This paper presents Koch fractal aperture-coupled patch antennas operating in industrial scientific and medical band at 60 GHz (57 GHz to 64 GHz), for on-chip application. This work is the continuation of the developm...
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This paper presents Koch fractal aperture-coupled patch antennas operating in industrial scientific and medical band at 60 GHz (57 GHz to 64 GHz), for on-chip application. This work is the continuation of the developm...
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ISBN:
(纸本)9781538673348;9781538673331
This paper presents Koch fractal aperture-coupled patch antennas operating in industrial scientific and medical band at 60 GHz (57 GHz to 64 GHz), for on-chip application. This work is the continuation of the development of aperture-coupled antennas with aperture and patch element built in 2 μm-thick aluminum lying on two layers of silicon with a height of 200 μm. The use of Koch fractal allowed the development of aperture-coupled antennas of greater perimeter with more metal in the patch elements, which promoted an increase in the gain. The observed gain for Koch fractal level 2 was of 10.55 dBi, with a bandwidth of 7.23 GHz, covering the ISM 60 GHz Band, and an increase of less than 10% in total patch dimension. For Koch fractal levels 0 (square), a polarization close to circular was achieved, with an axial ratio less than 6 at resonant frequencies.
The purpose of this paper is to present two new noise reduction filters techniques in the CT image space, in order to provide a better quality to the images acquired with low radiation exposure. For the noise reductio...
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This paper presents an approach for Web service (WS) composition that enables the automatic adjustment of the composition at run-time to deal with WS execution flaws, e.g., WS unavailability, failure to execute proper...
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ISBN:
(纸本)9781509006809
This paper presents an approach for Web service (WS) composition that enables the automatic adjustment of the composition at run-time to deal with WS execution flaws, e.g., WS unavailability, failure to execute properly or to produce desired results. The WS composition problem is converted into a nondeterministic planning problem which, by its turn, is mapped to SAT. Afterwards, a SAT solver obtains all the possible WS compositions with a maximum length N, which are then fused into a contingency strategy (CS) according to compatibility criteria. Such strategy enables the process execution engine to readily choose the most suitable WS composition to enact, and switch to an alternative composition with minimum adaptation cost in case of any WS execution flaw.
作者：
Gava, Marisa Carla VoigtRosario, Cristian Derik PaulinoFilho, Antonio GregorioDe Araújo, Sidnei Alves
Industrial Engineering Post-Graduation Program Av. Francisco Matarazzo 612 Água Branca São Paulo SP05001-100 Brazil
Departament of Informatics Computer Science Undergraduation Course Rua Vergueiro 235/249 Liberdade São Paulo SP01504-001 Brazil
Informatics and Knowledge Management Post-Graduation Program Av. Francisco Matarazzo 612 Água Branca São Paulo SP05001-100 Brazil
In this paper we proposed an approach based on genetic algorithm (GA) and digital image processing (DIP) to deal with the problem of cutting identical items (pieces) with irregular shapes in metal plates (objects). Th...
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This paper conducts a Systematic Mapping in order to outline a current overview of digital serious games applications' evaluations for game-based learning purposes on computerscience higher education. The search ...
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ISBN:
(纸本)9781467388443
This paper conducts a Systematic Mapping in order to outline a current overview of digital serious games applications' evaluations for game-based learning purposes on computerscience higher education. The search was performed on informatics' area electronic databases, resulting in 2,174 publications initially found. After sorting through the application of inclusion and exclusion criteria, remained 59. In the final phase, after thorough reading the extracted publications, has come up to 10 papers. The results reveal different practical approaches of digital serious games' applications evaluations that assess its different aspects' influence on students.
One way to provide more flexibility for computer networks is through software defined networks (SDN). This paradigm supports network applications, whose behavior is defined by the controllers. However, management appl...
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One way to provide more flexibility for computer networks is through software defined networks (SDN). This paradigm supports network applications, whose behavior is defined by the controllers. However, management applications SDN is a solution under explored, such applications are scattered in various repositories codes on-line, or are still embedded in the factory switches. This article proposes a model of organization and distribution of applications, called SDNrepo, may specify and model all the way that applications must do to reach the end user, in this case the controllers.
programmability is one of the key factors on software defined networks (SDN), once it allows to decouple between data plan and control plan. However, in such context, managing several applications' inputs and outp...
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ISBN:
(纸本)9781479909117
programmability is one of the key factors on software defined networks (SDN), once it allows to decouple between data plan and control plan. However, in such context, managing several applications' inputs and outputs is a little explored task on controllers field, which are not in a controlled and organized environment. This article proposes a method to make SDN applications to reach the administrator, allow him to manage his use in the network. This proposal is validated through performance tests in the repository, which stores the applications, along with developed modules to help its management and control, making the organization and coordination method safe, efficient and adjustable to any controller on software-defined network.
Software complexity has increased considerably over recent years, needing special target architectures as NoC-based MPSoCs to fulfill the heavy storage, communication and computation requirements. The design of these ...
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