Miracle-dz/UniFAR-FTUs huggingface dataset:
UNTERSUCHUNG EINER ÜBERDIMENSIONIERTEN END-ZU-SEIT-ANATOMOSE MITTELS NUMERISCHER STRÖMUNGSSIMULATION

Eine wesentliche Ursache von Spätverschlüssen vaskulärer Prothesen im infragenualen Bereich ist die subendotheliale Intimahyperplasie in der distalen End-zu-SeitAnastomose. Die Ursachen für die Entstehung der Intimahyperplasie sind von sehr komplexer Natur und liegen bis zum jetzigen Zeitpunkt nicht als geschlossene Kausalkette vor. Von allen Arbeitsgruppen, die die Ätiologie der Intimahyperplasie erforschen, wird jedoch bekräftigt, daß hämodynamische Ursachen einen entscheidenden Einfluß haben. In der klinischen Praxis wird versucht, durch Formänderung der distalen Anastomose diese Einflüsse zu minimieren. Als Ergebnis liegen heute in vitro Untersuchungen in Kombination mit klinischen Ergebnissen zum Linton Patch, zum Miller Collar, zum Taylor Patch und zu einer von uns entwickelten Form (doppelbulbusförmige Gestaltung, Nomenklatur: femoro-crurale Patchprothese FCPP) vor [4]. Um die Einflüsse der Anastomosengeometrie zu studieren, haben wir die Untersuchungen auf eine mittels eines weitlumigen Venensegments überdimensionierte End-zu-Seit-Anastomose ausgedehnt.
Characterization of a rotary hybrid multimodal energy harvester

In this study, experimental characterizations of a new hybrid energy harvesting device consisting of piezoelectric and electromagnetic transducers are presented. The generator, to be worn on the legs or arms of a person, harnesses linear motion and impact forces from human motion to generate electrical energy. The device consists of an unbalanced rotor made of three piezoelectric beams which have permanent magnets attached to the ends. Impact forces cause the beams to vibrate, generating a voltage across their electrodes and linear motion causes the rotor to spin. As the rotor spins, the magnets pass over ten electromagnetic coils mounted to the base, inducing a current through the wire. Several design related issues were investigated experimentally in order to optimize the hybrid device for maximum power generation. Further experiments were conducted on the system to characterize the energy harvesting capabilities of the device, all of which are presented in this study.
Statistics of nonlinear phase noise in phase modulated fiber-optic communications systems

We derive a method for evaluating the distribution of the phase noise in phase and differential phase modulated systems. The method considers both SPM and XPM induced phase noise and accounts for fiber dispersion. The noise distribution can be used to estimate arbitrarily small bit-error rates for PSK and DPSK systems. The theoretical analysis agrees with Monte Carlo simulations of WDM systems.
Evaluation of Tracking Performance: Focusing on Improvement of Aiming Ability for Individual Weapon

In this paper, an investigation of weapon tracking performance is shown in regard to improving individual weapon performance of aiming objects. On the battlefield, a battle can last only a few hours, sometimes it can last several days until finished. In these long-lasting combats, a wide variety of factors will gradually lower the visual ability of soldiers. The experiments were focusing on enhancing the degraded aiming performance by applying visual tracking technology to roof mounted sights so as to track the movement of troops automatically. In order to select the optimal algorithm among the latest visual tracking techniques, performance of each algorithm was evaluated using the real combat images with characteristics of overlapping problems, camera`s mobility, size changes, low contrast images, and illumination changes. The results show that VTD (Visual Tracking Decomposition)[2], IVT (Incremental learning for robust Visual Tracking)[7], and MIL (Multiple Instance Learning)[1] perform the best at accuracy, response speed, and total performance, respectively. The evaluation suggests that the roof mounted sights equipped with visual tracking technology are likely to improve the reduced aiming ability of forces.
In-silico design of a multi-epitope recombinant vaccine against SARS-CoV-2 targeting the receptor binding domain

