J. Dobránsky, P. Baron, M. Kočiško, Faculty of Manufacturing Technologies with a seat in Prešov, Technical University of Košice, Slovak Republic L. Běhálek, Faculty of Manufacturing Technologies, Technical University of Liberec, Czech Republic E. Vojnová, 1.PN Moulds and Tools, Prešov, Slovak Republic This article deals with improvement of design properties of molded plastic parts. It can be ac...

Behaviors of individuals in teams both contribute to and are molded by team dynamics. How they do so has been the subject of much research. A method of portraying individuals' behaviors in teams, the Team Diagramming Method (TDM) is presented. Behaviors are rated by other team members on three important dimensions: positivity/negativity, dominant/submissive, and task-orientedness/expressiveness...

Double emulsions are useful in a number of biological and industrial applications in which it is important to have an aqueous carrier fluid. This paper presents a polydimethylsiloxane (PDMS) microfluidic device capable of generating water/oil/water double emulsions using a coaxial flow focusing geometry that can be fabricated entirely using soft lithography. Similar to emulsion devices using gl...

The purpose of this special issue is to explore social inequalities in the digital environment. The motivation for this issue is derived from the disproportionate focus on technological and economic aspects of the Information Society to the detriment of sociological and cultural aspects. The research presented here falls along three dimensions of inequality. Two papers explore the ways that rac...

We report the analysis of glass vessels recovered from 1st millennium BC contexts at the site of Gordion, the ancient capital of the Anatolian Kingdom of Phrygia (in modern day Turkey). The Phrygians (c.8 th -7 th century BC) were renowned for their metalworking skills and produced vessels in a distinctive “Phrygian” style. While no archaeological evidence has yet been found to support local gl...

This paper introduces approaches that combine micro/nanomolding, or nanoimprinting, techniques with proximity optical phase mask lithographic methods to form three dimensional (3D) nanostructures in thick, transparent layers of photopolymers. The results demonstrate three strategies of this type, where molded relief structures in these photopolymers represent (i) fine (<1 microm) features that ...

PURPOSE The impact strength and the flexural properties of denture base materials are of importance in predicting their clinical performance upon sudden loading. This study compares the impact and transverse strengths and the flexural modulus of three denture base polymers. MATERIALS AND METHODS The investigation included a relatively new microwave-polymerized polyurethane-based denture mater...

Research at the Materials Research Laboratory, Pennsylvania State University has demonstrated the potential for improving hydrophone performance using piezoelectric ceramic/polymer composites. As part of an ONR-funded initiative to develop cost-effective manufacturing technology for these composites, Materials Systems is pursuing an injection molding ceramic fabrication approach. This paper bri...