Results 81 to 90 of about 1,239,591 (239)

Sticker Valence Governs Chain Collapse and Liquid‐Liquid Phase Separation in Peptide‐Inspired Associative Polymers

open access: yesAdvanced Science, EarlyView.
Peptide‐inspired associative polymers with arginine‐like guanidinium stickers and lysine‐like ammonium spacers undergo chain collapse and liquid‐liquid phase separation induced by reversible sticker associations. Sticker valence and tunable association strength jointly control the phase behavior, chain conformation, and interfacial cohesion of these ...
Seung‐Hwan Oh   +7 more
wiley   +1 more source

Speeding Up Sequential Markov Chain Monte Carlo Methods in the Context of Large Volumes of Data From Distributed Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks
Advances in digital sensors, digital data storage, and communications have resulted in systems being capable of accumulating large collections of data.
Allan De Freitas   +2 more
doaj   +1 more source

On state estimation in multi-sensor fusion navigation: optimization and filtering

open access: yesGeo-spatial Information Science
High-precision estimation of position and orientation is essential for perception and decision-making in autonomous vehicles and intelligent robots. Modern systems achieve this through multi-sensor fusion, which can be formulated as a state estimation ...
Feng Zhu   +5 more
doaj   +1 more source

Entropy‐Driven Physical Amplification in Multivalent Biosensing

open access: yesAdvanced Science, EarlyView.
Detecting scarce molecules usually demands enzymatic amplification such as PCR. A statistical‐mechanical theory now reveals a purely physical alternative: distributing a fixed binding strength over more linker arms exponentially lowers the concentration at which multivalent sensors switch on.
Yuhan Peng, Xiuyang Xia, Ran Ni
wiley   +1 more source

Pilot-Free Common Phase Error Estimation for CO-OFDM With Improved Spectral Efficiency

open access: yesIEEE Photonics Journal, 2019
We propose an improved pilot free phase noise mitigation algorithm for CO-OFDM systems using weighted multi-level QPSK partitioning and Kalman filtering. Through extensive Monte Carlo simulations, we demonstrate an improvement in spectral efficiency of $&
Lakshmi Narayanan Venkatasubramani   +3 more
doaj   +1 more source

Low Latency Global Carbon Budget Reveals Late 2024 Carbon Losses and Contrasting Early 2025 Land Sink Recovery Signals

open access: yesAdvanced Science, EarlyView.
Low latency carbon budget estimates for July 2024–June 2025 combine atmospheric CO2 growth rates, fossil emissions, ocean uptake, DGVM land fluxes, and OCO‐2 inversions. The budget shows that late‐2024 land carbon losses dominate the annual anomaly, while early‐2025 recovery differs between bottom‐up models and top‐down inversions, especially in ...
Piyu Ke   +32 more
wiley   +1 more source

Analysing multi-level Monte Carlo for options with non-globally Lipschitz payoff [PDF]

open access: yes, 2009
Giles (Multilevel Monte Carlo path simulation Operations Research, 2008; 56:607-617) introduced a multi-level Monte Carlo method for approximating the expected value of a function of a stochastic differential equation solution.
Higham, Desmond J.   +2 more
core   +2 more sources

Strongly Anisotropic and Rapid Excitons Transport in Organic Crystal

open access: yesAdvanced Science, EarlyView.
The increased exciton diffusion length is beneficial to simplify device design and enhance photoelectric conversion efficiency. But the isotropic exciton diffusion may lead to reduced transport efficiency directed to the charge separation site. Here we have successfully achieved strongly anisotropic and rapid excitons transport in thienopyrrole ...
Minjie Li   +6 more
wiley   +1 more source

Cross‐scale Material‐Structure Synergy for 2D Metamaterials: Toward Customizable Intelligent Electromagnetic Manipulation in Multiphysics Fields

open access: yesAdvanced Science, EarlyView.
Recent advances in metasurface‐enabled low‐observable technologies are reviewed from the perspective of cross‐scale material–structure synergy. Electromagnetic, thermal, optical, and acoustic stealth are highlighted together with dynamic tuning, programmable coding, data‐driven inverse design, artificial intelligence, multispectral compatibility, and ...
Shuhao Wang   +5 more
wiley   +1 more source

Adaptive Network Stabilization Despite Profound Structural Reorganization in Human Organotypic Cultures

open access: yesAdvanced Science, EarlyView.
Adult human organotypic cortical slices undergo marked neuronal loss, laminar disruption, and glial activation, yet their network activity progressively stabilizes after a variable period. Electrophysiology, longitudinal calcium imaging, and quantitative histology show that structurally remodeled human circuits show adaptive capacity resulting in ...
Estilla Zsófia Tóth   +20 more
wiley   +1 more source

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