نتایج جستجو برای: constant development
تعداد نتایج: 1616874 فیلتر نتایج به سال:
In wide-ranging areas, including hydraulics, biomedical, automotive, and aerospace, there is often a need to move fluid with constant flow rate. This difficult achieve any type of pump usually other elements are inserted regularize the output. study focused on peristaltic because few studies it has some interesting features, such as extreme simplicity, small number components, compactness whole...
According to Newton’s law of gravity, two masses interact with each other via a central force which can be derived from the potential VN (r) = −Gm1m2/r where G is a universal constant known as Newton’s constant. Likewise, according to Coulomb’s law, two electrically charged particles with charges n1e and n2e interact via the central potential VCb (r) = αn1n2/r where e is the elementary charge a...
this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...
the study of air infiltration into the buildings is important from several perspectives that may be noted to energy and design of hvac systems, indoor air quality and thermal comfort and design of smoke control systems. given the importance of this issue, an experimental and numerical study of air infiltration through conventional doors and windows has been explored in iran. to this end, at fir...
آموزش واژه با بهره گیری از یادگیری تلفیقی و نرم افزارهای چند رسانه ای در کلاس های آموزش زبان انگلیسی
the purpose of this study was to investigate the impact of blended learning and multimedia softwares on iranian efl students vocabulary learning. in addition, the present study tried to examine the extent to which multimedia softwares can be applied into efl classes in iran. it also attempted to find out students attitudes toward using these softwares. to this end, 87 iranian efl learners at el...
the effect of poss instruction in comparison with conventional instruction on development of esp learners’ parts of speech knowledge and attitude toward call.
Iran including attractive places and high potential for tourism (external and internal) and investing on tourism industry including social and economic effects leading to constancy of tourism areas. Unfortunately, despite high capacity of developing tourism in our country, this capacity has not recognized well and has not utilized for development of Iran. The special factors influence on transi...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید