Miracle-dz/UniFAR-FTUs huggingface dataset:
Impact of nonlinear surface inflows into activity belts on the solar dynamo

We examine the impact of surface inflows into activity belts on the operation of solar cycle models based on the Babcock–Leighton mechanism of poloidal field regeneration. Towards this end we introduce in the solar cycle model of Lemerle & Charbonneau (2017. ApJ 834: 133) a magnetic flux-dependent variation of the surface meridional flow based on the axisymmetric inflow parameterization developped by Jiang et al. (2010. ApJ 717: 597). The inflow dependence on emerging magnetic flux thus introduces a bona fide nonlinear backreaction mechanism in the dynamo loop. For solar-like inflow speeds, our simulation results indicate a decrease of 10–20% in the strength of the global dipole building up at the end of an activity cycle, in agreement with earlier simulations based on linear surface flux transport models. Our simulations also indicate a significant stabilizing effect on cycle characteristics, in that individual cycle amplitudes in simulations including inflows show less scatter about their mean than in the absence of inflows. Our simulations also demonstrate an enhancement of cross-hemispheric coupling, leading to a significant decrease in hemispheric cycle amplitude asymmetries and temporal lag in hemispheric cycle onset. Analysis of temporally extended simulations also indicate that the presence of inflows increases the probability of cycle shutdown following an unfavorable sequence of emergence events. This results ultimately from the lower threshold nonlinearity built into our solar cycle model, and presumably operating in the sun as well.
Thermophotovoltaic system configurations and spectral control

Thermophotovoltaic (TPV) systems can be characterized by several different parameters including system electrical conversion efficiency, photovoltaic cell electric power density, infrared (IR) emitter temperature and system costs. One way of dividing TPV systems into three categories is via high (T >1400 °C), medium (T between 1400 °C and 1100 °C) and low (T < 1100 °C) IR emitter temperature. In the high T category, silicon cells can be used with porous rare earth oxide selective emitters operating at over 1400 °C. For low T emitters, cells with band gaps below 0.6 eV are being studied. These cells are typically made with ternary and quaternary compounds using MOCVD. They are being developed for space and military applications where these cells operate at temperatures of 30 °C and below. These systems can potentially have efficiencies over 15%. Diffused junction GaSb cells can be used with IR emitters in the mid-temperature range. These cells can potentially be made at low cost in high-volume production. With emitter temperatures of 1250 °C, these cells operate with power densities of 1 W cm−2. These cells can be operated at 60 °C for combined heat and power applications. Systems using these cells can have electrical conversion efficiencies well over 10%. Spectral control is another important parameter characterizing TPV system configurations. While various means of high efficiency spectral control for low- and mid-temperature systems have now been demonstrated with single-cell experiments, the frontier now lies in integrating cell arrays, heat sources and IR emitters with spectral control into complete systems.
Emerging miniaturized energy storage devices for microsystem applications: from design to integration

The rapid progress of micro/nanoelectronic systems and miniaturized portable devices has tremendously increased the urgent demands for miniaturized and integrated power supplies. Miniaturized energy storage devices (MESDs), with their excellent properties and additional intelligent functions, are considered to be the preferable energy supplies for uninterrupted powering of microsystems. In this review, we aim to provide a comprehensive overview of the background, fundamentals, device configurations, manufacturing processes, and typical applications of MESDs, including their recent advances. Particular attention is paid to advanced device configurations, such as two-dimensional (2D) stacked, 2D planar interdigital, 2D arbitrary-shaped, three-dimensional planar, and wire-shaped structures, and their corresponding manufacturing strategies, such as printing, scribing, and masking techniques. Additionally, recent developments in MESDs, including microbatteries and microsupercapacitors, as well as microhybrid metal ion capacitors, are systematically summarized. A series of on-chip microsystems, created by integrating functional MESDs, are also highlighted. Finally, the remaining challenges and future research scope on MESDs are discussed.
A teams approach towards job insecurity, perceived organisational support and cooperative norms: a moderated-mediation study of individual wellbeing

