Results 201 to 210 of about 2,669,595 (286)

Tribenzotriquinacene Fused Dimers (“Fusodimers”)—Synthesis and Host–Guest Properties

open access: yesChemistry – A European Journal, EarlyView.
Two tribenzotriquinacene units merged with each other in either syn‐ or anti‐orientation of the bowls have become accessible in a short synthesis. In contrast to the anti‐isomer, the syn‐isomer forms 1:1 host–guest complexes with both C60 and C70 in solution and in the solid state, as shown by 1H NMR spectroscopy and x‐ray diffraction.
Chun‐Fai Ng   +5 more
wiley   +1 more source

Three-Dimensional Changes in Natural Head Position After Bimaxillary Orthognathic Surgery: A Laser-Based Facial Scan Superimposition Study in Skeletal Class II and Class III Patients. [PDF]

open access: yesJ Clin Med
Abbate V   +11 more
europepmc   +1 more source

Comparative Study of Gas and Liquid Flow in Packed Beds Using Phase‐Contrast MRI

open access: yesChemie Ingenieur Technik, EarlyView.
This work presents applications of phase‐contrast magnetic resonance imaging (MRI) to investigate fluid flow fields and temperature in packed beds. Comparison of ethane (C2H6) gas flow with that of water flow is done at similar flow conditions. The temperature of water is also measured using MRI.
Maitreyi Sangal   +4 more
wiley   +1 more source

Builder-Blocker Mutual-Visibility Game. [PDF]

open access: yesBull Malays Math Sci Soc
Chenoweth VI   +4 more
europepmc   +1 more source

Asymptotic properties of cross‐classified sampling designs

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract We investigate the family of cross‐classified sampling designs across an arbitrary number of dimensions. We introduce a variance decomposition that enables the derivation of general asymptotic properties for these designs and the development of straightforward and asymptotically unbiased variance estimators.
Jean Rubin, Guillaume Chauvet
wiley   +1 more source

A Geometric Characterization of Steady Laminar Flow

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
ABSTRACT We study the steady states of the Euler equations on the periodic channel or annulus. We show that if these flows are laminar (layered by closed non‐contractible streamlines which foliate the domain), then they must be either parallel or circular flows.
Theodore D. Drivas, Marc Nualart
wiley   +1 more source

Stakeholder Divergence in Sustainability Materiality Assessments: Evidence From a European Corporate Group Under the Corporate Sustainability Reporting Directive

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This study examines differences in stakeholders' perceptions of ESG issues in a European corporate group and their implications for double materiality assessment under the Corporate Sustainability Reporting Directive. Drawing on stakeholder theory, it analyses survey responses from 15 stakeholder groups and compares perceived ESG importance ...
Agnieszka Szulc‐Obłoza   +4 more
wiley   +1 more source

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