PILLARS SPRING 2014.indd

Template - Extractive Industries v6.indd

Spring 2006.indd

This discussion encompasses the various types of human capital intangible assets. Some of these human capital intangibles qualify as intellectual property. Of course, like general commercial intangible assets, many human capital intangibles do not qualify as intellectual property. The most common type of human capital intangible is a business unit’s trained and assembled workforce. The assemble...

Self-Assembling Organic Micro-/Nano-Pillars on Gold and Glass Surfaces

In this work, we report the formation of a family of organic micro-/nano-pillars prepared from surface-assisted self-assembly processes and factors controlling the growth of the pillars. These acids include cyanuric acid (CA), 1,3,5-benzenetricarboxylic acid (TMA), 1,2,4,5-benzenetetracarboxylic acid (TA) and 3,4,9,10-perylenetetracarboxylic acid (PTA). Aqueous solutions mixed with acids and me...

Insect adhesion on rough surfaces: analysis of adhesive contact of smooth and hairy pads on transparent microstructured substrates

Insect climbing footpads are able to adhere to rough surfaces, but the details of this capability are still unclear. To overcome experimental limitations of randomly rough, opaque surfaces, we fabricated transparent test substrates containing square arrays of 1.4 µm diameter pillars, with variable height (0.5 and 1.4 µm) and spacing (from 3 to 22 µm). Smooth pads of cockroaches (Nauphoeta ciner...

Synthesis and mechanical response of disordered colloidal micropillars.

We present a new approach for studying the uniaxial compressive behavior of colloidal micropillars as a function of the initial defect population, pillar and colloid dimension, and particle-particle interaction. Pillars composed of nanometer scale particles develop cracks during drying, while pillars composed of micron scale particles dry crack-free. We subject the free-standing pillars, with d...