نتایج جستجو برای: m models

تعداد نتایج: 1404048  

2017
S. Shanmugasundaram P. Banumathi

This paper explored the future behavior of railway system, using Monte Carlo Simulation techniques, where find out and to reduce the customer waiting time and also ensure to provide the better service to the customers .Hence this studies revealed and fulfilled the customer needs and expectations and also maintaining the customer satisfaction level. This study based on the arrival and service pa...

M.Y. Rahimi Ardabili

The linear adiabatic pulsation-periods of Mira variable stars have been derived. Approximately 2701[1]models were calculated for M = 0.7 MΘ to 2 MΘ stars with radii from 180 RΘ to 340 RΘ and luminosities from 2800 LΘ to 10,000 LΘ. The chemical composition of all models is (X,Z) = (0.7,0.02). From the result of this study, linear relations on Luminosity-Period-Mass relationship and luminosity-pe...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم ریاضی 1390

مساله مکان?یابی ماکزیمم پوشش از جمله پرکاربردترین مسائل مکان?یابی محسوب می شود. در این مساله هدف تعیین مکان p مرکز سرویس و تخصیص نقاط تقاضا به آنها به گونه ای است که جمعیت سرویس داده شده ماکزیمم شود. یک از معیارهایی که موجب افزایش کیفیت خدمات رسانی توسط مراکز سرویس می شود، توجه به میانگین زمان انتظار در مراکز سرویس می باشد. در این رساله سه مساله مکان یابی ماکزیمم پوشش مورد بررسی قرار می گیرد....

Journal: :international journal of environmental research 2012
s.m.t. sadatipour r. kiamehr m. abrehdary a.r. sharifi

one of the difficulties in using absolute altitudes is the separation between the mean open sealevel and geoid. theoretically, geoid is the base level in absolute altitudes, but practically, the mean open sealevel is used as a base level for absolute altitudes. the difference between these two levels is called as the seasurface topography. in this research, it is dealt the mean sea level modeli...

Madhu Jain, R. Singh Pundhir

In this paper, we consider a multi-server queuing system in which additional servers are allowed for a longer queue to reduce the customer’s balking and reneging behavior. The customers are assumed to arrive in Poisson fashion and their service- times follow exponential distribution. The number of servers in long run depends on the queue-length. We obtain equilibrium queue size distribution. Th...

     One of the important goals of natural resource management is to conserve plant diversity in the ecosystem so that sites are more productive and more ecologically stable at the various situations. Different diversity indices have been presented to study the species status of natural ecosystems. One of these indicators is the use of empirical distribution models that each of these models ind...

افروزی, علی, زارع ابیانه, حمید,

Regarding the reliance of the agricultural and industrial sections and the drinking water on the groundwater resources in Hamadan province, the modeling and forecasting groundwater level fluctuations to utilize the resources is a basic necessity. One of the usual method in this way is the utilization of the time series models that give simply and clearly good short-term forecasts if the models ...

Mountain vipers of the genus Montivipera, generally, and the species of the Raddei clade, specifically, are interesting examples of species neo-endemism in Iran, Anatolia, and the Caucasus. Given the critical conservation status of these species, it is necessary to identify their suitable habitats for prioritizing conservation measures. We modeled ecological niche of each species based on four ...

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