Miracle-dz/UniFAR-FTUs huggingface dataset:
Conversor CC/CC para Aplicação em Instalação Fotovoltaica

UTILIZAÇÃO da tecnologia solar remonta a 1767, inícios do século XVIII, com o cientista suíço Horace de Saussure a construir o primeiro coletor solar do mundo. Este, foi posteriormente usado por Sir John Herschel para cozinhar numa expedição à África do Sul [1]. Porém, o responsável pela primeira célula fotovoltaica foi um inventor Americano, Charles Fritts, que, usando a fotocondutividade do selénio, fabricou a primeira célula em 1883. Contudo foi Albert Einstein que, em 1905, explicou o fenómeno fotoelétrico de conversão de energia solar em energia elétrica, o que lhe valeu o prémio Nobel da Física em 1921. Com o decorrer do tempo várias empresas foram investindo nesta área até que, em 1954, os Laboratórios Bell conceberam o primeiro dispositivo prático de conversão [2].
Holistic Network Defense: Fusing Host and Network Features for Attack Classification

Abstract : This work presents a hybrid network-host monitoring strategy, which fuses data from both the network and the host to recognize malware infections. This work focuses on three categories: Normal, Scanning, and Infected. The network-host sensor fusion is accomplished by extracting 248 features from network traffic using the Fullstats Network Feature generator and from the host using text mining, looking at the frequency of the 500 most common strings and analyzing them as word vectors. Improvements to detection performance are made by synergistically fusing network features obtained from IP packet flows and host features, obtained from text mining port, processor, logon information among others. In addition, the work compares three different machine learning algorithms and updates the script required to obtain network features. Hybrid method results outperformed host only classification by 31.7% and network only classification by 25%. The new approach also reduces the number of alerts while remaining accurate compared with the commercial IDS SNORT. These results make it such that even the most typical users could understand alert classification messages.
Composite materials – modelling, prediction and optimization

Modelling, prediction and optimization of the performance of a composite material versus changes in its formulation and its manufacturing and operation conditions are important and challenging tasks in the framework of developing new composite materials. Owing to the complex synergistic effects of the formulation of a composite material and its manufacturing process on the actual performance of the material, an analytical model relating the basic features of a composite material to its in-service performance is quite difficult to obtain. That is why new computer-based techniques have to be employed in order to create an integrated environment for the modelling and optimization of the behaviour of composite materials under specific operation conditions. In this chapter, some soft computing techniques, such as artificial neural networks and genetic algorithms, as well as other computational methods (FEM, FDM, FVM), are used to model, predict and optimize the effects of the formulation and manufacture of a composite material on its final performance.
Müzik Öğretmenlerinin İlköğretim Müzik Dersi İşleyişine Yönelik Görüşleri

Bu arastirma ile muzik ogretmenlerinin ilkogretim muzik dersi isleyisine yonelik goruslerini betimlemek amaclanmaktadir. Ilkogretim muzik egitimi surecine yonelik dusuncelerin ortaya konulmasi, egitimin temeli olan ilkogretim duzeyinde niteligin arttirilmasi bakimindan onemlidir. 2011- 2012 ogretim yilinda Antalya ili Kepez ilcesindeki Milli Egitim Bakanligi’na bagli ilkogretim okullarinda 62 muzik ogretmeni bulunmaktadir. Arastirmaya bu bolgede gorev yapan 30 muzik ogretmeni katilmistir.Arastirmada serbest mulakat yontemikullanilmis olup; elde edilen verilerin cozumlenmesinde icerik analizi yontemi uygulanmistir.Elde edilen bulgulara gore, muzik ogretmenleri; en son yapilandirilan 2006 muzik ogretim programini kullanisli bulmakla beraber, var olan bazi sorunlar nedeniyle uygulama zorluklari yasadiklarini ifade etmislerdir. Bu sorunlarin basinda, kalabalik siniflar, muzik ders suresi ve fiziki sartlarin yetersiz olmasi gelmektedir
Towards automatic adaptation of resource requirements to actual workload for task-based programming models

