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1.
2.
Bose Bimal K. Szczesny Paul M. Steigerwald Robert L. 《Industry Applications, IEEE Transactions on》1985,(5):1182-1191
Microcomputer-based control of a residential photovoltaic power conditioning system is described. The microcomputer is responsible for array current feedback control, maximum power tracking control, array safe zone steering control, phase-locked reference wave synthesis, sequencing control, and some diagnostics. The control functions are implemented using Intel 8751 single-chip microcomputer-based hardware and software. The controller has been tested in the laboratory with the prototype power conditioner and shows excellent performance. 相似文献
3.
Zhiping Lin Xu L. Bose N.K. 《IEEE transactions on circuits and systems. I, Regular papers》2008,55(1):445-461
4.
GaTe is a III–VI semiconductor which has layered structure with large anisotropy in electrical properties. Growth of single
crystals by the Bridgman technique permitted the measurement of thermoelectric power in orthogonal directions from which the
anisotropy of hole effective masses were determined for the first time. From resistivity and Hall effect measurements the
carrier activation energies and scattering mechanisms between 10–300°K were found.
Study of the temperature dependence of conductivity revealed a variety of conduction mechanisms including weak localization
below 20°K, hopping conduction between 20–50 K and band conduction in and across the layer planes atT>70 K. Weak localization was confirmed through observation of negative magnetoresistance. TheI–V characteristics showed quantized behaviour due to tunneling across potential barriers, which may be due to stacking faults
between layer planes as observed by TEM studies. 相似文献
5.
Tamal Bose M. -Q. Chen David A. Trautman 《Circuits, Systems, and Signal Processing》1994,13(5):601-614
A special class of complex biquad digital filters called orthogonal filters are investigated for stability under two's complement
quantization. A sufficient condition is derived for the asymptotic stability of the nonlinear filter. Bounds on the possible
limit cycles are also obtained. Using these bounds, any given filter can be tested for stability. The stability triangle is
then scanned using a dense grid, and each point on the grid is tested for stability/limit cycles. By this method, the stability
region given by the sufficient condition is extended. Regions within the linear stability triangle where various types of
limit cycles are possible are also identified. 相似文献
6.
7.
Two-dimensional (2-D) state-space digital filters are investigated for stability with and without quantization. A sufficient condition is obtained for the stability of the linear Fornasini-Marchesini (1976) state-space model. The same model is then studied for stability when implemented using two's complement truncation quantization, and a sufficient condition for asymptotic stability of the nonlinear filter is obtained. In the process, a theorem is proved which gives a sufficient condition for the stability of a one-dimensional (1-D) state-space digital filter under the same type of quantization 相似文献
8.
A polyhedron P is castable if its boundary can be partitioned by a plane into two polyhedral terrains. Castable polyhedra can be manufactured
easily using two cast parts, where each cast part can be removed from the object without breaking the cast part or the object.
If we assume that the cast parts are each removed by a single translation, it is shown that for a simple polyhedron with n vertices, castability can be decided in time and linear space using a simple algorithm. A more complicated algorithm solves the problem in time and space, for any fixed ε > 0. In the case where the cast parts are to be removed in opposite directions, a simple O(n
2
)-time algorithm is presented. Finally, if the object is a convex polyhedron and the cast parts are to be removed in opposite
directions, a simple algorithm is presented.
Received June 1, 1994; revised May 25, 1995. 相似文献
9.
The impact of digital technology in biometrics is much more efficient at interpreting data than humans, which results in completely replacement of manual identification procedures in forensic science. Because the single modality‐based biometric frameworks limit performance in terms of accuracy and anti‐spoofing capabilities due to the presence of low quality data, therefore, information fusion of more than one biometric characteristic in pursuit of high recognition results can be beneficial. In this article, we present a multimodal biometric system based on information fusion of palm print and finger knuckle traits, which are least associated to any criminal investigation as evidence yet. The proposed multimodal biometric system might be useful to identify the suspects in case of physical beating or kidnapping and establish supportive scientific evidences, when no fingerprint or face information is present in photographs. The first step in our work is data preprocessing, in which region of interest of palm and finger knuckle images have been extracted. To minimize nonuniform illumination effects, we first normalize the detected circular palm or finger knuckle and then apply line ordinal pattern (LOP)‐based encoding scheme for texture enrichment. The nondecimated quaternion wavelet provides denser feature representation at multiple scales and orientations when extracted over proposed LOP encoding and increases the discrimination power of line and ridge features. To best of our knowledge, this first attempt is a combination of backtracking search algorithm and 2D2LDA has been employed to select the dominant palm and knuckle features for classification. The classifiers output for two modalities are combined at unsupervised rank level fusion rule through Borda count method, which shows an increase in performance in terms of recognition and verification, that is, 100% (correct recognition rate), 0.26% (equal error rate), 3.52 (discriminative index), and 1,262 m (speed). 相似文献
10.
Biswas Uttara Rakshit Jayanta Kumar Das Joyashree Bharti Gaurav Kumar Suthar Bhuvneshwer Amphawan Angela Najjar Monia 《SILICON》2021,13(3):885-892
Silicon - In the present report, a photonic crystal based micro-ring resonator (MRR) structure is proposed which is very compact in size and has very fast response and is employed for temperature... 相似文献