The COVID-19 pandemic caused by the SARS-CoV-2 virus is posing a major global challenge due to its rapid infectivity and lethality. Despite a global effort towards creating a vaccine, no viable vaccine currently exists. While multiple bioinformatic studies have attempted to predict epitopes, they have focused on the whole spike protein without considering antibody mediated enhancement or Th-2 immunopathology and have missed some important but less antigenic epitopes in the receptor binding domain. Therefore, this study used in silico methods to design and evaluate a potential multiepitope vaccine that specifically targets the receptor binding domain due to its critical function in viral entry. Immunoinformatic tools were used to specifically examine the receptor binding domain of the surface glycoprotein for suitable T cell and B cell epitopes. The selected 5 B cell and 8 T cell epitopes were then constructed into a subunit vaccine and appropriate adjuvants along with the universal immunogenic PADRE sequence were added to boost efficacy. The structure of the vaccine construct was predicted through a de novo approach and molecular docking simulations were performed which demonstrated high affinity binding to TLR 5 receptor and appropriate HLA proteins. Finally, the vaccine candidate was cloned into an expression vector for use as a recombinant vaccine. Similarities to some recent epitope mapping studies suggest a high potential for eliciting neutralizing antibodies and generating a favorable overall immune response.
Constructing a Transit Origin–Destination Table Using the Uncertainty Maximization Concept

An origin–destination (O-D) table contains information essential for making decisions about the operation and management of a transit system, such as determining the schedule, train composition, and fare structure. The table needs to be updated frequently. However, the collection of O-D data is time-consuming, costly, and cumbersome. This paper proposes a method that produces an O-D table on the basis of generally available data: passenger boarding and alighting counts at individual stations and the analyst's knowledge, either qualitative or quantitative, about the values for some station pairs; for example, the number of trips (i, j) is approximately 100 or the number of trips (i, j) is much greater than the number of trips (m, n) (where i, j, m, and n are stops). The method applies the entropy maximization principle, in which the values for the O-D pairs whose information is not available are maximally unbiased and the available information is used as a constraint in the optimization problem. The uniqueness of the proposed approach is its ability to deal with qualitative and often language-based information, which the analyst often possesses. An example from a real transit line is presented to show the usefulness of the method and also to show how the additional information about select O-D pairs affects the quality of the solution.
High performance inter-chip signalling

The achievable off-chip bandwidth of digital IC's is a crucial and often limiting factor in the performance of digital systems. In intra-system interfaces where both latency and bandwidth are important, source-synchronous parallel channels have been adopted as the most effective solution. This work investigates receiver and clocking circuit design techniques for increasing the signalling rate and robustness of such channels. One of the main problems arising in the reception of high speed signals is the adverse effects of high frequency noise. To alleviate these effects, a new class of receiver structures that utilize current integration is proposed. The integration of current on a capacitor based on the incoming signal polarity effectively averages the signal over its valid time period, therefore filtering out high frequency noise. An experimental transceiver prototype utilizing current integrating receivers was designed and fabricated in a 0.8 $\mu$m CMOS technology. The prototype achieves a signaling rate of 740 Mbps/pin operating from a 3.3-V supply with a bit error rate of less than 10$\sp{-14}. $ The second major challenge of inter-chip communication is the design of clock generation and synchronization circuits. Delay locked loops are an attractive alternative to VCO-based phase locked loops due to their simpler design, intrinsic stability, and absence of phase error accumulation. One of their main problems however is their limited phase capture range. A dual loop architecture that eliminates this problem is proposed. This architecture employs a core loop to generate finely spaced clock edges, which are then used by a peripheral loop to generate the output clock through phase interpolation. Due to its digital control, the dual loop can offer great flexibility in the implementation of phase acquisition algorithms. A dual DLL prototype was fabricated in a 0.8 $\mu$m CMOS technology. The prototype achieves 80KHz-400MHz operating range, 12-ps rms jitter and 0.4-ps/mV jitter supply sensitivity.
Low-power low-voltage differential class-AB OTAs for SC circuits

