Controlled intermittent interfacial bond concept for composite materials

Concept will enhance fracture resistance of high-strength filamentary composite without degrading its tensile strength or elastic modulus. Concept provides more economical composite systems, tailored for specific applications, and composite materials with mechanical properties, such as tensile strength, fracture strain, and fracture toughness, that can be optimized

You must all be Interned : Identity Among Internees in Great Britain during World War II

Between 1933 and 1940, the United States, Great Britain and most other developed nations saw an influx of German refugees entering their borders attempting to be free of the tyranny of Hitler’s National Socialism. Many of those fleeing from Germany were intellectuals: authors, teachers, artists, or thinkers who faced persecution in their homeland. For the men, women, and children who chose the British Isles as their new home, Great Britain symbolized hope for a life free from persecution. By 1941, however, many refugees from Germany found themselves arrested and put into camps, not by the Nazis, but by their protectors, the British

An optimal controller based on linear approximation of an acoustical test facility, part B Final report

Optimal digital controller based on linear approximation of acoustical test facility, for determining effects of supersonic rocket engine noise on vehicle surfac

VALUE ADDED IN FOOD MANUFACTURING AND RETAILING: A RATIO ANALYSIS OF MAJOR U.S. STATES

Agribusiness,

Design of a lattice-based faceted classification system

We describe a software reuse architecture supporting component retrieval by facet classes. The facets are organized into a lattice of facet sets and facet n-tuples. The query mechanism supports precise retrieval and flexible browsing

Rapid Microwave-Assisted Synthesis of Dextran-Coated Iron Oxide Nanoparticles for Magnetic Resonance Imaging

Currently, magnetic iron oxide nanoparticles are the only nano-sized magnetic resonance imaging (MRI) contrast agents approved for clinical use, yet commercial manufacturing of these agents has been limited or discontinued. Though there is still widespread demand for these particles both for clinical use and research, they are difficult to obtain commercially, and complicated syntheses make in-house preparation infeasible for most biological research labs or clinics. To make commercial production viable and increase accessibility of these products, it is crucial to develop simple, rapid, and reproducible preparations of biocompatible iron oxide nanoparticles. Here, we report a rapid, straightforward microwave-assisted synthesis of superparamagnetic dextran-coated iron oxide nanoparticles. The nanoparticles were produced in two hydrodynamic sizes with differing core morphologies by varying the synthetic method as either a two-step or single step process. A striking benefit of these methods is the ability to obtain swift and consistent results without the necessity for air, pH, or temperature sensitive techniques; therefore, reaction times and complex manufacturing processes are greatly reduced as compared to conventional synthetic methods. This is a great benefit for cost-effective translation to commercial production. The nanoparticles are found to be superparamagnetic and exhibit properties consistent for use in MRI. In addition, the dextran coating imparts the water-solubility and biocompatibility necessary for in vivo utilization.Comment: 19 pages, 5 figures, 1 tabl

Distributions of secondary muons at sea level from cosmic gamma rays below 10 TeV

The FLUKA Monte Carlo program is used to predict the distributions of the muons which originate from primary cosmic gamma rays and reach sea level. The main result is the angular distribution of muons produced by vertical gamma rays which is necessary to predict the inherent angular resolution of any instrument utilizing muons to infer properties of gamma ray primaries. Furthermore, various physical effects are discussed which affect these distributions in differing proportions.Comment: 36 pages, 13 figures, minor revision, new layou