Results 171 to 180 of about 683,980 (395)

Subsurface State Bilayer in Tetragonal Ferroelectric BaTiO3

Advanced Materials Interfaces, EarlyView.
The subsurface Ba2+disorder, reveals the pairs of O vacancies (VO++$V_O^{ + + }$ s) and small polarons (SPe‐SPe−$SP_e^ - $ s) (Figure a–b), with the charge balance, as the following: Ti3++[VO+++SPe−]pair↔Ti4+${{T}_i}^{3 + } + {{[V_O^{ + + } + SP_e^ - ]}_{pair}} \leftrightarrow T_i^{4 + }$ which is consistent with observed low‐energy electron ...
Junhao Chen, Xin Su, Tao Yuan, Wenbin Tang, Shicheng Ding, Yan Shi, Fangming Li, Kai Chen, Yang Yu, Hongchao Zhang, Siyuan Zhu, Guoliang Yuan, Jian Lu   +12 more
wiley   +1 more source

Mapping inspiral-merger-ringdown waveforms of binary black holes from black hole perturbation waveforms by machine learning [PDF]

arXiv
Identifying weak gravitational wave signals in noise and estimating the source properties require high-precision waveform templates. Numerical relativity (NR) simulations can provide the most accurate waveforms. However, it is challenging to compute waveform templates in high-dimensional parameter space using NR simulations due to high computational ...
arxiv  

Modeling Waveform Shapes with Random Eects Segmental Hidden Markov Models [PDF]

arXiv, 2012
In this paper we describe a general probabilistic framework for modeling waveforms such as heartbeats from ECG data. The model is based on segmental hidden Markov models (as used in speech recognition) with the addition of random effects to the generative model.
arxiv  

A Flexible‐Substrate 5‐µm‐Diameter Needle Electrode: Minimizing Neuronal Death and Enabling Year‐Long Neural Recording

Advanced Materials Interfaces, EarlyView.
An electrophysiological recording technology that uses a 5‐µm‐diameter microneedle electrode device is presented. Due to the remarkable small dimension of the microneedle, the electrode provides minimal invasive neural recording in a mouse brain and enables long‐term recording exceeding the year‐long duration.
Hinata Sasaki, Koji Yamashita, Sayaki Shimizu, Kensei Sakamoto, Rika Numano, Kowa Koida, Takeshi Kawano   +6 more
wiley   +1 more source

Optical Determination of Ultrasonic Waveforms [PDF]

, 1961
H. M. Colbert, K. Zankel
openalex   +1 more source

Influence of Loading Waveform on the Fatigue Life of 34CrNi3MoVA Steel

Metals
Mechanical components often experience fatigue loading from various waveform conditions during their operational lifespan. However, the underlying mechanisms through which variations in loading waveform affect the fatigue life of components remain ...
Xiaoyan Guan, Jie Tang, Jianzhi Chen
doaj   +1 more source

Self‐Recovery of Carbonate‐Contaminated Strontium Titanate (100) Vicinal Surfaces Imaged by Tip‐Enhanced Raman Spectroscopy

Advanced Materials Interfaces, EarlyView.
Strontium titanate, a widely used perovskite material, undergoes changes in surface properties under CO2 adsorption. This study demonstrates a self‐regeneration process where strontium carbonate gradually delaminates, leaving a TiO2 termination. The findings, supported by optical near‐field spectroscopy and density functional theory, have broad ...
Mohammad Bakhtbidar, Daniel Gueckelhorn, Marivi Fernández‐Serra, Yon Leandro Leibas López, Alexandre Merlen, Andreas Ruediger   +5 more
wiley   +1 more source

Statistics of Finite Ensembles of Periodic Waveforms [PDF]

, 1961
Herbert L. Fox, E. A. Starr
openalex   +1 more source

Joint Adaptive OFDM and Reinforcement Learning Design for Autonomous Vehicles: Leveraging Age of Updates

IEEE Open Journal of Vehicular Technology
Millimeter wave (mmWave)-based orthogonal frequency-division multiplexing (OFDM) stands out as a suitable alternative for high-resolution sensing and high-speed data transmission.
Mamady Delamou, Ahmed Naeem, Huseyin Arslan, El Mehdi Amhoud   +3 more
doaj   +1 more source

Leakage Current Waveforms and Arcing Characteristics of Epoxy Resin for Outdoor Insulators under Clean and Salt Fogs [PDF]

ITB Journal of Engineering Science, 2008
Ceramic outdoor insulators have been used in high voltage transmission lines since long time ago. Due to superiority in their resistance to pollution, recently, polymeric outdoor insulators are widely used.
Suwarno, S.K. Ardianto
doaj