Development of a Cochlea-inspired Artificial Filter Bank (CAFB) and evaluation of its performance via real-time dynamic response tests on a two-span bridge

2015 ◽  
Vol 20 (2) ◽  
pp. 777-783
Author(s):  
Gwanghee Heo ◽  
Joonryong Jeon
Keyword(s):  
Dynamic Response ◽  
Real Time ◽  
Filter Bank ◽  
Time Dynamic

Study and Application of High-Speed Railway Real-Time Dynamic Response Based on Running Simulation

2013 ◽  
Vol 779-780 ◽  
pp. 695-699 ◽  
Author(s):  
Yi Chang Cai ◽  
Hao Pu ◽  
Wei Li ◽  
Jian Li ◽  
Xi An Long ◽  
...  
Keyword(s):  
Dynamic Response ◽  
Real Time ◽  
High Speed ◽  
Original Data ◽  
Creep Theory ◽  
High Speed Railway ◽  
Time Dynamic ◽  
Analysis Process ◽  
Non Linear ◽  
Actual Operation

In order that the vehicle-track dynamic simulation can reflect the actual operation better, the running simulation theory was introduced into the analysis process of the high-speed railway dynamic response. Firstly, the data (including time, mileage, velocity, acceleration, etc.) of train running simulation was worked out by traction calculation. Secondly, according to the structure feature of high-speed railways vehicle and track, the vehicle-track coupled dynamic model was built. Non-linear Hertz theory was used for modeling the wheel-rail contact. Then the wheel-track creep force was obtained by using Kalker's creep theory and Shen's non-linear theory. Meanwhile, various track spectrums were simulated. Furthermore, the running simulation data as the original data were used to work out the real-time dynamic response indices in the dynamic calculation process. Thirdly, the indices would be applied to the alignment comfort evaluation. Finally, the system was developed out and the rationality and practicability of the method were verified through an example.

Control Model Constructing on Real-Time Dynamic Reversible Lane in Condition of Connected Vehicle

CICTP 2020 ◽  
2020 ◽  
Author(s):  
Lina Mao ◽  
Wenquan Li ◽  
Pengsen Hu ◽  
Guiliang Zhou ◽  
Huiting Zhang ◽  
...  
Keyword(s):  
Real Time ◽  
Control Model ◽  
Connected Vehicle ◽  
Time Dynamic

scholarly journals Dynamic Gesture Recognition System with Gesture Spotting Based on Self-Organizing Maps

2021 ◽  
Vol 11 (4) ◽  
pp. 1933
Author(s):  
Hiroomi Hikawa ◽  
Yuta Ichikawa ◽  
Hidetaka Ito ◽  
Yutaka Maeda
Keyword(s):  
Real Time ◽  
Gesture Recognition ◽  
Weight Vector ◽  
Recognition System ◽  
Self Organizing Map ◽  
Self Organizing Maps ◽  
Time Dynamic ◽  
System Input ◽  
Self Organizing ◽  
Gesture Spotting

In this paper, a real-time dynamic hand gesture recognition system with gesture spotting function is proposed. In the proposed system, input video frames are converted to feature vectors, and they are used to form a posture sequence vector that represents the input gesture. Then, gesture identification and gesture spotting are carried out in the self-organizing map (SOM)-Hebb classifier. The gesture spotting function detects the end of the gesture by using the vector distance between the posture sequence vector and the winner neuron’s weight vector. The proposed gesture recognition method was tested by simulation and real-time gesture recognition experiment. Results revealed that the system could recognize nine types of gesture with an accuracy of 96.6%, and it successfully outputted the recognition result at the end of gesture using the spotting result.

Investigation on dynamic holographic display in liquid crystal film doped with carbon dots

2020 ◽  
Vol 10 (6) ◽  
pp. 780-787
Author(s):  
Hongyue Gao ◽  
Suna Li ◽  
Jicheng Liu ◽  
Wen Zhou ◽  
Fan Xu ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Electric Field ◽  
Real Time ◽  
Diffraction Efficiency ◽  
Carbon Dots ◽  
Applied Electric Field ◽  
Light Polarization ◽  
Forming Process ◽  
Time Dynamic ◽  
Holographic Display

In this paper, we studied the holographic properties of liquid crystal (LC) thin film doped with carbon dots (CDs) which can be used as real-time holographic display screen. The maximum value of diffraction efficiency can reach up to 30% by using a low applied electric field 0.2 V/μm. Holograms in the LC film can be dynamically formed and self-erased. The hologram build-up time and the hologram self-erasure time in the material is fast enough to realize video refresh rate. In addition, the forming process of hologram was studied. The holographic diffraction efficiency was measured depending on the intensity of recording light, applied electric field, the intensity of readout light, and readout light polarization direction. Triple enhancement of the diffraction efficiency value by the modulation of voltage under the condition of low recording energy is presented. Therefore, we develop an easy way to obtain real-time dynamic holographic red, green and blue displays with high diffraction efficiency, which allow the LC film doped with CDs to be used as a holographic 3D display screen.

scholarly journals First Demonstration of Combined kV/MV Image-Guided Real-Time Dynamic Multileaf-Collimator Target Tracking

2009 ◽  
Vol 74 (3) ◽  
pp. 859-867 ◽  
Author(s):  
Byungchul Cho ◽  
Per R. Poulsen ◽  
Alex Sloutsky ◽  
Amit Sawant ◽  
Paul J. Keall
Keyword(s):  
Target Tracking ◽  
Real Time ◽  
Multileaf Collimator ◽  
Time Dynamic ◽  
Image Guided
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