Miracle-dz/UniFAR-FTUs huggingface dataset:
An Integrated Power Converter-Based Brushless DC Motor Drive System

In this article, an integrated power converter with dc bus voltage boosting capability is proposed for driving the brushless dc motors. In the topology, a bidirectional buck/boost dc–dc (BBD) converter can be integrated with the three-phase voltage-source inverter (TVSI) through a common three-switch leg. As compared with the traditional TVSI with a front-end BBD converter (TVSI-BBD), one power switch and its associate driving circuits in the BBD converter part can be saved. Thus, the integrated power converter has the benefits of reducing the converter size, lowering system costs, and enhancing power density. To decouple the dc bus voltage boosting control and the speed closed-loop control, a field-oriented control algorithm with space vector pulsewidth modulation technique is also proposed. The feasibility of the driving system is evaluated through systematic analysis and validated experimentally on a developed motor drive system prototype.
Opinion-Based Research: Lessons Learned from Four Approaches

Selecting an appropriate research method is a critical step in any rigorous research effort. The selected research methodology impacts the data collected, the scope of inference, and the ability to draw defendable conclusions. Many times the nature of the construction industry and the sensitivity of information limit researchers' ability to conduct experimental, empirical, or observational studies that rely on objective data. In such circumstances, alternative methods of research that utilize expert judgment and opinion may be considered. Several techniques such as group-brainstorming, the Delphi method, the Nominal Group Technique, and surveys may be appropriate. However, selecting one or more of these research methods depends largely on the nature, resources, and limitations of the research study. This paper reviews four major approaches of obtaining expert opinion, describes lessons learned on four independent, major studies, and provides a framework to consider when selecting a specific method given project characteristics. The resulting flowchart can be used to aid in selection of a research method given the specific characteristics of the study such as limitations in time and funding, desired information, and location and availability of participants.
Constructing a Real-Time Value-Chain Integration Architecture for Mass Individualized Juice Production

Mass individualized production refers to the mass production of individualized products. It becomes important for delivering a personalized customer experience in the Industrial Revolution 4.0 era. Developing seamless value chain integration between enterprises to achieve mass individualized production is challenging. Based on Reference Architecture Model Industrie 4.0 (RAMI 4.0), this paper aims to address two major challenges, which are asset modeling and integration, and data communication and brokering in a value chain data exchange ecosystem. This paper proposes a communication architecture that enables both vertical and horizontal value-chain integration. A proof-of-concept is built, which involves two stakeholders. The first is the individualized juice online ordering system, named PEC, and the second is a highly automated individualized mixed juice production manufacturing line, named OMIS. Three different tests are conducted in the experiments. The first is to test the creation of assets wrapped in the asset administration shell. The second is to test the connectivity between the Asset Brokering Manager (ABM) Connector and the ABM Portal. Last is to test the connectivity performance between two Asset Administration Systems. As a result, the experiments successfully created the asset instance data accurately, and the data were published in the ABM Portal for subscription by PEC and OMIS. The connectivity tests from OMIS to PEC, and vice versa, were successful, with the time taken of 114 and 121 ms, respectively.
Changes in diaphragm contractility in cigarette smoking‐exposed and smoking cessation rats are associated with alterations in mitochondrial morphology and homeostasis

The effects of cigarette smoking (CS) cessation on the diaphragm are unknown, as are the CS‐induced diaphragmatic mitochondrial changes. We examined the changes in diaphragm contractility, as well as alterations in mitochondrial morphology, function and homoeostasis during CS exposure and after cessation. Rats were randomly divided into CS exposure and CS cessation groups: 3‐month CS (S3), 6‐month CS (S6), 6‐month CS followed by 3‐month cessation (S6N3). The changes in the diaphragm were investigated, including contractile properties, the ultrastructure, mitochondrial function and the expression of markers of mitochondrial homoeostasis. CS caused irreversible histological disruption and functional depression in the lungs, along with significantly declines in diaphragmatic contractility and more severely in extensor digitorum longus muscular contractility. Such declines were recovered after 3‐month CS cessation. CS exposure disrupted the diaphragmatic mitochondrial morphology and function (S6), which was significantly alleviated in the S6N3 group. The mitochondrial homoeostasis was depressed (S6), as indicated by the downregulation of Pink1 and Mfn1. Interestingly, the Mfn1 level was recovered after smoking cessation (S6N3). In conclusion, smoking cessation eased CS‐induced diaphragmatic dysfunction and mitochondrial deregulation, which are likely associated with deregulated mitochondrial homoeostasis.
Local-to-Global Deep Clustering on Approximate Uniform Manifold

