Miracle-dz/UniFAR-FTUs huggingface dataset:
Augmented reality based on the integration of mobile edge computing and fiber-wireless access networks

Fiber-wireless (FiWi) access networks are typical hybrid access technologies that combine the high bandwidth of optical access and the flexibility and ubiquitous coverage of wireless access. Mobile edge computing (MEC) provides low latency services and cloud computing capabilities at the edge networks. The convergence of MEC and FiWi access networks can improve network performance and QoS (Quality of Service) of augmented reality (AR) services. Therefore, in this paper, we study the problem of integrating MEC with FiWi to enhance AR services. We first present the integration scheme of MEC with FiWi for AR applications. We then propose our AR applications enhanced by the integration of MEC and FiWi access, which can provide multiple low-latency AR services. Performance evaluation results demonstrate that the integration of MEC with FiWi can support long-distance AR applications with low delay.
Joint polar and run-length limited decoding scheme for visible light communication systems

In Visible Light Communication (VLC) systems, Runlength limited (RLL) codes are widely used to avoid the long runs of 1’s and 0’s. However, there are a small number of Forward Error Correction (FEC) codes can well incorporate with the traditional RRL codes. In this paper, a serial joint of Polar code and Soft-Input Soft-Ouput (SISO) RLL decoding scheme is proposed to enhance the transmission efficiency while guaranteeing an equal number of 1’s and 0’s. The simulation results confirm that our proposed algorithm has consistently outperform the existing schemes.
FDTD method and models in optical education

In this paper, finite-difference time-domain (FDTD) method has been proposed as a pedagogical way in optical education. Meanwhile, FDTD solutions, a simulation software based on the FDTD algorithm, has been presented as a new tool which helps abecedarians to build optical models and to analyze optical problems. The core of FDTD algorithm is that the time-dependent Maxwell’s equations are discretized to the space and time partial derivatives, and then, to simulate the response of the interaction between the electronic pulse and the ideal conductor or semiconductor. Because the solving of electromagnetic field is in time domain, the memory usage is reduced and the simulation consequence on broadband can be obtained easily. Thus, promoting FDTD algorithm in optical education is available and efficient. FDTD enables us to design, analyze and test modern passive and nonlinear photonic components (such as bio-particles, nanoparticle and so on) for wave propagation, scattering, reflection, diffraction, polarization and nonlinear phenomena. The different FDTD models can help teachers and students solve almost all of the optical problems in optical education. Additionally, the GUI of FDTD solutions is so friendly to abecedarians that learners can master it quickly.
Development of a human-robot cooperative system based on visual information

In recent years, along with the aging of society worldwide, decrease of working population has become a serious problem. For this reason, robots are expected to substitute human work, automate distribution, and support human daily life, especially, elderly care assistance. In this research, we focus on the support of those who need care in everyday life, and, in this paper, we propose a human-robot cooperative system that supports acquisition of objects in cooperation with a human. The outline of the action of this robot is as follows: (i) It moves to the location designated by a user autonomously (not by remote control): (ii) On arrival, the robot exchanges information by video with the user who is at a remote place, and acquires the objects designated by the user among those placed there. (iii) After the acquisition, the robot moves again autonomously to the user and hands over the objects to the user. In this paper, we focus on step (ii) and show methods and some experimental results.
Fiber optic sensor for monitoring a density of road traffic

Authors of this article have focused on the use of fiber-optic technology in the car traffic. The article describes the use of fiber-optic interferometer for the purpose of the dynamic calculation of traffic density and inclusion the vehicle into the traffic lane. The objective is to increase safety and traffic flow. Presented solution is characterized by the non-destructive character to the road - sensor no need built into the roadway. The sensor works with standard telecommunications fibers of the G.652 standard. Other hallmarks are immunity to electromagnetic interference (EMI) and passivity of concerning the power supply. The massive expansion of optical cables within telecommunication needs along roads offers the possibility of connecting to the existing telecommunications fiber-optic network without a converter. Information can be transmitted at distances of several km up to tens km by this fiber-optic network. Set of experimental measurements in real traffic flow verified the functionality of presented solution.
Hybrid algorithm of maximum-likelihood expectation-maximization and multiplicative algebraic reconstruction technique for iterative tomographic image reconstruction

