Results 11 to 20 of about 312,289 (266)

Molecular Basis of Water Activity in Glycerol–Water Mixtures

open access: yesFrontiers in Chemistry, 2019
Water activity (Aw) is a reliable indication of the microbial growth, enzymatic activity, preservation, and quality of foods. However, a molecular basis of Aw is still under debate in multiple related disciplines.
Hiroshi Nakagawa, Taiji Oyama
doaj   +1 more source

Tooth Diversity Underpins Future Biomimetic Replications

open access: yesBiomimetics, 2023
Although the evolution of tooth structure seems highly conserved, remarkable diversity exists among species due to different living environments and survival requirements.
Di Wang, Shuangxia Han, Ming Yang
doaj   +1 more source

Influence of expansion on hierarchical structure [PDF]

open access: yesPhysical Review E, 2002
11 pages, 4 ...
Miller, Bruce N., Rouet, J. -L.
openaire   +3 more sources

Graphene Architecture-Supported Porous Cobalt–Iron Fluoride Nanosheets for Promoting the Oxygen Evolution Reaction

open access: yesNanomaterials, 2023
The design of efficient oxygen evolution reaction (OER) electrocatalysts is of great significance for improving the energy efficiency of water electrolysis for hydrogen production.
Yanhui Lu, Xu Han, Yiting Zhang, Xu Yu
doaj   +1 more source

Strategies for Improving the Stability of Tin‐Based Perovskite (ASnX3) Solar Cells

open access: yesAdvanced Science, 2020
Although lead‐based perovskite solar cells (PSCs) are highly efficient, the toxicity of lead (Pb) limits its large‐scale commercialization. As such, there is an urgent need to find alternatives. Many studies have examined tin‐based PSCs.
Huanhuan Yao   +5 more
doaj   +1 more source

Hierarchical Segmentation of Complex Structures [PDF]

open access: yes2010 20th International Conference on Pattern Recognition, 2010
We present an unsupervised hierarchical segmentation algorithm for detection of complex heterogeneous image structures that are comprised of simpler homogeneous primitive objects. An initial segmentation step produces regions corresponding to primitive objects with uniform spectral content.
Huseyin Gokhan Akcay   +2 more
openaire   +2 more sources

HIERARCHICAL STRUCTURE OF THE UNIVERSE

open access: yesOdessa Astronomical Publications, 2018
The modern understanding of the structure of the Universe is discussed. The Solar System is viewed as an ordinary planetary system. The neighbourhood of the Sun is specified starting with the nearest stars and nearby clusters and working outward through ...
V. A. Zakhozhay
doaj   +1 more source

Hierarchical structure in the trace formula*

open access: yesJournal of Physics A: Mathematical and Theoretical, 2022
Abstract Guztwiller’s trace formula is central to the semiclassical theory of quantum energy levels and spectral statistics in classically chaotic systems. Motivated by recent developments in random matrix theory and number theory, we elucidate a hierarchical structure in the way periodic orbits contribute to the trace formula that has ...
openaire   +3 more sources

HIERARCHICAL STRUCTURE OF A MULTI-AGENT SYSTEM

open access: yesИзмерение, мониторинг, управление, контроль, 2022
Background. Improving the efficiency of data collection and processing is necessary to ensure guaranteed trouble-free operation of information-measuring and control systems.
O.E. Bezborodova
doaj   +1 more source

Graph Regularized Hierarchical Diffusion Process With Relevance Feedback for Medical Image Retrieval

open access: yesIEEE Access, 2021
Befitting from the interpretability and the capacity in capturing the underlying manifold structure, diffusion process (DP) has attracted increasing attention in the field of image retrieval.
Liming Xu   +4 more
doaj   +1 more source

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