Miracle-dz/UniFAR-FTUs huggingface dataset:
Microgrid Control Strategy

The energy sector is moving into the era of distributed generation (DG) and microgrids (MGs). The stability and operation aspects of converter-dominated DG MGs, however, are faced by many challenges. To overcome these difficulties, this paper presents a new large-signal-based control topology for DG power converters that is suitable for both grid connected and islanding modes of operation without any need to reconfigure the control system and without islanding detection. To improve MG stability and to guarantee stability and high performance of the MG system during sudden harsh transients such as islanding, grid reconnection, and large load power changes, a nonlinear MG stabilizer is proposed. We propose a novel control topology for microgrids which can work in both grid connected and islanding modes without reconfiguration so it does not require islanding detection technique, the controller is based on the concept of synchronverter In this paper, a radical step is taken to improve the synchronverter as a self-synchronized synchronverter by removing the dedicated synchronization unit. Keywords: Distributed generation(DG),Grid-connected, Microgrid (MG), Point of Common Coupling (PCC), Synchronverter.
Predicting the ultimate axial load capacity of joints formed using V-band retainers

V-band retainers are widely used in the automotive, aircraft and aerospace industries to connect a pair of circular flanges to provide a joint with good axial strength and torsional rigidity. V-band retainers are manufactured using a cold roll forming process. Despite their wide application, once assembled to a pair of flanges little is known about the interaction between flange and band. Moreover the failure mode of V-band retainers when applying an axial load is not fully understood. In this thesis the ultimate axial load capacity of V-band retainers is predicted using finite element and theoretical models and validated using experimental testing. It was shown that the ultimate axial load capacity was strongly dependent on the joint diameter, increasing between 114mm and 235mm, and decreasing beyond that. Moreover, the peak in ultimate axial load capacity was dependent on parameters such as the axial clamping load and coefficient of friction, and its position lay between 235mm and 450mm, as predicted by the finite element models. Other geometrical parameters such as flange and band thickness showed large impacts on the ultimate axial load capacity as well. A theoretical model was developed that allowed the ultimate axial load capacity to be calculated from a single formula for larger bands and using a simple algorithm for smaller bands. This model supported the findings that, depending on the band diameter, the ultimate axial load capacity had a peak, but predicted its position at approximately 181mm. This position at 181mm was validated by the experimental data. However, when compared to the tests, the finite element and theoretical models both over-predicted the ultimate axial load capacity. Both the finite element models and practical tests showed that for small V-bands axial failure is due to a combination of section deformation and ring expansion, whereas large V-bands fail due to ring expansion only. These two distinct types of behaviour were incorporated into the theoretical model. The hardness development throughout the cold roll forming process was predicted using finite element models. This was validated by hardness measurements, for which a new technique was generated, that directly linked plastic strain and hardness values.
Telerobotic Excavator Designed to Compete in NASA's Lunabotics Mining Competition

The second annual NASA Lunabotics Mining competition is to be held in May 23-28, 2011. The goal of the competition is for teams of university level students to design, build, test and compete with a fully integrated lunar excavator on a simulated lunar surface. Our team, named Lunar Solutions I, will be representing Temple University's College of Engineering in the competition. The team's main goal was to build a robot which is able to compete with other teams, and ultimately win the competition. The main challenge of the competition was to build a wireless robot that can excavate and collect a minimum of 10 kilograms of the regolith material within 15 minutes. The robot must also be designed to operate in conditions similar to those found on the lunar surface. The design of the lunar excavator is constrained by a set of requirements determined by NASA and detailed in the competition's rulebook. The excavator must have the ability to communicate with the "main base" wirelessly, and over a Wi-Fi network. Human operators are located at a remote site approximately 60 meters away from the simulated lunar surface upon which the robot must excavate the lunar regolith surface. During the competition, the robot will operate in a separate area from the control room in an area referred to as the "Lunarena. " From the control room, the operators will have to control the robot using visual feedback from cameras placed both within the arena and on the robot. Using this visual feedback the human operators control the robots movement using both keyboard and joystick commands. In order to place in the competition, a minimum of 10 kg of regolith material has to be excavated, collected, and dumped into a specific location. For that reason, the robot must be provided with an effective and powerful excavation system. Our excavator uses tracks for the drive system. After performing extensive research and trade studies, we concluded that tracks would be the most effective method for transporting the excavator. When designing the excavation system, we analyzed several design options from the previous year's competition. We decided to use a front loader to collect the material, rather than a conveyer belt system or auger. Many of the designs from last year's competition used a conveyer belt mechanism to mine regolith and dump it into a temporary storage bin place on the robot. Using the front end loader approach allowed us to combine the scooping system and storage unit, which meant that the excavation system required less space.
Controlled Release: A Quantitative Treatment

