Miracle-dz/UniFAR-FTUs huggingface dataset:
Analysis and Design of Hybrid Systems

Many physical systems today are modeled by interacting continuous and discrete event systems. Such hybrid systems contain both continuous and discrete states that influence the dynamic behavior. There has been an increasing interest in these types of systems during the last decade, mostly due to the growing use of computers in the control of physical plants but also as a result of the hybrid nature of physical processes. Hybrid system models, suitable for describing the essential dynamics of a fairly large class of physical systems in control engineering applications, are proposed in this thesis. The continuous dynamics is described by differential equations whose evolution depends on continuous states and inputs as well as discrete states. The discrete dynamics is modeled by discrete event systems dependent on discrete and continuous states and inputs. It is shown that hybrid systems can be constructed by modular decompositions. A closed-loop hybrid system structure consisting of an open-loop hybrid plant and a hybrid controller, suitable for the description of control engineering systems, is proposed. Stability is one of the most important properties of dynamic systems. A large portion of this thesis is focused on conditions ensuring stability of hybrid systems. The stability results are extensions of Lyapunov theory where the existence of an abstract energy function satisfying certain properties verifies stability. It is shown how the search for such functions can be formulated as linear matrix inequality (LMI) problems, where solutions can be found by computerized methods. Stability robustness dealing with the possibility to guarantee stability despite the presence of model uncertainties is also treated. A large number of examples illustrating different approaches is given. There are many controller structures in the industry consisting of local controllers and the design task is to decide the appropriate switching among these. A related problem occurs in the case of having discrete actuators in continuous processes. The design part of this thesis addresses the problem of how to switch between different continuous vector fields guaranteeing stability of the closed-loop system.
Forest Stand Dynamics

Plant Interactions and Limitations of Growth. Tree Architecture and Growth. Disturbances and Stand Development. Overview of Stand Development Patterns. Temporal and Spatial Patterns of Tree Invasion. Stand Initiation Stage: Single-Cohort Stands. Stem Exclusion Stage: Single-Cohort Stands, Single-Species Stands. Stem Exclusion Stage: Single-Cohort Stands, Mixed-Species Stands. Understory Reinitiation Stage. Old Growth Stage. Multicohort Stands: Behavior of Component Cohorts. Development of Multicohort Stands. Stand Edges, Gaps, and Clumps. Quantification of Stand Development. Forest Patterns Over Long Times and Large Areas. References. Appendix. Index.
The Prevalence of Signs of Thyroid Pathology among Students of the Karaganda Medical University According to the Survey

AIM: The objectives of the study were to study the signs of thyroid dysfunction in students at the Karaganda Medical University. MATERIALS AND METHODS: The survey was conducted among students of the Karaganda Medical University in the amount of two hundred people. Statistical methods were used for comparison among students of different courses. RESULTS: Among junior students, signs of thyroid dysfunction were more pronounced than among senior students. More than half of the examined students had a diagnosed thyroid pathology, which was more pronounced in students of one and two courses. CONCLUSION: Undergraduates are more likely to exhibit signs of stress-related thyroid dysfunction.
Energy profiling in the life‐cycle assessment of buildings

Purpose – Building energy performance is a key element when assessing the sustainability, or otherwise, of the built environment. However, the prescriptive nature of current approaches to sustainability assessment stultifies innovative approaches to sustainable building design. The purpose of this paper is to illustrate how a current EU FP7‐funded project, entitled “IntUBE – Intelligent Use of Buildings' Energy Information,” will contribute to improving the measurement and evaluation of building energy performance. The paper also seeks to highlight the potential offered by the energy‐profiling tools and techniques being developed as part of the project to contribute to the assessment of sustainable urban development.Design/methodology/approach – The IntUBE project is developing new methods of integrating the information and communication technologies (ICTs) used in the design and operation of buildings, with the aim of facilitating improvements in the energy performance of buildings and the measurement of.
Multi-channel radiometer based on bandwidth synthetic to improve the sensitivity

