A linear time heuristic for improving network partitions. 10] A. G. Hooman. The dynamic locking heuristic { a new graph partitioning algorithm. In Proc. 14 Krishnamurthy gain vector; this reopens the question of interpreting such seminal works in the literature as 16] and 13], whose studies used random bucket selection. Organizing the gain buckets as LIFO (Last-In-First-Out) stacks leads to a 3...

This paper presents an improved linearity variable-gain amplifier (VGA) in 0.18-µm CMOS technology. The lineari­ty improvement is resulted from employing a new combinational technique, which utilizes third-order-intermodulation (IM3) cancellation mechanism using second-order-intermodul­ation (­IM2) injection, and intermodulation distortion (IMD) sinking techniques. The proposed VGA gain cell co...

despite providing robustness, high-gain observers impose a peaking phenomenon, which may cause instability, on the system states. in this paper, an adaptive saturation is proposed to attenuate the undesirable mentioned phenomenon in high-gain observers. a real-valued and differentiable sigmoid function is considered as the saturating element whose parameters (height and slope) are adaptively tu...

in order to implement an integrated optical quantum circuit, designing waveguides based on the quantum box is of prime importance. to do this we have investigated optical waveguide both with and without optical pumping. the rate of absorption and emission using an array of algaas/gaas quantum box core/shell structure in the optical waveguide with various pumping intensities has computed. by con...

association of genetic polymorphism in the calpastatin (cast) gene with average daily gain was examined in iranian purebred kurdi sheep. the genotypes for cast were determined by the pcr-sscp method. blood samples were collected from 84 purebred kurdi sheep belonging to the kurdi breeding station located in the khorasan province, north-east of iran. extraction of genomic dna was based on the gu...

objective: evaluating the effect of vegetable oil, as a supplement to breast milk in increase the weight gaining of vlbw neonates. materials and methods: in this single blind; randomized clinical trials , in nicu of vali-asr hospital, tehran university of medical sciences, 2005-2006;a total of 48 vlbw neonates referred & admitted to nicu, who did not have any major gi (especially nec), respirat...

In this work a low power, low voltage and high gain operational amplifier is proposed. For this purpose a negative resistance structure is used in parallel with output to improve the achievable gain. Because of using self cascode transistors in the output, the proposed structure remains approximately constant in a relatively large output voltage swing causing an invariable gain. To evaluate the...