نتایج جستجو برای: Polynomial Models

تعداد نتایج: 996897  

This paper presents a static analysis of laminated composite doubly-curved shells using refined kinematic models with polynomial and non-polynomial functions recently introduced in the literature. To be specific, Maclaurin, trigonometric, exponential and zig-zag functions are employed. The employed refined models are based on the equivalent single layer theories. A simply supported shell is sub...

Journal: :Linear Algebra and its Applications 2010

Journal: :Stochastic Systems 2020

Journal: :International Journal of Theoretical and Applied Finance 2021

In this paper, we explore a class of tractable interest rate models that have the property price zero-coupon bond can be expressed as polynomial state diffusion process. Our results include classification all such time-homogeneous single-factor in spirit Filipović’s maximal degree theorem for exponential models, well an explicit characterization set feasible parameters case when factor process ...

باغستانی, احمد رضا, حاجی زاده, ابراهیم, نور کجوری, هدی, پورحسینقلی, محمد‌امین ,

Background & Objectives: Cox regression model is one of the statistical methods in survival analysis. The use of smoothing techniques in Cox model makes the more accurate estimates for the parameters. Fractional polynomial is one of these techniques in Cox model. The aim of this study was to assess the effects of prognostic factors on survival of patients with gastric cancer using the fractiona...

Journal: :علوم گیاهان زراعی ایران 0
عباس هاشمی دانشجوی کارشناسی ارشد علوم و تکنولوژی بذر، پردیس کشاورزی و منابع طبیعی دانشگاه تهران رضا توکل افشاری استاد گروه زراعت و اصلاح نباتات، دانشکده کشاورزی دانشگاه فردوسی مشهد لیلا تبریزی استادیار گروه علوم باغبانی و فضای سبز، پردیس کشاورزی و منابع طبیعی دانشگاه تهران

this study was conducted to investigate the effects of different temperatures on seed germination of plantago ovata and also to evaluate cardinal temperatures. various constant temperatures (5, 10, 15, 20, 25, 30 and 35ºc) were conducted in a completely randomized design with four replications. the germinated seeds were counted every day and the rate of germination percentage, cumulative germin...

Journal: :Electronic Proceedings in Theoretical Computer Science 2018

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