Miracle-dz/UniFAR-FTUs huggingface dataset:
Ultracapacitor assisted regenerative braking in metropolitan railway systems

This paper investigates the use of ultracapacitors as an energy storage system for metropolitan railway systems. The basic concept is to take advantage of the energy generated during the braking process of trains, which is otherwise wasted and transformed into heat. A power system simulation was created as a tool to analyze the behavior of a stationary ultracapacitor bank connected to the Metro system. Ultracapacitor modules were dimensioned adequately, power electronic elements were adjusted and further a control system was established. Amongst others the simulation demonstrates the impact of varying the distance between ultracapacitors and traction power substation. Furthermore the dependency of the ultracapacitor's technical specifications on charging and discharging behavior is shown. The simulation allows a large number of parameters to be modified through the easy-to-handle user interface. A scientific method is provided to analyze ultracapacitor assisted regenerative braking of metropolitan railway systems. As an example the Metro of Medellín in Colombia is applied and rounded out by an estimation of economic viability.
Observer Design for Nonlinear Systems Under Unknown Time-Varying Delays

The design of observers for nonlinear systems with unknown, time-varying, bounded delays, on both state and input, still constitutes an open problem. In this technical note, we show how to solve it for a class of nonlinear systems by combining the high gain observer approach with a Lyapunov-Krasovskii functional suitable choice. Sufficient conditions are provided to prove the practical stability of the observer. It is shown that the observation error is bounded and depends on the size of two parameters: the known upper bound delay of the unknown time-varying function delay and the instantaneous state dynamic variation. Furthermore, for the particular case of constant known time delay, the convergence of the proposed observer becomes exponential. The feasibility of the proposed strategy is illustrated by a numerical example.
Running Head : MARKET REACTIONS TO INFORMATION SHOCKS 1 Identifying and Predicting Market Reactions to Information Shocks in Commodity Markets CS 229 Project Report , Fall 2014

This project proposes a three-stage time series model to identify the relationship between properties of news information shocks and patterns in market reactions to such news. Then, given a specific news update, the model predicts how market players will subsequently respond. We apply multivariate time series segmentation and clustering techniques on gold commodity futures, and then run various multi-class classification algorithms on relevant news articles.
Joint Eurographics -ieee Tcvg Symposium on Visualization (2003) Adaptive Smooth Scattered-data Approximation for Large-scale Terrain Visualization

We present a fast method that adaptively approximates large-scale functional scattered data sets with hierarchical B-splines. The scheme is memory efficient, easy to implement and produces smooth surfaces. It combines adaptive clustering based on quadtrees with piecewise polynomial least squares approximations. The resulting surface components are locally approximated by a smooth B-spline surface obtained by knot removal. Residuals are computed with respect to this surface approximation, determining the clusters that need to be recursively refined, in order to satisfy a prescribed error bound. We provide numerical results for two terrain data sets, demonstrating that our algorithm works efficiently and accurate for large data sets with highly non-uniform sampling densities.
A CHECK LIST DESIGNED TO IMPROVE MEMORY RECALL AMONGST CF PATIENTS

When a Cystic Fibrosis (CF) patient/carer meets a doctor, it is the responsibility of the patient/carer to recall their medical history. Often the information imparted by the patient/carer is inaccurate due to their inability to remember their medical history accurately. Coupled with this, patients/carers often leave medical encounters unable to remember the information that has been imparted to them. These memory issues can seriously impede the doctor’s ability to correctly diagnose and treat a CF patient and the patient’s ability to adhere to the doctors’ recommendations. This paper explores: “The Memory Recall of mild to moderate Cystic Fibrosis(CF) patients/carers in routine doctor’s appointments and the impacts a simple artefact can have on memory recall, stress and empowerment”. Using Design Science Research, the artefact designed, built and evaluated to address the problem is a pretotype (a paper-based prototype) in the form of a Check List. Rigorous evaluation by CF patients, carers and respiratory clinicians’ points to the artefact’s validity and shows its contribution to memory recall, a reduction in stress, and an increase in empowerment for both CF patients and carers. The insights gained from this research will be an essential precursor to the creation of an effective digital solution.
Extracting single genomes from heterogenous DNA samples: A test case with Carsonella ruddii, the bacterial symbiont of psyllids (Insecta)

Abstract Analysis of many bacterial genomes is impeded by the inability to separate individual species from complex mixtures of cells or to propagate cells in pure culture. This problem is an obstacle to the study of many bacterial symbionts that live intracellularly in insects and other animals. To recover bacterial DNA from complex samples, we devised a method that facilitates the cloning of DNA fragments of distinctive G+C contents in order to generate shotgun DNA libraries enriched in inserts having a specific base composition. DNA preparations are first treated with a restriction enzyme having a common cleavage site in a particular genome and then shotgun cloned following size-fractionation. This method was applied to whole bacteriomes of the psyllid, Pachypsylla venusta, which harbors the bacterial symbiont Candidatus Carsonella ruddii. The resulting libraries were highly enriched in bacterial sequences. Through the use of alternate enzymes and partial digests, this technique can be adapted to yield virtually pure DNA libraries for individual bacterial species.
Facebook Use for Profile Maintenance and Social Grooming and Young Korean Women’s Appearance Comparison With Peers and Body Image Concerns

