Zobrazeno 1 - 10
of 3 331
pro vyhledávání: '"Dai Lei"'
Publikováno v:
Kongjian kexue xuebao, Vol 44, Pp 746-750 (2024)
A COnstellation of Radiation BElt Survey (CORBES) program is proposed by the Sub-Group on Radiation Belt (SGRB) of TGCSS, COSPAR. To address the open qustions about the dynamics of the Earth’s radiation belt, CORBES mission would use a constellatio
Externí odkaz:
https://doaj.org/article/f5cc0a7dfddb429c87e6d7963fc1c883
Publikováno v:
Cailiao gongcheng, Vol 52, Iss 5, Pp 127-137 (2024)
Cobalt-chromium-nickel (Co-Cr-Ni) alloys were prepared by two techniques of the sub-rapid solidification (SRS) and vacuum sintering (VS). The effects of the preparation processing and the content of Cr, Ni on the microstructure evolution were investi
Externí odkaz:
https://doaj.org/article/b5fa9438d8dc46dd9d9414b3eaee06f6
Autor:
ZHU Zhe, SHI Zengmin, YE Xicong, WANG Kesheng, LEI Haofeng, DENG-LI Chengui, LI Guangyu, DAI Lei
Publikováno v:
Cailiao gongcheng, Vol 52, Iss 1, Pp 165-174 (2024)
CoCrFeNi-(Nb, Ta) high-entropy alloys (HEAs) were prepared by a vacuum arc melting process, and the synergistic effect of Nb and Ta concentrations on the microstructure evolution and mechanical properties was investigated in detail. Nb and Ta concent
Externí odkaz:
https://doaj.org/article/c1592a750fea41f48ad3619256dcffd2
Autor:
DAI Lei, DUAN Lihong
Publikováno v:
Gong-kuang zidonghua, Vol 48, Iss 5, Pp 128-132 (2022)
The double-hole method in-situ pressure permeability test technology adopts single-direction pressure permeability test without considering the direction and anisotropy of rock fissures. The results are quite different from the actual situation of mu
Externí odkaz:
https://doaj.org/article/bd84a8e1e63942eaae22f492d9752d84
Publikováno v:
Gong-kuang zidonghua, Vol 48, Iss 4, Pp 128-134 (2022)
In order to solve the problems of low accuracy mine water inrush source discriminant method for mine floor water inrush source discrimination, taking the second level coal seam of suburban coal mine as an example, the Fisher mine floor water inrush s
Externí odkaz:
https://doaj.org/article/d3bf7e2189d642858e2da76bee4cdea9
Publikováno v:
Jixie qiangdu, Vol 44, Pp 215-224 (2022)
In view of the fatigue failure of the transmission shaft in advance, the study of the stress state and life is carried out. Through the analysis of the actual measured load, the cause of the fatigue failure of the drive shaft in advance is the incons
Externí odkaz:
https://doaj.org/article/8500846cefdc4df2830757b615ee7564
Publikováno v:
Journal of King Saud University: Science, Vol 34, Iss 4, Pp 101987- (2022)
Objectives: The living stems of Isodon rubescens (Hemsley) H. Hara peels and withers when the air temperature is below 0 °C in winter. The peels and withers evidently hamper the growth of I. rubescens. This report analyses the reason that causes I.
Externí odkaz:
https://doaj.org/article/6799c4f99ebf430ab14b65545259ef59
Autor:
Cai, Changpeng, Guo, Guinan, Li, Jiao, Su, Junhao, He, Chenghao, Xiao, Jing, Chen, Yuanxu, Dai, Lei, Zhu, Feiyu
Most earlier investigations on talking face generation have focused on the synchronization of lip motion and speech content. However, human head pose and facial emotions are equally important characteristics of natural human faces. While audio-driven
Externí odkaz:
http://arxiv.org/abs/2405.07257
Publikováno v:
IEEE Access, Vol 7, Pp 35556-35563 (2019)
In view of the complex and changeable environment in underground coal mines, an improved algorithm based on the principal component analysis-scale invariant feature transform (PCA-SIFT) and mean shift is proposed to address the issues for which exist
Externí odkaz:
https://doaj.org/article/049fb9e9814149e497806e2d9b2c1b8f
Publikováno v:
Jixie qiangdu, Vol 40, Pp 1177-1182 (2018)
The load data of Chinese users’ road and test field road is collected and analyzed in this paper. Through calculating the damage of each frequency band of load data,the corresponding test field feature matrix and user road target matrix are establi
Externí odkaz:
https://doaj.org/article/486b00ddc1b44710b5d3a45790f43bbc