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Assoc Prof at Industrial & Manufacturing Systems Engineering
Texas Tech University
Ph.D.
Industrial Engineering
University of Alabama at Tuscaloosa
M.S.
Industrial Engineering
University of Alabama at Tuscaloosa
M.S.
Applied Statistics
University of Guyana
PGDip
Education
University of Guyana
B.S.
Chemistry
January 1994
Ongoing
Assoc Prof
The University of Texas at Arlington
January 1987
January 1994
Assist Professor
The University of Texas at Arlington
January 1984
January 1987
Assist Professor
Louisiana Tech University
January 1984
January 1984
Visiting Professor
Louisiana Tech University
January 1976
January 1979
High School Master
Grand Turk High School, Turks & Caicos Islands
January 1968
August 1976
High School Teacher
Various High Schools in Guyana
January 1975
January 1976
Chemist/Shift Manager
Guyana Sugar Corp., Guyana
Research Interests
Assessment of physical overexertion of people at work and the development of data necessary for the design of equipment, jobs, and the environment for enhancing safety, health and productivity. Specific emphasis placed on empirical laboratory and field experiments for evaluating physical strength and anthropometry for manual work. Physical overexertion areas focuses on cumulative trauma disorders and injuries.
2011
Imrhan, S.N. and Panizo, K. (2011).  MVC torques on handles of different shapes.  Proceedings of the XXIInd Annual InternationalOccupational Ergonomics and  Safety Conference, Baltimore,MD.
Journal Article
Published
2011
Imrhan, Mandahawi, N.  Hamoudah, S. and Ramadan N. (2011). An Ergonomics evaluation of health and safety among nurses in a middle eastern environment. Proceedings of the XXIInd Annual InternationalOccupational Ergonomics and  Safety Conference, Baltimore,MD.
Conference Paper
Published
2010
Imrhan, S.N. and Mandahawi, N. (2010).  Handgrip Prediction Models for Children, Adults and the Elderly, Journal of Human Ergology, 39(2).
Journal Article
Published
2010
Imrhan, S.N., Mandahawi, N. (2010). Handgrip strength and hand segment dimension relationships. Proceedings of the XXIInd Annual International Occupational Ergonomics and  Safety Conference, Tempe, AZ, June, pp. 83-86.
Conference Paper
Published
2010
Imrhan, S.N. and Sukjaijaroenporn, S. (2010).  Accident and fatality trends in maintenance of medium sized monopole tower-supported wind power generation systems.  Proceedings of the XXIInd Annual International Occupational Ergonomics and  Safety Conference, pp. 32-35, Tempe, AZ, June.
Conference Paper
Published
2010
Mandahawi, N., Imrhan, S.N., Yousef, N. and Maqatif, S. (2010). The influence of mobile input techniques for touch screen devices on the performance of the Jordanian population. Proceedings of the XXIInd Annual International Occupational Ergonomics and  Safety Conference, Tempe, AZ, June, pp. 77-81.
Conference Paper
Published
2009
Imrhan, S.N., Sarder, MD, and Mandahawi, N. (2009). Hand anthropometry in Bangladeshis living in America and comparison with other populations. Ergonomics, 52(8), 987-988.
Journal Article
Published
2009
Imrhan, S.N., Hardjono, S. and Mandahawi, N. (2009).  An investigation of hand dimension ratios across various populations. Proceedings of the XXIst Annual International Occupational Ergonomics and  Safety Conference, pp. 174-177, Dallas, TX, June.
Conference Paper
Published
2009
Zeng, G. and Imrhan, S.N. (2009). Ergonomic evaluation and design of a library self-checkout book system (SCBS) for wheelchair users. Proceedings of the XXIst Annual International Occupational Ergonomics and  Safety Conference, pp. 191-195, Dallas, TX, June.
Conference Paper
Published
2008
Mandahawi, N., Imrhan, S.N. Al-Shobaki, S. and Sarder, B. (2008). Hand anthropometry survey for  the Jordanian population, International Journal of Industrial Ergonomics,  38 (11-12), 966-976.
