Miracle-dz/UniFAR-FTUs huggingface dataset:
Harmonic current extraction of shunt active power filter based on prediction current technique - Hysteresis PWM

Due to the wide spread of power electronics equipment in modern electrical systems, the increase of the harmonics disturbance in the ac mains currents has became a major concern due to the adverse effects on all analysis and simulation using MATLAB-SIMULINK of a three-phase shunt active equipment. This paper presents the Shunt Active Power Filter (SAPF) to compensate the generated harmonics by 3-phase Rectifier Bridge fed R-L load. The harmonic current extraction is based on prediction current extraction technique -hysteresis PWM generation pattern.
Italian Lira classification by LVQ

In this paper, a new method to classify the Italian Liras by using the learning vector quantization (LVQ) is proposed. The Italian Liras of 8 kinds, 1000, 2000, 5000, 10000, 50000 (new), 50000 (old), 100000 (new), 100000 (old) Liras with four directions A,B,C, and D are used, where A and B mean the normal direction and the upside down direction and C and D mean the reverse version of A and B. The original image with 128 by 64 pixels is observed at the transaction machine in which rotation and shift are included. After correction of these effects, we select a suitable area which shows the bill image and feed the image with 64 by 15 pixels to a neural network. Although the neural network of the LVQ type can process in any order of the dimension of the input data, the smaller size is better to achieve a faster convergence.
Co-channel interference cancellation techniques for antenna array assisted multiuser OFDM systems

Minimum mean square error (MMSE)-based multiple-antenna assisted co-channel interference suppression/space division multiple access (SDMA) schemes designed for OFDM have drawn wide interest. In this article, parallel interference cancellation (PIC) is proposed and studied in comparison to maximum likelihood sequence estimation (MLSE) based schemes. The best design trade-off was constituted by the successive interference cancellation (SIC) schemes.
Content-Enhanced Matrix Factorization for Recommender Systems

Recommender systems are widely employed in many fields to recommend products, services and information to potential customers. As the most successful approach to recommender systems, collaborative filtering (CF) predicts user preferences in item selection based on the known user ratings of items. It can be divided into two main braches - the neighbourhood approach (NB) and latent factor models. Some of the most successful realizations of latent factor models are based on matrix factorization (MF). Accuracy is one of the most important measurement criteria for recommender systems. In this paper, to improve accuracy, we propose an improved MF model. In this model, we not only consider the latent factors describing the user and item, but also incorporate content information directly into MF.Experiments are performed on the Movielens dataset to compare the present approach with the other method. The experiment results indicate that the proposed approach can remarkably improve the recommendation quality.
Efficient Compilation of Array Statements for Private Memory Multicomputers

One of the core constructs of High Performance Fortran (HPF) is the array-slice assignment statement, combined with the rich choice of data distribution options available to the programmer. On a private memory multicomputer, the HPF compiler writer faces the difficult task of automatically generating the necessary communication for assignment statements involving arrays with arbitrary block-cyclic data distributions. In this paper we present a framework for representing array slices and block-cyclic distributions, and we derive efficient algorithms for sending and receiving the necessary data for array-slice assignment statements. The algorithms include a memory-efficient method of managing the layout of the distributed arrays in each processor''s local memory. We also provide a means of converting the user''s TEMPLATE, ALIGN, and DISTRIBUTE statements into a convenient ''array ownership descriptor''. In addition, we present several optimizations for common distributions and easily-recognized communication patterns. The work presented makes minimal assumptions regarding the processor architecture, the communication architecture, or the underlying language being compiled.
Automatic Specialization of Protocol Stacks in OS kernels

Fast and optimized protocol stacks play a major role in the performance of network services. This role is especially important in embedded class systems, where performance metrics such as data throughput tend to be limited by the CPU. It is common on such systems, to have protocol stacks that are optimized by hand for better performance and smaller code footprint. In this paper, we propose a strategy to automate this process. Our approach uses program specialization, and enables applications using the network to request specialized code based on the current usage scenario. The specialized code is generated dynamically and loaded in the kernel to be used by the application. We have successfully applied our approach to the TCP/IP implementation in the Linux kernel and used the optimized protocol stack in existing applications. These applications were minimally modied to request the specialization of code based on the current usage context, and to use the specialized code generated instead of its generic version. Specialization can be performed locally, or deferred to a remote specialization server using a novel mechanism [1]. Experiments conducted on three platforms show that the specialized code runs about 25% faster and its size reduces by up to 20 times. The throughput of the protocol stack improves by up to 21%.
A new knowledge-based risk control method for risk sensitive devices