Given the considerate amounts of research on task-based parallel programming models for maximizing performance, this project tries to go one step further and investigate mul- tiprogrammed many-core systems. We provide a mathemat- ical model for a parallel runtime that automatically adapts the need for resources to the workload actually produced. The programming model developed is based on other well established models like Cilk++ and Wool.The paper concludes with two conditions that guarantee over-utilization and under-utilization of of the existing work- ers without having to capture eciency metrics periodically.The work presented here is the rst step towards a com- plete framework for the system-wide scheduling and load balancing of multiprogrammed many-core system, assuming a variety of workload types and guaranteeing at least average execution for each running program.
Automated instantiation of software frameworks for control systems

This thesis introduces generic coneepts for design, implementationand instantiation of Soft¬ ware frameworks.The coneepts were successfullyapplied in the controlsystem domain. Control Systemstraditionally rely on conservative Solutions, and are therefore a step back behind the latest and progressive Software engineering developments. Software frameworks can be considered as a representationof successful progressive Software engineering techniques, which are commonly used today forthe rapiddevelopmentofreliable Software applicationsfor a predefined domain. This thesis contributesto the problem of Software framework design, implementationand in¬ stantiation in several respects. First, it provides a design and implementationof a Software framework covering the controlsystemdomain. Second,it evaluatesJava objeet-orientedpro¬ gramming languagefor purposesof real-time programming. A real-time subset of Java was usedfor the framework implementation. Third, it proposesa conceptof automatedframework instantiation process, which can provide the user fully automated code generation. Fourth, it proposesa technique that improves traditional featuremodellingapproachesand provides in¬ stantiation facilities. Finally, it demonstrates the usage ofthenew feature-based modellingand instantiation approach and automated instantiation process on concrete examples. Note that the distinetive characteristic ofthe new instantiation approachesis their simplicityand reliance only on mainstream technologies and tools, which might imply in aeeeptanceof the instantia¬ tion coneepts among Software framework designers and users.
Teaching Maritime English: Writing Glossaries in Educational Purposes

The paper suggests the analysis of what a glossary is and how glossaries can be used in the process of teaching/learning materials development. A glossary is considered to be a form of a dictionary. Its various formats and purposes may be of great help when planning everyday practical language or specialist teachers’ activities including assessment sessions in case if the knowledge of a term and its definition are required. The description is supported by the samples used in work with Marine Engineers.
Study of Training Equipment and Individual Differences: Research on Interactive Relationships Among Learner Characteristics, Types of Learning, Instructional Methods, and Subject Matter Variables

Abstract : The document is the fourth in a series of research projects aimed at determining whether learning might be enhanced by employing instructional methods which differ in design and use as a function of learner characteristics. Based on inference drawn from studies in this series and other research literature, a model was developed enabling the simultaneous examination of the effects of learner characteristics, types of learning, instructional methods, and subject matter variables on achievement. Each of six experimental courses was administered to Navy enlisted men who were previously tested with instruments which yielded a total of 39 measures of aptitude, interest, and personality characteristics. Correlation and regression analyses were made to find any meaningful interactive relationships existing between learner characteristics and types of learning or types of subject matter.
Quests: Design, Theory, and History in Games and Narratives

This unique take on quests, incorporating literary and digital theory, provides an excellent resource for game developers. Focused on both the theory and practice of the four main aspects of quests (spaces, objects, actors, and challenges) each theoretical section is followed by a practical section that contains exercises using the Neverwinter Nights Aurora Toolset. Howard has created a Syllabus, designed for a college-level course, that instructors can use and modify as desired.
A consideration of the lasting effects of a course introducing ethical issues in computing

