North Carolina State University

About: North Carolina State University is a education organization based out in Raleigh, North Carolina, United States. It is known for research contribution in the topics: Population & Thin film. The organization has 44161 authors who have published 101744 publications receiving 3456774 citations. The organization is also known as: NCSU & North Carolina State University at Raleigh.

Do I really have to? User acceptance of mandated technology

Abstract: Extensive research supports the notion that usefulness and ease of use are primary drivers of user intentions to adopt new technology. However, this research has been conducted primarily in environ...

Surface modification of Sylgard-184 poly(dimethyl siloxane) networks by ultraviolet and ultraviolet/ozone treatment.

Abstract: We report on the surface modification of Sylgard-184 poly(dimethyl siloxane) (PDMS) networks by ultraviolet (UV) radiation and ultraviolet/ozone (UVO) treatment. The effects of the UV light wavelength and ambient conditions on the surface properties of Sylgard-184 are probed using a battery of experimental probes, including static contact angle measurements, Fourier transform infrared spectroscopy, near-edge X-ray absorption fine structure, and X-ray reflectivity. Our results reveal that when exposed to UV, the PDMS macromolecules in the surface region of Sylgard-184 undergo chain scission, involving both the main chain backbone and the side groups. The radicals formed during this process recombine and form a network whose wetting properties are similar to those of a UV-modified model PDMS. In contrast to the UV radiation, the UVO treatment causes very significant changes in the surface and near-surface structure of Sylgard-184. Specifically, the molecular oxygen and ozone created during the UVO process interact with the UV-modified specimen. As a result of these interactions, the surface of the sample contains a large number of hydrophilic (mainly -OH) groups. In addition, the material density within the first approximately 5 nm reaches about 50% of that of pure silica. A major conclusion that can be drawn from the results and analysis described in this work is that the presence of the silica fillers in Sylgard-184 does not alter the surface properties of the UVO- and UV-modified Sylgard-184.

Getting It Together: Temporal Coordination and Conflict Management in Global Virtual Teams

Abstract: In this study, we examined the effects of temporal coordination on virtual teams supported by an asynchronous communication technology (Lotus Notes). Specifically, we evaluated the moderating role of a temporal coordination mechanism, process structure, on the relationship between conflict management behavior and virtual team performance. An experiment was conducted with 35 five-person teams in the United States and Japan. Our findings show that the way virtual teams manage internal conflict is a crucial factor in their success and that temporal coordination has some significant moderating effects.