Miracle-dz/UniFAR-FTUs huggingface dataset:
Nonlinear impedance of a microwave-driven Josephson junction with noise

The nonlinear impedance of a point Josephson junction is calculated under various conditions for the resistively shunted junction model in the presence of noise. The calculation proceeds by solving the Langevin equation for the mechanical problem of a Brownian particle in a tilted cosine potential in the presence of a strong ac force ignoring inertial effects. The exact solution of the infinite hierarchy of equations for the moments (expectation values of the Fourier components of the phase angle), which describe the dynamics of the junction, is expressed in terms of a matrix continued fraction. This solution allows one to evaluate the nonlinear response of the junction (nonlinear microwave impedance, for example) to an ac microwave current of arbitrary amplitude. Strong nonlinear effects in the resistance and the reactance are observed for large ac currents as is demonstrated by plotting the nonlinear response characteristics as a function of the model parameters. For weak ac currents and low noise strengths, our results agree closely with previously available linear response and nonlinear response noiseless solutions, respectively. Applications of the model to the interpretation of recent experimental data found in the literature for the nonlinear behavior of microwave impedance of superconducting weak links are discussed.
Generalized Software Security Framework

Security of information has become a major concern in today's digitized world. As a result, effective techniques to secure information are required. The most effective way is to incorporate security in the development process itself thereby resulting into secured product. In this paper, we propose a framework that enables security to be included in the software development process. The framework consists of three layers namely; control layer, aspect layer and development layer. The control layer illustrates the managerial control of the entire software development process with the help of governance whereas aspect layer recognizes the security mechanisms that can be incorporated during the software development to identify the various security features. The development layer helps to integrate the various security aspects as well as the controls identified in the above layers during the development process. The layers are further verified by a survey amongst the IT professionals. The professionals concluded that the developed framework is easy to use due to its layered architecture and, can be customized for various types of softwares.
Estimating the Underground Economy using MIMIC Models

MIMIC models are being used to estimate the size of the underground economy or the tax gap in various countries. In this paper, I examine critically both the method in general, and three applications of the method by Giles and Tedds (2002), Bajada and Schneider (2005) and Dell’Anno and Schneider (2003). Connections are shown with familiar econometric models of linear regression and simultaneous equations. I also investigate the auxiliary procedures used in this literature, including differencing as a treatment for unit roots and the calibration of results using other data. The three applications demonstrate how the method is subjective and pliable in practice. I conclude that the MIMIC method is unfit for the purpose.
Development of an urban typology to assess residential environmental performance at the city scale

In this research, a typology of urban blocks is drawn up for the urban area of Liege. This typology of urban blocks is organized into a set of themes according to various environmental parameters. This paper presents the energy part of this typology on the residential building stock of Liege, which includes four topics: residential buildings energy consumption; transport energy consumption of residents; development potentialities of public transport and development potentialities of energy networks. The proposed typology was elaborated through the use of GIS tools combined with a statistical treatment of several specific criteria at the urban block scale. For each class of this typology, a representative block is selected for further energy simulations in order to model residential energy use related to buildings, transport and energy networks at the city scale. The methodology developed in this paper is adapted to urban, suburban and rural zones. It can thus be adapted and/or reproduced on many other territories in Belgium but also in Europe or even further.
Effects of compaction prressure on lead zirconate titanate piezoelectric and dielectric properties prepared via high planetary mill

