Constant Visual and Haptic Time Delays in Teleoperation Control Stability and Human Operator Performance in a Simulated Virtual Reality Teleoperation

The goal of this research effort is to study the effects of haptic and visual time delays on human operators performance in simulated teleoperation tasks. Non synchronized haptic and visual time delays are typical to any teleoperation task utilizing communication networks such as the internet (wired and wireless).

Maysarah Abuhamdia, Jacob Rosen, Constant Visual and Haptic Time Delays in Teleoperation – Quantifying the Human Operator Performance, Presence: Teleoperation and Virtual Environments – pp. 271-290, Vol. 22, No. 4 – Fall 2013

| Status: Active Research |

Biomechanics of Rowing

Biomechanics is a branch of biophysics aiming to study of the structure, function and motion of the mechanical aspects of biological systems, at any level from whole organisms to organs, cells and cell organelles, using the methods of mechanics.

Biomechanics in the context of rowing and in the framework of the lab’s current research effort is focused on function and motion of the mechanical aspects of the rowing athlete’s body.

Kinematics of the Athlete's Body and the Oar in Rowing – Nominal Performance and Stereotypical Errors - Research Report

| Status: Active Research |

Central Venous Catheter - Training Program

Central venous catheters (CVC) are catheters inserted into the major deep (also termed central) veins of the neck, chest, or abdomen. CVCs are used for monitoring hemodynamic status, for administering medications or parenteral nutrition that require a high flow system for mixing, or for dialysis. Placement of a CVC is therefore one of the most common procedures performed in the care of high-risk patients. This program is designed to rapidly orient medical students, residents, attending physicians, and nurses to a standardized method of central venous catheter (CVC) placement. The program was developed as part of a collaborated efforts with Dr. Mika Sinanan and Dr. Sara Kim form the Institute for Simulation and Interprofessional Studies (ISIS) at the University of Washington.  

On-Line Training Program - Flash Module

| Status: Completed |

Snowboarding in Virtual Reality -
An Instrumented Snowboard Integrated with Microsoft XBox

A real snowboard was attached to a suspended mechanical platform allowing a user standing on it and roll the board. Sensors including position sensors attach to the board as well as multi axes accelerometer attached to the user belt allowed sensory inputs to the Xbox game pad. The user wearing head mounted display (HMD) can play any board based Xbox game such as Amped using his or her body motion.

| Status: Completed |

Orthopedic Implants

Total Hip Joint Replacement (Minimally Invasive Approach)
Ilio Lumber Fixation Device
Intra Vertebral Implant
Palvic Plate

| Status: Completed |

Hidden Markov Model Toolbox for MATLAB

The Hidden Markov Model (HMM) Toolbox for Matlab is a library of functions (M-files) that were written in Matlab's script language implementing both the discrete version (DHMM) and the continuous version (CHMM) of the HMM.

| Status: Completed |