Results 131 to 140 of about 909,126 (300)

Dual‐Programmable Architected Magnetic Soft Materials: Tuning Mechano–Electric Responses by Inverse Design

Advanced Functional Materials, EarlyView.
ABSTRACT Materials that can deform, sense, and autonomously generate power in response to wireless magnetic fields, through both magnetic‐actuated shape transformation and charge generation, are an emerging focus in advanced functional materials research.
Zhi Zhao, Xiaojia Shelly Zhang
wiley   +1 more source

Integrated DC arc model and DC arc detection approach based on K‐line diagram and spectrum integral difference

IET Power Electronics
In the low voltage direct current (LVDC) systems, the occurrence of DC series arc faults poses a significant threat to the safe operation of the system. This paper develops an accurate arc model for the arc fault simulation.
Qing Xiong, Junyi Zhang, Jianghan Li, Yijie Tang, Yi Zhuang, Yanjie Cui, Rui Li, Shengchang Ji   +7 more
doaj   +1 more source

On Model Selection and the ARC Sine Laws

The Annals of Statistics, 1982
Generalizations of the arc sine laws are shown to provide insight into the operating characteristics of certain techniques for selecting models to fit a given data set, when the available models are nested. As a corollary, one sees that a popular technique may be expected to include about one superfluous parameter, even if the sample size is large.
openaire   +2 more sources

Balancing Electrons to Break the Activity‐Selectivity Trade‐Off in H2O2 Electrosynthesis

Advanced Functional Materials, EarlyView.
Carrier‐concentration balancing in CuS is achieved by coupling cobalt dopants with cobalt vacancies, converting CuS from p‐ to n‐type to accelerate 2e− ORR while withdrawing excess carriers to optimize *OOH binding for H2O2 desorption. The catalyst reaches 8.14 mol g−1 h−1 with >84% selectivity in 1.0 M KOH and drives robust electro‐Fenton dye ...
Hangning Liu, Changhui Sun, Luyao Wang, Yuhang Cheng, Yi Xin, Xuyun Guo, Hui Li, Valeria Nicolosi, Yuhai Dou, Peng Li, Tianyi Ma, Jie Wang   +11 more
wiley   +1 more source

Series-arc-fault diagnosis using feature fusion-based deep learning model

ETRI Journal
This paper describes the detection of series arc faults, which constitute the major cause of electrical fires, in a power distribution system. Because the characteristics of series arc faults change considerably depending on the load type, their accurate
Won-Kyu Choi, Se-Han Kim, Ji-Hoon Bae
doaj   +1 more source

Unlocking Photodetection Mode Switching from a Simple Lateral Design

Advanced Functional Materials, EarlyView.
A simple lateral 2D perovskite photodetector capable of switching among transient, continuous, and dual transient/continuous photoresponse modes is achieved by integrating photoconductive effects with capacitive coupling from the SiO2/Si substrate. Such light‐programmable photodetection mode switching enables triple‐channel information transmission and
Zijun (June) Yong, Keng‐Te Lin, Joel van Embden, Taimur Ahmed, Yumeng Du, Dashen Dong, Yiwen Mai, Junlin Lu, Sumeet Walia, Baohua Jia, Tianyi Ma   +10 more
wiley   +1 more source

Analytical and experimental studies of MHD generator cathodes emitting in a ''spot'' mode [PDF]

Physical model for behavior of thermionic arc spots on MHD generator ...
Mantenieks, M. A., Nichols, L. D.
core   +1 more source

Graphene Nanosheet‐Based Mixed Proton‐Electron Conducting Membranes for Efficient Hydrogen Purification

Advanced Functional Materials, EarlyView.
A monolayer graphene/phosphoric‐acid mixed proton‐electron conducting membrane combines proton‐conducting nanoconfined acid channels with electron‐conducting graphene nanosheets for efficient high‐temperature hydrogen purification. The membrane achieves nearly 100% H2/CO2 selectivity and 69 GPU hydrogen permeance at 250°C, arising from synergistic ...
Kaiqiang He, Fanmengjing Wang, Dehua Dong, Yuan Kang, Zhikao Li, Jacek J. Jasieniak, Paul A. Webley, Douglas R. MacFarlane, Huanting Wang   +8 more
wiley   +1 more source

Simulation of Pantograph–Catenary Arc Temperature Field in Urban Railway and Study of Influencing Factors on Arc Temperature

Infrastructures
During the running of urban railway trains, arcs of the pantograph–catenary (PC) system cause instantaneous high-temperature ablation of PC system materials, which severely impact the standard running of trains.
Xiaoying Yu, Yang Su, Mengjie Song, Junrui Yang, Liying Song, Ze Wang, Yixiao Liu, Caizhuo Wei, Yongjia Cheng   +8 more
doaj   +1 more source

Development of a stable ultraviolet source and techniques for accurate radiometry Annual summary report, 1 Jan. - 31 Dec. 1965 [PDF]

Drawings and characteristics of small portable model of high pressure plasma arc source for stable accurate ultraviolet ...
Erminy, D. E., Hattenburg, A. T., Kostkowski, H. J., Yokley, C. R.   +3 more
core   +1 more source