The microwave radiometer is a highly sensitive receiver capable of measuring low levels of microwave radiation. Limited by the interference or the performance of the pre-detection amplifiers, the bandwidth can not be enlarged infinitely to improve the sensitivity for a single channel radiometer. Some multi-channel radiometers are also reported. The scanning multichannel microwave radiometer (SMMR) is conceived in order to provide an instrument capable of obtaining global ocean circulation parameters (P. Gloersen and F. Barath, IEEE J. Oceanic Eng., 2, 2, 172–178, 1977). International Sub Millimeter Airborne Radiometer (ISMAR) is a new passive remote-sensing radiometer which contains a number of heterodyne receivers (S. Fox et al., MicroRad, 2014). They are all composed of several single channels operating at different frequency, and every channel is independent of each other. So the bandwidth of these single channels can not be synthesized to improve the radiometer sensitivity. The front-end of polarimetric microwave radiometer is composed of ortho-mode transducer (OMT), multimode horn (MMH) and multichannel (A. J. Gasiewski and D. B. Kunkee, IEEE Trans. Microw. Theory Tech., 41, 767–773, 1993). But the multichannel polarimetric microwave radiometer are designed for getting the polarization information of the target, it can not be used to synthesize a wide bandwidth to improve the radiometer sensitivity. The Synthetic Aperture Radiometer consists of a large number of single channel radiometers (C. S. Ruf et al., IEEE Trans. Geosci. Remote Sens., 26, 5, 597–611, 1988). However, increasing the number of the radiometers is designed for improving the radiometer system's spatial resolution, which can not be used to improve the radiometer sensitivity.
Stimulating the picohydropower market for low-income households in Ecuador

The main aim of this World Bank-ESMAP project has been to pave the way for picohydro to become accessible to low-income households in Ecuador, with the view to replicating the process in the Andean region and other developing countries. This has been done through five main activities: (1) assessing the main experiences in picohydro technology and market developments, looking particularly at Vietnam and the Philippines1; (2) reviewing the existing use of microhydro in five Andean countries2 and assessing their potential picohydro market; (3) establishing 31 pilot picohydro projects in two provinces of Ecuador with full participation of the end users in local communities; (4) encouraging a sustainable local infrastructure for supporting picohydro technology in Ecuador through training local technicians and bringing local dealers forward to consider picohydro as a business venture; and (5) conducting a rapid rural appraisal in the communities before and after the installation of the picohydro pilots to consider the technological and social impacts in the Ecuadoran situation.
Multivariable Model-Free Adaptive Controller Design With Differential Characteristic for Load Reduction of Wind Turbines

The asymmetric loads on wind turbines are becoming a fatal constraint factor with the increase of wind turbine size. In order to tackle this challenge, individual pitch control mechanism is introduced into the wind turbines. However, the application scopeof the traditional individual pitch control (IPC) is limited due to the complex dynamic coupling among wind turbine components, the strong nonlinearity of the pitch system and the inevitable unmodeled dynamics. Therefore, a multivariable model-free adaptive control (MIMO-DE-MFAC) strategy with differential characteristic is first proposed in this paper. Then, the proposed method is applied to the individual pitch control of the 5MW wind turbine. The simulation results from FAST demonstrate that the MIMO-DE-MFAC achieves a notable performance improvement on blade root compared with the PI. Furthermore, compared with other existing model-free adaptive control (MFAC) strategies, the proposed method not only achieves the optimal control results, but also has stronger robustness in speed-varying wind fields. Finally, the hardware-in-the-loop (HIL) experiment further verifies the reliability of the above simulation results, which provides a useful reference value for the field test.
Bioteknologi Berbasis Bioentrepreneurship: Persepsi Mahasiswa Biologi

Studi ini bertujuan untuk mengeksplorasi persepsi mahasiswa pendidikan biologi terhadap pembelajaran bioteknologi berbasis bioentrepreneurship. Studi ini merupakan penelitian deskriptif eksploratif dimana responden adalah 56 mahasiswa pendidikan biologi di Universitas Pendidikan Mandalika. Instrumen yang digunakan berupa angket tertutup dengan skala Guttman dan yang telah divalidasi (validasi ahli). Data penelitian dianalisis secara deskriptif dan statistik inferensial dengan uji Kruskal Wallis. Hasil studi yaitu (1) persepsi mahasiswa pendidikan biologi di Universitas Pendidikan Mandalika terhadap pembelajaran bioteknologi berbasis bioentrepreneurship adalah sangat baik dengan rincian persentase pesepsi mahasiswa semester II sebesar 67,5%, semester IV sebesar 82,5%, semester VI sebesar 96,9%, dan semester VIII sebesar 90%; (2) hasil uji kruskal wallis dengan nilai signifikansi sebesar 0,002 lebih kecil dari nilai alpha pengujian alpha pengujian (>0,05), sehingga dapat disimpulkan bahwa ada perbedaan signifikan persepsi mahasiswa pendidikan biologi terhadap pembelajaran bioteknologi berbasis bioentrepreneurship.
Study of the Association Between Quarantine and Risk Factors for Eating Disorders (ED) in Moroccan Adolescents During the COVID-19 Pandemic

Introduction: The quarantine caused by the COVID -19 pandemic has profound repercussions that can affect the daily lives of the population in different ways. Adolescents are among the age groups most vulnerable to these disruptions. Objective: The objective of the present study is to identify the links between confinement and the appearance of risk factors for eating disorders (henceforth ED) in Moroccan adolescents. Method: This is a cross-sectional study; aimed at some Moroccan adolescents aged 10 to 19 years, by using Google Forms for an online survey. A total of 375 adolescents participated in this national survey. The statistical analysis of the results allowed, on the one hand, detecting the effect of confinement on the eating behaviors of adolescents, and on the other hand, to predict the variables that could constitute risk factors for the onset of ED or relapse of ED. Results: The analysis of the results shows that the appearance of anxiety in adolescents during confinement represents a highly significant risk factor for ED (OR = 14.10 [95% CI: 2.82 70.96] p =0.001). Conclusion: The analysis of these results allowed us to conclude that confinement has a strong impact on the eating behavior of Moroccan adolescents, making them highly susceptible to developing an ED, hence the need to implement effective environmental prevention strategies to prevent the onset or relapse of ED in adolescents during future confinements.
Failure analysis of EHV transformers

Failure activity of different samples of AEP extra high voltage (EHV) transformers is analyzed using estimations of the time-dependent failure rate. This analysis can be applied to investigation of the failure mechanism of 765 kV transformers. A novel method for the probabilistic estimation of the number of future failures is introduced. Results are compared with those of traditional computations of the number of future failures conducted using different average failure-rate approaches. >
Photoprotection among young children: assessment of mothers’ awareness and health behaviours

Introduction Due to the increasing incidence of skin cancer in the last decades a wide promotion of proper sun protection is needed. Mothers and their children commonly spending time outdoors are particularly vulnerable to the harmful effects of sunlight. Aim To assess health awareness and behaviours connected to sun protection in the group of mothers of children under 6 years of age. Material and methods An online survey containing 23 questions (19 closed and 4 open) was carried out between July and August 2019. One hundred and seven women (mean age: 30.7 ±4.3years) participated in the study. The mean age of children was 1.9 ±1.6years (range: 0–6 years). Results One hundred and five (98.1%) mothers declared using sunscreen. Of them, 36 women used sunscreen only in summer, while 14 women applied sunscreen all year. Mothers of younger children used sunscreen all year round significantly more often (p = 0.041) compared to mothers of older children. Mothers of children under the age of 1 used sunscreen when staying in the shade more often (p = 0.025) than mothers of older children. Only 14 (13.3%) women declared applying sunscreen on their children during cloudy weather. Conclusions A good photoprotection awareness of mothers, especially with respect to the youngest children was observed. However, a need for further education regarding certain photoprotection aspects (proper application and damaging effect of UVA) is necessary.
Descriptive and Quasi-Experimental Studies about Moral Emotions, Online Empathy, Anger Management, and Their Relations with Key Competencies in Primary Education

Background: Antisocial behaviours make social interactions difficult among students. Moral emotions, online empathy, and anger management are social and emotional variables related to prosocial and antisocial behaviours and health problems. This research aims to assess the impact of Cooperative Project-Based Learning intervention on these three variables for Primary Education students. Additionally, the relations of these variables with key competencies, such as social and emotional competencies and literacy competence, were studied. Method: This research is made up of two studies, descriptive and quasi-experimental, during regular school hours. The descriptive study was carried out with a sample of 516 primary school students and aimed to assess the development of the three variables, taking into account personal and ethnic-cultural factors. The quasi-experimental study, with pre-test and post-test data, had the participation of 145 students to study the incidence of these variables after Cooperative Project-Based Learning intervention in Primary Education. Results: The results show the relation among the cited variables and the positive impact of the intervention on moral emotions and anger management in the experimental group compared to the control group. Experimental group girls presented higher scores in moral emotions than control group girls. Conclusion: These results open new research lines in relation to the intervention as a programme to prevent the appearance of antisocial behaviours and health problems at school.
Convex Optimization of Mutual Inductance Between Multiantiparallel Coils for Distance-Insensitive Wireless Charging of Air–Ground Robots

This article proposes convex optimization of mutual inductance between multiantiparallel coils (MACs) for distance-insensitive wireless charging of air–ground robots. In order to reduce optimization costs, the proposed optimization method is developed by hybridizing analytical and numerical models. First, it is shown that the commonly used analytical model for MAC design becomes inaccurate as frequency increases. Second, a trial mutual inductance is introduced as an optimization variable. From the trial mutual inductance, an MAC is designed using the analytical model. Third, the realized mutual inductance of the analytically designed MAC is computed by a numerical model to correct the error of the analytical model. The difference vector <inline-formula> <tex-math notation="LaTeX">$\bar {\rho }$ </tex-math></inline-formula> between the realized and optimal mutual inductances is written as a function of the trial mutual inductance, and the <inline-formula> <tex-math notation="LaTeX">$l_{2}$ </tex-math></inline-formula>-norm of <inline-formula> <tex-math notation="LaTeX">$\bar {\rho }$ </tex-math></inline-formula> is minimized by changing the trial mutual inductance. The resultant optimization problem is shown to be convex, and it is conveniently solved by using a local searching method. Simulation results show that the proposed design method satisfies design specification much better than the conventional analytical-model-based design method. Using the proposed method, an MAC prototype is designed and fabricated, and a wireless charging system for air–ground robots is constructed and tested. Measurement results show that the efficiency of the designed MAC is maintained at around 80% in the transfer distance range of 15–55 mm, and stable efficiency is obtained when charging real air–ground robots of different heights.
Self-Assembled Polyaniline/Ti3C2Tx Nanocomposites for High-Performance Electrochromic Films

Electrochromic materials and devices are attracting intense attention because of their low energy consumption and open-circuit memory effect. Considering the difficult processing characteristics of electrochromic conductive polymers, we developed a facile and scalable strategy to prepare solution processable polyaniline (PANI)-based nanocomposites by introducing two-dimensional titanium carbon nanosheets (MXene) through a self-assembly approach. The PANI/MXene nanocomposite can be fabricated into porous films via spray-coating process, which show an obvious synergetic effect of both materials, leading to superior electrochromic properties. The optical contrast of the optimized PANI/MXene film reached as high as 55% at =700 nm, and its response times were 1.3 s for coloration and 2.0 s for bleaching, respectively. In addition, the composite film also showed excellent cycle stability (after 500 cycles, the ΔT retention was above 87%). The improved electrochromic properties are owed to the high conductivity of MXene and the formation of the porous composite film structure, which promote the electronic/ionic transfer and migration efficiency. This research suggests that the self-assembly method and the conductive polymer/MXene nanocomposites have a potential application in the fields of electronic functional films and devices.
Coming-out in Body Integrity Dysphoria

