Results 131 to 140 of about 305,187 (339)

Determining Exciton Diffusion Length in Organic Semiconductors: Unifying Macro‐ and Microscopic Perspectives

open access: yesAdvanced Energy Materials, EarlyView.
Exciton diffusion length in organic semiconductor films is determined from encounter/annihilation rates. Non‐normalized exciton densities and proper intrinsic lifetime reference avoid over‐parametrization of the fits. Monte Carlo Simulation of individual molecule‐to‐molecule hops reproduce these results (②) when matching lattice constant and hoping ...
Wenchao Yang   +12 more
wiley   +1 more source

Nested Selves: Self‐Organization and Shared Markov Blankets in Prenatal Development in Humans

open access: yesTopics in Cognitive Science, EarlyView., 2023
Abstract The immune system is a central component of organismic function in humans. This paper addresses self‐organization of biological systems in relation to—and nested within—other biological systems in pregnancy. Pregnancy constitutes a fundamental state for human embodiment and a key step in the evolution and conservation of our species. While not
Anna Ciaunica   +3 more
wiley   +1 more source

Cation Mg‐Dominated Coherent Phonon Transport Leads to Anomalous Thermal Conductivity in Mg3Bi2

open access: yesAdvanced Energy Materials, EarlyView.
Weakly bonded cation Mg atoms in Mg3Bi2 enhance coherent phonon transport, contributing 40% to thermal conductivity at 600 K. A unified theoretical framework and experimental validation reveal that strong anharmonicity from cation Mg suppresses particle‐like transport via four‐phonon scattering.
Minhui Yuan   +9 more
wiley   +1 more source

Fractional Laplasians and propagation of waves in three-dimensional space as quantum process

open access: yesФизика волновых процессов и радиотехнические системы, 2016
In this paper it is shown that in the whole range of problems of waves propagation there is hidden feynmanon. We call by feynmanon the quantum object moving along fractal trajectories in phase space of dynamical system related with wave equation ...
A.A. Potapov, A.E. Rassadin
doaj  

Foliation-Based Approach to Quantum Gravity and Applications to Astrophysics

open access: yesUniverse, 2019
The recently proposed holography-inspired approach to quantum gravity is reviewed and expanded. The approach is based on the foliation of the background spacetime and reduction of the offshell states to the physical states.
Inyong Park
doaj   +1 more source

A Comprehensive Coordinate Space Renormalization of Quantum Electrodynamics to 2-Loop Order

open access: yes, 1992
We develop a coordinate space renormalization of massless Quantum Electrodynamics using the powerful method of differential renormalization. Bare one-loop amplitudes are finite at non-coincident external points, but do not accept a Fourier transform into
Haagensen, Peter E., Latorre, Jose I.
core   +2 more sources

Suppressed Thermal Conductivity in van der Waals Semiconductor SnS2 by Stacking Engineering

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
Achieving low thermal conductivity is crucial for materials used for thermoelectric energy conversion. It is demonstrated that the lattice thermal conductivity of van der Waals semiconductor SnS2 can be significantly reduced by introducing 2H and 4H structures stacked along the c‐axis.
Han Yang   +5 more
wiley   +1 more source

A Novel Semi‐Automated Pipeline for Optimizing 3D‐Printed Drug Formulations

open access: yesAdvanced Intelligent Systems, EarlyView.
A novel, semi‐automated deep learning and differential evolution pipeline designed for generating medicines for 3D‐printed medicines is introduced. This pipeline successfully generates a diverse range of drug formulations with an 80% printing success rate and 92% accuracy in predicting printing parameters.
Youssef Abdalla   +8 more
wiley   +1 more source

Assessing the Effect of Large Igneous Provinces on Global Oceanic Redox Conditions Using Non‐traditional Metal Isotopes (Molybdenum, Uranium, Thallium)

open access: yesGeophysical Monograph Series, Page 305-323., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Brian Kendall   +2 more
wiley  

+1 more source

The analytic renormalization group

open access: yesNuclear Physics B, 2016
Finite temperature Euclidean two-point functions in quantum mechanics or quantum field theory are characterized by a discrete set of Fourier coefficients $G_{k}$, $k\in\mathbb Z$, associated with the Matsubara frequencies $ _{k}=2 k/ $. We show that analyticity implies that the coefficients $G_{k}$ must satisfy an infinite number of model ...
Frank Ferrari, Frank Ferrari
openaire   +5 more sources

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