Miracle-dz/UniFAR-FTUs huggingface dataset:
Novel modular fault tolerant switched reluctance machine for reliable factory automation systems

Electrical machines and drives used in diverse critical fields like advanced factory automation systems, automotive and aerospace applications, military, energy and medical equipment, etc.) require both special motor and converter topologies to achieve high level fault tolerance. In the paper a novel modular fault tolerant switched reluctance machine is proposed. Its stator is built up of simply to manufacture and to replace modules. The machine is able to have continuous operation despite winding faults of diverse severity. It is fed by a special power converter having separate half H-bridge leg for each coil. Thus a complex and high reliable electrical system is obtained. By advanced dynamic co-simulations (using a coupled Flux 2D and Simulink® program) the behaviour of the drive system under five winding fault conditions are studied. The obtained results prove the fault tolerant capacity of the proposed machine.
The road to the information and knowledge society : indigenous knowledge and the Millennium Development Goals

Benefiting from the process of globalisation and becoming an information and knowledge society has become the vision of many governments throughout the world. However, becoming such a society is much easier for developed countries as they already possess some of the prerequisite criteria to be classified as an information and knowledge society. These criteria include a stable economy, an efficient physical infrastructure, and an effective ICT infrastructure, to mention a few (Britz 2006; Holmner 2008). As many of the criteria of an information and knowledge society coincide with the eight Millennium Development Goals (MDGs), it is much easier and faster for these developed countries to achieve these goals and benefit from the global economy. For developing countries that are still experiencing a digital divide, these goals seem nearly unattainable. As the deadline for achieving the MDGs is only five years away, it has become imperative for developing countries to investigate other roads and possibilities to assist them in progressing towards attaining these goals at an increased speed. Utilising indigenous knowledge is one of these roads that developing countries are making use of to reach this destination.
On the interrelationships between natural mortality, growth parameters, and mean environmental temperature in 175 fish stocks

A compilation of values for the exponential coefficient of natural mortality (M) is given for 175 different stocks of fish distributed in 84 species, hath freshwater and marine, and ranging from polar to tropical waters. Values of Loo(LT, em), W",,(g, fresh weight), K (l/year) and T (ec, mean annual water temperature) were attributed to each value of M, and the 175 sets of values plotted such that:
An FPGA implementation of the SURF algorithm for the ExoMars programme

Achieving highly accurate feature extraction in a short period of time is very important for space applications based on computer vision algorithms, such as with the ExoMars programme of ESA. The paper describes a HW/SW co-design scheme using FPGAs to speed-up the SURF algorithm when executed on a low computational power CPU. It performs algorithmic analysis and restructures the SURF steps leading to efficient hardware implementation, while at the same time it exploits the advantages of the CPU. The HW architecture is implemented on a Xilinx Virtex 6 FPGA achieving real-time performance with low hardware cost and highly accurate results.
TDD: a technology dependent decomposition algorithm for LUT-based FPGAs

A major drawback of the previous algorithms that perform decomposition and covering for LUT-based FPGA technology mapping is the lack of a fast, and reasonably accurate evaluation scheme for the decomposition phase. In this paper, we will show how a fast covering algorithm can be used as an evaluation engine for the decomposition phase. We show that decomposition has a significant impact on the quality of the final mapping result. More specifically, we show that starting from the same circuit topology, a blind decomposition leads to mapping results that use an average of 70 to 150% more LUTs compared to the results obtained using a technology driven decomposition algorithm. A technology driven decomposition algorithm is developed based on the proposed idea. Experiments on a number of MCNC benchmark circuits show an average of 12% to 72% improvement on the number of LUTs compared to the previously reported results.
CLARM routing: cross layer adhoc-routing based on reputation management in wireless multi-hop networks

This paper presents a framework of wireless multi-hop networks exploiting an ad hoc routing protocol working on the layer 2.5, called CLARM (Cross Layer Adhoc-routing based on Reputation Management) routing protocol. The framework of CLARM routing protocol incorporates following three things: a new concept of wireless multi-hop network architecture, a new 2.5-layer routing technique with a reputation management scheme, high throughput network performance based on cross-layer approache between MAC (Medium Access Control) and CLARM layers. We compare the performance of the CLARM routing protocol with previous routing algorithms, DSR (Dynamic Source Routing) and AODV (Ad hoc On demand Distance Vector), previous reputation management scheme CORE (COllaborative REputation) and CONFIDANT (COoperation Of Nodes Fairness In Dynamic Ad Hoc NeTworks). A case study on practical experiments and simulations shows that the CLARM routing protocol yields better performance in terms of low rate of packet loss and high throughput network performance.
Ensemble LUT classification for degraded document enhancement

