This the home of a collection of faculty scholarship and creative works from the Program of Mechanical Engineering at Arkansas Tech University.

If faculty members are interested in submitting publications here, please contact the site administrator at orc@atu.edu.

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Submissions from 2008

SIBS for ophthalmic and cardiovascular applications, Leonard Pinchuk, Yasushi P. Kato, Yonghua Zhou, Marcia Orozco, Richard T. Schoephoerster, Jean Marie Parel, and Joseph P. Kennedy

Medical applications of poly(styrene-block-isobutylene-block-styrene) ("SIBS"), Leonard Pinchuk, Gregory J. Wilson, James J. Barry, Richard T. Schoephoerster, Jean Marie Parel, and Joseph P. Kennedy

Large scale motions in a biosensor protein glucose oxidase: A combined approach by QENS, normal mode analysis, and molecular dynamics studies, Sujit S. Tatke, Chun K. Loong, Nicolas D'Souza, Richard T. Schoephoerster, and M. Prabhakaran

Submissions from 2007

Stented artery flow patterns and their effects on the artery wall, Nandini Duraiswamy, Richard T. Schoephoerster, Michael R. Moreno, and James E. Moore

Biomechanical evaluation of different fixation plates in medial opening upper tibial osteotomy, Irfan Esenkaya, Mesut Misirlioglu, Mehmet Halidun Kelestemur, Nurzat Elmali, and Ersin Fadillioglu

Effect of fiber orientation on the stress distribution within a leaflet of a polymer composite heart valve in the closed position, Yanran Liu, Vladimir Kasyanov, and Richard T. Schoephoerster

Submissions from 2006

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Comparison of the pull-out strengths of three different screws in pedicular screw revisions: a biomechanical study, Irfan Esenkaya, Yurdaer Denizhan, Mehmet Akif Kaygusuz, Mehmet Yetmez, and Mehmet Halidun Keleştemur

A novel polymer for potential use in a trileaflet heart valve, Siobhain L. Gallocher, Andres F. Aguirre, Vladimir Kasyanov, Leonard Pinchuk, and Richard T. Schoephoerster

Submissions from 2005

Flow induced platelet activation in prosthetic heart valves - In vitro and numerical studies, Danny Bluestein, Wei Yin, Yared Alemu, Min Zhou, Foluso Ladeinde, Richard T. Schoephoerster, and Jolyon Jesty

Spatial distribution of platelet deposition in stented arterial models under physiologic flow, Nandini Duraiswamy, Bhavani Jayachandran, James Byrne, James E. Moore, and Richard T. Schoephoerster

A study on the solid-state welding of boron-doped Ni3Al-AISI 304 stainless steel couple, Sukru Yildirim and Mehmet Halidun Kelestemur

Flow-induced platelet activation in a St. Jude mechanical heart valve, a trileaflet polymeric heart valve, and a St. Jude tissue valve, Wei Yin, Siobhain Gallocher, Leonard Pinchuk, Richard T. Schoephoerster, Jolyon Jesty, and Danny Bluestein

Submissions from 2004

The biomedical engineering partnership Program an integrated educational approach to biomedical innovation and entrepreneurship, Ofer Amit, Richard T. Schoephoerster, Alan Carsrud, and Vish Prasad

Wear behavior of boron-doped Ni3Al material at elevated temperature, Yavuz Solmaz and Mehmet Halidun Keleştemur

Submissions from 2003

Coupling of a nonlinear finite element structural method with a Navier-Stokes solver, Raymond E. Gordnier and Robert M. Fithen

Energy and the environment: An energy education course for high school teachers, John L. Krohn and Stanton C. Apple

Platelet Adhesion to Simulated Stented Surfaces, Samuel Robaina, Bhavani Jayachandran, Yong He, Andreas Frank, Michael R. Moreno, Richard T. Schoephoerster, and James E. Moore

Submissions from 2002

High Temperature Fatigue Crack Growth Behavior of Ti-6Al-4V, N. K. Arakere, T. Goswami, John L. Krohn, and N. Ramachandran

