Results 121 to 130 of about 5,439,443 (343)

Does Beta React to Market Conditions? Estimates of Bull and Bear Betas using a Nonlinear Market Model with an Endogenous Threshold Parameter [PDF]

open access: yes
We apply a logistic smooth transition market model (LSTM) to a sample of returns on Australian industry portfolios to investigate whether bull and bear market betas differ.
George Woodward, Heather Anderson
core  

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

Magnetic Phase Transitions in One-dimensional Strongly Attractive Three-Component Ultracold Fermions

open access: yes, 2008
We investigate the nature of trions, pairing and quantum phase transitions in one-dimensional strongly attractive three-component ultracold fermions in external fields.
C. Lee   +4 more
core   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar   +6 more
wiley   +1 more source

On the Lightweight Potential of Laser Additive Manufactured NiTi Triply Periodic Minimal Sheet Lattices

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the lightweight potential of laser additive‐manufactured NiTi triply periodic minimal surface sheet lattices. It systematically investigates the effects of relative density and unit cell size on surface quality, deformation recovery, compression behavior, and energy absorption.
Haoming Mo   +3 more
wiley   +1 more source

Method of calculation of a smooth transition between two round waveguides based on the integral ratio of Lorentz

open access: yesФизика волновых процессов и радиотехнические системы, 2014
In this work demonstrated a general approach to the calculation of the transmission characteristics of a smooth transition between the two waveguides of round cross-section. Method of calculation is based on the integral ratio of Lorentz.
S.M. Garanin   +2 more
doaj  

Impact of Community-Based Complementary Feeding Education Program on Child-Feeding Knowledge and Practices of Caregivers at Polokwane Municipality, Limpopo Province, South Africa

open access: yesProceedings
Background: Optimal infant nutrition depends on smooth transition to appropriate complementary feeding [...]
Maishataba Solomon Makwela   +2 more
doaj   +1 more source

A SPATIAL ECONOMETRIC STAR MODEL WITH AN APPLICATION TO U.S. COUNTY ECONOMIC GROWTH, 1969-2003 [PDF]

open access: yes
Spatial regression models incorporating non-stationarity in the regression coefficients are popular. We propose a spatial variant of the Smooth Transition AutoRegressive (STAR) model that is more parsimonious than commonly used approaches and ...
Valerien O. Pede
core  

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