نتایج جستجو برای: surface dynamics

تعداد نتایج: 1046839  

Journal: :تحقیقات آب و خاک ایران 0
مریم اوسط کارشناس ارشد، دانشکده مهندسی و فناوری کشاورزی احمد حیدری استادیار، دانشکده مهندسی و فناوری کشاورزی فریدون سرمدیان دانشیار، دانشکده مهندسی و فناوری کشاورزی

balance among different fractions of a carbon sources is of paramount importance in maintenance of very important in soil quality and environmental health. on the other hand, rapid growth of world population, degradation of agricultural soils, along with release of greenhouse gasses are some of the main challenges of the 21st century. the aim of this study was to investigate the extent of chang...

ژورنال: مهندسی دریا 2023

The use of step at the bottom of the hull is one of the effective factors in reducing the resistance and increasing the stability of the Planning hull. The presence of step at the bottom of this type of hulls creates a separation in the flow, which reduces the wet surface on the hull, thus reducing the drag on the body, as well as reducing the dynamic trim. In this study, a design space was cre...

ژورنال: مهندسی دریا 2016

In this research, the effects of foulings on the outer surface of a marine vessel have been studied using the Computational Fluid Dynamics (CFD) methods. To this end, a proper turbulence model was considered and validated for the simulations. The simulation results for different fouling grades indicated that existing of a thin layer of slime could make 4.58 % increase in drag force; however, fo...

Journal: :علوم کاربردی و محاسباتی در مکانیک 0
جواد صافحیان علیرضا اکبرزاده

snake robots are hyper-redundant robots that are connected with one or two dof joints. they offer a number of potential advantages beyond the capabilities of most wheeled and legged robots. in this paper, kinematics and dynamics of a planar multi-link snake robot in worm-like locomotion on an inclined surface is investigated. in this locomotion, snake robot is able to move in the vertical plane...

Journal: :Journal of Nonlinear Science 2019

Journal: :Physics Letters B 1994

Journal: :Space Science Reviews 2013

Journal: :Biochimica et Biophysica Acta (BBA) - Biomembranes 2010

Journal: :Le Journal de Physique Colloques 1981

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