The Alcoa ram fastener: A reusable blind rivet

Results of tensile, shear, fatigue and accelerated weathering tests are presented for the ram fastener, a reusable, single unit blind rivet. The effects of variations in hole size, grip length and sheet thickness on strength properties of the fastener were determined. The test results show these fasteners to have strength characteristics suitable for light structural applications. Exposure to accelerated weathering did not impair their performance

Aquatic Macroinvertebrates of "Bray Creek" and "Frog Alley", Two Unnamed Agricultural Drainages in the Upper Mackinaw River Drainage

Final Report issued June 30, 2005Report issued on: June 30, 2005INHS Technical Report prepared for Dr. Maria Lemke, Illinois Chapter, Nature Conservanc

Condition of streams and other aquatic resources in Kane County Forest Preserve District parcels

Kane County Forest Preserve District Grant/Contract No: 2005-5291INHS Technical Report Prepared for Kane County Forest Preserve Distric

Summer Ephemeroptera, Plecoptera and Trichoptera of Southwestern of 15 Drainages in Great Smoky Mountains National Park

INHS Technical Report prepared for unspecified recipien

High temperature epsilon-near-zero and epsilon-near-pole metamaterial emitters for thermophotovoltaics

We propose a method for engineering thermally excited far field electromagnetic radiation using epsilon-near-zero metamaterials and introduce a new class of artificial media: epsilon-near-pole metamaterials. We also introduce the concept of high temperature plasmonics as conventional metamaterial building blocks have relatively poor thermal stability. Using our approach, the angular nature, spectral position, and width of the thermal emission and optical absorption can be finely tuned for a variety of applications. In particular, we show that these metamaterial emitters near 1500 K can be used as part of thermophotovoltaic devices to surpass the full concentration Shockley-Queisser limit of 41%. Our work paves the way for high temperature thermal engineering applications of metamaterials.Comment: 15 pages, 8 figure

Characterization of a space orbited incoherent fiber optic bundle

The results of a study performed to determine the effects of adverse space environments on a bundle of over 1800 optical fibers orbited for 69 months are reported. Experimental results are presented on an incoherent fiber optic bundle oriented in low Earth orbit aboard the Long Duration Exposure Facility (LDEF) satellite as part of the Space Environment Effects Experiment (M0006). Measurements were performed to determine if space induced radiation effects changed the fiber bundle characteristics. Data demonstrating the success of light transmitting fibers to withstand the adverse space environment are presented