Results 81 to 90 of about 159,091 (287)

Kernel Ellipsoidal Trimming

open access: yes, 2005
Ellipsoid estimation is an issue of primary importance in many practical areas such as control, system identification, visual/audio tracking, experimental design, data mining, robust statistics and novelty/outlier detection.
Dolia, A.N.   +3 more
core   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

open access: yesAdvanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger   +11 more
wiley   +1 more source

Ellipsoidal set-membership estimation of systems with logarithmic quantized control input

open access: yesAutomatika
For networked control systems with logarithmic quantization, the state estimation is important. Different from the traditional state estimation methods where the uncertainties are assumed to have known probability distributions, the set-membership ...
Mingming Ji, Zhixiong Zhang
doaj   +1 more source

Geodesics on an ellipsoid of revolution [PDF]

open access: yes, 2011
Algorithms for the computation of the forward and inverse geodesic problems for an ellipsoid of revolution are derived. These are accurate to better than 15 nm when applied to the terrestrial ellipsoids.
Karney, Charles F. F.
core  

Biomimetic Iridescent Skin: Robust Prototissues Spontaneously Assembled from Photonic Protocells

open access: yesAdvanced Functional Materials, EarlyView.
Uniform nanoparticles are induced to form arrays (photonic crystals) in the cores of biopolymer capsules, endowing these ‘protocells’ with structural color. These protocells are then assembled into large self‐standing objects, i.e., prototissues, with robust mechanical properties as well as iridescent optical properties.
Medha Rath   +6 more
wiley   +1 more source

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz   +3 more
wiley   +1 more source

Design and Optimization of Standard Elliptical Head Liquid Redistributor

open access: yesTaiyuan Ligong Daxue xuebao
Purposes The liquid redistributor is an important internal component of packed bed reactor. Most liquid redistributors are optimized for gas-liquid solid coexisting systems, but in the process of lithium extraction from salt lake brine by adsorption, the
XIA Jingyu   +5 more
doaj   +1 more source

A new formulation of Stokes’ approach in determining the global gravimetric geoid

open access: yesAnnals of Geophysics, 2013
According to Stokes’ approach, given the gravity anomaly on the geoid as the boundary, a disturbing potential function satisfying some boundary conditions should be solved.
Wen-Bin Shen
doaj   +1 more source

Raman Microscopy at the Organic–Inorganic Interfaces in Human Calcified Aortic Valves Shows the Co‐Existence of Whitlockite Crystals and Carbonated Hydroxyapatite‐Mineralized Collagen Fibrils

open access: yesAdvanced Functional Materials, EarlyView.
This study advances our understanding of aortic valve stenosis by capturing spatially resolved chemical and structural changes at the nanoscale. The findings highlight the potential of combined Raman and electron microscopy for understanding calcification mechanisms across diverse tissue types.
Robin H. M. Van der Meijden   +11 more
wiley   +1 more source

REGRESIÓN Y CORRELACIÓN DE SUPERFICIES ÓPTICAS DE REVOLUCIÓN EN FORMA CANÓNICA CONOCIDOS LOS RADIOS DE CURVATURA REGRESSÃO E CORRELAÇÃO DE SUPERFÍCIES ÓPTICAS DE REVOLUÇÃO EM FORMA CANÔNICA CONHECIDOS OS RÁDIOS DE CURVATURA REGRESSION AND CORRELATION OF OPTICAL SURFACES OF REVOLUTION IN CANONICAL FORM KNOWN THE RADII OF CURVATURE

open access: yesRevista EIA, 2009
Se presentan tres modelos matemáticos para la regresión y correlación de una nube de N puntos en R3 con coordenadas cartesianas xj, yj como abscisas, con su respectiva ordenada ri como radio de curvatura de la sección axial o sagital, pero que no ...
Juan Camilo Valencia   +1 more
doaj  

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