Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Yankun MA"'
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 11, Pp 5299-5315 (2024)
Abstract To investigate the erosive damage effect of the acidic solution on sandstone, experiments were conducted to examine the macro‐ and micro‐characteristics of sandstone samples under different acid etching times. Microscopic morphology chan
Externí odkaz:
https://doaj.org/article/4640833277bd490aa9a04492e4ad677c
Publikováno v:
Frontiers in Psychology, Vol 15 (2024)
IntroductionThis study aimed to explore the relationship between family function and altruistic behavior in adolescents, while also investigating the potential mediating roles of extraverted personality and perceived social support.MethodsSurveys wer
Externí odkaz:
https://doaj.org/article/7b991589376142ae8af647efd9a4251a
Autor:
Shouqing Lu, Jiang Shi, Lei Jiao, Yankun Ma, Wei Li, Zhanyou Sa, Jie Liu, Taibiao Bei, Shengcheng Wang
Publikováno v:
International Journal of Coal Science & Technology, Vol 11, Iss 1, Pp 1-30 (2024)
Abstract Coal bed methane (CBM), the high-quality and efficient fuel, has caught the interest of many nations as they strive for environmentally friendly development. Therefore, the efficient exploitation and utilization of CBM has become one of the
Externí odkaz:
https://doaj.org/article/7093ce0b8a28475cb00cb0f69c494cb3
Publikováno v:
Meitan xuebao, Vol 49, Iss 4, Pp 1882-1893 (2024)
Frequent mining disturbance or periodic rupture of far-field roof in coal seam mining will produce multiple vibration loads, which have an important influence on the micro pore-fissure structure and macro mechanical behavior of coal. In order to expl
Externí odkaz:
https://doaj.org/article/9bdac53008894b6087b8ed0813bae594
Publikováno v:
BMC Psychology, Vol 12, Iss 1, Pp 1-11 (2024)
Abstract Background Some studies have examined the relationship between internalization of media appearance ideals and eating disorders. However, few have discussed the relationship between eating disorder tendencies. To fill this research gap, this
Externí odkaz:
https://doaj.org/article/9b42b3dec40047d8803d44ff92c0709a
Autor:
Jun WU, Yankun MA, Tong ZHANG, Yang LIU, Xin YANG, Junlin MAO, Min ZHU, Guoliang ZHOU, Zhizheng XIE, Mingchao WANG
Publikováno v:
Meikuang Anquan, Vol 55, Iss 2, Pp 159-166 (2024)
Aiming at the problem that coal seam development disturbs the stability of oil and gas trap layer and oil and gas shaft in the coordinated exploitation of coal and oil and gas, two-dimensional simulation test was used to carry out the research on the
Externí odkaz:
https://doaj.org/article/a1ab3d106079462eaa01c1e94d685d50
Publikováno v:
Frontiers in Psychology, Vol 15 (2024)
It has been reported that parental phubbing is a significant predictor of mobile phone addiction (MPA) among adolescents. However, the mechanisms underlying this association remain largely unclarified. On the basis of the social learning theories and
Externí odkaz:
https://doaj.org/article/0e1b3ac245804f3d96dc6bd5151c69aa
Publikováno v:
International Journal of Coal Science & Technology, Vol 10, Iss 1, Pp 1-15 (2023)
Abstract The gas pressure in front area of heading face is essential to dynamically evaluate coal and gas outburst during coal mining. In this work, a novel inversion model of gas pressure in front area of the heading face was established on premise
Externí odkaz:
https://doaj.org/article/5ce2a7d74be248709314e6885e5c0bf2
Publikováno v:
Meitan xuebao, Vol 48, Iss 5, Pp 1825-1845 (2023)
As shallow coal resources are gradually exhausted in China, the shift of coal mining from shallow to deep will become a new normal condition for ensuring the energy demand of China. Aiming at the problems of coal and gas outbursts, rockburst, and com
Externí odkaz:
https://doaj.org/article/ef72055be8d44beaa900d54c93ad7d44
Publikováno v:
Plants, Vol 13, Iss 10, p 1327 (2024)
Exogenous selenium application could effectively improve the selenium absorption of crops affected by different climatic conditions due to changes in the planting environment and planting conditions. We planted maize at planting densities of 67,500 p
Externí odkaz:
https://doaj.org/article/d6d139d9917940e094af9cd178ec145f