Abstract An all‐dielectric metasurface exhibiting a strong toroidal resonance is theoretically designed and experimentally demonstrated as an angular‐dependent resonant polarization beam‐splitter in the microwave K‐band. The fabricated by embedding square periodic array of high‐permittivity ceramic cuboid resonators 3D‐printed substrate polylactic acid. It that properly selecting resonator geometry tuning angle incidence through mechanical rotation, can switch between beam splitting bandpass...

Biodiversity monitoring is a critical global issue, requiring reliable and precise information on forest tree attributes to ensure sustainable management biodiversity conservation. Remote sensing (RS) technology has emerged as powerful tool for monitoring, offering significant advantages over traditional methods. The advent of advanced LiDAR technologies revolutionized the field, enabling high-resolution 3D data collection capturing intricate structures. Despite advancements, efficiently...

This study outlines the conceptualisation and development of a public participation geographic information system (ppGIS) web GIS (webGIS) platform for hosting, visualizing, updating ecosystem services (ES) related data at national scale through participatory mapping. The ppGIS/webGIS is developed within framework LIFE-IP 4 Natura, project has received most substantial nature-focused funding scheme Greece approved by European Commission. One project's central goals mapping assessment...

This study investigates the ionospheric total electron content (TEC) variations prior to earthquake (MW = 6.9) of 24 May 2014 in Samothraki island north Aegean Sea Greece. TEC estimates were analyzed using data from GNSS (GPS+Glonass) permanent networks with aim detect possible anomalies associate seismic event. The test period covers one week data, 4 days before and two after Selected stations are scattered around epicenter distances 16 up 1375 km. values estimated for every hour PPP...

The Smart Eye Application is an augmented reality app for mobile devices that enables the in-situ 3D visualization of underground and inaccessible to public archaeological sites monuments. Accessibility excavated monuments often hindered reasons preservation or urban development. Portable finds are transferred and, in some cases, exhibited local museums, but non-portable remains ancient structures become eventually effaced from landscape collective memory communities. provides “x-ray” type...

Abstract. Augmented Reality/Virtual Reality (AR/VR) technology offers novel and excited experiences to visitors of cultural sites. Extended recent technological advances in smart communication devices made the connection real virtual worlds more affordable effective. In spite rapid development availability AR/VR applications heritage, there still exist gaps challenges accurate positioning navigation visitors’ both out-doors archaeological spaces as well in-doors museum spaces. Recent embody...

Abstract. The use of Augmented Reality (AR) technology is widespread in countless archaeological sites and a variety applications. Archaeological excavations lead to finds, some which are transported for preservation then exhibition museums (jewelry, vases, etc.), while another part them documented detail remains situ (eg building walls), roads, grave covers, etc.). However, after the registration it impossible observe them. As our research project, we will develop first time AR methodology...

Liver cancer is estimated to be the fifth most common in world, while it also considered third leading cause of death. In cases primary liver cancer, surgery combination with chemotherapy and radiotherapy can lead a complete cure or significantly increase patient’s life expectancy. Since an organ that performs several critical functions human body, precise estimation disease (position size tumors its vicinity vessels) plays vital role successful operation. some cases, removal tumor may...

Abstract. Without additional prior information, the pose of a camera estimated with computer vision techniques is expressed in local coordinate frame attached to camera’s initial location. Albeit sufficient many cases, such an arbitrary representation not convenient for employment certain applications and has be transformed system external before further use. Assuming that firmly mounted on moving platform, this paper describes method continuously tracking projected system. By combining...

Tropospheric remote sensing based on high-grade Global Navigation Satellite Systems (GNSS) is nowadays an established technique termed as GNSS-Meteorology. The GNSS signal propagation delay in the troposphere provides information to infer Integrated Water Vapor (IWV), comprising a valuable data source for Numerical Weather Prediction (NWP) models. This study aimed at investigating performance of low-cost dual-frequency receiver tropospheric monitoring. For this purpose, near real-time...

Remote sensing of the atmosphere with high-grade Global Navigation Satellite System (GNSS) is nowadays an established technique in GNSS-Meteorology. GNSS signal propagation delay troposphere provides information Water Vapor (WV), which most abundant greenhouse gas (accounting for ~70% global warming) and not well-estimated by current meteorological models. derived WV has been proved a valuable data source high-resolution limited area Numerical Weather Prediction (NWP) Nowadays, low-cost...

Liver transplantation has evolved into a safe life-saving operation and remains the golden standard in treatment of end stage liver disease. The main limiting factor application is graft shortage. Many strategies have been developed order to alleviate shortage, such as living donor partial split for adult pediatric patients. In these strategies, volume assessment paramount importance, size mismatch can severe consequences success transplantation.To evaluate safety, feasibility, accuracy...

An all-dielectric metasurface composed of high-permittivity ceramic cuboid resonators embedded in polylactic acid is investigated as an angular-dependent polarization beam splitter the K-band. The operation based on a strong toroidal resonance with highly asymmetric Fano profile and very low (high) dispersion associated p-(s-) polarized mode stemming from particular field mode. Large extinction ratios, insertion losses, mechanically tunable splitting ratio are experimentally demonstrated.

Abstract. Smart Eye is a research project focused on developing and operating, in real-time, an innovative system, that allows the visualization of invisible, known, covered by ground or constructions, monuments finds archaeological site, using Augmented Reality (AR) environment. The visitors site will be able to observe antiquities (3D models descriptive information) screen their mobile device (smart phone and/or tablet). system integrates positioning pose estimation technologies, AR...

Technological innovation has been proven a valuable tool in the modern era of liver surgery. 3-dimensional (3D) printing along with virtual and augmented reality (VR AR), as part this technological development, can contribute to avoid high-risk complications during More specific, terms transplantation, small-for-size large-for-size syndromes be avoidable timely utilization these modalities, by measuring volume both donor’s recipient’s abdomen. Additionally, artificial bio-printed livers have...

One of the principal techniques for ground-based ionospheric monitoring is based on high-grade Global Navigation Satellite System (GNSS) receivers. Recently, availability low-cost commercial GNSS modules encouraged their exploitation in frames several positioning engineering applications. The aim this study to investigate capability a receiver with performance comparable that clear advantages cost, size and power consumption. A comparative between LeicaGR30 geodetic receiver, low-cost,...

Abstract In recent years, sophisticated 3D reconstruction and measuring techniques such as Terrestrial Laser Scanning (TLS), LiDAR applications, Photogrammetry have gained popularity for surveying mapping of physical environments. Using a case study UNESCO-recognized Byzantine Bath monument, we examine the accuracy reliability different techniques. To assess dependability modern measurement systems, created models area interest using combination Scanning, technology in conjunction with...

The Precise Point Positioning (PPP) analysis method adapted for monitoring coordinate displacements from GNSS permanent stations data. One week period data were analyzed covering the Samothrace strong earthquake event of 6.8M. sample processed with Bernese v5.2 PPP engine and online web platform JPL which uses GIPSY/OASIS v6.3 software package. Also, validation purposes output results compared those derived by network means GAMIT processing MIT. Our experiments proved ability to measure...