The concept of controlled release has attracted increasing attention over the last two decades, with the applications of this technology proliferating in diverse fields in cluding medicine, agriculture and biotechnology. Research and developmental efforts related to controlled release are multiplying in both industry and academia. The reason for this phenomenal growth is obvious. The use of a variety of biologically active agents, such as drugs, fertilizers and pesticides, has become an integral part of modern society. Along with the use of these reagents has evolved an awareness that their uncontrolled application almost inevitably induces harmful effects on the health of humans and their surrounding environments. To eliminate or minimize these harmful effects necessitates the controlled release of these chemicals. Moreover, the controlled release of substances, not usually considered toxic or hazardous, e.g., some catalysts and nutrients, can enhance their effectiveness. The number and variety of controlled release systems, differing in their physical and chemical makeup, are increasing rapidly. Proliferation almost always demands correlation, generalization and unification; it requires both the development of underlying theories of their behavior and the mechanistic interpretation of their performance. This, in turn, requires a statistical and mathematical (quantitative) treatment of the scientific information and technical data pertaining to them. A quantitative treatment can also facilitate the formulation of procedures for computer-aided design of these systems through a priori prediction of their per formance for a variety of design parameters. "
Intravenous injection of butorphanol prevents shivering of parturients undergoing cesarean section under epidural anesthesia: a randomized controlled trial

Background The objective of this study was to assess the inhibitory effect of intravenous injection of butorphanol on the shivering in those parturients who underwent cesarean section (CS) under epidural anesthesia (EA). Methods 160 parturients planned for elective CS under EA were enrolled and finally 155 of them were included in this trial and randomly allocated to 4 groups. Before epidural anesthesia, parturients in Group A, B and C were respectively injected 7. 5μg/kg, 5μg/kg and 2. 5μg/kg butorphanol (100ug/ml) while none in Group D was given any drug. The incidence, duration and intensity of shivering, hemodynamic parameters of parturients, Apgar score of neonates, analysis of blood gas of umbilical cord and adverse events were recorded. Results The demographic characteristics of parturients of the four groups were similar. Compared with the control group (Group D), statistically significant attenuation of shivering was seen in the parturients of Group A and Group B. The incidence, intensity and duration of shivering of the Group A and Group B were all lower than those of the control group, but there was no statistical difference in the incidence, severity or duration time of shivering among groups receiving butorphanol. No patient displayed grade 4 shivering. There were no significant differences among the groups with mean arterial pressure (MAP), heart rate (HR), pulse oxygen saturation (SpO2), respiratory rate (RR) after administration of butorphanol. The incidences of most adverse effects such as nausea and vomiting, respiratory depression, and hypotension were also not seen statistical difference among the four groups. However, compared with other three groups, sedation parameter increased in Group A. Compared with Groups C and Group D, incidences of dizziness increased in Group A and Group B. There was no significant difference in Apgar score, PH, PCO2, PO2, HCO3- and lactic acid value among the newborns of the four groups. Conclusion The prophylactic administration of intravenous butorphanol 0. 75μg/kg or 0. 5μg/kg is effective on inhibiting shivering and can be safely used in parturients undergoing CS under EA, but 0. 5μg/kg is more suitable because of less sedation. Dizziness of parturients should be monitored whichever dose is used.
HYDRODYNAMIC RESISTANCE CHARACTERISTICS OF HUMANS, DOLPHINS AND SHIP FORMS