The aim of this study is to examine the relationship between Facebook use, appearance comparison with peers, and body image concerns among young Korean women. Focusing on two major types of social media activities (i.e., profile maintenance, social grooming), this study investigated whether these specific types of user activities would be significantly related to greater appearance comparison with peers, and in turn, would be linked to increased levels of body image concerns. An online survey (N = 305) was conducted among young Korean women (aged 18–29) in Korea. Results indicated that the frequency with which Korean female participants engaged in profile maintenance and social grooming activities on Facebook was positively associated with appearance comparison with peers, and the mediation analysis revealed that appearance comparison mediated the relationship between Facebook use variables and body image concerns, such as lower weight satisfaction and greater drive for thinness. Theoretical and practical implications for these findings are further discussed.
The significance of the syndromic diagnosis of the epilepsies

‘Epilepsy’ is not a single disease entity. Epilepsies are hundreds of diseases with different causes, natural histories and prognoses, requiring different short-term and long-term management. Using the inclusive diagnostic label of ‘epilepsy’ instead of a precise seizure and syndrome categorisation endangers patients with epileptic seizures both medically and socially5. It is medically incorrect to label a child with temporal lobe epilepsy and a child with childhood absence epilepsy as simply having ‘epilepsy’ just because they both have seizures. This is as unsatisfactory as giving a diagnosis of ‘febrile illness’, irrespective of whether this is due to influenza, tuberculosis, bacterial meningitis, collagen disease, or malignancy.
Security implications of the Cisco Nexus 1000V

Peterson, Benjamin D. M.S., Purdue University, May 2012. Security Implications of the Cisco Nexus 1000V. Major Professor: Phillip Rawles. Virtualization is a technology that has become increasingly popular with those wishing to reduce the energy consumption of their datacenters. This is especially true since virtualization technology allows multiple physical servers to be consolidated onto a single physical server in the form of virtual machines. Virtual networking devices have been created to allow these virtual machines to communicate amongst each other and with outside networks. Initially these virtual networking devices were crude; however, partnerships such as the one between Cisco and VMware have led to products such as the Nexus 1000V that have improved this network functionality. Despite the creation of the Nexus 1000V, the security implications of using the virtual switch have remained unclear. This research aimed to solve this. The outcomes of this research included tests of vulnerabilities previously or currently found on physical switches, an analysis of the communications used by the Nexus 1000V to support distributed switching, and an analysis of the effects of the switch existing as a virtual machine.
Ethnical and Cultural Particularity of Gluttonic Discourse

The article is devoted to ethnic perculiarity and originality of the Russian and British lingvocultures in line with gustative preferences. The influence of culture on the national environment forms the national character and mentality. Language, being the basis and product of culture, has the ability to influence the formation and development of folk culture, and as a result of their interaction has formed a new science – cultural linguistics. It is, in turn, closely linked to the ethnolinguistics. National and cultural ways of verbalization gluttonic preferences are related to the identity and originality of the Russians and the British. Ethnic particularity of gluttony creates a unique national cuisine due to the peculiarities and taste perceptions of Nations. At the same time, there is a mutual influence of national cuisines at each other, which, however, does not exclude originality of each of them. All this is reflected both at the level of the nominees of the foodstuffs consumed, and in the language of each ethnic community.
Hiding in Plain Sight: Chandra Observations of the Quiescent Neutron Star 4U 2129+47 in Eclipse

During a previous outburst phase, the neutron star 4U 2129+47 exhibited evidence for a spatially extended accretion disk corona via broad, partial X-ray eclipses occurring periodically on the 5.24 hr orbit. Since 1983, however, 4U 2129+47 has entered a quiescent state several orders of magnitude fainter. We have performed a 37 ks (≈two binary orbits) Chandra observation of 4U 2129+47 to determine whether an extended coronal structure also exists in quiescence. Total eclipses are found, and the rapidity of the eclipse ingress and egress is used to place upper limits on the size of the X-ray source. The spectrum is found to be comprised of a soft component plus a fairly hard power-law tail. The former is seen to be sinusoidally modulated over the orbital period in a manner consistent with neutral column variations, possibly due to the interaction of an accretion stream with a (small) disk about the neutron star. We fit realistic neutron star atmosphere models to the soft spectra and comment on the consistency of the spectra with cooling neutron star models. It has been previously suggested that the 4U 2129+47 system is a hierarchical triple, with the outer body being an F star. We use differential astrometry to show that the X-ray point source and F star are spatially coincident to within 0. ″1. We further compare newly determined upper limits for the extrinsic neutral column to the reddening of the F star. Finally, we discuss how future X-ray observations can further constrain models of quiescent neutron star emission as well as directly verify the triple hypothesis.
Serum and Antibodies of Glaucoma Patients Lead to Changes in the Proteome, Especially Cell Regulatory Proteins, in Retinal Cells

