We identified the charge carrier compensation mechanism in Te-doped GaAs with atomically resolved scanning tunneling microscopy. Three types of defects were found: tellurium donors (TeAs), Ga vacancies (VGa), and Ga vacancy–donor complexes (VGa– TeAs). We show quantitatively that the compensation in Te-doped bulk GaAs is exclusively caused by vacancy– donor complexes in contrast to Si-doped GaA...

Stereopsis, the perception of depth of an object within a scene viewed from two different points is often modelled in an effort to generate three-dimensional information from a dual image capture. This paper presents an FPGA based hardware prototype of a stereoscopic capture system using a pair of CMOS image sensors. Data buffering and pipelining methods are employed using FPGA control of embed...

This Paper presents the design of a wideband variable gain amplifier (VGA) using 0.18 μm standard CMOS technology. The proposed VGA realizes wideband flat gain using wideband flat negative capacitance. It achieves a 3 dB gain bandwidth of 1 GHz with a maximum gain of 23 dB. Also, it shows P1 dB of −33 to −6 dBm over the gain range of −28 to 23 dB. The overall current consumption is 5.5 mA under...

A. L. Williams, '* W. P. Alford, E. Brash, ' t B. A. Brown, S. Burzynski, '~ H. T. Fortune, O. Hausser, R. Helmer, R. Henderson, P. P. Hui, K. P. Jackson, B. Larson, M. G. McKinzie, D. A. Smith, A. Trudel, 3 5 and M. Vetterli University of Pennsylvania, Philadelphia, Pennsylvania Ig10$ University of Western Ontario, London, Ontario, Canada VGA ZK7 Simon Eraser University, Burnaby, British Colum...

OBJECTIVE To verify the correlation between visual gait analysis (VGA) by the Edinburgh visual gait score (EVGS) and functional aspects using the Timed Up and Go Test (TUG) and Gross Motor Function Classification System (GMFCS) in individuals with cerebral palsy (CP). METHODS Retrospective cross sectional study of 35 patients with CP. The mean age 12.61 years old, 94.3% were spastic; 34.4% he...

We consider the problem of computing a Gaussian approximation to posterior distribution parameter given N observations and prior. Owing need processing large sample sizes N, variety approximate tractable methods revolving around online learning have flourished over past decades. In present work, we propose use variational inference compute through single pass data. Our algorithm is recursive ve...

Detailed mutational analysis examines the roles of individual residues of the Vga(A) linker in determining the antibiotic resistance phenotype. It defines a narrowed region of residues 212 to 220 whose composition determines the resistance specificity to lincosamides, pleuromutilins, and/or streptogramins A. From the analogy with the recently described function of the homologous ABC-F protein E...