Miracle-dz/UniFAR-FTUs huggingface dataset:
Application of active flow control to a finite swept wing

The performance of a semi-span wing, based on a NACA 0012 airfoil section, equipped with a 30% simple flap and a linear array of fluidic oscillators, was investigated experimentally in regards to the application of active flow control. The significance of wing sweep, aspect ratio and tip shape on the efficiency of this actuation technique was assessed. The semi-span wing was suspended from the wind tunnel ceiling through a six-component balance, and could be rotated relative to the oncoming freestream. Three sweep angles were considered (0° and ±45°). The aspect ratio was adjustable while maintaining the sweep angle. The wing incidence, its flap deflection, the level and distribution of actuation were the additional independent parameters investigated. The experiments were carried out at Reynolds numbers varying between 300,000 and 500,000. The boundary layer was tripped in order to fix the location where transition to turbulence occurs. In contrast to the unswept wing equipped with fluidic oscillators, the swept wing required a substantially lower input level of actuation to improve the generated lift and to alter its pitching moment, provided the aggregate number of the actuators used was small and were sparsely spaced. Under these conditions, the actuators acted as fluidic fences that re-orientated the flow by reducing its spanwise component or even eliminating it locally. Therefore, the aerodynamic characteristics could be changed on demand. Controlling the flow component parallel to the leading edge was effective at low angles of attack or flap deflection angles. At higher incidence or flap deflection, the focus of active flow control had to shift to the component normal to the leading edge, overcoming a high adverse pressure gradient that requires a much higher level of input and closely spaced actuators. Force and pressure measurements were carried out in both cases as well as flow visualization using tufts.
Electric Machines and Power Systems

In this book an analysis of a-c and d-c electric machines is presented. All aspects of machine theory and applications are covered including electronic control of a-c and d-c motors as well as the novel stepper motors. Also included are topics such as the parallel operation of synchronous generators, transient and subtransient reactances, and the dynamical behavior of the prime mover synchronous generator coupled system in preparation for the study of power systems. The important power system components (such as generators, motors, transformers, and transmissions lines) are treated too in terms of positive-, negative-, and zero-sequence components so that they may be properly represented when investigating power system performance under stressful conditions of the various faults. Suitable parameters for unbalanced operation are described and the text concludes with an extensive exposition of fault calculations protective relaying.
The characterisation and automatic classification of transmission line faults

iv CONTENTS v LIST OF FIGURES viii LIST OF TABLES x ACRONYMS xii 1. INTRODUCTION 1 1.1 Improving Transmission Reliability 2 1.2 Objective and Research Hypothesis 3 1.3 Thesis Structure 4 2. CAUSES OF TRANSMISSION LINE FAULTS 6 2.1 Characteristics of Major Fault Causes 8 2.2 Waveform Characterisation for Event Classification 17 2.3 Statistical Pattern Recognition and Classification 22 2.4 Classification of Power System Events 24 Fred Nicolls 14/2/27 5:36 PM Deleted: 5
Running title: Recombination in asexual Daphnia pulex

No support for a meiosis suppressor in Daphnia pulex: Comparison of linkage maps reveals 1 normal recombination in males of obligate parthenogenetic lineages. 2 Running title: Recombination in asexual Daphnia pulex 3 Cécile Molinier, Thomas Lenormand, Christoph R. Haag 4 1 CEFE, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France 5 corresponding author: Cécile Molinier, cecile.molinier@cefe.cnrs. fr, 6 cecilemolinier94@gmail.com 7 Author contributions: 8 CH, CM, and TL conceived the study. CM conducted the analysis 9 Acknowledgements: 10 The authors are grateful to Michael Lynch for kindly providing the D. pulex strains used. 11 We thank Roula Zahab, Marie-Pierre Dubois and the GEMEX platform for help with the 12 construction of the libraries. We thank the MGX-Montpellier GenomiX platform for the 13 sequencing. We thank Pasi Rastas and Enrique Ortega-Abboud for helpful comments during the 14 maps’ construction. This work was funded by grant ANR-17-CE02-0016-01, GENASEX, from the 15 French National Research Agency. The authors declare no conflicts of interest. 16 Data availability: 17 Linkage maps including all anchored markers and their positions are given in File S1. RAD-seq 18 data on parents and offspring of the two crosses would be available upon acceptance of the 19 manuscript on NCBI. 20
Improved offset-compensation schemes for switched-capacitor circuits

Novel switched-capacitor stages which are free from the effects of op-amp DC offset voltage are described. The op-amps used in the stage need not slew between the desired output voltage and the offset voltage as in previously described offset-free circuits. The use of the new scheme in general applications is also discussed.
Tuning a resonant energy harvester using a generalized electrical load

A fundamental drawback of vibration-based energy harvesters is that they typically feature a resonant mass/spring mechanical system to amplify the small source vibrations; the limited bandwidth of the mechanical amplifier restricts the effectiveness of the energy harvester considerably. By extending the range of input frequencies over which a vibration energy harvester can generate useful power, e.g. through adaptive tuning, it is not only possible to open up a wider range of applications, such as those where the source frequency changes over time, but also possible to relax the requirements for precision manufacture or the need for mechanical adjustment in situ. In this paper, a vibration-based energy harvester connected to a generalized electrical load (containing both real and reactive impedance) is presented. It is demonstrated that the reactive component of the electrical load can be used to tune the harvester system to significantly increase the output power away from the resonant peak of the device. An analytical model of the system is developed, which includes non-ideal components arising from the physical implementation, and the results are confirmed by experiment. The − 3 dB (half-power) bandwidth of the prototype energy harvester is shown to be over three times greater when presented with an optimized load impedance compared to that for the same harvester presented with an optimized resistive only load.
From “Do-It-Yourself” to “Direct-to-Consumer”

Introduction! tDCS and the rise of the DIY/home use movement! Practices of do-it-yourself brain stimulation! how do home users draw upon scientific knowledge? Regulation of consumer tDCS devices! how do consumer tDCS devices fit into the existing US regulatory ! framework? Introduction! tDCS and the rise of the DIY movement! Practices of do-it-yourself brain stimulation! how do home users draw upon scientific knowledge? Regulation of consumer tDCS devices! how do consumer tDCS devices fit into the existing US regulatory ! framework? Deep brain stimulation (DBS)! Transcranial magnetic stimulation (TMS)! Transcranial direct current stimulation (tDCS)! Wexler, A. (2015). " Understanding the practices of the do-it-yourself brain stimulation community: implications for regulatory proposals and ethical discussions.
Wavelets, subband coding, and best bases

The emergence of wavelets has led to a convergence of linear expansion methods used in signal processing and applied mathematics. In particular, subband coding methods and their associated filters are closely related to wavelet constructions. We first review such constructions with a signal processing perspective. We then discuss the idea behind signal adapted bases and associated algorithms before showing how wavelets and subband coding methods are used in signal compression applications.
IMPACT OF THE IRRIGATION OF THE APRICOT TREES ON THE ORGANOLEPTIC FRUITS QUALITY

The research purpose was to establish the most efficient/suitable strategy for apricot irrigation, in order to obtain high fruits quality, with great aspect, firmness and taste. The apricot trees of ‘Orizont’ Romanian cultivar were irrigated in three variants: fully irrigated FI (V1 = non hydric stress) according to the irrigation needs (100% of ET), low irrigation LI (V2 = partial hydric stress) irrigated with half of water the amount (50% of ETc) and non-irrigated trees, representing the control NI (V3 = hydric stress). After the harvest, the fruits were stored in different storage options: at 20-22oC (room temperature), 10-12°C (refrigerant conditions) and at 3-5oC (cold storage), with and without modified atmosphere for different periods of time. At the harvest moment and after that, a couple of determinations were made, as concern the organoleptic quality of the fruits (aspect, firmness and taste). The results revealed that the organoleptic quality of the apricots at the time of the harvest and its evolution during storage, varied according to the irrigation schedule. Thus, the highest values of the organoleptic parameters were obtained at the non-irrigated variant, followed by the low irrigated variant.
Dynamic Activity Generation Model Using Competing Hazard Formulation

Rule-based activity scheduling microsimulation models often generate activities for individuals to engage in randomly, on the basis of observed activity rates from survey data. These microsimulation models try to represent more closely the process of activity pattern development. However, the dynamics underlying the activity generation process are often not considered, especially in regard to competition between activities for the limited time resource. This work, then, develops a methodology for generating activities on the basis of the time since the last activity of the same type was generated, by using a hazard-based formulation. In addition, the model explicitly accounts for the competition between activities through the use of a competing hazard framework. The results show that observed activity rates and temporal distributions from survey data can be replicated through simulation of the model in an activity-based scheduling model, the agent-based dynamic activity planning and travel scheduling (ADAPTS) activity scheduler.
Flight Modeling and Experimental Autonomous Hover Control of a Fixed Wing Mini-UAV at High Angle of Attack

The usefulness of mini unmanned aerial vehicles has been proven by several applications in the domain of reconnaissance, surveillance and search-and-rescue applications in dangerous areas. This paper describes the development of a xed-wing mini-UAV platform, the sensing and guidance and control systems for use in laboratory, indoor and outdoor ight testing. The systems developed are demonstrated with autonomous hover experiments on the UAV. Furthermore, an ecient way of modeling the dynamics of the vehicle is presented and supported with experimental data obtained during autonomous hover and high angle of attack ight experiments.
Evaluation of Loop-Mediated Isothermal Amplification for the Detection of Salmonella from Poultry Matrices