Lead Zirconate Titanate (PZT) had previously been used as actuators and sensors in electronic application due to its remarkable piezoelectric properties. The main obstacle in the PZT syntheses through solid state sintering is the lost of substantial amount of PbO due to vaporation that accompanied high firing temperature. Elimination of the calcination step and alternative method of treatment could be of a great help. Thus, an investigation of the lead (Pb) Zirconate Titanate PZT properties (piezoelectric and dielectric) synthesized via solid-state reaction by varying compaction pressure (100-300 MPa) was conducted. Compaction pressure that was beneficial to the physical properties of PZT-based ceramic and also effectively improved the dielectric and piezoelectric properties of the PZT ceramics. Optimum average grain size was found to be a very important factor in determining the alignment of the d33 particle size value influence and the dielectric constant of PZT. Therefore, the optimum compaction pressure (200 MPa) played an important role in optimizing the sintering temperature. This also enhanced/improved the piezoelectric and dielectric properties of PZT.
MULTI-EPOCH VERY LONG BASELINE INTERFEROMETRIC OBSERVATIONS OF THE NUCLEAR STARBURST REGION OF NGC 253: IMPROVED MODELING OF THE SUPERNOVA AND STAR FORMATION RATES

The results of multi-epoch observations of the southern starburst galaxy, NGC 253, with the Australian Long Baseline Array at 2.3 GHz are presented. As with previous radio interferometric observations of this galaxy, no new sources were discovered. By combining the results of this survey with Very Large Array observations at higher frequencies from the literature, spectra were derived and a free–free absorption model was fitted of 20 known sources in NGC 253. The results were found to be consistent with previous studies. The supernova remnant, 5.48-43.3, was imaged with the highest sensitivity and resolution to date, revealing a two-lobed morphology. Comparisons with previous observations of similar resolution give an upper limit of 104 km s−1 for the expansion speed of this remnant. We derive a supernova rate of <0.2 yr−1 for the inner 300 pc using a model that improves on previous methods by incorporating an improved radio supernova peak luminosity distribution and by making use of multi-wavelength radio data spanning 21 yr. A star formation rate of SFR(M ⩾ 5 M☉) < 4.9 M☉ yr−1 was also estimated using the standard relation between supernova and star formation rates. Our improved estimates of supernova and star formation rates are consistent with studies at other wavelengths. The results of our study point to the possible existence of a small population of undetected supernova remnants, suggesting a low rate of radio supernova production in NGC 253.
OF THE SPECIFICITY OF THE WISCONSIN CARD SORTING TEST FOR THE ASSESSMENT OF PREFRONTAL FUNCTION Summary

El test de clasificación de cartas de Wisconsin (WCST, del inglés Wisconsin Card Sorting Test) fue ideado en 1948 por Grant y Berg [1] para evaluar la capacidad de abstracción, la formación de conceptos y el cambio de estrategias cognitivas en respuesta a cambios en las contingencias ambientales. Años después, el trabajo de Milner [2] contribuyó de forma decisiva a establecer el WCST como la prueba por antonomasia para evaluar las alteraciones en el control ejecutivo de la atención resultantes de lesiones en el lóbulo frontal [3-7]. Actualmente, existen dos formas de administración y corrección del WCST: la versión estándar de Grant y Berg [1], a la que se aplican los criterios de corrección de Milner [2], y la versión abreviada de Heaton [8]. Además, se han realizado modificaciones de la prueba, entre las que destacan por ser más conocidas el Modified Card Sorting Test (MCST) de Nelson [9] y el California Card Sorting Test (CCST) [10]. Ambas adaptaciones simplifican la complejidad del original y reducen la ambigüedad inherente a la corrección, con el objeto de aislar déficit cognitivos específicos relacionados con los diferentes tipos de error. Varios estudios clásicos descubrieron que la ejecución del WCST resulta especialmente deteriorada por las lesiones del lóbulo frontal [2,9,11-13]. Sin embargo, en la actualidad, muchos autores cuestionan la sensibilidad y la especificidad del test A CRITICAL REVIEW OF THE SPECIFICITY OF THE WISCONSIN CARD SORTING TEST FOR THE ASSESSMENT OF PREFRONTAL FUNCTION
The Use, Evolution and Lessons Learnt of Deployable Static Solar Array Mechanisms

