Zobrazeno 1 - 10
of 341
pro vyhledávání: '"WU Jianbin"'
Publikováno v:
Meikuang Anquan, Vol 53, Iss 9, Pp 65-70 (2022)
Deep mining in Shaanxi and Inner Mongolia mining areas is characterized by high mine pressure and high degree of broken coal. Leaving narrow coal pillars is easy to cause side air leakage along goaf, and the coal left in the adjacent gob will undergo
Externí odkaz:
https://doaj.org/article/4cd15f3865724752a719ceec1ee886c8
Publikováno v:
Meikuang Anquan, Vol 53, Iss 3, Pp 193-199 (2022)
To explore the hazard zone of coal spontaneous combustion in the adiacent goaf at different stages of the roadway driving face, the 2202 working face and the 2201 adjacent goaf of Yingpanhao Coal Mine were taken as examples. The large-scale experimen
Externí odkaz:
https://doaj.org/article/4ecc6726b6f14ab6829eb6af77bb466e
Publikováno v:
Gong-kuang zidonghua, Vol 47, Iss 9, Pp 18-24 (2021)
At present, the automatic control method of mine local ventilation adopts manual adjustment of ventilator frequency, and relies on manual collection of air duct parameters, which lacks accurate and reliable monitoring methods to reflect the ventilati
Externí odkaz:
https://doaj.org/article/8349d28c3ccd49b499f1e3141a4d8a2c
Publikováno v:
International Journal of Distributed Sensor Networks, Vol 18 (2022)
With the popularity of the concept of big health and the important role of wearable devices in medical health, users pay more attention to the collection and acquisition of physiological data, but wearable devices attached to human users are independ
Externí odkaz:
https://doaj.org/article/4f4a976c0e3047f9ab8653d9c55e8bf9
Publikováno v:
MATEC Web of Conferences, Vol 336, p 07012 (2021)
In order to improve the anti-attack performance of the watermark to meet the requirements of copyright protection and content forensics. This paper proposes a digital watermarking hybrid algorithm based on color images. The specific process is to ado
Externí odkaz:
https://doaj.org/article/70f9a346efe5421d9f06d246a358c450
Multi-attribute evaluation and deviation analysis of regional distribution network investment effect
Publikováno v:
E3S Web of Conferences, Vol 213, p 03033 (2020)
As the input ratio of regional distribution network increases year by year, higher requirements are put forward for high quality and high reliability of power consumption. Under this background, this paper involves 11 evaluation indexes from three di
Externí odkaz:
https://doaj.org/article/e9d0495be7b343b687ca5e8bf2bc9169
Publikováno v:
In Soil Dynamics and Earthquake Engineering December 2024 187
We propose a confirmatory dynamic factor model for a large number of daily returns across multiple time zones. The model has a global factor and three continental factors. We propose two estimators of the model: a quasi-maximum likelihood estimator (
Externí odkaz:
http://arxiv.org/abs/2202.03638
Publikováno v:
In Structures September 2024 67
Publikováno v:
In Journal of King Saud University - Computer and Information Sciences September 2024 36(7)