Miracle-dz/UniFAR-FTUs huggingface dataset:
Towards Better Concordance among Contextualized Evaluations in FAST-GDM Problems

A flexible attribute-set group decision-making (FAST-GDM) problem consists in finding the most suitable option(s) out of the options under consideration, with a general agreement among a heterogeneous group of experts who can focus on different attributes to evaluate those options. An open challenge in FAST-GDM problems is to design consensus reaching processes (CRPs) by which the participants can perform evaluations with a high level of consensus. To address this challenge, a novel algorithm for reaching consensus is proposed in this paper. By means of the algorithm, called FAST-CR-XMIS, a participant can reconsider his/her evaluations after studying the most influential samples that have been shared by others through contextualized evaluations. Since exchanging those samples may make participants’ understandings more like each other, an increase of the level of consensus is expected. A simulation of a CRP where contextualized evaluations of newswire stories are characterized as augmented intuitionistic fuzzy sets (AIFS) shows how FAST-CR-XMIS can increase the level of consensus among the participants during the CRP.
Sleep Disturbances and Physical Impairment: A Systematic Review and Meta-Analysis

Abstract Objectives This research intends to address the relationship between sleep disturbances and physical impairment using systematic review and meta-analysis methods. Method The study design was a systematic review and meta-analysis. The search was limited to the articles published in English and available online until July 2019. The odds ratio and the lower and upper confidence intervals were converted into logarithms, and then the standard error was calculated. Result The total number of participants in the meta-analysis was 581,945. Sleep disturbances are associated with physical impairment, and this odds ratio (OR) is equal to 1.33 and the confidence interval (CI) is 1.19–1.48 (P < 0.001). In prospective cohort studies, the results are equal to OR = 1.40 and CI = 1.24–1.58 (P < 0.001), and in cross-sectional OR was 1.26 and 1.08–1.47 (P = 0.004). Discussion Sleep disturbances are associated with physical impairment. Therefore, improving sleep is associated with better Mobility, ADL, and IADL.
Financial Development on Employment Rate in Nigeria

This study examines financial development on employment rate in Nigeria on the premise of goal 8 of the sustainable development goals (SDGs). Using the ARDL model and annualized time-series data from 1999-2019. Findings revealed a positive and statistically significant impact of financial development on employment rate. Supporting the Phillips curve of an inverse nexus between inflation rate and unemployment rate. The findings contravene Okun’s law of a negative relationship between economic growth and unemployment rate. The study recommences a policy framework to influence the operational and business activities of financial institutions to stir employment generation and economic growth in Nigeria.
Measurements and Computations of Internal Temperatures of the IGBT and the Diode Situated in the Common Case

This article proposes effective methods of measurements and computations of internal temperature of the dies of the Insulted Gate Bipolar Transistor (IGBT) and the diode mounted in the common case. The nonlinear compact thermal model of the considered device is proposed. This model takes into account both self-heating phenomena in both dies and mutual thermal couplings between them. In the proposed model, the influence of the device internal temperature on self and transfer thermal resistances is taken into account. Methods of measurements of each self and transfer transient thermal impedances occurring in this model are described and factors influencing the measurement error of these methods are analysed. Some results illustrating thermal properties of the investigated devices including the IGBT and the antiparallel diode in the common case are shown and discussed. Computations illustrating the usefulness of the proposed compact thermal model are presented and compared to the results of measurements. It is proved that differences between internal temperature of both dies included in the TO-247 case can exceed even 15 K.
Causal impact of PSBB and new normal in West Java