Two new differential class-AB operational transconductance amplifiers (OTAs) for SC circuits that operate with a supply voltage of less than two transistor threshold voltages are introduced. They make use of a new class-AB pseudodifferential pair to generate signal currents much larger than quiescent currents. Both OTAs have been designed to operate with a supply voltage of V/sub DD/=1.1 V, using a 0.35 /spl mu/m CMOS technology. Simulation results for a load capacitance (C/sub L/) of 1 pF show 15 MHz gain-bandwidth product with a quiescent power consumption of 10 /spl mu/W.
Ferroresonance of Power Transformers Considering Non-linear Core Losses and Metal Oxide Surge Arrester Effects

Abstract In this article, a simple case of ferroresonance in a three-phase transformer is used to study the effect of a metal oxide surge arrester on the control of chaotic ferroresonance and duration of chaotic transient in a power transformer including non-linear core losses. The time-domain simulations are derived using MATLAB (The MathWorks, Natick, Massachusetts, USA) for a three-phase 50-MVA, 635.1-kV power transformers while one of its phases is opened. The magnetization characteristic of the power transformer is modeled by a single-value two-term polynomial. The non-linear core losses are modeled by a third-order power series in terms of voltage, and the core losses non-linearities are considered as well. The simulation results show that connecting the metal oxide surge arrester to the transformer exhibits a great suppressing effect on occurred ferroresonance over-voltage.
Single-phase autoreclosure of extra-high-voltage transmission lines. An investigation into the residual fault current and recovery voltage

The success of single-phase autoreclosure of extra-high-voltage transmission lines is based on the possibility of self extinction of the secondary arc, in spite of the influence of the sound phases. The residual fault current and the recovery voltage of the switched phase are among the most essential factors affecting self extinction of the residual fault. In this paper, a method is developed for the calculation of the recovery voltage and residual fault current during single-pole switching. The power system investigated consists of a remote power station interconnected to a large electrical system, through a single-circuit extra-high-voltage transmission line. The analysis includes the effect of fault location, line length, station parameters, transmission-line loading and the electromechanical swing subsequent to fault occurrence. The effects of the above factors on recovery voltage and residual current are investigated on the basis of numerical computations for a 500 kV transmission system.
A Hybrid Maximum Power Point Search Method Using Temperature Measurements in Partial Shading Conditions

Photovoltaic panels have a non-linear current-voltage characteristics to produce the maximum power at only one point called the maximum power point. In the case of the uniform illumination a single solar panel shows only one maximum power, which is also the global maximum power point. In the case an irregularly illuminated photovoltaic panel many local maxima on the power-voltage curve can be observed and only one of them is the global maximum. The proposed algorithm detects whether a solar panel is in the uniform insolation conditions. Then an appropriate strategy of tracking the maximum power point is taken using a decision algorithm . The proposed method is simulated in the environment created by the authors, which allows to stimulate photovoltaic panels in real conditions of lighting, temperature and shading.
Improved Organizational Behavior Through Strategic Total Productive Maintenance Implementation

The manufacturing industry has experienced an unprecedented degree of change in the highly competitive and dynamics manufacturing scenario. Recent competitive trends have been pushing manufacturing executives to reconsider the impact and importance of increasing equipment availability and utilization, maintenance productivity and resource utilization, and increasing quality and responsiveness of maintenance services in meeting overall goals to achieve World Class status. TPM has been envisioned as an effective tool in the quest for achieving the world class status and meeting the ever increasing competition. This paper elaborates the contribution of TPM implementation towards improvement in organizational behavior in the Indian process industry in the quest to attain world-class competitiveness and sustainability efforts. The case study of TPM implementation though team building in Indian process industry has been brought out through the presentation of TPM benefits at the Hot Strip Mill division at a steel manufacturing company. The various aspects of TPM implementation have also been illustrated with the help of a case study.Copyright © 2006 by ASME
Diagnostic and In-Service Testing of Transit Railway Bridge

