Heuristic Criteria for Selecting an Optimal Aspect Ratio in a Two-variable Line Plot

Development of an optimal model of criteria for selecting the presidents of the universities in Iran

Objective: The selection of the presidents of the universities, considering the role of the university in today's knowledge-based world, becomes more complex every year. It is therefore expected that a careful and informed process be used when appointing or selecting such a manager. Considering the importance of selecting university presidents based on appropriate criteria, the present study wa...

High-aspect-ratio line focus for an x-ray laser by a deformable mirror.

A high-aspect-ratio line focus is required on a plane target in x-ray laser experiments for obtaining a high gain-length product. Inherent wave-front aberrations in line-focusing optics, which consist of a cylindrical lens and a spherical lens, are discussed with respect to beam diameter. The nonuniformity of the linewidth that is due to the aberrations is also calculated by the ABCD matrix met...

Optimal pixel aspect ratio for enhanced 3D TV visualization

An Experimental Investigation of the Flowfield over a Low Aspect Ratio Wing

A wind tunnel investigation was performed to study the flow field over a 70° swept sharped edge delta wing model at high angles of attack. The experiments were conducted in the subsonic wind tunnel at the Department of Mechanical Engineering, Sharif University of Technology. Velocity profiles have been measured using a special pitot tube and hot wire anemometer at angles of attacks of 10 to 35 ...

Synthesis of variable-aspect-ratio, single-crystalline ZnO nanostructures.

Variable-aspect-ratio (length/diameter), one-dimensional (1-D) ZnO nanostructures (nanorods and nanowires) were prepared in alcohol/water solution by reacting a Zn2+ precursor with an organic weak base, tetramethylammonium hydroxide (Me4NOH). The effect of the experimental parameters (temperature, base concentration, reaction time, and water content) on nucleation, growth, and the final morphol...