Biswajit De^*, Rajsekhar Panua

Frontiers in Heat and Mass Transfer, Vol.5, pp. 1-6, 2014, DOI:10.5098/hmt.5.7

Abstract This paper presents a pre-mixed combustion model for diesel and Jatropha oil blends combustion studies. Jatropha oil blends are considered as a mixture of diesel and Jatropha oil. CFD package, FLUENT 6.3 is used for modeling the complex combustion phenomenon in compression ignition engine. The experiments are carried out on a single cylinder, four strokes, water cooled direct injection compression ignition engine at compression ratio of 17.5 at full load condition at constant speed of 1500 rpm fuelled with diesel and jatropha oil blends with diesel. The numerical model is solved by considering pressure based,… More >

Vincenzo Gulizzi^1,2, Piervincenzo Rizzo^2,3, Alberto Milazzo⁴

Structural Durability & Health Monitoring, Vol.10, No.1, pp. 19-54, 2014, DOI:10.3970/sdhm.2014.010.019

Abstract The electromechanical impedance (EMI) method is one of the many nondestructive evaluation approaches proposed for the health monitoring of aerospace, civil, and mechanical structures. The method consists of attaching or embedding one or more wafer-type piezoelectric transducers (PZTs) to the system of interest, the host structure, and measuring certain electrical characteristics of the transducers. As these characteristics are also related to the impedance of the host structure, they can be used to infer the mechanical properties of the monitored structure. In the study presented in this paper, we utilize the EMI to monitor the quality… More >

Priya N. Werahera^1,2, E. David Crawford³, Francisco G. La Rosa¹, Kathleen C. Torkko¹, Beth Schulte⁴, Holly T. Sullivan¹, Adrie van Bokhoven¹, M. Scott Lucia¹, Fernando J. Kim⁴

Canadian Journal of Urology, Vol.20, No.5, pp. 6897-6906, 2013

Abstract Introduction: Prostate biopsies are usually taken from the peripheral rather than anterior region of the prostate. Consequently, tumors originating from the anterior apical region and transition zones may be under-sampled. We examined whether addition of transrectal anterior biopsy (TAB) would improve efficacy of prostate biopsies.
Materials and methods: Simulations of TAB and sextant biopsy (SB) were performed using computer models of 86 autopsy prostates (AP) and 40 radical prostatectomy (RP) specimens. TAB was obtained bilaterally from apex, mid, and base regions by advancing the biopsy needle 5 mm-35 mm beyond the prostatic capsule. A phase I clinical… More >

A. Merabtine¹, S. Mokraoui¹, R. Benelmir¹, N. Laraqi²

FDMP-Fluid Dynamics & Materials Processing, Vol.8, No.2, pp. 215-240, 2012, DOI:10.3970/fdmp.2012.008.215

Abstract Modeling of the thermal behavior of buildings needs effective strategies of analysis and tools. This is particularly true when conduction of heat through walls and/or slabs has to be properly taken into account. This article is concerned with a new modeling strategy for solving the transient heat conduction equation in a finite medium (with extensive background application to the different elements of a building structure). The developed approach is based on the Bond Graph technique, a graphical modeling language which is particularly suitable to the treatment of problems involving energy transfer. With this model, two More >

George Rodrigues^1,2, Glenn Bauman¹, Varagur Venkatesan¹, Belal Ahmad¹, Michael Lock¹, Tracy Sexton¹, David D’Souza¹, Larry Stitt², Somaya Eid^1,2

Canadian Journal of Urology, Vol.18, No.4, pp. 5802-5810, 2011

Abstract Introduction: A 29-item prostate cancer radiotherapy (PCRT) questionnaire with genitourinary (GU), gastrointestinal (GI), and sexual (S) domains has been previously validated for the assessment of late toxicity health-related quality of life (HRQoL) effects. The study objective was to cross-validate the PCRT domains versus the expanded prostate cancer index composite (EPIC) questionnaire urinary (U), bowel (B), hormonal (H), and S subscales.
Methods and materials: A single-institution cross-sectional PCRT patient cohort was surveyed. Descriptive and intra- and inter-class correlation coefficient statistics for the various EPIC and PCRT HRQoL domain scores were generated. Univariable and multivariable Cox and logistic regressions… More >