Journal Article
Published
2008
Imrhan, S.N, Sanguino, J.  and Mandahawi, N. (2008). An investigation of physical strains from restaurant waiting job.  XXth Annual International Occupational Ergonomics and  Safety Conference, Chicago, IL, June.
Conference Paper
Published
2008
Hardjono, S.P., Marie, I.A. and Imrhan, S.N. (2008) Ergonomic investigation of a lipstick manufacturing workstation and development of a working tool. XXth Annual International Occupational Ergonomics and Safety Conference, Chicago, IL, June.
Conference Paper
Published
2008
Mandahawi, N., Altarazi, S.A.and Imrhan (2008). “Body Anthropometry in a Sample of Jordanian Males.” Proceedings of the Industrial Engineering Research Conference, 2008.
Conference Paper
Published
2006
M. D. Sarder, S. N. Imrhan, and N. Mandahawi. "Ergonomic workplace evaluation of an Asian garment-factory," Journal of Human Ergology, vol. 35, pp. 45-51, 2006.
Journal Article
Published
2006
S. N. Imrhan. "Two-handed static grip strengths in males: the influence of grip width," International Journal of Industrial Ergonomics, vol. 31, pp. 303-311, 2006.
Journal Article
Published
2006
M. D. Sarder, S. N. Imrhan, J. Rogers, and N. Mandhawi. "Line Balancing for Apparel Manufacturing using COMSOAL," presented at IIE Annual Conference, May 2006.
Conference Paper
Published
2006
"Assessment of Functional Outsourcing for Some US Industry," presented at IIE Annual Conference, May 2006.
Conference Paper
Published
2006
M. B. Sarder, S. N. Imrhan, and J. Rogers. "Logistics Infrastructure of Bangladeshi Garments Industry," presented at IIE Annual conference, May 2006.
Conference Paper
Accepted
2006
S. N. Imrhan, M. B. Sarder, and N. Mandhawi. "Hand Anthropometry in a Sample of Bangladesh Females," presented at Proceedings of the 10th Annual International Conference on Industrial Engineering – Theory, Applications, and Practice, Clearwater, FL, December 2006.
Conference Paper
Published
2005
M. B. Sarder, N. Mandahawi, and S. N. Imrhan. "An Ergonomic-Evaluation of an Asian Garment-factory & Implementation of a Low-Cost Solution," presented at Proceedings of the Industrial Engineering Research Conference, Atlanta, GA, May 2005.
Conference Paper
Published
2005
M. B. Sarder, N. Mandahawi, and S. N. Imrhan. "A Self Alignment Air Bag to Minimize the Risk of Spinal Cord Injury," presented at Proceedings of the Industrial Engineering Research Conference, Atlanta, GA, May 2005.
Conference Paper
Published
2005
S. N. Imrhan, M. B. Sarder, and N. Mandhawi. "Hand Anthropometry in a sample of Bangladesh Males," presented at The 10th Annual International Conference on Industrial Engineering Theory, Applications & Practice, Clearwater, FL, December 2005.
Conference Paper
Published
2005
S. N. Imrhan, N. Mandhawi, and M. B. Sarder. "Regression Models for Predicting Handgrip Strength Across a Wide Age Range," presented at The 10th Annual International Conference on Industrial Engineering Theory, Applications & Practice, Clearwater, FL, December 2005.
Conference Paper
Published
2005
M. B. Sarder and S. N. Imrhan. "Logistics and Supply-chain Infrastructure of the Southeast Asian Garments Industry," presented at Proceedings of the 10th Annual International Conference on Industrial Engineering – Theory, Applications, and Practice, Clearwater,FL, December 2005.
Conference Paper
Published
2005
S. N. Imrhan and M. G. Contreras. "Hand anthropometry in a sample of Mexicans from the US-Mexico Border Region," presented at Proceedings of the XIX Annual International Ergonomics and Safety Conference, Las Vegas, Nevada, 2005.
Conference Paper
Published
2005
S. N. Imrhan, M. J. Brown, and N. Mandahawi. "Finger pinch torques on small handles," presented at Proceedings of the XIX Annual International Ergonomics and Safety Conference, Las Vegas, Nevada, 2005.
Conference Paper
Published
2000
Imrhan, S. N. Preventing Aches and Pains in the Computer Workplace. Dallas, TX: Taylor Publishers, 2000.