Medical engineering is always closely linked to the well-being of the human. This close relation can strike out at two directions: although medical devices are intentionally designed to support diagnosis and therapy, they can also cause serious adverse events and harm patients, users and third parties. Therefore, according to ISO 14971, risk management – including risk identification, risk evaluation, risk control and market surveillance – is an important and inevitable chapter in medical device development. Unfortunately, the risk control process, which implies selection and application of countermeasures (generally through inherent, protective or descriptive safety measures), is not yet supported systematically and methodically. Therefore the Chair of Medical Engineering at the RWTH Aachen University has developed a methodological approach to generate appropriate countermeasures for given risks, helping to mitigate previously identified technical and human-induced errors or hazards in products and processes. The methodology uses a knowledge-base, reorganizing prior experience, from by now fourteen risk analyses of medical systems, comprising research and industrial risk assessments. Case-tailored categories from error-taxonomies allow the user to hark back to his antecessors’ knowledge in a user-friendly manner. The methods’ basic structure is built on the Theory of Inventive Problem Solving (TRIZ) and can be fed with further data in the future. Purely technical and system-inherent, as well as Human-Machine-Interaction errors, have been organized in thirteen error categories, filing 61 individual failure modes, which represent the former (root) causes and failures from the analyzed risk analysis data base. The different possible combinations of cause and failure are displayed
New medium voltage drive systems using three-level neutral point clamped inverter with high voltage IGBT

This paper presents a new range of medium voltage motor drives with a three-level neutral point clamped inverter using high-voltage IGBTs. Different line side converters are available, including a twelve pulse diode rectifier and an active front end converter in the same configuration as the inverter. Innovative features of the drive include series-connection of high-voltage IGBTs and a novel isolated voltage and current sensing system. The motor control is based on field-oriented vector control and an optimized PWM modulator, so that switching losses and current harmonics are minimized. The combination of the three-level neutral point clamped inverter, with motor insulation taking inverter operation into account, results in an efficiency optimized (filterless) drive system.
Efficient resolution of security-sensitive values in Android using abstract interpretation

In this thesis I present a design for an efficient and sound abstract interpretation-based Value Analysis which calculates field values of security-relevant Android API class instances. The analysis is an important component of DroidSafe, an Android malware detection system designed to prove important properties of sensitive program behaviors before the programs appear in an application marketplace. The resolved program values provide important context for other DroidSafe analyses and the generated application summary, improving their precision. This in turn helps a trusted analyst avoid false positives and determine whether a particular application is malicious in a shorter amount of time. Thesis Supervisor: Martin C. Rinard Title: Professor of Computer Science, MIT Computer Science and Artificial Intelligence Laboratory
Time-Frequency Signal Analysis and Processing: A Comprehensive Reference

Time Frequency Signal Analysis and Processing covers fundamental concepts, principles and techniques, treatment of specialised and advanced topics, methods and applications, including results of recent research. This book deals with the modern methodologies, key techniques and concepts that form the core of new technologies used in IT, multimedia, telecommunications as well as most fields of engineering, science and technology. It focuses on advanced techniques and methods that allow a refined extraction and processing of information, allowing efficient and effective decision making that would not be possible with classical techniques.
Adaptive /spl beta/-order MMSE speech enhancement application for mobile communication in a car environment

This paper considers the use of adaptive /spl beta/-order minimum mean square error (MMSE) speech enhancement algorithm for hands-free mobile communication in a car environment. For system simulation, we use recordings of real-life noises to contaminate speech signals chosen from the TIMIT database. In terms of subjective and objective evaluation, our proposed algorithm achieves better enhancement results as compared to many existing speech enhancement algorithms.
Microstrip Antennas, Broadband

With <1% in bandwidth, the first microstrip patch antenna has limited applications, mainly for defense purposes. With tremendous effort dedicated to the bandwidth enhancement of microstrip antennas, they are now becoming the most popular antennas selected for modern wireless communications. This article collects different approaches for enhancing the bandwidth of microstrip antennas, including the stacked-patch, U-slot patch, and L-probe coupling techniques. Emphasis is placed on the L-probe technique, which is demonstrated to be attractive for the development of wideband dual-polarized patch antennas, and wideband miniature patch antennas for state-of-the-art mobile communications. Throughout the article, design guidelines and principles of operation for most of the designs are highlighted. Keywords: microstrip antenna; wideband antenna; dual–polarized patch antenna; miniature antenna; L-probe coupling technique
Secondary Science Teachers, the Internet, and Curriculum Development: A Community of Explorers