Maximum-likelihood expectation-maximization (ML-EM) method and multiplicative algebraic reconstruction technique (MART), which are well-known iterative image reconstruction algorithms, produce relatively highquality performance but each of which has an advantage and disadvantage. In this paper, in order to compensate for both disadvantages, we present a novel iterative algorithm constructed by a nonautonomous iterative system derived from the minimization of an α-skew Kullback–Leibler divergence, which is considered as a combined objective function for ML-EM and MART. We confirmed effectiveness of the proposed hybrid method through numerical experiments.
A novel filter based on a dual-mode air-filled substrate integrated waveguide cavity resonator

This paper presents a novel filter based on an air-filled substrate integrated waveguide (SIW) cavity resonator. This structure is inspired by the air-filled SIW, recently proposed to realize integrated interconnects with reduces losses. The proposed resonant cavity allows introducing two poles and two transmission zeros in the frequency response of the filter. The size and position of the air-filled portion of the SIW cavity permits to control the resonance frequency of the first two cavity modes, thus setting the pass-band of the filter. The position of the input/output port allows controlling the position of the transmission zero. A filter operating at 4 GHz, with a relative bandwidth of 1.5% and two transmission zeros, has been designed and experimentally verified.
Allogeneic stem cell transplantation using lymphoablative rather than myeloablative conditioning regimen for relapsed or refractory lymphomas

In relapsed or refractory non‐Hodgkin lymphoma (NHL), allogeneic hematopoietic stem cell transplantation (allo‐HSCT) provides graft‐versus‐lymphoma activity resulting in fewer incidences of relapse. However, therapy‐related mortality (TRM) remains an important challenge. We attempted to introduce our reduced‐intensity conditioning (RIC) regimen. From 2007 to 2013, we treated 28 relapsed or refractory NHLs with allo‐HSCT. All were pre‐conditioned with fludarabine [FLU, 180 mg/body surface area (BSA)/6 days] and melphalan (MEL, 70 mg/BSA/1 day); 25 (all but 3) were additionally treated with total body irradiation (TBI, 800 cGy/4Fx/2 days). Peripheral blood stem cells were collected from matched siblings (n = 10) or suitably matched unrelated (n = 18) donors. There were eight diffuse large B‐cell lymphomas, seven peripheral T‐cell lymphoma not otherwise specified, give lymphoblastic lymphomas, two mantle cell lymphomas, and six various other lymphomas. Of these patients, 10 relapsed after auto‐HSCT, 5 relapsed after chemotherapy, and 13 were refractory lymphomas. After allo‐HSCT, complete remission was achieved in 22 (78.5%) patients. After a median follow‐up of 24.8 months, 3‐year overall survival and disease‐free survival were 62.4 and 59.2% and the 3‐year TRM and relapse incidence were 14.9 and 28.6% respectively. Acute and chronic graft‐versus‐host diseases (GVHDs) were identified in 17 (≥Grade II in 12 patients) and 18 patients respectively, and the group with chronic GVHD showed favourable survival outcomes. In relapsed or refractory NHL, RIC‐allo‐HSCT using FLU + MEL + 800 cGy TBI showed favourable survival outcomes with acceptable TRM and relapse incidence. Copyright © 2015 John Wiley & Sons, Ltd.
Distributed Data Agregation with Geographical Routing in Wireless Sensor Networks