This paper focuses on the mechanisms incorporated into SSTL's static deployable arrays; namely the sprung-hinges and hold down and release mechanism (HDRM). Combined, the HDRM and hinges form the hold down release system (HDRS). The deployable static solar array HDRS has been successfully used on several missions, first launched upon the DMC-CFESAT spacecraft in 2007 for a U.S. customer (Figure 1), and later used on DMC-UK2 and EXACTVIEW-1 launched in 2009 and 2012, respectively. The simple, robust and low-cost solution HDRS has been evident in allowing missions to satisfy an everincreasing power demand, allowing the solar arrays to increase in size and have a preferable sun angle for increased cell efficiency. The system is now being employed on the first mission out of SSTL’s U.S. office (SST-US) on the Orbital Test Bed platform. This paper shall cover details of the original design and development program, problems incurred on latter missions, and evolution of the HDRS for the present Orbital Test Bed mission. Both the original development and recent evolutions have taken place in rapid timescales, to satisfy the high-turnaround of SSTL missions. Figure 1. DMC-CFESAT platform with deployable solar panels partially deployed (Ph. Credit LeRoy N. Sanchez94)
RESEARCHING FOR THE SAMPLING METHOD ON CMM

Accurate dimensional inspection and error analysis of free-form surfaces requires accurate registration of the component in hand. Registration of surfaces defined as non-uniform rational B-splines (NURBS) has been realized through an implementation of the iterative closest point method (ICP). The paper presents performance analysis of the ICP registration method using Monte Carlo simulation. A large number of simulations were performed on an example of a precision engineering component, an aero-engine turbine blade, which was judged to possess a useful combination of geometric characteristics such that the results of the analysis had generic significance. Data sets were obtained through CAD (computer aided design)-based inspection. Confidence intervals for estimated transformation parameters, maximum error between a measured point and the nominal surface (which is extremely important for inspection) mean error and several other performance criteria are presented. The influence of shape, number of measured points, measurement noise and some less obvious, but not less important, factors affecting confidence intervals are identified through statistical analysis.
Automatic Twining Direction Recognition of Lockwire on Engine

Lockwires are often used as mechanical locking components for bolts on an engine. Inspecting its twining direction relative to the bolt is vital for ensuring an engine runs normally. However, the dominant manual inspection method is inefficient and limited by the professional skills of the inspector. In this paper, we propose a method that can be used to automatically determine the twining direction of a lockwire. First, a coarse-to-fine scheme for localizing the bolt is designed. Then, rough segmentation regions of the lockwire are acquired by a novel elongated shape descriptor. The entire area containing the lockwire can be obtained by connecting images from segmentation regions. An innovative skeleton tree and texture-based selection strategy are used to extract the lockwire centerline. An efficient vector fitting approach is proposed for computing the extension direction of the centerline. As a result, the twining direction can be identified via the extension direction and the bolt’s position. The experimental results show that our method is very effective in determining the twining direction of a lockwire, with an accuracy reaching 95%. In addition, the results also show that our method can deal with low-quality images of lockwires at different angles.
TIME DEPENDENT HADRONIC MODELING OF FLAT SPECTRUM RADIO QUASARS

We introduce a new time-dependent lepto-hadronic model for blazar emission that takes into account the radiation emitted by secondary particles, such as pions and muons, from photo hadronic interactions. Starting from a baseline parameter set guided by a fit to the spectral energy distribution of the blazar 3C 279, we perform a parameter study to investigate the effects of perturbations of the input parameters to mimic different flaring events to study the resulting light curves in the optical, X-ray, high-energy (HE: E > 100 ? > MeV), and very-high-energy ( E > 100 GeV ) ? > γ-rays as well as the neutrino emission associated with charged-pion and muon decay. We find that flaring events from an increase in the efficiency of Fermi II acceleration will produce a positive correlation between all bandpasses and a marked plateau in the HE γ-ray lightcurve. We also predict a distinctive dip in the HE lightcurve for perturbations caused by a change in the proton injection spectral index. These plateaus/dips could be a tell tale signature of hadronic models for perturbations that lead to more efficient acceleration of high-energy protons in parameter regimes where pion and muon synchrotron emission is non-negligible.
A Structural Model Predicting Arab American's Attitudes towards Mental Health Services from Ethnic Identity, Acculturation, and Spirituality

