Miracle-dz/UniFAR-FTUs huggingface dataset:
Wind turbine generator low voltage ride through requirements and solutions

Utilities have responded to the significant increase in the number of installed and proposed wind farms by developing specific grid codes derived from those used for conventional generators. The presentation summarizes the main grid code requirements, related to reactive power and voltage control, low voltage ride through (LVRT), and other issues such as control of real power. It provides a technical overview of the LVRT requirements in different jurisdictions. It reviews some of the LVRT solutions available for wind turbines based on doubly fed induction generators (DFIG). The impact of these solutions on the DFIG response is evaluated under different fault and operating conditions. The investigation is carried out on a representative power system benchmark. Solutions are compared from the machine performance and grid voltage response viewpoints. The parameters affecting the performance of the solutions are presented.
Determinants of Intention to Recommend WeChat Mobile Payment Innovation in China to be implemented in Indonesia

Mobile payment has received its importance recognition from the global society including government and businesses. It can lead to operation cost reduction on the cash-paper production on the Bank. Additionally, to familiarize the mobile payment utilization to the society has found to be a tough task for businesses and government. Therefore, the current study has objective to examine the determinants of intention to recommend mobile payment technology on the society. Hence, the authors picked WeChat mobile payment innovation in China as the mobile payment innovation method used to analyze the intention to recommend the utilization of mobile payment. The collected data were analyzed by the utilization of Partial Least Square (PLS)- Structural Equation Modelling (SEM) v. 3.2. 7 and IBM SPSS Statistic 24. UTAUT 2 Theory, perceived technology security, and customer satisfaction were employed to examine the issues appear in the current study but hedonic motivation, price value, habit and the moderators role were excluded. Therefore, the findings indicate that perceived technology security have a positive significant relationship while performance expectancy, effort expectancy, facilitating conditions, and social influence have a positive insignificant relationship on behavioral intention to adopt WeChat mobile payment. Moreover, Behavioral intention to adopt WeChat mobile payment and customer satisfaction have a positive significant relationship on the intention to recommend the designated technology. It also signified that perceived technology security is having indirect effect to behavioral intention to recommend WeChat mobile payment innovation.
A Novel Single-Inductor Dual-Input Dual-Output DC–DC Converter With PWM Control for Solar Energy Harvesting System

A novel single-inductor dual-input dual-output dc-dc converter with pulse width modulation control is proposed for a solar energy harvesting system. The first input of the converter is from photovoltaic (PV) cells and the second input is a rechargeable battery. Apart from the conventional role of providing a regulated output voltage to power the loading circuits, the converter also clamps the PV cells' voltage to the maximum power point value to maximize efficiency. When the PV cells harvest more power than the load, the surplus energy is used to charge the rechargeable battery. When the PV cells cannot harvest sufficient power, the converter schedules the PV cells and the battery to power the load together. A test chip was fabricated using a 0.35-μm CMOS process and measured to verify the operation of the proposed dc-dc converter and to demonstrate the power transfer efficiency of the solar power management system.
Concept Analysis of Burden in Caregivers of Stroke Survivors During the Early Poststroke Period

It is important to understand burden in caregivers of stroke survivors during the early poststroke period if we are to prevent or decrease the longer-term experience of caregiver burden and its consequences. This article reports a concept analysis of burden in caregivers of stroke survivors during the early poststroke period. A literature review using MEDLINE, PubMed, CINAHL, PsycINFO, and ISI Web of Knowledge databases (1960-2014) identified 32 relevant articles published from 1993 to 2013. Rodgers’s evolutionary method of concept analysis was used. Three attributes—objective and subjective aspects, time spent caring for the stroke survivor, and uncertainty about the future for the stroke survivor and caregiver—were identified. Multiple definitions of caregiver burden have been used. In the early poststroke period, burden appears closely interconnected with other factors, some of which may be modifiable.
The effect of remuneration committees, directors’ shareholding and institutional ownership on the remuneration of directors in the top 100 companies in South Africa

Executive directors’ remuneration of leading South African companies often attracts the attention of the press, shareholders and unions. The research on which this article is based investigated whether executive directors’ remuneration of the Top 100 companies listed on the Johannesburg Securities Exchange (JSE) is influenced by the implementation of certain corrective corporate governance measures. The remuneration of executive directors was regressed on a number of firm and corporate governance characteristics to determine whether these characteristics have an influence on executive directors ’remuneration. It was found that corporate governance reforms relating to institutional ownership, the number of non-executive directors on the remuneration committee, shareholder voting on the remuneration policy and the number of remuneration committee meetings act as an effective governance tool to protect shareholders’ interests with regard to some of the elements of executive directors’ remuneration.
RT-OCFB: Real-Time Based Optimized Cipher Feedback Mode

