نتایج جستجو برای: relative stability

تعداد نتایج: 676162  

Alireza Zebarjadi Danial Kahrizi, Zeinab Chaghakaboodi

The present study was carried out to estimate genetic variability parameters for some traits such as pods per plant, cell membrane stability, one thousand kernel weight, flowering period, grain filling period, chlorophyll content, relative water content, leaf excised water content, seed per pod and pod length, in 16 winter rapeseed genotypes. Statistical analysis showed significant differences ...

Journal: :به زراعی کشاورزی 0
معصومه قهرمانی کارشناس ارشد، گروه زراعت و اصلاح نباتات، دانشکدة کشاورزی، دانشگاه محقق اردبیلی، اردبیل - ایران علی عبادی دانشیار، گروه زراعت و اصلاح نباتات، دانشکدة کشاورزی، دانشگاه محقق اردبیلی، اردبیل - ایران. قاسم پرمون دانشجوی دکتری، گروه زراعت و اصلاح نباتات، دانشکدة کشاورزی، دانشگاه محقق اردبیلی، اردبیل - ایران سودابه جهانبخش دانشیار، گروه زراعت و اصلاح نباتات، دانشکدة کشاورزی، دانشگاه محقق اردبیلی، اردبیل - ایران.

this study was carried out to evaluate the changes in some important cell parameters under water limitation in sorghum genotypes. a factorial experiment was conducted based on randomized completely design in greenhouse, in university of mohaghegh ardabili in 2014. treatments were water stress at levels of 85, 65, 45 and 25 percent field capacity in and three genotypes of forage sorghum (kfs2, k...

Journal: :پژوهش های حبوبات ایران 0
مراد شعبان سیروس منصوری فر مختار قبادی سید حسین صباغ پور

drought stress is the most important factor that reduces yield in crops including chickpea and causes some changes in seed composition. this study was performed in order to evaluate the effects of drought stress and starter nitrogen fertilizer on four cultivars of chickpea. experiment was performed in a split-factorial using randomized complete block design with three replications. drought stre...

ژورنال: مجله دندانپزشکی 2011
زندی, ابوطالب, عاطفی, احسان, ملاک زاده, محمدرضا,

Background and Aims: Relative displacement of the implant with respect to bone and quality of bone-implant contact play critical roles in the dental implant stability. The goal of this study was to investigate the dental implant stability using non-linear finite elements method. Therefore, bone-implant relative displacement due to applied force to the implant was calculated, and then an appropr...

2011
Lochan Jolly

The paper presents the relative stability behavior of the GaAs MESFET under varied illumination and frequency. The model of the device is developed in MATLAB and explains the shifts in the pole positions of transfer function with illumination and frequency for the first time. The variations of minority carrier life time and signal to noise ratio various optical illuminations under different fre...

1997
James Montaldi

We consider relative equilibria in symmetric Hamiltonian systems, and their persistence or bifurcation as the momentum is varied. In particular, we extend a classical result about persistence of relative equilibria from values of the momentum map that are regular for the coadjoint action, to arbitrary values, provided that either (i) the relative equilibrium is at a local extremum of the reduce...

Journal: :Molecules 2015
Motoo Tori

The relative stabilities of several cis- and trans-hydrindanones were compared using both isomerization experiments and MM2 calculations. The generally believed rule that cis-hydrindanones are more stable than trans-isomers is applicable, but is not always true. This review introduces examples, mainly from studies in our laboratory, to explain these facts.

2016
RUADHAÍ DERVAN

We study the existence of extremal Kähler metrics on Kähler manifolds. After introducing a notion of relative K-stability for Kähler manifolds, we prove that Kähler manifolds admitting extremal Kähler metrics are relatively K-stable. Along the way, we prove a general Lp lower bound on the Calabi functional involving test configurations and their associated numerical invariants, answering a ques...

2008
George W Patrick Mark Roberts Claudia Wulff

In the presence of noncompact symmetry, the stability of relative equilibria under momentum-preserving perturbations does not generally imply robust stability under momentum-changing perturbations. For axisymmetric relative equilibria of Hamiltonian systems with Euclidean symmetry, we investigate different mechanisms of stability: stability by energy–momentum confinement, KAM, and Nekhoroshev s...

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