Results 61 to 70 of about 148,749 (259)

A majorization method for localizing graph topological indices

, 2011
This paper presents a unified approach for localizing some relevant graph topological indices via majorization techniques. Through this method, old and new bounds are derived and numerical examples are provided, showing how former results in the ...
Alderson, Alessandra Cornaro, Anna Torriero, Bianchi, Bianchi, Bollobas, Boyd, Brouwer, Du, Grassi, Grone, Gutman, Gutman, Gutman, Harary, Koolen, Koolen, Li, Li, Liu, Liu, Lovász, Marshall, Monica Bianchi, Newman, Nikolić, Randić, Tarazaga, Todeschini, Zhou, Zhou, Zhou, Zhou, Zhou, Zhou   +34 more
core   +1 more source

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

Advanced Functional Materials, EarlyView.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey, Arjen van den Berg, Sandra Ruiz Gomez, Claire Donnelly, Dirk Grundler, Sam Ladak   +5 more
wiley   +1 more source

Topological invariants, surface states, and interaction-driven phase transitions in correlated Kondo insulators with cubic symmetry

, 2014
We construct a lattice model for a cubic Kondo insulator consisting of one spin-degenerate $d$ and $f$ orbital at each lattice site. The odd-parity hybridization between the two orbitals permits us to obtain various trivial and topological insulating ...
Legner, Markus, Rüegg, Andreas, Sigrist, Manfred   +2 more
core   +1 more source

Two‐Dimensional Materials as a Multiproperty Sensing Platform

Advanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana, Shubhrasish Mukherjee, Dmitrii Litvinov, Magdalena Grzeszczyk, Sergey Grebenchuk, Makars Šiškins, Virgil Gavriliuc, Yihang Ouyang, Changyi Chen, Yuxuan Ye, Meng Yiming, Maciej Koperski   +11 more
wiley   +1 more source

On Some Ve-Degree and Harmonic Molecular Topological Properties of Carborundum

ARO-The Scientific Journal of Koya University, 2020
Carborundum, also known as silicon carbide which containing carbon and silicon, is a semiconductor. Molecular topological properties of physical substances are important tools to investigate the underlying topology of these substances.
Murat Cancan, Kerem Yamaç, Ziyattin Taş, Mehmet Şerif Aldemir   +3 more
doaj   +1 more source

Computation of Topological Indices of Double and Strong Double Graphs of Circumcoronene Series of Benzenoid Hm

Journal of Mathematics, 2022
Topological indices are very useful to assume certain physiochemical properties of the chemical compound. A molecular descriptor which changes the molecular structures into certain real numbers is said to be a topological index. In chemical graph theory,
Muhammad Shoaib Sardar, Imran Siddique, Dalal Alrowaili, Muhammad Asad Ali, Shehnaz Akhtar   +4 more
doaj   +1 more source

Dual‐Phased Molybdenum Carbides Confined in MOF‐Derived Carbon Nanoframes Enhance Capacitive Desalination

Advanced Functional Materials, EarlyView.
Dual‐phase MoC/Mo2C/CoNC nanoframes are synthesized via a MOF‐on‐MOF strategy, demonstrating a large salt adsorption capacity, a low energy consumption, and an excellent cycling stability. In situ/ex situ characterizations and DFT calculations reveal that the MoC/Mo2C dual phase transition facilitates Na+ adsorption/desorption, while interface‐induced ...
Feifei Pang, Bohan Liu, Jingyu Wu, Qian Yang, Zhichang Xiao, Ningzhao Shang, Xiaoxian Zhao, Yusuke Yamauchi, Shuaihua Zhang   +8 more
wiley   +1 more source

On $ h $-integral Sombor indices

AIMS Mathematics
In 2021, Ivan Gutman introduced the Sombor index, a new vertex-degree-based topological index with significant geometric meaning. This index has shown remarkable growth in research activity in recent years.
Jorge Batanero, Edil D. Molina, José M. Rodríguez   +2 more
doaj   +1 more source

Some Topological Invariants of Graphs Associated with the Group of Symmetries

Journal of Chemistry, 2020
A topological index is a quantity that is somehow calculated from a graph (molecular structure), which reflects relevant structural features of the underlying molecule.
Chang-Cheng Wei, Muhammad Salman, Usman Ali, Masood Ur Rehman, Muhammad Aqeel Ahmad Khan, Muhammad Hasanain Chaudary, Farooq Ahmad   +6 more
doaj   +1 more source

Topological aspects in a two component Bose condensed system in neutron star

, 2010
By making use of Duan-Ge's decomposition theory of gauge potential and the Duan's topological current theory proposed by Prof. Duan Yi-Shi, we study a two component superfluid Bose condensed system, which is supposed being realized in the interior of ...
Guo, Heng, Ren, Ji-Rong
core   +1 more source