Results 61 to 70 of about 62,542 (292)

Photonic Engineering Enables All‐Passive Upconversion Imaging with Low‐Intensity Near‐Infrared Light

Advanced Functional Materials, EarlyView.
A passive upconversion imaging system enables the observation of scenes illuminated by low‐intensity incoherent near‐infrared light from 750 to 930 nm, by converting it into the visible without the use of external power. The upconverter is enabled by triplet–triplet annihilation in a bulk heterojunction, with absorption enhanced by plasmonic resonators
Rabeeya Hamid, Demeng Feng, Pournima Narayanan, Justin S. Edwards, Manchen Hu, Emma Belliveau, Minjeong Kim, Shenwei Yin, Sanket Deshpande, Chenghao Wan, Linda Pucurimay, David A. Czaplewski, Daniel N. Congreve, Mikhail A. Kats   +13 more
wiley   +1 more source

Research on Maximum Likelihood b Value and Confidence Limits Estimation in Doubly Truncated Apparent Frequency–Amplitude Distribution in Rock Acoustic Emission Tests

Mathematics, 2022
The b value deduced from the Gutenberg–Richter law is an important parameter for sequence and precursory analyses, both in laboratory acoustic emission tests and seismology.
Changgen Xia, Daolong Chen, Wei He, Huini Liu, Xiling Liu   +4 more
doaj   +1 more source

Test Matter in a Spacetime with Nonmetricity

, 1996
Examples in which spacetime might become non-Riemannian appear above Planck energies in string theory or, in the very early universe, in the inflationary model.
Budinich P, Dothan Y, Fradkin E S, Guth A, Hehl F W, Hehl F W, Hehl F W, Hehl F W, Hehl F W, Hehl F W, Linde A, Meyer H, Mickelsson J, Ne'eman Y, Ne'eman Y, Ne'eman Y, Ne'eman Y, Obukhov Yu N, Schouten J A, Trautman A, Trautman A, Tresguerres R, Tresguerres R, Tucker R W, Vlachinsky E J   +24 more
core   +2 more sources

Smarter Sensors Through Machine Learning: Historical Insights and Emerging Trends across Sensor Technologies

Advanced Functional Materials, EarlyView.
This review highlights how machine learning (ML) algorithms are employed to enhance sensor performance, focusing on gas and physical sensors such as haptic and strain devices. By addressing current bottlenecks and enabling simultaneous improvement of multiple metrics, these approaches pave the way toward next‐generation, real‐world sensor applications.
Kichul Lee, Osman Gul, Yeongjae Kwon, Jaeseok Jeong, Seokjoo Cho, Jihyeon Ahn, Jehee Yu, Cheolmin Kim, Donho Lee, Hyeonseok Han, Byeongju Lee, Jungrak Choi, Ji‐Hwan Ha, Yongrok Jeong, Kyungnam Kang, Ali Javey, Junseong Ahn, Inkyu Park   +17 more
wiley   +1 more source

Existence and blowup of solutions for the modified Klein-Gordon-Zakharov equations for plasmas with a quantum correction

Advances in Difference Equations, 2017
This paper studies the existence and blowup of solutions for the modified Klein-Gordon-Zakharov equations for plasmas with a quantum correction, which describe the interaction between high frequency Langmuir waves and low frequency ion-acoustic waves in ...
Changhong Guo, Shaomei Fang
doaj   +1 more source

Random variable dilation equation and multidimensional prescale functions [PDF]

Transactions of the American Mathematical Society, 2001
Summary: A random variable \(Z\) satisfying the random variable dilation equation \(MZ \overset{\text{d}}{=}Z+G\), where \(G\) is a discrete random variable independent of \(Z\) with values in a lattice \(\Gamma \subset\) \(\mathbf{R}^{d}\) and weights \(\{ c_{k}\} _{k\in \Gamma}\) and \(M\) is an expanding and \(\Gamma\)-preserving matrix, if ...
Belock, Julie, Dobric, Vladimir
openaire   +2 more sources

Atomic‐Level Dual‐Cation Engineering Enables High‐Performance Na4VMn(PO4)3 Cathodes for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
Dual‐cation site engineering unlocks stable and fast sodium storage in Na4VMn(PO4)3 cathodes. Li+ at Na2 suppresses Jahn‐Teller distortion, while K+ at Na1 expands ion channels, enabling synchronized V/Mn redox and quasi‐single‐phase kinetics. This atomic‐level strategy achieves ultralong cycling stability, high‐rate capability, and full cell viability
Jiaze Sun, Xiaoyu Hu, Xianhe Meng, Nengjun Yu, Qiaoling Kang, Lijing Yan, Meiqiang Fan, Chubin Wan, Tingli Ma   +8 more
wiley   +1 more source

Heteroatom‐Engineering Promoted Co9S8 Bi‐functional Electrocatalyst for Hydrazine‐Assisted Hydrogen Production at Industrial Current Density

Advanced Functional Materials, EarlyView.
Fe and P co‐doped Co9S8 nanocorals (Fe, P‐Co9S8) are successfully synthesized by a heteroatom engineering strategy, which exhibit outstanding bifunctional electrocatalytic performance for both the hydrogen evolution reaction (HER) and hydrazine oxidation reaction (HzOR).
Yuying Meng, Chunyan Xiang, Wenbiao Zhang, Dahai Zeng, Bing Du, Bao Zhong, Yue Jiang, Damien Voiry, Qingsheng Gao   +8 more
wiley   +1 more source

A Hamiltonian vorticity–dilatation formulation of the compressible Euler equations [PDF]

Nonlinear Analysis: Theory, Methods & Applications, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Polner, M.A., van der Vegt, Jacobus J.W.
openaire   +3 more sources

Bioengineered Lymphatic Vessels in Synthetic Matrices to Study Breast Cancer Cell Functions

Advanced Healthcare Materials, EarlyView.
Lymphatic vessels are involved in cancer metastasis. To study the interplay between metastasizing cancer cells and lymphatic vessels under highly reproducible conditions, advanced in vitro models are required. In this work, 3D lymphatic networks are formed in biomimetic hydrogels and their interactions with invasive and non‐invasive cancer cell‐lines ...
Rodi Odabasi, Lisa A. Krattiger, Magdalini Kanari, Mira A. Jacobs, Lukas O. Moser, Mark W. Tibbitt, Cornelia Halin, Martin Ehrbar   +7 more
wiley   +1 more source