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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

An investigation of the effect of varying loads on the time required for cranking motions /

Thomas, Jack Valentine, January 1953 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute, 1953. / Vita. Includes bibliographical references (leaf 33). Also available via the Internet.
2

Synthesis of normal entree service times relationship of service time to system capacity.

Beach, Betty Laura, January 1967 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1967. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
3

DEVELOPING A TIME AND MOTION STUDY FOR A LEAN HEALTHCARE ENVIRONMENT

Patton, Michael Winston, Jr. 01 January 2011 (has links)
This thesis outlines the development of a standard methodology for performing a time and motion study in a lean healthcare environment. Time and motion studies have been used in healthcare environments in the past, however they have nearly all been exclusive to a particular healthcare enterprise. To develop the time and motion study methodology, a study was designed to examine how resident doctors spend their time. This study was performed in response to coming changes in the work hours for all residents. Once the methodology was developed, trial observations were conducted. The data from these observations was analyzed to determine the effectiveness of both the time and motion study methodology and its usefulness for process improvement activities.
4

Process Improvement of Door Manufacturing through Time Study and Simulation using Lean Concepts

Chen, Chen 03 May 2019 (has links)
This project investigated the effects of process capability, line station operation efficiency, and line balance on the product throughput of a wooden door manufacturing process using time-and-motion study and simulation methods. The problem-solving approach DMAIC was used to identify root causes to the problems and implemented the process improvements for the production line efficiency and throughput based on lean manufacturing concepts. The investigation results indicated that the main operation of the wooden door manufacturing process was based on manual and semi-automatic operations. The process capability of whole operation before implementing process improvements was around 600 doors monthly. The coefficient of variation of process time for manual operation ranged from 12% to 23%. The semi-automatic operation ranged from 2% to 20%. The average station efficiency and throughput was 31% and 20 doors per day respectively. After implementing the removal of obvious motion waste, the processing time of the whole process reduced 22.9%. The reduced process time variation for manual operation ranged from 9% to 14%, and the semi-automatic operations ranged from 3% to 7%. The final product output had a 200% increase and the total process efficiency had 100% improvement after implementing the improved process flow design. Meanwhile, the average station efficiency and output increased to 61% and 65 doors per day, respectively.

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