Search scope:
排序: Display mode:
Oguzhan Dogru, Kirubakaran Velswamy, Biao Huang
Engineering 2021, Volume 7, Issue 9, Pages 1248-1261 doi: 10.1016/j.eng.2021.04.027
This paper synchronizes control theory with computer vision by formalizing object tracking as a sequential decision-making process. A reinforcement learning (RL) agent successfully tracks an interface between two liquids, which is often a critical variable to track in many chemical, petrochemical, metallurgical, and oil industries. This method utilizes less than 100 images for creating an environment, from which the agent generates its own data without the need for expert knowledge. Unlike supervised learning (SL) methods that rely on a huge number of parameters, this approach requires far fewer parameters, which naturally reduces its maintenance cost. Besides its frugal nature, the agent is robust to environmental uncertainties such as occlusion, intensity changes, and excessive noise. From a closed-loop control context, an interface location-based deviation is chosen as the optimization goal during training. The methodology showcases RL for real-time object-tracking applications in the oil sands industry. Along with a presentation of the interface tracking problem, this paper provides a detailed review of one of the most effective RL methodologies: actor–critic policy.
Keywords: Interface tracking Object tracking Occlusion Reinforcement learning Uniform manifold approximationand projection
Assessment indices for uniform and non-uniform thermal environments
ZHANG Yufeng, SUN Shufeng, ZHAO Rongyi
Frontiers in Energy 2008, Volume 2, Issue 2, Pages 129-133 doi: 10.1007/s11708-008-0029-y
Keywords: thermal sensation proper assessment relationship equivalent thermal acceptability
Simulation of viscoelastic behavior of defected rock by using numerical manifold method
Feng REN, Lifeng FAN, Guowei MA
Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2, Pages 199-207 doi: 10.1007/s11709-011-0102-1
Keywords: stress wave propagation defected rock numerical manifold method viscoelastic behavior storage modulus
Rotation errors in numerical manifold method and a correction based on large deformation theory
Ning ZHANG, Xu LI, Qinghui JIANG, Xingchao LIN
Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5, Pages 1036-1053 doi: 10.1007/s11709-019-0535-5
Keywords: numerical manifold method rotation large deformation Green strain open-close iteration
Robust isogeometric topology optimization for piezoelectric actuators with uniform manufacturability
Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0683-5
Keywords: piezoelectric actuator isogeometric topology optimization uniform manufacturability robust formulation
Effect of non-uniform illumination on performance of solar thermoelectric generators
Ershuai YIN, Qiang LI, Yimin XUAN
Frontiers in Energy 2018, Volume 12, Issue 2, Pages 239-248 doi: 10.1007/s11708-018-0533-7
Keywords: solar thermoelectric generators non-uniform solar illumination performance evaluation solar energy
Yuan WANG, Ruyan SHOU, Loo Hay LEE, Ek Peng CHEW
Frontiers of Engineering Management 2017, Volume 4, Issue 3, Pages 338-347 doi: 10.15302/J-FEM-2017032
Keywords: supply chain network stochastic demand sampling average approximation Bayesian bootstrap Latin hypercube
Nodal, zonal, or uniform electricity pricing: how to deal with network congestion
Martin WEIBELZAHL
Frontiers in Energy 2017, Volume 11, Issue 2, Pages 210-232 doi: 10.1007/s11708-017-0460-z
Keywords: nodal pricing zonal pricing uniform pricing competitive electricity markets welfare maximization redispatch
XU Jian, LIU Weijun, LIU Honglai, HU Ying
Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 3, Pages 221-227 doi: 10.1007/s11705-007-0040-6
Keywords: solution-phase photoelectron spectroscopy 16-3-16 surfactant transmission
Peiwen Liu, Carsten Mai, Kai Zhang
Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3, Pages 383-389 doi: 10.1007/s11705-018-1718-7
Keywords: hydrogel uniform gradient dialdehyde cellulose ammonia gas diamine
Orderly decorated nanostructural photoelectrodes with uniform spherical TiO
A. M. Bakhshayesh,S. S. Azadfar
Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 4, Pages 532-540 doi: 10.1007/s11705-015-1549-8
