A5049973451- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Infrared Target Detection Methodologies
- Advanced Optical Sensing Technologies
- Robotics and Sensor-Based Localization
- Advanced Measurement and Detection Methods
- Advanced Image and Video Retrieval Techniques
- Guidance and Control Systems
- Military Defense Systems Analysis
- Advanced Vision and Imaging
- Energy Efficient Wireless Sensor Networks
- Ocular and Laser Science Research
- Optical Imaging and Spectroscopy Techniques
- Neutrino Physics Research
- Optical Systems and Laser Technology
- Dark Matter and Cosmic Phenomena
- Laser Design and Applications
- Transition Metal Oxide Nanomaterials
- Pulsars and Gravitational Waves Research
- Remote-Sensing Image Classification
- IoT and Edge/Fog Computing
- Image Enhancement Techniques
- Magnetic Properties of Alloys
- Impact of Light on Environment and Health
The University of Adelaide
2024
ARC Centre of Excellence for Gravitational Wave Discovery
2024
Cranfield University
2013-2022
Defence Academy of the United Kingdom
2012-2022
Energy Technologies Institute
2019
Queensland University of Technology
2016
University of Sheffield
2013-2015
Sheffield Children's University
2012
Georgia Southern University
2009
University of Portsmouth
2006-2008
This paper introduces the concept and principles of hyperspectral imaging (HSI) it briefly outlines how defence homeland security sectors can benefit from application this extremely versatile technology. pros cons various HSI system configurations, with particular emphasis on two most commonly deployed spectrograph techniques, namely, dispersive narrow-band tuning filter system. It describes be utilized for target acquisition particularly when there is no a priori knowledge target, then...
In the last decade, visual odometry (VO) has attracted significant research attention within computer vision community. Most of works have been carried out using standard visible-band cameras. These sensors offer numerous advantages but also suffer from some drawbacks such as illumination variations and limited operational time (i.e., daytime only). this paper, we explore techniques that allow us to extend concepts beyond visible spectrum. We introduce a localization solution based on pair...
The Crystal Ball detector at SPEAR has been used to investigate the decays ψ′→γγJψ, Jψ→(e+e− or μ+μ−) resulting from production of 8×105ψ′. From this selection data we measure branching ratios for processes ψ′→(η π0)Jψ and ψ′→γχ, χ→γJψ. An analysis angular correlations in latter process furnishes measurements χ(3.55) χ(3.51) spins multipole structure radiative transitions.Received 9 December 1981DOI:https://doi.org/10.1103/PhysRevD.25.2259©1982 American Physical Society
Evidence for a new resonance $\ensuremath{\theta}\ensuremath{\rightarrow}\ensuremath{\eta}\ensuremath{\eta}$ in the process $\frac{J}{\ensuremath{\psi}}\ensuremath{\rightarrow}\ensuremath{\gamma}\ensuremath{\eta}\ensuremath{\eta}$ is presented. The parameters of $\ensuremath{\theta}$ are $M=1640\ifmmode\pm\else\textpm\fi{}50$ MeV and $\ensuremath{\Gamma}={220}_{\ensuremath{-}70}^{+100}$ MeV. ${J}^{\mathrm{PC}}={2}^{++}$ preferred over ${0}^{++}$.
From a partial-wave analysis of the $K\overline{K}\ensuremath{\pi}$ system in decay $\frac{J}{\ensuremath{\psi}}\ensuremath{\rightarrow}\ensuremath{\gamma}{K}^{+}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}$, it is determined that quantum numbers resonance at 1440 MeV, previously identified as $E(1420)$, are ${J}^{\mathrm{PC}}={0}^{\ensuremath{-}+}$. This new particle has been named $\ensuremath{\iota}$.
In this paper, a novel method based on binary Particle Swarm Optimization (BPSO) inspired probability is proposed to solve the camera network placement problem. Ensuring accurate visual coverage of monitoring space with minimum number cameras sought. The defined by realistic and consistent assumptions taking into account characteristics. total, nine evolutionary-like algorithms BPSO, Simulated Annealing (SA), Tabu Search (TS) genetic techniques are adapted All these introduced in new...
The detection of stress at early stages is beneficial to both individuals and communities. However, traditional methods that use physiological signals are contact-based require sensors be in contact with test subjects for measurement. In this paper, we present a method detect psychological non-contact manner using human response. particular, utilize hyperspectral imaging (HSI) technique extract the tissue oxygen saturation (StO2) value as feature detection. Our experimental results indicate...
The magnetic properties of single crystals the cubic B20 modification metallic compound FeGe have been investigated by means a vibrating-sample magnetometer and torsion balance. Transition to an ordered spin structure occurs at 280 K. Magnetization curves below this temperature shown almost linear field dependence for [100], [111] directions with about 2 kOe required saturation low temperatures, indicating small magnetocrystalline energy compared exchange energy. moment as extrapolated zero...
