We present a time-dependent cosmic-ray modified shock model for which the calculated Hα emissivity profile agrees well with the Hα flux increase ahead of the Balmer-dominated shock at knot g in Tycho’s supernova remnant, observed by Lee et al. (2007). The backreaction of the cosmic ray component on the thermal component is treated in the two-fluid approximation, and we include thermal particle ...

The use of boron tri-bromide as a source precursor for low energy boron implantation is studied in this work. Details of gas delivery system, beam purity and running performance have been investigated for a 75keV molecular implant to give an equivalent boron energy of 5keV. The behavior of the Br during thermal processing is compared to that of F derived from a BF2 implant and is seen to be les...

The superlative electrical conductivities of copper (5.96×10S/m) and silver (6.30×10S/m) make them attractive candidates for interconnects in electronic devices, such as CMOS circuits, solar cells and plastic electronics. These factors have stimulated research to identify precursors for the ALD of copper thin films. The cyclopentadienyl copper tertiarybutyl isocyanide precursor, [CpCu(BuCN)] ha...

A nanolaboratory—a prototype nanomanufacturing system—is presented, which is composed with a nanorobotic manipulation system with 4 units and 16 degrees-offreedom (DOFs), a nano fabrication system based on electron-beam-induced deposition (EBID) with an internal or external precursor evaporation reservoir equipped with a thermal field emission electron source or a nanotube cold cathode, and a r...

Biological macromolecules experience two seemingly very different types of noise acting on different time scales: i) point mutations corresponding to changes in molecular sequence and ii) thermal fluctuations. Examining the secondary structures of a large number of microRNA precursor sequences and model lattice proteins, we show that the effects of single point mutations are statistically indis...

A W-containing inorganic-organic nanohybrid with a plate-like morphology has been successfully prepared through a nonaqueous synthetic route using WCl(6) as the tungsten source and benzyl alcohol as the solvent. The as-prepared hybrid nanomaterial was used directly as an efficient precursor for the formation of WO(3) nanoplates via a simple thermal treatment process. The as-obtained WO(3) mater...

All-cellulose composite fibers were produced by electrospinning dispersions containing cellulose acetate (CA) and cellulose nanocrystals (CNCs). Precursor polymer matrices were obtained after dispersion of CA with different degrees of substitution in a binary mixture of organic solvents. The obtained fibers of CA loaded with CNCs had typical widths in the nanoand micro-scale and presented a gla...

Non-thermal atmospheric pressure plasma is ionized matter, composed of highly reactive species that include positive ions, negative ions, free radicals, neutral atoms, and molecules. Recent reports have suggested that non-thermal biocompatible plasma (NBP) can selectively kill a variety of cancer cells, and promote stem cell differentiation. However as of yet, the regulation of proliferation an...

We introduce a laser assisted electron beam induced deposition (LAEBID) process which is a nanoscale direct write synthesis method that integrates an electron beam induced deposition process with a synchronized pulsed laser step to induce thermal desorption of reaction by-products. Localized, spatially overlapping electron and photon pulses enable the thermal desorption of the reaction by-produ...

Two main issues for the wide application of polymer-matrix nanocomposites need to be addressed: cost-effective processing of high-performance nanomaterials, and fundamental understanding of the nanofiller-polymer interaction related to property changes of nanocomposites. To fabricate inexpensive and robust carbon nanofibers (CNFs) by the electrospinning technique, an organosolv lignin for repla...