نتایج جستجو برای: wave emergence

تعداد نتایج: 309259  

Journal: :journal of agricultural science and technology 2010
m. r. najafi shahri s. m. r. behbahani

this paper describes a simple, physically-based conceptual model utilizing watershed drainage characteristics for rainfall-runoff simulation. this conceptual physiographic model is essentially based on the work of najafi (2003), which has led to a model compris-ing the main tributary subwatersheds and a single main channel subwatershed. the ki-nematic wave (kw) theory is used to describe flow o...

Journal: :فیزیک زمین و فضا 0
مهدی قربانی طالقانی دانشجوی کارشناسی ارشد فیزیک دریا، دانشکده منابع طبیعی و علوم دریایی، دانشگاه تربیت مدرس، نور، ایران علی اصغر گلشنی استادیار، گروه فیزیک دریا، مرکز ملی اقیانوس شناسی، تهران، ایران

wave prediction is useful for safety and effective management of vessel navigation or construction of offshore structures. since human activity mainly takes place in nearshore regions, accurate wave prediction is necessary there. however, nearshore waves are not easy to predict compared with ocean waves, because not only the waves but also the wind, which is the energy source of the waves, chan...

A thermal time (TT) model was developed to simulate field emergence of two weed species (flixweed and wild oat) in winter rapeseed. Practical predictive weed emergence models can provide information about timing of weed emergence. Non-linear regression models are usually able to accurately predict field emergence under specific environmental conditions. In the present study, cumulative seedling...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم بهزیستی و توانبخشی 1388

qeeg به مفهوم ساده عبارتست از آنالیز کمی (quantitative) امواج یک نوار مغزی برای پی بردن به مختصات کمی موج های موجود در آن از جمله توزیع کمی امواج در محل های مختلف جمجمه یا قدرت هر کدام از امواج از نظر دامنه. در این مطالعه به منظور درک بهتر اختلال اسکیزوافکتیو ، تعداد 40 بیمار بطور تصادفی و بر اساس معیارهای ورود و خروج از مطالعه انتخاب شدند و نوار مغزی آنها که به شیوه کمی مورد آنالیز قرار گرفت...

Journal: :Frontiers in Applied Mathematics and Statistics 2021

Mathematical models used in epidemiology to describe the diffusion of infectious diseases often fail reproduce recurrent appearance exponential growth number infections (waves). This feature requires a time-modulation some parameters model. Moreover, epidemic data show existence region quasi-linear (strolling period) infected cases extending between waves. We demonstrate that this constitutes e...

2016
Fan Li Jun Ma

Multi-scroll chaotic attractor makes the oscillator become more complex in dynamic behaviors. The collective behaviors of coupled oscillators with multi-scroll attractors are investigated in the regular network in two-dimensional array, which the local kinetics is described by an improved Chua circuit. A feasible scheme of negative feedback with diversity is imposed on the network to stabilize ...

2017
Michael D. Kirchhoff

This paper explores several paths by which the extended cognition (EC) thesis may overcome the couplingconstitution fallacy. In so doing, I address a couple of shortcomings in the contemporary literature. First, on the dimension of first-wave EC, I argue that constitutive arguments based on functional parity suffer from either a threat of cognitive bloat or an impasse with respect to determinin...

2013
Ido Tsurim Alon Silberbush Ofer Ovadia Leon Blaustein Yoel Margalith

We explored how inter- and intra-specific competition among larvae of two temporary-pool mosquito species, Culiseta longiareolata and Ochlerotatus caspius, affect larval developmental strategy and life history traits. Given that their larvae have similar feeding habits, we expected negative reciprocal inter-specific interactions. In a microcosm experiment, we found sex-specific responses of lar...

2016
Parisa Zareapour Jianwei Xu Shu Yang F. Zhao Achint Jain Zhijun Xu T. S. Liu

Recently there has been reinvigorated interest in the superconducting proximity effect, driven by predictions of the emergence of Majorana fermions. To help guide this search, we have developed a phenomenological model for the tunneling spectra in anisotropic superconductor-normal metal proximity devices. We combine successful approaches used in s-wave proximity and standard d-wave tunneling to...

Journal: :international journal of industrial mathematics 2015
a. mahmoud ‎aly‎‎

‎the water wave generation by wave paddle and a freely falling rigid body are examined by using an incompressible smoothed particle hydrodynamics (isph)‎. ‎in the current isph method‎, ‎the pressure was evaluated by solving pressure poisson equation using a semi-implicit algorithm based on the projection scheme and the source term of pressure poisson equation contains both of divergence free ve...

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