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GENERAL QUALITY RESEARCH
Derivation of Profit Curve by Cubic Cost Function and Mathematical Verification of Industry Life Cycle: Focused on All Industries in Korea
Purpose: The main theme of this study is to derive a profit curve by a cubic cost function for nonlinear CVP analysis. According to the analytical approach to derive a nonlinear profit function in this study, it is possible with only the existing cost structure to calculate the ...
GENERAL QUALITY RESEARCH
Clustering of Seoul Public Parking Lots and Demand Prediction
Purpose: This study aims to estimate the demand for various public parking lots in Seoul by clustering similar demand types of parking lots and predicting the demand for new public parking lots. Methods: We examined real-time parking information data and used time series cluste...
GENERAL QUALITY RESEARCH
Improving Inspection Systems for Radio Stations: An Emphasis on the ISO 2859-1 Sampling Method
Purpose: This research aims to develop a data-driven inspection policy for radio stations utilizing the KS Q ISO 2859-1 sampling method, addressing potential regulatory relaxations and impending management challenges. Methods: Using radio station inspection big data from the pa...
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Published online
51(4); December 31, 2023
Volume 51(3); September 2023
Volume 51(2); June 2023
Volume 51(1); March 2023
Volume 50(4); December 2022
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