a graphene nanosheets (gns) film coated glassy carbon electrode (gce) was fabricated for sensitive determination of tyrosine (tyr). the gns-based sensor was characterized by scanning electron microscope and electrochemical impedance spectroscopy. the voltammetric techniques were employed to study electro-oxidation of tyr. the results revealed that the modified electrode showed an electrocatalyt...

In flexible electronics, a highly electroconductive, flexible, and durable material is important for various applications. This study describes the property changes in graphene nanosheets (GNSs) doped into conductive silver (Ag) paste that used to form grid-style pattern on polyurethane hot melt film (PU HMF) electromagnetic wave shielding. Electrical conductivity, thermal bending tests were pe...

In the Spy game, a spy is placed first at some vertex of a graph G. Then, k > 0 guards are also occupying some vertices of G. At each turn, the spy moves at speed s ≥ 2, i.e., along at most s edges and then, each guard moves at speed 1. The spy and any number of guards may occupy the same vertex. The goal of the guards is to control the spy at distance d ≥ 0, i.e., to ensure that, at every turn...

This study aimed to investigate the pharmacological efficacy of gold nanoparticles (GNs) synthesized using a green route, employing rhizome extract Euphorbia wallichii (REEW) as bioreductant and surface stabilizing agent. The GNs were characterized by series complementary analytical techniques including SEM-EDX, XRD, DLS, IR spectroscopy. reducing ability REEW synthesis confirmed UV–visible abs...

The formation mechanism and wear behavior of a gradient nanostructured (GNS) Inconel 625 alloy were investigated using SEM, TEM ball-on-disc sliding tester. results show that surface mechanical grinding treatment (SMGT) induced an approximately 800 μm-deep microstructure, consisting nano-grained, nano-laminated, nano-twined, severely deformed layers, which resulted in reduced micro-hardness fro...

In this paper we investigate the quantitative stability for Gagliardo-NirenbergSobolev inequalities. The main result is a reduction theorem, which states that, to solve the problem of the stability for the GNS inequalities, one can consider only the class of radial decreasing functions.

The product of two free scalar fields on a manifold is shown to be a well defined operator valued distribution on the GNS Hilbert space of a globally Hadamard product state. Viewed as a new field all n-point distributions exist, giving a new example for a Wightman field on a manifold.

In this review we discuss various aspects of representation theory in deformation quantization starting with a detailed introduction to the concepts of states as positive functionals and the GNS construction. But also Rieffel induction of representations as well as strong Morita equivalence, the Dirac monopole and the strong Picard groupoid are discussed. E-mail: [email protected]...

We show that it is possible to represent various descriptions of Quantum Mechanics in geometrical terms. In particular we start with the space of observables and use the momentum map associated with the unitary group to provide an unified geometrical description for the different pictures of Quantum Mechanics. This construction provides an alternative to the usual GNS construction for pure states.

We completely classify type III factor representations of CuntzKrieger algebras associated with quasi-free states up to unitary equivalence. Furthermore, we realize these representations on concrete Hilbert spaces without using GNS construction. Free groups and their type II1 factor representations are used in these realizations. Mathematics Subject Classification (2000). 46K10, 46L30.