Book
Published
1999
Imrhan, S. N. "The influence of grip width on two-handed strengths in females." International Journal of Industrial Ergonomics, no 25 (1999): 187-194.
Journal Article
Published
1998
Imrhan, S. N. and G. Jenkins. "Flexion-extension hand torque strengths: Applications in maintenance tasks." International Journal of Industrial Ergonomic, no 23 (1998): 359-361.
Journal Article
Published
1997
Imrhan, S. N. "Push-pull Force Limits." Handbook of Industrial Ergonomics, edited by W. Marras; and W. Karwowski, Boca, Raton, FL: CRC Press, Inc., 1997.
Book Chapter
Published
1997
Imrhan, S. N. "Gripping, Pinching and Squeezing." Handbook of Biomechanics in Ergonomics, edited by Taylor and Francis, Boca Raton, FL: CRC Press, Inc., 1997.
Book Chapter
Published
1995
Imrhan, S. N. "Task Analysis and Decomposition: Physical Components." Biomedical Engineering Handbook, edited by E. Borzino, 2249-2261. Boca Raton, FL: CRC Press, Inc., 1995.
Book Chapter
Published
1993
Hayes, D. J., R. J. Hocken, S. N. Imrhan, and R. G. Scott. Getting to Precision: What Manufacturing Managers need to Know. Ann Arbor, MI: National Center for Manufacturing Sciences, Inc., 1993.
Book
In-progress
1991
Imrhan, S. N. "Workspace Design for Maintenance." Workspace, Equipment and Tool Design, edited by A. Mital and W. Karwowski, 149-174. The Netherlands: Elsevier Publishers, 1991.
Book Chapter
Published
Summer 2014
IE 5314 - Safety Engineering
Office Hours
DayStartEnd
Monday1:30PM3:15PM
Wednesday1:30PM3:15PM
Methods to identify, measure, analyze, and evaluate safety hazards in the workplace. Scientific and managerial methods to prevent or control safety hazards.
Last Updated on June 4, 2014, 1:51 pm
Summer 2014
IE 4310 - Industrial and Product Safety
Office Hours
DayStartEnd
Monday1:30PM3:15PM
Wednesday1:30PM3:15PM
Scientific, managerial, and legal aspects of safety hazard control and elimination in the industrial workplace. Methods for enhancing product safety.
Last Updated on June 11, 2014, 9:39 am
Spring 2014
IE 4310 - Industrial and Product Safety
Office Hours
DayStartEnd
Monday1:30PM3:15PM
Wednesday1:30PM3:15PM
Scientific, managerial, and legal aspects of safety hazard control and elimination in the industrial workplace. Methods for enhancing product safety.
Last Updated on June 4, 2014, 1:53 pm
Spring 2014
IE 4344 - Human Factors Engineering
Study of the interactions between people and their work, workplace, and the environment. Involves identification, measurement, analysis, and evaluation of interactions via human physical and mental capacities and limitations, and social interactions.
Last Updated on January 24, 2014, 9:45 am
Spring 2014
IE 5338 - Human Engineering
Human structural, physiological, psychological, and cognitive capacities and limitations in the workplace, and their effects on the design of work systems to enhance productivity, and maintain health and safety.
Last Updated on January 24, 2014, 9:48 am
Fall 2013
IE 3314 - Engineering Research Methods
A continuation of IE 3301. Simple and multiple linear regression analysis, design of experiments, analysis of variance, and quality control statistics. Emphasis on the application of these methods to engineering data, with computerized data analysis.     
Last Updated on August 27, 2013, 10:43 am
Spring 2013
IE 4344 - HUMAN FACTORS ENGINEERING
Study of the interactions between people and their work, workplace, and the environment. Involves identification, measurement, analysis, and evaluation of interactions via human physical and mental capacities and limitations, and social interactions. Prerequisite: IE 3301, IE 3312, and IE 3343.
Last Updated on July 22, 2013, 8:20 pm
Spring 2013
IE 5338 - HUMAN ENGINEERING
Human structural, physiological, psychological, and cognitive capacities and limitations in the workplace, and their effects on the design of work systems to enhance productivity, and maintain health and safety. Prerequisite: IE 3301 or equivalent, or consent of instructor.
