Figure 2: Average DICE scores, across all test subjects, versus threshold for the different classifiers (NN top; RF bottom) colours given in text. Figure 3: Best DICE scores for each subject in the testing set (NN top; RF bottom) – colours given in text. Figure 1: Illustration of MultiScale Feature (left=original image; middle=segmentation; right=3x3 multi-scale features) Symmetric and Multi-Sc...

In this paper, one of the most important aspect of the Cognitive Radio i.e. Spectrum Sensing is considered. A new technique based on Multiple Input Multiple Output (MIMO) antennas is proposed for Spectrum Sensing in Cognitive Radio. This paper shows the results which prove that the use of MIMO antennas increases the “Probability of Detection” and decreases the “Probability of Missed Detection” ...

A novel architecture for the testing of enhanced data rates for GSM evolution (EDGE) networks is proposed, in which a reconfigurable radio platform is used to implement up to 16 EDGE physical layers in a RF baseband module (RFBBM). When the RFBBM is used in conjunction with a line server unit (LSU), a complete mobile station emulator (MSE) is formed. In this paper, the implementation and interf...

Recently, a packet reservation multiple access (PRMA) protocol was proposed for wireless communications. It can improve the system capacity by extracting the active terminals while they are in silent state. D. J. Goodman has analyzed the system by using the equilibrium point analysis (EPA). However, this method possibly generates multiple stable equilibrium points in high load condition. The ex...

background and objectives: there are different types of vascular access. we compared the patency rate for six months in ulnar-basilic fistula and radio-cephalic fistula for vascular access in hemodialysis patients.   methods: the study was performed on 60 patients of 50.6±13.5 years of age with end-stage renal failure undergoing hemodialysis from 2012-2014 in imam ali hospital in zahedan. patie...

Hot spots (HSs) are regions of enhanced radio emission produced by supersonic jets at the tip of the radio lobes of powerful radio sources. Obtained with the Very Large Telescope (VLT), images of the HSs in the radio galaxy 3C 445 show bright knots embedded in diffuse optical emission distributed along the post-shock region created by the impact of the jet into the intergalactic medium. The obs...

Portuguese language is a multiple sounds language. Regarding the different possible accents, Portuguese-speaking way seems to be one of the language’s most relevant characteristics. Radio, as a sound media, is able to represent this diversity. There are several radio shows produced towards the Portuguese culture diaspora. In this paper, we will analyse radio shows produced in Brazil for the Por...

OSCR, a framework for the implementation of a cognitive radio, is designed to facilitate the integration of a cognitive engine with one or more existing Software Communications Architecture (SCA) based radios. It consists of two components: a multiplexer, which acts as the cognitive engine’s point of control for each individual radio within the system, and an SCA resource within each radio, whi...

ABSTRACTThis study examined information flow on minisett technology among yam farmers in Delta State, Nigeria. A sample size of 180 respondents was involved in the study. Data were obtained from respondents of the study through the use of a validated interview schedule. Percentage, frequency count and mean scores were used to summarize data, while line diagrams were used to develop maps of info...

Background and Objectives: There are different types of vascular access. We compared the patency rate for six months in ulnar-basilic fistula and Radio-Cephalic fistula for vascular access in hemodialysis patients.   Methods: The study was performed on 60 patients of 50.6±13.5 years of age with end-stage renal failure undergoing hemodialysis from 2012-2014 in Imam Ali hospital in Zahedan. Pat...