Loop-mediated isothermal amplification (LAMP) has emerged as an alternative to PCR based methods for detection of food-borne pathogens, offering simple, easy to use, detection technology with high speed, efficiency, sensitivity and specificity. The performance of LAMP-bioluminescent assay as an alternative method for the detection of Salmonella in primary production samples, poultry rinses and raw poultry products compared to PCR was evaluated. After enrichment, boot swabs from poultry farms, carcass rinses and raw poultry products were tested by a LAMP-bioluminescent and a PCR assay. The LAMP-bioluminescent assay was able to detect Salmonella in the various matrices tested and had higher or equivalent sensitivity and specificity to the PCR method used. No significant difference (95% confidence interval) was found between the LAMP and PCR method as determined by probability of detection analysis. The Salmonella LAMP-bioluminescent assay enabled reliable and rapid detection of Salmonella in variety of poultry matrices and is an acceptable alternative to the PCR method.
Aerodynamic Design of High-Perf ormance Biplane Wings

LTHOUGH biplanes were quite popular during the early days of aviation, they had virtually disappeared from service by the mid-1930's. The biplane seemed to be plagued by inherently high drag and low maximum lift coefficient. The purpose of the present study was to re-examine the reasons for the biplane's decline. It was found that for any practical biplane configuration, it is possible to design a wing system which has a much lower weight per unit area and which has essentially the same maximum useable lift coefficient as that of a comparable, well-designed, monoplane wing, in either clean or flapped configurations. Improvements in the design of fairings permit large drag reductions, relative to the earlier designs. Because of these improvements, it is possible to design a biplane whose performance is superior, for some applications, to that of a well-designed monoplane. These applications are those for which excellent low-speed maneuverability, good short-field performance, good loadcarrying ability, low cost, and rugged construction are of primary importance. Content If a biplane wing system is to develop a high CLmax, both wings must stall nearly together. A method presented by Fuchs was used to identify those configurations for which a good stall match could be obtained. Each wing is idealized in this method as a single horseshoe vortex, with the bound part of each vortex located at the center of pressure. Satisfactory stall match was defined as a ratio of leading wing to trailing wing Coequal to unity at an assumed CLmax for the combination. Some results of this analysis are given in Fig. 1, and some nomenclature is defined in the sketch. The airfoil chord lines are parallel; results of this study showed no advantage to be gained from the use of decalage. The geometric stagger angle a for best stall match is quite insensitive to the gap/chord ratio, and it decreases as the aspect ratio increases. The best stall match always corresponds to small values of 0, the aerodynamic stagger angle. The chordwise variation in vertical velocity induced by one airfoil upon the other corresponds to a local curvature of the flow. Since within the framework of thin airfoil theory, this effect is identical to the effect of a change in the mean camber line, it will be referred to as induced camber. Data for NACA airfoils of the four- and five-digit series show increases in the maximum section lift coefficient Cfmax
Input filter design for thyristor converter with LCL' configuration

Using PSpice, a simple and practical design method for the input filter of a thyristor converter is presented. The LCL input filter configuration is selected in the view of its effectiveness and simplicity. The order of the domains of the constraint function and object function is decreased to 1-dimensional so that the design process becomes both fast and simple. The application scope ranges for various kinds of thyristor power converters and practical input/output conditions can be considered. <<ETX>>
Driving behaviour with ACC and the acceptance by individual drivers

This paper presents an overview of the project performed within the research programme "Technology Assessment Automatic Vehicle Guidance" concerning individual driver behaviour and acceptance of adaptive cruise control (ACC). It describes and discusses the results of a questionnaire study and two experimental driving simulator studies. It is concluded that under certain conditions and limitations ACC is a promising technology in traffic.
Interval Reliability Based Condition Assessment of Bridges

Recent research indicates that small changes in input parameters of reliability models significantly affect outcomes of reliability computations. This is a considerable concern especially in reliability based condition assessments of old bridges which have lower reliabilities. To overcome such errors of input parameters, structural reliability can be combined with interval analysis (i.e., interval reliability). This paper presents an interval reliability based condition assessment procedure of bridges. Interval reliability of a component is introduced when resistance and load behave as: (1) normal variables; (2) log normal variables. Similarly, interval reliabilities of other components can be estimated. Finally, system interval reliability is estimated. Bridge condition is assessed by comparing with the acceptable reliability of the bridge. A case study, a steel girder bridge, is selected, and its interval reliability indices are estimated for possible errors of statistical parameters. The obtained results are then compared with an existing method without considering interval reliability. Results indicate that there are significant variations in reliability when interval reliability is considered.
Improvement of Bronchial Immune Hypersensitivity Reaction Using Extracts from Chrysanthemum morifolium Ramatuelle and Scutellaria baicalensis Georgi

