Results 71 to 80 of about 21,658 (186)

A proof of Atiyah's conjecture on configurations, of four points in Euclidean three-space

open access: yes, 2001
From any configuration of finitely many points in Euclidean three-space, Atiyah constructed a determinant and conjectured that it was always non-zero. Atiyah and Sutcliffe (hep-th/0105179) amass a great deal of evidence it its favour.
Atiyah, Michael Eastwood, Paul Norbury
core   +1 more source

Silicon‐Integrated Next‐Generation Plasmonic Devices for Energy‐Efficient Semiconductor Applications

open access: yesAdvanced Materials Technologies, Volume 10, Issue 20, October 20, 2025.
Silicon (Si)‐integrated plasmonics offer a pathway to next‐generation, energy‐efficient semiconductor applications. This review highlights advances using complementary metal–oxide–semiconductor (CMOS)‐compatible materials like transparent conductive oxides and novel architectures, particularly coupled hybrid plasmonic waveguides (CHPWs).
Nasir Alfaraj, Amr S. Helmy
wiley   +1 more source

[1-(Carboxymethyl)cyclohexyl]methanaminium dihydrogen phosphate

open access: yesActa Crystallographica Section E, 2010
In the title salt, C9H18NO2+·H2PO4−, the cyclohexane ring is puckered, the total puckering amplitude QT being 0.555 (4) Å, and an intramolecular N—H...O hydrogen bond generates an S(7) ring.
Syed Naeem Razzaq   +3 more
doaj   +1 more source

Generalized Bicomplex Numbers and Lie Groups

open access: yes, 2013
In this paper, we denone the generalized bicomplex numbers and give some algebraic properties of them. Also, we show that some hyperquadrics in R4 and R42 are Lie groups by using generalized bicomplex number product and obtain Lie algebras of these Lie ...
Aksoyak, Ferdağ Kahraman   +1 more
core  

Analysis of Statistical QoS in Half Duplex and Full Duplex Dense Heterogeneous Cellular Networks [PDF]

open access: yes, 2017
Statistical QoS provisioning as an important performance metric in analyzing next generation mobile cellular network, aka 5G, is investigated. In this context, by quantifying the performance in terms of the effective capacity, we introduce a lower bound ...
Lahouti, Farshad   +3 more
core   +1 more source

Determination of $f_0-\sigma$ mixing angle through $B_s^0 \to J/\Psi~f_0(980)(\sigma)$ decays

open access: yes, 2012
We study $B_s^0 \to J/\psi f_0(980)$ decays, the quark content of $f_0(980)$ and the mixing angle of $f_0(980)$ and $\sigma(600)$. We calculate not only the factorizable contribution in QCD facorization scheme but also the nonfactorizable hard spectator ...
Du, Dong-Sheng   +2 more
core   +1 more source

Electronic Effects of Al Doping on the Mechanism of Methanol Formation on an Al Doped Cu/ZnO Interface Model

open access: yesChemCatChem, Volume 17, Issue 19, October 8, 2025.
Computational techniques are used to understand the electronic doping character of Al added to the Cu/ZnO catalyst system during interfacial methanol formation. Notably, some formate species behave as intermediates, others as spectators while the methoxy intermediate is a mechanistic dead end.
David A. Jurado A.   +3 more
wiley   +1 more source

Crystal structure of (2-chloroethyl)[2-(methylsulfanyl)benzyl]ammonium chloride

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
In the title molecular salt, C10H15ClNS+·Cl−, the cation is [R′R"NH2]+, where R′ is 2-MeS-C6H4CH2– and R" is –CH2CH2Cl, and the anion is Cl−. In the cation, the N atom is protonated with sp3-hybridization and with a tetrahedral geometry.
P. Raghavendra Kumar   +2 more
doaj   +1 more source

3-tert-Butyl-4-(4-chlorophenyl)-1-phenyl-1H-pyrazolo[3,4-e][1,4]thiazepin-7(4H,6H,8H)-one

open access: yesIUCrData, 2016
In the title molecule, C22H22ClN3OS, the fused 1,4-thiazepinone ring adopts a near twist-boat conformation and the chlorobenzene ring is inclined to the phenyl ring by 88.38 (12)°.
Rodolfo Moreno-Fuquen   +4 more
doaj   +1 more source

Coupling Modelling and Fault Propagation Simulation Method for Power Grid‐Centric Urban Lifeline Systems Under Extreme Disasters

open access: yesEnergy Internet, Volume 2, Issue 3, Page 255-273, October 2025.
ABSTRACT The interconnection of urban critical infrastructure poses new challenges to the secure operation of power grid‐centric urban lifeline systems. The interdependencies among infrastructure systems increase the risk of cascading fault propagation, thereby threatening urban public safety.
Chengeng Zhang   +3 more
wiley   +1 more source

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