1389-1286/$ see front matter 2013 Elsevier B.V. All rights reserved. http://dx.doi.org/10.1016/j.comnet.2013.08.005 ⇑ Corresponding author. Tel.: +852 62134272. E-mail addresses: [email protected] (P. Zhou), csxluo@ comp.polyu.edu.hk (X. Luo), [email protected] (A. Chen), csrchang@ comp.polyu.edu.hk (R.K.C. Chang). 1 This work was done when the co-author was with The Hong Kong Po...

background evaluation of operational risk is a consequential goal in perioperative management of patients in cardiac surgery. preoperative total lymphocyte count (ptlc) is a prognostic criterion of adverse major cardiovascular outcomes. objectives the purpose of this study was to investigate the prognostic value of ptlc as an independent predictor of postoperative morbidity and mortality in car...

Several traditional stopping criteria in Genetic Algorithms (GAs) are applied to the optimization process of a typical laminated composite plate. The results show that neither of the criteria of the type of statistical parameters, nor those of the kinds of theoretical models performs satisfactorily in determining the interruption point for the GA process. Here, considering the configuration of ...

Three-dimensional transient deformations of a laminate comprised of several unidirectional fiber reinforced layers perfectly bonded to each other and subjected to a blast load are analyzed by the finite element method with an in-house developed, verified and fully validated code with rate-dependent damage evolution equations for anisotropic bodies. The continuum damage mechanics approach employ...

The purpose of this work aims to assess the failure an open-hole composite laminate subjected tensile loading, using different progressive damage approaches. Within Abaqus, a user-defined material subroutine (UMAT) was developed and implemented by applying combination Puck’s criterion gradual degradation model. In addition, integrated model in Abaqus based on Hashin criteria coupled with contin...

OBJECTIVES To determine risk factors associated with ventilator dependence in patients with ventilator-associated pneumonia (VAP). STUDY DESIGN A retrospective study was conducted at Chang Gung Memorial Hospital, Kaohsiung, from January 1, 2007 to January 31, 2008. METHODS This study evaluated 163 adult patients (aged ≥ 18 years). Eligibility was evaluated according to the criterion for VAP...

Advanced composites are not without a trade-off. Their increased designability brings an increase in the complexity of their internal geometry and, as a result, possible modes of failure. When two or more isotropic materials are combined in a composite, the isotropic failure modes may also combine. In a laminate, matrix delamination, cracking and crazing, and voids and porosity, will often comb...

The purpose of the present study was to evaluate how ultraviolet light (UV) irradiation using an ordinary UV sterilizer would affect the bonding of experimental composite resins to an autopolymerizing acrylic resin. To this end, three composite resins and one unfilled resin--of which the compositions were similar to commercial composite resin artificial teeth--were prepared as repair composites...

increased number of adult patients requesting orthodontic treatment result in bonding bracket to ceramic restorations more than before. the aim of this study was to evaluate and compare the shear bond strength of orthodontic brackets bonded to two types of ceramic bases with conventional orthodontic bonding resin and a new nano-filled composite resin.twenty four feldespathic porcelain and 24 li...

The present paper investigates the advantages of a new class of composite grid structures over conventional grids. Thus far, a known grid structure such as orthogrid or isogrid has been used as an orthotropic layer with at most in-plane anisotropy. The present laminated grid is composed of various numbers of thin composite grid layers. The stiffness of the structure can be adjusted by choosing ...