selection of system parameters can eliminate the generated chaos or exploiting the chaos benefits.

Preparation and Characterization Study of ZnS Thin Films with Different Substrate Temperatures

Zinc sulfide (ZnS) thin films were deposited on a glass and n-type Silicon wafer substrates at temperature range from 50 - 200 Co using pulsed laser deposition (PLD) technique. The structural, morphological, optical and electrical properties of the films have been investigated. The XRD analyses indicate that ZnS films have zinc blende structures with plane (111 )preferential orientation, whereas the diffraction patterns sharpen with the increase in substrate temperatures. The Atomic Force Microscopy (AFM) Images shows the particle size and surface roughness of the deposited ZnS thin film at substrate temperature 50 and 150  Co were about