In wireless sensor networking applications, gathering sensed information and relaying it to the sink node using multi-hop communication in an energy efficient manner is of paramount importance. In this paper we present the idea of using aggregator nodes in order to decrease the amount of packets sent, hence reducing the energy required for communication. We introduce DDAP, a self-organizing distributed data aggregation protocol that uses randomly chosen aggregator nodes (ANs). We propose an extension of GOAFR, a robust geographical routing algorithm, collaborating with DDAP called geographical routing with aggregation nodes (GRAN). Simulation results evaluating the performance of DDAP and GRAN are presented. We show that by using DDAP and GRAN significant reduction in data traffic can be achieved, resulting in power saving and thus network lifetime prolongation.
Mode beating in tapered high-power lasers

The evolution of the optical beam profile along a high-power tapered semiconductor amplifier has been demonstrated by using a rigorous finite element-based and full-vectorial modal solution, coupled with the beam propagation approach. Numerically simulated results indicate that many higher order modes are generated and propagate along the tapered structure and their interference with the fundamental mode causes variations of the optical beam, both along the transverse and the axial directions, which significantly modify the output beam quality. Key words: Semiconductor Optical Amplifiers, Numerical Analysis, Finite element method, Beam propagation method.
Characterisation of Beaver Habitat Parameters That Promote the Use of Culverts as Dam Construction Sites: Can We Limit the Damage to Forest Roads?

The use of forest roads as foundations for dam construction by beavers is a recurrent problem in the management of forest road networks. In order to limit the damage to forest roads, our goal was to calculate the probability of beaver dam installation on culverts, according to surrounding habitat parameters, which could allow for improvement in the spatial design of new roads that minimise conflicts with beavers. Comparisons of culverts with (n = 77) and without (n = 51) dams in northwestern Quebec showed that catchment surface, cumulate length of all local streams within a 2-km radius, and road embankment height had a negative effect on the probability of dam construction on culverts, while flow level and culvert diameter ratio had a positive effect. Nevertheless, predicted probabilities of dam construction on culverts generally exceeded 50%, even on sites that were less favourable to beavers. We suggest that it would be more reasonable to take their probable subsequent presence into account at the earliest steps of road conception. Installing mitigation measures such as pre-dams during road construction would probably reduce the occurrence of conflicts with beavers and thus reduce the maintenance costs of forest roads.
A pattern recognition approach to enhancing structures in 3D CT data

In medical image processing, several attempts have been made to develop filters which enhance certain structures in 3D data based on analysis of the Hessian matrix. These filters also tend to respond to other structures, e.g. most vessel enhancement filters also enhance nodule-like objects. In this paper, we use pattern recognition techniques to design more optimal filters. The essential difference with previous approaches is that we provide a system with examples of what it should enhance and suppress. These examples are used to train a classifier that determines the probability that a voxel in an unseen image belongs to the desired structures. The advantages of such an approach are excellent performance and flexibility: it can be used for any structure by providing the appropriate examples. We evaluated our approach on enhancing pulmonary fissures, which appear as platelike structures in 3D CT chest scans. We compared our approach to the results of a recently proposed fissure enhancement filter. The results show that both methods are able to enhance the fissures, but our approach shows better performance; the areas under the ROC curves are 0.9044 and 0.7650, respectively.
1/f Noise Sources in Dual-Gated Indium Arsenide Nanowire Transistors

1/f noise is studied in dual-gated InAs nanowire transistors consisting of an omega top gate with high-atomic layer deposited dielectric and silicon dioxide to substrate back gate. Noise spectra at varying gate bias combinations are compared from devices with differing top-gate lengths to separate the noise contributions of the top-gated channel from the ungated access portion, including the metal-nanowire contacts. For a given device geometry, it is possible to bias the device into four different regimes where the resistance and the noise amplitude can each be independently dominated by either the channel or the access/contact regions. When the device is fully in the on state, the access/contact regions dominate both resistance and noise. When the device is operating near or below threshold, the channel dominates resistance and noise. For the lowest amount of overall 1/f noise, most of the nanowire should be covered by the top gate, minimizing the access region length.
Herceptest: Her2 expression and gene amplification in non‐small cell lung cancer

