Miracle-dz/UniFAR-FTUs huggingface dataset:
Stabilization of wind farm integrated transmission system with input delay

In the process of large-scale wind farms integration, the time delay is usually caused by the introduction of wide area control signal, which leads to the unstable operation of integrated transmission system. In order to solve this problem, using the control principle of interconnection and damping assignment passivity-based (IDA-PB), this paper puts forward a control method which applies voltage source converter high voltage direct current (VSC-HVDC) technology to the integrated system of time-delay wind farm and keeps the system running stably. In this method, the framework of time-delay port controlled Hamiltonian (PCH) system is constructed, and the energy shaping of the system is carried out by extending the IDA-PB control principle, thus the feedback controller of the system is designed. Around the problem of time-delay stabilization, the stability criterion is obtained by constructing Lyapunov-Krasovskii functional and introducing free weighting matrices. Finally, the simulation results show that the proposed method can effectively solve the time delay problem of the integrated transmission system and avoid the performance deterioration of the system.
GC-MS based metabolite profiling and antioxidant activity of solvent extracts of Allium chinense G Don leaves

Allium chinense, a main source of “Xiebai” drug in Chinese traditional medicine and commonly known as Ganoderma lucidum belongs to the family Amaryllidaceae. The main focus of this research was to quantify the secondary metabolites, antioxidant potential and study the GC- MS based metabolite profile of different solvent leaf extracts of A. chinense. The reports on the bioactive compounds of A. chinense leaves are still insufficient compared to the bulb; hence this study was carried out to understand the bioactive compounds present in A. chinense leaves using different solvents of varying polarity. Our investigation showed that the ethanol extract contained the highest saponin, flavonoid, phenol, and DPPH scavenging activity. Further, metabolite profiling revealed a total of forty-eight compounds, indicating a diverse range of phytochemicals present in the four extracts. The highest number of compounds were observed in ethanol extract (15) followed by chloroform extract (13), petroleum ether extract (11) and methanol extract (9). Some of the major compounds identified in the four solvents are octacosane (27.11%), heptadecane (19.66%), eicosane (18.51%), ethyl palmitate (18.50%), phytol (17.68%) and phytol acetate (17.30%). In conclusion, this study highlights that A. chinense leaf extracts contain high saponins, terpenes and alkanes which could be a potential source of a new beneficial drug.
The influence of resilience and expressive flexibility on character strengths and virtues on military leadership in U.S. Military cadets

Introduction: Character strengths and virtues are greatly revered in military leadership. However, there is no empirical work assessing the relationship of resilience and expressive flexibility, two essential psychological constructs crucial in nurturing mentally healthy individuals, also for successful officer development and military leadership. Methods: Employing a cross-sectional design, this study recruited 107 participants (ages 18 to 22) from a private U.S. Military university. McGrath, Rashid, Park, and Peterson’s and Peterson and Seligman’s taxonomies of character strengths and virtues were measured. Self-reported resilience and expressive flexibility were additionally assessed. Results: Results revealed McGrath et al.’s virtue of self-control and Peterson and Seligman’s virtues of temperance, wisdom and knowledge, and humanity as the top ranked virtues for an effective military leader. In terms of character strengths, judgment ranked the highest, with perspective and fairness, second and third. Additional results showed a model suggesting that resilience and expressive flexibility explained 45.9% of variance suggesting that resilience and expressive flexibility significantly (p < .001) predicted leadership. Regression models that included honesty, social intelligence, and hope also offered significant predictive outcomes on leadership (p < .001). Furthermore, results revealed that expressive flexibility predicted the character strengths of creativity (p = .001), bravery (p = .045), love (p = .044), hope (p = .016), teamwork (p = .013), appreciation of beauty (p = .016), curiosity (p = .044), prudence (p = .034), love of learning (p = .020), zest (p = .017), humor (p = .018), and perspective (p = .003). Conclusions: Understanding the relationships amongst these constructs will help in better cultivating protective mechanisms that safeguard from adversity, in encouraging wellness and health, and in supporting healthy human performance and development.
The Effect of Green Trust and Attitude Toward Purchasing Intention of Green Products: A Case Study of the Green Apparel Industry in Indonesia

