Miracle-dz/UniFAR-FTUs huggingface dataset:
Influence of Internal Technological Defects on the Mechanical Properties of Structural CFRP

The use of carbon-fiber composite materials (CFRP) in critical cases implies an increase in the resistance to the stability of their mechanical properties. For the purpose of in-depth analysis of defects in the experiments, an integrated approach to mechanical flaw detection and testing of CFRP is used. To determine the parameters of defects in ultrasonic diagnostic sensors and the method of infrared thermography. The main technological defects of structural carbon fiber in samples of the internal "glueline defect", are three geometric shapes (circle, square, rectangle) and a "buckling" inner layer. As a result of flaw detection of individual samples by ultrasonic diagnostics, data were obtained on the shape and size of defects such as "glueline defect" and "buckling". As a result of the study, tensile testing of the samples with and without defects was carried out using the Vic 3D system, the AMSY-6 acoustic emission system, and the FLIR SC7700M thermal imaging system. The tensile strength, elastic modulus, Poisson's ratio, and maximum fracture strains of the studied CFRP without defects and with defects are obtained. The effect of defective zones on the main mechanical parameters is determined. The investigated defects lead to a decrease in strength and elastic characteristics by at least 15% and 5%, respectively.
Asymptotic sets in networks of coupled quadratic nodes

We study asymptotic behaviour in networks of n nodes with discrete quadratic dynamics. While single map complex quadratic iterations have been studied over the past century, considering ensembles of such functions, organized as coupled nodes in an oriented network, generates new questions with potentially interesting applications to the life sciences. We discuss extensions of traditional results from single map iterations, such as the existence of an escape radius; we then investigate whether crucial information about the network is encoded in the behaviour of the critical orbit. We use two previously deﬁned objects: the network Mandelbrot set (i.e., the set of quadratic parameters in C n for which the network is post-critically bounded in C n ) and the equi-M set (the diagonal slice of the network Mandelbrot set, corresponding to all nodes using the identical quadratic map). Using a combination of analytical techniques and numerical simulations, we study topological properties of the equi-M set, with the aim of understanding which of these properties are affected by altering different aspects of the network architecture and node-to-node connectivity strengths. We ﬁnd that, while equi-M sets no longer have a hyperbolic bulb structure, some of their geometric landmarks (e.g., the cusp) are preserved for any network conﬁguration, and other properties (such as connectedness) depend on the network structure. We further study the relationship between the Mandelbrot set and the connectedness locus of the network uni-Julia set (deﬁned as the set of z 0 ∈ C for which all nodes remain bounded when they are all initialed identically at z 0 ). We discuss using the geometry of uni-Julia or equi-M sets to classify asymptotic behaviour in networks based on their underlying graph structure. Finally, we propose using a form of averaging uni-Julia and equi-M sets to describe statistically the likelihood of a speciﬁc asymptotic behaviour, considered over an entire collection of conﬁgurations. We discuss which analytical results can be further supported or reﬁned in the future. We also revisit the ties with applications to the life sciences. We explore how this theoretical study may inform on using similar methods to understand natural systems with more complex architecture and node-wise dynamics.
Effect of Nb and more Fe ions co-doping on the microstructures, magnetic, and piezoelectric properties of Aurivillius Bi5Ti3FeO15 phases

Aurivillius Bi5Ti3−2xFe1+xNbxO15 (BTFNO, x = 0.1, 0.2, 0.3, and 0.4) phases were prepared by solid state reaction method. The structures and dielectric responses were studied, and especially the effects of Nb with a higher valence and more Fe co-doping on the magnetic and piezoelectric properties were addressed in detail. The BTFNO samples were well crystallized with no detectable impurities, and plate-like microstructures with various sizes demonstrate the typical characteristics of bismuth-layer Aurivillius materials. It is found that a dielectric loss peak appears in the Nb and Fe co-doped Bi5Ti3FeO15 (BTFO) ceramics, and it has a shift towards a lower frequency with increasing the Nb doping contents. Furthermore, antiferromagnetic long-range magnetic order is improved with the introduction of Nb and more Fe co-doping. And compared with that of the parent BTFO forms, a clear discrepancy, which is indicative of a super-paramagnetic behavior, of the magnetization vs. temperature curves in zero-field cool.
The Relationship Between Cultural Intelligence and Cultural Competence of Students of Nursing and Midwifery During COVID-19: A Cross-Sectional Study