Abstract Several modes of operation have been built upon block cipher security. Among them, CFB is considered to be one of the popular modes of operation because of its self-synchronizing property. Besides, appearance of OCFB makes CFB even more competitive. However, because of the stalling problem (i.e., there is a need to stall while doing block encryption) and the inability to arrange the keystream in advance, both the CFB and OCFB modes are considered to be inadequate for such real-time applications, where the appearance of inputs is expected to be uniform. In this article, researchers present a new mode of operation based on the underlying foundation of both the CFB and OCFB modes of operation, called real-time based optimized cipher feedback mode (RT-OCFB), which remedies this problem. They also argue that the proposed mode of operation (RT- OCFB) holds the similar imperative security properties as CFB and OCFB, which are indeed essential for modern cryptography.
Estimation des cartes du temps de collision (TTC) basée sur le flot optique en vision para-catadioptrique

RESUME. Cet article s'interesse a l'estimation du temps de collision d'un robot mobile muni d'une camera catadioptrique. Ce type de camera est tres utile en robotique car il permet d'ob-tenir un champ de vue panoramique a chaque instant. Le temps de collision a ete largement etudie dans le cas des cameras perspectives. Cependant, ces methodes ne sont pas directement applicables et necessitent d'etre adaptees, a cause des distorsions des images obtenues par les cameras omnidirectionnelles. Dans ce travail, nous proposons de tirer parti du flot optique cal-cule sur les images omnidirectionnelles pour en deduire le temps de collision (TTC) entre le robot et l'obstacle. Nous verrons que la double projection d'un point 3D sur le miroir puis sur le plan camera aboutit a une nouvelle formulation du TTC pour les cameras catadioptriques. Cette formulation nous permet de connaitre a chaque instant et sur chaque pixel de l'image le TTC a partir du flot optique en ce point. Notre approche est validee sur des donnees de syn-these et des experimentations reelles. Enfin, nous montrons que ce calcul permet de detecter les obstacles situes dans l'axe du mouvement du robot.
Adaptive Exponential Synchronization of Coupled Complex Networks on General Graphs

We investigate the synchronization in complex dynamical networks, where the coupling configuration corresponds to a weighted graph. An adaptive synchronization method on general coupling configuration graphs is given. The networks may synchronize at an arbitrarily given exponential rate by enhancing the updated law of the variable coupling strength and achieve synchronization more quickly by adding edges to original graphs. Finally, numerical simulations are provided to illustrate the effectiveness of our theoretical results.
The Effect of Grape Seed Extract on Estrogen Levels of Postmenopausal Women: A Pilot Study

ABSTRACT The role of estrogens in breast cancer (BC) development is widely accepted, leading to the development of selective estrogen receptor modulators and aromatase inhibitors for BC treatment and prevention. However, because of potential adverse effects, healthy women with high risk of BC are hesitant to take them. Preliminary evidence from animal studies shows that grapes may have an aromatase-inhibiting effect, decreasing estrogen synthesis and increasing androgen precursors. We conducted a randomized, double-blind, dose-finding early-phase trial on the effect of grape seed extract (GSE) on estrogen levels. Postmenopausal women who met study inclusion criteria (N = 46) were randomly assigned to daily GSE at a dose of 200, 400, 600, or 800 mg for 12 weeks. Primary outcome was change in plasma levels of estrogen conjugates from baseline to 12 weeks posttreatment. Thirty-nine participants (84.8%) completed the study. GSE in the 4 daily doses did not significantly decrease estrogen or increase androgen precursors.
Ethics and Privacy Implications of Using the Internet and Social Media to Recruit Participants for Health Research: A Privacy-by-Design Framework for Online Recruitment

Background The Internet and social media offer promising ways to improve the reach, efficiency, and effectiveness of recruitment efforts at a reasonable cost, but raise unique ethical dilemmas. We describe how we used social media to recruit cancer patients and family caregivers for a research study, the ethical issues we encountered, and the strategies we developed to address them. Objective Drawing on the principles of Privacy by Design (PbD), a globally recognized standard for privacy protection, we aimed to develop a PbD framework for online health research recruitment. Methods We proposed a focus group study on the dietary behaviors of cancer patients and their families, and the role of Web-based dietary self-management tools. Using an established blog on our hospital website, we proposed publishing a recruitment post and sharing the link on our Twitter and Facebook pages. The Research Ethics Board (REB) raised concern about the privacy risks associated with our recruitment strategy; by clicking on a recruitment post, an individual could inadvertently disclose personal health information to third-party companies engaged in tracking online behavior. The REB asked us to revise our social media recruitment strategy with the following questions in mind: (1) How will you inform users about the potential for privacy breaches and their implications? and (2) How will you protect users from privacy breaches or inadvertently sharing potentially identifying information about themselves? Results Ethical guidelines recommend a proportionate approach to ethics assessment, which advocates for risk mitigation strategies that are proportional to the magnitude and probability of risks. We revised our social media recruitment strategy to inform users about privacy risks and to protect their privacy, while at the same time meeting our recruitment objectives. We provide a critical reflection of the perceived privacy risks associated with our social media recruitment strategy and the appropriateness of the risk mitigation strategies that we employed by assessing their alignment with PbD and by discussing the following: (1) What are the potential risks and who is at risk? (2) Is cancer considered “sensitive” personal information? (3) What is the probability of online disclosure of a cancer diagnosis in everyday life? and (4) What are the public’s expectations for privacy online and their views about online tracking, profiling, and targeting? We conclude with a PbD framework for online health research recruitment. Conclusions Researchers, REBs, ethicists, students, and potential study participants are often unaware of the privacy risks of social media research recruitment and there is no official guidance. Our PbD framework for online health research recruitment is a resource for these wide audiences.
New 30-m Flexible Hybrid Energy Transfer Line With Liquid Hydrogen and Superconducting  $\hbox{MgB}_{2}$ Cable—Development and Test Results

