Results 21 to 30 of about 1,020,464 (204)

On the stability of static ghost cosmologies [PDF]

open access: yes, 2009
We consider the classical linear stability of a static universe filled with a non-interacting mixture of isotropic radiation and a ghost scalar field.
Barrow, John D, Tsagas, Christos G
core   +1 more source

Strength characteristics of load-bearing reinforced concrete structures of the Ostankino television tower [PDF]

open access: yesE3S Web of Conferences, 2023
The article describes the design features of the Ostankino TV tower in Moscow. The main results of the earlier works of the load-bearing reinforced concrete structures of the TV tower column and foundations are presented in the article.
Mamin Aleksandr N.   +4 more
doaj   +1 more source

Assessment of yield stability in sugarcane genotypes using non-parametric methods

open access: yesAgronomía Colombiana, 2015
The evaluation of performance stability and high yields is essential for yield trials in different environments. This study was carried out to identifysugarcane genotypesthat have both a high mean cane yield, mesured in tons of cane per hectare (TCH ...
Ramón Rea   +6 more
doaj   +1 more source

On the Stability of the Einstein Static Universe [PDF]

open access: yes, 2003
We show using covariant techniques that the Einstein static universe containing a perfect fluid is always neutrally stable against small inhomogeneous vector and tensor perturbations and neutrally stable against adiabatic scalar density inhomogeneities ...
Barrow J D   +18 more
core   +2 more sources

Existence and static stability of a capillary free surface appearing in a dewetted Bridgman process. Part II. [PDF]

open access: yesINCAS Bulletin, 2019
This paper presents six theoretical results concerning the existence and static stability of a capillary free surface appearing in a dewetted Bridgman crystal growth technique. The results are obtained in an axis-symmetric 2D model for semiconductors for
Agneta M. BALINT, Stefan BALINT
doaj   +1 more source

Aerodynamic instability of flare-type membrane inflatable vehicle in suborbital reentry demonstration

open access: yesJournal of Fluid Science and Technology, 2018
An inflatable membrane reentry vehicle has been developed as one of the innovative reentry technologies. A suborbital reentry demonstration using a sounding rocket was carried out in 2012. Contrary to the result of a preliminary study, the vehicle always
Tatsushi OHASHI   +3 more
doaj   +1 more source

How the viscous subrange determines inertial range properties in turbulence shell models [PDF]

open access: yes, 1995
We calculate static solutions of the 'GOY' shell model of turbulence and do a linear stability analysis. The asymptotic limit of large Reynolds numbers is analyzed.
Amick   +33 more
core   +4 more sources

Effect of long-term tending on qualitative and quantitative production in mixed stands of spruce, fir and beech on Motyky research plot

open access: yesJournal of Forest Science, 2003
The paper is a contribution to research on thinnings in mixed (spruce-fir-beech) stands situated in the fifth forest altitudinal zone in the central part of Slovakia.
I. Štefančík, L. Štefančík
doaj   +1 more source

Sensitivity of the Intensity and Structure of Tropical Cyclones to Tropospheric Stability Conditions

open access: yesAtmosphere, 2020
The intensity of tropical cyclones (TCs) is controlled by their environmental conditions. In addition to the sea surface temperature, tropospheric temperature lapse rate and tropopause height are highly variable.
Tetsuya Takemi, Shota Yamasaki
doaj   +1 more source

Field theory of bi- and tetracritical points: Relaxational dynamics [PDF]

open access: yes, 2008
We calculate the relaxational dynamical critical behavior of systems of $O(n_\|)\oplus O(n_\perp)$ symmetry by renormalization group method within the minimal subtraction scheme in two loop order.
G. Moser   +6 more
core   +1 more source

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