Results 11 to 20 of about 29,681,759 (338)

Determining Two-Dimensional Phosphor Surface Temperature Distribution of Phosphor-Coated LEDs Based on Hyper-Spectral Imaging

IEEE Journal of the Electron Devices Society, 2021
We present a high-resolution non-contact method for the measurement of two-dimensional (2D) phosphor surface temperature distribution (PSTD) of phosphor-coated light-emitting diodes (pc-LEDs) based on advanced hyper-spectral imaging technology.
Chen Yang, Zhi-Hui Li, Zhen Li, Fang-Yuan Zhu, Hui-Min Chen, Yu-Jia Gong, Xiao-Ya Dong, Zi-Quan Guo, Guo-Long Chen, Li-Hong Zhu, Huan-Ting Chen, Jian Xu, Yuan Shi, Jie Chen, Mei-Bin Yao, Yi-Jun Lu, Zhong Chen   +16 more
doaj   +1 more source

Biogas Potentiality Through Waste Management in Bangladesh [PDF]

Journal of Renewable Energy and Environment, 2020
This study offers an effective solution to meet the growing demands of biogas plants for energy. This paper presents a model and simulates the digestion process of biogas production from the organic and food processing waste that contains high moisture ...
Parvez Mosharraf, Md. Saroyar Zahan, Dilip Kumar Das, Suman Chowdhury   +3 more
doaj   +1 more source

Achievement of Possibly Maximum Photosynthetic Performances for Multi-Primary Laser Lighting for Indoor Farming

IEEE Photonics Journal, 2023
The artificial lighting based on multiple-primary light-emitting diodes (LEDs) or multiple-primary laser diodes (LDs) makes the diversity of colors by freely and simply adjusting the emission spectra of rays from these semiconductor devices.
Bingui Lv, Mingkai Huang, Meixue Chen, Liyue Xu, Lihong Lian, Huanting Chen, Yangyu Yao, Jingxuan Sun, Yixuan Lu, Xinqin Liao, Zhong Chen, Ziquan Guo   +11 more
doaj   +1 more source

Model Predictive Control of Power Electronic Systems: Methods, Results, and Challenges

IEEE Open Journal of Industry Applications, 2020
Model predictive control (MPC) has established itself as a promising control methodology in power electronics. This survey paper highlights the most relevant MPC techniques for power electronic systems.
P. Karamanakos, Eyke Liegmann, T. Geyer, R. Kennel   +3 more
semanticscholar   +1 more source

Design and simulation of high linearity CMOS analog multiplier

Dianzi Jishu Yingyong, 2020
A high linearity CMOS analog multiplier is designed and simulated. The input signal is preprocessed by active attenuator and the CMOS Gilbert multiplier is used for multiplication of the signal, and the bias circuit is designed meanwhile. When the supply
Ding Kun, Tian Ruizhi, Wang Tao, Wang Peng, Yi Maoxiang, Zhang Qingzhe   +5 more
doaj   +1 more source

Explore Luminance Attenuation and Optical Crosstalk of RGB Mini Light-Emitting Diode via Microscopic Hyperspectral Imaging

IEEE Journal of the Electron Devices Society, 2022
In this article, we experimentally and quantitatively investigate the luminance attenuation for red, green, and blue mini light-emitting diodes (LEDs), and the optical crosstalk in the RGB mini-LED array under different working currents via the ...
Lili Zheng, Ziquan Guo, Yijun Lu, Peixin Zeng, Shouqiang Lai, Guolong Chen, Yulin Gao, Lihong Zhu, Weijie Guo, Yi Lin, Zhong Chen   +10 more
doaj   +1 more source

Earthquake building damage detection based on synthetic-aperture-radar imagery and machine learning [PDF]

Natural Hazards and Earth System Sciences, 2023
This article presents a framework for semi-automated building damage assessment due to earthquakes from remote-sensing data and other supplementary datasets, while also leveraging recent advances in machine-learning algorithms.
A. Rao, J. Jung, V. Silva, G. Molinario, S.-H. Yun, S.-H. Yun, S.-H. Yun   +6 more
doaj   +1 more source

Electronic model for self-assembled hybrid organic/perovskite semiconductors: Reverse band edge electronic states ordering and spin-orbit coupling [PDF]

, 2012
Based on density functional theory, the electronic and optical properties of hybrid organic/perovskite crystals are thoroughly investigated. We consider the monocrystalline 4F-PEPI as material model and demonstrate that the optical process is governed by
J. Even, L. Pédesseau, M. Dupertuis, J. Jancu, C. Katan   +4 more
semanticscholar   +1 more source

A trust-based consumer decision-making model in electronic commerce: The role of trust, perceived risk, and their antecedents

Decision Support Systems, 2008
Are trust and risk important in consumers' electronic commerce purchasing decisions? What are the antecedents of trust and risk in this context? How do trust and risk affect an Internet consumer's purchasing decision?
D. Kim, D. Ferrin, H. Rao
semanticscholar   +1 more source

Heart Rate Estimation from Incomplete Electrocardiography Signals

Sensors, 2023
As one of the most remarkable indicators of physiological health, heart rate (HR) has become an unfailing investigation for researchers. Unlike many existing methods, this article proposes an approach to implement short-time HR estimation from ...
Yawei Song, Jia Chen, Rongxin Zhang
doaj   +1 more source