HER2 is an erbB/HER type 1 tyrosine kinase receptor that is frequently over‐expressed in malignant epithelial tumours. Herceptin, a humanised mouse monoclonal antibody to HER2, is proven therapeutically in the management of metastatic breast cancer, significantly prolonging survival when combined with cytotoxic chemotherapeutic agents. Immunohistochemical studies suggest that non‐small‐cell lung cancer (NSCLC) tumours may over‐express HER2. Our aim was to evaluate HER2 gene amplification and semi‐quantitative immuno‐expression in NSCLC. A total of 344 NSCLC cases were immunostained for HER2 expression in 2 centres using the HercepTest. Fluorescence in situ hybridisation (FISH) analysis for HER2 gene amplification was performed on most positive cases and a subset of negative cases. Fifteen cases (4.3%) demonstrated 2+ or 3+ membranous HER2 immuno‐expression. There was no correlation between immuno‐expression and tumour histology or grade. Tumours from higher‐stage disease were more often HercepTest‐positive (p < 0.001). All 4 HercepTest 3+ cases demonstrated gene amplification. One of the 5 2+ cases tested for gene amplification showed areas of borderline amplification and areas of polyploidy. None of the 19 HercepTest‐negative cases demonstrated gene amplification or polyploidy (p < 0.001). Gene amplification was demonstrated in all HercepTest 3+ scoring NSCLC cases. Unlike breast cancer, gene amplification and HER2 protein over‐expression assessed by the HercepTest appeared to be uncommon in NSCLC. Herceptin may therefore target only a small proportion of NSCLC tumours and be of limited clinical value in this disease, particularly in the adjuvant setting. © 2001 Wiley‐Liss, Inc.
Preliminary Research on Self-Regulated Learning and Learning Logs in a Ubiquitus Learning Environment

This preliminary research investigates the relationship between psychometric data and learning behaviors in the learning analytics research field, specifically, the relationship between self-regulated learning and learning behavior. The results of this limited research show that marker and annotation use have a weak significant relationship with self-efficacy and the intrinsic value of learning materials.
Development of a four-stage x-ray telescope for DIOS mission

The DIOS, Diffuse Intergalactic Oxygen Surveyor mission, is planned to observe diffuse soft X-rays, which might originate from warm-hot intergalactic medium as a target of missing baryon and as a probe of dark matter. To observe very weak diffuse soft X-rays, the FXT, four-stage X- ray telescope, is specially designed to have wide field of view and large effective area for the small satellite DIOS. It is confirmed that FXT meets basic requirements of the DIOS mission based on the ray tracing analysis. Al-foil based epoxy replication method is applied to the fabrication of element mirror of the FXT. Several tens of foil mirrors were fabricated and measured their performance. Mirror material combination was also reviewed from the view point of line observation other than oxygen.
Congestion management using improved inertia weight particle swarm optimization

A congestion management approach in a deregulated electricity market using improved inertia weight particle swarm optimisation has been proposed. Firstly, the generator sensitivities are used to select the generators which would take part in the generation rescheduling and then the optimal amount of active power generation rescheduling of these selected generators are found out using improved inertia weight particle swarm optimization technique. The performance of the improved inertia weight particle swarm optimization technique in calculating generation rescheduling cost is also analysed for different values of constraint factor. The proposed methodology has been analysed on IEEE 118-bus system.
Combined simulation technique for design of silicon-based laterally coupled racetrack microring resonators

The microring resonator is a high-performance and low-cost optical waveguide device, suitable for integration with large dimensions. This paper presents the design of laterally coupled racetrack microring resonators working around 1. 55μm, using combinations of the 3D full vectorial film mode matching method, the coupled mode theory and the parameter model. This combined simulation technique shows convenience to perform the design process.
Toward active x-ray telescopes