We discuss the objectives of a course for computer science majors that introduces ethical issues in computing. In particular we are interested – as an exceptional matter – in the long term objectives. We pose and attempt to answer [or at least discuss] the following questions: What effects are we hoping such a course has on its participants five, ten, twenty years down the road? How can our contemplation of these issues inform our pedagogy? How can we design this course so that is has a lasting impact on the students?
Data Gathering Protocol in Wireless Sensor Network Based on Differentiated Service and Data Aggregation

This paper analyzes and compares several typical existing data gathering protocols,and according to the actual application needs,designs a new data gathering protocol of Wireless Sensor Network(WSN)——Differentiated Service and Data Aggregation(DSDA). By constructing an agreement constitutes effective cluster-tree network topology,using differentiated service for the network data flow,and using network data aggregation technology for the data transmission process,DSDA improves the existing data gathering protocols.Simulation results with Matlab show that DSDA can reduce the overall energy dissipated in the network and prolong the network lifetime.
FPGA realization of spectrum sensing based on Bayesian framework for cognitive radio network

In this paper, spectrum sensing is based on Energy detection in the frequency domain with Bayesian criterion. The sensing performance is analyzed using Monte-Carlo methods. In practice, the performance of the single node degrades due to noise effects in the channel such as fading, shadowing, and the receiver uncertainty. So, we have mitigated these effects using cooperative sensing and compare the results with single node. The simulation result discloses that the proposed detection algorithm can detect noisy signals of signal to noise ratio (SNR) up to -21dB using single node, -26dB using five nodes in cooperation at required probability of detection and false alarm probability (Pd  0.9 and Pf  0.1). The single node sensing algorithm is also implemented in Virtex-4 (XC4VSX35-FFG668-10) Field Programmable Gate Array (FPGA).
Modelling the relation between phonetic and phonological encoding in perception: Interactive or autonomous?

Modelling influence and the lack thereof: Autonomy Seperate auditory and phonetic memory (Pisoni 1973, Pisoni & Tash 1974), Serial OT perception grammars (Boersma & Hamann 2007) Both model types appear to predict response time effects on access of lg. knowledge Dual-route models (Fujisaki & Kawashima 1969, 1970) Parallel OT perception grammars? (e.g. Boersma & Hamann 2007) Is this model ‘interactive’?
Op pad van 'n verdeelde na 'n gedeelde toekoms in die Afrikaanse taalgemeenskap: Die rol van die Afrikaanse Taalraad in die proses van versoening 1

Gesprekke oor die “toekoms van Afrikaans” in Afrikaanse publikasies is nie vreemd nie. So dikwels neem dit egter ’n wroegende, verbitterde en verwytende toon aan. In hierdie artikel kom die toekoms van Afrikaans ook ter sprake, maar wel vanuit ’n ander hoek, naamlik hoe die taal se toekoms verseker kan word deur die inklusiewe Afrikaanse gemeenskap hierby te betrek. In watter mate die Afrikaanse Taalraad (ATR) hierdie rol kan vervul, en die werk wat hierdie liggaam sedert 2003 gedoen het, word hier bespreek. Die belang van versoening in die Afrikaanse taalgemeenskap word oorkoepelend bespreek en toegelig aan die hand van gebeure die afgelope nege jaar. Daar bestaan nog steeds groot afstande tussen sprekers van die Afrikaanse taalgemeenskap wat deur versoening oorbrug sal moet word. Versoening gebeur nie net sommer so nie; dit is ’n proses wat bewustelik bestuur moet word. Dit verg ook toewyding van die betrokkenes om dit te laat slaag en seker te maak dat dit deurgevoer word. Dit is ook nie ’n gegewe nie, maar word bepaal deur die herstel van die verhoudinge tussen die sprekers (wit, bruin en swart) van Afrikaans. Apartheid het ’n groot seer gelaat, maar die gewilligheid van die Afrikaanse taalgemeenskap om aktief by die proses van versoening en heelmaking betrokke te raak is die voorvereiste vir wat bereik moet word. Riglyne vir versoening word ook aangegee en dit blyk daaruit dat veral die menslike kant hier van belang is, omdat versoening tussen mense moet gebeur – tussen individue, maar ook in groepsverband. Die skrywer se gevolgtrekking is dat die Afrikaanse taalgemeenskap in die belang van sy eie voortbestaan nie ’n ander keuse het as om onderling te versoen nie. Eers dan kan saam ’n toekoms gebou word.
High Capacity Steganographic Method