Indonesia is one of the countries affected by COVID-19. This disease has spread to all provinces of Indonesia, including West Java. West Java is one of the provinces in Indonesia with the most cases of COVID-19 and becomes one of the epicentres, therefore, the regional government has issued a policy to manage the transmission chain. The guidelines implemented by the government, including social distancing and the Large-Scale Social Restrictions (PSBB). In addition, the implementation of PSBB is expected to disrupt the transmission chain because it is more strictly with more sanctions. After the spread is expected to decrease, the government, then, introduced a New Normal system, in which activities will gradually return to normal, but with strict health protocols. Furthermore, this study will find out whether PSBB and New Normal have a significant impact on daily new cases in West Java. The causal impact analysis will be conducted in this study to showed that the implementation of the PSBB and New Normal system has a significant impact on the increase of daily new cases in West Java. The results obtained indicate that there are significant changes after the PSBB policy changed to the new normal. If the number of cases continues to increase based on the results of this study, it can be implemented, among others, that the West Java Provincial Government can enforce the PSBB in this region.
Negative effect of zinc compounds on hydration kinetics of ordinary Portland cement

Metals and metal containing compounds have significant effect on cement hydration mechanism and kinetics. The recycling of waste materials leads to increase of content of metals in various industrial products and visibly affects properties of the Portland cement. One of the metals that has been known to drastically increase the setting time is zinc. Zinc forms various hydroxyl species with calcium cations. Pore solution thus has lowered concentration of calcium which suppresses formation of portlandite. Due to insufficient concentration of calcium the formation of CSH gel and further hydration of clinker grains is inhibited The aim of this study is to quantify the negative effects of zinc at different concentrations at ambient temperature at 20°C. Isoperibolic calorimetry was used to measure the negative effects of zinc on hydration kinetics of ordinary Portland cement. Zinc was added to the cement in the form of two soluble salts Zn(NO3)2 hydrate, ZnCl2 and a poorly soluble compound ZnO. The concentration of zinc added was chosen between 0.1 and 1 wt. % of clinker. Significant retardation of cement hydration with increasing zinc content was proven.
Women Entrepreneurship and Poverty Alleviation: Understanding the Economic and Socio-cultural Context of the Igbo Women’s Basket Weaving Enterprise in Nigeria

ABSTRACT This study explores the socio-cultural and economic context in which Igbo women’s basket weaving enterprise develops and operates in Nigeria and their beliefs about how entrepreneurial action can alleviate poverty. We conducted a qualitative study of 48 Igbo women entrepreneurs who run local basket weaving enterprise in 16 rural communities of 4 out of the 5 Igbo States (southeast region) of Nigeria, to explore the impact of informal entrepreneurial learning, socio-cultural and economic issues, individual values in business start-ups and development in the cities after post-primary education in an attempt to alleviate poverty in line with Sustainable Development Goal (SDG 1). Focusing on three dominant themes (including socio-cultural and economic issues of the Igbo women basket weaving entrepreneurs, etcetera) from the thematic analysis, we analyze the factors that contribute to understanding the socio-cultural context of the Igbo women’s basket weaving enterprise in Nigeria. Findings provide a framework of the Igbo women entrepreneurs’ poverty alleviation and show evidence of a perspective of entrepreneurship for poverty alleviation that is different from the mainstream entrepreneurship literature on poverty alleviation.
Implementable Self-Learning PID Controller Using Least Mean Square Adaptive Algorithm

More than 95% of the industrial controllers in use today are PID or modified PID controllers. However, the PID is manually tuning to be responsive so that the Process Variable is rapidly and steady moved to track the set point with minimize overshoot and stable output. The paper presents generic teal-time PID controller architecture. The developed architecture is based on the adaption of each of the three controller parameters (PID) to be self- learning using individual least mean square algorithm (LMS). The adaptive PID is verified and compared with the classical PID. The rapid realization of the adaptive PID architecture allows the readily fabrication into a hardware version either ASIC or reconfigurable.
Research on the Non-Magnetic Conductor of a PMSM Based on the Principle of Variable Exciting Magnetic Reluctance