The fast evolution of scanning and computing technologies have led to the creation of large collections of scanned paper documents. Examples of such collections include historical collections, legal depositories, medical archives, and business archives. Moreover, in many situations such as legal litigation and security investigations scanned collections are being used to facilitate systematic exploration of the data. It is almost always the case that scanned documents suffer from some form of degradation. Large degradations make documents hard to read and substantially deteriorate the performance of automated document processing systems. Enhancement of degraded document images is normally performed assuming global degradation models. When the degradation is large, global degradation models do not perform well. In contrast, we propose to estimate local degradation models and use them in enhancing degraded document images. Using a semi-automated enhancement system we have labeled a subset of the Frieder diaries collection.1 This labeled subset was then used to train an ensemble classifier. The component classifiers are based on lookup tables (LUT) in conjunction with the approximated nearest neighbor algorithm. The resulting algorithm is highly effcient. Experimental evaluation results are provided using the Frieder diaries collection.1
The measurement method of 2D distribution of EMI in the on-chip power distribution network

The two-dimension distribution of EMI in the on-chip power distribution network provides valuable information for understanding the immunity behavior of the integrated circuit. This paper presents an EMI sensor array to measure the distribution. The sensor generates periodical noise on the supply. The spectrum of generated noise is considered as the feedback signal. The power distribution network of the host integrated circuit is utilized as the propagation channel of the feedback signal. The innovation of this distribution measurement method are the following: No extra pin is required to generate any control signal or to detect the feedback signal; No modification is made on the host power distribution network; The sensor can be easily realized with standard cells. The design of sensor array is implemented with Global Foundry 180nm process. The proposed sensor array method is verified by both transistor-level simulation and hardware experiment.
Financial Shocks and the Cyclical Behavior of Skilled and Unskilled Unemployment

We study the effect of financial shocks in labor market dynamics. We build a model with two types of labor, two types of capital and both search and financial frictions. We find that financial shocks, modeled as exogenous disturbances to the borrowing constraint of firms, can generate realistic movements in aggregate employment and reproduce the volatile and countercyclical ratio of skilled to unskilled employment observed in the data. Tighter financial conditions impact employment through three channels: i) a fall in the marginal product of labor as a result of a reduction in aggregate capital, ii) an increase in the shadow cost of labor in terms of external financing and iii) an endogenous wage rigidity caused by a short-lived increase in households' consumption and in their marginal value of time. This endogenous wage rigidity together with the model’s calibration implying a higher re-hiring probability and lower recruitment costs for unskilled workers, explains the volatility of relative employment.
Performance study of reliable server pooling

The reliable server pooling allows redundant information sources to be viewed as a single transport endpoint, and therefore is able to provide persistent connections and balanced traffic. The IETF RSerPool Working Group has proposed an architecture to implement the reliable server pooling. We conducted a number of simulation experiments with the current definitions of the RSerPool protocols to quantify their performance in both wired and wireless environments. The simulation results show that the RSerPool works well in fixed and relatively reliable environments, but its performance worsens rapidly as the networks become more unreliable or mobile. The issues we identified in wireless mobile ad-hoc networks include network partitioning, high signaling overhead, and excessive aggressiveness in handling failures. These problems are partly due to the heavy reliance of the RSerPool architecture on the reliability of the underlying network,, which is unlikely to be guaranteed in a wireless mobile ad-hoc environment.
Fuzzy Semantic Retrieval for Traffic Information Based on Fuzzy Ontology and RDF on the Semantic Web

Normal 0 7.8 磅 0 2 false false false MicrosoftInternetExplorer4 Information retrieval is the essential task for Traffic Information Service System in Intelligent Transportation Systems (ITS). There a lot of fuzzy traffic information derived from human factor. To achieve fuzzy semantic retrieval, this paper proposes an approach using Resource Description Framework (RDF) and fuzzy ontology. First, we apply RDF data model to represent traffic information on the Semantic Web. Then we present fuzzy linguistic variable ontology models and its formal representation with RDF. Introducing new data type referred as fuzzy linguistic variables to RDF data model, the semantic query expansions in SeRQL query language are constructed by order relation, equivalence relation, inclusion relation and complement relation between fuzzy concepts defined in linguistic variable ontologies. Examples show that the extended query can return all results which satisfy research requirement at semantic level without upgrading current main search algorithm, and this research facilitates the semantic retrieval of traffic information through fuzzy concepts for ITS on the Semantic Web.
Spot Anthracnose Disease Caused by Colletotrichum gloeosporioides on Tulip Tree in Korea

