Results 21 to 30 of about 854,924 (287)
Broadband graphene-based metamaterial absorbers
AIP Advances, 2018 In this paper, a new type of broadband tunable metamaterial absorber is proposed. The structure consists of a single-layer ring graphene and a metal ground plane separated by a dielectric spacer.
Chang Liu, Limei Qi, Xu Zhang
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Acta Crystallographica Section E: Crystallographic Communications, 2021 The title molecule, C20H15NO3, adopts a Z-shaped conformation with the carboxyl group nearly coplanar with the dihydroquinoline unit. In the crystal, corrugated layers are formed by C—H...O hydrogen bonds and are stacked by C—H...π(ring) interactions ...
Younos Bouzian +5 more
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A uniqueness theorem for stable homotopy theory [PDF]
, 1999 In this paper we study the global structure of the stable homotopy theory of spectra. We establish criteria for when the homotopy theory associated to a given stable model category agrees with the classical stable homotopy theory of spectra.
Schwede, Stefan, Shipley, Brooke
core +3 more sources
8-(Pyridin-2-yl)quinolin-7-ol as a Platform for Conjugated Proton Cranes: A DFT Structural Design
Micromachines, 2020 Theoretical design of conjugated proton cranes, based on 7-hydroxyquinoline as a tautomeric sub-unit, has been attempted by using ground and excited state density functional theory (DFT) calculations in various environments.
Anton Georgiev, Liudmil Antonov
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Pumping a Ring-Sliding Molecular Motion by a Light-Powered Molecular Motor.
Journal of Organic Chemistry, 2019 Designing artificial molecular machines to execute complex mechanical tasks, like coupling rotation and translation to accomplish transmission of motion, continues to provide important challenges.
Jing‐Jing Yu +11 more
semanticscholar +1 more source
Sensors, 2017 A surface plasmon polariton refractive index sensor based on Fano resonances in metal–insulator–metal (MIM) waveguides coupled with rectangular and ring resonators is proposed and numerically investigated using a finite element method.
Yue Tang +6 more
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AIP Advances, 2022 We explore the stable configurations of atomic species on a hexagonal plane in two-dimensional (2D) binary systems. We investigate configurations for 9 and 16 atomic sites in the unit cell (3 × 3 and 4 × 4 supercells) by using the density-functional ...
Shota Ono
doaj +1 more source
On the identity of the last known stable radical in X-irradiated sucrose [PDF]
, 2017 Identification of radiation-induced radicals in relatively simple molecules is a prerequisite for the understanding of reaction pathways of the radiation chemistry of complex systems.
Callens, Freddy +4 more
core +1 more source
International journal of RF and microwave computer-aided engineering, 2020 This paper presents a compact 5G multiple‐input multiple‐output (MIMO) microstrip antenna with isolation enhancement based on a slotted complementary split‐ring resonator (SCSRR) and the theory of characteristic modes (TCMs).
Ahmed Abdelaziz, E. Hamad
semanticscholar +1 more source
Constraint of a ruthenium-carbon triple bond to a five-membered ring
Science Advances, 2018 The first incorporation of a second-row transition metal carbyne unit into a ring is realized by virtue of aromaticity. The incorporation of a metal-carbon triple bond into a ring system is challenging because of the linear nature of triple bonds.
Qingde Zhuo +9 more
semanticscholar +1 more source