نتایج جستجو برای: density distribution
تعداد نتایج: 974041 فیلتر نتایج به سال:
In the present study, temporal behavior of entanglement between photonic binomial distributions and a two-level atom in a leaky cavity, in equilibrium with the environment at a temperature T, is studied. In this regard, the master equation is solved in the secular approximation for the density matrix, when the initial photonic distribution is binomial, while the atomic states obey the Boltzmann...
this study was intended to analyze the listening tapescripts of the elementary and pre-intermediate levels of total english textbooks from the pragmatic dimension of language functions and speech acts in order to see whether the listening tasks are pragmatically informative or not. for this purpose, 8 conversations from the two books were selected randomly, and then, the two pragmatic models of...
چکیده در این پایان نامه ضمن معرفی توزیع وایبل، برآوردگر درستنمایی ماکزیمم و بیز پارامتر مقیاس توزیع وایبل با داده های سانسور شده را با استفاده از توزیع پیشین جفری و توزیع پیشین جفری تعمیم یافته تحت توابع میانگین مربع خطا و میانگین درصد خطا محاسبه و با یکدیگر مقایسه شده اند. در پایان ضمن مقایسه کارایی برآوردگرها نتیجه می شود که پارامتر برآورد شده توزیع وایبل بدست آمده از روش بیز با توزیع پیشین ...
abstract chickpea is weak in competition of weeds that damages to it at between 40 t0 60 percent. kermanshah province is one of the most important region for chickpea fields in iran. for these reosons, weed management is necessary in this crop. in order to evaluate of herbicides and stubble control on broad leave weeds control in chickpea. experiment was conducted in agricultural research stat...
In a faunestic study, to determine the frequency and distribution of soft ticks (Argasidae) in suberbs of Hamden city, 16 Villages were selected randomly from 12 rural districts. For village 10 places including five living room and five stables were adapted in different geographical directions (north, south, east, west & center). The specimens were gathered by handcatch method using a forceps...
purpose: to compare keratocyte density in stromal layers of the cornea in keratoconus, post-lasik keratectasia, lasik without keratectasia, and normal corneas by confocal scan. methods: thirty-one unscarred corneas from 22 patients with keratoconus, 24 clear corneas from 17 cases with post-lasik keratectasia, 12 corneas from 7 lasik cases without keratectasia, and 26 corneas from 13 normal subj...
The pattern of root distribution in layered soils is one of the significant issues in the calculations of soil water and irrigation management and planning. The objective of this study was to determine the pattern of root distribution of soybean in layered soils and its effect on water uptake. The research was conducted in a completely randomized design with 15 treatments consisting of three di...
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