Results 81 to 90 of about 395,045 (283)

Water‐Immersed GaP Huygens’ Meta‐Optics for Visible Structured Light Generation

Advanced Science
Underwater photonics is essential for imaging and analysis in biomedical technologies, as well as for communication and autonomous vehicle networks in the Internet of Underwater Things (IoUT).
Jia‐Hua Lee, Hsing‐Yi Wang, Pei Ying Ho, Yu Chia Chung, Ruei‐Tzu Duh, Cheng‐Ching Chiang, Ray‐Hua Horng, Yao‐Wei Huang, Ming Lun Tseng   +8 more
doaj   +1 more source

Research on solar photovoltaic panel layout based on compressed LiDAR point cloud

Frontiers in Earth Science
Solar photovoltaic (PV) panels convert solar energy into clean, renewable electricity. Their efficiency and sustainable application are highly dependent on precise terrain analysis and optimal site selection.
Baofeng Wan, Baofeng Wan, Kai Qin, Hongbin Shi, Xiaolun Zhang, Yuanfen Huan, Yafu Yang   +6 more
doaj   +1 more source

Existence of inverse integrating factors and Lie symmetries for degenerate planar centers

Journal of Differential Equations, 2012
In this paper, the authors prove that every analytic planar vector field \(X\) with an isolated (possibly degenerate) center singularity at \(0\in\mathbb{R}^2\) admits a smooth inverse integrating factor (IIF) on a neighbourhood \(B\) of \(0\) that is positive in \(B-\{0\}\) and flat at the origin.
Giné, Jaume, Peralta-Salas, Daniel
openaire   +2 more sources

Fluid and Neuroimaging Biomarkers in Microgliopathy Colony‐Stimulating Factor‐1 Receptor‐Related Disorders

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective This study aims to identify both fluid and neuroimaging biomarkers for CSF1R‐RD that can inform the optimal timing of treatment administration to maximize therapeutic benefit, while also providing sensitive quantitative measurements to monitor disease progression.
Tomasz Chmiela, Madison Reeves, Karen Jansen‐West, Judith Dunmore, Yuping Song, Audrey Strongosky, Sunil Gandhi, Gilana Pikover, Matt Blurton‐Jones, Robert C. Spitale, Erik H. Middlebrooks, Leonard Petrucelli, Mercedes Prudencio, Zbigniew K. Wszolek   +13 more
wiley   +1 more source

The Jacobian Conjecture as a Problem of Perturbative Quantum Field Theory

, 2002
The Jacobian conjecture is an old unsolved problem in mathematics, which has been unsuccessfully attacked from many different angles. We add here another point of view pertaining to the so called formal inverse approach, that of perturbative quantum ...
Abdesselam, A.
core   +2 more sources

The inverse integrating factor for some classes of n-th order autonomous differential systems

Journal of Mathematical Analysis and Applications, 2015
Consider an \(n\)-order autonomous differential system \[ \dot{x}=p(x), \eqno{(1)} \] where \(x=(x_1,x_2,\ldots,x_n) \in D \subseteq \mathbb{R}^n\) and \(p(x)=(p_1(x),p_2(x),\ldots,p_n(x))\), with \(p_i\in C^1(D, \mathbb R)\) functions in \(D\). The vector field associated to system (1) is denoted by \[ \mathcal{X}= \sum_{i=1}^n p_i(x) \frac{\partial}{\
Hu, Yanxia, Chen, Yi
openaire   +1 more source

Changes in Immune‐Inflammation Status and Acute Ischemic Stroke Prognosis in Prospective Cohort

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Inflammation is a critical risk factor for poor outcomes in cerebral infarction. Prior studies focused primarily on baseline inflammation status, neglecting dynamic longitudinal changes. We try to investigate the association between immune‐inflammation status alterations and stroke prognosis, and evaluated three systemic biomarkers'
Songfang Chen, Wenting Huang, Yitian Liu, Xuan Chen, Buyu Ke, Qian Shen, Hanyu Cai, Jing Sun, Yan Li, Yungang Cao, Beilei Hu, Keyang Chen   +11 more
wiley   +1 more source

Symplectic Microgeometry III: Monoids

, 2011
We show that the category of Poisson manifolds and Poisson maps, the category of symplectic microgroupoids and lagrangian submicrogroupoids (as morphisms), and the category of monoids and monoid morphisms in the microsymplectic category are equivalent ...
Cattaneo, Alberto S., Dherin, Benoit, Weinstein, Alan   +2 more
core   +1 more source

Existence of an inverse integrating factor, center problem and integrability of a class of nilpotent systems

Chaos, Solitons & Fractals, 2012
We characterize the nilpotent systems whose lowest degree quasi-homogeneous term is (y,σxn)T, σ=±1, having a formal inverse integrating factor. We prove that, for n even, the systems with formal inverse integrating factor are formally orbital equivalent to (x˙,y˙)T=(y,xn)T. In the case n odd, we give a formal normal form that characterizes them.
Algaba Durán, Antonio, García García, Cristóbal, Reyes Columé, Manuel   +2 more
openaire   +3 more sources

The McCance Brain Care Score and Mortality: Evidence From a Large‐Scale Population‐Based Cohort

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives This study aimed to examine the relationship between the McCance Brain Care Score (BCS) and mortality in the general population. Methods We conducted a prospective, population‐based cohort study using data from the UK Biobank. Participants with complete data enabling calculation of BCS and full mortality information were included ...
Zhiqiang Xu, Xiaoxiao Wang, Nan Li
wiley   +1 more source