This study aims to determine the behavior of consumer interest in sustainable fashion products in Indonesia and the factors that influence it. Personal values, Green Trust, and attitude toward green products are studied to get a proper picture of the ethical behavior of consumers. The method used is the Structural Equation Model (SEM) technique using AMOS 23 software. A sample of 103 participants used the convenience sampling technique. The study results show that green trust and attitude toward green products successfully mediate personal value and green purchase intention on ethical fashion products in Indonesia. In this study, it was found that personal values cannot directly influence the purchase intention of sustainable fashion products. The influence of Personal Value must first be mediated by green trust or attitude toward green products to further influence green purchase intention of ethical fashion products in Indonesia. This is not in line with previous studies. Indicators of personal values such as self-transcendence, self-enhancement, conservation, and openness directly cannot predict the behavior of purchase intentions for sustainable fashion products in Indonesia. From the descriptive conclusion of the data obtained, there are various types of meanings of individual values, and fashion consumers in Indonesia are more affected by contextual factors.
Pre-sowing Seed treatments of Chemical, Electric, Magnetic and Botanical Treatments on Plant Growth, Yield and Yield Attributing Traits of Cluster Bean [Cyamopsis tetragonoloba (L.) Taub] [Variety Pusanavbahar]

Cluster bean [Cyamopsis tetragonaloba (L.) Taub] Chromosome number (2n=14) belongs to the family Fabaceae. It is assumed to have developed from the African species Cyamopsis senegalensis. It is hardy and drought tolerant crop having deep root system which enables to utilize the available moisture more efficiently and offers to sustain under rainfed situation (Kherwat et al., 2013). In India, Cluster bean mostly grown in Rajastan, International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 10 Number 02 (2021) Journal homepage: http://www.ijcmas. com
The inhibitory effects of polyphenolic compounds on the damage caused by safflower fly (Acanthiophilus helianthi) in Carthamus spp.

Seed coat color is probably a determinant factor in the antibiosis mechanism of developing resistance to safflower fly (Acanthiophilus helianthi). The purpose of this study was to determine the relationship between the phytochemical content of safflower (Carthamus spp.) seed coat extract with the seed coat color and the damage caused by safflower fly. To this end, germplasm consisting of the cultivated species (C111, with a white seed coat), the wild species (Glaucus and lanatus with a black seed coat; Azar with a brown seed coat), and a breeding line (A82 with a black seed coat) was formed. After cultivating the genotypes, the seed loss (%) and its relationship with the polyphenolic compounds and Cyanidin-3-glucoside of the seed coat extract were examined. Agricultural and phytochemical trait data were analyzed through a completely random block design. With a significant difference from other samples, a minimum damage percentage was observed in Lanatus, Glaucus, and A82 genotypes with a black coat (P < 0.05). The concentration of phenolic compounds, that is, chlorogenic acid, caffeic acid, and p-coumaric acid, except for ferulic acid, was almost equal in all genotypes. However, there was an inverse and direct relationship between the concentration of four polyphenolic compounds (rutin, apigenin, quercetin, and ferulic acid) and Cyd-3-glu content with resistance safflower fly, respectively. In general, flavonoid compounds, that is, rutin, quercetin, and apigenin, affect the resistance probably through antibiosis mechanism so that there was a negative relationship between the concentration of these compounds and resistance to safflower fly.
Long-Range Transport of Aerosols from Biomass Burning over Southeastern of South America and their Implications on Air Quality

ABSTRACT The long-range transport of aerosols is a global issue since it may significantly affect the air quality of regions without high concentrations of fine particulate matter (PM2.5). Two significant occurrences of long-range transport of aerosols over the state of Parana in Brazil, which occurred during the periods Aug. 16–18 and Sep. 10–14 of 2016, were studied in order to characterize the atmospheric synoptic conditions of these events and to estimate their contribution to the air quality conditions in the northern region of the state. The South American Low Level Jet (SALLJ) was the key meteorological component used to define the origin of the air mass trajectories over the region. In the first event, the SALLJ lost its configuration, bringing air masses from the western part of Sao Paulo (state), while in the second event, the SALLJ formed over southern Brazil and brought air masses from the northern and central parts of the nation. The significant number of fires from biomass burning in central Brazil associated with synoptic conditions contributed to the increase in PM2.5 concentrations by approximately 70–87% in the region. The transport of aerosols was a determining factor in PM2.5 exceeding the air quality standard in the region. Therefore, to minimize this problem, it is imperative to control biomass burning in Brazil.
The effect of intermittent training with plyometric exercises on aerobic and anaerobic capacities

This study check the effectiveness of the intermittent work as a key method of work of the quality in the quantity by the layout of a plyometric work. The question always remains to find the training methods scientifically validated which lead to improve these qualities. We put forward the hypothesis that the intermittent training by plyometric exercises will improve the football players, aerobic an anaerobic capacities. Twenty football players aged between 18 and 23 years coming from Tissemsilt university team were invited to participate in our study (table1). Our population was spilt up into 2 groups in a random way. An experimental group (EG) and control group (CG). The programme was calibrated on 8 weeks and planned as follow: two weeks of intermittent work 10s/20s, four weeks of intermittent work 30s/30s, two weeks of intermittent work 15s/30s. The frequency of these types of training was 2 sessions/week. The footballers did a physical tests: (SJ; CMJ). The (RSA) test, and the Yo-yo test. The tests were again proposed to the footballers: this allowed us to compare the obtained results between the two tests before and after the training. After eight weeks of training, we recorded a development in the experimental sample in the (MAS), vertical jump (CMJ), and (RSA) tests, while we did not record a significant difference in the vertical jump (SJ) test (p<0.05), As with the control sample, the development was limited to (MAS) and (RSA) only. This study shows the effectiveness of the training programme applied to the experimental sample in the post-tests between the two groups, with the exception of the vertical jump test (SJ), where there was no significant difference.
Multifunctional Poly(phosphoester)s for Reversible Diels–Alder Postmodification To Tune the LCST in Water

