With the International Space Station being extended to 2020, there is additional emphasis in the manned spaceflight program to find more efficient and effective ways of providing the ground-based mission support. This search for improvement has led to a cross-fertilization between the advanced software development community and the manned spaceflight operations community. Many mission operation...

D. E. Chang,1 A. S. Sørensen,2 P. R. Hemmer,1,3 and M. D. Lukin1,4 1Physics Department, Harvard University, Cambridge, Massachusetts 02138, USA 2Niels Bohr Institute, DK-2100 Copenhagen Ø, Denmark 3Electrical Engineering Department, Texas A&M University, College Station, Texas 77843, USA 4Harvard-Smithsonian Center for Astrophysics, ITAMP, Cambridge, Massachusetts 02138, USA Received 24 March 2...

dust pollution has become a serious environmental problem especially in recent decades. the present study aim was the investigation of the levels of pm10 concentration in kermanshah, western iran and also measured five important heavy metals (pb, cd, as, hg and cr) in some samples during 2005 to 2011.a total 2277 samples were collected from air pollution measurement station belonging to the dep...

[1] Based on year-long cross-correlations of broad-band seismic records obtained at sixty-six stations within or adjacent to the Pacific Basin, we show that broad-band ambient noise is observed to propagate coherently between island stations and between island and continent stations. For many station pairs, high signal-to-noise ratio (SNR) fundamental mode Rayleigh wave Green functions are obse...

We analyze pattern formation in doubly resonant intracavity second-harmonic generation in the presence of competing nondegenerate parametric downconversion. We show that for positive cavity detuning of the fundamental frequency the threshold for parametric oscillation is lower than that of transverse, pattern forming instabilities. The parametric oscillation strongly modifies the pattern dynami...

The Synchronized Position Hold Engage Reorient Experimental Satellites (SPHERES) are an experimental testbed for guidance, navigation and control algorithms that has been operated, by astronauts, inside the crew volume of the International Space Station (ISS) since 2006. In October 2012, the MIT Space Systems Laboratory and Aurora Flight Sciences will launch a vision based navigation upgrade to...

Zeng-Hua Li, Lie-Wen Chen, 2 Che Ming Ko, Bao-An Li, and Hong-Ru Ma Institute of Theoretical Physics, Shanghai Jiao Tong University, Shanghai 200240, China Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China Cyclotron Institute and Physics Department, Texas A&M University, College Station, Texas 77843-3366, USA Department of Physics, Texas ...

1Pee Dee Research and Education Center, Entomology, Soils, and Plant Sciences, Clemson University, 2200 Pocket Road, Florence, SC 29506-9706, USA; 2Soils and Crops Research and Development Centre, Agriculture and Agri-Food Canada, 2560 Hochelaga Blvd., Sainte-Foy, Québec, Canada G1V 2J3; 3Department of Crop and Soil Sciences, Washington State University, Pullman, WA 99164-6420, USA. Technical C...

10. Work Unit No. (TRAIS) 9. Performing Organization Name and Address Texas Transportation Institute The Texas A&M University System College Station, Texas 77843-3135 11. Contract or Grant No. Project 0-4863 13. Type of Report and Period Covered Technical Report: September 2004 B July 2006 12. Sponsoring Agency Name and Address Texas Department of Transportation Research and Technology Impleme...