Results 141 to 150 of about 740,617 (344)

Ultrafilter and Topological Entropy Of Complementary Topologies

open access: yesMissouri Journal of Mathematical Sciences, 1995
A topology $\tau$ on a set $X$ is called a complementary topology if for each open set $U$ in $\tau$, its complement $X-U$ is also in $\tau$. These topologies and maximal ideals were characterized by this author. In this paper the relations between maximal ideals of $\tau$ as a Boolean ring and ultrafilters in $\tau$ as a complementary topology have ...
openaire   +2 more sources

Interactions Between Active Matters and Endogenous Fields

open access: yesAdvanced Materials, EarlyView.
This review synthesizes endogenous field information and computational methods in contexts such as cancer, wounds, and biofilms. It organizes NAMs and AAMs by sensing, transmitting, and executing functions, compares their limitations, and from these contrasts proposes design strategies for next‐generation AAMs, offering perspectives to foster ...
Jinwei Lin   +6 more
wiley   +1 more source

Lifting of Topological Entropy [PDF]

open access: yesProceedings of the American Mathematical Society, 1970
openaire   +3 more sources

Computing the topological entropy of shifts

open access: yesMathematical Logic Quarterly, 2007
AbstractDifferent characterizations of classes of shift dynamical systems via labeled digraphs, languages, and sets of forbidden words are investigated. The corresponding naming systems are analyzed according to reducibility and particularly with regard to the computability of the topological entropy relative to the presented naming systems.
openaire   +3 more sources

Néel Tensor Torque in Polycrystalline Antiferromagnets

open access: yesAdvanced Materials, EarlyView.
This work introduces a Néel tensor torque based on a rank‐two symmetric tensor capturing spin correlations in a polycrystalline antiferromagnet. It shows the Néel tensor can be shaped and reshaped through the spin‐orbit torque (SOT) technique, enabling field‐free SOT switching with a specific polarity of the adjacent ferromagnet. This discovery opens a
Chao‐Yao Yang   +4 more
wiley   +1 more source

Genetic Surfaceome E. coli Reprogramming Enables Selective Water Oxidation

open access: yesAdvanced Materials, EarlyView.
A novel enzymatic material based on bilirubin oxidase (BOD) surface‐expressed on E. coli for effective electrocatalysis is reported. With this material, highly efficient and selective water oxidation is achieved, a critical half reaction for synthetic photosynthesis. Abstract Programming catalytic behavior at the microbial genome level is a frontier in
Graziela C. Sedenho   +6 more
wiley   +1 more source

Assessing the possibility of using the method of image decomposition based on topological features to reduce entropy during their compression

open access: yesНаучно-технический вестник информационных технологий, механики и оптики
The rapid increase in the volume of visual information on the internet stimulates the improvement and search for new approaches to solving the problem of image compression.
A. V. Abakumov, S. V. Eremeev
doaj   +1 more source

Design Strategies and Roles of Hydrogels for Sustainable Energy Conversion and Harvesting from Natural and Biological Environments

open access: yesAdvanced Materials, EarlyView.
This review examines hydrogel‐based technologies driven by environmental stimuli and emphasizes their unique contributions to energy conversion. It provides insights into design strategies and recent advancements in functional hydrogels, highlighting opportunities and challenges in this field.
Wanheng Lu   +5 more
wiley   +1 more source

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