Miracle-dz/UniFAR-FTUs huggingface dataset:
Software para la Evaluación y Selección de Generadores Independientes

espanolEn muchas industrias, edificios, empresas y servicios por razones productivas, emergentes o de confiablidad, es necesario generar energia electrica independientemente del Sistema Electrico Nacional. En otros casos se necesitan plantas de generacion de energia electrica que puedan trabajar de forma aislada alimentando un circuito determinado. Para realizar la seleccion mas economica y eficiente de la capacidad a instalar se debe tomar en consideracion no solo el comportamiento del sistema donde se va a insertar la unidad, sino tambien, las caracteristicas operacionales del generador ante las fluctuaciones de la carga, sus limites operacionales y la estabilidad resultante. Este trabajo presenta un software que permite realizar la seleccion mas adecuada considerando la curva de capacidad y la estabilidad del generador ante las particularidades del sistema. Con su aplicacion es posible reducir los gastos y las perdidas economicas debidas a una seleccion inapropiada. Como caso se presenta su aplicacion a una planta de una fabrica de envases de alimentos. EnglishIn many industries, buildings and services is necessary to employ independent power plants to supply the electric power to a particular system. In other cases, islanded operation is desired due to several specific situations. In order to realize the most efficient, economic and adequate selection of the generator capacity is necessary to consider not only the systems load characteristic, also is necessary to know the limits of capabilities and the resultant stability of the power generator. This paper presents a software that allows to select the adequate generator, expose the operating limits and the resulting stability in fluctuating load condition. With its application is possible to reduce economic losses and the costs due to an impropriated generator selection with an oversized o sub utilized machine. As a case a 2500 kVA power plant is analyzed.
Low-order harmonic characteristics of photovoltaic inverters

Summary The increasing penetration of photovoltaic (PV) systems, consisting of PV panel and PV inverter, may introduce power quality issues to the distribution power system. One critical concern is the harmonic distortion. This paper proposes an analytical harmonic model of PV inverters to assess its harmonic impacts on the distribution systems. The model is also verified by both simulation and laboratory experimental results. The proposed model indicates that the PV inverter has both harmonic source characteristic and harmonic impedance characteristic. Furthermore, the harmonic emission of PV inverters is affected by two grid operating conditions, namely the grid impedance and background harmonic voltage. The case studies demonstrate that the harmonic emission of a PV inverter without special harmonic control function can comply with the IEC standard under the normal grid operating conditions. It is verified that harmonic impacts of PVs are not a big concern. Copyright © 2015 John Wiley & Sons, Ltd.
On the Escape Probability Estimation in Large Graphs

We consider the large graphs as the object of study and deal with the problem of escape probability estimation. Generally, the required characteristic cannot be calculated analytically and even numerically due to the complexity and large size of the investigation object. The purpose of this paper is to offer the effective method for estimating the probability that the random walk on graph first enters a node $b$ before returning into starting node $a$. Regenerative properties of the random walk allow using an accelerated method for the cycles simulation based on the splitting technique. The results of numerical experiments confirm the advantages of the proposed method.
Evaluating Robot-Operator Job Performance

Abstract : Assessments of small air and ground robot systems often focus on how well the equipment functions. Those assessments also should include the human operator and how well the robot and operator work together as an integrated system. Tests that do include performance of the human operator often rely on qualitative observations -- observer judgments and interviews about workload, situation awareness, cognitive issues, and so on. This paper views the operator and robot as a team, outlines a schema for measuring robot-operator team performance, and presents an initial proof-of-principle test for quantitatively assessing that performance. The initial proof-of-principle test did the following: (1) defined robot-operator performance factors associated with moving a small robot from point A to point B, and (2) quantified the effects that different sensor and navigation technologies have on that performance. The proof-of-principle approach was to instrument the robot and the operator interface to allow measures of operational performance in navigation-reconnaissance tasks. The instrumentation enabled measurement of efficiency and effectiveness (e.g., frequency of control actions, time between control actions) and errors and accuracy. These kinds of measurements provide data about mission performance contributions spanning robot capabilities, operator skills, employment strategy, interface limitations, and so on. The test demonstrated the usefulness of evaluating robot-operator teams to assess success and failure factors in the performance of robots and the effects of different technologies on that performance.
A Non-Task-Oriented Dialogue System Controlling the Utterance Length