Objectives This study aimed to determine the relationship between cultural intelligence and cultural competence (CC) of the school of nursing and midwifery students from the Zanjan University of Medical Sciences in 2020-2021. Methods This cross-sectional study was conducted on 245 from 600 nursing and midwifery students of the Zanjan University of Medical Sciences from November 24, 2020, to March 18, 2021. Data were collected using three questionnaires of demographic information, Cultural Intelligence Scale, and The Nurse Cultural Competence Scale. Data analysis was done through Pearson's test and the logistic regression model using SPSS Version 22. Results The response rate was 40.83%. The results showed that the total score of cultural intelligence had a strong positive relationship with CC (r = 0.88). Also, the logistic regression model showed that the cultural intelligence variable could predict nursing and midwifery students’ CC (B = 0.1, P = .013). Conclusion It is recommended to pay more attention to increasing the cultural intelligence and CC of nursing and midwifery students.
Resolution characteristics in scanning digital holography with sub-pixel shifting reconstruction imaging

In this paper, the method of recognition and superposition of sub-pixel shifting in digital holograms is investigated. A group of non-scanning holograms is recognized and superposed by using sub-pixel shifting algorithm. Further, spatio-temporal scanning holograms with sub-pixel displacement are recognized and superposed to further improve imaging resolution by combining spatio-temporal scanning digital holography with sub-pixel shifting algorithm. The experimental results verify the feasibility of improving resolution with sub-pixel displacement.
Theories of persistence

This thesis is a survey of metaphysical theories of persistence through time. For each of the theories considered, I concisely state the theory, describe the positive arguments in its favour, suggest ways in which that theory could reply to positive arguments for other theories, discuss some outstanding problems for that theory as stated, and describe some variants on it. In the course of this, I stake out my own distinctive view about persistence, which is a version of endurantism. I also argue for some preliminary results that are needed for the discussion of persistence. These involve issues in metaphysics that I regard as foundational with regard to the debates over persistence: intrinsic properties and the part -whole relation. I take the views: that the distinction between intrinsic and extrinsic properties is orthogonal to that between non relational and relational properties; that, strictly speaking, properties are neither relational nor non -relational; and that intrinsicality is unanalysable. In discussing part -whole, I defend a certain attitude to mereology, which I call "mereological realism" ; and assuming mereological realism, I defend the controversial features of classical mereology.
NEW METHODS FOR DETERMINATION OF AMBROXOL HYDROCHLORIDE IN PURE FORM AND FARMACEUTICAL FORMULATIONS BASED ON SPECTROPHOTOMETRY

The proposed methods are simple, rapid, and accurate, used for the determination of Ambroxol Hydrochloride (AMB.HCl). There were two methods, the First method included chromotrope 2R, chromotrope 2B, arsenazo I, ASPANDS, and chromotrope 2C for the determination of AMB.HCl in its pure and pharmaceutical forms. The first method is based on the drug oxidation with Potassium permanganate in excess. The unreacted potassium permanganate was determined by measuring the absorbance of colored chromotropic acid azo dyes namely chromotrope 2R, chromotrope 2B, arsenazo I, SPADNS, and chromotrope 2C. The suitable ƛmax were 500, 510, 500, 510, and 520 nm, respectively. Under optimized conditions, Beer’s Law showed good correlation and obeyed in the concentration range 1.51-7.46, 0.82-4.97, 1.65-6.63, 0.82-6.63, and 1.73-8.29 µg mL-1 for chromotrope 2R, chromotrope 2B, arsenazo I , SPADNS, and chromotrope 2C. The apparent molar absorptivity, Sandell sensitivity, LOD, and LOQ were calculated. Pure and pharmaceutical forms containing AMB.HCl were analyzed and tested for the validity of the proposed methods. The Second method spectrophotometric titration is based on the determination of unreacted potassium permanganate using spectrophotometric titration against ferrous ammonium sulfate, where the end-point was detected spectrophotometrically using ferrion indicator at 510 nm, the Relative standard deviation where 0.23-2.04 with average recovery 100.35-103%.
Desain Power System Stabilizer Berbasis Fuzzy Tipe-2 untuk Perbaikan Stabilitas Mesin Tunggal