Abstract Mental health is important to individuals, employers, and HR Professionals. The present study explores how teams can influence individual wellbeing. We use team-level job insecurity as an antecedent and team-level perceived organisational support (POS) climate as a mediator. In addition, we explore team-level cooperative team norms as a moderator within our study model. We expect teams that share job insecurities to have a lower POS, which ultimately predicts wellbeing, with cooperative team norms buffering these effects. Surveying employee teams within New Zealand, using a sample of 313 New Zealand employees (121 teams, with 2–4 people in each team), and multi-level modelling, we find support that job insecurity is positively related to anxiety and depression, as well as negatively related to POS climate. POS climate mediates the insecurity effects towards anxiety and depression, while cooperative team norms buffer the effects of high job insecurity towards anxiety but not depression. Moderated-mediation effects show the indirect effect of insecurity strengthens as norms do. The implications for organisations and HR are discussed.
Improvement of the chemical properties of waste rock deposits at the Agbaou gold mine by the legume Pueraria phasoeloïdes (Center-west Côte d'Ivoire)

Objective: To assess the effects of the legume (Pueraria phasoeloides) on the chemical parameters of the waste rock soils (saprolites) at the Agbaou gold mine, in the center-west of Cote d’Ivoire. Methodology and results: Soil samples were taken using the systematic sampling method at regular intervals of 20 m on the ramps and at 20 cm soil depth, using an auger during two consecutive sampling campaigns (2016-2017 and 2017-2018). The geometric coordinates of the sampling points were obtained using a GPS Garming CSX60 type. A total of 20 composite samples were made from 80 collected soil samples. Chemical analyzes were carried out on soil samples obtained. The results show that the contents of total organic carbon (TOC), total organic nitrogen (Nt), the C: N ratio and the pH values of the soils, under Pueraria phaseoloides legume were significantly improved between the ramps and between the two campaigns (p
Modeled Microbial Dynamics Explain the Apparent Temperature Sensitivity of Wetland Methane Emissions

Methane emissions from natural wetlands tend to increase with temperature and therefore may lead to a positive feedback under future climate change. However, their temperature response includes confounding factors and appears to differ on different time scales. Observed methane emissions depend strongly on temperature on a seasonal basis, but if the annual mean emissions are compared between sites, there is only a small temperature effect. We hypothesize that microbial dynamics are a major driver of the seasonal cycle and that they can explain this apparent discrepancy. We introduce a relatively simple model of methanogenic growth and dormancy into a wetland methane scheme that is used in an Earth system model. We show that this addition is sufficient to reproduce the observed seasonal dynamics of methane emissions in fully saturated wetland sites, at the same time as reproducing the annual mean emissions. We find that a more complex scheme used in recent Earth system models does not add predictive power. The sites used span a range of climatic conditions, with the majority in high latitudes. The difference in apparent temperature sensitivity seasonally versus spatially cannot be recreated by the non‐microbial schemes tested. We therefore conclude that microbial dynamics are a strong candidate to be driving the seasonal cycle of wetland methane emissions. We quantify longer‐term temperature sensitivity using this scheme and show that it gives approximately a 12% increase in emissions per degree of warming globally. This is in addition to any hydrological changes, which could also impact future methane emissions.
Mathematical Model for Approximation the Efficiency of Parallel Computing on Single Board Cluster with Least-squares Approximation