Thermoresponsive materials are currently discussed for applications, e.g., in drug delivery or sensor systems. While homopolymers exhibit a certain LCST, copolymers allow adjusting the cloud points depending on the comonomer ratio. We report on degradable poly(phosphester) (PPE) copolymers exhibiting LCSTs, which can be further tuned by reversible postmodification. A library of copolymers with different cloud points is obtained from a single “precursor polymer”. A novel furfuryl-carrying cyclic phosphate was designed, and different PPE copolymers were prepared via ring-opening polymerization with adjustable furan contents (up to 25 mol % were targeted and achieved) and molecular weights up to 40 000 g/mol (Đ < 1.25). Modification was achieved by a Diels–Alder reaction with maleimides of different hydrophilicity to further alter the solubility profile of the polymers. While the postmodification is thermally reversible, the biodegradable PPE backbone remains unaffected. This first report on the Diels–Alder .
Spatial Association characteristics of facilities around scenic spots considering distance and orientation: A case study of 3A and above scenic spots in Beijing

In the urban tourism and service industry, the POI data with coordinate and attribute information of the major map platforms constitute one of the important data sources of the urban tourism and service industry. In this paper, the spatial data transaction database under four distances was established based on the gate buffer of 3A and above scenic spots in Beijing. The Apriori algorithm was used to calculate the lifting degree to obtain the distance for mining the best association features of 3A, 4A and 5A scenic spots, and then the association features of the three scenic spots in different directions were analysed.
Early adolescents’ parent–child communication and friendship quality: A cross-lagged analysis

This study explored the two-way relationship between parent–child communication and the friendship quality of early adolescents, as well as the stability of these constructs and of gender differences, using a cross-lagged analysis. We conducted a 10-month follow-up study with 842 adolescents using the Parent–Adolescent Communication Scale and the Friendship Quality Questionnaire. Results show that both father–child and mother–child communication at Time 1 significantly and positively predicted friendship quality in early adolescence as measured at Time 2; that is, the better was parent–child communication at Time 1, the higher was the friendship quality in early adolescence at Time 2. However, friendship quality at Time 1 did not significantly predict parent–child at Time 2. Additionally, parent–child communication and friendship quality were better among children in seventh compared to eighth grade. Girls’ friendship quality was higher than that of boys, whereas boys’ parent–child communication was better than that of girls.
A model-based control law for vibration reduction of serial robots with flexible joints

The presence of flexibilities in rotational joints can limit the kinematic performances of manipulators doing high speed tasks as Pick and Place. The problem addressed in this work concerns the vibration control of serial robots with flexible joints performing Pick and Place tasks in order to improve productivity. Based on a dynamic model of a robot with flexible joints, a model-based control law is proposed with its associated tuning methodology. The robot dynamic model is then the key point of our methodology. This dynamic model considers stiffness and damping of each flexible joint. To guarantee its accuracy, a geometrical and dynamic identification procedure is realized. The objective is to show the relevancy of the proposed approach which integrates joint flexibilities in the control law. Theoretical results based on a representative model are used to illustrate the benefit of this model-based control law compare to two other control strategies (Feedforward control and control dedicated to rigid structures). Finally, a sensitivity analysis of this control law is realized to quantify the impact of modelling error and conclude on the criticality of joint damping value on vibration decreasing.
Research methods and techniques in management practice in the era of Industry 4.0