Objective: The present study was based on the Multicultural Assessment-Intervention Process (MAIP) framework and examined the effects of acculturation, ethnic identity, and spirituality on Arab American mental health service utilization attitudes. Methods: Based on a convenience sample of 298 Arab American adults, a structural model was configured with ethnic identity directly predicting both Heritage and Mainstream Acculturation. Each of these was proposed to both directly predict the willingness to seek psychological services as well as indirectly through spirituality. Results: The results showed that greater levels of ethnic identity were associated with more acculturation for both the heritage and mainstream domains. In turn, greater levels of both heritage and mainstream acculturation stategies were predictive of higher levels of individuals being more receptive to seeking psychological help. However, spirituality did not appear to be related to the willingness to seek psychological services. Conclusions: It appeared that Arab American mental health help-seeking attitudes were predicted by ethnocultural variables as generally described by the MAIP model. Implications for future Arab American research were discussed. will first utilize a variety of community ethnic Arab traditional healing resources prior to seeking help from the behavioral healthcare system [6]. Arab American traditional healers tend to take an active personal role in guiding, instructing, and suggesting courses of action, including engagement of family authorities as opposed to more formalized and detached mental health treatment [7]. Several advantages of traditional healing systems over formal behavioral health services include: nonstigmatizing cultural practices, management of counter-transference issues, community and familial collaborations, and using culturally based idioms of distress [6]. Challenges to traditional healing methods are that many of these religious leaders may not be qualified or sufficiently knowledgeable to provide mental health services [6]. Recent empirical evidences [8] suggest that both Christian and Muslim Arab Americans prefer religious leaders to mainstream community mental health services. Challenges to Arab American help-seeking processes include Arab social norms concerning family orientation and fatalism, and views about mental health social stigma and disclosure. For example, Arab American families often provide a form of collective social support and may even serve as a proxy for professional intervention services [6] Mental health help-seeking may also be influenced by a religious
Negation in dialogue

We consider the nature of negation in dialogue as revealed by semantic phenomena such as negative dialogue particles, psycholinguistic experimentation, and dialogue corpora. We examine alternative accounts of negation that can be used in TTR (Type Theory with Records), and conclude that an alternativesbased account which relates to the psychological notion of negation in simulation semantics is most appropriate. We show how this account relates to questions under discussion, dialogical relevance, and metalinguistic negation.
Treatment of children obesity and diabetes through gamification: a case of study

Childhood obesity is nowadays a global epidemic. This illness sometimes comes with another associated problem, like Diabetes type II. In this paper we present a case of study about the results of the application of a gamified educational program. A 3-year longitudinal and prospective study was conducted a patient with obesity and diabetes. Different assessments regarding the health state of the patient have been developed (family background, physical/medical, emotional state and physical activity). Using Positive outcomes have been obtained in their medical registers and also, in their health habits. Thus, the application of gamification strategies in the educational program has positive impact in the health.
Improvement of Semen Parameters in a Man With Idiopathic Severe Oligoasthenoteratozoospermia Using Date Palm Pollen (Phoenix dactylifera L.) Based on Iranian Traditional Medicine: A Case Report and Literature Preview