In this paper, we propose a non-task-oriented dialogue system controlling the utterance length. The dialogue system can be classified into a task-oriented dialogue system or a non-task-oriented dialogue system. Recently, demand for the non-task-oriented dialogue system is increasing. The utterance length is one of the important information in a dialogue system. In general, our utterance length tends to be long when we are speakers. On the other hand, the length of our utterance tends to be short when we are listeners. In addition, the utterance length differs from person to person, so we change our utterance length for friendly communication. The effect of the utterance length has never considered in dialogue systems using Encoder-Decoder model. Therefore, we propose an utterance length estimator (ULE) and an index of the utterance length. ULE is a neural network which learns the utterance length by training data of dialogue. The index of the utterance length is the parameter considers user's personality and it is calculated during dialogue. Our dialogue system decides the length of system's utterance by ULE and index of the utterance length, and generates output sequences by using a neural encoder-decoder controlling output length. Experimental results show our system can decide the appropriate length of the utterance and makes users more satisfied than the conventional method.
Out of the Crisis

According to W. Edwards Deming, American companies require nothing less than a transformation of management style and of governmental relations with industry. In Out of the Crisis, originally published in 1982, Deming offers a theory of management based on his famous 14 Points for Management. Management's failure to plan for the future, he claims, brings about loss of market, which brings about loss of jobs. Management must be judged not only by the quarterly dividend, but by innovative plans to stay in business, protect investment, ensure future dividends, and provide more jobs through improved product and service. In simple, direct language, he explains the principles of management transformation and how to apply them.
Decision Making Power Over Reproductive Health Service Utilization And Associated Factors Among Married Women In Dupa Town And Surrounding Rural Kebeles, Illuababora Zone, South West Ethiopia,2020.

Background: Decision making power of women is one of the essential factors which have influence on maternal health service utilizations. Women’s lack of decision over reproductive health service utilization affects their protection from unwanted child bearing, unsafe sex and their consequences. Objective፡ Assess decision-making power on RH-service utilization and its associated factors among married women in Illubabor zone, South West Ethiopia, 2018.Methods: Community based comparative cross-sectional study was conducted from May to July, 2018 among 584(urban 292 and rural 292) married women of reproductive age group. The data were entered into EPI data version 3.1 and exported to SPSS version 20 computer software for analysis. Both Bivariate and multivariable logistic regression analysis was used. Level of significance was declared at a p value of <0.05Results: A total of 288 in urban and 288 in rural married women were interviewed and yields a response rate of 98.6% both in urban and rural. Decision-making power in urban and rural was 55.2% [95% CI (52.7-64.6)] and 40.3% [95% CI (39.9-52.5)] respectively. In urban, being wives of government employed spouses [AOR 2.102 95% CI (1.16, 3.81)], knowledge on RH [AOR 3.33, 95% CI (1.20, 12.49)], above five years in marriage [AOR 1.91, 95% CI (1.19, 7.70)], were found to be predictors of women’s decision-making power.Conclusion and recommendation: Urban women had better power to make decisions than rural on reproductive health service utilization. The study revealed that in urban settings those women who had marriage duration five and more than five years, being wives of government employed spouses had more likely decision making power on reproductive health utilization but not in rural settings. Reproductive health interventions in the area should be promoted by considering empowering of married women on reproductive health service utilization.Article summary:Strength: the study was representative for urban and rural women on reproductive health service utilization.Limitation: the study is not without limitation.it has all limitation of cross-sectional studyIntroduction
Voltage-current definition of impedance of double ridge waveguide using the finite element method

The impedance of a ridge waveguide may be calculated by recognising that its electric field distribution is the same at cut-off and at infinite frequency and that the ratio of the transverse fields is equal to the wave impedance at infinite frequency. This means that a knowledge of the electric field normal to the interior metalisation of the waveguide is sufficient for the evaluation of the voltage-current definition of the characteristic impedance in ridge and other homogeneous waveguides. This paper provides one numerical solution based on the finite element method. It also includes some additional calculations on the power-voltage and power-current definitions of impedance. It therefore embodies descriptions of all three classic definitions of impedance in this sort of waveguide.
Evaluation of Cash Utilization Efficiency of Listed Companies in Biomedical Industry Based on DEA Model

As the most liquid asset, cash plays an important role in the production, operation, investment and profit of enterprises. Most of the existing studies focus on the reasonable holding level of cash, the factors affecting cash flow and the enterprise value evaluation based on cash flow, while few studies directly consider the efficiency of cash use. Based on the related theory of cash utilization efficiency at domestic and abroad, this paper takes 24 listed companies in biomedical industry in Shanghai and Shenzhen Stock Exchanges from 2015 to 2017 as the research object, and carries out data envelopment analysis (DEA). Through the analysis of input data and output data, the comprehensive efficiency, pure technical efficiency and scale efficiency of sample companies are calculated, and the cash utilization efficiency of sample companies is quantitatively evaluated. The results show that DEA model can well evaluate the cash use efficiency of enterprises, thus how to improve the cash utilization efficiency is particularly important for listed companies in the biomedical industry.
Back-to-back tests of a high-speed generator

The machine under study is a permanent magnet synchronous generator intended for operation at high speeds together with a micro-turbine in a combined heat and power (CHP) unit. Target power is 110 kW at 70000 rpm. The study is both theoretical and experimental since it includes calculation of loss distribution and thermal analysis together with calorimetric measurements of losses and temperature measurements. In this paper the experimental part of the work is described. The theoretical part is covered in an accompanying paper.
Patterns of success and failure in the transition from school to work in Australia.

