Miracle-dz/UniFAR-FTUs huggingface dataset:
An Efficient Instruction Fetch Architecture for a RISC-V Soft Processor on an FPGA

To reduce the code size of application programs for RISC-V soft processors on an FPGA, it is desirable for the processor to support the RISC-V compressed instruction extension. In this paper, we implement an efficient instruction fetch unit. We clarify the problem of instruction fetching in pipelining processors that support the extension. To solve the problem of instruction fetching, we propose two instruction fetch units using a decompressed cache and a compressed cache, respectively. We implement the proposed fetch units and evaluate their performance, hardware resources, and operating frequency. Through the evaluation, we show that the proposed unit with a compressed cache is the best and achieves 21.8% better fetch performance using reasonable hardware resources than the baseline architecture.
Optimal Packet Length for Packet Voice Communication

It is shown that for typical operating parameters, the optimal packet length for a single link packet voice system is of the order of 300-700 bits. This is contrary to both the optimal length of a data packet (approximately 1000 bits), and documented experimental implementations of such network architecture for voice (approximately 1000 bits).
A comprehensive Newton-Raphson UPFC model for the quadratic power flow solution of practical power networks

A new and comprehensive load flow model for the unified power flow controller (UPFC) is presented in this paper. The model is incorporated into an existing Newton-Raphson load flow algorithm. Unlike existing UPFC models available in open literature, it can be set to control active and reactive powers and voltage magnitude in any combination or to control none of them. A set of analytical equations has been derived to provide good UPFC initial conditions. Hence, the algorithm exhibits quadratic or near-quadratic convergence characteristics. Suitable guidelines are suggested for an effective control coordination of two or more UPFCs operating in series or parallel arrangements. Test results are presented which demonstrate the effectiveness of the new model.
Influence of Environmental Buildings on UHF Land Mobile Radio Propagation

This paper describes the result of measurements of the correction factor for buildings around a mobile station on UHF land mobile propagation characteristics. In order to express buildings around a mobile station quantitatively, four parameters are proposed: area factor of occupied buildings (\alpha) , extended-area factor of occupied buildings (\alpha) , buildings volume over a sampled area (\beta) and buildings volume over an extended-area (\beta) . The examination was carried out for each parameter in the 400 MHz and the 800 MHz bands. Consequently, it was clear that α was a suitable parameter for buildings around a mobile station, considering the balance of prediction accuracy and the efforts required to calculate a parameter.
Technology acceptance: a meta‐analysis of the TAM: Part 1

Purpose – This paper is the first of two concerned with a meta-analysis of the technology acceptance model (TAM). This part aims to present a narrative literature review of 145 papers published on the TAM. Design/methodology/approach – The approach takes the form of a literature review of 145 papers on the TAM. Findings – The review identifies TAM as a basis for identifying gaps and providing guidelines for implementation of management and the conduct of future research. Originality/value – The paper presents a comprehensive literature review and a rigorous meta-analysis to progress towards a unified view of the TAM.
Enteroparasitosis en niños bajo 5 años de edad, indígenas y no indígenas, de comunidades rurales del Paraguay

Introduccion: Cifras oficiales de mortalidad en ninos bajo 5 anos de edad, en las Americas, refieren que la mayor parte de las defunciones fueron causadas por enfermedades infecciosas incluyendo las parasitarias. Objetivo: Evaluar la frecuencia de enteroparasitosis en poblacion infantil vulnerable, indigenas y no indigenas, y sus caracteristicas socio-ambientales. Pacientes y Metodos: Se evaluaron 247 ninos bajo 5 anos de edad, de ambos sexos. Estudio descriptivo con componente analitico, de corte transverso. Se realizaron examenes copro-parasitologicos y se aplicaron encuestas semi-estructuradas para recoger datos socio-demograficos. Resultados: la frecuencia de enteroparasitosis en los ninos indigenas fue de 56,1% y en los ninos no indigenas de 35,5%. En ambas poblaciones los patogenos mas frecuentes fueron Gardia lamblia y Blastocystis hominis. Conclusion: Encontramos una elevada frecuencia de parasitosis en la poblacion infantil indigena, a expensas de los protozoarios. Los ninos no indigenas siguen portando las mismas especies parasitarias encontradas en estudios anteriores, sugiriendo la necesidad de implementar un mayor control y prevencion. Existen escasos estudios en nuestro pais sobre parasitosis en edades tempranas y no se cuentan con datos en la ninez indigena. Las pobres condiciones en las que viven favorecen el desarrollo de estas enfermedades.
To Prognosticate Survival Applying Scoring System based on Clinical Parameters and Study the Morbidity Pattern of Very Low Birth Weight Inborn Preterm Neonates: A Prospective Observational Study from India

