Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Keyong Chen"'
Publikováno v:
Energy Geoscience, Vol 4, Iss 3, Pp 100156- (2023)
The Feixianguan Formation reservoirs in northeastern Sichuan are mainly a suite of carbonate platform deposits. The reservoir types are diverse with high heterogeneity and complex genetic mechanisms. Pores, vugs and fractures of different genetic mec
Externí odkaz:
https://doaj.org/article/689b06061bf4432baae2f43a85341e38
Autor:
Longzhe Quan, Keyong Chen, Tianbao Chen, Hailong Li, Wenchang Li, Tianyu Cheng, Fulin Xia, Zhaoxia Lou, Tianyu Geng, Deng Sun, Wei Jiang
Publikováno v:
Frontiers in Plant Science, Vol 14 (2023)
Currently, mechanical and chemical damage is the main way to carry out weed control. The use of chlorophyll fluorescence (CF) technology to nondestructively monitor the stress physiological state of weeds is significant to reveal the damage mechanism
Externí odkaz:
https://doaj.org/article/6e774ce5d2554d85867cbee15a6c9eb4
Publikováno v:
Case Studies in Thermal Engineering, Vol 61, Iss , Pp 104935- (2024)
To further improve the thermal efficiency of gas turbines, the recuperator needs to be employed and the printed circuit heat exchanger with airfoil fins meets the recuperator's requirements of high heat transfer capacity, low flow resistance, and hig
Externí odkaz:
https://doaj.org/article/e4d01c24189e489ba48cc7c1b0c52589
Publikováno v:
Journal of Petroleum Science and Engineering. 176:962-969
To keep the stability and integrity of wellbore, it is required to figure out the interaction between clays, water and rock strength in the drilling process. As revealed in available literatures, a high content of clays usually leads to a low value o
Publikováno v:
Journal of Energy Resources Technology. 141
Wellbore strengthening materials (WSMs) have been widely used to strengthen the wellbore stability and integrity, especially those lost circulation materials (LCMs) used for mud loss impairment. To enhance the wellbore strengthening effect rather tha
Publikováno v:
The Review of scientific instruments. 89(11)
Since the invention of the Brazilian test about eight decades ago, discussions on the validity of indirect tensile strength measurement by the Brazilian test have always been of focus in rock fracture mechanics. According to the principles of the Bra
Publikováno v:
Case Studies in Thermal Engineering, Vol 53, Iss , Pp 103793- (2024)
Researches about comprehensive, systemic and multi-level assessment methods are limit. Therefore, a comprehensive assessment method of heat exchangers based on extension theory is proposed. Heat transfer, pressure drop, mechanism, safety and reliabil
Externí odkaz:
https://doaj.org/article/02acf5b2646140d39c95d66ca0fb53a6
Publikováno v:
International Journal of Rock Mechanics and Mining Sciences. 123:104062
To bridge the gap between elemental concentrations and rock mechanics, this paper proposed to predict a tensile failure using the weight concentrations of various elements. In this research, the Brazilian test was used to measure the indirect tensile
Publikováno v:
Chemical Engineering Communications. 202:475-483
A water-soluble terpolymer, PAAB, was copolymerized using acrylamide (AM), sodium 2-acrylamido-2-methylpropane-sulphonate (NaAMPS), and a novel macro-monomer, p-vinylbenzyl-terminated octylphenoxy poly(ethylene oxide) (VBE, polymerization degree: 24)
Autor:
Wu-si Qiu, Junfu Zhou, Hong Sheng, Weiming Wang, Jianmin Zhang, Ying Zhang, Weiguo Liu, Zefeng Xu, Keyong Chen
Publikováno v:
Journal of Critical Care. 22:229-235
Purpose We investigated the effects of therapeutic mild hypothermia on patients with severe traumatic brain injury after craniotomy (TBI). Methods Eighty patients with severe TBI after unilateral craniotomy were randomized into a therapeutic hypother