The Community of Explorers Project studied how secondary-school science teachers applied desk-top access to Internet resources in their science curricula. During the project, high school teachers and students engaged in scientific problem solving using advanced network technology and innovative pedagogy. One of the lessons that the project offers is that a professional community involves adaptation to options and constraints encountered through interaction in everyday work settings. An initial research expectation was that the teachers would quickly adopt e-mail as an efficient means of communicating and collaborating with their colleagues. However, the use of e-mail for collaborative curriculum development did not follow expectations. The project resulted in the development of a different type of community than initially envisaged. While neither the researchers nor the teacher-participants could precisely control the nature of the community, their respective forms of participation distributed information useful for influencing the community's form and function. Analysis of CoE e-mail in the context of ethnographic research points out the important effects of organizational and occupational cultures on the application of technology in classrooms as well as on the development of a professional community oriented toward designing innovative curriculum.
A reference grammar of Paiwan

This thesis is a grammatical description of North Paiwan, spoken in Santimen and Saichia townships in Pingtung County, Taiwan. This language is predicate-initial. Order of the arguments is flexible, as there is a preceding case marker indicating their syntactic role. Paiwan has fairly rich morphology. Like most Formosan languages, it has four morphologically marked voices: Actor Voice (AV), Goal Voice (GV), Instrument Voice (IV) and Locative Voice (LV). GV, IV and LV can be grouped under the heading of Non-actor Voice (NAV). Topicality is the main factor determining choice among voice constructions. Although the alignment of argument case marking is seemingly consistent with ergativity, morphologically Paiwan is neither ergative nor accusative because neither AV Clauses nor NA V clauses are attested to be more basic. It is thus better classes as a morphologically symmetrical language. Syntactically it is not entirely a symmetrical language. Paiwan AV verbs may be transitive because an oblique argument may also bear some properties of core arguments. However, NAV verbs are more transitive than AV verbs. Syntactically, Paiwan resembles Tagalog, standing somewhere between ergativity and symmetricality. This thesis consists of fifteen chapters. Chapter 1 introduces the language, its speakers and the areas where they live. Chapter 2 describes the phonetics and phonology. Chapter 3 deals with reduplication and some morphophonemic processes. An overview of Paiwan main clause structures, including verbal clauses and nonverbal clauses, is provided in Chapter 4. Chapter 5 treats major and minor word classes. Paiwan major word classes include verbs, nouns and adjectives. Chapter 6 xxv XXVl deals with the derivation of complex stems. Chapter 7 analyses the structure of the noun phrase. Chapter 8 treats verbs and verbal predicates. Verbal focus morphology and valence-changing morphology, including causatives, anticausatives, reflexives and reciprocals, are described, as are verbal auxiliaries. Chapter 9 introduces verb serialization. Chapter 10 describes interrogative and imperative clauses. Chapter 11 introduces some complex constructions, discourse connectors and inferential markers. Chapter 12 describes relative clauses. Chapter 13 deals with complement clauses. Argument raising in a tu complement clause is examined. The pragmatic function of the Paiwan voice system is discussed in Chapter 14. Chapter 15 examines the syntax of the Pai wan voice system.
Towards Ubiquitous Government: The Case of Finland

This article outlines the concept of u-government. The objective is to analyze the key aspects of u-government development policy. The empirical section starts with a brief description of examples of u-government initiatives in different parts of the world. The last section of the article focuses on u-government initiatives and services in the Finnish public sector, which are used to exemplify the present state of development of u-government in the Nordic countries.
Routing Protocols for Wireless Sensor Networks

—Wireless Sensor Network is one of the emerging technologies. The recent advances and the convergence of micro electro-mechanical systems technology, integrated circuit technologies, microprocessor hardware and nano Technology, Wireless communications, Ad-hoc networking routing protocols, distributed signal processing, and embedded systems have made the concept of Wireless Sensor Networks (WSNs)[1]. In Wireless sensor network, sensor nodes are used for gathering data and transmitting to sink but sensor nodes has limited energy and communication ability. So, it is important to design a routing protocol for WSNs[2]. In this paper we have demonstrated on different types of routing protocol such as Flat protocol, Hierarchical Protocol, Location based Protocol which are mainly used for consumption of more energy as to increase the network life time.
Response Times: Their Role in Inferring Elementary Mental Organization

1. Representing Response Times as Random Variables PART I: DETECTION PARADIGMS 2. Simple Reaction Times: Basic Data 3. Decomposition into Decision and Residual Latencies 4. Distributions of Simple Decision Latencies 5. Detection of Signals Presented at Irregular Times PART II: IDENTIFICATION PARADIGMS 6. Two-Choice Reaction Times: Basic Ideas and Data 7. Mixture Models 8. Stochastic Accumulation of Information in Discrete Time 9. Stochastic Accumulation of Information in Continuous Time 10. Absolute Identification of More than Two Signals PART III: MATCHING PARADIGMS 11. Memory, Scanning, Visual Search, and Same-Difference Designs 12. Processing Stages and Strategies
SEARCH ENGINES ON THE WORLD WIDE WEB AND INFORMATION RETRIEVAL FROM THE INTERNET: A REVIEW AND EVALUATION