Methods: Hundred and ten VLBW preterm neonates were included.10 morbid conditions were assessed and graded as per morbidity score given by Minde et al. [1]. Neonates were categorized into 5 groups based on cumulative scores (Group A 0-20, B 21-40, C 41-60, D 61-80, E 81-100). All 5 groups were further divided based on total number of serious conditions (None/ 1 / 2 / 3). Final outcome (Discharged/Expired) was compared in each group.
Using the Interactive Whiteboards to Teach Picture Books: The Case of Taiwan.

Since literacy is essential for learning, one of the main purposes of elementary school is to enhance students’ literacy skills. In many countries, it’s quite common to use an interactive whiteboard in class, and Taiwan is no exception. The purpose of this study was to determine the effectiveness of using an interactive whiteboard to teach picture books. A mixed-method approach was used in this study. Interactive whiteboards were used to teach picture books to four classes at an elementary school. A pre- and post-test were used to evaluate the increases in the vocabulary of the students. Furthermore, the four participating teachers were interviewed to determine their views on using an interactive whiteboard to teach picture books. The results indicate that using the interactive whiteboard in the lower grades increases the students’ interest in reading at school and improves their level of literacy. Based on the results, some suggestions are provided for schools.
Dealing with superimposed objects in optical music recognition

Optical music recognition (OMR) involves identifying musical symbols on a scanned sheet of music, and interpreting them so that the music can either be played by the computer, or put into a music editor. Applications include providing an automatic accompaniment, transposing or extracting parts for individual instruments, and performing an automated musicological analysis of the music. A key problem with music recognition, compared with character recognition, is that symbols very often overlap on the page. The most significant form of this problem is that the symbols are superimposed on a five-line staff. Although the staff provides valuable positional information, it creates ambiguity because it is difficult to determine whether a pixel would be black or white if the staff line was not there. The other main difference between music recognition and character recognition is the set of permissible symbols. In text, the alphabet size is fixed. Conversely, in music notation there is no standard "alphabet" of shapes, with composers inventing new notation where necessary, and music for particular instruments using specialised notation where appropriate. The focus of this paper is on techniques we have developed to deal with superimposed objects.
Computational Ocean Acoustics

Senior level/graduate level text/reference presenting state-of-the- art numerical techniques to solve the wave equation in heterogeneous fluid-solid media. Numerical models have become standard research tools in acoustic laboratories, and thus computational acoustics is becoming an increasingly important branch of ocean acoustic science. The first edition of this successful book, written by the recognized leaders of the field, was the first to present a comprehensive and modern introduction to computational ocean acoustics accessible to students. This revision, with 100 additional pages, completely updates the material in the first edition and includes new models based on current research. It includes problems and solutions in every chapter, making the book more useful in teaching (the first edition had a separate solutions manual). The book is intended for graduate and advanced undergraduate students of acoustics, geology and geophysics, applied mathematics, ocean engineering or as a reference in computational methods courses, as well as professionals in these fields, particularly those working in government (especially Navy) and industry labs engaged in the development or use of propagating models.
FLOW SYSTEM FOR ANALYTICAL CALIBRATION BY THE INTEGRATED METHOD

ABSTRACT The flow system has been designed for the purpose of performing analytical determinations according to the integrated calibration method. The system is equipped with a fully rotary valve which serves in preparation of the set of standard solutions from a single stock solution. A standard is exposed to measurements in two forms: by itself, and as a mixture with a sample. Each of the two solutions is able to be propelled to the detector at two different flow rates. As a consequence, the measurement information gathered during a single calibration run permits calculation of several estimations of an analytical result, in both the interpolative and extrapolative manner. Since some estimations are independent of each other, the final result is reliable in terms of accuracy, more than if using a conventional calibration approach. Owing to the instrumental simplicity and analytical efficiency, the system is expected to be useful for routine analysis.
Sequential methods in radar detection