This research aims to study the relationship between parallel processing efficiency and several nodes on a single board cluster using a mathematical model, approximating least squares. This research tested on the Raspberry Pi single-board in the form of a high-performance computing system. It divided the tasks that need to be processed in each particular part and sent it to each unit to process simultaneously via the MPI (Messaging Passing Interface). This process is the standard division of work with communication between processors in the form of messages on the cluster system. It consists of eight nodes of Raspberry Pi. It measures the instruction set's ability to perform decimal operations per second or Floating-point Operation Per Second (FLOPS) with High-Performance Linpack Benchmarks (HPL). As a result, the efficiency of the ability to process instruction set in decimal per second increases the performance continuously when increasing the number of the node on the cluster. Which corresponds to the mathematical model obtained f(x) = 1.0684x^(0.8256). It shows a relationship between parallel processing performance values and the number of nodes on the cluster and can be estimated with the mathematical model above.
Announcement Effects of Convertible and Warrant Bond Issues with Embedded Refixing Option: Evidence from Korea

This study examines the announcement effects of convertible and warrant bond issues with embedded refixing option in Korea from January 2001 to December 2018. Refixing option denotes an adjustment right of the conversion price embedded in equity-linked debt when the underlying stock price falls under conversion price. I find statistically significant declines of 2.6 to 2.7 percentage points in cumulative abnormal returns for the inclusion of a refixing clause and especially further declines of 6.2 to 6.3 percentage points during the period from 2016 to 2018. This result implies that the market’s concerns about the dilution of existing shareholder value due to the exercise of the refixing rights are reflected in the market response. I further find that the degree of negative market response varies according to the changes in macroeconomic conditions and the stock exchange on which the issuing firms are listed. The findings are robust after controlling for the effect of firm-, issue-, and market-specific characteristics.
Flypaper Effect Analysis on Regional Expenditure in East Java Province, Indonesia

This study aims to analyze the possibility of a flypaper effect on district and city regional spending in East Java Province, Indonesia. In this study the General Allocation Fund (DAU), Revenue Sharing Fund (DBH), and Local Own Revenue (PAD) are used as independent variables, and Regional Expenditures as the dependent variable used through panel data regression analysis. The results showed that in general from 38 districts and cities in East Java Province in 2011-2018 there was a proven flypaper effect. While DAU, DBH, and PAD have proven to have significant and positive effects on Regional Expenditures.
Direcionadores para o Desenvolvimento Baseado em Modelos de Software Embarcado Aeronáutico

O Desenvolvimento Baseado em Modelos (MBD, Model-Based Development) pode ser usado para especificar requisitos em varios niveis: produto, sistema, ou de software. Na area de aviacao, o uso de normas regulatorias no processo de certificacao e usualmente requerido. A RTCA DO-178C e seus suplementos legislam sobre as necessidades que o processo de desenvolvimento de software precisa atender para tornar o produto de software certificavel. Nos ultimos anos, e notavel o crescimento no uso de modelagem. Assim, o objetivo deste artigo e apresentar um conjunto de direcionadores para o MDB em Software Embarcado Aeronautico, garantindo o atendimento as normas DO-178C e DO-331. Alem dos direcionadores, e apresentado um estudo de caso.
Effect of binary evolution on the inferred initial and final core masses of hydrogen-rich, Type II supernova progenitors

The majority of massive stars, which are the progenitors of core-collapse supernovae (SNe), are found in close binary systems. In a previous work, we modeled the fraction of hydrogen-rich, Type II SN progenitors whose evolution is affected by mass exchange with their companion, finding this to be between ≈1/3 and 1/2 for most assumptions. Here we study in more depth the impact of this binary history of Type II SN progenitors on their final pre-SN core mass distribution, using population synthesis simulations. We find that binary star progenitors of Type II SNe typically end their life with a larger core mass than they would have had if they had lived in isolation because they gained mass or merged with a companion before their explosion. The combination of the diverse binary evolutionary paths typically leads to a marginally shallower final core mass distribution. In discussing our results in the context of the red supergiant problem, that is, the reported lack of detected high luminosity progenitors, we conclude that binary evolution does not seem to significantly affect the issue. This conclusion is quite robust against our variations in the assumptions of binary physics. We also predict that inferring the initial masses of Type II SN progenitors by “age-dating” their surrounding environment systematically yields lower masses compared to methods that probe the pre-SN core mass or luminosity. A robust discrepancy between the inferred initial masses of a SN progenitor from those different techniques could indicate an evolutionary history of binary mass accretion or merging.
Blow to the Northeast? Intraspecific differentiation of Populus davidiana suggests a north‐eastward skew of a phylogeographic break in East Asia