Deep clustering usually treats the clustering assignments as supervisory signals to learn a more compact representation with deep neural networks, under the guidance of clustering-oriented losses. Nevertheless, we observe that, without reliable supervision, such losses for global clustering would destroy the locally geometric structure underlying data. In this paper, we propose a local-to-global deep clustering method based on approximate uniform manifold (LGC-AUM) to address this issue in a two-stage fashion. In the local stage, an intra-manifold preservation loss is proposed to preserve intra-manifold structures locally on basis of approximate uniform manifold, and an inter-manifold discrimination loss is for global inter-manifold structure. Thus, this stage serves to learn more discriminative structure-preserving features by reducing the correlations between different manifolds, which paves the way for the final clustering. Build off the learned features, the second stage explores a clustering loss based on approximate uniform manifold to establish stable network training for effective clustering with two auxiliary distributions. Experiments on five benchmark datasets verify the efficacy of our LGC-AUM as compared to several well-behaved clustering counterparts.
Novel Binary Mixtures of Alkanolamine Based Deep Eutectic Solvents with Water—Thermodynamic Calculation and Correlation of Crucial Physicochemical Properties

This paper demonstrates the assessment of physicochemical and thermodynamic properties of aqueous solutions of novel deep eutectic solvent (DES) built of tetrabutylammonium chloride and 3-amino-1-propanol or tetrabutylammonium bromide and 3-amino-1-propanol or 2-(methylamino)ethanol or 2-(butylamino)ethanol. Densities, speeds of sound, refractive indices, and viscosities for both pure and aqueous mixtures of DES were investigated over the entire range of compositions at atmospheric pressure and T = (293.15 ‒ 313.15) K. It was concluded that the experimental data were successfully fitted using the Jouyban–Acree model with respect to the concentration. Obtained results showed that this mathematical equation is an accurate correlation for the prediction of aqueous DES properties. Key physicochemical properties of the mixtures—such as excess molar volumes, excess isentropic compressibilities, deviations in viscosity, and deviations in refractive indices—were calculated and correlated by the Redlich–Kister equation with temperature-dependent parameters. The non-ideal behavior of the studied systems were also evaluated by using the Prigogine−Flory−Patterson theory and the results were interpreted in terms of interactions between the mixture components.
Novel Pyridothienopyrimidine Derivatives: Design, Synthesis and Biological Evaluation as Antimicrobial and Anticancer Agents

The growing risk of antimicrobial resistance besides the continuous increase in the number of cancer patients represents a great threat to global health, which requires intensified efforts to discover new bioactive compounds to use as antimicrobial and anticancer agents. Thus, a new set of pyridothienopyrimidine derivatives 2a,b–9a,b was synthesized via cyclization reactions of 3-amino-thieno[2,3-b]pyridine-2-carboxamides 1a,b with different reagents. All new compounds were evaluated against five bacterial and five fungal strains. Many of the target compounds showed significant antimicrobial activity. In addition, the new derivatives were further subjected to cytotoxicity evaluation against HepG-2 and MCF-7 cancer cell lines. The most potent cytotoxic candidates (3a, 4a, 5a, 6b, 8b and 9b) were examined as EGFR kinase inhibitors. Molecular docking study was also performed to explore the binding modes of these derivatives at the active site of EGFR-PK. Compounds 3a, 5a and 9b displayed broad spectrum antimicrobial activity with MIC ranges of 4–16 µg/mL and potent cytotoxic activity with IC50 ranges of 1.17–2.79 µM. In addition, they provided suppressing activity against EGFR with IC50 ranges of 7.27–17.29 nM, higher than that of erlotinib, IC50 = 27.01 nM.
PEMBELAJARAN JARAK JAUH PADA MASA PANDEMI COVID-19 DI PERGURUAN TINGGI KEAGAMAAN HINDU

Penelitian ini bertujuan untuk mendeskripsikan bentuk, kendala, dan upaya mengatasi kendala Pembelajaran Jarak Jauh (PJJ) pada masa pandemi Covid-19 di perguruan tinggi keagamaan Hindu. Penelitian ini merupakan penelitian kuantitatif jenis survey. Penentuan subjek penelitian menggunakan nonprobability sampling jenis purposive sampling. Metode pengumpulan data menggunakan metode kuesioner (paperless melalui Google Form) yang disebarkan secara online melalui WhatsApp dan pencatatan dokumen. Metode analisis data menggunakan statistik jenis statistik deskriptif. Berdasarkan hasil penelitian, disimpulkan bahwa: 1) bentuk PJJ pada masa pandemi Covid-19 di perguruan tinggi keagamaan Hindu dominan menggunakan chat, konferensi video, dan asinkron; 2) kendala yang dihadapi dalam penerapan PJJ pada masa pandemi Covid-19 di perguruan tinggi keagamaan Hindu dominan karena masalah jaringan internet, tidak paham materi kuliah, tidak konsentrasi belajar, dan tidak dapat bertanya langsung dengan dosen; dan 3) upaya yang dilakukan untuk mengatasi kendala-kendala penerapan PJJ pada masa pandemi Covid-19 di perguruan tinggi keagamaan Hindu, yaitu mengkondisikan tempat, perangkat digital, waktu, dan pikiran yang baik dalam mengikuti PJJ di perguruan tinggi.
Towards practical privacy in existing distributed systems

