Showing papers by "Iran University of Science and Technology published in 1994"
28 citations
TL;DR: This paper presents a strategy for determining dynamic load carrying capacity (DLCC) subject to both accuracy and actuator constraints where a series of cubical bounds centred at the desired trajectory is used in the end-effector oscillation constaints while a typical DC motor speed-torque characteristics curve isUsed in the actuators constraints.
26 citations
TL;DR: In this article, a high-speed current-mode sense amplifier for dynamic RAMs has been proposed, which has no dependency on bit-line capacitances and average input currents.
Abstract: The authors have designed a novel high-speed current-mode sense amplifier for dynamic RAMs. The circuitry has no dependency on bit-line capacitances and average input currents. It has been frequently reported that the sensing speed is affected by the degree of input current difference, but the proposed circuitry has shown no considerable changes in its sensing speed when the input current differences are changed.
12 citations
TL;DR: An efficient algorithm is developed that reduces the number of cycles to be considered as candidates for being the elements of a minimal basis and makes practical use of the Greedy algorithm feasible.
Abstract: An efficient algorithm is developed for the formation of a minimal cycle basis of a graph. This method reduces the number of cycles to be considered as candidates for being the elements of a minimal basis and makes practical use of the Greedy algorithm feasible. A comparison is made between the existing methods and the present algorithm. A counter-example is presented for Kaveh's algorithm from planar graphs.
10 citations
22 Aug 1994
TL;DR: A new edge detector, based on combining separable median filtering and morphological operations, is introduced and the performance of the proposed edge detector is compared with some other edge detectors.
Abstract: Real-time edge-based image detection is an important task in many image analysis operations. Morphological-based edge detection operators have been shown to be effective as well as being efficiently implementable in many image processing applications. In this paper, the concept behind the development of various morphological edge detection operators is briefly described. A new edge detector, based on combining separable median filtering and morphological operations, is introduced. The performance of the proposed edge detector is compared with some other edge detectors. A low-cost methodology for implementing the morphological edge detectors is presented. >
8 citations
TL;DR: In this paper, the real-space correlation function, d(r) was used to analyze three samples of amorphous phosphorus and found a sharp peak at 2.21 A corresponding to the PP-bondlength and a second peak at 3.45 A defining a mean bondangle of 102.6° with a spread of 4°.
Abstract: Neutron diffraction studies have been made for three samples of amorphous phosphorus. The structure factor data have been transformed to give the real-space correlation function, d(r). All samples were found to contain a small proportion of hydrogen and corrections were made before the data was analysed. The violet form was found to give a typical amorphous pattern which had a sharp main diffraction peak at 1.1 A−1. On heattreating the sample, this peak increased in intensity but the rest of the pattern was unaltered. The red-brown form exhibited some Bragg peaks, but the overall shape of the pattern was similar to that of the violet material. The d(r) function exhibits a sharp peak at 2.21 A corresponding to the PP-bondlength and a second peak at 3.45 A defining a mean bondangle of 102.6° with a spread of 4°. At higher values there is a distinct three-peak characteristic which is not reproduced in current models based on a three-bonded CRN scheme.
4 citations
29 Jun 1994
TL;DR: In this article, the problem of reduced-order filtering with colored noise was considered for both continuous and discrete-time systems and the results were compared with the H/sup /spl infin/Ω( √ √ log √ n)-reduced-order case where the measurement noise and process noise have bounded energies.
Abstract: In this paper we consider the problem of reduced-order filtering with colored noise for both continuous and discrete-time systems. The results are compared with the H/sup /spl infin// reduced-order case where the measurement noise and process noise have bounded energies. It is shown that if the spectral knowledge of the measurement noise is not available, the reduced-order H/sup /spl infin// result might be considered as an option.
1 citations
Proceedings Article•
01 Jan 1994TL;DR: In this article, the problem of reduced-order filtering with colored noise was considered for both continuous and discrete-time systems and the results were compared with the H/sup /spl infin/Ω( √ √ log √ n)-reduced-order case where the measurement noise and process noise have bounded energies.
Abstract: In this paper we consider the problem of reduced-order filtering with colored noise for both continuous and discrete-time systems. The results are compared with the H/sup /spl infin// reduced-order case where the measurement noise and process noise have bounded energies. It is shown that if the spectral knowledge of the measurement noise is not available, the reduced-order H/sup /spl infin// result might be considered as an option.