Results 71 to 80 of about 106,609 (287)

On the Topological Structure of Some Ordered Families of Distributions

The Annals of Mathematical Statistics, 1964
Abstract : The consequences are investigated of the order relation on the structure of the family distribution. Among other, it is shown that a nondegenerate family of distributions (i.e. a family containing at most a countable number of isolated degenerate distribution) is dominated, if it is ordered (2).
openaire   +3 more sources

Domain Wall Rebounds Driven by Competing Entropic and Spin‐Transfer Torques in Cylindrical Nanowires

Advanced Functional Materials, EarlyView.
Domain‐wall motion in cylindrical magnetic nanowires driven by nanosecond current pulses. Low current densities efficiently displace domain walls, whereas higher currents cause rebound at the wire ends. The effect results from the interplay between spin‐transfer torque and thermally induced processes, highlighting the role of thermal gradients in ...
Elias Saugar, Jorge Marqués‐Marchán, Sara Catalano, Agustina Asenjo, Michael Foerster, Miguel Angel Niño, Manuel Vazquez, Fèlix Casanova, Arantxa Fraile Rodríguez, Rafael P. Del Real, Oksana Chubykalo‐Fesenko, Cristina Bran   +11 more
wiley   +1 more source

A Novel Approach to Topological Indices of the Identity Graph Associated with the Finite Group

Jurnal Diferensial
Graph theory is applied to study network structures in various disciplines, such as computer science and discrete mathematics. The combination of graphs and algebra has become a widely discussed topic in research within the fields of algebra and ...
Abdul Gazir Syarifudin, Muhammad Naoval Husni, Marena Rahayu Gayatri, Laila Maya Santi, Qori Yusuf Pangestu   +4 more
doaj   +1 more source

Stacking‐Engineered Magnonic Topology and Transport in Honeycomb Homobilayers

Advanced Functional Materials, EarlyView.
ABSTRACT Topological magnons have emerged as a promising platform for dissipationless bosonic transport. However, a straightforward and effective strategy to engineer such topological states in real materials has yet to be fully realized. Here, a general scheme for controlling magnonic topological states via stacking engineering in van der Waals ...
Xiaoran Feng, Yingxi Bai, Bo Yuan, Ying Dai, Baibiao Huang, Chengwang Niu, Xiaotian Wang   +6 more
wiley   +1 more source

Polarizability of electrically induced magnetic vortex “atoms”

EPJ Web of Conferences, 2018
Electric field control of magnetic structures, particularly topological defects in magnetoelectric materials, draws a great attention, which has led to experimental success in creation and manipulation of single magnetic defects, such as skyrmions and ...
Karpov P.I., Mukhin S.I.
doaj   +1 more source

The "glass transition'' as a topological defect driven transition in a distribution of crystals and a prediction of a universal viscosity collapse

, 2019
Topological defects are typically quantified relative to ordered backgrounds. The importance of these defects to the understanding of physical phenomena including diverse equilibrium melting transitions from low temperature ordered to higher temperatures
Nogueira, F. S., Nussinov, Z., Weingartner, N. B.   +2 more
core   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

The Topological Structures of the Orders of Hypergraphs

We provide first a categorical exploration of, and then completion of the mapping of the relationships among, three fundamental perspectives on binary relations: as the incidence matrices of hypergraphs, as the formal contexts of concept lattices, and as specifying topological cosheaves of simplicial (Dowker) complexes on simplicial (Dowker) complexes.
Green, Robert E., Joslyn, Cliff A., Myers, Audun, Rawson, Michael G., Robinson, Michael   +4 more
openaire   +2 more sources

Quasi‐Static to Supersonic Energy Absorption of Nanoarchitected Tubulanes and Schwarzites

Advanced Functional Materials, EarlyView.
Nanoarchitected energy‐absorptive Tubulanes exhibit record energy absorption under quasi‐static conditions and exceptional inelastic energy dissipation under 750 m s−1 ballistics impact, with high performance spanning strain rates of 12 orders of magnitude.
Peter Serles, Alianna Maguire, Thomas Butruille, Jet Lem, Shuo Yang, Pedro Guerra Demingos, Sahar Choukir, Michel Haché, Boran Kumral, Katherine Jia, Charles Jia, Yu Zou, Chandra Veer Singh, Carlos M. Portela, Jun Lou, Pulickel M. Ajayan, Tobin Filleter   +16 more
wiley   +1 more source

Topological‐defect‐featured order evolution of liquid crystals

Responsive Materials
Topological defects, which play crucial roles in systems ranging from morphogenesis to energy guidance and information storage, are of fundamental interest across many branches of physics.
Jin‐Bing Wu, Daoxing Luo, Zhenghao Guo, Yan‐Qing Lu, Wei Hu   +4 more
doaj   +1 more source