The Longitudinal Surveys of Australian Youth (LSAY) project studies the progress of several groups of young Australians as they move from school into post-secondary education and/or work. The oldest group in the project was born in 1961 while the youngest were in Year 9 in 1998. Data is collected through the Australian Youth Survey, a major longitudinal survey of youth that interviews a group of young Australians annually about their school experiences, post-school education and training participation, and employment activities. Approximately 60 per cent of school leavers in Australia do not enrol for either a university degree or TAFE associate diploma when they leave school, but make alternative choices such as seeking employment or starting an apprenticeship or traineeship. This report traces the pathways followed by this group during the seven years after leaving school and provides a detailed analysis of their labour market experiences. The analysis is based on the outcomes of a sample of Year 10 students in the late 1980s and measures their post-school education, training and employment experiences over the first seven post-school years. A second sample of Year 10 students from the mid-1990s is also used and their transition experiences are measured over three years. The aim is to identify the pathways of those who make successful transitions to stable, full-time employment and those who do not, and to highlight the implications for policy formation.
Fluid and structural modeling of the disease-free and atherosclerotic human carotid bifurcation

Cardiovascular disease is the leading cause of death in the United States. It claims more lives each year than the next 7 leading causes of death combined. Atherosclerosis is a major cause of cardiovascular disease and is an inflammatory process characterized by intimal thickening of arteries and plaque build up. Atherosclerosis can also damage the arterial wall and in turn cause the formation of a thrombus that can partially or totally occlude the diseased artery. If the actual vessel is the carotid artery, this often leads to a stroke. The focus of this study is to analyze the blood flow and arterial wall motion in the carotid bifurcation, a frequently diseased site of the cerebral circulation. Using ultrasound velocity measurements and magnetic resonance imaging (MRI) data of normal volunteers and patients in vivo, realistic blood velocity profiles and wall anatomy geometries are generated and imported into a commercial finite element package, ADINA (Automatic Dynamic Incremental Nonlinear Analysis, Watertown, MA) for computational analysis. Using three types of 3D transient finite element analyses: structure only, rigid walled fluid only and fully coupled fluid-structure interaction, areas of low fluid shear stress and high mechanical strain are identified. These results are compared with experimental evidence collected from the literature as well as histological data of plaque gathered from imaged patients after endarterectomy to identify potential correlations with regions of inflammation. In normal volunteers, localized high cyclic strains (which have been implicated in the stimulation of endothelial and smooth muscle cells) and high maximum wall shear stress temporal gradients (which are related to the expression of atherogenesis-related genes in endothelial cells) are observed at the flow divider and along the outside wall of the external carotid, both common sites of early inflammation. Localized separated flow regions are observed, especially near the outer wall of the internal carotid (the carotid bulb), in response to the localized abrupt changes in the curvature and cross-sectional area of the artery wall. The oscillation and low mean value of wall shear stress in these regions have been widely correlated to atherogenesis and late stage atherosclerotic inflammation.
Characterization of the HDTV Channel in the Denver Area

Development and testing of various implementations of High Definition Television (HDTV) require knowledge of the multipath characteristics of the radio channel over which the proposed signal will be carried. The Institute for Telecommunication Sciences (ITS) has begun a program to measure these characteristics in locations that might represent consumer habits. This report discusses the general background of the measurement techniques and describes measurements made in the vicinity of Denver, Colorado
Operating strain effects in Nb3Sn cable-in-conduit conductors

Nb3Sn superconductors show a dependence of the critical current and temperature on the strain state of the superconducting material. The basic causes of Nb3Sn strain effects, primarily differential thermal contraction between elements of the strand, have been known for 30 years, but have received more attention lately as part of a drive to achieve much higher operating current densities and make use of them in practical multistrand cables. The use of the cable-in-conduit (CICC) type of conductors to achieve high current capacity has proved popular, as the conductors offer good local cooling of the strands and distributed electrical contact between strands that is essential to provide stability against the inevitable current non-uniformity that arises with parallel connection of the strands. However, the essential openness of the cable means that the strands have to support local magnetic loads as well as being exposed to the overall magnet strain displacements. Simple structural models are developed based on mechanical measurements on cable-in-conduit conductors which are able to successfully simulate the measured superconducting performance. These suggest that degradation observed in large cables is due to a combination of the repeated bending strain experienced by the strands and filament fracture, which is starting to occur to a significant extent in some large cables. Superconducting performance improvements in strands can only be properly utilized with improved support of the strands in the cable, implying a more ordered structure than in a multistage.
Antennas Design for UHF Passive RFID Tags

