Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Chun‐Jie Ma"'
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture. 237:925-936
Spiral bevel gear is widely used in the automotive and aerospace manufacturing industries, and the machining process is complex and the material is difficult to cut. The characteristics of high hardness, strong chemical reactivity and poor heat dissi
Autor:
Qi‐Ling Wang, Su‐Hua Jiang, Chun‐Jie Ma, Kai‐Xin Zhong, Jia‐Ming Zhuang, Dian‐Liang Lin, Peng‐Yu Huang, Gui‐Fang Ye, Min Jiang, Wen‐Bing Zhu, Zheng‐Mian Zhang, Xin‐Zong Zhang
Publikováno v:
Andrology. 10:1143-1149
Semen analysis (SA) plays a key role in guiding treatments of male reproductive diseases and infertility due to male factors; however, it remains challenging to conduct an accurate SA due to lack of standardization, highly subjective assessments, and
Autor:
Qi-Ling, Wang, Gui-Fang, Ye, Kai-Xin, Zhong, Wei-Xin, Wang, Xin, Wu, Chun-Jie, Ma, Xin-Zong, Zhang
Publikováno v:
Zhonghua nan ke xue = National journal of andrology. 27(4)
To analyze the causes of failure in autologous sperm cryopreservation (ASCP) in the human sperm bank and propose some countermeasures to improve the success rate of ASCP and promote it in human sperm banks.We retrospectively analyzed the reasons for
Autor:
Liang-Xue Peng, Chun-Jie Ma
Publikováno v:
Topology and its Applications. 319:108217
Autor:
Zheng Sheng Ding, Chun Jie Ma
Publikováno v:
2020 5th International Conference on Mechanical, Control and Computer Engineering (ICMCCE).
Aiming at the shortcoming that the efficiency of k-nearest neighbor algorithm (kNN) greatly decreases with the increase of the number of samples, a two-screen k-nearest neighbor algorithm is proposed. Its purpose is to increase the calculation speed
Publikováno v:
Zhonghua nan ke xue = National journal of andrology. 25(1)
To search for conception capacity-related long non-coding RNAs (lncRNA) and explore their possible roles in fertilization.We obtained 10 semen samples, 5 of high and the other 5 of low fertilizing ability, extracted large RNAs, established a cDNA lib
Publikováno v:
Topology and its Applications. 295:107672
In the second part of this article, we show that if Z is a metacompact subspace of a GO-space X and U is a family of open subsets of X such that Z ⊂ ⋃ U then there exists a point-finite family V of open subsets of X such that Z ⊂ ⋃ V and V
Autor:
Chun Jie Ma, Yan Ting Ma
Publikováno v:
Advanced Materials Research. 790:720-723
By analyzing the performance of traditional audit approach in municipal engineering construction, this paper put forward the whole process tracking audit, and proposed its superiority in controlling engineering cost emphatically from the content of e
Autor:
Chun Jie Ma, Yan Ting Ma
Publikováno v:
Advanced Materials Research. :3271-3274
As one of the major projects, urban subway plays an important role in the city development. However, therere a lot of uncertain risks throughout the entire construction process, any improper handling may lead to serious safety accidents and incalcula
Autor:
Chun Jie Ma, Yan Ting Ma
Publikováno v:
Applied Mechanics and Materials. :2312-2315
Through the concept of benefit-cost and the comparison with financial evaluation, this article expounds the method and applicability of benefit-cost analysis, and gives three indicators which are economic internal rate of return (EIRR), economic net