Results 91 to 100 of about 242,274 (310)

New lower bounds for the minimum M-eigenvalue of elasticity M-tensors and applications

Journal of Inequalities and Applications, 2020
M-eigenvalues of elasticity M-tensors play an important role in nonlinear elasticity and materials. In this paper, we present several new lower bounds for the minimum M-eigenvalue of elasticity M-tensors and propose numerical examples to illustrate the ...
Haitao Che, Haibin Chen, Na Xu, Qingni Zhu   +3 more
doaj   +1 more source

Terahertz Spoof Surface Plasmon Polariton Structure for High‐Precision Gas Sensor Technology

Advanced Photonics Research, EarlyView.
This study presents a high‐sensitivity THz sensor based on spoof surface plasmon polaritons, optimized for gas sensing. The multilayer structure enables placement of the sample material in the densest region of the plasmonic surface waves, enhancing interaction with THz waves and significantly improving sensitivity to small refractive index variations ...
Vahid Najafy, Bijan Abbasi‐Arand, Maryam Hesari‐Shermeh   +2 more
wiley   +1 more source

HUBO formulations for solving the eigenvalue problem

Results in Control and Optimization, 2023
Solving the eigenvalue problem is particularly important in almost all fields of science and engineering. With the development of quantum computers, multiple algorithms have been proposed for this purpose.
Kyungtaek Jun, Hyunju Lee
doaj  

Surface Elasticity Based Nonlocal Vibration Analysis of Bidirectional Functionally Graded Tapered Nanobeam

Advanced Theory and Simulations, EarlyView.
This work proposes a surface elasticity‐based nonlocal model for analyzing the vibrations of bi‐directionally graded tapered nanobeam. The results demonstrate that, in absence of surface effect, the increasing value of tapered parameter leads to stiffness‐hardening of the nanobeam. However, the consideration of surface effect changes this trend and the
Chinika Dangi, Susmita Naskar
wiley   +1 more source

Neural Plasticity and Hearing‐Speech Development in Children with Auditory Brainstem Implants for Congenital Hearing Loss Due to Severe Inner Ear Malformation

Advanced Science, EarlyView.
Data from a prospective cohort with 112 auditory brainstem implant users are analyzed. Younger age at implantation (<3 years), less severe inner‐ear malformation (common cavity, cochlear aplasia, and hypoplasia), and more intraoperative eABR evoked electrodes (≥60%) are associated with better hearing and speech outcomes.
Yu Zhang, Yongchuan Chai, Yiwen Zhang, Huan Jia, Zhaoyan Wang, Zhihua Zhang, Zhili Wang, Jie Chen, Xue Wang, Yun Li, Ying Chen, Hao Wu   +11 more
wiley   +1 more source

PP1A Modulates the Efficacy of Lenvatinib Plus ICIs Therapy by Inhibiting Ferroptosis in Hepatocellular Carcinoma

Advanced Science, EarlyView.
PP1A dephosphorylates Keap1 at the S104 site, stabilizing and promoting the nuclear translocation of Nrf2, which upregulates the expression of antioxidant genes and PD‐L1. This leads to suppressed ferroptosis and enhanced immune evasion, thereby improving the efficacy of TKI and ICI combination therapy.
Jitong Zhou, Meng Gao, Shikun Zhang, Wing‐Wa Guo, Wenzhi He, Minghe Zhang, Xi Chen, Cairang Dongzhi, Xiaomian Li, Yufeng Yuan, Weijie Ma   +10 more
wiley   +1 more source

A Universal Approach to Anchoring Chromophores onto Magnetic Scaffold for Achieving Easily Recyclable Heterogeneous Photocatalytic Systems

Advanced Science, EarlyView.
The practical application of chromophores such as porphyrins, coumarins, anthraquinones, and pyrene derivatives in photocatalysis is severely limited by catalyst stability and reusability. In this work, a simple and universal strategy is presented for preparing highly efficient and recyclable heterogeneous photocatalysts for the oxidative coupling of ...
Xuan Zhan, Yikun Wang, Chenyang Sun, Yuchen Fang, Lihua Huang, Zakir Ullah, Qiang Chen, Xuejing Wang, Zheng Xing, Gangfeng Ouyang   +9 more
wiley   +1 more source

Cooperative spectrum sensing algorithm based on limiting eigenvalue distribution

Tongxin xuebao, 2015
A novel maximum-minimum eigenvalue (NMME) cooperative spectrum sensing algorithm and threshold decision rule are proposed via analyzing minimum eigenvalue limiting distribution of the covariance matrix of the received signals from multiple cognitive ...
Yin MI, Guang-yue LU
doaj   +2 more sources

CeiTEA: Adaptive Hierarchy of Single Cells with Topological Entropy

Advanced Science, EarlyView.
CeiTEA, a novel hierarchical clustering algorithm based on topological entropy, effectively captures complex structures underlying data. By constructing an adaptive multi‐nary partition tree, CeiTEA reveals hierarchical structures and local diversifications, outperforming existing methods in clustering accuracy and consistency and providing the ...
Bowen Tan, Shiying Li, Mengbo Wang, Shuai Cheng Li   +3 more
wiley   +1 more source

Eigenvalue/eigenvector assignment using output feedback [PDF]

The problem of eigenvalue assignment in a linear time-invariant system using output feedback is considered. New sufficient conditions are derived to assign an almost arbitrary set of minimum (n,m + r - 1) distinct eigenvalues where n, m, and r are the ...
Srinathkumar, S.
core   +1 more source