Certain sequential tests of statistical hypotheses known as sequential probability ratio tests (SPRT) possess an optimum property that they can accelerate, on the average, the termination of the test or alternately execute the test in the same time with less error, or with the same error but on less distinguishable hypotheses than a fixed sample-size test. These properties are of practical importance when applied to the radar problem, but in the application of sequential methods to radar surveillance some modification of an SPRT is frequently necessary. In particular, design problems relating to phased array radars are considered. This paper reviews the problem of angle search constraints, existence of multiple resolution elements in range and velocity, possibility of a flexible allocation of pulses, and fluctuations of radar cross sections of targets. Representative numerical results are included to indicate what performance can be expected with the use of sequential methods. An attempt is made to present an integrated theoretical and practical picture. Key references are listed.
Modeling of multiconductor buses and analysis of crosstalk, propagation delay and pulse distortion in high speed GaAs logic circuits

Crosstalk, propagation delay, pulse distortion in multiconductor buses for high-speed GaAs logic circuits are analyzed. A simple but accurate quasi-TEM model of the bus is developed, and a critical analysis is carried out both on the accuracy of different approximate lumped and distributed models and on the impact of such approximations on the time-domain response. Results on the behavior of multiconductor buses in the presence of realistic input waveforms, are presented and design criteria are obtained. >
Analysing Software Metrics for Accurate Dynamic Defect Prediction Models

Defect Prediction Models are widely used in many software products. These estimates help assessing the risks of defect leakage objectively. However, Most of the published Defect prediction models do not necessarily fit in providing estimates for large complex telecom billing solutions. We have tried to analyze the accuracy of the Prediction model based on various software metrics. It is important to understand the relation between different software metrics for accurate software defect prediction. The Telecom Billing solutions have complex applications, configurations, size and parameters. We have tried to correctly identify the Software Metrics that affect the accuracy of the software Defect prediction models. This paper presents an evaluation; software metrics are investigated in order to identify the ones which significantly impact the accuracy of defects prediction models. We found that Historical Defect Density, Removal rates can help in accurate Defect prediction. Data from various projects is collected and analyzed. The prediction of the models, with and without metrics is compared. To access whether the improvements are significant or not, analysis on the accuracy of the Defect prediction is done. It was found that metrics such as Defect Density, Removal rates, trend of absolute number of defects along with Effort for a particular application, significantly affects the accuracy of a Defect prediction tool. Also behavior of one application may or may not be similar to another application. Thus, to have an accurate prediction, we should attempt at avoiding generalization.
High fan-in dynamic CMOS comparators with low transistor count

In this work, we propose several high fan-in dynamic CMOS comparators with low transistor count, high speed and low power. Major features of the proposed comparators are the rearrangement and reordering of transistors in the evaluation block of a dynamic cell. These comparators can be used as equality comparators, mutual comparators and zero/one detectors, which are widely used in built in self test and memory testing. Furthermore, a 64-bit fast dynamic CMOS comparator is implemented using the proposed dynamic comparator. The measured worst delay of the physical chip with pads is 12 ns.
The Role of Technology in Improving Student Learning of Statistics

This paper provides a broad overview of the role technological tools can play in helping students understand and reason about important statistical ideas. We summarize recent developments in the use of technology in teaching statistics in light of changes in course content, pedagogical methods, and instructional formats. Issues and practical challenges in selecting and implementing technological tools are presented discussed, and examples of exemplary tools are provided along with suggestions for their use.
Doing database design with MySQL

Most of the database textbooks, targeting database design and implementation for information systems curricula support the big database systems (Oracle, MS SQL Server, DB/2, etc.). With respect to the most important aspects of the database management: design and implementation; one should not ignore MySQL—the most widely used, open source, relational database management system developed in Sweden in 1995 and now owned by Oracle Corporation. This paper shows two database-design learning cases. The first one deals with a forward-engineering technique used to transform a data model into a physical database. The second case shows how to reverse-engineer an existing database into a data model. Both the cases utilize MySQL Workbench and MySQL Community Server. By contrast Microsoft Access can only reverse engineer a physical database into its relationship diagram.
Analysis of the Competitiveness of Broadband over Power Line Communication in Korea