Results of a diagnostic load test and in-service monitoring of a steel through-girder bridge are presented. The bridge currently has a low load rating that is controlled by the flexural capacity of the steel deck trough. The diagnostic load test was conducted using the regularly scheduled transit trains, with no interruption to the daily service. A total of 16 strain transducers were mounted to the bridge girders and trough; five dynamic train passes were recorded. The largest tensile and compressive stresses recorded in the edge girder were 33.5 MPa and 23.4 MPa, respectively; the largest tensile and compressive stresses in the deck trough were 25.9 MPa and 27.9 MPa, respectively. The test results showed the effective width of the deck trough to be 2.89 m for a single axle and 5.19 m for a 2.74-m spaced axle pair. An in-service monitoring system was also placed on the bridge to record the stress cycles experienced by the bridge over a 1-week period. During the in-service monitoring period, 163 trains crossed the bridge with an associated 1,456 axles. The mean peak tensile stress in the deck trough caused by locomotives crossing the bridge was 26 MPa with a standard deviation of 1.8 MPa. The test results showed that the peak deck trough strains due to live load were only 15 percent of the computed values used in the rating. As a result, the bridge load rating can safely be increased, and the current speed restrictions can be lifted.
Manipulability of the upper limb during grasping

An upper limb can be modelled by several segments linked together by joints with different structures and number of degrees of freedom (DOFs). In the framework of biomechanics, the control of this redundant structure by the central nervous system has been studied through various indices, such as interjoint coordination using correlation coefficients (Sande de Souza et al. 2009), phase plots (Cirstea et al. 2003) or principal component analysis (Hoffmann et al. 2006). These parameters are very useful for characterising the coupling between the DOFs, but do not give insight into the adequacy or the ‘performance’ of a given posture or movement in relation to a particular task. In the frame of robotics, such global parameters are available and are used to optimise the joint trajectories during movement planning. Among them, the manipulability indices (Yoshikawa 1985) seem to be of special interest. Indeed, given a particular posture of the kinematic chain, these parameters allow to evaluate the set of velocities that can be achieved by the end-effector in all the Cartesian directions. Given a particular movement, their evaluation may provide valuable information on the ‘dexterity’ of the kinematic chain. In this study, we propose evaluating these indices to assess the overall coordination of the upper-limb DOFs during a grasping task involving an obstacle.
The psychophysiological correlates of cognitive dissonance

Abstract. This preregistered study uses a combination of physiological measures to explore both the activation and reduction components of cognitive dissonance theory. More precisely, we use skin conductance to identify dissonance arousal, a short-term affective response to counter-attitudinal stimuli, and then use heart rate variability to measure dissonance reduction, which reflects longer-term patterns of emotional regulation and information processing. Our preliminary tests find weak evidence of dissonance arousal and no evidence of dissonance reduction using this physiological approach. We consequently reconsider (albeit optimistically) the use of physiology in future work on cognitive dissonance. We also discuss the implications of our findings for selective exposure and motivated reasoning.
Sensing dynamic phase perturbation by self-interference of a photorefractive interferometer

As for our knowledge, a simplest real-time system for measuring dynamic optical phase perturbation is proposed and demonstrated. In this system a 1% weight Fe:LiNbO3 is used to record the self-interference grating by the incident light. The interferometer is a new kind of double-exposure one. The speed of the interferometer is as fast as that of the dynamic phase perturbations.
Factors Related to Probability of Joint Flooding on Paired Streams in Ohio

