Dr David White Avatar

Dr David White

Director BioDesign Lab

Biomedical Engineer with an interest in the design of devices and therapies to treat for the human upper respiratory system.

experience

Director - BioDesign Lab  
Auckland University of Technology, October 2013 to Present, Auckland New Zealand
(Biomedical Engineering Research)
Responsible for strategic planning, research grant applications and postgraduate student supervision.

Senior Engineering Lecturer  
Auckland University of Technology, January 1994 to Present, Auckland New Zealand
(Educators)
Responsible for the delivery and cirriculum development of content in both the Bachelor of Engineering Technology and Bachelor of Engineering (hons) programmes. Specialist subjects include Mechanical Design, Heat and Mass Transfer, Fluid Dynamics, Dynamics and Statics. Research areas of interest include the human upper airway and in particular the design of theraputic biomedical devices.

Engineering Lecturer  
Auckland University of Technology, February 1993 to February 1994, Auckland New Zealand
(Educators)
Delivery of engineering lectures for Engineering Diploma subjects ranging from Mechanical Design, Mechanics, Heat Transfer and Electrical Machines and Fluid Dynamics.

Technical Manager  
New Zealand Ministry of Defense, April 1990 to February 1993, Auckland New Zealand
(Defense Engineering)
Responsible for 18 staff that made up the Condition Analysis Unit which provided the mechanical technical support required by the MOD. This required the management of financial plans which included budget development of over $1.5M, purchase of capital equipment, staff management and ongoing training. Also responsible for final sign off on technical reports on the condition of machinery equpment, lifting structures, ship hull conditio, gas testing and protective coatings. Undertook the writing of variations to contract based on reports generated.

Engineering Technican  
New Zealand Ministry of Defense, May 1985 to April 1990, Auckland New Zealand
(Defense Engineering)
Responsible for the repair, maintainence and tuning of ship pneumatic automatic control systems - including variable propeller pitch, ICE and boiler systems. The calibration and repair of pressure and temperature instrumentation. Design, repair and manufacture of mechanical gearing systems involving spur, helical, bevel, spiral bevel and worm gears. Repair of portable gas turbine fire pumps. Undertake vibration analysis of all rotating ship and shore based equipment. This required the use of FFT spectrum analysis. The dynamic balancing of rotating and reciprocationg machinery. Undertook a range of metrology activities that included the calibration of measurement equipment, dimensional inspection of machine components which included surface finish. This required techniques that included interferometry and laser devices.

Development Engineer  
Robert Harris Tea and Coffee Specialists, January 1984 to May 1985, Auckland New Zealand
(Design)
Responsible for the design and manufacture of Cappuccino machines taylored for the New Zealand market. Undertook the design of boiler and coffee dispensing systems, supporting structure and electrical systems. Also designed fabrication jigs and casting patterns to enable production.

Automotive Engineer  
Pearce & Whitlow, January 1978 to February 1983, Auckland New Zealand
(Automotive)
Responsible for the repair and maintainence of private and commercial light and heavy motor vehicles. This included engine, transmission, steering, suspension and structure repair and overhaul.

education

Auckland University of Technology  
Doctor of Philosophy, Biomedical Engineering, Jan, 2010 to Dec, 2013


Auckland University of Technology  
Master Of Science, Biomechanical, Feb, 2000 to Oct, 2003


University of Auckland  
Bachelor of Engineering, Mechanical, Mar, 1994 to Nov, 1996
Honours

Auckland Institute of Technology  
Other, Mechanical, Feb, 1983 to Nov, 1986
New Zealand Certificate in Engineering (NZCE)

patents

Zero turning radius vehicle control mechanism  (US 11/984,328)    
Inventors: Trevor Albert McCoid, David Edward White.  Issued November 15, 2007  in United States

A zero turning radius vehicle is disclosed that has a steering and drive control mechanism that includes a steering wheel and an accelerator pedal. The mechanism includes push-pull rods to effect movement of throttle levers on motors that independently drive traction elements such as wheels or traction belts. The position of each push-pull rod can be controlled by both the steering wheel and the accelerator pedal such that both the wheel and accelerator pedal can control the throttle of each motor independently or proportionally to thereby effect a change in vehicle speed and/or direction of travel.

publications

Nasal air-conditioning during breathing therapy     
Published by (Current Respiratory Medicie Reviews)
Authors: White, D.E, Al-Jumaily, A.M., Bertley, J. & Somervell, A..  Published March 31, 2011

It has been reported that continuous positive airway pressure therapy introduces negative nasal side-effects including sneezing, itching, nasal dryness, nasal congestion and/or a runny nose. As these symptoms are suggestive of nasal dysfunction, heated humidification is often used to fully saturate and heat the inhaled air to core body temperature. It is expected that this relieves the nasal mucosa from having to supply, or recover, heat and moisture from inspired and expired air. This review summarizes the current in vitro and in vivo knowledge relevant to nasal air-conditioning, and identifies further investigations necessary to improve our understanding the changes that occur during nasal continuous positive airway pressure therapy. Investigations into nasal airway fluid transportation, airflow regulation and heat and fluid supply may lead to a therapy temperature/pressure/humidification algorithm that optimizes these parameters for a prescribed therapy pressure. Optimization could lead to a reduction in titration pressure and improved treatment compliance.

Correlation of nasal morphology to air-conditioning and clearance function     
Published by (Respiratory Physiology and Neurobiology)
Authors: White, D.E., Al-Jumaily, A.M. & Lu, J..  Published December 12, 2011

Nasal morphology plays an important functional role in the maintenance of upper airway health. Identification of functional regions, based on morphological attributes, assists in correlating location to primary purpose. The effects of morphological variation on heat and water mass transport in congested and patent nasal airways were investigated by examining nasal cross-sectional MRI images from 8 healthy subjects. This research confirms the previous identification of functional air-conditioning regions within the nose. The first is the anterior region where the morphology prevents over-stressing of tissue heat and fluid supply near the nares. The second is the mid region where low flow velocity favours olfaction and particle deposition. The third is the posterior region which demonstrates an increase in heat and water mass flux coefficients to compensate for rising air humidity and temperature. Factors identified within the congested airway that favour enhanced mucocillary clearance were also identified.