Thermokinetic model establishment and numerical simulation of 2,4,6-trinitrophenol based on eco-friendly synthesis method

2021 ◽  
pp. 1-20
Author(s):  
Ye-Cheng Liu ◽  
An-Chi Huang ◽  
Yan Tang ◽  
Xiao-Ming Ma ◽  
Ya-Ping Yang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Synthesis Method

scholarly journals Efficient Hogel-Based Hologram Synthesis Method for Holographic Stereogram Printing

2020 ◽  
Vol 10 (22) ◽  
pp. 8088
Author(s):  
Erkhembaatar Dashdavaa ◽  
Anar Khuderchuluun ◽  
Hui-Ying Wu ◽  
Young-Tae Lim ◽  
Chang-Won Shin ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Spatial Resolution ◽  
Angular Resolution ◽  
Synthesis Method ◽  
Three Dimensional ◽  
Lateral Resolution ◽  
Trade Off ◽  
Optical Experiment ◽  
Holographic Stereogram ◽  
3D Scene

With the development of the holographic printer, printing synthetic hologram requires smaller holographic element (hogel) size to improve spatial resolution of the reconstruction. On the contrary, a larger hogel size affords higher angular resolution, but it leads to a lower lateral resolution and there exists a trade-off problem. In this paper, a hologram synthesis method based on three-dimensional (3D) rendering of computer-generated holographic stereogram (HS) is proposed to limit the spatial-angular trade-off problem. The perspectives of the 3D scene are captured by re-centering the camera method and transformed into parallax-related images by a proposed pixel re-arrangement algorithm for holographic printing. Unlike the conventional approaches, the proposed algorithm not only improves the angular resolution of the reconstruction while maintaining the hogel size fixed, but also keeps the spatial resolution without degradation. The effectiveness of the proposed method is verified by numerical simulation and an optical experiment.

Experimental Study and Numerical Simulation of Vibration and Noise of Planetary Gears

2000 ◽  
Author(s):  
Katsuhiko Shoda ◽  
Toyoaki Furukawa ◽  
Youichi Iwanaga ◽  
Yuji Matsunami
Keyword(s):  
Numerical Simulation ◽  
Experimental Study ◽  
Synthesis Method ◽  
Gear Train ◽  
Mating Frequency ◽  
Planetary Gears ◽  
Epicyclic Gear ◽  
Ring Mode ◽  
Mode Vibration ◽  
Internal Gear

Abstract This paper presents experimental study and numerical simulation of vibration and noise of a speed increaser, which consist of a star type planetary gears and a planetary type epicyclic gear train. The ring mode vibration of internal gear in the star type planetary gears and torsional vibration of planetary gear in the planetary type epicyclic gear train are measured by use of telemetry system. The influence of tooth profile error for the vibration and the noise is clarified. The numerical simulation is also carried out to evaluate the exciting force and it’s associated vibration. In this method, the coupled vibration of shaft bending, torsional and ring mode vibration of the internal gear are taken into account employing modal synthesis method. The simulation results shows a good agreement with the experimental ones. And it is found that the ring mode vibration magnifies the higher order component of gear mating frequency.

Water uptake by substituted amylose tablets: experimentation and numerical simulation

2009 ◽  
Vol 00 (00) ◽  
pp. 090904073309027-8
Author(s):  
H.W. Wang ◽  
S. Kyriacos ◽  
L. Cartilier
Keyword(s):  
Numerical Simulation ◽  
Water Uptake
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