Miracle-dz/UniFAR-FTUs huggingface dataset:
Um Modelo Dinâmico para Análise dos Impactos da Rotatividade de Pessoal Durante a Fase de Requisitos

Visando a aumentar a compreensão acerca dos aspectos gerenciais envolvidos na fase de requisitos em processos de desenvolvimento de software, este trabalho apresenta e discute um modelo de dinâmica de sistemas que descreve as interações dinâmicas entre as principais variáveis envolvidas na fase de requisitos. As simulações realizadas com o modelo permitiram verificar e antever principalmente os impactos da rotatividade (turnover) de pessoal sobre a qualidade e o custo do trabalho realizado durante a fase de requisitos. Os efeitos econômicos de manter uma equipe com sobra de pessoal, como uma forma de mitigar riscos durante essa fase, foram analisados via simulações com os modelos.
Sufficient conditions of optimal control based on Pontryagin’s minimum principle for use in hybrid electric vehicles

Over 10 years ago, the equivalent consumption minimization strategy was introduced as an effective approach, using the concept of equivalent fuel consumption for electricity use, to solve a control problem for hybrid electric vehicles. Although numerous studies have documented outstanding results as a consequence of applying the concept and have shown that the equivalent consumption minimization strategy could be explained on the basis of an optimal control concept such as Pontryagin’s minimum principle, few studies have proven, mathematically, its optimal performance when solving the control problem of hybrid electric vehicles. The present research builds upon previous research studies that proved that the control based on Pontryagin’s minimum principle can be a global optimal solution for hybrid electric vehicles under the assumption that the battery efficiency is not a function of the state of charge. In this paper, we expand upon the original concept, deriving the optimality within more generalized cases than previously reported. In conclusion, if the battery efficiency is a concave function of the state of charge, which is possibly a natural characteristic of the battery, the optimal control based on Pontryagin’s minimum principle enables optimal performance to be achieved. We can therefore apply this control concept to hybrid electric vehicles which use a wide range of states of charge, such as plug-in hybrid electric vehicles.
Broadband microwave push-pull power amplifiers

The research work presented in this thesis aims to achieve high-power, high-efficiency amplification across substantial bandwidths at microwave frequencies. The push-pull topology was identified as a promising possible solution which had previously not been considered for this application. The key component in the push-pull power amplifier is the balun, which converts between balanced and unbalanced signal environments. The novel use of ferrite materials allowed the half-wavelength resonance of a coaxial-cable transmission line balun to be suppressed, greatly extending its bandwidth. This was done by utilising the resistive properties of the ferrite material at frequencies greater than 1 GHz, at which these materials are not usually studied. The multi-decade performance of the transmission line baluns opened up the possibil- ity of realising push-pull power amplifiers across similar bandwidths. The measurement of these baluns revealed that they present a resistive impedance to the odd-harmonic frequencies, and an open circuit to the even-harmonic frequencies. This is a significant departure from the conventional view of the push-pull mode, and led to the modes of operation inside a microwave push-pull power amplifier being reconsidered. Factorised waveform expressions were used to describe the new modes of operation, and these were verified through load-pull simulations and measurements. The wave- forms were found to resemble the inverted modes of operation, with similar desirable characteristics such as high efficiency and an increase in output power compared to Class A. The viability of the push-pull amplifier topology was demonstrated through two pro- totype amplifiers, which achieved high output power levels and efficiencies over multi- octave bandwidths. Measurement systems for characterising and analysing these amplifiers were developed, which should lead to improved understanding and better performance in future.
Using networked technologies to support conferences

The increasing availability of WiFi networks in conference venues is an opportunity to provide additional services for conference delegates and to enhance and enrich the learning experience. This paper reviews experiences of use of networked applications in a conference environment and outlines a number of potentially useful technologies. The paper addresses potential concerns over use of networked technologies including dangers of disruption and distraction, legal and copyright issues as well as the danger of being over-fixated on the technologies themselves, rather than the uses they can provide. The paper concludes by summarising the issues which need to be addressed when considering the provision of networked services in a conference setting.
Monitoring und Benchmarking bei arbeitsmarktpolitischen Maßnahmen

