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As research on developing assertion languages for the AMS domain gains in momentum, it is increasingly being felt that extensions of existing assertion languages like PSL and SVA into the AMS domain are not adequate for expressing the analog design intent. This is largely due to the intricacy of the analog behavioral intent which cannot be captured purely in terms of logic. In this paper we show that...
In this paper, the core temperature of a 540 MWe Pressurized Heavy Water Reactor (PHWR) has been estimated from the measured temperature of the coolant using system identification techniques. The formulation is done considering fractional order (FO) dynamics for the sensor noise (i.e. 1/fα noise) and the conventional white noise in measurement. Performance study with different least square based linear...
In this paper, a theoretical model is proposed to estimate the resonant frequency of a circular split ring resonator (C-SRR) in which the outer ring is rotated. The variation in the resonant frequency with angle of rotation of the SRR is theoretically calculated. The computed values are then compared with the simulated results using an electromagnetic simulator. Also, the magnetic polarizability for...
While cellular and WLAN (Wireless Local Area Networks) at low frequencies (1-5 GHz) constantly struggle with the quasi-saturation of spectrum, the EHF band (30-300 GHz) has huge swathes of band available at no cost. The recently allocated 71-76 GHz and 81-86 GHz bands provide an opportunity for Line Of Sight (LOS) links for directional point-to-point ”last mile” links. This work focuses on the design...
We have discovered that processors can experience a super-linear increase in detected unrecoverable errors (DUE) when the write-back L2 cache is doubled in size. This paper explains how an increase in the cache tag's Architectural Vulnerability Factor or AVF caused such a super-linear increase in the DUE rate. AVF expresses the fraction of faults that become user-visible errors. Our hypothesis is...
Friis transmission equation combined with Finite Difference in Time Domain (FDTD) method has been used to carry out investigation on Specific Absorption Rate (SAR) inside the human head model exposed to a 100 Watt GSM Base Station Antenna (BSA) at GSM-900 band. Maximum local SAR (MLSAR) has been calculated at 925 MHz, keeping distance between head and BSA in the range of 0.5 m to 5.0 m. The human...
This paper explores the effect of profile based method for classification of Wikipedia XML documents. Our approach builds two profiles, exploiting the whole content, Initial Descriptions and links in the Wikipedia documents. For building profiles we use the negative category information which has shown to perform well for classifying unstructured texts. The performance of Cosine and Fractional Similarity...
We propose algorithms to extract groups of meaningful image level lines using Helmholtz perception principle. In this paper, the meaningfulness refers to the segmentation of circular and rectangular shapes in an image. We propose an objective assessment of meaningfulness of an image level line when the level line takes the shape of circle or rectangular segment. We have shown that a logical threshold...
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