A compact and low-power cantilever-based sensor array has been developed and used to detect various vapor analytes. This device employs sorptive polymers that are deposited onto piezoresistive cantilevers. We have successfully detected several organic vapors, representing a breadth of chemical properties and over a range of concentrations. Comparisons of the polymer/vapor partition coefficient ...

An exactly solvable model is used to investigate the assumptions behind color transparency. 1 INTRODUCTION Color transparency (CT) is the anomalously high transparency of the nucleus to nucle-ons in quasi-elastic high-momentum transfer nuclear processes, measured with resolution good enough to insure that no " extra " pions are produced. This means that the ab-sorptive nuclear optical potential...

The feasibility of using biochar as a sorbent to remove nitro explosives and metals from contaminated water was investigated through batch experiments. Biochar, synthesized using various biomasses, showed a porous structure and a high surface area and includes embedded carbonate minerals. Compared with granular activated carbon, biochar was competitive as a sorbent for removing Cd, Cu, Pb, and ...