This paper proposes a high capacity data hiding method using modulus function of pixel-value differencing (PVD) and least significant bit (LSB) replacement method. Many novel data hiding methods based on LSB and PVD methods were presented to enlarge hiding capacity and provide an imperceptible quality. A small difference value for two consecutive pixels is belonged to a smooth area and a large difference one is located on an edge area. In our proposed method, the secret data are hidden on the smooth area by the LSB substitution method and PVD method on the edge area. From the experimental results, the proposed method sustains a higher capacity and still a good quality compared with other LSB and modified PVD methods.
Control of Finite-State, Finite Memory Stochastic Systems

A generalized problem of stochastic control is discussed in which multiple controllers with different data bases are present. The vehicle for the investigation is the finite state, finite memory (FSFM) stochastic control problem. Optimality conditions are obtained by deriving an equivalent deterministic optimal control problem. A FSFM minimum principle is obtained via the equivalent deterministic problem. The minimum principle suggests the development of a numerical optimization algorithm, the min-H algorithm. The relationship between the sufficiency of the minimum principle and the informational properties of the problem are investigated. A problem of hypothesis testing with 1-bit memory is investigated to illustrate the application of control theoretic techniques to information processing problems.
Early-stage french as a foreign language in Taiwan : a case study involving L2 oral proficiency, motivation and social presence in synchronous computer mediated communication (CMC)

II ACKNOWLEDGEMENTS III DECLARATION OF ORIGINALITY IV 1.1 Research motivation 9 1.2 Foreign language learning in Taiwan 10 1.2.1 Background 10 1.2.2 French in Taiwan 11 1.2.3 Specific context description 12 1.2. 4 Problems of the specific context 13 1.3 Statement of the research topic 13 1.4 Structure of the study 14 CHAPTER 2. LITERATURE REVIEW 16 2.1 Language proficiency development in CMC 16 2.1.1 CMC 16 2.1.2 CMC and second language acquisition 17 2.1.2.1 Synchronous text-based CMC 20 2.1.2.2 Synchronous voice-based CMC 23 2.1.2.3 Web 2.0 27 2.1.3 Second language acquisition (SLA) 29 2.1.3.1 Task-based approach 30 2.1.3.2 Cycle of tasks: pre/main/post task activities 33 2.1.3.3 Feedback 39 2.1.3.4 Group/Pair work 43 2.1.3.5 L1 use 47 2.1.3.6 Authenticity 50 2.1.3.7 Assessment 52 2.1.3.8 Task-based language teaching versus CMC 56 2.2 Affective variables in SLA 60
Aspectos de avaliação de desempenho em redes ponto a ponto e ponto multiponto baseados em modelagem Markoviana e medições

This thesis presents a methodology for performance evaluation of broadband access networks. The performance evaluation of networks is a way to identify and analyze how certain features, such as different traffic types or forms of use, can influence the behavior of the network in focus. This way, we can predict how the network will behave in future situations. The methodology is composed of two approaches: an approach based on measurements and the other based on modeling using Markov processes. The networks analyzed cover the two basic types of access architecture: ADSL2+ (asymmetric digital subscriber line 2+) networks, which are wired networks that use twisted pair cables; FBWN (fixed broadband wireless network) networks, which are wireless networks based on IEEE 802.16 standard. The measurement approach is focused on network behaves against three situations: transmission of a generic traffic, impact of non-stationary noise in the system, and using network for the transmission of real-time multimedia traffic. The modeling approach, in its turn, is based on predicting the behavior of the network using mathematical models based on Markov processes. The results presented indicate the feasibility of applying this methodology as form of performance evaluation. The results also make possible the extension of this methodology to other types of broadband access networks such as fiber optic networks, microwave links, and VDSL/VDSL2 (Very-high-data-rate DSL)
Causal reasoning and intentionality judgments after focal brain lesions.

