Results 81 to 90 of about 233,915 (272)

Differential image motion in the short exposure regime

, 2011
Whole atmosphere seeing \beta_0 is the most important parameter in site testing measurements. Estimation of the seeing from a variance of differential image motion is always biased by a non-zero DIMM exposure, which results in a wind smoothing.
B. Safonov, Conan, Fried, Fried, Gradstein, Kellerer, Kornilov, Kornilov, Kornilov, Kornilov, Kornilov, Martin, Sarazin, Sarazin, Soules, Tokovinin, Tokovinin, Tokovinin, V. Kornilov, Vernin   +19 more
core   +1 more source

Bivariate natural exponential families with quadratic diagonal of the variance function

, 2015
We characterize bivariate natural exponential families having the diagonal of the variance function of the form \[ \textrm{diag} V(m_1,m_2)=\left(Am_1^2+am_1+bm_2+e,Am_2^2+cm_1+dm_2+f\right), \] with $A<0$ and $a,\ldots,f\in\mathbb{R}$. The solution of the problem relies on finding the conditions under which a specific parametric family of functions
openaire   +2 more sources

Triplet‐Triplet Annihilation Enhances Photochemical Curing Contrast for Vat‐Based 3D Printing

Advanced Functional Materials, EarlyView.
Triplet–triplet annihilation photopolymerization (TTAP) resins enhance curing contrast for digital light processing (DLP) 3D printing compared to conventional Type I and II photopolymerizations at matched optical densities. By exploiting a superlinear initiation response, TTAP preserves fine details, allowing reliable fabrication of complex structures ...
Connor J. O'Dea, Evan P. Scruggs, Zachariah A. Page   +2 more
wiley   +1 more source

UTILIZAÇÃO DE DIFERENTES ESTRUTURAS DE VARIÂNCIA RESIDUAL EM MODELOS DE REGRESSÃO ALEATÓRIA PARA DESCRIÇÃO DA CURVA DE CRESCIMENTO DE PERDIZES (Rhynchotus rufescens) CRIADAS EM CATIVEIRO

Revista Caatinga, 2008
Random regression models (RRM) allows considering heterogeneous residual variances to describe the growth for each age. However, this feature increases the number of parameters to be estimated in the maximization likelihood function process.
Patrícia Tholon, Sandra Aidar de Queiroz   +1 more
doaj  

Self-Regulating Fuzzy-LQR Control of an Inverted Pendulum System via Adaptive Hyperbolic Error Modulation

Machines
This study introduces an innovative self-regulating intelligent optimal balancing control framework for inverted pendulum-type mechatronic platforms, designed to enhance reference tracking accuracy and improve disturbance rejection capability.
Omer Saleem, Jamshed Iqbal, Soltan Alharbi   +2 more
doaj   +1 more source

The Relationship between Handedness and Mathematics Is Non-linear and Is Moderated by Gender, Age, and Type of Task

Frontiers in Psychology, 2017
The relationship between handedness and mathematical ability is still highly controversial. While some researchers have claimed that left-handers are gifted in mathematics and strong right-handers perform the worst in mathematical tasks, others have more
Giovanni Sala, Michela Signorelli, Giulia Barsuola, Martina Bolognese, Fernand Gobet   +4 more
doaj   +1 more source

Halide‐Dependent Photoluminescence and Heavy‐Atom Effects in Low‐Melting Organic–Inorganic Manganese Halides

Advanced Functional Materials, EarlyView.
Two pyridinium‐based ionic liquid templated hybrid manganese halides, (C4Py)2[MnCl4] and (C4Py)2[MnBr4], display similar bulk structures but show significantly different photoluminescence behaviors due to the bromine heavy‐atom effect. Their stable local Mn environments remain intact even in the molten state, allowing applications such as luminescence ...
Biswajit Bhattacharyya, Christian Balischewski, Jiyong Kim, Tiago Duarte, Lianshe Fu, Rute A.S. Ferreira, Alkit Beqiraj, Iuliia Mikulska, Diego Gianolio, Eric Sperlich, Felix Stete, Wouter Koopman, Christina Günter, Katlen Brennenstuhl, Daniel Van Opdenbosch, Cordt Zollfrank, Armin Wedel, Beth J. Murray, Małgorzata Swadźba‐Kwaśny, Tillmann Klamroth, Michael U. Kumke, Verónica de Zea Bermudez, Andreas Taubert   +22 more
wiley   +1 more source

Disturbance Rejection and Uncertainty Analysis in Wind Turbines Using Model Predictive Control

Energies
For effective wind turbine operations, it is essential to maintain the power limit and reduce the stress on the drive train in the presence of disturbance and uncertain conditions.
Alok Kumar, Atul Kelkar
doaj   +1 more source

Ultrasmall Platinum Nanoparticles for Radiation‐Enhanced Cancer Therapy

Advanced Functional Materials, EarlyView.
This work proposes a nanomedicine‐based strategy to enhance X‐ray radiotherapy for cancer treatment. Ultrasmall Pt‐NPs exhibit catalase‐like activity that may contribute to modulation of the tumor microenvironment and amplify interactions between radiation and biological matter, leading to increased DNA damage.
Miguel Encinas‐Gimenez, Jose I. Garcia‐Peiro, Jose L. Hueso, Eduardo Caleiras, Laura Notario, Felipe Hornos, Pilar Martin‐Duque, Antonio De la Vieja, Jesus Santamaria   +8 more
wiley   +1 more source

Observation of Two‐Photon Resonant Raman Scattering via the Biexciton Level in Two‐Dimensional Halide Perovskite (C6H5C2H4NH3)2PbI4

Advanced Functional Materials, EarlyView.
Efficient two‐photon resonant Raman scattering (TRRS) is observed in the layered perovskite (PEA)2PbI4, with the biexciton level acting as an intermediate state. TRRS undergoes two‐photon frequency shift upon input frequency tuning, persists up to 90 K, and shows clear threshold behavior and polarization selection rules.
Seung Han Shin, Seo Hyun Nam, Jeehong Park, Dong Gyu Lee, Jeong Bin Cho, Tae Jung Kim, Yeonjin Yi, Joon Ik Jang   +7 more
wiley   +1 more source