نتایج جستجو برای: ct kernel

تعداد نتایج: 184643  

Journal: :علوم باغبانی ایران 0
موسی رسولی دانشجوی دکتری دانشگاه تهران محمدرضا فتاحی مقدم دانشیار، پردیس کشاورزی و منابع طبیعی کرج، دانشکده علوم زراعی و دامی، گروه علوم باغبانی و فضای سبز، تخصص: اصلاح و بیوتکنولوژی درختان میوه/ فندق/ آلو/ زردآلو ذبیح اله زمانی دانشیار، پردیس کشاورزی و منابع طبیعی کرج، دانشکده علوم زراعی و دامی، گروه علوم باغبانی و فضای سبز، تخصص: بیوتکنولوژی و میوه¬کاری/ انار/ مرکبات/ گیلاس/ آلبالو/ خرمالو علی ایمانی دانشیار موسسه اصلاح بذر علی عبادی پردیس کشاورزی و منابع طبیعی/دانشکده علوم باغبانی و گیاهپزشکی

for a comparison and grouping of 72 almond cultivars and genotypes, 30 traits including; 12 phenological and vegetative characters plus 18 traits related to nut and kernel were assessed, according to almond universal descriptor. the results revealed that some such traits as growth habit, flower color, nut weight, shell hardness and kernel taste carried high coefficients of variation. simple cor...

A. Ganjeali, S. Jomhoori, V. Fakoor,

In some long term studies, a series of dependent and possibly truncated lifetime data may be observed. Suppose that the lifetimes have a common continuous distribution function F. A popular stochastic measure of the distance between the density function f of the lifetimes and its kernel estimate fn is the integrated square error (ISE). In this paper, we derive a central limit theorem for t...

امام, یحیی , ربانی, جواد,

Drought stress is the most important limiting factor in crop plants including maize (Zea mays L.), which is the third important world crop after wheat and rice. Water deficiency at different growth stages affects maize yield differently. To examine the response of four maize hybrids to drought stress at different growth stages, a field experiment was carried out as a split plot based on complet...

Journal: :international journal of mathematical modelling and computations 0
azizallah alvandi dasddadaaas mahmoud paripour department of mathematics, hamedan university of technology, hamedan, 65156-579, iran

in this letter, the numerical scheme of nonlinear volterra-fredholm integro-differential equations is proposed in a reproducing kernel hilbert space (rkhs). the method is constructed based on the reproducing kernel properties in which the initial condition of the problem is satis ed. the nonlinear terms are replaced by its taylor series. in this technique, the nonlinear volterra-fredholm integr...

Journal: :تولید گیاهان زراعی 0

understanding the variation of kernel number per unit area (kno) is an important factor in respect yield and in identifying opportunities to increase potential yield. some crop models are for dependence on kernel number prediction to yield simulation. in order to quantify the relationship between kernel number per unit area and influencing parameters (environment and non-environment-based facto...

Journal: :Technologies (Basel) 2023

Lung disease is a respiratory that poses high risk to people worldwide and includes pneumonia COVID-19. As such, quick precise identification of lung vital in medical treatment. Early detection diagnosis can significantly reduce the life-threatening nature diseases improve quality life human beings. Chest X-ray computed tomography (CT) scan images are currently best techniques detect diagnose i...

Performance of the linear models, widely used within the framework of adaptive line enhancement (ALE), deteriorates dramatically in the presence of non-Gaussian noises. On the other hand, adaptive implementation of nonlinear models, e.g. the Volterra filters, suffers from the severe problems of large number of parameters and slow convergence. Nonetheless, kernel methods are emerging solutions t...

E. Babolian R. Ketabchi‎ R. Mokhtari

This paper is concerned with a technique for solving Volterra integral equations in the reproducing kernel Hilbert space. In contrast with the conventional reproducing kernel method, the Gram-Schmidt process is omitted here and satisfactory results are obtained.The analytical solution is represented in the form of series.An iterative method is given to obtain the approximate solution.The conver...

This paper is concerned with a technique for solving Volterra integro-dierential equationsin the reproducing kernel Hilbert space. In contrast with the conventional reproducing kernelmethod, the Gram-Schmidt process is omitted here and satisfactory results are obtained.The analytical solution is represented in the form of series. An iterative method is given toobtain the...

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