Results 21 to 30 of about 167,724,956 (286)

Space–time slices and surfaces of revolution [PDF]

Journal of Mathematical Physics, 2004
Under certain conditions, a (1+1)-dimensional slice ĝ of a spherically symmetric black hole space–time can be equivariantly embedded in (2+1)-dimensional Minkowski space. The embedding depends on a real parameter that corresponds physically to the surface gravity κ of the black hole horizon.
Giblin, John T. jun., Hwang, Andrew D.
openaire   +3 more sources

A predictive surface profile model for turning based on spectral analysis [PDF]

, 2013
This article presents a predictive approach of surface topography based on the FFT analysis of surface profiles. From a set of experimental machining tests, the parameters investigated are: feed per revolution, insert nose radius, depth of cut and ...
COSTES, Jean-Philippe
core   +1 more source

Influence of the geometrical researches of surfaces of revolution and translation surfaces on design of unique structures

Structural Mechanics of Engineering Constructions and Buildings, 2019
Aims of research. The use, design and analysis of architectural and building structures in the form of smooth and composite surfaces have become relevant and in demand lately, which determined the purpose of this article - to analyze the use of ...
Gérard Léopold Gbaguidi Aisse
doaj   +1 more source

Bianchi transformation of the Minding coil

Дифференциальная геометрия многообразий фигур
The work is devoted to the study of the Bianchi transform for surfac­es of constant negative Gaussian curvature. The surfaces of rotation of constant negative Gaussian curvature are the Mining top, the Minding coil, the pseudosphere (Beltrami surface ...
M. A. Cheshkova
doaj   +1 more source

Stability and instability of solutions of semilinear problems with Dirichlet boundary condition on surfaces of revolution

Electronic Journal of Qualitative Theory of Differential Equations, 2016
We consider the equation $\Delta u+f(u)=0$ on a surface of revolution with Dirichlet boundary conditions. We obtain conditions on $f$, the geometry of the surface and the maximum value of a positive solution in order to ensure its stability or ...
Maicon Sônego
doaj   +1 more source

A note on existence of patterns on surfaces of revolution with nonlinear flux on the boundary

Electronic Journal of Qualitative Theory of Differential Equations, 2019
In this note we address the question of existence of non-constant stable stationary solution to the heat equation on surfaces of revolution subject to nonlinear boundary flux involving a positive parameter.
Maicon Sônego
doaj   +1 more source

A New Approach to Timelike Hypersurfaces of Constant Ratio in IE14

Journal of Mathematics, 2023
In this study, we consider timelike revolution hypersurfaces of constant ratio in Minkowski space-time. At first, we exhibit the representations of revolution hypersurfaces given by three different forms.
Sezgin Büyükkütük
doaj   +1 more source

Investigating transcription factor dynamics in health and disease using FRAP

FEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj, Carolina Vazquez Garzon, Jose Joaquin Velasco, Janine N. Post   +3 more
wiley   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

FEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui, Agnes Banreti, Armelle L. Ernst, Guillaume Leseigneur, Uwe J. Meierhenrich   +4 more
wiley   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

FEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise, Tiziano Mazza, Raffaella Scanga, Lara Console, Michele Galluccio, Cesare Indiveri   +5 more
wiley   +1 more source