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ROMAN N. TUNKEL
(resume, short version)
Arlington, MA

E-mail: tunkelr@verizon.net
www.geocities.com/ronatu

FIELD OF EXPERTISE:

Design, prototyping, and data analysis/modeling of medical devices.

Simulation of electro-mechanical, pneumatic and hydraulic dynamic processes.

Actuation for active control and feedback control systems design.

Finite element analysis method and computational mechanics.

Methods of experimental simulation (design of experiments) and methods of optimization.

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EXPERIENCE

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10/2004-
-02/2007

Sr. R&D Mechanical Engineer
Boston Scientific Company, Watertown, MA

Duties included analysis, modeling & development of single use medical devices, proof of new concept, managing of projects, as well as interaction with customers, vendors and suppliers.

Conduct research and development of single use non intrusive medical device for variety of medical application (diagnosis and treatment of gastrointestinal disease states in conjunction with Endoscopic techniques and instruments). Utilizing Pro-E, SolidWorks, FEA MES ALGOR, Mathcad, Matlab etc.
Identification of new opportunities, based on field research; exposure to current and emerging clinical procedure and device technologies. Contribute and provide technical recommendations, and solutions to the product subsystems teams.
Conduct research and investigating of interaction of flexible device with human torso model including: research, analysis, design of 3D Human Torso Model; design & development of Wet Lab Human Colon Model with multi-channel data acquisition system; measuring and collecting data of doctor / model interaction during simulation of procedure. This work did receive 2005 Technical Excellence Award for "Colonoscope Wet Lab Colon Model";
Perform analysis, modeling of hydraulic and mechanical systems supported by the test data to quantify design parameters as required to support the commercialization of product specifications. Involvement included Fluidic Analysis, R&D lab and Wet lab Tests, comparison product specs, redesign recommendations (utilizing Mathcad, Matlab, Simulink, Excel, DAS software etc.).
Perform development of experimental articulation joint (AJ) tracking system to improve angular measurement accuracy. Based on this research the Infrared optical tracking method was selected. Using unique AJ motion geometry, a new method to define the articulation angle of AJ was developed. Mathematical algorithms for image processing and analysis were created and implemented (Matlab, Mathcad).
Participate as a team member in feasibility studies to prove concept of the Electromagnetic Imaging during medical procedure, including: the Bench tests technical evaluation; the Wet Lab and Animal Lab Technical evaluation; Technical, Preclinical and Clinical Assessments; Human Factor Assessment; Feasibility of System Level; Intellectual Property Summary Assessment.
Contribute in brainstorming meetings, generation and processing of technical reports, creating of SOP’s, multiple presentations and submission of disclosures as appropriate.

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10/2003-
-10/2004

Sr. R&D Mechanical Engineer
BioValve Technology Inc., Worcester, MA

Duties included design, analysis and development of new concepts of medical devices and processes, as well as interaction with customers and suppliers.

Conduct research and development of systemic drug delivery devices.
Utilizing design of experiment method, conduct investigation of the ultra high viscosity (up to 100,000 cst) flow of fluids.
Design and development of linear insulin pumps with springs actuation (Pro-E wildfire, MathCad).
Design and development of needless, non contact, high pressure (up to 15,000 psi) fluid-jet delivery systems (Pro-E wildfire, MathCad).
Development of experimental techniques for measurement of low pressure (few psi) and high viscous fluid flow (3 - 30 uL/hour).
Theoretical and experimental investigation of creeping in spring system.
Prepare technical reports and presentations.

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03/2003-
-10/2003

TECHNICAL EXPERT (contract)
W.W. & Co,Waltham, MA, USA

Duties included work in writing or reviewing books, and courses for college grads:
A few technical books reviews were complete:

pneumatic
hydraulic
graphic design
CNC
modeling and electro-mechanical systems design etc.

12/2002-
-02/2003

SYSTEM ENGINEER, Mechanical(contract)
H&R Tech., Lowell, MA, USA

Duties included analysis, modeling and design of mechanical and electro-mechanical systems for new functionality:

Design, development and implementation of prototype for flat wire feeder (MathCad, IntelliCad, SolidWorks).

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09/1999-
-09/2002

SOFTWARE ENGINEER
Raytheon Inc., SEL , Marlborough, MA

Duties included developing software for communication device, for air traffic control, for variety of IT applications and modeling:

Developed air-traffic control software - debugging and algorithms.
Programmed CPU, TCP/IP, Multiplexer Integration DCSS and OIU.
Developed the serial communication driver for UART 8250-16550 series or equivalent on the VPM motherboard (Assembler, C, Ada).
Conducted thermal analysis for electronic racks and for shelter "Alaska" (MIL-810, MathCad, ProE).
Conducted modal analysis for TSS gantry. Investigated and validated TSS display vibration (ANSYS, Matlab, Mathcad).

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02/1998-
-03/1999

RESEARCH ENGINEER
United Technologies Corp., Research Center, Mechatronic Systems Division, E. Hartford, CT, USA

Duties included analysis and modeling as well as research, development and design of actuator system for a variety of applications centered on control technology programs in the following areas:

Analyzed dynamic of both mechanical and fluid flow models (MatLab, FemLab, Simulink) used as starting point for an advanced system design.
Selected, evaluated, redesigned and tested the prototype of actuation systems and components (valves, actuators, peristaltic pumps etc.).
Developed control-specific, product deployable, high-performance actuators and actuation systems, using piezocrystalic and smart materials as drivers. Applicable for flow and combustion instabilities control. Patent US 6,109,566 (R-4239).
Provided technical input for proposals for both internal and external funding.
Provided periodic reports and presentation material for selected reviews.

