Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Cynthia C. Lee"'
Autor:
Jack W. Baker, Cynthia C. Lee
Publikováno v:
Journal of Earthquake Engineering. 22:708-723
This paper describes an algorithm to efficiently select ground motions from a database while matching a target mean, variance, and correlations of response spectral values at a range of periods. The approach improves an earlier algorithm by Jayaram e
Autor:
Cynthia C. Lee, Iris Tien
Publikováno v:
ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering. 4
As data for monitoring the natural and built environments become increasingly prevalent, integrating information from varied data sources offers a fuller understanding of the impacts damagi...
Publikováno v:
MRS Bulletin. 20:41-50
Second to silicon (Si), the most highly developed technology for semiconductor processing exists for gallium arsenide (GaAs). Unfortunately, GaAs processing is more complex than that of Si, mainly because GaAs is a compound semiconductor. Additionall
Autor:
Emily L. Allen, Cynthia C. Lee, Michael D. Deal, Kevin S. Jones, T. E. Haynes, H. G. Robinson
Publikováno v:
Journal of Applied Physics. 76:4571-4575
Experimental observations of dopant diffusion and defect formation are reported as a function of implant temperature in Si implanted GaAs. The diffusion of Si during post‐implant annealing decreases by a factor of 2.5 as the implant temperature inc
Publikováno v:
Journal of The Electrochemical Society. 141:2245-2249
The diffusion of Si was studied using secondary ion mass spectroscopy and transmission electron microscopy after implantation into GaAs at energies ranging from 20 to 200 keV and at doses ranging from 1 • 10 ~3 to 1 • 10 ~4 cm -2 followed by furn
Publikováno v:
AIDS patient care and STDs. 24(12)
Performing rapid HIV testing in nontraditional clinical settings such as dental clinics is a potential method for targeting high-risk individuals who may not otherwise access health care settings that offer HIV testing. In March 2008, Harlem Hospital
Publikováno v:
Applied Physics Letters. 66:355-357
Diffusion of ion implanted Be in AlxGa1−xAs was studied as a function of Al concentration and annealing temperature and was compared to diffusion in GaAs. The behavior of Be in AlxGa1−xAs is similar to that in GaAs, even showing the anomalous beh
Publikováno v:
Applied Physics Letters. 64:3302-3304
Implantation damage is believed to play a significant role in dopant diffusion. Described here is an attempt to modify the point defect damage profile of a 40 keV, 29Si implant in GaAs by chemically etching away the top 100 A of the sample after impl
Publikováno v:
Applied Physics Letters. 62:501-503
Time‐resolved reflectivity has been used to measure the rate of solid phase epitaxial regrowth (SPER) in situ during annealing of strained Si0.88Ge0.12 epilayers on Si preamorphized by the implantation of Si. The SPER velocities were measured over
Autor:
David C. Brady, Robert Y.S. Huang, Minseok Oh, Yi Ma, Cynthia C. Lee, Stefanie Chaplin, Binh Nguyenphiu
Publikováno v:
MRS Proceedings. 470
Due to polycrystallization, the emissivity of amorphous silicon is known to vary during annealing at temperatures above 500°C. This transition from α-Si to poly-Si usually occurs during the ramp and the beginning of steady stages of the rapid therm