There is increasing interest in the role that biological traits, and historical and biogeographic processes, play in the formation of phylogeographic patterns. An arid belt that once existed in northern China might have affected many plants, but this has yet to be tested in an arid‐tolerant, wind‐dispersed species. Here, we tested how intrinsic and extrinsic factors have affected the phylogeography of Populus davidiana.
Chattering Free Adaptive Sliding Mode Controller for Photovoltaic Panels with Maximum Power Point Tracking

Photovoltaic system is utilized to generate energy that relies upon the ecological conditions, for example, temperature, irradiance, and the load associated with it. Considering the non-linear component of photovoltaic (PV) array and the issue of low effectiveness because of the variable natural conditions, the Maximum Power Point Tracking (MPPT) method is required to extract the maximum power from the PV system. The adopted control is executed utilizing an Adaptive Sliding Mode Controller (ASMC) and the enhancement is actualized utilizing an Improved Pattern Search Method (IPSM). This work employs IPSM based optimization approach in order to command the underlying ASMC controller. The upper level decision determines the sliding surface for the adaptive controller. As a non-linear strategy, the stability of the adaptive controller is guaranteed by conducting a Liapunov analysis. On the practical side, MATLAB/Simulink is used as simulator for the controller implementation and coupling with PSIM in order to connect it with the PV system object of control. The simulation results validate that the proposed controller effectively improves the voltage tracking, system power with reduced chattering effect and steady-state error. The performance of the proposed control architectures is validated by comparing the proposals with that of the well-known and widely used Proportional Integral Derivative (PID) controller. That operated as a lower level controller for a Perturb & Observe (P&O) and Particle Swarm Optimization (PSO).
Improving Lecturers' Scientific Publication through Capacity Building Moderation

This study aims to get the analysis result of organizational climate, punishment and reward, and competence have an effect on the capacity building of the lecturers in writing scientific papers partially and simultaneously, the organizational climate, punishment and reward, competence and capacity building effect lecturers' scientific work productivity partially and simultaneously. The quantitative approach used the confirmatory survey method and it was verification. Data processing was using SEM-Amos, that organizational climate affected the capacity building with CR 3.494>1.96, significance 0.00 0.05 was terminated 0.240; competence influenced capacity building with CR 1.992> 1.96, significance 0.046<0.05 and termination 0.175; Simultaneously organizational climate, punishment, and reward, and competence influenced capacity building with a regression coefficient of 0.518, and so on. The conclusions from this study are The higher education organizations climate that supports the writing of textbooks for completing lectures, the punishment & rewards for lecturers who carry out research obligations in every semester, competencies that follow the information technology to continue working, the increase of lecturers' capacity building to write books have an impact on the lecturer's performance to write scientific papers.
Urea–formaldehyde crosslinked starch and guar gum matrices for encapsulation of natural liquid pesticide [Azadirachta Indica A. Juss. (neem) seed oil]: swelling and release kinetics

Polymeric granules were prepared by matrix encapsulation containing 20, 35 and 50% (w/w) of natural liquid pesticide viz., Azadirachta Indica A. Juss. (neem) seed oil (NSO) per dry weight of urea formaldehyde crosslinked starch (UF-St), guar gum (UF-GG) and UF-(St + GG) matrices. Results of swelling and cumulative release kinetics are presented at 35°C for these matrices. The static dissolution experiments have been carried out at 35°C for seven days. The percentage cumulative release kinetic data have been analyzed using an empirical equation to study the release pattern of NSO through the polymeric membranes employed. Transport follows the Super Case II mechanism as tested by an empirical equation. It is found that the release of the active ingredient depends upon the type of the matrix and its swelling ability. The percentage loading of NSO with different matrices and their density exerted an influence on the release data. The FTIR results indicated the absence of chemical interactions between the matrices and the NSO. In the majority of cases, entrapment efficiency was generally more than 95% indicating the efficient encapsulation. Furthermore, the experimental results are discussed in terms of the nature and the combined effect of the individual matrices as well as the percentage loading of NSO. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 73: 2437–2446, 1999
Analysis of Technological Evolution for TV Displays Using S-Curves