Abstract This paper describes the research and experimental flight test activities conducted by Italian Air Force Official Test Centre (RSV), in collaboration with Alenia Aermacchi Cranfield University, order to confer night vision imaging systems (NVIS) capability TORNADO Interdiction Strike Electronic Combat Reconnaissance aircraft. The included design, development, test, evaluation activities, including goggle (NVG) integration, cockpit instruments, external lighting modifications, as...
A search has been made with the Crystal Ball Detector for axionlike particles in radiative $\frac{J}{\ensuremath{\Psi}}$ decays. An upper limit on branching ratio $B(\frac{J}{\ensuremath{\Psi}}\ensuremath{\rightarrow}\ensuremath{\gamma}+a)<1.4\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}5}$ (90% C.L.) is obtained. This result holds long-lived, noninteracting pseudoscalar or vector of mass less than 1 GeV. Thus, this experiment also places stringent limits existence other possible...
An ${{\ensuremath{\eta}}_{c}}^{\ensuremath{'}}$ candidate state is observed at a mass $M=3592\ifmmode\pm\else\textpm\fi{}5$ MeV and with natural linewidth $\ensuremath{\Gamma}<8$ (95% confidence level), by using the "crystal ball" NaI(Tl) detector Stanford Linear Accelerator Center (SPEAR). The evidence found in inclusive photon spectrum decays of ${\ensuremath{\psi}}^{\ensuremath{'}}(3684)$, where signal corresponding to radiative transition this branching ratio between 0.2% 1.3%...
An ${\ensuremath{\eta}}_{c}$ candidate state has been observed with a mass $M=2978\ifmmode\pm\else\textpm\fi{}9$ MeV and natural line width $\ensuremath{\Gamma}<20$ (90% confidence level) using the Crystal Ball NaI(T1) detector at SPEAR. Radiative transitions to this are from ${\ensuremath{\psi}}^{\ensuremath{'}}(3684)$ $\frac{J}{\ensuremath{\psi}}(3095)$ in inclusive photon spectra. The branching fraction ${\ensuremath{\psi}}^{\ensuremath{'}}$ is...
The spin structure of the metallic hexagonal B 35 phase FeGe has been studied by means susceptibility and magnetization measurements. Below Neel temperature TN = 411 K is a uniaxial antiferromagnet with spins parallel to c-axis. In each c-plane all are ferromagnetically coupled an exchange constant J0 ≈ 22 meV. antiferromagnetic between nearest neighbour next c-planes J1 -3.5 meV J2 -0.9 resp. in molecular field model. Susceptibility flop experiments indicate that tilt away from c-axis below...
The availability of powerful eye-safe laser sources and the recent advancements in electro-optical mechanical beam-steering components have allowed laser-based Light Detection Ranging (LIDAR) to become a promising technology for obstacle warning avoidance variety manned unmanned aircraft applications. LIDAR outstanding angular resolution accuracy characteristics are coupled its good detection performance wide range incidence angles weather conditions, providing an ideal solution, which is...
The Trickle Algorithm has enjoyed much popularity and widespread use as a basic network primitive ensuring low-cost data consistency in lossy networks. is shaped by the so-called short-listen problem, hence imposition of listen-only period. Such period allows to robustly address problem at expense increased latency. In this letter, we introduce simple yet powerful optimization that can dramatically decrease Trickle's latency with virtually no additional overhead its scalability robustness....
Studied contributions of maternal psychological distress, family stress load, and risk factors, coping strategies in predicting behavior problems 441 inner-city black primary-grade children. Results indicated distress high load were associated with child problems. Family offered no protection against risk, while life difficulties by reframing them was detrimental to behavioral adjustment. Active help-seeking (i.e., mobilization, acquiring social supports) served moderate the effects...
The decay $\frac{J}{\ensuremath{\psi}}$ into $3\ensuremath{\gamma}$ final states has been studied. No evidence is found for the existence of $X(2.83)$ or any heavy narrow state (e.g., ${\ensuremath{\eta}}_{c}$) decaying two photons. Upper limits are given on branching ratio $\frac{J}{\ensuremath{\psi}}\ensuremath{\rightarrow}{\ensuremath{\eta}}_{c}$, ${\ensuremath{\eta}}_{c}\ensuremath{\rightarrow}2\ensuremath{\gamma}$ ${\ensuremath{\eta}}_{c}$ masses in 2.7-3.0-GeV region. In addition,...
In this paper we briefly review the research and flight test activities performed to develop integrate Laser Obstacle Avoidance Monitoring (LOAM) system on helicopter platforms focus recent advances towards development of a new scaled LOAM variant for small-to-medium size Unmanned Aircraft (UA) platforms. After brief description architecture sensor characteristics, emphasis is given performance models data processing algorithms developed obstacle detection, classification calculation...