The growth of type-2 fuzzy logic system is penetrating electric power system field, especially on electric power system control sub-field in order to simplify the design of power system stabilizer (PSS). Traditionally, the function of conventional PSS is to damp rotor oscillation when a disturbance occurred due to transmission configuration or/and loading changes. However, the response of conventional PSS is slow with long settling time and high peak overshoot. To cover this problem, PSS based on type-2 fuzzy logic system (PFT2) is proposed. Simulation results show that the PFT2 is able to improve the stability of a single machine with 3 scenarios on transmission configuration and loading variation. The PFT2 gives shorter settling time for all scenarios and loading variation than the settling time of conventional PSS. Also, the peak overshoot of the PFT2 is smaller than the peak overshoot of the other competing PSS.
Coralligenous cliffs: distribution and extent along the Tuscany coasts and spatial variability of the associated assemblages

Coralligenous reefs are the main biogenic constructions of the Mediterranean Sea. The two main coralligenous morphologies are cliffs and platforms. Coralligenous cliffs mostly develop in shallower waters (about 20-50 m) on vertical/sub vertical rocky substrates. Coralligenous platforms are mostly distributed on horizontal substrates below 40-50 m depth on detritic bottoms and rocky outcrops of the continental shelf. The present study aims at contributing to the knowledge of coralligenous cliffs through the assessment of their distribution and extent in a wide geographic zone of northwestern Mediterranean Sea, focusing on the structure and the spatial variability of the associated assemblages. To achieve these objectives, coralligenous cliffs of Tuscany coasts were mapped through Multibeam and Remotely Operated Vehicles. The area of coralligenous cliffs was also manually calculated for each study site using linear extent and bathymetric range of the habitat. In addition, the structure of the associated assemblages was investigated by a multifactorial sampling design taking into account spatial scales ranging from meters to tens of kilometres. Coralligenous cliffs were present in all the study sites, with a linear extent of about 20% of Tuscany’s rocky coastline and an area of about 20% of the Tuscan coralligenous reefs. The difference between data manually calculated and those obtained by Quantum- GIS software was about 33% of the total area. A continental-to-island gradient and a latitudinal gradient were the main factors driving the structure of the associated assemblages. Results highlighted that coralligenous cliffs represent a considerable part of circalittoral biogenic habitat, suggesting that their relevance may be greater than what normally emerges from seabed mapping and that they should be considered separately in monitoring programs, impact assessment studies and management plans.
Static output tracking control for non-linear polynomial time-delay systems via block-pulse functions

Abstract In this paper, a new method is introduced to design static output tracking controllers for a class of non-linear polynomial time-delay systems. The proposed technique is based on the projection of the controlled system and the associated linear reference model that it should follow over a basis of block-pulse functions. The useful properties of these orthogonal functions such as operational matrices jointly used with the Kronecker tensor product may transform the non-linear delay differential equations into linear algebraic equations depending only on parameters of the feedback regulator. The least-squares method is then used for determination of the unknown parameters. Sufficient conditions for the practical stability of the closed-loop system are derived, and a domain of attraction is estimated. The implementation of the proposed method is illustrated on a double inverted pendulums benchmark as well as a two-degree-of- freedom mass-spring-damper system. The simulation results show the effectiveness of the developed technique.
Long-term climatic trends in rainfall pattern analysis over Madhya Pradesh

Climate change is a long-t erm process and main issue of research now a days. The rainfall, it’s trends and variability are also affected by climate change and hence the study of rainfall, variability and future predictions are very much important for planning and management. MP is the second largest state, in India and the fifth largest state in population. Its total area is 308,252 km2 and occupies 9.38% area of the country comprises of two meteorological subdivisions viz. East MP & West MP and ten agro-meteorological zones. The varying climatic conditions along with various geographical features have been responsible for drought and flood conditions in different parts of the state. Increasing population and urbanization of the state are causing adverse impacts on the natural environment. The long-term trends of rainfall are required for the planning of optimum adaptation strategies for sustainable use of water. The rainfall trends, its changes and variability are very important for understanding the impact of climate change at regional scale. The study focuses on temporal variation in rainfall at annual, seasonal & monthly scale over East & West MP meteorological subdivisions and MP state as a whole during the period 1871-2016. The long-term changes in rainfall are examined by Man Kendall and Sen’s slope estimates and also analysed the nature relationship with Southern Oscillation Index (SOI) and North Atlantic Ocean (NAO) index. In monthly trends the rainfall over West MP has shown a significant decrease during June while a significant increase during August, whereas the seasonal and annual trends of rainfall are not significant in West MP. In East MP, annual as well as seasonal rainfall during monsoon season have shown significantly decreasing trend which is most prominent in June and July months. Monsoon rainfall is showing significant decreasing trend at 0.1 level of significance along with significant decrease in June month at 0.05 level over the MP state as a whole. The winter and pre-monsoon rainfall showed almost constant (non-significant) trends for the East as well as West MP and for MP state as a whole; however the post monsoon rainfall showed a significantly decreasing trend over West MP at 0.1 level and over all MP state as a whole at 0.05 level of significance during past 50 years. The state receives major rainfall during monsoon season only and rests of the season contribute only 10% to its annual average rainfall. The decreasing tendency in monsoon rainfall and hence annual rainfall, the urban and semi urban areas of the state are facing problems of water scarcity. The changing rainfall trends during monsoon season are affecting kharif crops productivity. The significantly decreasing monsoon and post monsoon rainfall pattern are causing more dependency of farmers on ground water resources.
Numerical simulation of high-speed non-equilibrium flow with applied magnetic field