Purpose Previous studies show significantly specifically changed autoantibody reactions against retinal antigens in the serum of glaucoma and ocular hypertension (OHT) patients in comparison to healthy people. As pathogenesis of glaucoma still is unknown the aim of this study was to analyze if the serum and antibodies of glaucoma patients interact with neuroretinal cells. Methods R28 cells were incubated with serum of patients suffering from primary open angle glaucoma (POAG), normal tension glaucoma (NTG) or OHT, POAG serum after antibody removal and serum from healthy people for 48 h under a normal or an elevated pressure of 15000 Pa (112 mmHg). RGC5 cells were additionally incubated with POAG antibodies under a normal pressure. Protein profiles of the R28 cells were measured with Seldi-Tof-MS, protein identification was performed with Maldi-TofTof-MS. Protein analysis of the RGC5 cells was performed with ESI-Orbitrap MS. Statistical analysis including multivariate statistics, variance component analysis as well as calculating Mahalanobis distances was performed. Results Highly significant changes of the complex protein profiles after incubation with glaucoma and OHT serum in comparison to healthy serum were detected, showing specific changes in the cells (e.g. Protein at 9192 Da (p<0.001)). The variance component analysis showed an effect of the serum of 59% on the cells. The pressure had an effect of 11% on the cells. Antibody removal led to significantly changed cell reactions (p<0.03). Furthermore, the incubation with POAG serum and its antibodies led to pro-apoptotic changes of proteins in the cells. Conclusions These studies show that the serum and the antibodies of glaucoma patients significantly change protein expressions involved in cell regulatory processes in neuroretinal cells. These could lead to a higher vulnerability of retinal cells towards stress factors such as an elevated IOP and eventually could lead to an increased apoptosis of the cells as in glaucoma.
Duality between Broadcasting with Bandwidth Expansion and Bandwidth Compression

We consider the problem of broadcasting kldr samples of an independent identically distributed (i.i.d) Gaussian source to two users in n = lambdakldr uses of an AWGN channel. We develop a framework which shows a duality between a source-channel coding scheme for the case of lambda > 1 and that for lambda < 1. Using this duality, we derive a scheme for the case of lambda < 1, which is the dual of a scheme proposed by Reznic, Zamir and Feder (2006). This scheme, which provides the largest known achievable distortion region currently known, is also the same as that proposed by Prabhakaran et al (2005) specialized to the case of an i.i. d source with lambda < 1. We also provide an explanation for why this scheme performs well by first analyzing the performance of source-channel coding schemes in the presence of a signal-to- noise ratio mismatch.
The effect of collective flavor oscillations on the diffuse supernova neutrino background

Collective flavor oscillations driven by neutrino–neutrino interactions inside core-collapse supernovae have now been shown to drastically alter the resultant neutrino fluxes. This would in turn significantly affect the diffuse supernova neutrino background (DSNB), created by all core-collapse supernovae that have exploded in the past. In view of these collective effects, we re-analyze the potential for detecting the DSNB in currently running and planned large scale detectors meant for detecting both and νe. We find that the event rate can be different from previous estimates by up to 50%, depending on the value of θ13. The next generation detectors should be able to observe DSNB fluxes. Under certain conducive conditions, one could learn about neutrino parameters. For instance, it might be possible to determine the neutrino mass hierarchy, even if .
Formal Semantic Model for Agent-Based Software System

Focusing on model-driven development for agent-based intelligent systems, a formal semantic model is proposed in this paper. The typed category theory is used to formally describe agent models and their mapping relations, and thus the precise semantic meanings for them are provided. Agent models are described with algebra specifications, and morphisms are used to describe the relationships between agent models, and the morphism types imply the different semantics of agent interactions. The formal semantic model can be used to judge whether a transformation satisfies some property preservation constraints or not, and it can provide an effective support for model-driven agent-based software development. An agent-based intelligent tutoring system is given as a case to illustrate the application of this approach.
Pre-filter design for high speed contouring machines

High-speed and high-precision tracking control is required for future contouring machine tools. It is known that, by pre-filtering the command trajectory in an appropriate way, the contouring error can be effectively reduced. This paper presents the result of a hybrid approach applied to pre-filter design, which incorporates a MLP (multilayer perceptron) neural network to enhance the performance of a recently-proposed adaptive calibrating controller. Due to the presence of nonlinearities, such as friction and signal quantization, the proposed method further reduces the contouring error by taking advantage of the nonlinear and learning nature of the neural network. Simulation results on a dynamic model of a commercial laser profiling machine are demonstrated.
Construction of Cyclic Codes over $\mathbb{F}_2+u\mathbb{F}_2$ for DNA Computing