A permanent magnet synchronous motor (PMSM) based on the principle of variable exciting magnetic reluctance (VMRPMSM) is presented. The motor is equipped with symmetrical non-magnetic conductors on both sides of the tangential magnetized permanent magnets (PMs). By placing the non-magnetic conductor (NMC), the magnetic reluctance in the exciting circuit is adjusted, and the flux weakening (FW) of the motor is realized. Hence, the NMC is studied comprehensively. On the basis of introducing the motor structure, the FW principle of this PMSM is described. The shape of the NMC is determined by analyzing and calculating the electromagnetic force (EF) acting on the PMs. We calculate the magnetic reluctance of the NMC and research on the effects of the NMC on electromagnetic force, d-axis and q-axis inductance and FW performance. The critical speeds from the test of the no-load back electromotive force (EMF) verify the correctness of the NMC design. The analysis is corresponding to the test result which lays the foundation of design for this kind of new PMSM.
Effects of Crop Protection Unmanned Aerial System Flight Speed, Height on Effective Spraying Width, Droplet Deposition and Penetration Rate, and Control Effect Analysis on Wheat Aphids, Powdery Mildew, and Head Blight

As a new type of crop protection machinery, the Crop Protection Unmanned Aerial System (CPUAS) has developed rapidly and been widely used in China; currently, how to use the CPUAS scientifically has become a top priority. However, the relationships between the operating parameters of the CPUAS and the effective spraying width (ESW), droplet distribution characteristics, and control effects of insect pests and diseases are not clear yet. Therefore, three levels of flight speed (FS) as 3, 4, and 5 m/s, three levels of flight height (FH) as 1.5, 2.0, and 2.5 m, and spraying volume 2.0 L/min experiments were carried out to investigate the effects of FS and FH on the ESW, droplet deposition uniformity (DDU), and droplet penetration rate (DPR) by using an electric single-rotor CPUAS CE20. Based on the obtained results, combined with the insect pests and diseases occurrence agronomic laws, the optimal operation parameters of the CPUAS were selected to control the wheat aphids, powdery mildew, and head blight. The results showed that the ESW of CE20 was not consistent, the maximum value was 5.78 m, and the minimum one was 2.51 m. The FS had a highly significant impact on ESW (p = 0.0033 < 0.01), while the FH and the interaction between FS and FH had no significant impact on ESW. The coefficients of variation (CV) of the droplet deposition were between 23.3% and 34.4%, which meant good deposition uniformity. The FH (p = 0.0019) and the interaction between FS and FH (p = 0.02) had significant impacts on the DDU. The control effects on aphids were 78.71% (1 day), 84.88% (3 days), and 90.42% (7 days), the control effects on powdery mildew were 77.17% (7 days) and 82.83% (14 days), and the control effect on head blight was 88.32% (20 days). This study proved that by the optimization of parameters and the combination of agronomy, good control effects for insect pests and diseases could be achieved by the CPUAS. The research results would provide some technical supports for CPUAS application.
Addressing the Need to Use Psychological Tests in the Field of Dermatology

Dermatological patients’ psychological difficulties are one of the many challenges that dermatologists face in their everyday practice. The use of psychological assessment can benefit dermatologists to detect vulnerable patients who lack the opportunity to be referred to mental health professionals. For this reason, if dermatologists collaborate more frequently with clinical health psychologists, dermatological patients would be properly assessed. This would lead to the creation of psychodermatology units in which patients' emotional difficulties can be treated holistically.
Study on synchronous detection method of methane and ethane with laser absorption spectroscopy technology

