This paper addresses the performance enhancement of speech processing applications like speech recognition, speaker identification and language identification in the presence of additive noise with help of proposed ad...
详细信息
Everybody on internet wants to have faster access of data files from the servers. Howsoever servers are very fast but when it is the question of bulk accessing then we need smarter ways to access data files from these...
详细信息
Photospheric bright points (BPs) are a small-scale feature on the solar surface. Studying their characteristics may reveal the problems on coronal hearting, local dynamo theory and relation of magnetic field. In the p...
详细信息
ISBN:
(纸本)9781467327626
Photospheric bright points (BPs) are a small-scale feature on the solar surface. Studying their characteristics may reveal the problems on coronal hearting, local dynamo theory and relation of magnetic field. In the present paper, an automatic algorithm, employing Laplacian and morphological dilation technique, is utilized to identify the BPs. Two data sets are derived from the Dutch Open Telescope (DOT) on July 19 2006 and September 24 2006. Their size distribution of BPs in the two data sets are investigated and analyzed. The size distributions of PBPs are consistent with log-normal statistics. Both peak distributions occur at about 230km.
One of the leading causes of blindness among the elderly is age related macular degeneration (AMD), which can be classified as neovascular (wet) and non-neovascular (dry). Wet AMD, the more severe variety, is characte...
详细信息
ISBN:
(纸本)9781849197977
One of the leading causes of blindness among the elderly is age related macular degeneration (AMD), which can be classified as neovascular (wet) and non-neovascular (dry). Wet AMD, the more severe variety, is characterized by the presence of haemorrhages surrounding the macula, as well as the presence of drusen, also found in dry AMD. In this note, semi- automated attempts at detecting the haemorrhages as well as drusen, with the help of Cellular Neural Network (CNN) templates are presented for 20 images. The method is found to hold promise for a longitudinal study of the degeneration that occurs in AMD.
In this paper, we demonstrate 253% improvement in the off-state breakdown voltage (BV) of the lattice-matched In 0.17 Al 0.83 N/GaN high-electron-mobility transistors (HEMTs) by using a new Schottky-Source technology....
详细信息
In this paper, we demonstrate 253% improvement in the off-state breakdown voltage (BV) of the lattice-matched In 0.17 Al 0.83 N/GaN high-electron-mobility transistors (HEMTs) by using a new Schottky-Source technology. Based on this concept, the Schottky-Source (SS) InAlN/GaN HEMTs are proposed. The SS HEMTs with a L GD of 15 μm showed a three-terminal BV of 650 V, while conventional InAlN/GaN HEMTs of the same geometry showed a maximum BV of 184 V. Without using any field-plate the result measured in the proposed device is the highest BV ever achieved on InAlN/GaN HEMTs. The corresponding specific on-resistance (R sp, on ) is as low as 3.4 mΩ·cm 2 . A BV of 118 V was also obtained in an SS InAlN/GaN HEMTs with L GD =1 μm, which is the highest BV in GaN-based HEMTs featuring such a short L GD with GaN buffer.
The Solar Granulation is an ubiquitous structure in the quiet *** brighter features called "Photospheric Bright Points(PBPs)" are found within inter-granules in G-band images *** are the small-scale feature ...
详细信息
ISBN:
(纸本)9781479900305
The Solar Granulation is an ubiquitous structure in the quiet *** brighter features called "Photospheric Bright Points(PBPs)" are found within inter-granules in G-band images *** are the small-scale feature on the solar *** their characteristics may reveal the significant problems such as coronal hearting,local dynamo theory and the relation of magnetic *** the presented paper,we utilized Laplacian and morphological dilation(LMD) technique to detect and extract PBPs within inter-granular lanes.A data set has been taken with the Dutch Open Telescope(DOT) on July 2, *** was employed to analyze the geometrical feature of *** statistical distributions of PBPs were obtained by the proposed *** diameter distribution of PBPs is consistent with lognormal *** peak diameter occurs at about *** histogram of geometrical features is derived from the PBPs *** distribution of eccentricity indicates that approximately 50%PBPs have a near circular,the average eccentricity occurs at *** distribution accords with an Exponential fit.
In this paper, we developed an extensible HL7 middleware to exchange the heterogeneous healthcare information. A semantic structure mapping, which can be configured dynamically, is presented to guide the data conversi...
详细信息
Exact single pattern string matching is a fundamental problem in computerscience. To date, the performance of existing string matching algorithms for very short patterns is poor. In this article, based on the most ba...
详细信息
ISBN:
(纸本)9781849196413
Exact single pattern string matching is a fundamental problem in computerscience. To date, the performance of existing string matching algorithms for very short patterns is poor. In this article, based on the most basic exact single pattern string matching algorithm-BF, we presented a serial improved algorithms named HBF by introducing the q-grams method, the loop unrolling method, and modifying the smallest processing unit from byte to integer. Experimental results indicated that HBF is obviously faster than known algorithms for very short patterns on our platform. Meanwhile, the pre-processing phase of HBF just need constant time and space, the worst and the best time complexity are linear and 0(n/w), separately, which w is the number of characters involved in an integer.
String matching is a basic problem of computerscience and it has been widely used in many important application fields. To date, QF is one of the fastest exact single pattern string matching algorithms for long patte...
详细信息
ISBN:
(纸本)9781849196413
String matching is a basic problem of computerscience and it has been widely used in many important application fields. To date, QF is one of the fastest exact single pattern string matching algorithms for long patterns. In this paper, we improved the QF algorithm by introducing the greedy jump method and gained a serial of exact single pattern string matching algorithms named Greedy QF. Experimental results indicated that Greedy QF is faster than QF in most of case and Greedy QF is faster than other known algorithms in many cases for long patterns on our platform.
In this we paper presents an approach for CPU scheduling when considering the multiple criteria with the help on Multi-objective optimization. Scheduling in operating systems plays a significant role on performance of...
详细信息
暂无评论