The paper describes the development and testing processes of a modification of an existing solver for hypersonic reacting flow within the OpenFOAM numerical simulation framework. The modification is suited to simulate the interaction between the flow and the constant applied magnetic field. The purpose of the development is to create a simulation tool for the study of the concept of magnetohydrodynamical flow control and its possible technological applications. Resulting application utilizes Navier-Stokes-Fourier system of equations supplemented with appropriate auxiliary models for the accurate assessment of process-specific additional terms. Solver testing has been carried out using the cases that highlight solvers capabilities to model MHD high-speed flow in different regimes.
Factors Affecting Employee Turnover in a Small Business in Egypt

Employee turnover has become a common phenomenon in all organizations. It will cost a lot of money and time because organizations need to hire new employees and train them to fill field open positions. There are many different reasons why they choose to leave the organization. So, organizations need to find out the most important reasons to treat and improve it. There are four categories of factors that affect employee turnover: demographic, work, financial-economic and organizational. The demographic category consists of three factors Age, Tenure and Job designation level. The second category which is personal consists of Job Satisfaction and Organizational commitment. While the third category is the organization which consists of payments and benefits, location of workplace, working environment (i.e., flexible working hours), perceive alternative employment opportunities, career promotion and recognition, supervision and relationship, training and improved skills and the last category consists of work stress, work/life balance and field of study. The research design is descriptive with a correlation type of instrumentation to get the effect of variables positively or negatively with the amount. The data will collect via a structured questionnaire. This study has identified several key factors that contribute to employee turnover, including perceived organizational support, job stress, work-life balance, and available job alternatives. The results suggest that organizations can reduce employee turnover by improving perceived organizational support and work-life balance while also minimizing job stress. These findings have important implications for HR management in developing effective retention strategies to retain valuable employees and improve organizational performance.
SMAP Faraday Rotation

Faraday rotation is a change in the polarization as signal propagates through the ionosphere. At L-band it is necessary to correct for this change and measurements are made on the spacecraft of the rotation angle. These figures show that there is good agreement between the SMAP measurements (blue) and predictions based on models (red).
Exploring the Impact of a Global Pandemic (COVID-19) on Factors Impacting the Resilience of Top-Tier London Hockey Players

Introduction The cessation of all professional and amateur sport due to the COVID-19 pandemic had a dramatic effect on the mental and physical capacity of the United Kingdom populace, but its impact was arguably felt more deeply by the athletic population. Thus, this research explored which limiting factors were experienced by team hockey players during the national lockdowns (1.0–3.0) with the objective of enabling coaches and team management to better support and protect players' physiological and psychological resilience in return to play. Methods Data were collected over 12 weeks during the 3rd UK lockdown (March 2021) from two top-tier London clubs. Hockey players (n = 63) completed an online questionnaire that included validated tests for self-compassion, sport motivation, and a custom open-ended style qualitative questionnaire on nutrition and lifestyle behaviour. Mean self-compassion, motivation scores, and common indicative limiting factors were evaluated and ranked according to significance. Results High “rebound resilience” was found with low amotivation scores (m = 8.33) and strong affinity for their sport identifying with the statement “because participation in my sport is an integral part of my life” with correspondingly high integrated regulation scores (m = 21.43). Participants' self-compassion showed the highest scores in mindfulness (m = 3.66) and lowest in self-kindness (m = 2.84) indicating a common trait in athletes for self-criticism. The highest limiting factor was cited as “no social outlets, social interactions, or seeing friends and family”. Conclusion This study revealed the critical role that social connectedness plays in promoting resilience and enhancing motivation in return to play during extremely challenging circumstances. When the social outlet is absent, enhancing resilience factors with mindfulness, self-compassion, and the creation of a more facilitative environment where player welfare takes priority are potential strategies to support players when they are unable to participate in their sport.