The present study was conducted to determine the best feeding rates expressed as percent of body weight in Persian sturgeon fingerlings at different body weights. Eighteen fiberglass tanks each holding 30 fingerlings with an average initial body weight of 19.45 ± 0.5 g were used in this experiment. Six different feeding trials (1, 2, 3, 4, 5 and 6 percent of body weight) were employed an...

Today concrete is most generally utilized development material in the world due to its strength and sturdiness properties. To attain good strength, curing of concrete is important so we introduce the concept of self-curing concrete rather than immersion or sprinkle curing to avoid water scarcity. It was observed that water solvent polymers can be utilized as a self-curing agent, i.e. polyethyle...

Aluminum matrix composites are widely employed in aerospace, military, automobile, and transport applications. The high-strength with low-weight materials required to fulfill the requirement of high-performance reinforced hard reinforcements obtain high-strength-to-weight properties for using process parameters fabrication technique define mechanical tribological properties. Many types optimiza...

CONTEXT Obesity in the United States has increased dramatically during the past several decades. There is debate about optimum calorie balance for prevention of weight gain, and proponents of some low-carbohydrate diet regimens have suggested that the increasing obesity may be attributed, in part, to low-fat, high-carbohydrate diets. OBJECTIVES To report data on body weight in a long-term, lo...

The addition of short carbon fibers in the optimum amount of 0.5% of the cement weight to mortar increased the brick-to-mortar bond strength by 150% under tension and 110% under shear when the gap between the adjoining bricks was fixed, and by 50% under tension and 44% under shear when this gap was allowed to freely decrease due to the weight of the brick above the joint. This effect is attribu...

Electro-hydrostatic actuators (EHAs) are expanding their application fields due to combined advantages of electric and hydraulic actuation. However, the control performance, weight, efficiency turn out be more challenging requirements when EHA power level increases over 30 kW. Therefore, a preliminary design dedicated trading off system-level performance based on multi-domain coupling analysis ...

grape is used in large amounts and different types (fresh, raisin, vinegar, molasses, juice, unriped grape and etc). remarkable amount also are preserved in stores and cold-rooms to be supplied out of season, that causes  quality and weight decrease. this research was conducted to study different factors which affect the grape shelf-life. obtaining more information about optimum conditions and ...

This paper investigates the optimization of 3D printing by 1.75 mm filaments poly-lactic acid (PLA) materials. The samples are printed separately and glued together to join tensile device for failure load checking surface roughness. method in this research is Fused Deposition Modeling (FDM), which parameters Infill Percentage (IP), Extruder Temperature (ET), Layer Thickness (LT) considered vari...