Draft Draft Draft Draft Draft Draft Draft Draft

مقاومت کششی ، مقاومت ویژه و توان مالبندی موردنیاز گاو آهن قلمی (چیزل) ، در سطوح مختلف رطوبت خاک و عمق شخم

The effects of three levels of soil moisture content (8-10, 10-12 and 12-14% d.b.) and three levels of plowing depth (15, 20 and 25 cm) on draft, specific draft and drawbar power requirement of a 7-shank chisel plow in a clay loam soil were investigated. The experimental design was a randomized complete block design with a 3×4 factorial. The effect of plowing depth on all of the parameters ment...

Numerical Study of a Pipe Extension Effect in Draft Tube on Hydraulic Turbine Performance

Draft tube of Francis type hydraulic turbine usually consists of: cone, elbow and diffuser. On the contrary, in some power stations an extra pipe should be added to the draft tube at the bottom of cone because of installation limitation. In this paper, this special case has been numerically studied. To this end CFD analysis was applied to simulate all parts of hydraulic turbine. A homogeneous m...

Draft and drawbar power equirement of moldboard plow in a clay loam soil

تدوین پیشنویس قانون سلامت روان

Objectives Mental health acts have been developed in different countries to protect human and civil rights of people with psychiatric disorders. In Iran, although there are some scattered laws within the existing body of laws, there is no separate mental health act. The aim of the present project was to prepare a draft pertaining to the mental health act in the country. Methods The draft of th...

مقاومت کششی ، مقاومت ویژه و توان مالبندی موردنیاز گاو آهن قلمی (چیزل) ، در سطوح مختلف رطوبت خاک و عمق شخم

The effects of three levels of soil moisture content (8-10, 10-12 and 12-14% d.b.) and three levels of plowing depth (15, 20 and 25 cm) on draft, specific draft and drawbar power requirement of a 7-shank chisel plow in a clay loam soil were investigated. The experimental design was a randomized complete block design with a 3×4 factorial. The effect of plowing depth on all of the parameters ment...

Investigation of a Cold Model of Internally Circulating Fluidized Bed with Draft Tube to be used as a two-Zone Fluidized Bed Reactor

In this research, a cold model of internally circulating fluidized bed is investigated. The aim is to find the effects of some of the operating parameters on the performance of the reactor. Experiments were carried out in a glass column (30 mm i.d. and 25 cm height) with a centrally located draft tube (11 mm i.d. and 5 or 7 cm height). The bed was loaded with white silica particles (dp = 0.15 -...