نتایج جستجو برای: heckman two stage analysis

تعداد نتایج: 4895346  

Journal: :Energies 2023

The aim of this study was to carry out the investigation and analysis two-stage magnetic precession gear dynamics determination resonance frequencies, which can be a cause powertrain system failures. Graphical interpretation is presented, two equations movable elements presented gearbox were determined. On basis these equations, stiffness coefficients frequencies mathematically derived. next st...

Journal: :International Journal of Engineering and Technology 2017

Journal: :The Journals of Gerontology Series A: Biological Sciences and Medical Sciences 2002

ژورنال: پیاورد سلامت 2019
Ghaderi, Simin, Shahraki, Mahdi,

Background and Aim: Due to the high level of out-of-pocket payments for health expenditures and the importance of household health expenditure management, this study aimed to investigate socioeconomic factors affecting Iranian urban households’ health expenditures. Materials and Methods: This descriptive-analytic and applied study was conducted cross-sectionally at national level with microeco...

Journal: :Bulletin of Mathematical Statistics 1959

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده ادبیات و علوم انسانی 1391

abstract: one of the most visited & important spaces in different countries by tourist are urban areas. the old tehran which major part is located in district 12 is historical showcase of the capital, but, its hiidden cultural attraction is not used as it should be. this thesis occasionally engage in studying the efficacy of correct installation of travel guide boards in welfare & easily acc...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید