Current Issue : April - June Volume : 2017 Issue Number : 2 Articles : 5 Articles
This paper outlines a new polarization reconfigurable EBG (Electromagnetic Band\nGap) antenna in the 60 GHz millimeter waves band. The proposed hybrid antenna is\ncomposed of a multilayer pyramidal DRA (Dielectric Resonator Antenna) exciting\nsource covered with a FSS (frequency Selective Surface) superstrate. The device can\nswitch between circular and linear polarization by a simple 45Ã?Å¡ mechanical rotation\nof the pyramidal DRA. This structure has the advantage that it maintained stable\nbandwidth, gain, efficiency and radiation properties when switching between the two\nconfigurations of circular and linear polarization....
The paper deals with the use of high-performance computing\nsystems with the parallel-operation architecture in intelligent medical\nsystems, such as medical robotic systems, based on a computer vision\nsystem, is an automatic control system with the strict requirements, such as\nhigh reliability, accuracy and speed of performance. It shows the basic\nblock-diagram of an automatic control system based on a computer vision\nsystem. The author considers the possibility of using a reconfigurable\ncomputing environment in such systems. The design principles of the\nreconfigurable computing environment allows to improve a reliability,\naccuracy and performance of whole system many times. The article\ncontains the brief overview and the theory of the research, demonstrates\nthe use of reconfigurable computing environments for the image preprocessing,\nnamely morphological image processing operations. Present\nresults of the successful simulation of the reconfigurable computing\nenvironment and implementation of the morphological image processing\noperations on the test image in the MATLAB Simulink....
One of the key future challenges for reconfigurable computing is to enable higher design productivity and a more easy way to use\nreconfigurable computing systems for users that are unfamiliar with the underlying concepts. One way of doing this is to provide\nstandardization and abstraction, usually supported and enforced by an operating system.This article gives historical review and a\nsummary on ideas and key concepts to include reconfigurable computing aspects in operating systems.The article also presents an\noverview on published and available operating systems targeting the area of reconfigurable computing. The purpose of this article\nis to identify and summarize common patterns among those systems that can be seen as de facto standard. Furthermore, open\nproblems, not covered by these already available systems, are identified....
A low power and low noise reconfigurable analog front-end (AFE) system on a chip\n(SoC) for biosignal acquisition is presented. The presented AFE can be reconfigured for use in\nelectropotential, bioimpedance, electrochemical, and photoelectrical modes. The advanced healthcare\nservices based on multiparameter physiological biosignals can be easily implemented with these\nmultimodal and highly reconfigurable features of the proposed system. The reconfigurable gain and\ninput referred noise of the core instrumentation amplifier block are 25 dB to 52 dB, and 1 �¼VRMS,\nrespectively. The power consumption of the analog blocks in one readout channel is less than 52 �¼W.\nThe reconfigurable capability among various modes of applications including electrocardiogram,\nblood glucose concentration, respiration, and photoplethysmography are shown experimentally....
In recent years, cloud computing technology has experienced continuous development and improvement,\nand has gradually expanded to the education sector. First, this paper will introduce the background knowledge of the\ncurrent virtual cloud laboratory; by comparing the advantages and disadvantages between traditional laboratory and\nvirtual cloud laboratory, and comparing the application, advantages and disadvantages, and development trend of\nOpenStack technology and VMWare technology in safety, performance, design, function, use case, and value of\nvirtual cloud laboratory, this paper concludes that application based on OpenStack virtual cloud laboratory in\nuniversities and research institutes and other departments is essential....
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