There are many different applications for RFID tags, each one related to the way they are designed. In this document we present the basics to design antennas for UHF-RFID passive tags using some miniaturization techniques and inductive coupling. Also, we show the importance of the antenna parameters and the methodology for design our own antenna in a few steps using the methods explained in this work.
Comments on "Properties of and generalized full-wave transmission line models for hybrid (Bi)(an)iso

For the original paper see ibid., vol. 44, no. 11, p. 2064-2075 (1996). In this comment on the aforementioned paper, the problems of reciprocity, bidirectionality, and relation between the modal field patterns in waveguides with bianisotropic media are discussed. In addition to the three McIsaak's elements of symmetry, which determine bidirectionality in waveguides, two new elements of symmetry for this purpose are introduced. The author replies to this comment.
S5: An Application Sensitive QoS Assurance System via SDN

With the development of the network applications and services (e.g., video conferencing and streaming, online gaming, e-commerce, etc.), the user experience is becoming increasingly important. For network operators, deploying effective Quality of Service (QoS) technologies is a key approach to ensure a high-quality user experience. Despite a large volume of works from both academia and industry, QoS has not been completely deployed in today's networks. The primary reasons are the complexity of proposed QoS solutions and largely manual per-device configuration of QoS knobs by network administrators. Software-defined networking (SDN) provides a promising alternative due to its centralized global network view, flexible match fields and the separation of the control plane and data plane. In this paper, we present S5, an application sensitive QoS assurance system via $S$ DN. In S5, we propose a novel QoS measurement framework based on the vertical QoS mapping between the metrics at different network layers. Based on the precise and fine-grained QoS measurement, our system provides a series of QoS guarantee mechanisms, including intelligent call admission control, optimized queue management, and QoS-routing, to guarantee the QoS metrics for the corresponding application. We implement a prototype to validate the feasibility and effectiveness of our system, and get inspired results.
Mapping of Boolean Logic Functions onto 3D Memristor Crossbar

A novel 3D memristive crossbar architecture and Boolean logic computation on it is explored in the paper. The two approaches for 2D crossbar mapping-Compact and Parallel mapping schemes-are extended along with inclusion of possible parallelism between gates and the pipelining between the different layers is explored. The proposed 3D crossbar mapping schemes are compared in terms of tsteps and crossbar size required, and is also compared with the existing works on 2D crossbars for illustrating the possible advantages of 3D crossbars.
Energy Storage System Application in MEA Building

Thailand Power Development Plan (PDP) 2015; a long-term power procurement plan that its demand forecasting is adjusted to correspond to directions of economic growth, the Energy Efficiency plan, and the Alternative Energy Development plan. PDP 2015's subject matters is to increase generation from renewable energy. Additionally, MEA is well aware that greenhouse gas emission is caused by uses of electricity. Therefore, MEA initiates technology experiment project, which is called Smart Metro Grid. Smart Metro Grid is viewed as electric power distribution system with integration of both electrical system infrastructure and ICT leads to higher reliability and stability, and accommodating renewable energy source, as well as enhancing quality service for greatest public benefits and sustainable development. In addition, the initiation of energy management pilot project is addressed. The pilot project will apply Smart Grid technology using Solar PV, Energy Storage System by Energy Management System to control electric power in the system.
A Traffic Speed Imputation Method Based on Self-adaption and Clustering

Traffic speed estimation plays an important role in Intelligent Transportation System (ITS) since current speed collections cannot cover all roads and may lose data. A tensor completion method called high accurate low rank tensor completion (HaLRTC), one of the research methods on speed imputation, has great performances in this field. In this paper, we propose a method based on HaLRTC, and analyze how the parameters affect the method. Then we can predetermine these parameters with incomplete data. To improve the efficiency, we use variances of one road segment in all days as its feature. We do k-means++ clustering on road segments with their variance feature, as for each cluster we apply HaLRTC on it independently. Then we merge these completion tensors into a whole tensor. The proposed method HaLRTC-CSP applies HaLRTC and is based on clustering and self-adaption parameters. Experiments is implemented on the speed dataset in Guangzhou, China, and the results validate HaLRTC-CSP outperforms other methods.