Results 61 to 70 of about 34,266 (260)
Double Helical Plasmonic Antennas
Advanced Functional Materials, EarlyView.Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin +7 more
wiley +1 more source
Padé approximants for finite time ruin probabilities
Journal of Computational and Applied Mathematics, 2015 In this article, we investigate Pade approximants of hyper-exponential to base on the first moments and the matrix-exponential representation of Pade approximated function. An explicit formula is given for the Laplace transform in the time to calculate finite time ruin probabilities of classical Cramer-Lundberg model.
openaire +2 more sources
Advanced Materials, EarlyView.The rise of lead halide perovskite semiconductors has enabled high‐performance LEDs with internal quantum efficiencies approaching 100%. In order to further enhance the external quantum efficiencies limited by light outcoupling effects, in this account, the strategies for reducing energy dissipation through the substrate, waveguide, and evanescent ...
Tommaso Marcato +2 more
wiley +1 more source
Advanced Materials Interfaces, EarlyView.The influence of copper oxidation states on TiO₂/ZSM‐5 catalysts is investigated for photocatalytic CO2 reduction to methanol. A Cuδ⁺‐modified Ti₂/ZSM‐5 catalyst (CTZ‐1) exhibits superior activity due to enhanced electronhole separation, the presence of Ti3⁺, and a core–shell structure.
Wibawa Hendra Saputera +10 more
wiley +1 more source
Advanced Materials Technologies, EarlyView.This study employs a CFD model to simulate laser cutting of copper current collectors used for Li‐Ion battery production. This model predicts cut edge quality by assessing the influence of power, scanner speed, and foil thickness. Defects are classified and an optimal working area is found.
Caterina Angeloni +3 more
wiley +1 more source
An Asymptotic Expression for the Probability of Ruin within Finite Time
The Annals of Probability, 1990 We consider quantities such as the probability that a two-dimensional random walk crosses the ordinate $y$ for the first time to the left of the abscissa $x$, and describe the asymptotic behaviour as $x$ and $y$ tend to $\infty$. The result is applied to the risk reserve process of insurance mathematics as well as to one-dimensional random walks.
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Advanced Science, EarlyView.The study innovatively integrates single‐cell electric impedance identification and drug screening on a semiconductor chip, addressing tumor heterogeneity limitations. The system achieves label‐free cancer cell recognition while concurrently evaluating drug efficacy on cancer cells and toxicity on noncancerous cells.
Wenhao Hui +13 more
wiley +1 more source
Operations Research and Decisions, 2015 The paper focuses on a quantitative analysis of the probability of ruin in a finite time for a discrete risk process with proportional reinsurance and investment of the financial surplus.
Helena Jasiulewicz, Wojciech Kordecki
doaj
Emerging Science JournalThe accurate estimation of ruin probability is a fundamental challenge in non-life insurance, impacting financial stability, risk management strategies, and operational decisions.
Weenakorn Ieosanurak, Adisak Moumeesri
doaj +1 more source
Advanced Science, EarlyView.Utilizing the special dual‐band absorption characteristics of Cs3BiCl6 and its strong surface‐charge recombination behavior, a self‐powered UV dual‐band photodetector based on Cs3BiCl6/GaN heterojunction is developed. As a result, the photodetector exhibits excellent specific detectivity of 1.23 × 1012 Jones and ultrafast response speed of τr/τf = 28 ...
Jingli Ma +11 more
wiley +1 more source