The World Wide Web's search engines are the main tools for indexing and retrieval of Internet resources today. Comparison and evaluation of their performance is of great importance for system developers and information professionals, as well as end‐users, for the improvement and development of better tools. The paper describes categories and special features of Web‐based databases and compares them with traditional databases. It then presents a review of the literature on the testing and evaluation of Web‐based search engines. Different methodologies and measures used in previous studies are described and their findings are summarised. The paper presents some evaluative comments on previous studies and suggests areas for future investigation, particularly evaluation of Web‐based search engines from the end‐user's perspective.
An Accurate Collision Detection Method for Cable Simulation

In this paper, we present a fast and robust collision detection (CD) and resolution scheme for deformable cable using a new method based on the shortest distance of cable segment axis. We employ a bounding sphere hierarchy (BVH) by exploiting the topology of cable for reducing the collision detection query space. After searching the collision through the bounding sphere hierarchy, the collision detection algorithm will find the two segments which are close enough to require an exact collision check. Furthermore, the exact collision state is decided by our proposed method. Penalty force method is applied to the collision resolution. The comparative experiments show that the proposed method performs more accurate than existing algorithms for deformable cable simulation without substantial computational cost.
Situated information literacy: history instruction at a high school early college

Purpose – This study aims to explore the question “how would professors teach information literacy to prepare high school students for college? ” by observing two history professors at a high school early college during routine classroom instruction. Design/methodology/approach – The research took a case study approach to studying information literacy instruction, drawing from multiple data types but relying primarily on classroom observations and teaching artifacts. Findings – This research found that subjects taught information literacy by situating students as legitimate peripheral participants in the discipline of history. They did so as part of the daily fabric of classroom instruction, using pedagogical techniques such as dialogical reading, spending time with texts, writing to think and thinking historically. Research limitations/implications – This research focuses on history instruction. Future studies could include additional disciplines and directly examine the impact of teaching practices on st.
Supervisory control of a class of hybrid dynamic systems

This paper presents a framework for modeling and synthesis of a class of hybrid dynamic systems. The architecture includes a hybrid plant model, a hybrid controller, a pattern recognizer and a supervisor. The architecture is divided into two layers. The lower layer is a hybrid dynamic system. At the upper layer, the supervisor issues and receives symbolic commands through a pattern recognizer. The supervisor views the lower layer as a forcible discrete event system, which is implemented by modifying the framework of Ramadge-Wonham. The pattern recognizer interprets the output of the plant as an event of the discrete event system. The task of the supervisor is to make decisions on what kind of actions to be taken. The concepts of controllability and observability of a hybrid dynamic system are introduced, which guarantee the existence problems of a hybrid controller and a supervisor. <<ETX>>
A FPGA-Based Method for License Plate Localization

—As a significant stage in an Automatic Number Plate recognition (ANPR) system, License plate localization (LPL) is often computationally expensive. A novel LPL algorithm using morphological operations is proposed in the paper. The algorithm has the property of low complexity and high detection rate. The algorithm has been proved to successfully implement and using the Mentor Graphics RC240 FPGA board equipped with a 4M Gates Xilinx Virtex-4 LX40 and a database of 2000 image. Results show that the proposed method achieves 98.4% detection rate within 2.7ms at the expense of only 2% of the available area in the FPGA.
Encrypted Storage and Its Retrieval in Cloud Storage Applications

The problem of data security impedes the spread and application of cloud computing.While corporate and personal data can be protected through data encryption,effective retrieval of encrypted data is difficult to achieve by traditional means.This paper analyzes storage security technology in cloud storage and also the demands of encrypted storage(using common methods of encryption and related technologies). In light of research results,this paper proposes a retrieval method based on fully homomorphic encryption—which can markedly improve efficiency.
'What works' : interventions for children and young people with speech, language and communication needs - technical annex

This research report was commissioned before the new UK Government took office on 11 May 2010. As a result the content may not reflect current Government policy and may make reference to the Department for Children, Schools and Families (DCSF) which has now been replaced by the Department for Education (DfE). The views expressed in this report are the authors' and do not necessarily reflect those of the Department for Education. Report presents the reviews of Interventions for children with speech, language and communication needs.