This paper presents a study of the evolution of TV displays using an S-curve analysis. It provides an important analysis of how systems have changed from the past to the present, and how future systems can be predicted. The S-curve analysis shows that the main parameter of value (MPV) is important, which allows the curve to be drawn, and the position of the evolution to be seen. Therefore, the MPV of a system was set, and an S-curve analysis was conducted. The S-curves for cathode-ray tube (CRT), plasma display panel (PDP), liquid crystal display (LCD), organic light emitting diode (OLED), quantum dot light emitting diode (QLED), and micro light emitting diode (Micro LED) displays were drawn using a patent analysis, and their evolution positions on the S-curve were determined. To analyze the development trends of TV displays and predict future display technologies, an S-curve was drawn for different MPVs. The S-curve analysis showed that future TVs are expected to use Micro LED displays, which has passed its birth period and is now in the growth stage. of technical system evolution. ” This study discussed a life cycle (S-curve) analysis method of a technological system that can explain the large framework of technological systems evolution based on the TRIZ theory and that predicts future trends. A practical method was developed through a systematic approach toward the meaning of the life cycle analysis method (S-curve) and graph drawing method. Through a patent analysis, a method to determine the S-curve position was systematized. Furthermore, a study was conducted for the case of a TV
Carbon-coated Na3V2(PO4)2F3 nanoparticles embedded in a mesoporous carbon matrix as a potential cathode material for sodium-ion batteries with superior rate capability and long-term cycle life

A carbon-coated Na3V2(PO4)2F3 nanocomposite (NVPF@C) is successfully realized by a facile sol–gel method. Carbon-coated NVPF nanoparticles are dispersed inside the mesoporous carbon matrix, which can not only improve the electron/ion transfer among different nanoparticles, but also benefit the electrolyte wetting during cycling. As a result, the NVPF@C cathode demonstrates remarkable Na+ storage performance: a high reversible capacity of nearly 130 mA h g−1 over 50 cycles between 4.3 and 2.0 V; superior rate capability with specific capacities of nearly 74 and 57 mA h g−1 at high current densities of 15C (1.92 A g−1) and 30C (3.84 A g−1), respectively; long-term cycle life with capacity retentions of 70% and 50% over 1000 and 3000 cycles at 10C and 30C rates. Thanks to the manifested high energy and power densities, the NVPF@C nanocomposite is suggested as a promising cathode material for grid energy storage.
From State Capture to “Pariah” Status? The Preference Attainment of the Hungarian Banking Association (2006–14)

Abstract One of the major political narratives in the build-up to the critical parliamentary election of 2010 in Hungary was related to the “government of bankers. ” Pre-2010 governments earned this label by the opposition based on their supposed close relationship with banking interests and for purportedly formulating financial and tax policy according to the needs of major financial institutions. In this article, we examine the preference attainment of the Hungarian Banking Association, the pre-eminent interest group in banking, and that of OTP, the biggest bank in Hungary, in order to evaluate this popular claim. The article addresses this challenge by comparing the policy influence of Hungarian Banking Association and OTP in the government cycles ending and starting in 2010. We adopt a computer-assisted qualitative content analysis framework and juxtapose the policy positions of the interest group in their formal communications with actual legislation related to the same issues. Results show that the general preference attainment of the banking lobby on major policy issues decreased after 2010—nevertheless, seismic activity was already under way after 2006.