In the framework of the second stage of the Russian R&D program for the development of hybrid energy transfer lines (HETLs), the new 30-m MgB2 superconducting cable with high voltage insulation has been developed and tested. The superconducting cable was inserted into a newly developed flexible 30-m hydrogen cryogenic line that has three sections with different types of thermal insulation in each section. High-voltage current leads were also developed. The superconducting cable, cryostat, and current leads have been tested in October 2013. Cable critical current was ~3500 A at ~21 K. Cable and current leads passed a high voltage test with 50-kV dc at liquid hydrogen temperature. The tests were performed at temperatures from 20 to 26 K, hydrogen flow from 70 to 450 g/s, and pressure from 0.25 to 0.5 MPa. It was found that the active evaporating cryostatting system as a thermal insulation practically eliminated heat transfer from room temperature to liquid hydrogen. The flexible 30-m HETL developed is able to deliver ~ up to 60 MW of chemical power and ~75 MW of electrical power, i.e., ~135 MW in total. MgB2 cable design and test results of hybrid energy transfer lines are presented and discussed.
Direct Measurements of Reynolds Stresses and Turbulence in the Bottom Boundary Layer

Abstract : Predictions of the ocean dynamics, sediment transport, pollutant dispersal and biological processes require knowledge on the characteristics of turbulence in the bottom boundary layer. Our goal is to: a. Measure the Reynolds stresses (free of wave contamination), velocity profile, dissipation rate, and turbulent spectra in the coastal bottom boundary layer using Particle Image Velocimetry (PIV). b. Quantify the temporal variation of turbulent stresses, production, dissipation and buoyancy flux in relation to the local oceanographic parameters, such as waves, currents, stratification, internal waves and the nature of the water-sediment interface. c. Examine the structure of the flow, vertical vorticity transport, formation and upward migrations of large coherent vortex structures. Presently there is very little information on the dynamics and impact of large coherent structure in the bottom boundary layer on turbulence and sediment entrainment. d. Study the mechanisms and extent of sediment re-suspension process by simultaneously measuring the flow structure and particle distributions. e. Use the PIV data for addressing Sub-Grid Scale Modeling issues for Large Eddy Simulation in oceanic flows.
MANAGING HUMAN RESOURCE THROUGH GREEN POLICY: WAYS OUT AND ITS IMPLICATION

This paper attempts to highlight the green policy and its practices for managing the human resource in the organizations and also seeks to ways out some techniques to make green HR policy useful for the organizational practices. In this study, the authors used secondary data through an extensive literature survey form different sources. The significant findings are that all over the world, organizations are trying to practice green management or implementation of green policy for their daily activities as well as to ensure the health and well-being of their human resources. Though the green system is beneficial for both the organizations as well as employees but it costs a lot in the initial stage to meet up the preliminary fixed costs, train the people and to make people ready to work as per green policies. Gathering experiences from different research in advanced countries the authors try to conclude the study by mentioning some ways- how to manage HR through green policy or green human resource management (HRM) techniques.
Horizontal and vertical tree community structure in a lowland atlantic rain forest, southeastern Brazil