The main ingredient of mash gas is alkenes, and methane is the most parts of mash gas and ethane is a small portion of it. Fast, accurate, real-time measurement of methane and ethane concentration is an important task for preventing coal mining disaster. In this research, a monitoring system with tunable diode laser absorption spectroscopy (TDLAS) technology has been set up for simultaneous measurement of methane and ethane, and a DFB laser at wavelength of 1. 653μm was used as the laser source. The absorption spectroscopy information of methane and ethane, especially the characteristic of the spectrum peak positions and relative intensity were determined by available spectral structures from previous study and available database. Then, the concentration inversion algorithm method based on the spectral resolution and feature extraction was designed for methane and ethane synchronous detection. At last, the continuously experimental results obtained by different concentration of methane and ethane sample gases with the multiple reflection cell and the standard distribution system. In this experiment, the standard distribution system made with the standard gas and two high precision mass flow meters of D07 Sevenstar series whose flow velocity is 1l/min and 5l/min respectively. When the multiple reflection cell work stably, the biggest detection error of methane concentration inversion was 3.7%, and the biggest detection error of ethane was 4.8%. So it is verified that this concentration inversion algorithm works stably and reliably. Thus, this technology could realize the real-time, fast and continuous measurement requirement of mash gas and it will provide the effective technical support to coal mining production in safety for our country.
Toward Atmospheric Electricity Research: A Low-Cost, Highly Sensitive and Robust Balloon-Borne Electric Field Sounding Sensor

High-altitude electric fields are a critical parameter of electricity in the atmosphere. Due to such drawbacks as their bulk and high cost, traditional electric field mills are not available for daily atmospheric sounding purposes. This paper introduces a highly sensitive and robust electric field sounding sensor based on an existent micro-electro-mechanical systems chip and a new protective package that augments sensor sensitivity. To gain high sensitivity, an innovative external metal electrode connects to the electric field microchip’s package cap, hangs down out of the guardian foam, and effectively enhances the local electric field near the microchip due to the distortion effect. This distortion regularity was studied during a series of finite element simulations, calibrations, and comparison experiments. With a 1.5-meter-long external electrode, the sensitivity of the sensor reached 465 mV/kV/m with a resolution that was better than 10 V/m in an actual long-term ground comparison test. Furthermore, the microsensor chip and its circuit are protected inside a foam while the metal electrode is exposed outside, therefore gaining a robust stability during harsh environments such as low temperature, rainfall, etc. To examine the performances, we built an electric field sounding system, including the electric field sensor, a radiosonde, and a receiving antenna, and measured high-altitude electric fields in various weather conditions. Intended for atmospheric electricity research, our innovative electric field sounding sensor would be especially propitious if integrated with a radiosonde and applicable to daily sounding services.
Removal of turbidity and chemical oxygen demand using an eco-friendly coagulant/flocculent (optimization and modelling through the response surface methodology)

The use of the cactus mucilage as a bio-coagulant/bio-flocculent in the treatment of wastewater is a real strategy for sustainable development of the environment, because of its abundance and the non-toxicity for the human health. In this research, the biomaterial was used to treat municipal wastewater plant by coagulation/flocculation process. To optimize two most important factors: dosage coagulant and initial pH, a central composite faced centered design, and response surface methodology were applied. The effect of the pH on the supernatant turbidity removal and the chemical oxygen demand (COD) reduction was very significant, whereas the coagulant dosage was insignificant on the COD removal efficiency, there is no interaction effect between coagulant dosage and initial pH on the responses studied. Experimental results revealed that the maximum reduction of turbidity and COD could be attained at optimal conditions, that is, coagulant dosage of 5.6 mL/L–1 and pH of 12 from which the removal of turbidity and COD were 99.39% and 80.03%, respectively. The study also showed that the quadratic regression model could be used as theoretical basis for coagulation/ flocculation process of wastewater treatment based on the high coefficient of determination R2 value of 0.93 obtained from the analysis of variances.
Mathematical framework for 5G‐UAV relay