Ziel dieser Dokumentation ist es, einen Uberblick uber den Forschungsstand zum Monitoring und Benchmarking im Bereich der Arbeitsmarktpolitik zu geben. Der Fokus richtet sich dabei auf allgemeine Definitionen, generelle Vorgehensweisen, ausgewahlte Fallbeispiele, sowie bestehende Probleme und die Kritik an den Konzepten.
Working with Standards - Post‐Crisis Positioning of Bank Advisors

Taking recent developments in the financial sector as its point of departure, this article examines how bank advisors are positioned. Increased complexity in banking products and the risk orientation that has followed the financial crisis make demands on the quality of advice. Drawing on qualitative interview studies in two Danish banks, the article questions whether the dominant understanding of bank advisors as primarily sales persons comprises their current positioning. Contradictory demands on bank advisors emerge in the simultaneous emphasis on advisory aspects of the work and in the imposition of new standard procedures; while one points to a positioning as professional advisors, the other tends to undermine it and makes the positioning ambiguous.
Deep-Learning-Based Defect Evaluation of Mono-Like Cast Silicon Wafers

Solar cells based on mono-like cast silicon (MLC-Si) have been attracting increasing attention in the photovoltaic (PV) market due to their high energy conversion efficiency and low cost. As in the production of monocrystalline silicon (MC-Si) and polycrystalline silicon (PC-Si) cells, various defects will inevitably occur during the production process of MLC-Si cells. Although computer vision technology has been employed for defect detection in the production processes, it is still difficult to achieve high accuracy in detecting defects in PV cells using traditional machine vision methods due to defect similarity and complex background. To address this challenge, a deep-learning-based quality assessment algorithm of MLC-Si wafers is proposed. Focusing on the dislocation defects, four different deep learning models are used to conduct migration learning and selected different optimizers (ADAM and SGDM) are used to optimize the network models, achieving good results in evaluating and comparing the quality of ML-Si wafers. On this basis, an improved network model MVGG-19 based on the VGG-19 is designed to improve the prediction accuracy further. The experimental results show that the prediction error of the improved network model is reduced by 63% (compared with VGG-19) and the reasoning speed reaches 10.22 FPS, indicating good detection performance.
An Elevated High-Density Lipoprotein Cholesterol Levels Is Associated with Favorable Outcomes of Patients with Small-Artery Occlusion

Background: The relationship between high-density lipoprotein (HDL) cholesterol and small-artery occlusion (SAO) is not well understood. Methods: A total of 3067 consecutive patients with SAO were recruited from Tianjin Huanhu Hospital between January 01, 2008, and December 31, 2015. HDL values at admission were classified into four groups according to quartiles (<0.92, 0.92–1.08, 1.08–1.28, and ≥1.28). Patients were followed up to 12 months after stroke. Prognoses, represented by modified Rankin scale (mRS), were estimated via HDL quartiles upon admission utilizing multivariate logistic regression analysis. Meanwhile, we conducted additional subgroup analyses to investigate associations according to age. Results: Among 3067 patients, 2284(74.5%) were classified as having favorable outcomes, 783(25.5%) had a composite of poor outcomes,recurrent stroke, myocardial infarction or vascular death within 12 months. After adjustment for possible confounders, HDL levels in the two highest quartiles (1.08–1.28 and ≥1.28) were correlated with the 12-month primary outcome of patients with SAO (1.08–1.28 , 0.587; 95% CI,0.394-0.873; P = 0.009; ≥1.28, 0.448; 95% CI, 0.291-0.688; P < 0.001). However, a direct correlation was found in patients aged 45–75 years (1.08–1.28, P = 0.033; ≥1.28, P = 0.001). Similar to the primary outcome,a direct correlation was also found in patients aged 45–75 years with a 12-month secondary outcomes(≥1.28 mmol/L, p = 0.001). Conclusions: An elevated HDL cholesterol level in patients with SAO is an independent predictor of a favorable prognosis 12 months after SAO. However, the association was only present in patients aged 45–75 years. Keywords: High-Density Lipoprotein Cholesterol, Stroke, Outcome, Small-Artery Occlusion.
Activity and accomplishments in dish/Stirling electric power system development

