David Bark Email & Phone Number

St. Louis, MO, US

St Louis, Missouri, United States

Fort Collins, Colorado

Fort Collins, CO

Melbourne, Australia

o Developed intravital mouse particle imaging velocimetry based on red blood cell motion to determine flow rates and shear rates for a forming thrombotic environmento Characterized the fragility of procoagulant platelets and related the fragility to the platelet’s role in leukocyte aggregate formationo Utilized super-resolution microscopy, specifically SIM.

o Combined a 1D model of flow through a 56 artery vascular tree with a boundary condition consisting of distal branches in a 0D model of metabolic-dependent vasomodulation to study the cranial regulation of flow through the Circle of Willis.

o Mapping of mechanical environment during thrombus growth (blood clot) until full vessel occlusion, based on computational fluid dynamic analysis of a in vitro system o Created image processing technique for edge detection of a ambiguous boundary in a axisymmetric tube with validation techniques based on measured flow parameters o Designed prosthetic.

o Conducted recitation sections and delivered lectures to BMED 3400 "Introduction to Biomechanics"

o Developed dynamic model consisting of fluid and structural forces for optimization of a atherectomy device o Discovered device dynamic phenomenon that reduced device efficiency o Designed, prototyped, and validated atherectomy device modifications for proof of concept o Assembled invention disclosures

o Decreased man hours on arduous verification testing by 80% through automated test system prototype development o Integrated electrical, pneumatic, and hydrodynamic systems o Designed and machined customized components

Technology Ventureso Developed a medical device startup company computer simulation as a teaching tool for ME 6789

o Conducted computational fluid dynamic (CFD) analyses on fuel control valve systems o Established a statistical methodology for optimizing product design o Diagnosed a stability problem that caused product failure in verification testing with a laminar to turbulent flow transition caused by variations in manufactured components

o Implemented statistical methodology for validation of computational models utilizing sensitivity analyses and Monte Carlo methods with multivariate comparisons o Analyzed system stability for fuel control subsystems o Performed structural stress analysis through finite element analysis (FEA) on valve assemblies

o Validation of weld process to implement new material usage, resulting in possible $14 million savings over 4 years o Performed Quality Function Deployment techniques for determination of weld process controls o Implemented Design of Experiments methodology for parameter optimization to maximize weld strength o Evaluation of welds using scanning electron.

o Performed FEA on titanium plate used for analyzing bone growth based on strain variation

o Wrote MATLAB program to optimize material selection while minimizing crack propagation propensity o Conducted FEA involving stress and vibration analysis on fuel control valve assemblies o Designed accelerated product life test for seals o Created fault trees based on failure mode and effects analyses for reliability

o Organized bench test and specification correlation for product line transfer between plants

o Developed Operating Instructions for Plant Machinery

Ph.D., Bioengineering And Mechanical Engineering

o Advisor: David N. Ku o Research Interests: thrombosis; computational modeling; platelet activation and adhesion; biofluid mechanics.

M.S, Mechanical Eng; Fluid Mechanics

Advisor: David N. Ku; Minor area: Controls o Thesis: Mechanistic numerical study of thrombus growth

B.S., Mechanical Engineering W/ Minor In Biomedical Engineering