1 Department of Psychology, Medical School Hamburg, University of Applied Sciences, Am Kaiserkai 1, D-20457 Hamburg, Germany. 2 Department of Psychosomatics & Psychotherapy, Christian-Albrechts-Universität zu Kiel, University of Applied Sciences, Niemannsweg 147, D-24105 Kiel, Germany. 3 Department of Neuropsychology, Medical School Hamburg, University of Applied Sciences, Am Kaiserkai 1, D-20457 Hamburg, Germany.
Public perceptions of renewable energy technologies : challenging the notion of widespread support

Developing renewable energy is a key part of UK (and European) energy policy to reduce carbon emissions and ensure energy security (DECC, 2009c). Public perception research has consistently shown widespread support for renewable energy and specific technologies (e.g. wind and solar especially); yet at the local level developments often face a lot of opposition (McGowen & Sauter, 2005). Much research has focused on explaining responses at the local level, however little research has examined the often assumed widespread support. Through a mixed-method approach (using both qualitative and more innovative quantitative methods including a decision-pathway approach; Gregory et al., 1997) this research is able to show that there are many nuances and complexities evident in general attitudes and perceptions, which are normally missed when using traditional survey methods. Support for renewables, and wind farms in particular, is to some extent unstable, undefined and qualified, yet this is not often acknowledged in the literature or in practice. The role for more complex attitudes, uncertainty and low-salience is highlighted. The results are discussed in relation to the literature examining local responses, and implications for policy and practice are drawn out. What it means to measure public opinion is discussed. This thesis concludes that there are many viewpoints between strong support and fundamental opposition that need to be acknowledged and engaged with.
SALON: A Universal Stay Point-Based Location Analysis Platform

The prevalence of positioning technologies has fostered massive trajectory data. Stay points from trajectories indicate the visiting of moving objects to locations, which provide an opportunity to understand the locations comprehensively. Many existing works rely on stay points to analyze locations. However, they are ad-hoc solutions to tackle specific problems, and it is time-consuming and tedious to develop each application. In this paper, we propose a universal StAy point-based LOcation aNalysis platform, i.e., SALON, with the characteristics of universality, efficiency and flexibility. It can retrieve stay points using flexible conditions, associate stay points with locations, extract comprehensive location profiles and visualize the analysis results to users. Based on the combination of these functions, we demonstrate three different location analysis scenarios, i.e., illegal location discovery, popular location ranking, location temporal analysis to show its characteristics.
Using low cost open source UAVs for marine wild life monitoring - Field Report

Abstract In this paper we report results on the use of low cost, open source Unmanned Aerial Vehicles (UAV) for detecting and tracking hammerhead sharks using a digital camera payload. With the prevailing increase in affordability of Unmanned Aerial Systems (UAS) these have gained a widespread appeal and use in civilian, military and academic research scenarios. Moreover these systems have become easier to setup and deploy allowing their use in projects or activities with more limited means of funding. Still, the challenge of successfully meeting the end-user's demands with an easy-to-use, low cost operational package while avoiding over-fitting issues remains. This paper explores the applicability and successfulness of an existing low cost UAS solution in tackling maritime based environmental studies, while testing its scalability potential. Furthermore while relying upon an established tool-chain, different payload configurations were fitted into the UAV. After a series of real flight tests the end-user's required data was recovered distilled and analysed. End-user feedback demonstrated an overwhelming satisfaction with UAS's capacity to meet the required goals while retaining its modularity and affordability intact.