This study investigated the impact of focal brain lesions on causal reasoning about everyday events that led to adverse outcomes. Participants with focal lesions involving frontal and posterior brain regions and matched healthy control participants were compared in their causal inference judgments about intentional human actions, unintentional human actions and physical events. Compared to the control group, those with frontal lesions, especially to right-sided ventromedial and lateral regions, differentiated less between intentional and unintentional acts. Imaging studies have implicated ventromedial frontal regions in the processing of social and emotional material, while lateral frontal regions have been linked to abstract reasoning and executive control. Difficulties in both social/emotional processing and in abstract reasoning and executive control may impair sensitivity to intentionality when making causal inferences.
Représentation compacte des sacs de mots pour l'indexation d'images

La representation des images par descripteurs locaux est invariante a de nombreuses transformations. Une de ses principales limitations est la quantite de memoire requise pour decrire chaque image. Une representation de type sac de mots est ainsi limitee a quelques millions d'images pour un serveur raisonnablement equipe. Dans cet article, nous etudions la possibilite de compresser et indexer conjointement les representations sacs de mots, et introduisons une methode de recherche approximative sur ce type de vecteurs creux. La comparaison entre deux images consiste a calculer une esperance de distance de Hamming entre leur representations. Nos experiences montrent que l'approche proposee requiert dix a cent fois moins de memoire que la representation initiale et ameliore l'efficacite de la recherche, tout en offrant une qualite de recherche comparable.
1500 Archers on a 28.8: Network Programming in Age of Empires and Beyond

The Genie Engine was already running and the game simulation was shaping up into a compelling experience in single player. The Genie Engine is a 2D singlethreaded (game loop) engine. Sprites are rendered in 256 colors in a tile-based world. Randomly-generated maps were filled with thousands of objects, from trees that could be chopped down to leaping gazelles. The rough breakdown (post optimization) of processing tasks for the engine was: 30% graphic rendering, 30% AI and Pathing, and 30% running the simulation & maintenance.
Software Developers' Attitudes toward User-Centered Design.

The concepts of usability and user-centered design (UCD) have grown in popularity over the past 20 years as measured by the number of research and mainstream articles devoted to their discussion. As with all new developments, however, there are always the questions of how things work in practice compared to theory. A survey of 83 software developers, mostly in smallto medium-sized companies in variety of industries was conducted to examine software developers' views on UCD and usability practices and to illuminate how current practices relate to theory. Results of a descriptive analysis of the 22 Likert-scale attitude question items suggested that respondents had moderately positive attitudes towards UCD activities and discipline. The Likert-scale items were subsequently factor-analyzed and the results suggested that the respondents tended to agree that UCD is worth the effort and cost. They also tended to agree that it is important to conduct many use test sessions and they learned a lot about their products from user test sessions. Software developers who reported that their companies followed important UCD practices were more likely to agree with the view that UCD is worth the effort and cost. Those who have attended usability test sessions were more likely to agree that user test sessions are valuable, and that UCD is worth the effort and cost. However, those who have attended usability test sessions also were more likely to agree that UCD is more work and costs more than conventional development activities. Also, significantly more good usability practices were reported by software developers who worked on teams that either hired usability consultants or had a usability specialist on their teams compared with those who had no usability specialists at all. While software developers held positive attitudes towards UCD, it was notable that they did not report that their companies used practices that are central to UCD. It appears that, while many software developers agree that UCD is a good idea, it tends not to be implemented fully in practice. (Contains 18 references.) (Author/AEF) Reproductions supplied by EDRS are the best that can be made from the original document.