Development of a modular, sun-heated, 25-kWe Stirling-engine generating plant that began in late 1977 has now been achieved. The U.S. Department of Energy Solar Thermal Technology Division sponsored the development of this solar parabolic -dish / Stirling-engine electricity generating plant Known as the dish/Stirling electric power system. As of late 1984, the dish/Stirling electric power system converts sunlight to electricity more efficiently than any known existing solar electric power system. Further prodtict development is ongoing. The report also covers the fabrication and characterization of the test bed concentrators that were used for Stirling module testing and of the development of Parabolic Dish Concentrator No. 2, an advanced solar concentrator unit considered for use with the Stirling power conversion unit. j
Combined RNA-seq, small RNA and degradome sequencing approaches insights into salt-stress responses in Beta vulgaris

Background Salinity is one of the most serious threat to agriculture worldwide. Sugar beet is an important sugar-yielding crop and has a certain tolerance to salt. While a genome-wide analysis of genes involved in salt-stress remains largely unknown in B. vulgaris. Results Three high-throughput sequencing approaches, namely, RNA-seq, small RNA and degradome sequencing were used to exploring the molecular basis of salt-resistance in beta vulgaris. A total of 12 230 differentially expressed genes were identified, which were mainly related to transcription factors, protein kinases, and enzymes. The small RNA sequencing resulted in the identification of 476 miRNAs included 219 known and 257 novel miRNAs, of which 130 were differentially expressed under salt-stress. A total of 2534 targets were predicted for 317 miRNAs by bioinformatics and degradome sequencing. Functional analysis of these targets suggested that miRNA-mediated post-transcriptional regulation plays a crucial role in transcriptional reprogramming under stress. The combination analysis of multi-omics revealed 209 negative correlation mRNA-miRNA pairs. All these data were used to construct a hypothetical regulatory network of beta vulgaris in response to salt stress. Conclusion These components and the preliminary network provides better insights into the molecular mechanism of salt-stress response, and also offers candidate genes for beet improvement.
REARVIEW MIRROR GLARE WITH VARYING VEHICLE GEOMETRIES

The Affiliation Program currently includes Autoliv, Avery Dennison, Bendix, BMW, Bosch, Com-Corp Industries, DaimlerChrysler, DBM Reflex, Decoma Autosystems, Denso, FederalMogul, Ford, GE, General Motors, Gentex, Grote Industries, Guide Corporation, Hella, Honda, Ichikoh Industries, Koito Manufacturing, Lang-Mekra North America, Magna Donnelly, Muth, Nissan, North American Lighting, OLSA, OSRAM Sylvania, Philips Lighting, PPG Industries, Renault, Schefenacker International, Sisecam, SL Corporation, Solutia Performance Films, Stanley Electric, Toyoda Gosei North America, Toyota Technical Center USA, Truck-Lite, Valeo, Visteon, 3M Personal Safety Products, and 3M Traffic Safety Systems. Information about the Affiliation Program is available at: http://www.umich. edu/~industry/
Stress relaxation in dual-damascene Cu interconnects to suppress stress-induced voiding

Stress-induced voiding (SIV) was investigated for 130 nm node dual-damascene Cu interconnects. Three SIV failure modes were revealed by TEM analyses. Cumulative failure was investigated at various metal widths, via shape and via position on a metal line at 150/spl deg/C at which the maximum failure rate was observed. Stress-induced failure at narrow Cu line was also observed, which is associated with tensile stress in Cu calculated by 3D finite element method (FEM) stress analysis. Stress relaxation by dielectric structure and quenching process were demonstrated based on stress simulation, thus the resulting SIV failure was suppressed.
An updated data compendium of enhanced low dose rate sensitive (ELDRS) bipolar linear circuits

