Results 21 to 30 of about 1,206,144 (282)

A Model in Which the Separation Principle Holds for a Given Effective Projective Sigma-Class

open access: yesAxioms, 2022
In this paper, we prove the following: If n≥3, there is a generic extension of L—the constructible universe—in which it is true that the Separation principle holds for both effective (lightface) classes Σn1 and Πn1 of sets of integers.
Vladimir Kanovei, Vassily Lyubetsky
doaj   +1 more source

Studies for using frameless plastic in the forcing of some ornamental crops

open access: yesInternational Journal of Horticultural Science, 2000
On the basis of a six-year experiment a method was elaborated for forcing and off-seasons growing of tulips, narcissus and gladioli under frameless plastic cover.
P. Lévai, Zs. Farkas
doaj   +1 more source

Forcing companions of Jonsson AP-theories

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2022
This article is devoted to the study of the forcing companions of the Jonsson AP-theories in the enriched signature. It is proved that the forcing companion of the theory does not change when expanding the theories under consideration, which have some ...
A.R. Yeshkeyev   +2 more
doaj   +1 more source

On the Significance of Parameters in the Choice and Collection Schemata in the 2nd Order Peano Arithmetic

open access: yesMathematics, 2023
We make use of generalized iterations of the Sacks forcing to define cardinal-preserving generic extensions of the constructible universe L in which the axioms of ZF hold and in addition either (1) the parameter-free countable axiom of choice ACω* fails,
Vladimir Kanovei, Vassily Lyubetsky
doaj   +1 more source

Rotating quantum turbulence in superfluid 4He in the T=0 limit [PDF]

open access: yes, 2012
Observations of quantum turbulence in pure superfluid 4He in a rotating container are reported. New techniques of large-scale forcing (rotational oscillations of the cubic container) and detecting (monitoring ion transport along the axis of rotation ...
Golov, A. I., Walmsley, P. M.
core   +2 more sources

On the Countering of Free Vibrations by Forcing: Part II—Damped Oscillations and Decaying Forcing

open access: yesApplied Mechanics, 2023
The present two-part paper concerns the active vibration suppression for the simplest damped continuous system, namely the transverse oscillations of an elastic string, with constant tension and mass density per unit length and friction force ...
Luiz M. B. C. Campos, Manuel J. S. Silva
doaj   +1 more source

Response of Marine‐Terminating Glaciers to Forcing: Time Scales, Sensitivities, Instabilities, and Stochastic Dynamics [PDF]

open access: yes, 2018
Recent observations indicate that many marine‐terminating glaciers in Greenland and Antarctica are currently retreating and thinning, potentially due to long‐term trends in climate forcing.
Haseloff, Marianne   +2 more
core   +2 more sources

The Interactive Effects of Chilling, Photoperiod, and Forcing Temperature on Flowering Phenology of Temperate Woody Plants

open access: yesFrontiers in Plant Science, 2020
The effects of winter chilling, spring forcing temperature, and photoperiod on spring phenology are well known for many European and North American species, but the environmental cues that regulate the spring phenology of East Asian species have not yet ...
Huanjiong Wang   +3 more
doaj   +1 more source

Multi-scale theory of rotating turbulence [PDF]

open access: yes, 2007
We consider turbulence induced by an arbitrary forcing and derive turbulence amplitude and turbulent transport coefficients, first by using a quasi-linear theory and then by using a multi-scale renormalisation analysis.
Balbus   +25 more
core   +5 more sources

Neubojito oružje i njegove karakteristike / Non-lethal weapons and their characteristics / Нелетальное оружие и его характеристики

open access: yesVojnotehnički Glasnik, 2015
Неубојито оружје или, како се још назива, мање смртоносно и несмртоносно оружје пандан је конвенционалном наоружању и није намењено уништавању, односно убијању живе силе. Циљ је да се број жртава смањи на што мању могућу меру.
Dragan Z. Damjanović
doaj   +1 more source

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