Search results for: Yi-peng Zhou

Items from 1 to 9 out of 9 results

article

A detailed study on phonon transport in thin silicon membranes with phononic crystal nanostructures

Qi Liang, Ya-Ling He, Qinlong Ren, Yi-Peng Zhou, more

Applied Energy > 2018 > 227 > C > 731-741

A common method to improve thermoelectric performance is to reduce thermal conductivity by enhancing phonon scattering. In this paper, a frequency-dependent phonon radiative transport equation (PRTE) solver, based on the discrete ordinates method, is developed to simulate phonon transport in thin silicon membranes with phononic crystal nanostructures. The influence of geometric parameters on phonon...

article

Multi-scale investigation on the absorbed irradiance distribution of the nanostructured front surface of the concentrated PV-TE device by a MC-FDTD coupled method

Yi-Peng Zhou, Ya-Ling He, Yu Qiu, Qinlong Ren, more

Applied Energy > 2017 > 207 > C > 18-26

Photovoltaic-thermoelectric (PV-TE) hybrid device is one of the most representative ways for the full-spectrum solar energy utilization. The concentrator and nanostructured front surface have become important approaches to improve the conversion efficiency of the PV-TE device by enhancing the solar energy absorption. However, the concentrator causes badly non-uniform absorbed irradiance distribution...

article

Study on Lattice Thermal Conductivity of Silicon Thin Film with Aligned Nano-pores

Qi Liang, Ya-Ling He, Yi-Peng Zhou, Tao Xie

Energy Procedia > 2017 > 105 > C > 4915-4920

A frequency-dependent phonon Boltzmann transport equation solver is presented to numerically study the lattice thermal conductivity of nano-porous silicon thin film based on the Discrete Ordinates Method. We find that not only characteristic size and porosity, but also the shapes of both unit cell and pore do affect the lattice thermal conductivity. Therefore, we arranged a series of computational...

article

Multi-scale Investigation on the Optical Performance of a Concentrated Photovoltaic Thermoelectric Hybrid System by a MC-FDTD Coupled Method

Yi-Peng Zhou, Yu Qiu, Ya-Ling He, Tao Xie

Energy Procedia > 2017 > 105 > C > 473-479

Taking photovoltaic-thermoelectric (PV-TE) hybrid system with the full-spectrum solar energy utilization as application background, a 3D model for a PV-TE hybrid system that employs nanostructure surface and a linear Fresnel reflective solar concentrator was developed in this paper. In this model, a Monte Carlo-Finite Difference Time Domain (MC-FDTD) coupled method is presented to solve the multiscale...

article

C-reactive Protein Level, Apolipoprotein B-to-apolipoprotein A-1 Ratio, and Risks of Ischemic Stroke and Coronary Heart Disease among Inner Mongolians in China

Yun Fan TIAN, Yi Peng ZHOU, Chong Ke ZHONG, Batu BUREN, more

Biomedical and Environmental Sciences > 2016 > 29 > 7 > 467-474

We aimed to investigate the cumulative effect of high CRP level and apolipoprotein B-to-apolipoprotein A-1 (ApoB/ApoA-1) ratio on the incidence of ischemic stroke (IS) or coronary heart disease (CHD) in a Mongolian population in China. From June 2003 to July 2012, 2589 Mongolian participants were followed up for IS and CHD events based on baseline investigation. All the participants were divided...

article

Probing the reactivity of microhydrated α‐nucleophile in the anionic gas‐phase S_N2 reaction

Wen‐Yang Zhao, Jie Yu, Si‐Jia Ren, Xi‐Guang Wei, more

Journal of Computational Chemistry > 36 > 11 > 844 - 852

To probe the kinetic performance of microsolvated α‐nucleophile, the G2(+)_M calculations were carried out for the gas‐phase S_N2 reactions of monohydrated and dihydrated α‐oxy‐nucleophiles XO⁻(H₂O)_n_= 1,2 (X = HO, CH₃O, F, Cl, Br), and α‐sulfur‐nucleophile, HSS⁻(H₂O)_n_= 1,2, toward CH₃Cl. We compared the reactivities of hydrated α‐nucleophiles to those of hydrated normal nucleophiles. Our calculations...

article

Erratum to: Fast and robust stereo vision algorithm for obstacle detection

Yi-peng Zhou

Journal of Bionic Engineering > 2008 > 5 > 4 > 366-366

After serious investigation, the Editor-in-Chief of the Journal of Bionic Engineering has decided to retract the above paper due to extensive plagiarism of the following paper:Vision guided by vehicle dynamics for onboard estimation of the visibility rangeClément Boussard, Nicolas Hautière and Brigtte d’Andrèa-NovelThe 6^thIFAC Symposium on Intelligent Autonomous Vehicles, Sept. 2007, France

article

RETRACTED: Fast and Robust Stereo Vision Algorithm for Obstacle Detection

Yi-peng Zhou

Journal of Bionic Engineering > 2008 > 5 > 3 > 247-252

This article has been retracted at the request of the Editor-in-Chief. Please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).Reason: The authors have plagiarized part of a paper that had already appeared in the 6th IFAC Symposium on Intelligent Autonomous Vehicles, September 3–5, 2007, Toulouse, France. One of the conditions of submission of a paper for...

article

RETRACTED ARTICLE: Fast and Robust Stereo Vision Algorithm for Obstacle Detection

Yi-peng Zhou

Journal of Bionic Engineering > 2008 > 5 > 3 > 247-252

Binocular computer vision is based on bionics, after the calibration through the camera head by double-exposure image synchronization, access to the calculation of two-dimensional image pixels of the three-dimensional depth information. In this paper, a fast and robust stereo vision algorithm is described to perform in-vehicle obstacles detection and characterization. The stereo algorithm which provides...

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