Distributed systems consisting of multiple, loosely coupled components perform many critical tasks in our daily lives: ranging from running aircrafts and industrial control systems, to managing our financial transactions and providing Internet access. Some components in such systems, however, are inevitably more vulnerable than others, which can lead to severe privacy breaches. The recent trends in computing, such as widespread use of cloud computing infrastructures, mash-up based Web 2.0 sites, and mobile smartphones, have increased the complexity and the size of the user base of today’s distributed systems. This increase in complexity has increased the potential avenues for privacy compromises, while the larger user base implies that the privacy attacks can impact millions of users in various ways. Examining existing systems reveals that they often make a hard choice between privacy and performance. One set, such as third-party compute clouds, focus mainly on performance but provide minimal privacy guarantees to users. The other set, such as anonymous communication systems, focus on providing strong privacy guarantees but suffer from poor performance. Moving forward, the robust distributed systems we need must provide both usability in terms of good user-side performance and also protect privacy of their many users. In this thesis, we argue that it is necessary to design these systems by giving high priority to both privacy and performance. We present our research on third-party compute clouds, peer-to-peer anonymous communication systems, and online social networks. Our proposed mechanisms dramatically improve even existing systems to attain high privacy and high performance without significantly degrading their existing properties. Thus, we have made a significant first step in making today’s distributed systems usable and safe for users to use.
The Efficacy of Screencasting Technology in the Classroom.

Whether you’re just starting to use technology in the classroom or you’re well versed in the tools and terminology of edtech, you may be curious how other instructors are using technology in their classrooms. You may also want to know how they would describe the benefits of technology in their courses. Ready to find a learning solution that supports students’ desire to succeed in your class? In Cengage Learning’s latest insights report, “Custom Learning Solutions Boost Student Engagement and Improve Learning Outcomes,” you will learn more about the benefits of implementing technology-based learning solutions in your course. Your technology in the classroom screencast tools may be web-based, software, or a browser add-on, and include some or all of the following: A Spotlight for the mouse. The Presenter’s picture, usually in the right corner. Ability to edit the video once completed. Screencast-o-matic is one of the easiest and most popular screencasting programs in classrooms. Its free version is robust, records up to 15 minutes, offers a highlighted mouse and an inscreen webcam picture. You can record directly from the Screencast-o-matic website, requiring no installation, registration, or download. The fee version is a download that allows longer videos, more options for saving, and the ability to store videos on their server. Definition learners bring their own technology into the classroom for use as part of the learning activity. learners and teachers create an electronic catalogue of work that tracks their learning journey. This is usually online and often uses multimedia files. learners discover new content before the lesson from online videos or resources and then apply this knowledge in more personalised work in the classroom. Example. Benefit(s). • Evidence suggests that at the moment the potential of digital technologies in the classroom is not being realised. A report on digital technologies from the charity Nesta in the UK notes, “What is clear is that no technology has an impact on learning in its own right; rather, its impact depends upon the way in which it is used” (2012:9). Practical tips View Item
Universal Hepatitis B Antibody Screening and Vaccination in Pregnancy

Universal hepatitis B immunity screening and vaccination among pregnant women is cost effective. OBJECTIVE: To evaluate the cost effectiveness of universal screening for hepatitis B immunity and vaccination among pregnant women in the United States. METHODS: We designed a decision-analytic model to evaluate the outcomes, costs, and cost effectiveness associated with universal hepatitis B virus (HBV) immunity screening in pregnancy with vaccination of susceptible individuals compared with no screening. A theoretical cohort of 3.6 million women, the approximate number of annual live births in the United States, was used. Outcomes included cases of HBV, hepatocellular carcinoma, decompensated cirrhosis, liver transplant and death, in addition to cost and quality-adjusted life-years (QALYs). Model inputs were derived from the literature, and the willingness-to-pay threshold was $50,000 per QALY. Univariate sensitivity analyses and Monte Carlo simulation models were performed to evaluate the robustness of the results. RESULTS: In a theoretical cohort of 3.6 million women, universal HBV immunity screening and vaccination resulted in 1,702 fewer cases of HBV, seven fewer cases of decompensated cirrhosis, four fewer liver transplants, and 11 fewer deaths over the life expectancy of a woman after pregnancy. Universal screening and vaccination were found to be cost effective, with an incremental cost-effectiveness ratio of $1,890 per QALY. Sensitivity analyses demonstrated the model was robust even when the prevalence of HBV immunity was high and the annual risk of HBV acquisition low. CONCLUSION: Among pregnant women in the United States, universal HBV immunity screening and vaccination of susceptible persons is cost effective compared with not routinely screening and vaccinating.
Fatigue: Investigation of a Human Factor for Regional Airline Pilots