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04/1995-
-02/1998

SENIOR RESEARCH ENGINEER
INGERSOLL-RAND, WaterJet System, Farmington Hills, MI, USA

Duties included design, analysis, as well as research and development of new concepts, products, and processes in the following areas:

Conducted research of ultra high-pressure (up to 65,000 psi) waterjet cutting system components: wear, erosion and cavitation problems, using design of experiment (polynomial, multifactorial, optimization) as method.
Analyzed linear, non-linear stress and material for high pressure elements (including polymer based seals) utilizing ALGOR finite element analysis software.
Investigated (experimental and computational) material behavior under high water pressure (up to 65,000 psi). Used static and dynamic (cycling) load. Conducted test, including moving parts and polymer based seals.
Designed linear hydraulic pump and double-intensifier feedback control systems.
Conducted experimental and theoretical investigation of the temperature field distribution in high pressure elements, cooling systems and compressed fluids.
Developed experimental techniques for measurement by sensors and data acquisition systems (C programming), wrote few programs for PLC.
Developed the laser/optical aliment and control positioning device.
Provided technical input for proposals for both internal and external funding.
Prepared technical reports, articles, presentations.

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COMPUTER SKILLS

Proficient skills in FEA: MES ALGOR;

Proficient skills in Design: Pro-E, SolidWorks;

Proficient skills in Analysis and Modeling: MathCad, Matlab, Simulink;

Proficient skills in DAS: WinWedge, Keithley, Labview etc.

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EDUCATION

Mechanical Event Simulation. FEA, 3 days workshop, Algor Inc., 2005, Chicago, MA.

Advanced Modeling Simulink, 3 days workshop, Mathworks, 2005, Natick, MA.

Advanced Programming in Mathcad, 2 days workshop, Mathsoft, 2005, Burlington, MA.

Design of Experiments studies, 4 weeks course, Raytheon, 2002, Tewksbury, MA.

Advanced C Programming, Class, Brandeis University, 2001, Waltham, MA.

Advanced Studies in finite element analysis, Algor Inc., 5 days workshop, 1995, Columbus, OH.

Advanced Studies of Math. Certificate, LSU, St.Petersburg, Russia. Three years post-graduate course.

MS in ME, Department of Mechanical Engineering, LMU, St.Petersburg, Russia.

BS in EE, Department of Electrical Engineering, LMU, St.Petersburg, Russia.

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PUBLICATIONS AND PATENTS

More then twenty articles in Russian and American magazines.
Several Russian and American patents:

"Vibration-driven acoustic jet controlling boundary layer separation" Patent US 6,109,566, 2000;
"Endovations Colonoscope Wet Lab Colon Model" 2005, disclosure;
"The Articulation Feedback System (AFS) for SUD Colonoscope" 2006, disclosure;
"Exterior, Handheld Position Sensor Used in a Magnetic Imaging Environment to Assist in the Safe Navigation of the Insertion Shaft of an Endoscope to Mitigate Looping" 2006, disclosure;

REFERENCES

Available upon request.

PERSONAL DATA

US citizen. Secret clearance (non-active).

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@ Created by Roman N. Tunkel
Last updated 12/21/2006

ROMAN N. TUNKEL (resume, short version) Arlington, MA E-mail: tunkelr@verizon.net www.geocities.com/ronatu

FIELD OF EXPERTISE:

EXPERIENCE

10/2004--02/2007

Sr. R&D Mechanical Engineer Boston Scientific Company, Watertown, MA

10/2003--10/2004

Sr. R&D Mechanical Engineer BioValve Technology Inc., Worcester, MA

03/2003--10/2003

TECHNICAL EXPERT (contract) W.W. & Co,Waltham, MA, USA

12/2002--02/2003

SYSTEM ENGINEER, Mechanical(contract) H&R Tech., Lowell, MA, USA

09/1999--09/2002

SOFTWARE ENGINEER Raytheon Inc., SEL , Marlborough, MA

02/1998--03/1999

RESEARCH ENGINEER United Technologies Corp., Research Center, Mechatronic Systems Division, E. Hartford, CT, USA

04/1995--02/1998

SENIOR RESEARCH ENGINEER INGERSOLL-RAND, WaterJet System, Farmington Hills, MI, USA

COMPUTER SKILLS

EDUCATION

PUBLICATIONS AND PATENTS

REFERENCES

PERSONAL DATA

ROMAN N. TUNKEL
(resume, short version)
Arlington, MA

E-mail: tunkelr@verizon.net
www.geocities.com/ronatu

10/2004-
-02/2007

Sr. R&D Mechanical Engineer
Boston Scientific Company, Watertown, MA

10/2003-
-10/2004

Sr. R&D Mechanical Engineer
BioValve Technology Inc., Worcester, MA

03/2003-
-10/2003

TECHNICAL EXPERT (contract)
W.W. & Co,Waltham, MA, USA

12/2002-
-02/2003

SYSTEM ENGINEER, Mechanical(contract)
H&R Tech., Lowell, MA, USA

09/1999-
-09/2002

SOFTWARE ENGINEER
Raytheon Inc., SEL , Marlborough, MA

02/1998-
-03/1999

RESEARCH ENGINEER
United Technologies Corp., Research Center, Mechatronic Systems Division, E. Hartford, CT, USA

04/1995-
-02/1998

SENIOR RESEARCH ENGINEER
INGERSOLL-RAND, WaterJet System, Farmington Hills, MI, USA