Results 71 to 80 of about 703,957 (311)

Influence of Air Layer Characteristics on the Heat Transfer Performance of Photovoltaic Dairy Barn Roofs

Agriculture
To enhance energy utilization efficiency, dairy farmers have increasingly adopted photovoltaic (PV) panels on barn roofs. However, there is currently a general separation between the barn construction and the additional aspects of the PV system.
Qi Wang, Yunying Liu, Fei Qi, Xinyi Du, Geqi Yan, Zhen Wang, Hui Liu, Chaoyuan Wang, Zhengxiang Shi   +8 more
doaj   +1 more source

Development of online monitor for substation 10 kV MOA

The Journal of Engineering, 2019
Metal oxide arresters (MOA) are widely used for over-voltage protection of power facilities in 10 kV distribution networks, and it is hard to determine the failure ones. This study presented an online monitor for 10 kV MOA used in substation.
Xinming Song, Yunfeng Xia, Jianzong He, Zhidong Jia, Xilin Wang   +4 more
doaj   +1 more source

Harmonic functions on multiplicative graphs and interpolation polynomials [PDF]

, 1999
We construct examples of nonnegative harmonic functions on certain graded graphs: the Young lattice and its generalizations. Such functions first emerged in harmonic analysis on the infinite symmetric group.
Borodin, Alexei, Olshanski, Grigori
core   +2 more sources

Microglial dynamics and ferroptosis induction in human iPSC‐derived neuron–astrocyte–microglia tri‐cultures

FEBS Open Bio, EarlyView.
A tri‐culture of iPSC‐derived neurons, astrocytes, and microglia treated with ferroptosis inducers as an Induced ferroptosis model was characterized by scRNA‐seq, cell survival, and cytokine release assays. This analysis revealed diverse microglial transcriptomic changes, indicating that the system captures key aspects of the complex cellular ...
Hongmei Lisa Li, Hiroko Ohmiya, Sou Sakamoto, Masato Yugami, Akiko Oki, Makoto Furusawa, Yan Ling   +6 more
wiley   +1 more source

Factor Correction Analysis of Nodal Tides in Taiwan Waters

Oceans
Nodal tides, which follow an 18.6-year cycle, influence tidal variations at any given location in the ocean. Conventional nodal tide theory neglects land effects and topological change.
Hsien-Kuo Chang, Peter Tian-Yuan Shih, Wei-Wei Chen   +2 more
doaj   +1 more source

Periodic harmonic functions on lattices and points count in positive characteristic

, 2007
This survey addresses pluri-periodic harmonic functions on lattices with values in a positive characteristic field. We mention, as a motivation, the game "Lights Out" following the work of Sutner, Goldwasser-Klostermeyer-Ware, Barua-Ramakrishnan-Sarkar ...
A.T. Amin, D. Levy, D.R. Heath-Brown, J. Goldwasser, J. Goldwasser, J.E. Humphreys, K. Sutner, M. Bhargava, M. Bicknell, M. Hunziker, M. Ram Murty, M. Zaidenberg, Mikhail Zaidenberg, O. Martin, P. Sarkar, R. Barua, R. Lidl, S. Gravier, V.E. Hoggatt Jr., V.E. Hoggatt Jr., W.A. Webb   +20 more
core   +1 more source

Understanding bio‐based polymers: A study of origins, properties, biodegradation and their impact on health and the environment

FEBS Open Bio, EarlyView.
This review provides an overview of bio‐based polymer sources, their unique functional properties and their environmental impact, and addresses their role as sustainable alternatives. It discusses end‐of‐life options, including composting and anaerobic digestion for renewable energy.
Sabina Kolbl Repinc, Blaž Stres, Mirica Karlovits, Igor Karlovits, Petra Jerič, Ondrej Panák, Anja Verbič, Blaž Likozar, Uroš Novak   +8 more
wiley   +1 more source

Harmonic Mitigation in Power Systems With High Wind Sources Penetration by Placing Passive Filters Considering Resonance Issues: A Case Study of the Sistan Power Grid

IET Renewable Power Generation
The harmonic challenge is high in power systems where many wind farms (WFs) are installed due to using power electronic devices. This paper proposes a multi‐objective framework with minimising THD index and cost function for reducing harmonics in the ...
Saeid Setamkesh, Ali Karimi, Mohsen Rahimi   +2 more
doaj   +1 more source

Study on the Unipolar Impulse Aging Characteristics of ZnO Varistors and Their Condition Monitoring Methods

Applied Sciences
Metal-oxide surge arresters (MOSAs) are critical devices for overvoltage protection in power systems, and the aging characteristics of their zinc oxide (ZnO) varistors under impulse and power-frequency voltages exhibit significant differences.
Yongqiang Fan, Wenkai Meng, Xiaoyun Tian, Yonggang Yue, Zhihui Li, Minxin Xu, Xinyan Xiao, Lanjun Yang   +7 more
doaj   +1 more source

Harmonic spectrum analysis of output voltage for matrix converter in marine electric propulsion system

Zhongguo Jianchuan Yanjiu, 2019
[Objectives] In this paper, the harmonic characteristics of output voltage for a matrix converter (MC)in marine electric propulsion system are studied.[Methods] Based on triple Fourier Series,an analytical calculation method to determine harmonic ...
WU Lingling, LI Jiazhi, XIAO Hong, CHEN Liying, LUO Wei   +4 more
doaj   +1 more source