A simple and efficient error analysis for multi-step solution of the Navier-Stokes equations, Robert M. Fithen

Processing and microstructural characterization of functionally gradient Al A359/SiCp composite, R. Rodriguez-Castro and Mehmet Halidun Kelestemur

Microstructure and mechanical behavior of functionally graded Al A359/SiCp composite, R. Rodríguez-Castro, R. C. Wetherhold, and Mehmet Halidun Kelestemur

Hydrodynamic modeling of short-channel devices using an upwind flux vector splitting scheme, Wai Kay Yip, Min Shen, Ming C. Cheng, Robert M. Fithen, and Goodarz Ahmadi

Submissions from 2001

Coupling of a nonlinear finite element structural method with a navier-stokes solver, Raymond E. Gordnier and Robert M. Fithen

Effect of various atmospheres on the threshold fatigue crack growth behavior of AISI 304 stainless steel, Mehmet Halidun Keleştemur and Tarun K. Chaki

Effect of overload on the fatigue crack growth behaviour of 304 stainless steel in hydrogen, Mehmet Halidun Kelestemur and T. K. Chaki

A novel trileaflet synthetic heart valve, Richard T. Schoephoerster, Siobhain Gallocher, Leonard Pinchuk, and Vladimir A. Kasyanov

Least-squares finite element formulation for hydrodynamic modeling of semiconductor devices, Min Shen, Tongju Zhou, Ming C. Cheng, and Robert M. Fithen

Submissions from 1999

Vortex Shedding in Steady Flow Through a Model of an Arterial Stenosis and Its Relevance to Mural Platelet Deposition, Danny Bluestein, Carlos Gutierrez, Mateo Londono, and Richard T. Schoephoerster

Submissions from 1998

Four-moment hydrodynamic modelling of a submicrometre semiconductor device in a non-parabolic band structure, Liangying Guo, Ming C. Cheng, Yansheng Luo, and Robert M. Fithen

A case study of fluidized-bed combustion of wood/coal mixtures. Part B. The effect of wood moisture content, Wayne A. Helmer and Douglas D. Stokke

A case study of fluidized-bed combustion of wood/coal mixtures. Part A. The effect of wood particle size, Wayne A. Helmer, Douglas D. Stokke, and Jian Sun

Numerical study of U-tube passive anti-rolling tanks, Z. Zhong, J. M. Falzarano, and Robert M. Fithen

Submissions from 1997

Fluid mechanics of arterial stenosis: Relationship to the development of mural thrombus, Danny Bluestein, Lijun Niu, Richard T. Schoephoerster, and Mrinal K. Dewanjee

A study of the non-parabolic hydrodynamic modelling of a sub-micrometre n+-n-n+ device, Ming C. Cheng, Liangying Guo, Robert M. Fithen, and Yansheng Luo

Evaluation of global left ventricular function based on simulated flow dynamics computed from regional wall motion, Tong Ding and Richard T. Schoephoerster

Effect of platelet-surface reactivity on platelet deposition in a model of arterial stenosis, Michael D. Langlais, Mrinal K. Dewanjee, and Richard T. Schoephoerster

Vortex shedding in steady flow through an axisymmetric model of arterial stenosis and its relevance to mural platelet deposition, Richard T. Schoephoerster, Carlos Gutierrez, and Mateo Londono

Conservation of cardiovascular input energy with a rhythmically contracting aorta, Flavio B. Souza-Campos and Richard T. Schoephoerster

Submissions from 1996

Simulation of turbulent pulsatile flow past a mechanical heart valve, Danny Bluestein and Richard T. Schoephoerster

Steady flow in an aneurysm model: Correlation between fluid dynamics and blood platelet deposition, D. Bluestein, L. Niu, Richard T. Schoephoerster, and M. K. Dewanjee

Validation of a 3-D numerical model of LV ejection, Tong Ding and Richard T. Schoephoerster

