A5031087078- Mechanical Behavior of Composites
- Laser-Matter Interactions and Applications
- Building Energy and Comfort Optimization
- Wind Energy Research and Development
- Advanced Fiber Laser Technologies
- Conservation Techniques and Studies
- Balance, Gait, and Falls Prevention
- Structural Analysis of Composite Materials
- Hybrid Renewable Energy Systems
- Structural Analysis and Optimization
- Musculoskeletal pain and rehabilitation
- Spine and Intervertebral Disc Pathology
- Material Properties and Applications
- Textile materials and evaluations
- Lower Extremity Biomechanics and Pathologies
- Wind and Air Flow Studies
- Contact Mechanics and Variational Inequalities
- Icing and De-icing Technologies
- Energy Efficiency and Management
- Advanced ceramic materials synthesis
- Vehicle Noise and Vibration Control
- Quantum Information and Cryptography
- Soil, Finite Element Methods
- Knee injuries and reconstruction techniques
- Electric Power System Optimization
Hellenic Mediterranean University
2007-2024
Foundation for Research and Technology Hellas
2019-2020
FORTH Institute of Electronic Structure and Laser
2017
University of Warwick
2003-2004
This review presents the technological infrastructure that will be available at Extreme Light Infrastructure Attosecond Pulse Source (ELI-ALPS) international facility. ELI-ALPS offer to scientific community ultrashort pulses in femtosecond and attosecond domain for time-resolved investigations with unprecedented levels of high quality characteristics. The laser sources beamlines facility make technology accessible scientists lacking access these novel tools. Time-resolved investigation...
The scope of this article is to review the potential causes that can lead wind turbine blade failures, assess their significance a turbine’s performance and secure operation summarize techniques proposed prevent these failures eliminate consequences. Damage blades be induced by lightning, fatigue loads, accumulation icing on surfaces exposure airborne particulates, causing so-called leading edge erosion. above effects damage ranging from minor outer surface erosion total destruction blade....
Abstract The quantum mechanical motion of electrons and nuclei in systems spatially confined to the molecular dimensions occurs on sub-femtosecond femtosecond timescales respectively. Consequently, study ultrafast electronic and, specific cases, nuclear dynamics requires availability light pulses with attosecond (asec) duration sufficient intensity induce two-photon processes, essential for probing intrinsic system dynamics. majority atoms, molecules solids absorb extreme-ultraviolet (XUV)...
The objective of this study is to compare the gait variability patients with lumbar spinal stenosis (experimental group) healthy individuals (control group). hypothesis that preoperative experimental group higher than control group. consisted 35 adults (18 males, 17 females). subjects suffered exclusively from stenosis. were determined by MRI scans. A tri-axial accelerometer sensor was used for measurement, and differential entropy algorithm quantify acceleration signal. Oswestry Low Back...
This paper is the first part of a two-part series, which presents preliminary findings on novel flexible curved wind turbine blade designed for passive control, comparing its aerodynamic performance and behavior against conventional straight blade. Characterized by ability to twist around longitudinal axis under bending loads, engineered self-regulate in response varying speeds, optimizing power output enhancing operational safety. design utilizes inherent elasticity specific geometric...
Abstract Crete and Rhodes represent the two biggest isolated power systems in Greece. The energy production both islands is based on thermal plants. annual wind rejection percentage calculated for this paper. rejected defined as electric produced by turbines not absorbed utility network, mainly due to system's stability dynamic security reasons. A parametric calculation of percentage, terms installed power, demand maximum allowed instant penetration accomplished. methodology takes into...
The objective of this study was to assess the gait variability lumbar spinal stenosis (LSS) patients and evaluate its postoperative progression. hypothesis that LSS patients' preoperative in frequency domain higher than corresponding postoperative. A tri-axial accelerometer sensor used for measurement a spectral differential entropy algorithm measure variability. Twelve subjects with were measured before after surgery. Preoperative measurements performed 2 days Postoperative 6 12 months...
Sports centres constitute major energy consumers. This article presents the proposed performance upgrade process and achieved results for municipal sports centre in Arkalochori, Greece. The facility consists of a swimming pool centre, an outdoor 8 × football court, two tennis basketball courts. It operates with considerably high consumption due to lack any measure towards its efficiency improvement since initial construction 2002. Due significantly heating cost, remains operative only during...
Sport centers are significant energy consumers. This article outlines the engineering design for a comprehensive performance upgrade of indoor sport hall in Arkalochori, Greece, and presents projected results. The constitutes major facility mainland Crete, hosting broad cluster municipal activities official basketball games local team 2nd national category. Having being constructed mid ‘90s, exhibits very low thermal performance, with considerably high U-factors all constructive elements...
The objective of this study was to compare the gait variability patients with isolated anterior cruciate ligament (ACL) deficiency (experimental group) that healthy individuals (control group). hypothesis experimental group would be higher than control group. consisted 20 men an ACL tear and without any neurological and/or musculoskeletal pathology or injury. acceleration signal analysed using Gait Evaluation Differential Entropy Method (GEDEM). GEDEM index in medio-lateral axis...
Satellite/terrestrial integration in the context of 5G is a very promising aspect, as it combines unrivaled performance with unprecedented benefits satellite communications, such ubiquitous broadband coverage and inherent multicast capabilities. This paper presents design implementation an end-to-end experimental testbed for integrated satellite/terrestrial services, developed frame EU 5GENESIS project. The encompasses all components network suitable wide-area field trials over several use...
Abstract Nonclassical light sources have a vital role in quantum optics as they offer unique resource for studies technology. However, their applicability is restricted by low intensity, while the development of new schemes producing intense nonclassical challenging task. In this perspective article, we discuss potential that could be used towards high photon flux and future prospects nonlinear optics.
Electron quantum path interferences in strongly laser-driven aligned molecules and their dependence on the molecular alignment is an essential open problem strong-field physics. Here, we demonstrate approach which provides direct access to observation of these interference processes. The based combination time-gated-ion-microscopy technique with a pump-probe arrangement used align generate high-order harmonics. By spatially resolving pattern produced by spatiotemporal overlap harmonics...
An accelerometer system was used to measure the characteristics of motion 133 healthy male soccer athletes in a 30-s walking test and data obtained were analysed using gait evaluation differential entropy method (GEDEM). GEDEM processes acceleration calculates an index that provides quantitative subject's gait, at low cost with negligible effect on subject. The not significantly correlated age, body weight, mass index, or number years active training. value for anterior-posterior axis showed...
This paper is the second in a two-part series presenting preliminary results on passively controlled wind turbine rotor system using flexible curved blade concept. Building initial findings, this segment explores application of glass-fiber-reinforced polymer (GFRP) composites with strategically oriented layers to enhance flexibility and aerodynamic performance ensure operational safety. Previously, we demonstrated that blades fabricated from isotropic materials an NACA4415 airfoil profile...
We report a novel Optical Beam Steering Technique (OBST) for fiber to free-space coupling with extreme stability of the efficiency and high tolerance temperature fluctuations. The compact optical system is based near monolithic (ZERODUR) couplers relies on wedges plates perform fine-steering beam. In our approach, we use coarsely aligned then fine alignment using plates. This separation course tuning significantly reduces manufacturing assembly requirements couplers. At same time, it results...