Chrysanthemum morifolium Ramatuelle and Scutellaria baicalensis Georgi (skullcap) have been used as safe raw materials for drinking or as traditional medicines in Korea. In this study, we investigated the potential therapeutic effects of ovalbumin-induced asthma in a mouse model. After establishing the model, mice were treated with a mixture of chrysanthemum and skullcap extracts at different mixing ratios (6 : 4, 7 : 3, and 8 : 2). Immune cell counts and the production of various inflammatory cytokines were measured using biochemical tests. Among the mixtures tested, the 7 : 3 ratio (CS73) showed the most pronounced effects. CS73 significantly reduced the levels of the inflammatory cytokines interleukin- (IL-) 1β, IL-4, IL-5, IL-6, IL-10, IL-13, IL-17A, IL-17F, and IL-17E in the serum and bronchoalveolar lavage fluid of asthmatic mice. In addition, CS73 treatment significantly increased the production of IL-2 and interferon-γ and decreased the production of immunoglobulin E, histamine, and thymic stromal lymphopoietin in asthmatic mice compared to the control group. Our results suggest that the combination of chrysanthemum and skullcap extracts, especially at a 7 : 3 ratio, can be used to improve bronchial health and contribute to improved public health.
Population, Income, and Ecological Correlates of Child Pedestrian Injury

Pedestrian injury is a significant health problem among urban children. This study is an analysis of the role of population, income, and ecological factors in the occurrence of child pedestrian collisions. One hundred and ninety-eight motor vehicle collisions occurring in Hartford, Connecticut involving pedestrians younger than 15 years old were reported to police during 1986 through 1987. Collision locations were abstracted from police reports and assigned a census tract. Census tracts were classified as "high frequency" (8+ collisions), "moderate frequency" (3 to 7 collisions), or "low frequency" (0 to 2 collisions). High-frequency census tracts had greater proportions of children and of nonwhite residents than moderate- or low-frequency tracts. They also were characterized by high proportions of households headed by females living below the poverty line. High-frequency tracts had a greater number of children per acre than moderate or low tracts. Children per acre had the strongest association with collision frequency (R = .72) and remained the most consistent when other variables were controlled. The number of children per acre is a potentially useful predictor of census tracts at risk for child pedestrian collisions. This may be useful in developing focused prevention strategies within an urban environment.
Probabilistic seismic hazard analysis: Early history

Probabilistic seismic hazard analysis (PSHA) is the evaluation of annual frequencies of exceedence of ground motion levels (typically designated by peak ground acceleration or by spectral accelerations) at a site. The result of a PSHA is a seismic hazard curve (annual frequency of exceedence vs ground motion amplitude) or a uniform hazard spectrum (spectral amplitude vs structural period, for a fixed annual frequency of exceedence). Analyses of this type were first conceived in the 1960s and have become the basis for the seismic design of engineered facilities ranging from common buildings designed according to building codes to critical facilities such as nuclear power plants. This Historical Note traces the early history of PSHA. Copyright © 2007 John Wiley & Sons, Ltd.
Conception d’une tête radiofréquence auto adaptative au milieu de propagation pour les applications médicales

L'impedance d'entree d'une antenne miniature est fortement affectee par des facteurs environnementaux a l'origine de pertes de puissance reduisant l'efficacite energetique des tetes radiofrequences dans les applications RF, en particulier dans la telemetrie des implants cardiaques. Le but de mes etudes est de developper une unite de calibration d'impedance d'antenne tres faible consommation capable d'adapter toute variation de l'impedance d'entree de l'antenne a l'impedance de la source radiofrequence. La premiere partie de mon etude est axee sur la conception au niveau systeme d'une approche nouvelle de calibration automatique du systeme. Un reseau d'adaptation automatique d'impedance sans coupleur et fonctionnant de facon directe est etudie et permet d'optimiser la taille du dispositif, la vitesse de l'adaptation, la consommation d'energie et les performances globales. Deuxiemement, une nouvelle methode de synthese du reseau d'adaptation variable est proposee pour reduire fortement la complexite globale de l'algorithme d'adaptation. La troisieme partie de mon etude est axee sur la fabrication d'un demonstrateur hybride fonctionnant dans la bande medicale MICS afin de valider le concept auto adaptatif d'impedance. Un banc experimental qui comprend une antenne immergee dans son milieu connectee au demonstrateur pilote par un microcontroleur a ete mis en place et a permis d'atteindre un coefficient de reflexion jusqu'a -30dB avec un temps de calibration inferieur a 1ms. La derniere partie de mon travail consiste a concevoir le circuit d'adaptation automatique d'impedance d'antenne tres faible consommation fonctionnant dans la bande ISM 2.4GHz en utilisant la technologie CMOS 0.13um.