Results 161 to 170 of about 36,154 (311)

An Efficient Quasi‐Static Condensation‐Based Framework for Seismic Analysis of Multi‐Supported Secondary Structures

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Multi‐supported non‐structural components (NSCs) are prone to seismic damage, yet their response prediction remains challenging when support motions are spatially incoherent. This study proposes an enhanced quasi‐static condensation (EQSC) method for linear, lightweight, dynamically detuned multi‐supported NSCs under the neglect of primary ...
Duozhi Wang   +5 more
wiley   +1 more source

Characteristics, Motivators, and Enablers of Educators Who Earn Many Micro‐Credentials

open access: yesFuture in Educational Research, EarlyView.
ABSTRACT This study explores the characteristics, motivators, and enablers of US educators, who earned more than ten micro‐credentials. Although research exists on attitudes and motivators associated with educators newly engaging with micro‐credentials, it lacks insights into learners earning many micro‐credentials.
Marilys Galindo   +1 more
wiley   +1 more source

TWO-GRID METHODS FOR MAXWELL EIGENVALUE PROBLEMS. [PDF]

open access: yesSIAM J Numer Anal, 2014
Zhou J, Hu X, Zhong L, Shu S, Chen L.
europepmc   +1 more source

Examining the Effect of Virtual Reality‐Based Environmental Education on Creative Problem‐Solving Skills

open access: yesFuture in Educational Research, EarlyView.
ABSTRACT The aim of this study is to examine the effect of participation in the virtual reality‐based environmental education (VRBEE) program on the creative problem‐solving (CPS) skills of middle school students in Turkey. The research was conducted with 125 students from a public middle school, and their CPS skills were assessed using a pre‐test–post‐
Fatih Pala
wiley   +1 more source

Hamiltonian eigenvalue symmetry for quadratic operator eigenvalue problems

open access: yes, 2006
When the eigenvalues of a given eigenvalue problem are symmetric with respect to the real and the imaginary axes, we speak about a Hamiltonian eigenvalue symmetry or a Hamiltonian structure of the spectrum. This property can be exploited for an efficient
Pester, Cornelia
core  

Intraday Functional PCA Forecasting of Cryptocurrency Returns

open access: yesJournal of Forecasting, EarlyView.
ABSTRACT We study the functional PCA (FPCA) forecasting method in application to functions of intraday returns on Bitcoin. We show that improved interval forecasts of future return functions are obtained when the conditional heteroscedasticity of return functions is taken into account.
Joann Jasiak, Cheng Zhong
wiley   +1 more source

Convergence rates of eigenvalue problems in perforated domains: the case of small volume

open access: yesAdvanced Nonlinear Studies
This paper is concerned with the Dirichlet eigenvalue problem for Laplace operator in a bounded domain with periodic perforation in the case of small volume.
Shen Zhongwei, Zhuge Jinping
doaj   +1 more source

Forecasting With Dynamic Factor Models Estimated by Partial Least Squares

open access: yesJournal of Forecasting, EarlyView.
ABSTRACT Dynamic factor models (DFMs) have found great success in nowcasting and short‐term macroeconomic forecasting when incorporating large sets of predictive information. The factor loadings are typically estimated cross‐sectionally with principal component analysis (PCA) or maximum likelihood (ML), which ignore whether the factors have predictive ...
Samuel Rauhala
wiley   +1 more source

Eigenvalue computations for regular matrix Sturm-Liouville problems

open access: yesElectronic Journal of Differential Equations, 1995
of regular self-adjoint Sturm-Liouville problems with matrix coefficients and separated boundary conditions.
H. I. Dwyer, A. Zettl
doaj  

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