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| ボンド・ワーク・インデックス× | 擬似フローアルゴリズム× | |
|---|---|---|
| 分野 | 鉱山工学 | 鉱山工学 |
| 系統 | Process / pipeline | Process / pipeline |
| 提唱年≠ | 1952 | 1992 |
| 提唱者≠ | Fred C. Bond | Dorit S. Hochbaum |
| 種類≠ | Empirical method for grinding energy estimation | Efficient algorithm for maximum closure problem |
| 原典≠ | Bond, F. C. (1952). The third theory of comminution. Transactions of the American Institute of Mining and Metallurgical Engineers, 193, 484-494. 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 ↗ |
| 別名≠ | Bond Work Index, BWI, Bond Index Test | Pseudoflow Algorithm, Hochbaum Algorithm |
| 関連 | 3 | 3 |
| 概要≠ | The Bond Work Index, introduced by Fred C. Bond in 1952, is an empirical parameter that characterizes the resistance of an ore to grinding in a tumbling mill. It is defined as the kilowatt-hours per short ton (kWh/st) of electrical energy required to reduce a coarse ore from theoretically infinite size to 80% passing 100 micrometers. The Bond Index is foundational in mineral processing plant design and cost estimation worldwide. | 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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