Wireless Sensor Networks are considered to be among the most rapidly evolving technological domains thanks numerous benefits that their usage provides. As a result, from first appearance until present day, have had continuously growing range of applications. The purpose this article is provide an up-to-date presentation both traditional and recent applications hopefully not only enable comprehension scientific area but also facilitate perception novel In order achieve goal, main categories...

Modern achievements accomplished in both cognitive neuroscience and human–machine interaction technologies have enhanced the ability to control devices with human brain by using Brain–Computer Interface systems. Particularly, development of brain-controlled mobile robots is very important because systems this kind can assist people, suffering from devastating neuromuscular disorders, move thus improve their quality life. The research work presented paper, concerns a system which performs...

The intersection of medical image classification and deep learning has garnered increasing research interest, particularly in the context breast tumor detection using ultrasound images. Prior studies have predominantly focused on classification, segmentation, feature extraction, often assuming that input images, whether sourced from healthcare professionals or individuals, are valid relevant for analysis. To address this, we propose an initial binary filter to distinguish between irrelevant...

In this letter, we show, in terms of the fractureinduced electromagnetic emissions (EME) recorded prior to earthquake Chania, Greece [(35.50° N, 23.28° E); October 12, 2013; M <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">w</sub> = 6.4] and seismicity area, that there were different evidence indicating advent main shock a few days before its occurrence. Specifically, both megahertz (MHz) EME foreshock activity came critical condition The...

The development of contemporary complex technological systems prerequisites interdisciplinary design and simulation methodologies. Such an approach is demonstrated in the present work. Toward manufacturing a hand-held device aiming at internal body temperature measurements using passive microwave radiometer technology, five perspectives are elaborated. proposed system consists ultra-wide-band compact antenna, multi-frequency radiometer, digital processing unit, all enclosed portable...

Abstract. Many aspects of earthquake generation still escape our full understanding. Observations electromagnetic emissions preceding significant earthquakes provide one the few cases premonitory events that are possibly related to a subsequent earthquake. Understanding factors control precursors seems be important for determining how nucleate. Here we report results comprehensive study appearance individual patterns in candidate indicating breaking backbone large and strong asperities...

This paper reports an attempt to use ultra-low-frequency (ULF) magnetic field data from a space weather monitoring magnetometer array in the study of earthquake (EQ) precursors Greece. The four stations Hell

Objectives . In this work, a simple technique to assess the image quality characteristics of postprocessed is developed and an easy use figure (FIQ) introduced. This FIQ characterizes images in terms resolution noise. addition information capacity, defined within context Shannon’s theory, was used as overall index. Materials Methods A digital mammographic with three filters. Resolution noise were calculated via Modulation Transfer Function (MTF), coefficient variation, quality. addition,...

Over the last decade, Blockchain Technology has evolved from being a peer-to-peer implementation of digital currency into framework for numerous applications. That is, blockchain is widely recognized as technology behind cryptocurrencies such Bitcoin, but recent research indicates that it can be exploited way more than that. Among most notable characteristics are system decentralization, data immutability, transaction transparency, and user privacy. Thus, becomes apparent significantly...

This paper addressed a fractal evolution of 11 one-month lasting MHz electromagnetic disturbances, recorded in Greece prior to nine significant earthquakes 2009. Time-space wavelet-based power spectral techniques were employed the analysis. All investigated signals evolved naturally epochs organization space and time. Continuous was detected seven signals. Significant number successive () power-law -values observed lying between 1.5 3.0 or above. The majority segments exhibited...

This paper proposes the development of an advanced fuzzy logic controller which aims to perform intelligent automatic control yaw movement wind turbines. The specific takes into account both velocity and acceptable error correlation in order achieve maximum performance efficacy. In this way, proposed system is remarkably adaptive existing conditions. turbine enabled retain its power output close nominal value at same time preserve from pointless movement. Thorough simulation tests evaluate...

Laboratory studies suggest that electromagnetic emissions in a wide frequency spectrum ranging from kilohertz (kHz) to very high megahertz (MHz) frequencies are produced by the opening of microcracks, with MHz radiation appearing earlier than kHz radiation. Earthquakes large-scale fracture phenomena Earth's heterogeneous crust. Thus, radiated kHz–MHz detectable not only laboratory but also at geological scale. Clear MHz-to-kHz anomalies have been systematically detected over periods few days...

The hELlenic Seismo-ElectroMagnetics Network (ELSEM-Net, http://elsem-net.uniwa.gr) is a network of telemetric stations spanning all over Greece for the monitoring fracture-induced electromagnetic emissions (FEME), often also referred to as radiation (FEMR). At laboratory scale, it has been proved that FEME/FEMR are produced by opening cracks in wide frequency spectrum ranging from MHz kHz bands general (macroscopic) fracture approaching, rendering them precursors permit gradual damage...

This paper focuses on the environmental monitoring of radon in soil as a potential trace gas search earthquake precursors. The reports following: (a) Pre-monitoring experiments. (b) Set-up methods and devices. (c) Active passive results concentrating two extremely-strong anomalies (∼ 500 kBq m−3). (e) Discussion regarding employed ±2σ technique for identifying disturbances. (f) Application wavelet-power-spectrum fractal analysis detecting power-law behaviour. strong exhibited anti-persistent...

Microwave radiometers are instruments for resolving blackbody radiation of heated matter above absolute zero, with many applications including breast cancer diagnosis.In this work a prototype microwave radiometer controllable noise reference generator was designed.The design source is based on the NC303 diode that delivers symmetrical white Gaussian and flat output power versus frequency (10MHz -10GHz).An embedded PID control scheme responsible temperature stabilization sub-unit.The...

Robotic sensor networks (RSNs) can be described as of devices equipped with communication, sensing and actuation capabilities. Successful implementations RSNs require tackling challenging problems lying at the intersection robotics, communication perception. In addition, resemble human societies emerging intelligent multi-agent systems in some respects. these collaborative distributed systems, each node decides which to interact forms a network other nodes order improve quality decisions....

This paper presents a navigation system for autonomous analyses of water quality using unmanned boats at drinking reservoirs such as dams and holding ponds. As it is well-known, plays an important role in controlling health the state disease. Therefore, needs to be analyzed periodical intervals. Various systems exist automatic common problem these complexity associated with collecting samples. To deal this problem, boat loaded Sonde probes can used analyzing water. In study, investigated...

Microwave Thermograph (MT) is based on measuring the electromagnetic field spontaneously emitted by a body in micro-wave frequency range. In microwave radiometers, temperature measurement made thermal noise power. The primary module that used for detecting this power RF Front-end, which must meet very challenging requirements terms of accuracy at input receiver. work will be presented here exhibit design approaches and specifications as well trade-offs performance criteria towards...

A new data storage system designed for a acquisition is presented. The article describes the architecture of large non-volatile memory (DSS) mainly developed compact flash (CF) memory. DSS handles available space medium as circular buffer rather than an emulated disk in order to provide efficient and easy use software interface. simply another name first-in-first-out (FIFO) buffer. helps visualize wraparound condition. CF memories persistent using solid-state technology at lower cost power...

In this paper we show, in terms of fracture-induced electromagnetic emissions (EME) that the Earth system around focal areas came to critical condition a few days before occurrence each one two recent earthquakes Kefalonia (Cephalonia), Greece. Specifically, EME were recorded prior first earthquake [(38.22o N, 20.53oE), 26 January 2014, M=6.1] & six second [(38.26o 20.39oE), 03 February M=6.0]. MHz by remote telemetric stations on island and neighboring Zante simultaneously both cases. The...