Results 111 to 120 of about 6,979,871 (382)

Network topology of the desert rose [PDF]

Frontiers in Physics, 2015
Desert roses are gypsum crystals that consist of intersecting disks. We determine their geometrical structure using computer assisted tomography. By mapping the geometrical structure onto a graph, the topology of the desert rose is analyzed and compared to a model based on diffusion limited aggregation. By comparing the topology, we find that the model
Sigmund Mongstad Hope, Sigmund Mongstad Hope, Sumanta eKundu, Chandreyee eRoy, Subhrangshu Sekhar Manna, Alex eHansen   +5 more
openaire   +4 more sources

Single Pair of Weyl Points Evolve From Spin Group‐Protected Nodal Line in Half‐Metallic Ferromagnet V3S4

Advanced Functional Materials, EarlyView.
A spin group (SG)‐based mechanism is proposed to realize a single pair of Weyl points. PT‐symmetric nodal lines (NLs) persist under T‐breaking, protected by the combination of SG and P symmetry. When considering spin‐orbit coupling, the SG‐protected NL will split into Weyl points, which will also induce anomalous transport phenomena arising from ...
Shifeng Qian, Yao Zhang, Xiaowei Sheng, Xiuxian Yang, Gang Zhang, Junfeng Gao, Xiaotian Wang   +6 more
wiley   +1 more source

Data-Model Hybrid Driven Topology Identification Framework for Distribution Networks

CSEE Journal of Power and Energy Systems
Extensive penetration of distribution energy resources (DERs) brings increasing uncertainties to distribution networks. Accurate topology identification is a critical basis to guarantee robust distribution network operation. Many algorithms that estimate
Dongliang Xu, Zaijun Wu, Junjun Xu, Qinran Hu   +3 more
doaj   +1 more source

RWRNET: A Gene Regulatory Network Inference Algorithm Using Random Walk With Restart

Frontiers in Genetics, 2020
Inferring gene regulatory networks from expression data is essential in identifying complex regulatory relationships among genes and revealing the mechanism of certain diseases.
Wei Liu, Wei Liu, Xingen Sun, Li Peng, Lili Zhou, Hui Lin, Yi Jiang   +6 more
doaj   +1 more source

Strongly Uncontrollable Network Topologies [PDF]

IEEE Transactions on Control of Network Systems, 2020
In this paper, we present a class of network topologies under which the Laplacian consensus dynamics exhibits undesirable controllability properties under a broadcast control signal. Specifically, the networks we characterize are uncontrollable for any subset of the nodes chosen as control inputs and that emit a common control signal.
openaire   +3 more sources

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

Wireless network topology optimization algorithm based on discrete variables

Systems and Soft Computing
In response to the missing discrete variables in current wireless network topology optimization, an improved particle swarm optimization algorithm based on fusion of discrete variables is proposed to obtain network discrete variables.
Qingpeng Ran
doaj   +1 more source

Ionic Metal Poly(heptazine Imides) and Single‐Atoms Interplay: Engineered Stability and Performance for Photocatalysis, Photoelectrocatalysis and Organic Synthesis

Advanced Functional Materials, EarlyView.
Poly(heptazine) imides (PHIs), a crystalline carbon nitride subclass, intercalate metals to deliver high stability, tunable electronics, and efficient charge separation. These features enable solar‐driven applications such as hydrogen evolution, CO₂ reduction, and organic synthesis.
Gabriel A. A. Diab, Izadora F. Reis, Chong Wang, Diandra Barreto, Oleksandr Savateev, Ivo F. Teixeira, Pablo Jiménez‐Calvo   +6 more
wiley   +1 more source

Link-based formalism for time evolution of adaptive networks

, 2013
Network topology and nodal dynamics are two fundamental stones of adaptive networks. Detailed and accurate knowledge of these two ingredients is crucial for understanding the evolution and mechanism of adaptive networks.
Chen, Guanrong, Xiao, Gaoxi, Zhou, Jie
core   +1 more source

Experimental and Theoretical Confirmation of Covalent Bonding in α‐Pu

Advanced Functional Materials, EarlyView.
From a combination of Reverse Monte Carlo dynamic rigid body fitting to the pair distribution functional and novel density functional approaches, the existence of covalent bonding is confirmed in α‐plutonium alongside other bonding types (i.e. mixed bonding schemes).
Alexander R. Muñoz, Matthew S. Cook, David C. Arellano, AM Milinda Abeykoon, Jeremy N. Mitchell, Sarah C. Hernandez, Eric D. Bauer, Christopher A. Mizzi, Boris Maiorov, Neil Harrison, W. Adam Phelan   +10 more
wiley   +1 more source