Future x-ray observatories will require high-resolution (< 1") optics with very-large-aperture (> 25 m2) areas. Even with the next generation of heavy-lift launch vehicles, launch-mass constraints and aperture-area requirements will limit the areal density of the grazing-incidence mirrors to about 1 kg/m2 or less. Achieving sub-arcsecond x-ray imaging with such lightweight mirrors will require excellent mirror surfaces, precise and stable alignment, and exceptional stiffness or deformation compensation. Attaining and maintaining alignment and figure control will likely involve active (in-space adjustable) x-ray optics. In contrast with infrared and visible astronomy, active optics for x-ray astronomy is in its infancy. In the middle of the past decade, two efforts began to advance technologies for adaptive x-ray telescopes: The Smart X-ray Optics (SXO) Basic Technology project in the United Kingdom (UK) and the Generation-X (Gen-X) concept studies in the United States (US). This paper discusses relevant technological issues and summarizes progress toward active x-ray telescopes.
Consolidating requirements analysis models for a crisis management training simulator

This paper presents a requirements model of the activities of the response phase of a crisis management simulator. The model was constructed based on three types of incidents in three different countries, and it derives from extensive requirements elicitations in meetings, field visits and workshops with a broad range of stakeholders from multiple agencies. A second contribution of the paper is the application of work model consolidation and lessons learned therefrom. A third contribution of the paper is an analysis of the similarities and differences of three different crisis management systems in the transport sector in three different European countries.
From space qualified fiber optic gyroscope to generic fiber optic solutions available for space application

The aim of this article is to present how the qualification of the Fiber Optic Gyroscope technology from IXSEA has been achieved through the qualification of a large range of optical devices and related manufacturing processes. These qualified optical devices and processes, that are now fully mastered by IXSEA through vertical integration of the technology, can be used for other space optical sensors. The example of the SWARM project will be discussed.
Indirect control of single-phase active power filters using harmonic control arrays

The ever increase of nonlinear loads in electric distribution networks causes many problems due to the high level of harmonic currents. This paper proposes a new technique for controlling a single phase shunt active power filter based on a selective compensation using the newly developed technique of harmonic control arrays. Simulation results confirm the appropriate selective harmonic compensation performance under different operating conditions.
Sensitivity of the Lambert-Amery glacial system to geothermal heat flux

ABSTRACT Geothermal heat flux (GHF) is one of the key thermal boundary conditions for ice-sheet models. We assess the sensitivity of the Lambert-Amery glacial system in East Antarctica to four different GHF datasets using a regional ice-sheet model. A control solution of the regional model is initialised by minimising the misfit to observations through an optimisation process. The Lambert-Amery glacial system simulation contains temperate ice up to 150 m thick and has an average basal melt of 1.3 mm a−1, with maximum basal melting of 504 mm a−1. The simulations which use a relatively high GHF compared to the control solution increase the volume and area of temperate ice, which causes higher surface velocities at higher elevations, which leads to the advance of the grounding line. The grounding line advance leads to changes in the local flow configuration, which dominates the changes within the glacial system. To investigate the difference in spatial patterns within the geothermal datasets, they were scaled to have the same median value. These scaled GHF simulations showed that the ice flow was most sensitive to the spatial variation in the underlying GHF near the ice divides and on the edges of the ice streams.
Analysis of an application delivery platform for software defined infrastructures

Application service providers ASPs obtaining resources from multiple clouds have to contend with different management and control platforms employed by the cloud service providers CSPs and network service providers NSPs. Distributing applications on multiple clouds has a number of benefits, but absence of a common multi-cloud management platform that would allow ASPs dynamic and real time control over resources across multiple clouds and interconnecting networks makes this task arduous. Open application delivery network OpenADN, a multi-cloud management and control platform, fills this gap. However, performance issues of such a complex, distributed and multi-threaded platform, not tackled appropriately, may neutralise some of the gains accruable to the ASPs. In this paper, we establish the need for and methods of collecting precise and fine-grained behavioural data of OpenADN like platforms that can be used to optimise their behaviour to control operational cost, performance e.g., latency and energy consumption.