Keywords: dye-sensitized solar cell uniform particles TiO2 gel process light harvesting
Analytical and numerical investigation into the longitudinal vibration of uniform nanotubes
Masoud MASOUMI,Mehdi MASOUMI
Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2, Pages 142-149 doi: 10.1007/s11465-014-0292-z
In recent years, prediction of the behaviors of micro and nanostructures is going to be a matter of increasing concern considering their developments and uses in various engineering fields. Since carbon nanotubes show the specific properties such as strength and special electrical behaviors, they have become the main subject in nanotechnology researches. On the grounds that the classical continuum theory cannot accurately predict the mechanical behavior of nanostructures, nonlocal elasticity theory is used to model the nanoscaled systems. In this paper, a nonlocal model for nanorods is developed, and it is used to model the carbon nanotubes with the aim of the investigating into their longitudinal vibration. Following the derivation of governing equation of nanorods and estimation of nondimensional frequencies, the effect of nonlocal parameter and the length of the nanotube on the obtained frequencies are studied. Furthermore, differential quadrature method, as a numerical solution technique, is used to study the effect of these parameters on estimated frequencies for both classical and nonlocal theories.
Keywords: continuum theory differential quadrature method nanorod longitudinal vibration
Exponential polynomial uniform splines model
Zhao Yanli,Ping Ping,Liu Fengyu
Strategic Study of CAE 2008, Volume 10, Issue 7, Pages 147-152
A new model of k( k ≥ 3) order exponential polynomial uniformThe spline curves which are constructed by the exponential polynomial uniform splines can adjust the
Keywords: exponential polynomial uniform spline function uniform B - spline function shape parameter
Shape reconstruction of parallelogram flaw
ZHENG Gangfeng, WU Bin, HE Cunfu
Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1, Pages 17-22 doi: 10.1007/s11465-008-0015-4
Keywords: approximation scatterer scattering problem information inverse
Xin Peng, Yang Tang, Wenli Du, Feng Qian
Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 3, Pages 429-439 doi: 10.1007/s11705-017-1675-6
Keywords: non-Gaussian processes subspace projection independent component analysis locality preserving projection
Title Author Date Type Operation
Actor–Critic Reinforcement Learning and Application in Developing Computer-Vision-Based Interface Tracking
Oguzhan Dogru, Kirubakaran Velswamy, Biao Huang
Journal Article
Assessment indices for uniform and non-uniform thermal environments
ZHANG Yufeng, SUN Shufeng, ZHAO Rongyi
Journal Article
Simulation of viscoelastic behavior of defected rock by using numerical manifold method
Feng REN, Lifeng FAN, Guowei MA
Journal Article
Rotation errors in numerical manifold method and a correction based on large deformation theory
Ning ZHANG, Xu LI, Qinghui JIANG, Xingchao LIN
Journal Article
Robust isogeometric topology optimization for piezoelectric actuators with uniform manufacturability
Journal Article
Effect of non-uniform illumination on performance of solar thermoelectric generators
Ershuai YIN, Qiang LI, Yimin XUAN
Journal Article
A case study on sample average approximation method for stochastic supply chain network design problem
Yuan WANG, Ruyan SHOU, Loo Hay LEE, Ek Peng CHEW
Journal Article
Nodal, zonal, or uniform electricity pricing: how to deal with network congestion
Martin WEIBELZAHL
Journal Article
Controlled synthesis of uniform silver nanowires with high aspect ratios in aqueous solutions of gemini
XU Jian, LIU Weijun, LIU Honglai, HU Ying
Journal Article
Preparation of hydrogels with uniform and gradient chemical structures using dialdehyde cellulose and
Peiwen Liu, Carsten Mai, Kai Zhang
Journal Article
Orderly decorated nanostructural photoelectrodes with uniform spherical TiO
A. M. Bakhshayesh,S. S. Azadfar
Journal Article
Analytical and numerical investigation into the longitudinal vibration of uniform nanotubes
Masoud MASOUMI,Mehdi MASOUMI
Journal Article