Two-photon excitation techniques used in fabricating lines defects were done on a light emitting diode chip. Simultaneous detection of a quenched wide-gap semiconductor crystal has been observed using single- and two-...
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Nowadays integration and interoperability studies and research have become hot topics in business field, providing technologies which enable Enterprise Application Integration (EAI). In this sense, Enterprise Service ...
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With the evolution and significant growth in wireless technology and the development of mobile commerce, businesses can achieve superior performance through the implementation of platforms for mobile payment. However,...
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ISBN:
(纸本)9780769542454
With the evolution and significant growth in wireless technology and the development of mobile commerce, businesses can achieve superior performance through the implementation of platforms for mobile payment. However, there are several platforms for mobile payment to choose from which makes the selection of an appropriate platform for specific applications a challenging task. In response to this challenge, the most common mobile payment platforms recorded in the literature have been reviewed. This paper presents the result of this review describing the advantages and disadvantages of each system and offers ranking of the technologies considered. MCDM method is used for assessing and comparing different platforms from technical and business points of view. The results indicate that SIM-based application with binary SMS offers the best solution compared to other alternatives.
Considering the significant growth in mobile phone use by customers and its high accessibility, this device can be considered as the most suitable tool in payment category. To implement a mobile payment service, there...
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Reconfigurability in an antenna system is a desired characteristic that has been the focus of much interest in recent years. This paper describes the concept of reconfigurable antenna and how advances in switch techno...
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ISBN:
(纸本)9781934142127
Reconfigurability in an antenna system is a desired characteristic that has been the focus of much interest in recent years. This paper describes the concept of reconfigurable antenna and how advances in switch technology have made these designs realizable. Complete design of the radiating patches, diode switches and biasing circuitry are also discussed. The structure of modified corporate-feed network is used to realize the array antenna consisting of 16 elements of rectangular patches at 2.3 GHz. The antenna patches through deployment of 4 PIN diodes switches at the feeding lines enabled the radiation pattern to be altered with respect to the beam shaping characteristics. While the planar arrays design making it more feasible for other antenna performances to be enhanced. The resistance for OFF and ON states of PIN diodes could strongly affect the performance of antenna. Hence, in order to improve the performance of the antenna, aperture coupled configuration is used to boost the antenna gain and directivity. The slot's geometry of aperture coupled antenna is stressed out as it determines the amount of coupling to the patches from feeding lines of the antenna. It is shown through simulations and measurements that 4 types of radiation pattern of the antenna can be well reconfigured by turning the diode switches on and off. The gain, directivity, beamwidth, efficiency and return loss are also changed. The proposed antenna, aperture coupled microstrip antenna array with quadratic slots, Q-ACMAA strengthen the level of coupling to the patches from feeding line with almost 50% of efficiency. Good agreement between the simulations and measurements were obtained. These results extend the validity of the analysis and will be useful for applications involving this type of reconfigurable antenna.
Test Oracle is a mechanism to determine if an application executed correctly. In addition, it may be difficult to verify logical software modules due to the complexity of their structures. In this paper, an attempt ha...
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Decision-making structures are important building blocks in most of the software;however, it may be difficult to verify them because there are various input conditions and several paths causing them to behave differen...
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Feature selection has become very vital aspect in musical instruments sounds for handling the problem of 'curse of dimensionality'. Various feature selection techniques have been applied in this domain focusin...
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In this work we present a technique to extract the heart contours from noisy echocardiograph images. Our technique is based on improving the image before applying contours detection to reduce heavy noise and get bette...
In this work we present a technique to extract the heart contours from noisy echocardiograph images. Our technique is based on improving the image before applying contours detection to reduce heavy noise and get better image quality. To perform that, we combine many pre-processing techniques (filtering, morphological operations, and contrast adjustment) to avoid unclear edges and enhance low contrast of echocardiograph images, after implementing these techniques we can get legible detection for heart boundaries and valves movement by traditional edge detection methods.
This paper tackled the issues of different learning preferences for computerscience and Mechatronics students in a large class environment by using different active learning methodologies. Apart from implementing act...
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