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GaN Schottky barrier photodiode on Si (1 1 1) with low-temperature-grown cap layer
(Elsevier B.V., 2009-07)
In this work, GaN films were grown on three-inch silicon substrates by plasma-assisted molecular beam epitaxy (PAMBE) with AlN (about 200 nm) as the buffer layer. Finally, a thin AlN cap layer (50 nm) was grown on the GaN ...
Electronic properties of orthorhombic LiGaS2 and LiGaSe 2
(Springer Berlin/Heidelberg, 2009)
We report theoretical calculations of the band structure and density of states for orthorhombic LiGaS2 (LGS) and LiGaSe2 (LGSe). These calculations are based on the full potential linear augmented plane wave (FP-LAPW) ...
FP-APW + lo calculations of the elastic properties in zinc-blende III-P compounds under pressure effects
(Elsevier B.V., 2009-04)
The effect of high-pressures on the structural and elastic properties of XP zinc-blende compounds, with X = B, Al, Ga and In, has been investigated using the full-potential augmented plane wave plus local orbitals method ...
A 1.5 V, 0.85-13.35 GHZ MMIC low noise amplifier design using optimization technique
(Institution of Electronics and Telecommunication Engineers (IETE), 2009-11-01)
This paper describes how a broadband, 1.5 V, 0.85-13.35 GHz low noise amplifier in 0.15 μm 85 GHz PHEMT process is synthesized to simultaneously meet multiple design specifications such as bandwidth, noise figure, power ...
Low-power H.264 video compression architectures for mobile communication
(Institute of Electrical and Electronics Engineers (IEEE), 2009-09)
This paper presents a method to reduce the computation and memory access for variable block size motion estimation (ME) using pixel truncation. Previous work has focused on implementing pixel truncation using a fixed-blocksize ...
Nano-silver microcavity enhanced UV GaN light emitter
(Inderscience Enterprises Limited, 2009)
We report results of measurements that help to clarify the role of silver in the reflection of UV emission light from GaN. A GaN as an active layer was sandwiched between two silver metal reflectors. GaN layer on sapphire ...
Structural, elastic, electronic, optical and thermal properties of c-SiGe2N4
(Springer Verlag, 2009-09)
We have investigated the structural, elastic, electronic, optical and thermal properties of c-SiGe2N4 by using the ultrasoft pseudopotential density functional method within the generalized gradient approximation. The ...
High sensitivity fiber Bragg grating pressure sensor using thin metal diaphragm
(Institute of Electrical and Elctronics Engineering (IEEE), 2009-12)
A high sensitivity pressure sensor design without a polymer transducer is demonstrated in this paper. The sensor uses a thin metal diaphragm as a pressure transducer instead of a polymer. The sensor is tested to a maximum ...
Facial features for template matching based face recognition
(Science Publications, 2009)
Problem statement: Template matching had been a conventional method for object detection especially facial features detection at the early stage of face recognition research. The appearance of moustache and beard had ...
Improved variational many-body wave function in light nuclei
(American Physical Society, 2009-09-10)
We propose and implement a simple method for improving the variational wave function of a many-body system. We have obtained a significant improvement in the binding energies, wave functions, and variance for the light ...