Fatigue Damage Accumulation Behavior of 2024 Al-Alloy Under The Effect of Shot Pening Tim
Fatigue Damage Accumulation Behavior of 2024 Al-Alloy Under The Effect of Shot Pening Tim
Volume 25, Issue 5 , July 2007, Page 159-169

https://doi.org/10.30684/etj.25.5.1

Abstract
  Fatigue damage accumulation behavior of 2024 Al-alloy has been investigated  under the effect of varying the time of shot peening. Damage accumulation  from low-high and from ...  Read More ...
Adopting Small Signal Model for the Equivalent Circuit Instrumentation of a Multi-QuantumWells Semiconductor Laser
Adopting Small Signal Model for the Equivalent Circuit Instrumentation of a Multi-QuantumWells Semiconductor Laser
Volume 25, Issue 5 , July 2007, Page 170-178

https://doi.org/10.30684/etj.25.5.2

Abstract
  In this study, results of an analysis for the MQW semiconductor laser performance are presented. This analysis considers the steady-state condition and small signal modeling to introduce ...  Read More ...
An Investigation of Elastic Buckling for Perforated Plates In Aircraft Structure
An Investigation of Elastic Buckling for Perforated Plates In Aircraft Structure
Volume 25, Issue 5 , July 2007, Page 179-197

https://doi.org/10.30684/etj.25.5.3

Abstract
  The present work performs mechanical buckling analyses on square and rectangular plates with central cutouts under uniaxial compressive load. The cutouts were either circular or square ...  Read More ...
دراسة تأثير الحجم الحبيبي للدقائق و درجة حرارة التشكيل على الخواص الميكانيكية للمواد المركبة ذات الأساس من البوليمر
دراسة تأثير الحجم الحبيبي للدقائق و درجة حرارة التشكيل على الخواص الميكانيكية للمواد المركبة ذات الأساس من البوليمر
Volume 25, Issue 5 , July 2007, Page 198-206

https://doi.org/10.30684/etj.25.5.4

Abstract
  This research deals with the study of the effect of adding pure aluminum powder of different sizes (106μm, 250μm,1-2mm)to novolac materials. This has been achieved by hot pressing ...  Read More ...
مساهمة في دراسة العلاقة بين التداعي والانتفاخ مع اجهادات مص التربة
مساهمة في دراسة العلاقة بين التداعي والانتفاخ مع اجهادات مص التربة
Volume 25, Issue 5 , July 2007, Page 207-224

https://doi.org/10.30684/etj.25.5.5

Abstract
  This research aims to study the role of soil suction and clay minerals on volumetric changes of a collapsible soil selected from Hawy Al-Kanissa area in Mosul city. The effect of low ...  Read More ...
ﺇﺩﺍﺭﺓ ﻭﻤﻌﺎﻟﺠﺔ ﺍﻟﻨﻔﺎﻴﺎﺕ ﺍﻟﺼﻠﺒﺔ ﻓﻲ ﺒﻌﺽ ﻤﺴﺘﺸﻔﻴﺎﺕ ﻤﺩﻴﻨﺔ
ﺇﺩﺍﺭﺓ ﻭﻤﻌﺎﻟﺠﺔ ﺍﻟﻨﻔﺎﻴﺎﺕ ﺍﻟﺼﻠﺒﺔ ﻓﻲ ﺒﻌﺽ ﻤﺴﺘﺸﻔﻴﺎﺕ ﻤﺩﻴﻨﺔ
Volume 25, Issue 5 , July 2007, Page 225-246

https://doi.org/10.30684/etj.25.5.6

Abstract
  Hospital solid waste management is one of the most            neglected parts of the managerial process in Baghdad. This  research has been done to ...  Read More ...
Image Denoising Using Hybrid Transforms
Image Denoising Using Hybrid Transforms

Walid Amin Mahmoud; Raghad Aladdin Jassim

Volume 25, Issue 5 , July 2007, Page 669-682

https://doi.org/10.30684/etj.25.5.7

Abstract
  In this paper a new family of transformation for image denoising ispresented, Multiridgelet and Walidlet transforms, which have been proposedas alternatives to Discrete Wavelet and ...  Read More ...
Measurement of Thermooptic Coefficient in Lead Sulfide Using Laser Single-Beam Scanning Technique
Measurement of Thermooptic Coefficient in Lead Sulfide Using Laser Single-Beam Scanning Technique

Ban A.M. Bader; Oday A. Hamadi; K. Yousif Afnan

Volume 25, Issue 5 , July 2007, Page 683-689

https://doi.org/10.30684/etj.25.5.8

Abstract
  In this work, the single beam scanning technique was employed to expressthe nonlinear interaction between laser radiation and semiconductor material(lead sulfide) as well as to determine ...  Read More ...
Study of Electrical Properties of p-PbSe/p-Si Heterojunction
Study of Electrical Properties of p-PbSe/p-Si Heterojunction

Uday Muhsin Nayef

Volume 25, Issue 5 , July 2007, Page 690-695

https://doi.org/10.30684/etj.25.5.9

Abstract
  Electrical properties of p-PbSe/p-Si heterojunction detector have beeninvestigated. The electrical properties under dark condition show a rectifyingbehaviour with low rectification ...  Read More ...
Photonic Devices Based on Porous Silicon Layers
Photonic Devices Based on Porous Silicon Layers

Uday Muhsin Nayef

Volume 25, Issue 5 , July 2007, Page 696-701

https://doi.org/10.30684/etj.25.5.10

Abstract
  The optoelectronic properties of (Al/c-Si) and sandwich structure type(Al/PS/c-Si/Al) were reported. The nanostructure porous silicon is obtained byphotochemical etching without applying ...  Read More ...