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| 광산 환기× | 슈도플로우 알고리즘× | |
|---|---|---|
| 분야 | 광산공학 | 광산공학 |
| 계열 | Process / pipeline | Process / pipeline |
| 기원 연도≠ | 1880 | 1992 |
| 창시자≠ | Mining Engineering Practice | Dorit S. Hochbaum |
| 유형≠ | System design for safe air quality and worker cooling in underground mines | Efficient algorithm for maximum closure problem |
| 원전≠ | Hartman, H. L., Mutmansky, J. M., Ramani, R. V., & Wang, Y. J. (2012). Mine ventilation and ambient air quality. Society for Mining, Metallurgy & Exploration, Inc. link ↗ | Hochbaum, D. S. (1992). A new-old algorithm for minimum-cut and maximum-flow problems. Journal of the ACM, 1(1), 76-109. link ↗ |
| 별칭≠ | Underground Mine Ventilation, Air Flow Design, Mine Haulage Ventilation | Pseudoflow Algorithm, Hochbaum Algorithm |
| 관련 | 3 | 3 |
| 요약≠ | Mine ventilation is the design and operation of systems that deliver fresh air to underground mining areas and remove contaminated air, heat, and hazardous gases. It is critical for worker safety and productivity, maintaining breathable air (sufficient oxygen, low dust and gas concentrations) and acceptable temperatures. Proper ventilation design requires calculating heat loads from mining operations, determining required air volumes, and designing shaft/drift geometry to deliver adequate flow. | The Pseudoflow Algorithm, developed by Dorit Hochbaum in 1992, is a polynomial-time algorithm for computing maximum weighted closures in directed acyclic graphs. In mining, it solves the ultimate pit limit problem more efficiently than earlier methods. By maintaining feasible pseudoflows and iteratively eliminating negative-cost nodes, it achieves near-optimal practical performance even on industrial-scale block models. |
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