This paper presents an overview of research carried out at the Maritime Research Institute Netherlands (MARIN) on the subject of human swimming. The results obtained of an experimental study relative to the resistance properties of a bottle-nosed dolphin are also reviewed. The hydrodynamic resistance characteristics of various humans are then compared to those of the dolphin and various ship forms in order to obtain a quantitative impression of the human body with respect to its resistance to forward motion in water.
Latest Miocene (Kapitean/Messinian) glauconite and the central Chatham Rise greensand: an enigmatic, highly condensed, relict/palimpsest deposit on the modern seafloor

ABSTRACT A unique 10–140 cm thick veneer of greensand and glauconite-rich deposits (10–80 wt% glauconite) presently sits atop central Chatham Rise (CR) in water depths of 200-500 m. The glauconite is dominated by chemically mature, polished ovoidal and lobate pellets, with a 10–12 Å phyllosilicate structure and K-Ar ages of 7–5 Ma, indicating that the glauconite pellets are predominantly allogenic (i.e. derived/reworked) grains, and not of in situ authigenic origin. Glauconite possibly evolved from seafloor alteration of detrital and/or volcanogenic smectitic clays, likely concentrated within organic-rich faecal pellets under unique paleoceanographic conditions (nutrient cycling, upwelling, carbon isotope gradients) within the latest Miocene Subtropical Front. The distribution of glauconite abundance suggests a ‘glauconite factory’ existed at this time about Reserve Bank on western central CR. The pellets were dispersed eastwards along the crest by intensified bottom currents within the dynamic Subtropical Frontal zone, perhaps during the numerous glacial periods of lowered sea level throughout the Plio-Quaternary. The bioturbated greensand veneer, and its mix of other reworked Neogene and Quaternary skeletal, phosphatic and siliciclastic components, rest unconformably on mainly Early Oligocene chalks, forming a highly condensed, relict/palimpsest deposit that alone embodies the last up to 30 My of sedimentation history atop central CR.
Psychoactive substances and driving: State of the art and methodology

The purpose of this work is to define the role of the intake of drugs, drugs of abuse, and alcohol in determining the disability to drive, aiming at correlating and combining findings from epidemiological studies examining the incidence of drugs in various subpopulations of road users with results from a review of the recent literature on psychomotor performance and drugs. Analysis of the literature was carried out by processing and classifying the data, to extrapolate and assess results reported in empirical works. Classifications and conclusions consider studies on the interaction between drugs or drugs of abuse and alcohol. The problem of pharmacological interaction is presented after preliminary examination of the general mechanisms of action of the drugs and the best-known types of interaction among classes of psychoactive substances. Lastly, the problems of methodology and content that emerged during the review are addressed.
Effects of compressive residual stress on bending propagation behaviour of fatigue crack

Testing for bending fatigue crack propagation under mixed-mode condition was carried out using fatigue and annealed slant pre-cracks with different slant angles, �, defined as the angle between loading and crack directions in a rectangular plate. As a result, bending fatigue crack from the fatigue pre-crack with � = 45 deg propagated under mixed-mode condition with mode I and II stress intensity factors KI and KII , while bending fatigue cracks from the fatigue pre-crack of � = 60 deg and from the annealed pre-cracks with both slant angles of � = 60 deg and � = 45 deg propagated under mode I crack behavior. Furthermore, the estimated fracture angles calculated by maximum tangential criterion using the stress intensity fac tors, KI and KII , are in good agreement with the measurement ones except the fatigue pre-crack of � = 45 deg at the initial premium propagation. That is to say fatigue crack propagation behavior was effected by compressive residual stress around pre-crack while the slant angleis smaller (such as � = 45 deg in this study). But the effect was disappeared ifbecame bigger (such as � = 60 deg.).
Modernization of the system maintenance the machines line hor 6000