Simulation of pulsatile flow past a St. Jude valve, L. Niu, D. Bluestein, and Richard T. Schoephoerster

A comparative study of characteristic-based algorithms for the Maxwell Equations, J. S. Shang and Robert M. Fithen

Effect of simulated valvular stenoticity on predicted flow area for a bileaflet valve using the gorlin equation, Flavio Souza-Campos, Adrian Del-Boca, and Richard T. Schoephoerster

Performance assessment of prosthetic heart valves using the energy index method, Flavio Souza-Campos and Richard T. Schoephoerster

Submissions from 1995

Flow in an aneurysm model: correlation between numerical simulation and blood platelet deposition, D. Bluestein, L. Niu, Richard T. Schoephoerster, and M. K. Dewanjee

Operating characteristics of a flare/oxidizer for the disposal of ammonia from an industrial refrigeration facility, Donald L. Fenton, Kirby S. Chapman, Randy D. Kelley, and Ayaz S. Khan

Combustion characteristics review of ammonia-air mixtures, Donald L. Fenton, Ayaz S. Khan, Randy D. Kelley, and Kirby S. Chapman

A simulation of three-dimensional systolic flow dynamics in a spherical ventricle: Effects of abnormal wall motion, Erick Gonzalez and Richard T. Schoephoerster

Some helpful case study examples of teaching engineering ethics, Wayne A. Helmer

Flammability limits of ammonia-air mixtures, Ayaz S. Khan, Randy D. Kelley, Kirby S. Chapman, and Donald L. Fenton

Relationship of the conscience to the teaching of engineering ethics, Paul R. Leiffer, R. William Graff, and Wayne A. Helmer

Application of digital particle image velocimetry to the study of pathological flow fields, Richard T. Schoephoerster, Lijun Niu, Tong Ding, and Danny Bluestein

Submissions from 1994

Evaluation of left ventricular function based on simulated systolic flow dynamics computed from regional wall motion, Richard T. Schoephoerster, Cesar L. Silva, and Gautam Ray

A comparative study of numerical algorithms for computational electromagnetics, J. S. Shang and Robert M. Fithen

Performance assessment of prosthetic heart valves using the energy index method, Flavio Souza Campos and Richard T. Schoephoerster

Submissions from 1993

Central ejection region (CER) coefficient for the evaluation of left ventricular function, Richard T. Schoephoerster and Erick A. Gonzalez

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Effects of local geometry and fluid dynamics on regional platelet deposition on artificial surfaces, Richard T. Schoephoerster, Finn Oynes, German Nunez, Monsoor Kapadvanjwala, and Mrinal K. Dewanjee

Finite analytic model for left ventricular systolic flow dynamics, Richard T. Schoephoerster, Cesar L. Silva, and Gautam Ray

Submissions from 1992

Adaptive, multi-level numerical scheme for the solution of the Navier-Stokes equations, Robert M. Fithen and J. N. Reddy

Numerical simulations of diastolic flow patterns in a model left ventricle with varying degrees of mitral stenosis, Richard T. Schoephoerster and Erick A. Gonzalez

Submissions from 1991

Velocity and turbulence measurements past mitrial valve prostheses in a model left ventricle, Richard T. Schoephoerster and Krishnan B. Chandran

Assessment of left ventricular flow dynamics using the finite analytic method: potential for clinical applications, Richard T. Schoephoerster, Cesar Silva, and Gautam Ray

Computer simulation of a vapor-compression ice generator with a direct-contact evaporator, S. Subbaiyer, T. M. Andhole, and Wayne A. Helmer

Submissions from 1990

Numerical simulation of blood flow past mitral valve prostheses in a simplified two-dimensional left ventricle, Richard T. Schoephoerster and K. B. Chandran

A two dimensional finite analytic method to simulate flow patterns due to wall motion abnormality during left ventricular ejection, Richard T. Schoephoerster and Gautam Ray

