The Harold and Inge Marcus Department of Industrial & Manufacturing Engineering
 
Laboratory for Quality Engineering
and System Transitions (QUEST)
 
 

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Dr. Harriet Black Nembhard
Associate Professor and Bashore Career Professor
Director, QUEST Lab

212 Leonhard Building
University Park, PA 16802
Phone: 814-865-4210
Fax: 814-863-4745
Email: hbnembhard@psu.edu

 
   
   
   
   
     
 


Research Topics

 
 
  1. Characterizing, monitoring, and adjusting a process during transition periods in manufacturing contexts

    • Process transition model and identification of the start and end of the transition
    • Simultaneous monitoring and control during the transition
    • Decision suport model using discrete-event simulation
    • See articles # 1, 2, 3, 5, 6, 7, 8, and 10 on the publications page

  2. Models for phenomenological transtions in an on-line data acquisition environments

    • Development of adaptive forecast-based monitoring model for dynamic systems
    • Color transition system for a polymer extrusion process that uses imaging software for on-line color data collection
    • See articles # 9, 13, 15, and 18 on the publications page

  3. Reducing variation in systems with anticipated causes using experimental design (DOE) and statistical control

    • Design a new methodology for using DOE, EPC, and SPC in a unified way to acheive efficient control and monitoring of industrial processes
    • Develop a taxonomy of adjustment equations and Cuscore monitoring policies for the most frequent scenarios found in industry
    • Investigate the robustness properties of Cuscore policies
    • Detecting expected causes in seasonal data
    • See articles # 12, 14, 17, 21, 22, 23, and 24 on the publications page

  4. Extensions of financial engineering theory to quality and manufacturing operations to improve flexibility

    • Framework for capturing the value of manufacturing flexibility using real options
    • Real options model for two and three variables inthe case of no switching costs and immediate decsion implementation
    • Real options model for three variables in the case of switching costs and time lagged decision implementation
    • See articles # 4, 11, 16, 19, and 20 on the publications page