نتایج جستجو برای: improved model

تعداد نتایج: 2466432  

Journal: :Desalination and Water Treatment 2013

Journal: : 2022

Based on China’s population data from 1953 to 2020, the Leslie model combines fertility rate of women childbearing age by region and age, sex ratio birth population, mortality rate, migration between urban rural areas curve fitting function, application ARIMA predict rates construct a discrete dynamics system in order future development trajectory. The improved Leslie, BP Malthus models were co...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1391

since its introduction in 1959, translation quality assessment (tqa) has been among the most addressed research topics in translation studies. during recent years, there has been a crucial increase on the study of tqa. various methods have come on scene. although these methods are based on scientific theories, most of them have remained at the level of theory. juliane house’s model is among tho...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 0

a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...

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