Bulletin of the American Physical Society
2007 Joint Fall Meeting of the Texas Sections of the APS and AAPT; Zone 13 of SPS
Volume 52, Number 16
Thursday–Saturday, October 18–20, 2007; College Station, Texas
Session E1: Invited Session: Vilches and Engel |
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Chair: Joseph Ross and Roland Allen, Texas A&M University Room: Rudder Tower 601 |
Friday, October 19, 2007 2:00PM - 2:45PM |
E1.00001: One-, Two-, and Three-Dimensional Physics with Films Adsorbed on Carbon Nanotube Bundles Invited Speaker: Carbon nanotube bundles are formed by mostly parallel arrays of single-wall, closed-end carbon nanotubes of about one nanometer diameter and micrometer length, each bundle having from about 30 to over a hundred nanotubes. The nanotubes in the bundles are not of uniform diameter, which leads to bundles not being perfect stacks of nanotubes. On these bundles, one-, two-, and three-dimensional forms of matter can be formed by physisorption. In this presentation I will give a brief introduction to the changes in the solid-liquid-vapor phase diagram of simple substances brought in by dimensionality, followed by introducing carbon nanotube bundles and physisorption. I will use results from current measurements of adsorption isotherms, heat capacity, and neutron diffraction to illustrate to what extent theoretical expectations and experimental results agree (and disagree). I will conclude this presentation with comments on future experiments using a single carbon nanotube as a physisorption substrate. The work described is being carried out in collaboration with David Cobden, Subramanian Ramachandran, and Zenghui Wang. [Preview Abstract] |
Friday, October 19, 2007 2:45PM - 3:30PM |
E1.00002: China and India: A New Sputnik? Invited Speaker: Fifty years ago, the launch of Sputnik fueled unprecedented public interest in and support of science. Going from 1958 to 1959, Congress increased NSF funding by a factor of five. Since then, public interest and government support have eroded. In the last the last few years, however, the public has become increasingly aware of global competition for jobs and technological supremacy, particularly from China and India, together 40\% of world population. Congress recently responded with the passage of the America COMPETES Act, which was signed into law in August. This talk will review how the federal government works and how it deals with science. After a review of current happenings and upcoming challenges, participants will learn how they can effect change in policies that affect science and scientists. [Preview Abstract] |
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