Introduction: Almost 50% of infertilities are associated with males and among them 30to 50% are idiopathic. Empirical treatments are used in idiopathic male infertility, yet not enough scientific evidence is available for the application of such remedies. Date palm pollen (DPP) is one of the drugs suggested for such patients in Iranian traditional medicine (ITM). Case Presentation: This study was performed on a 35-year-old male patient with idiopathic infertility. He previously had severe oligoasthenoteratozoospermia and was under medical supervision at Yas hospital of the Tehran University of Medical Sciences, Tehran, Iran from August 2016 to February 2017, where he was treated with DPP at a dose of 3 g twice daily, for three months. The second semen analysis was carried out after a quarter of the treatment period, followed by re-analyses after one and three months of finalizing the treatment period. The results obtained showed an impressive improvement in the quality of semen parameters. Within six months, the initial values of normal morphology (1%), total motility (3%), progressive motility (0.0), and sperm concentration (0.1 million) increased to 20%, 60%, 10%, and 10 million, respectively. Conclusions: Date palm pollen could be helpful in improving semen parameters in such patients. Clinical studies are required to find the exact effect.
Research on Electromagnetic Positioning Calibration Technology Based on Kriging Interpolation

The electromagnetic positioning system is a system that uses the spatial magnetic field strength to obtain the position and direction angle of the receiving sensor in real time, and is widely used in virtual reality and medical navigation. Due to its inherent characteristics, the electromagnetic positioning system receiving sensor is easy to lost the accuracy and stability of its positioning and tracking results due to external interference, resulting in a large positioning error, so the calibration work is very important for it. In this paper, the spatial sampling points are divided into tetrahedrons by Delaunay triangulation to interpolate and the Kriging interpolation algorithm is used to compensate the accuracy. Through experiment and simulation, the position and direction angle accuracy is significantly improved, and it is shown that the performance of proposed method is better than traditional polynomial fitting and traditional interpolation algorithms.
Self-Heating Characterization and Thermal Resistance Modeling in Multitube CNTFETs

The thermal resistance, thermal capacitance, and thermal time constant have been experimentally extracted for the first time for a multi-tube multi-finger carbon nanotube FET (CNTFET) from trap-free high-frequency characteristics by following a methodology based on temperature-dependent two-port network analysis. The extracted short thermal time constant confirms the thermal stability for this emerging technology. A lumped-element electro-thermal model for multi-tube CNTFETs has been developed and proven with experimental data.
Computing and Visualization in Science Regular article A note on B-stability of splitting methods ∗

An important requirement of numerical methods for the integration of nonlinear stiff initial value problems is B-stability. In many applications it is also convenient to use splitting methods to take advantage of the special structure of the differential operator that defines the model. The purpose of this paper is to provide a necessary and sufficient condition for the B-stability of additive Runge–Kutta methods. We also present a family of B-stable fractional step Runge–Kutta methods.
Dual Functional MIMO Antenna System for mm-Wave 5G and 2 GHz 4G Communications

A dual feed tapered slot antenna with multiple-input multiple-output (MIMO) configurations is presented for 4G/5G mobile applications. The proposed MIMO antenna system covers 1.9-2.6 GHz band for 4G and 27-40 GHz band 5G. At 4G band, the structure operates as an open-ended slot antenna (X/4 long at 2.6 GHz) and gives omnidirectional radiation patterns. At the 5G band, it works as a tapered slot antenna (3k long at 28 GHz) and gives a directive beam with end-fire radiation patterns. This dualfunctionality of the tapered slot is unique and attractive to cover multi-bands for dual wireless standards. For geometry modelling of the proposed design, the substrate Rogers RT/duroid 5880 is used with an overall size of 158×77×0.38 mm3 which matches the size of the latest mobile handheld devices.
Effective Numerical Solution to Two-Dimensional Stochastic Neural Field Equations

In this paper, we explore an efficient numerical integration scheme for solving 2D Neural Field Equations(NFEs) in the presence of external stimuli input in both deterministic and stochastic scenarios. The method is based on Galerkin-type spectral approximation and our attention is paid to its efficient implementation because of the partial integro-differential fashion of the NFEs under discussion and two-dimensional spatial domain. The straightforward implementation of the proposed numerical scheme yields a very time consuming method in case of a good spatial resolution. Our efforts are focused on translating the numerical technique into a high-level computer code in MATLAB where the improved efficiency is achieved by vectorizing operations and accessing subarrays via MATLAB’s colon notation. The results of numerical experiments are presented.