Mine overview
A large limestone mine was selected as the research object. The mining area is located in the basement layer of the Weilong-Zhangwu Basin, within the northwest-west trending structural belt, at the core of the Yihuqiao syncline. The…

A large limestone mine was selected as the research object. The mining area is located in the basement layer of the Weilong-Zhangwu Basin, within the northwest-west trending structural belt, at the core of the Yihuqiao syncline. The…

The evolution of the RMSE over the training epochs is shown in Fig. 5. The model with the best performance was achieved after approximately 83 training epochs, with an RMSE of 0.2045.
Optimization of the iterative…

The first experimental campaign dataset contains measurements of the input and output quantities for about 100 transient operations of a reduced-scale model of Francis turbines for four different startup types. In these tests,…

In recent years, numerous theoretical results have shown evidence that quantum computers have the potential to tackle a wide range of problems out of reach of classical techniques. The main examples include factoring large integers6, implicitly…

Although the test results indicate that Function (5) is a reliable TC energy consumption calculation model, the fitting coefficients require six time-parameters. The complexity of data collection and processing may hinder the model’s…

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This is a summary of: Shen, Z.-S. et al. Free-energy machine for combinatorial optimization. Nat. Comput….

Define the following error transformation as
$$z_{i} = x_{i} – \upsilon_{i}$$
(15)
where \(\upsilon_{1} = y_{d}\), and \(z_{1}\) represents the tracking error, \(\upsilon_{i}\), \(i =…

In many applications, molecular data from biology, chemistry, and material science can be represented as graphs50,51. In this framework, the vertices correspond to atoms, while the edges represent affinities between pairs of…

A flower-shaped structure only a few micrometres in size made of a nickel-iron alloy can concentrate and locally enhance magnetic fields. The size of the effect can be controlled by varying the geometry and number of ‘petals’. This magnetic…

A research team at POSTECH (Pohang University of Science and Technology) has developed the world’s first smartphone-type OLED panel that can freely transform its shape while simultaneously functioning as a speaker — all without sacrificing its…