Results 121 to 130 of about 431,057 (288)

The Remaining Life Prediction of Rails Based on Convolutional Bi-Directional Long and Short-Term Memory Neural Network with Residual Self-Attention Mechanism

Applied Sciences
In the railway industry, the rail is the basic load-bearing structure of railway tracks. The prediction of the remaining useful life (RUL) for rails is important to avoid unexpected system failures and reduce the cost of maintaining the system.
Gang Huang, Lin Gong, Yuhan Zhang, Zhongmei Wang, Songlin Yuan   +4 more
doaj   +1 more source

Electrical Properties and Lifetime Prediction of an Epoxy Composite Insulation Material after Hygrothermal Aging. [PDF]

Polymers (Basel), 2023
Yang Y, Ma J, Yap M, Wang Q, Chern WK, Foo YSE, Chen Z.   +6 more
europepmc   +1 more source

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

Advanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Jordi Llorca, Lluís Soler   +4 more
wiley   +1 more source

Quantum reflection of atoms from a solid surface at normal incidence

, 2004
We observed quantum reflection of ultracold atoms from the attractive potential of a solid surface. Extremely dilute Bose-Einstein condensates of ^{23}Na, with peak density 10^{11}-10^{12}atoms/cm^3, confined in a weak gravito-magnetic trap were normally
A. Schirotzek, C. Sanner, D. E. Pritchard, J. P. Dowling, M. Saba, T. A. Pasquini, W. Ketterle, Y. Shin   +7 more
core   +1 more source

Ladder‐Type Benzene‐Perylene Dyes with Efficient Laser Properties in the Near‐IR by Detracting/Activating Low/High Frequency Vibronic Modes

Advanced Functional Materials, EarlyView.
The NNR‐n series of oligomeric nanographenes delivers exceptional emission performance. This work shows that this performance is originated by their ladder‐type structure, which effectively deactivates low‐frequency vibronic modes. This deactivation neglects the main pathway for non‐emissive deactivation, even in the near‐infrared region. The potential
Marcos Díaz‐Fernández, Álex Farrando Pérez, Fernando Gordillo Gámez, Pedro G. Boj, José M. Villalvilla, José A. Quintana, Yanpei Wan, Daniel Aranda, José Manuel Marín‐Beloqui, Jishan Wu, Zebing Zeng, María A. Díaz‐García, Juan Casado   +12 more
wiley   +1 more source

Lifetime prediction of copper pillar bumps based on fatigue crack propagation

Frontiers in Materials
2.5D package realizes the interconnection of multiple dies through Si interposers, which can greatly improve the data transmission rate between dies. However, its multi-layer structure and high package density also place higher reliability requirements ...
Yuege Zhou, Yuege Zhou, Qingsheng Liu, Tengfei Ma, Tengfei Ma, Shupeng Li, Shupeng Li, Xinyu Zhang, Xinyu Zhang   +8 more
doaj   +1 more source

Remaining Useful Lifetime Prediction Based on Extended Kalman Particle Filter for Power SiC MOSFETs. [PDF]

Micromachines (Basel), 2023
Wu W, Gu Y, Yu M, Gao C, Chen Y.
europepmc   +1 more source

Atmospheric drag model calibrations for spacecraft lifetime prediction [PDF]

Although solar activity prediction uncertainty normally dominates decay prediction error budget for near-Earth spacecraft, the effect of drag force modeling errors for given levels of solar activity needs to be considered. Two atmospheric density models,
Binebrink, A. L., Radomski, M. S., Samii, M. V.   +2 more
core   +1 more source

Lifelong Sequential Modeling with Personalized Memorization for User Response Prediction

, 2019
User response prediction, which models the user preference w.r.t. the presented items, plays a key role in online services. With two-decade rapid development, nowadays the cumulated user behavior sequences on mature Internet service platforms have become
Bian, Weijie, Fang, Yuchen, Gai, Kun, Qin, Jiarui, Ren, Kan, Xu, Jian, Yu, Yong, Zhang, Weinan, Zheng, Lei, Zhou, Guorui, Zhu, Xiaoqiang   +10 more
core   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

Advanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner, Julian Burkhart, Kateryna Borysova, Chiara Mazzariol, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source