This paper tries to achieve a solution for problems that concern condensation around a flat plate, circular and elliptical tube in by numerical and analytical methods. Also, it calculates entropy production rates. At first, a problem was solved with mesh dynamic and rational assumptions; next it was compared with the numerical solution that the result had acceptable errors. An additional suppor...

This paper presents a new model for predicting the compressive strength of steel-confined concrete on circular concrete filled steel tube (CCFST) stub columns under axial loading condition based on Artificial Neural Networks (ANNs) by using a large wide of experimental investigations. The input parameters were selected based on past studies such as outer diameter of column, compressive strength...

A. Continuous Gradients 1. Measure the volume of the DNA solution. For every milliliter, add exactly 1 g of solid CsCl. 2. Warm solution to 30C to facilitate the dissolution of the salt. Mix until dissolved 3. Add 0.8 mL of ethidium bromide (10 mg/mL in water) for every 10 mL of DNA/CsCl solution. 4. Mix the ethidium bromide solution with the denser DNA/CsCl solution. 5. The final density shoul...

sometimes the need for non-circular ducts arises in many heat transfer applications because of lower pressure drop of non-circular cross section such as square duct compared to circular tube, particularly in compact heat. but square cross section has poor heat transfer performance and it is expected that using a nanofluid as a new heat transfer media may improve the heat transfer performance of...