Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Yaqiang Qi"'
Publikováno v:
Journal of Marine Science and Engineering, Vol 12, Iss 3, p 364 (2024)
During deepwater drilling, testing, production, or hydrate mining, the circulating medium in the wellbore may contain solid particles, such as rock chips and sand, in addition to drilling fluids, gas, and water. In the high-pressure, low-temperature
Externí odkaz:
https://doaj.org/article/ec1ff097f12e4d70bdf0b8cc953e4c78
A New Model of Bubble Migration Velocity in Deep Water Wellbore Considering Hydrate Phase Transition
Publikováno v:
Journal of Marine Science and Engineering, Vol 11, Iss 11, p 2206 (2023)
Mass transfer and phase transition have an important effect on the velocity of bubble migration in deepwater wellbores, and accurate prediction of bubble migration velocity is crucial for calculating the safe shut-in period of deepwater oil and gas w
Externí odkaz:
https://doaj.org/article/b9ca3628b2e24aea80d86eb23eb8275c
Publikováno v:
The Journal of Chinese Sociology, Vol 7, Iss 1, Pp 1-23 (2020)
Abstract This study investigates the relationship between occupational status and health inequality in the working population by analyzing data from the 2012 China Labor Force Dynamics Survey. The results show that individual health varies substantia
Externí odkaz:
https://doaj.org/article/45f1b962d0df42f58484165e0ca3c3dd
Autor:
Guizhen Xin, Na Xu, Hongwei Li, Faling Yin, Yaqiang Qi, Shaoqiang Li, Xinyao Su, Ye Chen, Baojiang Sun
Publikováno v:
Energies, Vol 15, Iss 21, p 7928 (2022)
Deep-water gas well testing is a key technology for obtaining reservoir production and physical property parameters. However, gas hydrates could easily form and cause blockage in the low-temperature and high-pressure environment on the seafloor. Ther
Externí odkaz:
https://doaj.org/article/58b0e978fd71431581e3d4b13ccab9fe
Autor:
Yaqiang Qi, Tongxin Liang
Publikováno v:
The Journal of Chinese Sociology, Vol 3, Iss 1, Pp 1-20 (2016)
Abstract Using data from the 2010 China Family Panel Study and county- and industry-level statistics, we estimate cross-classified multilevel models to examine the determinants of the income gap among Chinese workers. Results show that both regional
Externí odkaz:
https://doaj.org/article/ecbfb35f52444659bf5de03d8d29eb13
Autor:
Jianlin Niu, Yaqiang Qi
Publikováno v:
Demographic Research, Vol 42, p 22 (2020)
Background: Education expansion has contributed significantly to fertility decline during the worldwide fertility transition. Yet, it is less clear whether the educational gradient in fertility remains stable and persists in the post-transition era.
Externí odkaz:
https://doaj.org/article/27304e86cba44ce197d7fffd2c5aa2e4
Autor:
Yaqiang Qi, Yajie Xiong
Publikováno v:
Intelligence. 98:101752
Autor:
Yaqiang Qi, Jianlin Niu
Publikováno v:
Demographic Research, Vol 42, p 22 (2020)
Background: Education expansion has contributed significantly to fertility decline during the worldwide fertility transition. Yet, it is less clear whether the educational gradient in fertility remains stable and persists in the post-transition era.
Publikováno v:
Lecture Notes in Civil Engineering ISBN: 9789811909597
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e28040bafc0839ff3866bebb34026d6
https://doi.org/10.1007/978-981-19-0960-3_25
https://doi.org/10.1007/978-981-19-0960-3_25
Publikováno v:
The Journal of Chinese Sociology, Vol 7, Iss 1, Pp 1-23 (2020)
This study investigates the relationship between occupational status and health inequality in the working population by analyzing data from the 2012 China Labor Force Dynamics Survey. The results show that individual health varies substantially by oc