The tulip tree (Liriodendron chinense) has been widely cultivated in Korea as a street or garden tree for its large flowers, which have a superficial resemblance to tulips. Occurrence of anthracnose disease on the leaves of tulip trees growing on the campus of Gyeongsang National University, Jinju, Korea, has been observed. Based on mycological characteristics, pathogenicity, and internal transcribed spacer sequence, the causal fungus was identified as Colletotrichum gloeosporioides. This is the first report on anthracnose disease caused by C. gloeosporioides on tulip trees in Korea.
Equivalent but not the Same: Teaching and Learning in Full Semester and Condensed Summer Courses

Abstract Research on teaching and learning in condensed-course formats is varied and difficult to generalize. We analyze this research and identify factors that may account for the varied findings. Additionally, we present a mixed methodology study of 20 matched-pair courses (i.e., full and condensed formats) from 11 disciplines which examines student learning and student and faculty perception data. We find that faculty and students perceive condensed courses as more effective, but that student learning varies depending upon the measures used to assess it. We conclude by considering the implications of our study for teaching and assessment practices.
Exploring College Readiness: Self-Perceptions of Early College Students

EXPLORING COLLEGE READINESS: SELF-PERCEPTIONS OF EARLY COLLEGE STUDENTS by Kim R. Ramsey-White Research shows that too many students are graduating from high school illprepared to be successful in the postsecondary environment. This study examined the high school experiences of dual-enrollment students who participated in an Early College High School, and how the students perceived their high school experiences in preparing them for college. Additionally the study sought to understand the role that social capital played in the students’ preparation for college. In-depth interviews with 13 African American students, some of whom were first-generation college attendees, were used to illuminate the student voice in an effort to learn how early college practices and strategies were beneficial and/or detrimental to their preparation for college. Data from the study were analyzed using a college readiness framework developed by David Conley (2007) which focuses on four dimensions of college readiness: (1) Key cognitive strategies, (2) academic content, (3) academic skills and behavior, and (4) contextual skills and awareness. Findings from the study indicate that the students’ Early College High School experiences increased their confidence as college students (key cognitive strategies), taught them the benefits of time management and working in study groups (academic skills and behavior), and provided meaningful relationships and social networks that allowed them to navigate the college application and financial aid processes (contextual skills and awareness). The students also expressed concern that there was very limited alignment between the high school academic courses and expectations and those in the postsecondary institutions they attended. The results of the study contribute to the scholarship on the Early College model. EXPLORING COLLEGE READINESS: SELF-PERCEPTIONS OF EARLY COLLEGE STUDENTS by Kim R. Ramsey-White
Global solutions of viscous transonic flows in Kerr geometry — I. Weak viscosity limit

We present fully general relativistic equations governing viscous transonic flows in vertical equilibrium in Kerr geometry. We find the complete set of global solutions (both for Optically thick and optically thin flows) in the weak viscosity limit. We show that for a large region of parameter space, centrifugal pressure supported standing shocks can form in accretion and winds very close to the black hole horizon, both for co-rotating and contra-rotating flows. We compute the nature of the shear tensor for complete transonic solutions and discuss the consequences of its reversal properties.
From story comprehension to the neurobiology of language

ABSTRACT Traditionally, language processing has been studied in tightly controlled experimental designs. However, in addition to raising questions about the generalisability of results to natural language use, these designs impose limitations on the types of research questions that can be examined. Accordingly, an increasing number of groups are now exploring new methodological approaches for studying language in rich contextual settings. This special issue aims to deliver an overview of the possibilities that are opened up by the use of context and naturalistic experimental designs. These include the ability to examine various – and hitherto understudied – populations, or linguistic phenomena on different levels (e.g. word, sentence, discourse) in the same naturalistic stimulus such as a story. Other special issue contributions focus on addressing the methodological challenges inherent to naturalistic experiments. Additionally, we stress the importance of interdisciplinary work and open sharing of data from naturalistic experiments in the neurobiology of language.
The Access and Welfare Impacts of Telecommunications Technology in Peru

This paper attempts to assess three main issues on Peruvian telecommunications technology: what are the main variables that explain the demand for access to telephone services; how important is access to telephone services in explaining the transition out of poverty, and what are the consumption and welfare impacts of the significant increase in the supply of telephone lines since the divestiture in 1994 of the Peruvian telephone services. To accomplish our goal we will use two methodologies. Firstly, we will concentrate on residential telephony based on a countrywide representative consumer expenditure survey (The World Bank's Living Standards Measurement Survey). With this household survey the demand for access to telephone services was modeled and the effects of access to a telephone on poverty was analyzed. The main result showed that access to a telephone is important in explaining why low income households do not drop into poverty, but that it is not significant in explaining the transition between poor and non-poor status. Additionally, the presence of these surveys for 1985, 91, 94 and 1997, allowed us to estimate the welfare impacts at different socioeconomic levels of the various institutional changes in telephone services before and after privatization. The second methodology takes advantage of a panel of households for Metropolitan Lima allowing us to estimate partial demand equations of access to telephone services in order to evaluate consumers' welfare pre and post divestiture showing the presence of an important positive consumer surplus of access to a residential telephone. Both methodologies measured how welfare gains coming from more people having access to telephone lines might have compensated for higher usage rates as the result of privatization. The main objective of these methodologies is therefore to assess which types of households, classified according to their observable characteristics, bear a greater portion of the burden or enjoy most of the benefits of the changes brought about by privatization.
On the analysis and design of secure multimedia authentication scheme