This study analyzes factors affecting the competitiveness of broadband over power line communication (BPLC) and predicts demand for the service, based on quantitative information about consumer preferences drawn from a survey of Korean consumers. Findings from the estimation suggest that, although consumers value some beneficial features of BPLC, to be competitive the speed and stability of its data transmission needs to be improved. Moreover, on the basis of a market simulation, we expect BPLC to occupy only a small portion of Korea's Internet access market in the future, a finding we expect would hold true for other developed countries whose Internet access markets are already mature.
Moderate Aortic Stenosis in Patients With Heart Failure

Author's summary Moderate aortic stenosis with concomitant heart failure portends a significantly worse prognosis in both preserved and reduced left ventricular ejection fraction. The future trial should examine the efficacy and safety of transcatheter aortic valve replacement in a moderate aortic stenosis population with concurrent heart failure.
Stabilization of wheeled vehicles by hybrid nonlinear time-varying feedback laws

Hybrid feedback control laws are constructed for stabilization of wheeled vehicles consisting of tractors with trailers. The equations of motion are first transformed into a special canonical form, known as the multi-input extended power form. A hybrid stabilization technique developed by Kolmanovsky et al. (1995) is applied to develop the controller structure. These controllers operate by switching at discrete time-instants between various time-periodic feedback functions. Implementation issues are briefly addressed for several wheeled vehicle examples.
Students' Views of Distance Education Provision at One University

Providing university students with distance education is of great importance in the global world. Distance education provides advantages and benefits especially for students who don’t have the chance to meet lecturers from other universities face to face. Distance education connects the learner and teacher to resources that are difficult to access otherwise. It is not necessary to gather students in one classroom at the same time in a distance program. Through distance education facilities students and lecturers can store, update and transfer information very quickly. Furthermore, distance education helps save money in terms of accommodation and travel expenses. This paper describes students’ perceptions and attitudes towards distance education based on their gender, school types attended, age and access to educational technology such as computer and internet. This paper also describes the specific program used by the faculty of Law at Akdeniz University,Turkey.
RESEARCH NOTE A Comparison of Paging and Scrolling for Changing Screen Contents by Inexperienced Users

Paging and scrolling were compared as to their relative suitability for determining which part of a body of information is to be displayed on a screen. Unpracticed subjects performed three different tasks (word reading, line searching, sorting) with both modes of operation. The subjects also rated the suitability of the two modes of operation for each task. Paging was preferred by inexperienced users and it resulted in better performance on the sorting task.
Combining Computing and Reference Desks In An Undergraduate Library: A Brilliant Innovation Or A Serious Mistake?

The Undergraduate Library at the University of Washington combined its reference and computer support desks into one service desk. Librarians are in disagreement on the advantages of this service, and in this article two librarians highlight benefits and drawbacks to the new service. Suggestions for improvement and advice for those considering such a collaboration are included.
Small Group Work and Whole Group Discussion Mediated Through Web Conferencing Software

This paper reports on a case study that explored the benefits and challenges of facilitating group work activities in a synchronous web-conferencing environment for advanced high school students in an undergraduate mathematics course. Results are based on data collected from online student surveys and a content analysis of synchronous online discussions among students during group work and whole group discussion activities. Findings of this study include that, relative to whole group discussions, small group work activities resulted in an increase in the involvement of students, and the comments students made were off-topic, less social-emotional, more academic, and more task-oriented. This case study also confirmed earlier findings that group work in a synchronous environment can facilitate social and cognitive support, foster student satisfaction, and help students share alternate solution pathways and receive individualized feedback. This study has implications for those educators who are involved in distance education programs for high school students, or are considering the use of group work activities in synchronous online environments.
A fast select connection-oriented LLC protocol in CSMA/CD networks

The author presents a new logical link control (LLC) protocol for carrier sense multiple access with collision detection (CSMA/CD) networks called fast select connection-oriented (FS-CO) and evaluates the performance. He develops an approximate analytical model of a network under the slotted nonpersistent CSMA/CD protocol with a priority acknowledgment scheme and the FS-CO-LLC protocol. He also makes a performance comparison of the FS-CO-LLC, a CO LLC, and a connectionless (CL) LLC protocol. The comparison reveals that the FS-CO-LLC always outperforms the CL-LLC and that it performs better than the CO-LLC if the average message length h is not so large compared to the receive-buffer size. It is also found that even with large values of h the performance of the FS-CO-LLC does not degrade much in comparison with the CO-LLC. <<ETX>>