Results 81 to 90 of about 316,229 (292)

Purcell‐Enhanced Spectrally Precise Emission in Dual‐Microcavity Organic Light‐Emitting Diodes

open access: yesAdvanced Functional Materials, EarlyView.
Spectrally precise emission from broadband organic light‐emitting diodes is realized via a dual‐microcavity strategy. This architecture achieves narrowband emission (full width at half maximum, FWHM = 21 nm) with ultrapure color approaching BT.2020 by enhancing the Purcell effect via coupling of excitons with dual‐microcavity resonance.
Jun Yong Kim   +3 more
wiley   +1 more source

Mathematical modeling and strategy for optimal control of diphtheria

open access: yesResults in Control and Optimization
This research introduces a novel approach to combating diphtheria by presenting a comprehensive optimal control strategy focused on awareness campaigns to avoid direct contact with infected individuals and promote vaccinations. These campaigns highlight the severe complications of diphtheria, such as acute respiratory issues, myocarditis, and ...
Hicham Gourram   +5 more
openaire   +2 more sources

Smarter Sensors Through Machine Learning: Historical Insights and Emerging Trends across Sensor Technologies

open access: yesAdvanced Functional Materials, EarlyView.
This review highlights how machine learning (ML) algorithms are employed to enhance sensor performance, focusing on gas and physical sensors such as haptic and strain devices. By addressing current bottlenecks and enabling simultaneous improvement of multiple metrics, these approaches pave the way toward next‐generation, real‐world sensor applications.
Kichul Lee   +17 more
wiley   +1 more source

Synergistic Compatibilization of CsPbBr3 Perovskites and HfO2 Nanocrystals for Hybrid Sensitized Nanoscintillators

open access: yesAdvanced Functional Materials, EarlyView.
Lead halide perovskite nanocrystals are promising scintillators but suffer from reabsorption losses and limited compatibility with high‐Z additives. Hybridization of CsPbBr3 nanocrystals with PbBr2‐passivated HfO2 nanoparticle sensitizers, achieved during or after synthesis, produces stable composites with maintained optical quality, improved ...
Francesco Bruni   +17 more
wiley   +1 more source

Helicopter mathematical modelling and optimal controller design

open access: yes, 2015
In this bachelor thesis, a nonlinear mathematical model simulation and linear controller design for the U1-H1 helicopter was achieved. This thesis is divided into two parts. In the first part, the nonlinear dynamic model is developed using the Matrix Laboratory Software and Heli-Dyn R Software, which is a modeling and simulation tool for rotorcraft ...
openaire   +1 more source

Mathematical modelling: A student optimal control problem and extensions

open access: yesMathematical Modelling, 1985
An optimal control problem is introduced in this paper, a mathematical model for the behaviour of a lazy student who desires to pass a certain course with the least amount of work. The author solves the problem by fairly elementary methods involving the Cauchy-Schwartz-Buniakowsky inequality.
openaire   +2 more sources

Quantum‐Grade Nanodiamonds from a Single‐Step, Industrial‐Scale Pressure and Temperature Process

open access: yesAdvanced Functional Materials, EarlyView.
Novel method for creation of nitrogen‐vacancy centers in 50‐nm nanodiamonds based on high‐temperature plastic deformation is demonstrated. Compared to the electron irradiation approach, it yields nitrogen‐vacancy centers with significantly improved charge stability, T1 relaxation time, and optical Rabi contrast.
Yahua Bao   +17 more
wiley   +1 more source

A mathematical model of corruption dynamics and optimal control

open access: yesFranklin Open
Corruption, a pervasive societal ill, hinders economic, social, and political progress globally. This study develops a novel mathematical model to analyze the transmission dynamics of corruption. Utilizing Corruption Index data, the model introduces the Corruption Influence Number (CIN), a metric quantifying corruption’s societal impact.
Mostak Ahmed   +2 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy