Results 61 to 70 of about 2,131,875 (378)

Unveiling Phonon Contributions to Thermal Conductivity and the Applicability of the Wiedemann—Franz Law in Ruthenium and Tungsten Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Thermal transport in Ru and W thin films is studied using steady‐state thermoreflectance, ultrafast pump–probe spectroscopy, infrared‐visible spectroscopy, and computations. Significant Lorenz number deviations reveal strong phonon contributions, reaching 45% in Ru and 62% in W.
Md. Rafiqul Islam   +14 more
wiley   +1 more source

Income inequality in Mashhad Bus Lines based on [PDF]

open access: yesمدلسازی اقتصادسنجی, 2014
Several indexes and measures have been introduced in the field of economic inequality. Zenga in 2007 introduce a new index which as an alternative to the Gini coefficient.
Seyed Jamal Khorashadizade   +2 more
doaj   +1 more source

Shapeshifting Liquid Metal Droplets for Soft Fluidic Machines

open access: yesAdvanced Materials, EarlyView.
This study presented a liquid metal shape shifting strategy which harnesses Lorentz force, surface tension and fluid instabilities to achieve autonomous fluidic power. By using a liquid metal droplet as a mobile current carrier, this strategy enables the development of low‐voltage, self‐oscillating pumps that outperform existing soft pumps.
Saba Firouznia   +5 more
wiley   +1 more source

Estimating Lorenz Curves Using a Dirichlet Distribution [PDF]

open access: yes
The Lorenz curve relates the cumulative proportion of income to the cumulative proportion of population. When a particular functional form of the Lorenz curve is specified it is typically estimated by linear or nonlinear least squares assuming that the ...
Duangkamon Chotikapanich   +1 more
core   +3 more sources

Characterization of Complex Stacking of Semiconductors Through Near Field Imaging and Spectroscopy

open access: yesAdvanced Materials, EarlyView.
SNOM imaging and spectroscopy on a mechanically cleaved facet is used to characterize the different layers of complex epitaxial heterostructures composed of a type II superlattice and highly doped semiconductors. Both the geometrical parameters of the stack and the optical properties of the individual layers and of the interfaces are retrieved, as well
Laure Tailpied   +8 more
wiley   +1 more source

From Inequality to Extremes and Back: A Lorenz Representation of the Pickands Dependence Function

open access: yesMathematics
We establish a correspondence between Lorenz curves and Pickands dependence functions, thereby reframing the construction of any bivariate extreme-value copula as an inequality problem.
Pasquale Cirillo, Andrea Fontanari
doaj   +1 more source

Spatiotemporal Reservoir Computing with a Reconfigurable Multifunctional Memristor Array

open access: yesAdvanced Materials, EarlyView.
This study presents a hardware physical reservoir computing system using a tri‐modal memristive crossbar array. Stochastic masking, bistable nonlinear activation, and analog readout enable fully in‐memory spatiotemporal processing. Demonstrations on cellular automata, Lorenz prediction, ADHD EEG classification, and chaotic KS modeling highlight its ...
Sungho Kim   +10 more
wiley   +1 more source

Optimization of Gini Coefficient Affected by Imperfect Input Data

open access: yesEuropean Journal of Business Science and Technology, 2019
Most indicators used for determining the distributional effects of taxes as well as the inequality in the income distribution are based on the Gini coefficient and the Lorenz curve to a substantial extent, although the potential application of the Gini ...
Petr David
doaj   +1 more source

Bonferroni and Gini Indices and Recurrence Relations for Moments of Progressive Type-II Right Censored Order Statistics from Marshall-Olkin Exponential Distribution [PDF]

open access: yesJournal of Statistical Theory and Applications (JSTA), 2013
In this paper, we derive explicit expressions for Bonferroni Curve (BC), Bonferroni index (BI), Lorenz Curve (LC) and Gini index (GI) for the Marshall-Olikn Exponential (MOE) distribution, which have mainly concern with some aspects like poverty, welfare,
Narinder Pushkarna   +2 more
doaj   +1 more source

Atomistic Mechanisms Triggered by Joule Heating Effects in Metallic Cu‐Bi Nanowires for Spintronics

open access: yesAdvanced Materials, EarlyView.
Bi doped metallic Cu nanowires are promising for spintronics thanks to the stabilization of a giant spin Hall effect. However, heat resulting from current injection forces Bi to leave solution, forcing segregation into monoatomic decorations which evolve into coherent crystalline aggregates.
Alejandra Guedeja‐Marrón   +6 more
wiley   +1 more source

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