Last Updated on July 22, 2013, 8:20 pm
Spring 2013
IE 3301 - ENGINEERING PROBABILITY
Topics in industrial engineering that involve random processes. Applications and backgrounds for topics in reliability, inventory systems, and queuing problems, including absoldute and conditional probabiltities, discrete and continuous random variables, parameter estimation, hypothesis testing, linear regression, experimentsl designs and analysis of variance. Prerequisite: MATH 2326 or concurrent enrollment.
Last Updated on July 22, 2013, 8:20 pm
Spring 2013
IE 5338 - HUMAN ENGINEERING
Human structural, physiological, psychological, and cognitive capacities and limitations in the workplace, and their effects on the design of work systems to enhance productivity, and maintain health and safety. Prerequisite: IE 3301 or equivalent, or consent of instructor.
Last Updated on July 22, 2013, 8:20 pm
Spring 2013
IE 4344 - HUMAN FACTORS ENGINEERING
Study of the interactions between people and their work, workplace, and the environment. Involves identification, measurement, analysis, and evaluation of interactions via human physical and mental capacities and limitations, and social interactions. Prerequisite: IE 3301, IE 3312, and IE 3343.
Last Updated on July 22, 2013, 8:20 pm
Summer 2012
IE 4310 - INDUSTRIAL AND PRODUCT SAFETY
Scientific, managerial, and legal aspects of safety hazard control and elimination in the industrial workplace. Methods for enhancing product safety. Prerequisite: junior standing.
Last Updated on July 22, 2013, 8:20 pm
Summer 2012
IE 5318 - Applied Regression Analysis
Applied linear regression analysis.  In-depth study of one predictor variablefollowed by the matrix approach to multiple linear regression.  Topics includeestimation, prediction, residual analysis, transformations, multicollinearity,model selection, weighted least squares, ridge regression, robust regression,and logistic regression.Prerequisite: IE 3301 or equivalent.
Last Updated on July 22, 2013, 8:20 pm
Summer 2012
IE 5314 - SAFETY ENGINEERING
Methods to identify, measure, analyze, and evaluate safety hazards in the workplace. Scientific and managerial methods to prevent or control safety hazards. Prerequisites: graduate standing.
Last Updated on July 22, 2013, 8:20 pm
Spring 2012
IE 4344 - HUMAN FACTORS ENGINEERING
Study of the interactions between people and their work, workplace, and the environment. Involves identification, measurement, analysis, and evaluation of interactions via human physical and mental capacities and limitations, and social interactions. Prerequisite: IE 3301, IE 3312, and IE 3343.
No Syllabus Attached!
Spring 2012
IE 4344 - HUMAN FACTORS ENGINEERING
Study of the interactions between people and their work, workplace, and the environment. Involves identification, measurement, analysis, and evaluation of interactions via human physical and mental capacities and limitations, and social interactions. Prerequisite: IE 3301, IE 3312, and IE 3343.
No Syllabus Attached!
Spring 2011
IE 5331 - Industrial Economics
The analysis and design of physical work, workplace, and hand tools using ergonomic principles for enhancing performance, health, and safety. Work refers mainly to whole body and hand-arm activities, while workplace refers to industrial and computerized office environments. Applications focus on people's anthropometric, musculoskeletal and psychological characteristics. Prerequisites: IE 4344, 5338 or consent of instructor.
No Syllabus Attached!
Spring 2011
IE 5338 - HUMAN ENGINEERING
Human structural, physiological, psychological, and cognitive capacities and limitations in the workplace, and their effects on the design of work systems to enhance productivity, and maintain health and safety. Prerequisites: IE 3301 or equivalent, or consent of instructor.
No Syllabus Attached!
Fall 2010
IE 3301 - ENGINEERING PROBABILITY
Topics in industrial engineering that involve random processes. Applications and backgrounds for topics in reliability, inventory systems, and queuing problems, including absoldute and conditional probabiltities, discrete and continuous random variables, parameter estimation, hypothesis testing, linear regression, experimentsl designs and analysis of variance. Prerequisite: MATH 2326 or concurrent enrollment.