Submissions from 1989

In Vitro Comparison of Velocity Profiles and Turbulent Shear Distal to Polyurethane Trileaflet and Pericardial Prosthetic Valves, K. B. Chandran, Reza Fatemi, Richard Schoephoerster, D. Wurzel, G. Hansen, G. Pantalos, L. S. Yu, and W. J. Kolff

Effect of prosthetic mitral valve geometry and orientation on flow dynamics in a model human left ventricle, K. B. Chandran, Richard T. Schoephoerster, and K. C. Dellsperger

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Hemodynamic comparisons of polyurethane trileaflet and bioprosthetic heart valves, K. B. Chandran, Richard T. Schoephoerster, D. Wurzel, G. Hansen, L. S. Yu, G. Pantalos, and W. J. Kolff

Effect of systolic flow rate on the prediction of effective prosthetic valve orifice area, Richard T. Schoephoerster and Krishnan B. Chandran

Prediction of stenotic valve orifice area: An in vitro study on a bioprosthesis, Richard T. Schoephoerster, Thomas L. Yearwood, and Krishnan B. Chandran

Submissions from 1988

An in vitro experimental comparison of Edwards-Duromedics and St. Jude bileaflet heart valve prostheses, K. B. Chandran, Richard T. Schoephoerster, R. Fatemi, and E. L. Dove

Hemodynamic comparison of polyurethane trileaflet and tissue heart valve prostheses, K. B. Chandran, Richard T. Schoephoerster, D. Wurzel, G. Hansen, L. S. Yu, G. Pantalos, and W. J. Kolff

Finite-element analysis of conjugate heat transfer in axisymmetric pipe flows, Robert M. Fithen and N. K. Anand

Effect of wood-to-coal fuel percent and underfire air on sulfur emissions and percent fuel energy loss during cofiring of wood and coal, Wayne A. Helmer, K. Caraker, E. C. Workman, and J. Phelps

Submissions from 1987

Design and Tests of a Solar- Dehumidifier Kiln with Heat Storage and Heat Recovery Systems., Peter Y.S. Chen and Wayne A. Helmer

New Method of Experimentally Determining Heat Transfer Coefficients in Direct-Contact Bubble Evaporation., Wayne A. Helmer, S. Nagarjan, and M. Rane

Submissions from 1986

Dependence of tissue valve leaflet motion on the viscosity of blood analogue fluid, K. B. Chandran, R. Fatemi, and Richard T. Schoephoerster

General Collector Sizing Method for Solar Kilns., Wayne A. Helmer

Submissions from 1985

A survey of polar and non-polar lipids of mouse organs, Richard T. Schoephoerster, Philip W. Wertz, Kathi C. Madison, and Donald T. Downing

Submissions from 1984

Secondary coal recovery from slurry ponds utilizing solar drying, Wayne A. Helmer and F. Hasheminejad

Submissions from 1982

Principles of Dehumidification Lumber Drying., Peter Y.S. Chen and Wayne A. Helmer

Experimental Solar-Dehumidifier Kiln for Dying Lumber., Peter Y.S. Chen, Wayne A. Helmer, Howard N. Rosen, and Dennis J. Barton

A computer model to simulate solar and solar—dehumidification lumber drying, Wayne A. Helmer, P. Y.S. Chen, and M. B. vaidya

Submissions from 1981

Experimental Studies of Solar and Solar-Dehumidification Lumber Drying., P. Y.S. Chen, Wayne A. Helmer, and H. N. Rosen

Submissions from 1980

Pilot Plant Studies of Solar and Solar-Dehumidification Lumber Drying., P. Y.S. Chen, Wayne A. Helmer, and H. N. Rosen

Solar Drying of Coal Wastes from Slurry Ponds., Wayne A. Helmer and Ahmed Abbas

Theoretical Model for Solar-Dehumidification Drying of Wood., Wayne A. Helmer, P. Y.S. Chen, H. N. Rosen, and S. W. Wang

Submissions from 1976

Experimental Heat and Mass Transfer Data for Condensing Flow in a Parallel Plate Heat Exchanger., David R. Tree and Wayne A. Helmer