in this study, a one-dimensional model called dyresm was used to simulate the thermal structure and artificial destratification of 15-khordad reservoir over a period of one year. the simulation showed that the reservoir is warm monomictic and is stratified during 210 days of the simulation year. the model reproduced the temperature of the meta- and hypolimnion very close to the observed data, b...

Harnessing the remaining energy downstream of dams has recently gained significant attention as kinetic available in water current is considerable. This work developed a novel study to quantify gain using horizontal-axis hydrokinetic turbine with diffuser. The present assessment uses field data from Tucuruí Dam, where stream velocity 2.35 m/s at which highest extraction can occur. In this case,...

To evaluate the thermal environment in classrooms, physical measurements were conducted laboratory conditions. The objective of study is to compare performance four typical air distribution methods both heating and cooling modes a mock-up classroom. included corridor-wall grille, displacement ventilation concept using two low-velocity units, ceiling diffuser, perforated duct diffuser. There thr...

Investigation of Spatial Intensity Distribution by Using an Optical Diffuser in the Colorimetric Microscopy Setup

We describe a method for designing a one-dimensional random surface that acts as a Lambertian diffuser. The method is tested using rigorous computer simulations and is shown to yield the desired scattering pattern. Optical devices that give rise to a scattered intensity that is proportional to the cosine of the scattering angle are frequently used in the optical industry, e.g. for calibrating s...

PURPOSE To characterize the effects of visual form deprivation by diffuser in marmoset monkey eyes across a range of ages. METHODS Twenty-four common marmosets were grouped by onset of deprivation (group 1: 0-39 days, n = 6; group 2: 40-99 days, n = 10; and group 3: 100-200 days, n = 8). Monocular form deprivation was induced with a white translucent diffuser worn for 28 to 88 days (mean dura...

Abstract Wood charcoal is a sustainable, renewable, and environmentally friendly material with the use that acoustic device can produce. Charcoal made of wood waste materials allows for improving indoor acoustical quality. Therefore, this objective article to investigate sound scattering coefficients QRD perforation ratio oak elements. Sound coefficient calculated measurement reverberation time...