Purpose: The aim of the article was to indicate research methods and techniques used in management practice while taking into account the assumptions of Industry 4.0. Design/methodology/approach: In order to identify research methods and techniques, the author of the article made use of a survey questionnaire addressed to practitioners who were his target group: 52 foreign companies, 183 domestic companies. As a result of the research effort undertaken, the answers of 118 representatives of management science practitioners were analysed. Findings: The conclusions of the research indicated that the most important methods, according to management practitioners, were: observation, interview and documentation analysis. However, the most frequently used research techniques in practice include: analysis of business opinions, a probation period at the workplace, situation-related interview, knowledge test in a specific field, task-related behaviour samples, task skills test and analysis of informal client opinions. Research limitations/implications: the stage defining a research problem, it is now difficult to choose a single method that provides a complete and thorough diagnosis of the problem. It is, therefore, necessary to use a variety of research methods which provide a comprehensive response to the research problem reacting to the problems resulting from the current situation but also solving the issues related to the future, e.g. Industry 4.0, which is considerably difficult. Social implications: When analysing the obtained results, management practitioners stress that it is necessary to develop a model, procedure, tool, approach to the research process. Moreover, respondents also believe that the developed model, procedure, tool or approach in the selection of methods to the research process significantly affects the quality and practical use of research results. Originality/value: The analysis of the results clearly indicates the use of research techniques that are close to the task processes of companies and verify the competence of employees. Conclusions resulting from the analysis of national and foreign literature on research process methodology indicate the need to address the problem of using diversified research methods providing a comprehensive response to the problem posed in the context of Industry 4.0.
A Biological Investigation of the Proteins Required for Nickel Insertion into Escherichia coli [NiFe] Hydrogenase

[NiFe] hydrogenases are found in a variety of microorganisms and catalyze the reversible oxidation of hydrogen gas to protons and electrons. This enzyme has generated intense interest due to its contribution to pathogenicity in certain organisms as well as its application in bioremediation and the production of hydrogen as an alternative fuel source. The biosynthesis of the dinuclear active site requires a number of accessory proteins to chaperone and insert the metal cofactors to the awaiting large subunit of hydrogenase. The proteins responsible for nickel delivery to Escherichia coli hydrogenase 3 are HypA, HypB, and SlyD, however the mechanism by which this is accomplished is unclear. The goal of this work was to analyze the metal-binding abilities and protein interactions of these nickel insertion proteins to enhance our understanding of their roles. Isolated N-terminal peptide of HypB has similar high-affinity metal-binding to the full-length protein. This peptide binds nickel in a square planar site with three cysteinyl and a fourth Nterminal amine ligand. Additionally, studies with SlyD and HypA reveal protein interactions that occur during hydrogenase maturation. Pull-down experiments of a tagged variant of hydrogenase revealed multi-protein complexes with HypA, HypB, and SlyD. A complex
Peroptronic devices: perovskite-based light-emitting solar cells

Solution processed perovskite semiconductors have developed rapidly over the past decade to yield excellent performance in both solar cell and light emitting diode devices. Both of these device types are prepared using similar materials and architectures, raising the possibility of perovskite based light emitting solar cells. Recent reports have indicated that some low band gap perovskite solar cells are able to emit infrared light efficiently, however, intermediate band gap perovskite solar cells which emit visible light have not, to the best of our knowledge been deliberately designed or extensively characterized. In this work, we have investigated the use of different electron transport layers in order to minimize energetic barriers to electron injection and extraction in methylammonium lead bromide (MAPbBr3) films. We demonstrate that through appropriate band structure engineering, MAPbBr3 can be used to make such “peroptronic” light-emitting solar cells, which simultaneously exhibit efficient solar cell power conversion efficiencies over 1% and 0.43 lm W−1 green light emission.
Knowledge-Data-Driven Flexible Switching Control for Wastewater Treatment Process

The wastewater treatment process (WWTP), including multiple operation conditions, is a complex industrial process with strong nonlinearity and time-varying dynamics. It is a challenge to design an effective controller for this kind of process. To solve this problem, a knowledge-data-driven flexible switching controller is designed and analyzed to achieve reliable control performance. First, a flexible switching control strategy is proposed to build multiple operation models to approximate different operation conditions. Then, multiple subcontrollers are designed for the multiple operation models to suppress the nonlinearity and time-varying dynamics of WWTP. Second, a knowledge-data-driven framework, based on data sharing and knowledge-driven mechanisms, is developed to learn the subcontrollers. Then, the internal data and external knowledge can be fully leveraged to improve the control accuracy. Third, the stability of the proposed control strategy is given in detail. The corresponding stability conditions are provided to guide its application. Finally, the control performance is confirmed on the benchmark simulation model No. 1. The results demonstrate that the proposed KDFSC can achieve excellent control performance.
Short note on Developmental Biology

Developmental biology is the study of how a number of interconnected mechanisms result in an organism's diverse shapes, sizes, and structural features as it progresses from embryo to adulthood, or more broadly over a life cycle. It is a model of contemporary experimental biology, focusing on phenomena that have perplexed natural philosophers and scientists for over two millennia. Because of the possible importance of developmental biology [1] for understanding evolution, the theme of reductionism in genetic theories, and increased attention to the specifics of specific research projects, such as stem cell biology, developmental biology has piqued the interest of philosophers of biology. Developmental biology exhibits a diverse set of content and philosophical practices that can be scrutinized in order to better comprehend the theoretical rationale used in experimental life science. This entry briefly summarizes some key ontogenetic phenomena before delving into four domains that represent the importance and potential of philosophical reflection on developmental biology epistemology.