Polyvinyl alcohol (PVA) nanocomposite films with sorghum starch nanocrystals (SSN) were prepared by incorporating various concentrations of SSN in PVA. SSN was isolated using acid hydrolysis of sorghum starch. The morphological studies of SSN using atomic force microscopy (AFM) revealed that the particle size varied from 65 nm to 68 nm. The mechanical properties of PVA-SSN nanocomposite films i...

A aberration, 949 aberrations, 947 absolute pressure, 368, 388 absolute zero, 431, 461 ac current, 711, 722 ac voltage, 711, 722 acceleration, 43, 75, 126, 153 acceleration due to gravity, 62, 75 accommodation, 931, 949 accuracy, 25, 31 acoustic impedance , 615, 620 active transport, 419, 419 activity, 1131, 1140 adaptive optics, 947, 949 adhesive forces, 377, 388 adiabatic, 515 adiabatic proce...

Rights: © 2006 American Physical Society (APS). This is the accepted version of the following article: Pakarinen, O. H. & Barth, C. & Foster, A. S. & Nieminen, Risto M. & Henry, C. R. 2006. High-resolution scanning force microscopy of gold nanoclusters on the KBr (001) surface. Physical Review B. Volume 73, Issue 23. 235428/1-10. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.73.235428, whi...

The viscoelasticity of several polymers has been determined using dynamic mechanical analysis (DMA). For the same materials the sliding wear in multiple scratching along the same groove has also been determined. The materials studied were polycarbonate (PC), polystyrene (PS), styrene/ acrylonitrile (SAN), Surlyn, polyethersulfone (PES), acrylonitrile/butadiene/styrene (ABS), polypropylene (PP),...

An atomic force microscope was used to measure the loss tangent, tan , of a pressure-sensitive adhesive transfer tape as a function of frequency (0.01 to 10 Hz). For the measurement, the sample was oscillated normal to the surface and the response of the cantilever resting on the polymer surface (as measured via the photodiode) was monitored. Both oscillation amplitude and phase were recorded a...

Vortex is a topological defect with a quantized winding number of the phase in superfluids and superconductors. Here, we investigate the crystallized (triangular, square, honeycomb) and amorphous vortices in rotating atomic-molecular Bose-Einstein condensates (BECs) by using the damped projected Gross-Pitaevskii equation. The amorphous vortices are the result of the considerable deviation induc...

We present a complete theoretical description of atomic storage states in the multimode framework by including spatial coherence in atomic collective operators and atomic storage states. We show that atomic storage states are Dicke states with the maximum cooperation number. In some limits, a set of multimode atomic storage states has been established in correspondence with multimode Fock state...