auxiliary 发表于 2025-3-27 00:55:08

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garrulous 发表于 2025-3-27 04:04:49

Trapped Miner Communication,es is met without using flameproof (FLP) enclosure. This power restriction further limits the communication range in underground mines. Therefore, transceivers should be designed with suitable frequency, which attenuates less when passing through coal block (Balanis, 1973; Reagor, 1997). Based on th

malapropism 发表于 2025-3-27 05:39:44

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对手 发表于 2025-3-27 12:28:41

An Entropy Risk Aversion in Portfolio Selectionn risk-free, by the concept of entropy, an index is computed. In such a way it is possible to carry out an absolute degree of risk and to achieve the comparisons between the different alternatives and to single out their ranking.

START 发表于 2025-3-27 13:53:42

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查看完整版本: Titlebook: Zugförderung; Ludwig Ritter Stockert (Professor) Book 1908 Springer-Verlag Berlin Heidelberg 1908 Bautechnik.Bauwesen.Förde.Förderung.Tech