scholarly journals Hidden Vehicle Sensing via Asynchronous V2V Transmission: A Multi-Path-Geometry Approach

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 169399-169416
Author(s):  
Kaifeng Han ◽  
Seung-Woo Ko ◽  
Hyukjin Chae ◽  
Byoung-Hoon Kim ◽  
Kaibin Huang
Keyword(s):  
Path Geometry

scholarly journals Metastable transitions in inertial Langevin systems: What can be different from the overdamped case?

2018 ◽  
Vol 30 (5) ◽  
pp. 830-852
Author(s):  
ANDRE N. SOUZA ◽  
MOLEI TAO
Keyword(s):  
Friction Coefficient ◽  
Langevin Dynamics ◽  
Global Changes ◽  
Gradient System ◽  
Transition Rates ◽  
String Method ◽  
Transition Path ◽  
Gradient Systems ◽  
Path Geometry ◽  
Overdamped Limit

Metastable transitions in Langevin dynamics can exhibit rich behaviours that are markedly different from its overdamped limit. In addition to local alterations of the transition path geometry, more fundamental global changes may exist. For instance, when the dissipation is weak, heteroclinic connections that exist in the overdamped limit do not necessarily have a counterpart in the Langevin system, potentially leading to different transition rates. Furthermore, when the friction coefficient depends on the velocity, the overdamped limit no longer exists, but it is still possible to efficiently find instantons. The approach, we employed for these discoveries, was based on (i) a simple rewriting of the Freidlin–Wentzell action in terms of time-reversed dynamics and (ii) an adaptation of the string method, which was originally designed for gradient systems, to this specific non-gradient system.

scholarly journals Dry-flowing avalanche run-up and run-out

1995 ◽  
Vol 41 (138) ◽  
pp. 359-372 ◽  
Author(s):  
D. M. Mcclung ◽  
A. I. Mears
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Flow Depth ◽  
Dynamics Model ◽  
Friction Coefficients ◽  
Initial Flow ◽  
Path Geometry ◽  
Run Up ◽  
Stop Position ◽  
Numerical Dynamics

AbstractThe prediction of run-up and run-out of dry-flowing avalanches is very important for land-use planning, design of run-out zone defenses and construction of risk maps in avalanche terrain. In this paper, we present a numerical dynamics model to predict the stop position of the tip of these avalanches when friction coefficients (internal and external), initial flow depth and incoming speed are specified for known path geometry in the run-out zone. We also compare our model to that in the Swiss guidelines and to field examples. The results of these calculations clearly define model differences and the implications of different choices of friction coefficients.

Numerical study of the effect of flow path geometry on the property of a monopivot centrifugal blood pump

2017 ◽  
Vol 2017.29 (0) ◽  
pp. 1B12
Author(s):  
Daiki GOTO ◽  
Toru HYAKUTAKE ◽  
Masahiro NISHIDA ◽  
Daisuke SAKOTA ◽  
Ryo KOSAKA ◽  
...  
Keyword(s):  
Numerical Study ◽  
Flow Path ◽  
Blood Pump ◽  
Centrifugal Blood Pump ◽  
Path Geometry

S022011 Numerical Study of Impeller Flow Path Geometry of Circulatory Support Device with Monopivot Bearing

2013 ◽  
Vol 2013 (0) ◽  
pp. _S022011-1-_S022011-5
Author(s):  
Kento NAKAYAMA ◽  
Masahiro NISHIDA ◽  
Daisuke SAKOTA ◽  
Ryo KOSAKA ◽  
Takashi YAMANE ◽  
...  
Keyword(s):  
Numerical Study ◽  
Flow Path ◽  
Circulatory Support ◽  
Support Device ◽  
Path Geometry ◽  
Circulatory Support Device

PATH-GEOMETRY AND COSMOGONY

1936 ◽  
Vol os-7 (1) ◽  
pp. 290-293 ◽  
Author(s):  
D. D. KOSAMBI
Keyword(s):  
Path Geometry

Using Graphic Hardware to Accelerate Pocketing Tool-Path Generation

2013 ◽  
Vol 311 ◽  
pp. 135-140
Author(s):  
Chien Yu Lee ◽  
H.S. Lin ◽  
H.T. Yau
Keyword(s):  
Tool Path ◽  
Tool Path Generation ◽  
Experimental Results ◽  
Path Generation ◽  
Graphic Processing Units ◽  
New Approach ◽  
Graphic Hardware ◽  
Path Geometry ◽  
The Difference ◽  
Computation Speed

In this paper, we propose a new approach to accelerate the pocketing tool-path generation by using graphic hardware (graphic processing units, GPU). The intersections among tool-path elements can be eliminated with higher efficiency from GPU-based Voronoi diagrams. According to our experimental results, the GPU-based computation speed was seven to eight times faster than that of CPU-based computation. In addition, the difference of tool-path geometry between the CPU-based and GPU-based methods was insignificant. Therefore, the GPU-method can be efficiently used to accelerate the computation while the precision is assured for the tool-path generation in pocketing machining.

Application of ray-path geometry modification to the design of a collimating structure for LEDs

2008 ◽  
Vol 281 (23) ◽  
pp. 5674-5682 ◽  
Author(s):  
A. Mandatori ◽  
A. Benedetti ◽  
C. Sibilia ◽  
M. Bertolotti
Keyword(s):  
Path Geometry ◽  
Ray Path
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