One Parameter Composite Semigroups of Linear Bounded Operators in Strong Operator Topology of Schatten Class Cp
One Parameter Composite Semigroups of Linear Bounded Operators in Strong Operator Topology of Schatten Class Cp

Samir Kasim Hassan; Al-Taie M; Al-Malki Anam; Al-Attar Abeer; Mustafa Khaleel Ismael; Fatema Ahmed Sadeq; Radhi A .Zboon; Jehad R.Kider; Samir K .Hassan; Hussain J. M. Alalkawi; Raad H. Majid; Rawaa A. Alomairy; Luma Abdul Ghani Zghair; Hadia Kadhim J.Al-Ogili; Assifa M. Mohamad; Abbas Sheyaa Alwan; Haider L. Aneed; Assim H Yousif; Salema Sultan Salman; Abbas Hussien Miry; Abduladhem A.Ali; Mohammed Zeki Al-Faiz; Sabah N. mahmood; Khansaa Dawood Selman; Shaymaa Tareq Kadhim

Volume 29, Issue 8 , June 2011, , Page 1463-1470

https://doi.org/10.30684/ etj.29.8.2

Abstract
  For semigroups of linear bounded operators on Hilbert spaces, the problem of being in Cp , 0 Keywords  Read More ...
Behavior of Plain and High Performance Polypropylene Fiber Concrete Subjected to Elevated Temperatures
Behavior of Plain and High Performance Polypropylene Fiber Concrete Subjected to Elevated Temperatures

Luma Abdul Ghani Zghair

Volume 29, Issue 8 , June 2011, , Page 1517-1535

https://doi.org/10.30684/ etj.29.8.8

Abstract
  The aim of this work is to determine the residual compressive strength and splitting tensile strength after exposure to an elevated temperature (between100 to 500 C ◌ْ ) of plain ...  Read More ...
Strength Prediction of Polypropylene Fiber Reinforced Concrete
Strength Prediction of Polypropylene Fiber Reinforced Concrete

Najaat H. Ne; Abdulnasser M. Abbas; Rana A. Mtasher

Volume 29, Issue 2 , January 2011, , Page 305-311

https://doi.org/10.30684/etj.29.2.10

Abstract
  The main purpose of this investigation is to study the effects of polypropylene fiber on the compressive and flexural strength of normal weight concrete. Four mixes used polypropylene ...  Read More ...
Effect of Dual Reinforcement on Wear Resistance by Aluminum Compacts Reinforce by SiC, Al2O3
Effect of Dual Reinforcement on Wear Resistance by Aluminum Compacts Reinforce by SiC, Al2O3

Mohammed Saeed. Waheed; Hassan Hamed. Abed

Volume 27, Issue 13 , September 2009, , Page 423-429

https://doi.org/10.30684/etj.27.13.19

Abstract
  The producing composite materials of dual reinforcement in which the matrix material is aluminum reinforced with two types of ceramic particles : which are Alumina (50μmKeywordscomposite ...  Read More ...
Performance of Fiber Light-Weight Aggregate Concrete Exposed to Elevated Temperatures
Performance of Fiber Light-Weight Aggregate Concrete Exposed to Elevated Temperatures

Shakir A. Salih; Ali T. Jasim

Volume 27, Issue 13 , September 2009, , Page 2393-2410

https://doi.org/10.30684/etj.27.13.10

Abstract
  Two major problems arise when concrete is exposed to elevatedtemperatures. One is the deterioration in mechanical properties of concrete and the other problem is spalling of concrete. ...  Read More ...
Effect of Polypropylene Fibers on Properties of Mortar Containing Crushed Brick as Aggregate
Effect of Polypropylene Fibers on Properties of Mortar Containing Crushed Brick as Aggregate

Shakir A. Salih; Maha E. AL-Azaawee

Volume 26, Issue 12 , December 2008, , Page 1508-1523

https://doi.org/10.30684/etj.26.12.6

Abstract
  More recently there has been a great attention towards converting wastematerials by- products into useful materials as aggregate in concrete industry.It is thus aimed in this study ...  Read More ...