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Positron annihilation and ion beam analysis of ion-bombardment-induced hydrogen release and oxidation of ultra high molecular weight polyethylene
(
Elsevier
, 2007 , Article)
Ultra high molecular weight polyethylene was bombarded with He+ and Ar+ ions to fluences ranging from 1013 to 2×1016 ions/cm2. Rutherford backscattering and nuclear reaction analysis were applied to study mechanism of ...
The effect of gamma irradiation and shelf aging in air on the oxidation of ultra-high molecular weight polyethylene
(
Elsevier
, 2006 , Article)
This study has investigated the effect of shelf aging, for up to one year in air, on the properties of gamma-irradiated ultra-high molecular weight polyethylene (UHMWPE). A variety of techniques were used to characterize ...
Three-body effects in the annihilation of positrons on molecules
(
APS
, 2002 , Article)
The three body effects in the annihilation of positrons on molecules were discussed. The positron annihilation in ethylene gas at room temperature and at densities below one amagat, showed that the mean free positron ...
DPSM technique for ultrasonic field modelling near fluid–solid interface
(
Elsevier
, 2007 , Article)
Distributed point source method (DPSM) is gradually gaining popularity in the field of non-destructive evaluation (NDE). DPSM is a semi-analytical technique that can be used to calculate the ultrasonic fields produced by ...
On certain rough integral operators and extrapolation
(
Victoria university
, 2009 , Article)
In this paper, we obtain sharp Lp estimates of two classes of maximal operators related to rough singular integrals and Marcinkiewicz integrals. These estimates will be used to obtain similar estimates for the related ...
On rough maximal operators and Marcinkiewicz integrals along submanifolds
(2009 , Article)
We investigate the LP boundedness for a class of parametric Marcinkiewicz integral operators associated to submanifolds and a class of related maximal operators under the L(log L)α(Sn-1) condition on the kernel functions. ...
On the Lp boundedness of rough parametric Marcinkiewicz functions
(
Victoria University of Technology
, 2007 , Article)
In this paper, we study the Lp boundedness of a class of parametric Marcinkiewicz integral operators with rough kernels in L(log + L)(Sn-1). Our result in this paper solves an open problem left by the authors of ([6]). © ...
On certain rough maximal operators and singular integrals
(2007 , Article)
We study the L p mapping properties of a class of singular integral operators T p,Ω,h related to polynomial mappings. We prove that this class of singular operators and some of its related maximal operators are bounded on ...
The determinants of capital structure: The case of long-term debt constraint for Jordanian firms
(
Virtus Interpress
, 2008 , Article)
This paper contributes to the capital structure literature by investigating the determinants of capital structure of Jordanian companies with the constraint of inadequate long-term debt as their source of financing and ...
Poisonous plants contaminating edible ones and toxic substances in plant foods IV. Phytochemistry and toxicity of lolium temulentum
(
Taylor & Francis
, 2008 , Article)
Different procedures were carried out for the preparation and separation of the total alkaloids of Lolium temulentum. Loline has been identified as the major pyrrolizidine alkaloid of the seeds. The toxicity of the alcoholic ...