Factors related to the probability of joint flooding on paired streams were investigated. Stream pairs were considered to have flooded jointly at the design-year flood threshold (corresponding to the 2-, 10-, 25-, or 50-year instantaneous peak stream flow) if peak stream flows at both streams in the pair were observed or predicted to have equaled or exceeded the threshold on a given calendar day. Daily mean stream-flow data were used as a surrogate for instantaneous peak stream-flow data to determine which flood thresholds were equaled or exceeded on any given day. Instantaneous peak stream-flow data, when available, were used preferentially to assess when the flood threshold was exceeded. Observed probabilities of joint flooding were computed as the ratios of the number of days when stream flows at both streams concurrently equaled or exceeded their flood thresholds (events) to the number of days when stream flows at either stream equaled or exceeded its flood threshold (trials). Logistic regression equations for estimating the probability of joint flooding at the 2-year flood threshold were developed on the basis of event-trial ratio and basin characteristic data. Distance between drainage area centroids, the ratio of the smaller drainage area to the larger drainage area, mean drainage area, and the centroid angle adjusted 30 degrees were the characteristics most closely associated with the probability of joint flooding on paired streams in Ohio. In general, the probability of joint flooding decreased with an increase in centroid distance and increased with increases in drainage area ratio, mean drainage area, and centroid angle adjusted 30 degrees.
Hardware efficient receiver for low-cost ultra-high rate 60 GHz wireless communications

This paper presents a hardware efficient receiver architecture, to be used in low-cost, ultra-high rate 60 GHz wireless communication systems. The receiver utilizes a simple, feed-forward carrier recovery concept, performing phase and frequency synchronization in the analog domain. This enables 1-bit baseband processing without a need of ultra-high speed and high precision analog-to-digital conversion, offering a strong simplification of the system architecture and comparatively low power consumption. In a first prototype implementation, the receiver is realized in a low-cost SiGe technology as two separate ICs: the 60 GHz/5 GHz downconverter, and the intermediate frequency synchronous demodulator. The simple synchronous reception concept is experimentally validated for up to 3.5 Gbit/s data rate, which constituted the limit of the existing experimental setup. Furthermore, the downconverter demonstrates that low-cost technologies (fop/fmax ~ 0.75) can be used to realize short-range data links at 60 GHz, with low-noise amplifiers in a more performant technology as needed.
DISEÑO DE UN BIORREACTOR EMPACADO CON CÉLULAS INMOVILIZADAS

A packed-bed bioreactor was designed with immobilized cells on a ceramic inert support (instalox seats). The design equatlons, considering an ideal plug-flow tubular bloreactor, were solved with appropiate algorithms installed in Mathcad 7P, obtaining a volume of 10L for the appropiate desing restrictions. It was determinad that for small bioreactors it is not necessary to consider the pattern of axial disperslon and that the isothermic operation is possible for the hlgh degree of retromixing of coolant in the jacket.
Change and uncertainty in SME manufacturing environments using ERP

Purpose – The aim of this paper is to investigate how enterprise resource planning (ERP) systems could create a competitive advantage for small and medium‐sized enterprises (SMEs). The objectives of this study are to examine how responsive and agile the existing ERP systems are to change and uncertainty, and to identify the types of change and uncertainty in SME manufacturing environments.Design/methodology/approach – A mixed methodology is used in this study, which involves literature review, questionnaire survey and follow‐up, in‐depth telephone interviews. An uncertainty diagnosing business model is applied to collect data from SME manufacturers in make‐to‐stock (MTS), make‐to‐order (MTO) and mixed mode (MM) manufacturing environments in a structured manner, and to analyse the effects of the underlying causes of uncertainty on product late delivery in MTS, MTO and MM manufacturing environments in SMEs. Some 108 enterprises responded (86 per cent response rate), of which 64 are SMEs. Analysis of varianc.
Generating Style-based Palm Vein Synthetic Images for the Creation of Large-Scale Datasets

Individuals recognition through their biometric traits is an essential component of modern society. The recent literature includes several works based on palm vein recognition for individual identification, being a very active research field in the last five years. However, the publicly available datasets are very limited and have a small number of subjects, which limits to conduct scalability tests on large-scale databases. In this work, we propose a novel specific domain application for stylebased GAN architecture (StyleGAN) for generating synthetic palm vein images. Moreover, we present the largest dataset of palm vein images of the state-of-the-art at this moment, comprising of 10,000 subjects with 6 samples per each. Experimental results show that generated images look very realistic based on different metrics for measuring them against prior real datasets. The proposed dataset, called Synthetic Style-based Palm Vein Database (Synthetic-sPVDB), is publicly available on the website of our laboratory.