Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Liuquan Wang"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-17 (2024)
Abstract In the feedrate scheduling of complex curve direct interpolation, dynamic constraints such as axis acceleration and jerk are related to the actual state of the tool. Most existing methods convert dynamic constraints to velocity constraints a
Externí odkaz:
https://doaj.org/article/f2f5e2e47c5e4782a5f18c180c69e480
Publikováno v:
Sensors, Vol 24, Iss 20, p 6542 (2024)
With the increasing level of industrial informatization, massive industrial data require real-time and high-fidelity wireless transmission. Although some industrial wireless network protocols have been designed over the last few decades, most of them
Externí odkaz:
https://doaj.org/article/2592c83d3bb9437dad924f8b1e307e72
Publikováno v:
Machines, Vol 11, Iss 2, p 281 (2023)
Dual NURBS interpolation has been proven an essential technique for high-speed precision machining of complex surfaces. The solution of rotation angles and their derivatives is the basis of kinematic transformation and feedrate optimization in dual N
Externí odkaz:
https://doaj.org/article/eb358b2589e04608aea78386273f6a10
Publikováno v:
Machines, Vol 11, Iss 1, p 79 (2023)
Chatter is a dynamic instability caused by the regeneration of waviness on the workpiece surface and damages the machining efficiency and product quality. For five-axis milling, the chatter stability analysis is more complicated because the cutter-wo
Externí odkaz:
https://doaj.org/article/d95b6590df4049c89cb2d5b2e9831d7f
Publikováno v:
Micromachines, Vol 13, Iss 12, p 2228 (2022)
To ensure the consistency of laser engraving depth in chemical milling, the precise control of 5-axis variable-angle laser engraving was the focus of research. Based on the energy conservation principle, the depth model of 5-axis variable-angle laser
Externí odkaz:
https://doaj.org/article/451d9b85c6fa45e68ded63364f396ad8
Publikováno v:
Applied Sciences, Vol 12, Iss 6, p 2914 (2022)
In order to solve the problems of multiple process parameters, difficult control and high process requirements in laser first/second scribing of aerospace chemical milling thin-wall parts, a laser scribing depth model based on thermal energy balance
Externí odkaz:
https://doaj.org/article/40bf3d37b70f4cffb5978450e8bb1e5f
Autor:
Jian Wang, Qiang Liu, Pengpeng Sun, Chenxin Zang, Liuquan Wang, Zhiwei Ning, Ming Li, Hui Wang
Publikováno v:
Micromachines, Vol 13, Iss 2, p 323 (2022)
Laser scribing in chemical milling is an important process which can effectively improve the precision and efficiency of chemical milling, and is of great significance to improve the thrust–weight ratio and manufacturing efficiency of aviation and
Externí odkaz:
https://doaj.org/article/de9cdee2e8424d79af0e687e39ac313f
Publikováno v:
Machines, Vol 9, Iss 12, p 318 (2021)
With commercial application of 5G networks, many researchers have started paying attention to real-time control in 5G networks. This paper focuses on dual auto guided vehicles collaborative transport scenarios and designs a formation control system i
Externí odkaz:
https://doaj.org/article/cf731880589841479f7d6afc1647b462
Autor:
Liuquan Wang, Yifan Yang
Publikováno v:
Journal of Number Theory. 242:471-521
Atkin and Garvan introduced the functions $N_k(n)$ and $M_k(n)$, which denote the $k$-th moments of ranks and cranks in the theory of partitions. Let $e_{2r}(n)$ be the $n$-th Fourier coefficient of $E_{2r}(\tau)/\eta(\tau)$, where $E_{2r}(\tau)$ is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d5e83a1c8abd990b1440cbe43cc1f558
https://doi.org/10.1016/j.jnt.2022.04.014
https://doi.org/10.1016/j.jnt.2022.04.014
Autor:
Liuquan Wang, Yifan Yang
Publikováno v:
International Journal of Number Theory. 18:2279-2297
We establish two families of congruences modulo powers of 5 for the Fourier coefficients of [Formula: see text], where [Formula: see text] is the weight 2 Eisenstein series and [Formula: see text] is the Dedekind eta function. This allows us to prove
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9a58d0ba6779dab1688d1f7e416460b
https://doi.org/10.1142/s1793042122501160
https://doi.org/10.1142/s1793042122501160