We construct codes over the ring $\mathbb{F}_2+u\mathbb{F}_2$ with $u^2=0$. These code are designed for use in DNA computing applications. The codes obtained satisfy the reverse complement constraint, the $GC$ content constraint and avoid the secondary structure. they are derived from the cyclic complement reversible codes over the ring $\mathbb{F}_2+u\mathbb{F}_2$. We also construct an infinite family of BCH DNA codes.
Study on Six-Port Demodulator with Anti-parallel Diode Pair Detection

The direct conversion receivers have unique advantages in wireless communications owing to their circuit simplicity and the high level of the circuit integration. A novel six-port direct conversion demodulator utilizing anti-parallel diode pair (APDP) detection is presented in this paper. The block diagram of the six-port demodulator is fabricated and the corresponding mathematic formulas of the demodulator are educed. The influence of the I/Q across interferences, the DC-offset and the second order intermodulations (IM2) on the performance of the demodulator is studied. The results show that the present six-port demodulator can decrease the I/Q across interferences with a baseband signal processing method. Compare with the single diode detection, the APDP configuration have perfect performance on suppression the DC-offset and the IM2. The present work is expected to be useful for the design of the advanced demodulator with high frequency and ultra-wideband.
The 5HT1a Receptor Agonist 8-Oh DPAT Induces Protection from Lipofuscin Accumulation and Oxidative Stress in the Retinal Pigment Epithelium

Age-related macular degeneration (AMD), a major cause of blindness in the elderly, is associated with oxidative stress, lipofuscin accumulation and retinal degeneration. The aim of this study was to determine if a 5-HT1A receptor agonist can reduce lipofuscin accumulation, reduce oxidative damage and prevent retinal cell loss both in vitro and in vivo. Autophagy-derived and photoreceptor outer segment (POS)-derived lipofuscin formation was assessed using FACS analysis and confocal microscopy in cultured retinal pigment epithelial (RPE) cells in the presence or absence of the 5-HT1A receptor agonist, 8-OH DPAT. 8-OH DPAT treatment resulted in a dose-dependent reduction in both autophagy- and POS-derived lipofuscin compared to control. Reduction in autophagy-induced lipofuscin was sustained for 4 weeks following removal of the drug. The ability of 8-OH DPAT to reduce oxidative damage following exposure to 200 µM H2O2 was assessed. 8-OH DPAT reduced superoxide generation and increased mitochondrial superoxide dismutase (MnSOD) levels and the ratio of reduced glutathione to the oxidized form of glutathione in H2O2-treated cells compared to controls and protected against H2O2-initiated lipid peroxidation, nitrotyrosine levels and mitochondrial damage. SOD2 knockdown mice, which have an AMD-like phenotype, received daily subcutaneous injections of either saline, 0.5 or 5.0 mg/kg 8-OH DPAT and were evaluated at monthly intervals. Systemic administration of 8-OH DPAT improved the electroretinogram response in SOD2 knockdown eyes of mice compared to knockdown eyes receiving vehicle control. There was a significant increase in the ONL thickness in mice treated with 8-OH DPAT at 4 months past the time of MnSOD knockdown compared to untreated controls together with a 60% reduction in RPE lipofuscin. The data indicate that 5-HT1A agonists can reduce lipofuscin accumulation and protect the retina from oxidative damage and mitochondrial dysfunction. 5-HT1A receptor agonists may have potential as therapeutic agents in the treatment of retinal degenerative disease.
Designing and Testing of the Software Module Evaluation of Visual Acuity for Information System Eye Center

The aim of this work was to design and implement the application of visual acuity evaluation for the eye center information system. The application was designed for Android Operating System (OS) and was programmed in Android Studio. This work also deals with the implementation of the application, from the design of the user interface, through the creation and configuration of the project in Android Studio to the functionality of individual screens and connection with the back-end.
Attributing Illness to Food

Identification and prioritization of effective food safety interventions require an understanding of the relationship between food and pathogen from farm to consumption. Critical to this cause is food attribution, the capacity to attribute cases of foodborne disease to the food vehicle or other source responsible for illness. A wide variety of food attribution approaches and data are used around the world, including the analysis of outbreak data, case-control studies, microbial subtyping and source tracking methods, and expert judgment, among others. The Food Safety Research Consortium sponsored the Food Attribution Data Workshop in October 2003 to discuss the virtues and limitations of these approaches and to identify future options for collecting food attribution data in the United States. We summarize workshop discussions and identify challenges that affect progress in this critical component of a risk-based approach to improving food safety.