Results 121 to 130 of about 2,159,370 (313)

The distribution of asteroids: evidence from Antarctic micrometeorites [PDF]

open access: yes, 2002
The relative abundances of types amongst 550 AMMs are reported. These suggest that C-type asteroids vary from petrologic type 1 to 3.2 and that the majority of S-type asteroids are chondrule ...
Genge, M. J., Grady, Monica
core  

Thermal stability and nitrogen redistribution in the〈Si〉/Ti/W–N/Al metallization scheme [PDF]

open access: yes, 1986
Backscattering spectrometry, Auger electron spectroscopy, and x‐ray diffraction have been used to monitor the thin‐film reactions and nitrogen redistribution in the 〈Si〉/Ti/W–N/Al metallization system.
Kattelus, H. P.   +5 more
core   +2 more sources

Predicted Brightness of Starlink Internet Satellites at 350 km [PDF]

open access: yesarXiv
SpaceX recently proposed to orbit 19,440 Starlink internet satellites at a low altitude of 350 km instead of the current 550 km. The distribution in the sky and the apparent magnitudes of these spacecraft are simulated in this paper. During astronomical twilight the impact of spacecraft at 350 km on astronomical observations would be more severe than ...
arxiv  

Intro to WF ED 550

open access: yes, 2020
Introduction to WF ED 550, Reseatch in Workforce Education, Penn State, January ...
openaire   +1 more source

Distribution of the largest eigenvalues of the Levi - Smirnov ensemble [PDF]

open access: yesActa Phys.Polon. B35 (2004) 541-550, 2002
We calculate the distribution of the k-th largest eigenvalue in the random matrix Levi-Smirnov (LSE) ensemble, using the spectral dualism between LSE and chiral Gaussian Unitary Ensemble (GUE). Then we reconstruct universal spectral oscillations and we investigate an asymptotic behavior of the spectral distribution.
arxiv  

Hybrid laws: constitutionalizing private governance networks [PDF]

open access: yes, 2005
s.a.: Das Recht hybrider Netzwerke. Zeitschrift für das gesamte Handelsrecht und Wirtschaftsrecht 165, 2001, 550-575.. Italienische Fassung: Diritti ibridi: la costituzionalizzazione delle reti private di governance.
Teubner, Gunther
core  

Linear Array Design with Switched Beams for Wireless Communications Systems

open access: yesInternational Journal of Antennas and Propagation, 2015
This paper presents an analysis for optimal design of switched beamforming applied to a linear array for wireless communication systems. The beam switching scheme provides coverage of a given sector in azimuth and controls the sidelobe level ...
Vinícius Ludwig-Barbosa   +5 more
doaj   +1 more source

Restructuring Medicare's Benefit Design: Implications for Beneficiaries and Spending [PDF]

open access: yes, 2011
Estimates the effects of options for restructuring Medicare's fee-for-service benefit design, including a $550 deductible for Parts A and B, a 20 percent coinsurance on nearly all services, and a $5,500 limit on cost sharing for Medicare-covered ...
James Mays   +4 more
core  

Changes on microbial C and enzyme activities in soil with amendment of composted tannery sludge after 9 years

open access: yesInternational Journal of Recycling of Organic Waste in Agriculture
Purpose The consecutive amendment of composted tannery sludge (CTS) could promote changes in the status of soil microorganisms. Thus, this study evaluated the changes on microbial C and enzyme activities in soil after 9 years of CTS amendment.
Antonio Victor Cavalcante Rocha Silva   +6 more
doaj   +1 more source

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