The horizontal and vertical tree community structure in a lowland Atlantic Rain Forest was investigated through a phytosociological survey in two 0.99 ha plots in the Intervales State Park, Sao Paulo State. All trees > 5 cm diameter at breast height were recorded. 3,078 individuals belonging to 172 species were identified and recorded. The Shannon diversity index was H' = 3.85 nat.ind. -1. The Myrtaceae family showed the greatest floristic richness (38 species) and the highest density (745 individuals) in the stand. Euterpe edulis Mart. had the highest importance value (33.98%) accounting for 21.8% of all individuals recorded. The quantitative similarity index was higher than the qualitative index, showing little structural variation between plots. However, the large number of uncommon species resulted in pronounced floristic differences. A detrended correspondence analysis (DCA) generated three arbitrary vertical strata. Stratum A (> 26 m), where Sloanea guianensis (Aubl.) Benth. and Virola bicuhyba (Schott. ex A.DC.) Warb. were predominant showed the lowest density. Stratum B (8 m < h < 26 m) had the greatest richness and diversity, and stratum C (< 8 m) showed the highest density. Euterpe edulis, Guapira opposita (Vell.) Reitz, Garcinia gardneriana (Planch. & Triana) Zappi, and Eugenia mosenii (Kausel) Sobral were abundant in strata B and C. The occurrence of strata in tropical forests is discussed and we recommend the use of DCA for others studies of the vertical distribution of tropical forest tree communities.
Noninvasive respiratory management and diaphragm and electrophrenic pacing in neuromuscular disease and spinal cord injury

The purpose of this monograph is to describe noninvasive management of respiratory muscle weakness/paralysis for patients with neuromuscular disease (NMD) and spinal cord injury (SCI). Noninvasive ventilation (NIV) assists and supports inspiratory muscles, whereas mechanically assisted coughing (MAC) simulates an effective cough. Long‐term outcomes will be reviewed as well as the use of NIV, MAC, and electrophrenic pacing (EPP) and diaphragm pacing (DP) to facilitate extubation and decannulation. Although EPP and DP can facilitate decannulation and maintain alveolar ventilation for high‐level SCI patients when they cannot use NIV because of lack of access to oral interfaces, there is no evidence that they have any place in the management of NMD. Muscle Nerve, 2013
Comparison between Periodic Function space based power theory and traditional power theory

The comparison between periodic function space based power theory and three other power theories including traditional power theory , instantaneous power theory put forward by Akagi and Fryze power theory are analyzed in this paper. The consistency and difference are indicated in several different aspects: physical meaning, mathematical concept and the derivation of expressions. Analyses shows that traditional power theory can be regarded as a special case of periodic function space based power theory, in other words, periodic function space based power theory can be regarded as the generalization of traditional power theory. Fryze power theory is in accordance with periodic function space based power theory in single-phase nonsinusoidal system, instantaneous power theory is in accordance with periodic function space based power theory in three-phase symmetrical system without zero-sequence component.
Choosing a coverage probability for forecasting the incidence of cancer

Loddon Mallee Integrated Cancer Service plays a key role in planning the delivery of cancer services in the Loddon Mallee Region of Victoria, Australia. Such planning relies on the accuracy of forecasting the incidence of cancer. Perhaps more importantly is the need to reflect the uncertainty of these forecasts, which is usually carried out through prediction intervals. Standard confidence levels (e.g., 90% or 95%) are typically employed when forecasting the incidence of cancer, but decision‐theoretic approaches are available to help choose an optimal coverage probability by minimizing the combined risk of the interval width and noncoverage of the interval. We proceed with the decision‐theoretic framework and discuss some general strategies for defining candidate loss functions for forecasting the incidence of cancer, such as the data we analyze for the Loddon Mallee Region. Copyright © 2014 John Wiley & Sons, Ltd.
Declines Noted in Cognitive Processes and Association With Achievement Among Children With Leukemia.

PURPOSE/OBJECTIVES To assess change in specific cognitive processes during treatment with chemotherapy only among children with acute lymphoblastic leukemia (ALL). DESIGN A prospective, repeated measures design. SETTING Pediatric oncology treatment centers at Banner-University Medical Center Tucson/Banner Children's-Diamond Medical Center (University of Arizona) and Texas Children's Cancer and Hematology centers (Baylor College of Medicine) in Houston. SAMPLE 71 children with ALL, with a mean age of 6.18 years at the time of diagnosis. METHODS Using mixed-effects latent growth curve modeling with time since diagnosis as a fixed effect, age-adjusted standardized measures of working memory, processing speed, executive function, and attention were obtained and repeated about one and two years later. A subsample was tested for academic achievement at the end of treatment. MAIN RESEARCH VARIABLES Verbal working memory, visual spatial memory, processing speed, academic achievement, age, and gender. FINDINGS A significant main effect was observed for age at diagnosis on decline in verbal working memory during treatment. Planned contrasts revealed greater decline among children who were diagnosed when aged younger than five years compared to those diagnosed when aged five years or older. Decline in verbal working memory and achievement in letter-word identification and calculation skills were associated, and decline in spatial memory was associated with calculation. A main effect of gender was observed on processing speed, with female patients showing greater decline than male patients. CONCLUSIONS Findings from this study may guide the timing of interventions that could improve school achievement among survivors. IMPLICATIONS FOR NURSING Children undergoing treatment for ALL may experience issues with verbal working memory and increased difficulty in school. Nurses are in a position to refer parents and children to school resources for additional academic support.