Zobrazeno 1 - 10
of 495
pro vyhledávání: '"Jia ZHENYUAN"'
Publikováno v:
Open Physics, Vol 16, Iss 1, Pp 826-831 (2018)
The elastic properties and plane acoustic velocity of double perovskite Sr2CaMoO6 and Sr2CaWO6 are investigated with the plane wave pseuedopotential method based on the first-principles density functional theory within the local density approximate (
Externí odkaz:
https://doaj.org/article/b4739f81cad746098f51ed8ad23b1021
Publikováno v:
Measurement Science Review, Vol 18, Iss 5, Pp 183-192 (2018)
It is important to improve the natural frequency of test device to improve measurement accuracy. First-order frequency is basic frequency of dynamic model, which generally is the highest vibration energy of natural frequency. Taking vector force test
Externí odkaz:
https://doaj.org/article/ba91f8980f224646a346d4bcd6ff4fbd
Research on performances of speed regulating mechanism of mine-used permanent magnet speed regulator
Publikováno v:
Gong-kuang zidonghua, Vol 44, Iss 7, Pp 40-44 (2018)
Structure and principles of mine-used permanent magnet speed regulator were introduced. A sinusoidal-based speed regulating groove was designed and contact stress of the groove was analyzed by finite element method. Axial force and air gap value in t
Externí odkaz:
https://doaj.org/article/0a9bf61b9c354fd29b4221c7874e97c0
Publikováno v:
International Journal of Mining Science and Technology, Vol 25, Iss 1, Pp 157-164 (2015)
The explosion flow field in five straight pipes with different diameters and one bending pipe selected from a domestic coal mine are studied by the method of numerical simulation. And the results show that, both in the straight and bending pipes, the
Externí odkaz:
https://doaj.org/article/413a3ba6b9c24f1aae4ae34ccd0e53cd
Publikováno v:
Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol 11, Iss 1, Pp JAMDSM0006-JAMDSM0006 (2017)
On the tracing measurement system, which based on the double position sensitive detectors (PSDs), the position of the same moving point can be detected synchronously through two PSD sensors that have a certain distance. The point will be imaged on bo
Externí odkaz:
https://doaj.org/article/14485ce98d554906b8d12a4f12cdbda8
Autor:
Wang, Zhenxing, Jia, Zhenyuan
This study aims to develop a low-cost refractometer for measuring the sucrose content of fruit juice, which is an important factor affecting human health. While laboratory-grade refractometers are expensive and unsuitable for personal use, existing l
Externí odkaz:
http://arxiv.org/abs/2305.16115
Autor:
Guan, Shouyan, Wang, Fuji, Wang, Hongquan, Wang, Gongshuo, Lei, Yajing, Fu, Rao, Jia, Zhenyuan
Publikováno v:
In Journal of Manufacturing Processes 30 June 2024 120:940-950
Publikováno v:
In Chinese Journal of Aeronautics April 2024 37(4):23-53
Publikováno v:
In Chinese Journal of Aeronautics January 2024 37(1):472-486
Publikováno v:
In Engineering December 2022 19:105-116