Results 51 to 60 of about 9,082,756 (299)

Recent advances on mechanism and prevention technology of coal and gas outburst disasters in China

Meitan kexue jishu
Coal and gas outburst is a kind of mine dynamic disaster that occurs in underground coal mines, often causing mass casualties and seriously restricting the safe and efficient production of coal mines.
Chaojun FAN, Xiaofeng JIANG, Ting LIU, Mingkun LUO, Jun HAN, Tianwei LAN, Lei YANG, Ce JIA   +7 more
doaj   +1 more source

Control of coal and gas outbursts in Huainan mines in China: A review

Journal of Rock Mechanics and Geotechnical Engineering, 2016
Coal extraction in Huainan area is basically characterized by one of typical multi-seam mining conditions observed in China, where coal is mined in soft seams characterized by high gas content, high stress, low permeability and difficult geological ...
Liang Yuan
doaj   +1 more source

ABOUT THE PRE-OUTBURST STATE OF THE COAL AND SANDSTONE AND THE POSSIBLE MECHANISM OF COAL AND GAS OUTBURST PROCESS

Мінеральні ресурси України, 2018
The paper aims to examine the suitability of A. S. Balankin brittle fracture criterion in predicting the of large-scale coal and gas outbursts in underground coal mines under compression load. Formation of dissipative structures as cracks and clusters of local microcracking occurs under the influence of the rock pressure.
Yu. I. Voitenko, А. V. Kovtun
openaire   +2 more sources

Multi-epoch spectroscopy of IYUMa: quiescence, rise, normal outburst and superoutburst [PDF]

, 2005
We exploit rare observations covering the time before and during a normal outburst in the deeply eclipsing SU UMa system IY UMa to study the dramatic changes in the accretion flow and emission at the onset of outburst. Through Doppler tomography we study
Abbott, T.M.C., Morales-Rueda, L., Rolfe, D.J., Abbott, Timothy M.C., Morales-Rueda, Luisa, Haswell, C.A., Daniel J. Rolfe, Haswell, Carole A., Carole A. Haswell, G. Holdaway, Marsh, T.R., Holdaway, G., T. R. Marsh, Luisa Morales-Rueda, Timothy M. C. Abbott   +14 more
core   +1 more source

Emerging insights into CC and CXC chemokines and their receptors in Mycobacterium tuberculosis infection

FEBS Open Bio, EarlyView.
The dual roles of CC and CXC chemokines in distinguishing active, latent, and subclinical tuberculosis were reviewed, along with an evaluation of their potential as diagnostic biomarkers and therapeutic targets to advance precision medicine in tuberculosis management. The graphical abstract was generated with AI assistance (Gemini 3.0).
Xuying Yin, Dangsheng Xiao, Jiezuan Yang
wiley   +1 more source

Early Warning Method for Coal and Gas Outburst Prediction Based on Indexes of Deep Learning Model and Statistical Model

Frontiers in Earth Science, 2022
The early warning models for coal and gas outburst have become increasingly more important and have gained more attention in the mining industry in an effort to further improve mine safety.
Chong Wang, Chong Wang, Chong Wang, Like Wei, Like Wei, Haiyong Hu, Jiren Wang, Jiren Wang, Mengfeng Jiang   +8 more
doaj   +1 more source

Mechanisms for the Outbursts of Soft X-ray Transients

, 1996
We show that the Keplerian thin disk in quiescent Soft X-ray Transients cannot extend down to the last stable orbit around the central black hole. We analyse the properties of the Narayan, McClintock & Yi (1996) model of quiescent Soft X-ray Transients in which the cold Keplerian disk has its inner edge at a large transition radius and transforms ...
Lasota, J-P., Narayan, R., Yi, I.
openaire   +3 more sources

Characteristics and Outcomes of Male Participants in a Multicenter Longitudinal Australian Study Cohort

Arthritis Care &Research, EarlyView.
Objective The aim of this study was to determine the differences in demographic, serologic, and clinical characteristics between male and female patients with systemic sclerosis (SSc) in an Australian cohort. Methods This was a retrospective observational study using data from the Australian Scleroderma Cohort Study.
Emily Lin, Dylan Hansen, Laura Ross, Gene‐Siew Ngian, Susanna Proudman, Gabor Major, Maryam Tabesh, Mandana Nikpour, Jennifer Walker, Lauren Host, Nava Ferdowsi, Alannah Quinlivan, Wendy Stevens, Joanne Sahhar, Diane Apostolopoulos   +14 more
wiley   +1 more source

A research on destress mechanism of underlying roadway for gas outburst prevention in deep, low‐permeability coal seam

Energy Science & Engineering
Gas outbursts pose a significant threat in the mining of deep low‐permeability coal seams. As mining depth increases, there is a rise in coal and gas dynamic disasters, rendering the gas outburst prevention technology from shallow mining areas unsuitable
Jiadi Yin, Yu Wu, Hualei Zhang, Jianjun Cao   +3 more
semanticscholar   +1 more source

Study on cause of coal and gas outburst accident based on D-S evidence theory and Bayesian network

Meikuang Anquan, 2023
To explore the mechanism and influencing factors of coal and gas outburst accidents in coal mines, the factors inducing coal and gas outburst accidents were selected from four aspects: human, machine, environment and management, and the risk of accidents
QIN Yan, SHENG Wu
doaj   +1 more source