Article concerns maintenance strategy for HOR 6000 production line machines, which is realized during their exploitation. The main goal of the article is to po int at weak points of HOR 6000 production line and justification of the proposal of going from plan-preventive strategy to technical condition valuation strategy for HOR 6000 production line machines.
Use of Third‐party Aircraft Performance Tools in the Development of the Aviation Environmental Design Tool (AEDT)

This report documents work done to enhance terminal area aircraft performance modeling in the Federal Aviation Administration’s Aviation Environmental Design Tool (AEDT). A commercially available aircraft performance software tool was used to develop data in a form usable by the AEDT. These data were compared to actual aircraft performance data measured by flight data recorder systems. The terminal area fuel consumption data were shown to average about 2% different from the measured fuel consumption for departures and about 5% different for arrivals.
IMPLIMPLICAÇÕES JURÍDICO-TRIBUTÁRIAS DA UTILIZAÇÃO DE BITCOINS NO BRASIL

The present work seeks, from a theoretical and qualitative methodology and a form of exploratory study, to understand what the legal tax treatment, i.e. the qualification and the legal implications, of the use of the Criptomoeda called Bitcoin, in Brazil, as well as, to investigate whether the current norms give an account of such treatment. Thus, using the bibliographical revision, through relevant academic scientific productions, seeks to undertake a broad approach to the virtual currencies and its tax legal implications in Brazil. It is justified by the fact that it is currently living in a reality often called the "Information Age", where the widespread use of computers and computer networks interferes in such a way in the life of the contemporary society that was able to create a New kind of economics, called Virtual.
High-speed photonic devices

Introduction Nadir Dagli Electroabsorption (EA) Modulators and EA Modulators Monolithically Integrated with Distributed-Feedback Lasers Koichi Wakita High-Speed LiNbO3 Optical Modulators Osamu Mitomi III-V Compound Semiconductor Electro-Optic Modulators Nadir Dagli High-Speed Polymer Optical Modulators and Their Applications Harold R. Fetterman and William H. Steier High-Speed Photodetectors and Photoreceivers Patrick Fay IC Technologies for Future Lightwave Communication Systems Taiichi Otsuji High-Speed All-Optical Technologies for Photonics Masatoshi Saruwatari Index
THE PRESENCE OF VARIOUS POPULATIONS OF CIRCULATING TUMOR CELLS IN THE BLOOD OF BREAST CANCER PATIENTS BEFORE TREATMENT: ASSOCIATION WITH FIVE-YEAR METASTASIS-FREE SURVIVAL

Localized and metastatic tumors are known to lead to the formation of circulating tumor cell (CTC ) clusters in the blood. Currently, there is a heightened interest in the study of molecular and biological characteristics of CTC s. Recent studies have shown the presence of different populations of CTC s in the blood of cancer patients. Some cells are cancer stem cells, some tumor cells undergo epithelial-mesenchymal transition (EMT), and most CTC s do not have features of either stem cells or EMT.The aim of the study was to evaluate the five-year metastasis-free survival rate in patients with invasive breast carcinoma, depending on the presence of various populations of circulating tumor cells in the blood before treatment.Material and Methods. A prospective study included 47 patients with newly diagnosed invasive breast cancer (T1–4N0–3M0), who were treated at Cancer Research Institute, Tomsk National Research Medical Center. The patients aged 31 to 69 years. The presence of different populations of CTC s in the blood of patients before treatment was determined by multicolor flow cytometry on the BD FACS Canto system, using different fluorochrome-labeled monoclonal antibodies to EpCam, CD 45, CD 44, CD 24, and N-cadherin. Five-year metastasis-free survival was evaluated by the Kaplan–Meier method. The differences were considered significant at p<0.05. Results. The results obtained demonstrated that the presence of both stem-like and non-stem CTC s showing signs of EMT with Epcam+CD 45-CD 44-CD 24-Ncadherin+, Epcam+CD 45-CD 44+CD 24-Ncadherin+, and Epcam(m)- CD 45-CD 44+CD 24-Ncadherin+ phenotypes in the blood of breast cancer patients before treatment reduced the five-year metastasis-free survival rate (p=0.0016, p=0.017 and p=0.011, respectively). Conclusion. Thus, CTC s in the EMT state are informative for liquid biopsy to assess the risk of hematogenous metastasis and can be considered as targets for selection of personalized chemotherapy.
DER NEUE BRAKE ASSIST VON MERCEDES-BENZ - AKTIVE FAHRUNTERSTUETZUNG IN NOTSITUATIONEN -

