Results 21 to 30 of about 10,031 (296)
Artificial Intelligent Technique for Power Management Lighting Based on FPGA [PDF]
Engineering and Technology Journal, 2020 The modern technological advances gave rise to new intelligent ways of performance and management in various fields of our lives. The employment of the artificial intelligent techniques proved influential in enhancing the technological developments and ...
Hanan A. R. Akkar, Sameh J. Mohammed
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A High Accuracy Weak Voltage LED Analog Dimming Method
IEEE Access, 2019 A weak voltage analog dimming method for high precision light emitting diode (LED) current control with N-Bits analog static offset calibration (N-Bits ASOC), dynamic offset cancellation (DOC) and K-times dimming duty to voltage (KD2V) conversion is ...
Jiang-Ping He +5 more
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Frontiers in Environmental Science, 2022 Global solar radiation (GSR) reaching the Earth’s surface can directly alter the energy balance of the climate system. The potential influence of inhomogeneity issues on Chinese GSR records on dimming and brightening in China has been argued for years ...
Jingxin Li +5 more
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Quantification of the urbanization impacts on solar dimming and brightening over China
Environmental Research Letters, 2022 Metropolis’ contribution (anthropogenic aerosols) to solar dimming and brightening remains a hot topic of special concern over the past several decades.
Shuyue Yang +6 more
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Increasing luminous efficiency of led by joint dimming mode with adjustable peak current
MATEC Web of Conferences, 2016 Luminous efficiency and color temperature of LED chip are affected by current and temperature. PWM dimming mode only works at two kinds of current levels-rated current and zero current.
Li Yongtao +5 more
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Dimming Control Scheme With High Power and Spectrum Efficiency for Visible Light Communications
IEEE Photonics Journal, 2017 In this paper, in order to accommodate dimming demands for illumination, which is an essential requirement for visible light communication (VLC), a dimming control scheme with high power and spectrum efficiency is proposed.
Fang Yang, Junnan Gao
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Dimming Control Systems Based on Low-PAPR SCFDM for Visible Light Communications
IEEE Photonics Journal, 2018 In this paper, the efficient dimming control systems based on single-carrier frequency-division multiplexing (SCFDM) are proposed for visible light communications (VLC).
Tiantian Zhang +5 more
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A closer looking at dimming and brightening in China during 1961–2005 [PDF]
Annales Geophysicae, 2010 This study investigates dimming and brightening of surface solar radiation (SSR) during 1961–2005 in China as well as its relationships to total cloud cover (TCC).
X. Xia
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Smart Dimmable LED Lighting Systems
Sensors, 2022 This paper proposes energy-efficient solutions for the smart light-emitting diode (LED) lighting system, which provides minimal energy consumption while simultaneously satisfying illuminance requirements of the users in a typical office space.
Milica Petkovic +7 more
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Camera system with small fast dimming mechanism
Nihon Kikai Gakkai ronbunshu, 2014 This paper describes a camera system with a small fast dimming mechanism and a camera. A developed camera system has two features. The small dimming mechanism is fast and sequential dimming using two polarizing filters.
Mitsuhiro MATSUMOTO
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