Lin LU, Bin TENG, Bing CHEN

The International Conference on Computational & Experimental Engineering and Sciences, Vol.19, No.4, pp. 133-134, 2011, DOI:10.3970/icces.2011.019.133

Abstract This work describes the numerical implements of a two-dimensional viscous numerical wave flume, which is based on the Finite Element Method (FEM), Computational lagrangian-Eulerian Advection Remap Volume of Fluid Method (CLEAR-VOF), internal wave generation and artificial wave damping technique. Owning to the inherent consistence of CLEAR-VOF with FEM, the present numerical model allows the simulations of wave propagation and interaction with structures to be simulated with irregular mesh partition. The present numerical wave flume is validated by several applications in comparisons with available experimental data and numerical results, including the problems of standing wave trains More >

Sharon E. Straus¹, Jayna Holroyd-Leduc², Michael Scott Orr³

Canadian Journal of Urology, Vol.17, No.3, pp. 5195-5199, 2010

Abstract Objective: To investigate whether there is any significant difference between the electronic and the paper-based version of Urogenital Distress Inventory-6 questionnaire (UDI-6) and the Incontinence Impact Questionnaire-7 questionnaire (IIQ-7).
Materials and methods: An electronic questionnaire and clinical tool was developed using a combination of open source questionnaire software and custom programming that closely replicated the paper version of the UDI-6 and IIQ-7 questionnaires. Ethics were reviewed and approved by the University Health Network of Toronto. The study randomized participants from the Urinary Incontinence Clinic to either complete the paper-and-pen version of the questionnaires or the electronic version… More >

R. G. Cuntze¹

Structural Durability & Health Monitoring, Vol.6, No.3&4, pp. 123-160, 2010, DOI:10.3970/sdhm.2010.006.123

Abstract The paper deals with the validation of 2D and 3D failure conditions of unidirectional (UD) composites composed of endless fibres and thermoset matrices. The generation of these failure conditions is shortly described and then applied to test cases of the World-Wide-Failure-Exercises WWFE-I and II, organized by Qinetic in the past 20 years. The derivation of the conditions for the brittle fracture failure experiencing UD lamina material was based on the author's so-called Failure Mode Concept (FMC) which basically builds up on the hypotheses of Beltrami and Mohr-Coulomb. The generally applicable FMC is applied here to… More >

I. Verpoest^1,2, S.V. Lomov¹

The International Conference on Computational & Experimental Engineering and Sciences, Vol.13, No.4, pp. 73-74, 2009, DOI:10.3970/icces.2009.013.073

Abstract The paper will first introduce the general approach developed at the Katholieke Universiteit Leuven for modeling the internal structure of textiles and for prediction of the mechanical properties of textile based composites.
Then, the results of experimental observations of damage processes during tensile quasi-static and fatigue loading for carbon/epoxy textile composites will be presented, more specifically for (1) woven fabrics; (2) non-crimp fabrics (NCF); (3) structurally stitched NCF. The test methodology includes, apart from the “normal” tensile testing, registration of acoustic emission and full-field measurements of strains on the surface of the sample. The damage… More >

G. Narbona-Reina¹, J.D.D. Zabsonré², E.D. Fernández-Nieto¹, D. Bresch³

CMES-Computer Modeling in Engineering & Sciences, Vol.43, No.1, pp. 27-72, 2009, DOI:10.3970/cmes.2009.043.027

Abstract In this work we present a new two-dimensional bilayer Shallow-Water model including viscosity and friction effects on the bottom and interface level. It is obtained following [Gerbeau and Perthame (2001)] from an asymptotic analysis of non-dimensional and incompressible Navier-Stokes equations with hydrostatic approximation. In order to obtain the viscosity effects into the model we must have into account a second order approximation. To evaluate this model we perform two numerical tests consisting of an internal dam-break problem for both, one and two dimensional cases. In the first one we make a comparison between the model More >