In this paper, a novel concept "authentication set" is used to analyze the security of the authentication schemes in detail. Several novel concepts on the authentication set are defined, which are called "cover authentication set", "attack authentication set", "watermark-based authentication set" or "signature-based authentication set", "verified authentication set" and "malicious-attack authentication set". According to the relation among the aforementioned sets, the security of the authentication schemes is exploited. Furthermore, a conclusion is drawn according to the analysis result. At the same time the principle that guides the design of the more secure authentication schemes is presented. Finally, as an example, a novel authentication design method based on multi-feature watermarks is proposed according to the design principle. The experimental results prove the validity of the design method and the significance of the guide principle.
Agro-industrial residues and starch for growth and co-production of polyhydroxyalkanoate copolymer and α-amylase by Bacillus sp. CFR-67

Polyhydroxyalkanoates (PHA) and α-amylase (α-1,4 glucan-4-glucanohydrolase, E.C. 3.2.1.1) were co-produced by Bacillus sp. CFR-67 using unhydrolysed corn starch as a substrate. Bacterial growth and polymer production were enhanced with the supplementation of hydrolysates of wheat bran (WBH) or rice bran (RBH) individually or in combination (5–20 g L-1, based on weight of soluble substrates-SS). In batch cultivation, a mixture of WBH and RBH (1:1, 10 g L-1 of SS) along with ammonium acetate (1.75 g L-1) and corn starch (30 g L-1) produced maximum quantity of biomass (10 g L-1) and PHA (5.9 g L-1). The polymer thus produced was a copolymer of polyhydroxybutyrate-co-hydroxyvalerate of 95:5 to 90:10 mol%. Presence of WBH and corn starch (10–50 g L-1) in the medium enhanced fermentative yield of α-amylase (2–40 U mL-1 min-1). The enzyme was active in a wide range of pH (4–9) and temperature (40–60°C). This is the first report on simultaneous production of copolymer of bacterial PHA and α-amylase from unhydrolysed corn starch and agro-industrial residues as substrates.
Automatic generation of multi-testing types test cases using requirements-based testing

During the last decade many researchers have concentrated more on applying the requirements-based testing by considering the usage of several UML models to generate test cases. Test cases being ready at an early stage of the development life cyle save so much time and cost. This paper proposes an automated model for generating multi-testing types test cases using activity diagrams. Activity Diagrams are one of the most famed UML diagrams used in modeling both business and operational workflows using stepwise activities and actions. Moreover, they put into consideration choices, iterations, concurrency as well as relationships among objects making them suitable for generating concrete test cases. Cyclomatic complexity metric is applied to check the generated test paths' coverage before the category partitioning method is applied to generate the final test cases suite. The generated test cases are suitable for multi-testing types. The proposed model is evaluated quantitatively and qualitatively against closely related work. The proposed model saves search space, time and effort. Besides, it improves the performance of the testing process.
Dissection of Arabidopsis ADP-RIBOSYLATION FACTOR 1 Function in Epidermal Cell Polarityw⃞

Vesicle trafficking is essential for the generation of asymmetries, which are central to multicellular development. Core components of the vesicle transport machinery, such as ADP-ribosylation factor (ARF) GTPases, have been studied primarily at the single-cell level. Here, we analyze developmental functions of the ARF1 subclass of the Arabidopsis thaliana multigene ARF family. Six virtually identical ARF1 genes are ubiquitously expressed, and single loss-of-function mutants in these genes reveal no obvious developmental phenotypes. Fluorescence colocalization studies reveal that ARF1 is localized to the Golgi apparatus and endocytic organelles in both onion (Allium cepa) and Arabidopsis cells. Apical-basal polarity of epidermal cells, reflected by the position of root hair outgrowth, is affected when ARF1 mutants are expressed at early stages of cell differentiation but after they exit mitosis. Genetic interactions during root hair tip growth and localization suggest that the ROP2 protein is a target of ARF1 action, but its localization is slowly affected upon ARF1 manipulation when compared with that of Golgi and endocytic markers. Localization of a second potential target of ARF1 action, PIN2, is also affected with slow kinetics. Although extreme redundancy precludes conventional genetic dissection of ARF1 functions, our approach separates different ARF1 downstream networks involved in local and specific aspects of cell polarity.