Author: Doug Mikkelsen Title: Fatigue: Investigation of a Human Factor for Regional Airline Pilots Institution: Embry-Riddle Aeronautical University Degree: Master of Aeronautical Science Year: 1998 This study analyzed the causes of regional airline pilot fatigue and the impact on pilot performance. An instrument was developed and refined through a field study validation by a panel of experts. The final instrument was distributed to three groups of regional airline pilots. The data supported the literature review, which revealed many causes of pilot fatigue, including flight crew schedules that are not compatible with human limitations; Federal Aviation Regulations (FARs) that have not evolved with the advancement of aircraft performance and the public demand for 24 hour availability of flights; and poor personal habits. An analysis of the data and literature led to the following conclusions: (a) the existing flight crew schedules and FARs pertaining to flight time limitations and rest requirements are not compatible with human limitations, (b) fatigue has a negative impact on pilot performance, and (c) pilot fatigue has been a contributing factor in many aircraft accidents and incidents.
An Appraisal Analysis of Sina Weibo Texts about Reforms of Undergraduate Education

In recent years, Chinese government departments have created accounts on Sina Weibo, a rising communication platform in China, to spread information related to social issues and interact with the public in an informal way. Reforms of undergraduate education is a heated issue because it is relevant to public interests and can evoke active engagement of the public. Weibo texts about reforms of undergraduate education contain various stances and opinions, so the appraisal meanings in Weibo texts are worth analyzing. This study, adopting the appraisal framework proposed by Martin and White and with the help of corpus method, attempts to investigate the appraisal strategies and underlying meanings in 50 Weibo texts about reforms of undergraduate education quantitively and qualitatively. Hopefully, this study may enrich the research of the appraisal framework on Chinese social media and provide valuable implications for the Chinese government to reconsider the way it interacts with the public in an effective and informal style by leveraging social media platforms like Weibo, so the government can better disseminate information, promote publicity and guide public attitudes towards a positive direction.
Just tell us what you want! Using rubrics to help MBA students become better performance managers Dr. Kathleen Hanold Watland, Saint Xavier University Author's Contact Information

Can the use of rubrics in a Masters of Business Administration class help students become better managers of employee performance? Managing employee performance is central to the role of a manager, yet research indicates that employees and managers struggle with issues related to the management of employee performance. Many of these issues center on the lack of clear communication to employees from managers about performance expectations prior to performance and on not providing the employees with helpful feedback consistent with the articulated performance expectations. In addition, there is growing concern about managers’ reliance on formal performance appraisals as the primary tool to manage employee performance as performance appraisals are often more focused on measuring past performance than encouraging future performance. This paper explores the use of shared and unshared rubrics for Master of Business Administration (MBA) students’ assignments to encourage current, new, or aspiring managers to consider the importance of establishing and sharing detailed performance expectations with their employees prior to performance. MBA students actively seek information on the performance criteria for assignments. They are interested in learning as much as possible about the criteria for assignments and they prefer to have this information prior to completing the assignments. This paper describes how providing rubrics to MBA students and engaging students in discussions that link and illustrate the similarities between students and employees needing clearly articulated performance criteria may help prepare current, new, and aspiring managers to engage in better performance management.
Dynamic panel model in bioeconomy modeling

Currently, technological development is driven by the search for solutions to prevent climate change and environmental degradation, increase energy efficiency, and meet societal needs in relation to avoiding conflict while navigating the implementation of current and future needs. Many of the solutions come from the rapid development of the bioeconomy. The aim of this article is to determine the impact of bioeconomy variables on economic growth in 27 EU countries. The research goal of the paper is based on the estimation of dynamic panel models using the generalized method of moments (GMM). The following set of variables used in the dynamic panel model had a positive impact on economic growth in the EU-27 countries: greenhouse gases by sector: agriculture, circular material use rate, recycling rate of packaging waste by type of packaging – plastic packaging, recycling rate of packaging waste by type of packaging – wooden packaging. Three variables were shown to have a negative impact on economic growth, namely: recycling rate of municipal waste, recycling rate of e-waste, trade-in recyclable raw materials – exports extra-EU.
Evaluating long-term service performance under short-term forecast updates

Managing product availability in a cost-effective way has always been a major challenge faced by inventory managers. We study the problem of a firm selling a perishable product with short-term demand patterns and a long-term service target using the newsvendor framework. The newsvendor determines his long-term order at the first stage, and revises the order according to a short-term forecast update at the second stage. He also evaluates a long-term service target for his overall performance on product availability across all possible forecast updates. We characterise his optimal inventory policy that minimises the expected inventory cost while meeting the long-term service target. Both in-stock rate and fill rate targets are examined.