Mercedes-Benz hat als weltweit erster Automobilhersteller ein elektronisch gesteuertes System zur Verkuerzung des Bremsweges in Notsituationen entwickelt. Das System, der Brake-Assist (BAS), gehoert seit Dezember 1996 bereits zur Serienausstattung der S-und SL-Klasse. Bis Mitte 1997 ist er auch in den anderen Pkws der Herstellerfirma serienmaessig enthalten. Der BAS baut schon am Beginn der Bremsung binnen Sekundenbruchteilen automatisch die maximale Bremskraftverstaerkung auf und verkuerzt daher den Anhalteweg erheblich. Im Beitrag werden die Ziele bei der Entwicklung des BAS erlaeutert. Ferner erfolgt eine Beschreibung des BAS und seiner Systemkomponenten. Nach Auffassung der Autoren kann der Brake Assist einen wesentlichen Beitrag zur Reduzierung der Unfallzahlen leisten. Er soll, nach einer Vorlaufzeit von einem Jahr, auch anderen Automobilherstellern angeboten werden. Titel in Englisch: The new brake assist of Mercedes-Benz - active driversupport in emergency braking situations.
Executive's Guide to COSO Internal Controls: Understanding and Implementing the New Framework

Beyond CosoExecutive's Guide to COSO Internal ControlsEnterprise Risk Management and COSOThe Executives Guide to Insurance and Risk ManagementAudits of Property and Liability Insurance CompaniesMES Guide for ExecutivesEnterprise Risk ManagementExtraordinary CircumstancesThe Essential Guide to Internal AuditingManaging Risk in Uncertain TimesExecutive's Guide to IT GovernanceCorporate Compliance Answer BookAudit GuideInternal Controls ToolkitBig Data in PracticeCOSO Enterprise Risk ManagementThe Internal Auditor's Guide to Risk Assessment, 2nd EditionInternal Controls Policies and ProceduresReady Or NotEnterprise Risk Management and COSOThe Seven Signs of Ethical CollapseCOSO Enterprise Risk ManagementNew Auditor's Guide to Internal AuditingGovernance, Risk Management, and ComplianceAgile AuditingExecutive's Guide to COSO Internal ControlsWorld-Class Risk ManagementInternal Control Audit and ComplianceExecutive Roadmap to Fraud Prevention and Internal ControlInternational Professional Practices Framework (IPPF)IT Audit, Control, and SecurityThe Risk IT Practitioner GuideCOSO Enterprise Risk ManagementInternal Control StrategiesAuditing CasesPractical Enterprise Risk ManagementAn Executive's Guide to Information TechnologyCOSO Enterprise Risk Management CertificateThe Executive's Guide to Financial ManagementFinancial Internal Controls Best Practices
As you desire me: mothers, babies and football managers

'I think you've got to have a good relationship with your team and with your players – you've got to have a good trusting relationship with them. there has to be a balance – whether you call it respect or trust. Our job is to make the team better and to make the players better – individually and collectively. Our job is to make. to get success we need to put it together to make it better. And the players need to trust what you’re telling them is right. ' Manager 10 All human life exists within football, and especially within football management. This paper outlines themes that emerged in a four-year study into the development and training of managers operating in fast-paced change: one which utilised the critical case of English football managers. One of the main and unexpected findings occurring in the research was that the manager and his charges were involved in reproducing elements of the most primal of relationships – that of the mother/infant. It transpired that the manager's ability to reproduce good mother features was crucial in terms of holding the anxiety generated by the location of the football environment in turbulence. The paper will outline how this relationship was manifest within the data and provides a short case study indicating what can occur when this relationship between the manager/mother and infant/player is absent and the 'good enough' mother is replaced by a castrating father.