No Syllabus Attached!
Fall 2010
IE 3314 - ENGINEERING RESEARCH METHODS
A continuation of IE 3301. Simple and multiple linear regression analysis, design of experiments, analysis of variance, and quality control statistics. Emphasis on the application of these methods to engineering data, with computerized data analysis. Prerequisite: IE 3301.
No Syllabus Attached!
Summer 2010
IE 4310 - INDUSTRIAL AND PRODUCT SAFETY
Scientific, managerial, and legal aspects of safety hazard control and elimination in the industrial workplace. Methods for enhancing product safety. Prerequisite: junior standing.
No Syllabus Attached!
Summer 2010
IE 5314 - SAFETY ENGINEERING
Methods to identify, measure, analyze, and evaluate safety hazards in the workplace. Scientific and managerial methods to prevent or control safety hazards. Prerequisites: graduate standing.
No Syllabus Attached!
Summer 2010
IE 5318 - Applied Regression Analysis
Applied linear regression analysis.  In-depth study of one predictor variablefollowed by the matrix approach to multiple linear regression.  Topics includeestimation, prediction, residual analysis, transformations, multicollinearity,model selection, weighted least squares, ridge regression, robust regression,and logistic regression.Prerequisite: IE 3301 or equivalent.
No Syllabus Attached!
Spring 2010
IE 5317 - Introduction to Statistics and Operations Research
Topics include descriptive statistics, set theory, combinatorics, mathematical expectation, probability distributions, confidence interval estimation, linear programming, the simplex and dual simplex algorithms, transportation and assignment problems, integer programming, and network analysis. Prerequisites: graduate standing and permission of advisor.
No Syllabus Attached!
Spring 2010
IE 4344 - HUMAN FACTORS ENGINEERING
Study of the interactions between people and their work, workplace, and the environment. Involves identification, measurement, analysis, and evaluation of interactions via human physical and mental capacities and limitations, and social interactions. Prerequisite: IE 3343.
No Syllabus Attached!
Fall 2009
IE 5317 - Introduction to Statistics and Operations Research
Description: Topics include descriptive statistics, set theory, combinatorics, mathematical expectation, probability distributions, confidence interval estimation, linear programming, the simplex and dual simplex algorithms, transportation and assignment problems, integer programming, and network analysis. Prerequisites: graduate standing and permission of advisor.
No Syllabus Attached!
Fall 2009
IE 3314 - ENGINEERING RESEARCH METHODS
A continuation of IE 3301. Simple and multiple linear regression analysis, design of experiments, analysis of variance, and quality control statistics. Emphasis on the application of these methods to engineering data, with computerized data analysis. Prerequisite: IE 3301.
No Syllabus Attached!
Spring 2009
IE 4344 - HUMAN FACTORS ENGINEERING
Study of the interactions between people and their work, workplace, and the environment. Involves identification, measurement, analysis, and evaluation of interactions via human physical and mental capacities and limitations, and social interactions. Prerequisite: IE 3343
No Syllabus Attached!
Spring 2009
IE 5338 - HUMAN ENGINEERING
Human structural, physiological, psychological, and cognitive capacities and limitations in the workplace, and their effects on the design of work systems to enhance productivity; and maintain health and safety.  Prerequisite:  IE 3301 or consent of instructor, or graduate standing   
No Syllabus Attached!
Spring 2009
IE 5318 - Applied Regression Analysis
Applied linear regression analysis.  In-depth study of one predictor variablefollowed by the matrix approach to multiple linear regression.  Topics includeestimation, prediction, residual analysis, transformations, multicollinearity,model selection, weighted least squares, ridge regression, robust regression,and logistic regression.Prerequisite: IE 3301 or equivalent.
No Syllabus Attached!
December -
EDITORIAL BOARD
International Journal of Industrial Ergonomics
Uncategorized
December -
CONSULTING EDITOR
International Journal of Industrial Engineering
Uncategorized
December -
REVIEWS JOURNAL PAPERS REGULARLY FOR
Applied Ergonomics Ergonomics International Journal of Industrial Ergonomics International Journal of Industrial Engineering
Uncategorized