The 1996 total dose data compendium on ELDRS in bipolar linear circuits is updated. The new data include 37 data sets at high and low dose rate on 29 part types from nine manufacturers. A new table on elevated temperature irradiation has been added. References for each data set are provided.
Setting Combines for Harvesting Best Soybean Seed Quality and Maximum Yield

bearings cause augers to droop and pinch grain. • Increase the fan speed incrementally. •Ê Open the chaffer (upper sieve) wide enough (5/8-inch) to prevent grain from getting carried to the returns system. Open lower sieve slightly (1/4 to 3/8-inch) to allow the clean grain to flow to the clean auger and then to the grain tank instead of entering the tailings returns system. • Typical manufacturer chaffer settings are 5/8-inch and sieve settings are 3/8-inch.
Long Short-Term Memory (LSTM) to Predict the Viewability of any Page Depth for any Given Dwell Time

In online distributers had a one major income source that is displaying advertising through online. In existing techniques recommender systems are depending upon the user’s interests. Recent studies show that the ads were really not seen by user’s means they don't scroll sufficiently profound to get the advertisements see. For this reason a new model was discovered for advertisements are paid on the off chance that they are in view, not minimally being served. A critical issue for distributers be near expect the chance to an advertisement on a agreed sheet intensity motivation live appeared resting on a client's monitor intended for a convinced live instance. This manuscript suggests Long Short-Term Memory (LSTM) near forecast the perceptibility of every sheet intensity intended for every agreed abide moment. It is a arrangement of bi-directional LSTM networks, encoder decoder structures & outstanding associations. The consequences shows that the high performance in terms of prediction.
100 GHz on-wafer S-parameter measurements by electrooptic sampling

The authors describe an electrooptic sampling system with a measurement bandwidth in excess of 200 GHz for on-wafer millimeter-wave measurements. An active probe frequency-multiplier has been developed to supply the millimeter-wave stimulus signal to the device under test. On-wafer measurements of S-parameters of linear circuits, time-waveforms of nonlinear circuits, and propagation characteristics of uniplanar waveguides on GaAs to 100 GHz by direct electrooptic sampling have been demonstrated. <<ETX>>
Partial discharge detection in cable termination using acoustic emission techniques and adaptive signal processing

A practical system, based on acoustic emission techniques, for detection of partial discharge activity in cable terminations is presented. Analysis of the received signal is carried out in both the time domain and in the frequency domain using a neural network approach. Laboratory synthesized samples were used with controlled discharges. Signals received by the sensor were recorded by a digital oscilloscope and then analyzed by computer. Time domain analysis provided an indication of the size of the discharge. The relationship between the acoustic signal and the discharge size is demonstrated. The frequency content of the signal is used to differentiate between the signals generated by different discharge sources. Variation of the acoustic signal with applied voltage has shown that the discharge may be detected at its inception. Practical samples of cable terminations containing known discharges were also tested. The system could detect these discharges and give an upper bound on their energy dissipation. The system is acoustic in nature and thus virtually free from electrical interference. An optical fibre coupling between the acoustic transducer and the test equipment protects the system from flashover and allows for on-line testing of cable terminations. <<ETX>>
Ion beam testing of ALTERA APEX FPGAs

In this work we have studied the effects of heavy ion beam irradiation on a field programmable gate array (FPGA). We have essentially investigated the single event effects (SEE) induced by ions having linear energy transfer (LET) values between LET=1.6 MeV/spl middot/cm/sup 2//mg and LET=78 MeV/spl middot/cm/sup 2//mg. Our tests were performed on a device of the APEX family manufactured by Altera Corporation, featuring a SRAM-based configuration memory. The test methodology was based on the implementation of four shift registers (SRs), two of them using the triple-modular-redundant (TMR) technique. The functionality of this circuit was continuously checked during irradiation and every detected error was logged and time-stamped by a control system. Very few single event upsets have been detected in the SRs. On the contrary, we have recorded a large number of single event functional interrupts (SEFIs). SEFIs were induced by SEUs in the SRAM configuration memory. We observed a constant increase of the supply current during irradiation but this effect was not due to single event latch-ups, but to progressive SEU-induced driver contentions or cumulative micro latch-ups. The configuration memory cross section has been calculated from SEFI cross section.
A discussion of measured static and dynamic rotor loads during testing of the ERICA tilt-wing rotorcraft configuration in DNW-LLF wind tunnel

