نتایج جستجو برای: ثتا θ

تعداد نتایج: 14017  

2003
J. J. Dudek F. E. Close

If the exotic baryon Θ(1540) is udud¯ s with J P = 1 2 + , we predict that there is a Θ * (1540− 1680) with J P = 3 2 +. The width Γ(Θ * → KN) is at least a factor of three larger than Γ(Θ). The possibilities of Θ * → KN π or Θγ via M 1 and E2 multipoles are discussed. A major plank in establishing the constituent quark model was the absence of baryons with strangeness +1. The announcement of s...

Journal: :Papers in Historical Phonology 2016

محمدرضا نیشابوری, , حسین رضائی, , علیرضا سپاسخواه, ,

Hydraulic coefficients of a porous media such as hydraulic conductivity K(θ) and diffusivity D(θ) have a controlling role in the evaluation of groundwater flow and pollutant transport behavior. Therefore, successful porous media flow evaluation depends on the accurate determination of its hydraulic coefficients. But it is hard and time consuming to measure. Values for these coefficients accurat...

Journal: :journal of advances in computer engineering and technology 2015
masoud geravanchizadeh sina ghalami osgouei

in this paper, we propose a novel algorithm to enhance the noisy speech in the framework of dual-channel speech enhancement. the new method is a hybrid optimization algorithm, which employs the  combination of  the  conventional θ-pso and the shuffled sub-swarms particle optimization (sspso) technique. it is known that the θ-pso algorithm has better optimization performance than standard pso al...

Journal: :Mathematics 2022

We consider real trigonometric polynomial Bernoulli equations of the form A(θ)y′=B1(θ)+Bn(θ)yn where n≥2, with A,B1,Bn being polynomials degree at most μ≥1 in variables θ and Bn(θ)≢0. also A(θ)yn−1y′=B0(θ)+Bn(θ)yn A,B0,Bn variable For first equation, we show that when n≥4, it has 3 solutions n is even 5 odd. second n≥3, odd even. provide two types mentioned above maximum number achieved. The pr...

Journal: :Journal of the Australian Mathematical Society. Series A. Pure Mathematics and Statistics 1992

Journal: :Indagationes Mathematicae 2023

Let Θ(G) denote the Shannon capacity of a graph G. We give an elementary proof equivalence, for any graphs G and H, inequalities Θ(G⊔H)>Θ(G)+Θ(H) Θ(G⊠H)>Θ(G)Θ(H). This was shown independently by Wigderson Zuiddam (2022) using Kadison–Dubois duality Axiom choice.

Journal: :Journal of Nonlinear Sciences and Applications 2017

ژورنال: :تولید محصولات زراعی و باغی 0
حسین رضائی h. rezaie محمدرضا نیشابوری m.r. neishabouri علیرضا سپاسخواه a. r. sepaskhah

در برآورد مقدار و شدت جریان آب های زیر زمینی و انتقال مواد آلاینده در محیط های متخلخل، ضرایب هیدرولیکی (هدایت هیدرولیکی،(k(θ و پخشیدگی هیدرولیکی،(d(θ) نقش اصلی را ایفا می کنند. دقت این بررسی در محیط متخلخل منوط به تعیین دقیق مقادیر این ضرایب می باشد. اندازه گیری این ضرایب در شرایطی که خاک اشباع نباشد مشکل بوده و هزینه و وقت زیادی نیاز دارد. هم چنین به طور عمده اندازه گیری در نزدیکی رطوبت اشباع ...

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