Results 71 to 80 of about 2,669 (298)

A hybrid model for HIV transmission among men who have sex with men

open access: yesInfectious Disease Modelling, 2020
AIDS has spread throughout the world for decades. Men who have sex with men (MSM) is the harder-hit sector of sexually transmitted diseases due to their physiological characteristics.
Chongpeng Zhong, Mingzhu Sun, Wei Yao
doaj   +1 more source

Review of Thermally Activated Twisted Coiled Polymer Actuators: A Materials Science Perspective

open access: yesAdvanced Functional Materials, EarlyView.
Thermally activated twisted and coiled polymer actuators (TCPAs) combine lightweight design, large deformation, and scalable fabrication for soft robotic and wearable applications. This review connects polymer structure, processing history, helix geometry, and thermomechanical characterization to actuator performance, highlighting current challenges in
Nadja Schenk   +3 more
wiley   +1 more source

A Hybrid Automata-Driven Machine Learning Framework for Real-Time Energy Optimization in Smart Buildings [PDF]

open access: yesEPJ Web of Conferences
As city populations continue to expand, the need for effective energy management in smart buildings becomes essential to sustainable urban growth. Conventional energy forecasting techniques are usually not responsive to dynamic energy environments and ...
Rikame Rajashri   +5 more
doaj   +1 more source

What's decidable about hybrid automata?

open access: yesSymposium on the Theory of Computing, 1995
Hybrid automata model systems with both digital and analog components, such as embedded control programs. Many verification tasks for such programs can be expressed as reachability problems for hybrid automata.
T. Henzinger   +3 more
semanticscholar   +1 more source

Support‐Controlled Reaction Pathways via Dynamic Sulfur‐Mediated Interfaces for Selective Urea Electrolysis

open access: yesAdvanced Functional Materials, EarlyView.
Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler   +4 more
wiley   +1 more source

Packed for Ossification: High‐Density Bioprinting of hPDC Spheroids in HAMA Toward Endochondral Ossification

open access: yesAdvanced Healthcare Materials, EarlyView.
Human periosteum‐derived cell spheroids bioprinted at high density within a hyaluronic acid matrix promote fusion and hypertrophic cartilage formation in vitro. Early encapsulation enhances spheroid interaction and matrix maturation, generating scalable cartilage templates intended for endochondral bone regeneration.
Ane Albillos Sanchez   +6 more
wiley   +1 more source

Discrete Semantics for Hybrid Automata.

open access: yesDiscret. Event Dyn. Syst., 2009
Many natural systems exhibit a hybrid behavior characterized by a set of continuous laws which are switched by discrete events. Such behaviors can be described in a very natural way by a class of automata called hybrid automata. Their evolution are represented by both dynamical systems on dense domains and discrete transitions.
CASAGRANDE, Alberto   +2 more
openaire   +1 more source

Continuity and invariance in hybrid automata

open access: yesProceedings of the 40th IEEE Conference on Decision and Control (Cat. No.01CH37228), 2002
Hybrid automata have been proposed as a language for modelling and analysing the interaction of digital and analogue dynamics in embedded computer systems. In the paper, hybrid automata are studied from a dynamical systems perspective. Extending earlier work on conditions for existence and uniqueness of executions of hybrid automata, we characterise a ...
Lygeros, John   +4 more
openaire   +3 more sources

Plasmonic Enhancement of Fluorescence and Protein Dynamics in Living Mammalian Cells

open access: yesAdvanced Materials, EarlyView.
This study demonstrates plasmonic enhancement of the function of fluorescent voltage sensing proteins (genetically encoded voltage indicators, (GEVIs), QuasAr6) in live mammalian cells. Coupling to plasmonic nanoparticles does not just increase fluorescence, but influences the protein photocycle, creating a hybrid sensor with its response speed to ...
Marco Locarno   +16 more
wiley   +1 more source

Modeling and Simulation Based on the Hybrid System of Leasing Equipment Optimal Allocation

open access: yesDiscrete Dynamics in Nature and Society, 2015
Modeling of the hybrid system of leasing equipment optimal allocation and its optimal control methods are put forward based on the hybrid characteristics of succession and dispersion.
Ying Tian, Wei-qing Zhong
doaj   +1 more source

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