A heavily instrumented 1:5 scaled model of the ERICA tilt-wing configuration has been tested in the DNW-LLF wind tunnel as part of the EU co-funded NICETRIP project. Tests were made for a variety of conditions ranging from pure helicopter and conversion corridor cases up to a low speed aircraft mode, with appropriate changes in tilt rotor and outer wing pitching angles. In total over 400 test conditions were measured. Rotor forces and moments have been measured with rotor balances. Blade bending moment and torsion as well as rotor shaft bending and torque were measured with calibrated strain gauge sensors. Measurements were made for fully trimmed and for non-trimmed conditions. The four bladed rotors are counter-rotating, are rigid in plane and allow cyclic blade pitch control through a remote controlled swash plate. Since cyclic pitch control caused damage to the blade pitch bearings, most of the test conditions had to be done without cyclic blade pitch control, leading to a large in-plane moment in the rotor plane and high bending moments in the rotor shaft. Some test cases were both measured with and without cyclic pitch control. The present paper analysis the rotor induced forces, moments and nacelle vibrations for the trimmed conditions. Both steady and dynamic contents of the signals are analyzed. It is found that with cyclic blade pitch control the time mean rotor in-plane forces and moments and the 1/rev rotor shaft and blade bending moments are effectively suppressed, but the dynamic components of the rotor in-plane forces and moments become larger than without cyclic blade pitch control. Without cyclic blade pitch control the 1/rev blade and rotor shaft bending moments become quite large and, rather surprisingly, for some of these test conditions also a large 2/rev blade bending moment is observed. Careful analysis of the data suggests that the 2/rev flap bending is caused by a 1/rev excitation (in the non-rotating system) of both nacelles, caused by the proximity of the nominal rotor rpm frequency to symmetric and anti-symmetric nacelle torsion eigen-frequency and probably also in combination with other nacelle related eigen-modes. The measured data are well suited to validate or verify existing semi-empirical or CFD methods to predict the steady and unsteady loads of the rotors. A correlation between rotor dynamics and (outer) wing dynamic loading and the influence of the outer wing and/or flaperon setting on the rotor forces and moments is left for future anal-ysis. Introduction
Evaluación de Tecnología utilizando TOPSIS en Presencia de Multi-colinealidad en Atributos: ¿Por qué usar distancia de Mahalanobis? Evaluation of Technology using TOPSIS in Presence of Multi-collinearity in Attributes: Why use the Mahalanobis distance?

This paper validates mathematically an improvement to the multi-criteria technique TOPSIS, (Technique for Order of Preference by Similarity to Ideal Solution) which traditionally uses the Euclidean distance when evaluating a set of alternatives, and assumes that there is independence between the attributes of the alternatives being evaluated, condition that is not always true. This paper demonstrates how the Mahalanobis distance incorporates the linear dependence between the alternative’s attributes, and also presents
Involving Faculty digital reluctants in a blended learning approach – Facebook, Blackboard and clickers

This paper presents a research project in a teacher education course for first year university students that focused on a blended learning approach. Guest presenters of weekly lectures were asked to consider a variety of digital learning support tools, including clickers, Blackboard and Facebook, in their pedagogical decisions. The focus of this paper is the presentation and analysis of data collected from teaching staff involved. The paper concludes that guest presenters want to retain a sense of control of the pedagogical impact they are planning for their students; for this purpose, the paper offers a set of recommendations to improve access and use of digital tools in university teacher education courses.