Unmanned aerial vehicle's (UAVs) small size, long‐lasting battery, and flexible trajectory have produced widespread applications in radio communication systems, especially its usage as a cellular tower (gNB) for 5G services. At the same time, the mmWave's enormous available bandwidth makes it the primary contender for next‐generation communication networks. This article aims to synthesize and assess the usage of mmWave concurrently in backhaul and access links for amplify‐and‐forward (AF) relay installed on the UAV. A mathematical framework is developed for the received power of the user equipment (UE) obtained in relay path (gNB‐UAV‐UE) and direct path (gNB‐UE) via; (i) free space, and (ii) log‐distance path loss model. The International Telecommunication Union recommended city model is used to assess the likelihood for LoS and NLoS paths in four urban environments; (i) high‐rise urban, (ii) dense urban, (iii) urban, and (iv) suburban. Furthermore, various parameters, that is, UAV's position and amplification factor are stipulated to optimize the efficiency of a UAV‐based AF relay for enhanced users coverage.
Bestimmung der lokalen Flüssigkeitsfilmdicke bei der turbulenten, separierten Zweiphasenströmung gasförmig/flüssig in geneigten Rohren

The determination of the liquid-holdup on the base of the measurement of local film thickness is a special point of interest in connection with modelling hydrodynamics and heat and mass transfer of adiabatic and non-adiabatic separated two-phase flows. A new method of determination is performed by the application of the ultrasonic-recall princip. The local film thickness is calculated by the product of the sonic velocity in the liquid and the half of the run-time of the ultrasonic impuls in the liquid phase. Several reasons made the method to a useful instrument for experimental studies: (1) there is no contact between the sensor and the two-phase flow; (2) the calibration of the experimental apparatus is unnecessary if the sonic velocity of the liquid is known; (3) very small values of film thickness are measurable; (4) statistical/stochastical description of the moved surface are possible; and (5) the knowledge of special properties of the liquid phase are not necessary. Distributions of film thicknesses were measured under several flow conditions of the phases and several inclinations of the tube.
Study on the Performance of Liquid Metal Lubricated V-Groove Bearing Considering Turbulence

To study the application of liquid metal (LM) in the field of practical lubrication, the viscosity of gallium based liquid metal (GBLM) was measured initially, and the relationship between viscosity and temperature was fitted to obtain the viscosity under high temperature. Under the simulated high temperature and vacuum working environment of computed tomography tube (CTT) machines, considering the influence of turbulence, the changes, with eccentricity, of bearing capacity, discharge, friction power consumption, temperature rise, stiffness, and critical mass of the GBLM lubricated V-groove bearing (V-g B) were analyzed. Due to the special structure of V-g B, the coordinate transformation was carried out and the turbulent Reynolds equation was solved by using the finite difference method and the local integral method. The bearing film thickness and pressure distribution under the two coordinate systems were analyzed and compared and the pressure distribution of V-g B under small eccentricity and large eccentricity was studied, respectively. The performance of GBLM lubricated V-g B was studied, which provides theoretical guidance and an analytical method for LM bearing of high-performance CT equipment.
‘We Were all Italian!’: The construction of a ‘sense of Italianness’ among Jews from Libya (1920s–1960s)

ABSTRACT The paper explores how a ‘sense of Italianness’ formed among Jews in Libya during the Italian colonial period and in the decades following its formal end. Based on interviews with Jews born in Libya to different generations and currently living in Israel and Europe, the essay considers the concrete declensions of this socio-cultural phenomenon and the different meanings that the respondents ascribe to it. Meanings span from the macro level of historical events and societal changes, to the micro level of individual social relations and material culture. Viewed across generations and framed in the peculiarities of Italian colonial history, the ‘sense of Italianness’ expressed by Jews in Libya appears as both a colonial and post-colonial legacy.
Output Regulation of Invertible Nonlinear Systems via Robust Dynamic Feedback-Linearization

In this article, we address a problem of output regulation for a broad class of invertible multi-input–multi-output (MIMO) nonlinear systems. The system that we consider is assumed to possess a globally defined normal form, in which appropriate invertibility conditions are fulfilled, and to be strongly minimum phase. Asymptotic output regulation is achieved by means of a controller consisting of a preprocessing internal model and of a robust stabilizer. For the design of the latter, a recently developed method is proposed, consisting of interlaced design of dynamic extensions and extended observers that provides a robust version of standard stabilization methods based on feedback-linearization. The method does not presume the knowledge of an accurate model of the plant and only needs access to the regulated variables.