bluuebunny/crossref_metadata_2025_split huggingface dataset:
Correlation Analysis between Grounding Resistance and Diurnal Variations of Upper Soil Resistivity during March 2010 in Balozhi, Latvia
Authors: Kizhlo Marina , Kanbergs Arvids , Kizhlo Mihails 
Published: January 2011

Correlation Analysis between Grounding Resistance and Diurnal Variations of Upper Soil Resistivity during March 2010 in Balozhi, LatviaThe accurate measurement of soil resistivity and grounding system resistance is fundamental to electrical safety. However, geological and meteorological factors can have a considerable effect on the accuracy of conventional measurements and the validity of the measurement methods. This paper examines some aspects of grounding measurements and grounding system performance in the context of both geological and meteorological effects.We are reporting the results of grounding measurements using the 3-point method with ground resistivity tester type M416. The measurements were conducted during selected period from 2010 March 1 to March 31 in Balozhi, Latvia. We also noted that the resistivity of the upper layer significantly varied from a point to another, reflecting difference in water content in the upper soil layer due to local topography and other parameters.
Electrical Measuring Techniques — Expectations for Increasing Accuracy
Authors: Matiss Imants , Purvinsh Andris 
Published: January 2011

Electrical Measuring Techniques — Expectations for Increasing AccuracyMulti parameter testing by Calibrated Disturbing Factors (CDF) methodology may present interest as more sophisticated mean for increasing metrological qualities of electrical testing techniques. Detailed analysis of a set of validation parameters, such as thickness and dielectric permeability of plates, demonstrates advantage of this approach in comparison with single parameter tests.
A PLL Scheme for Synchronization with Grid Voltage Phasor in Active Power Filter Systems
Authors: Krievs Oskars , Steiks Ingars , Ribickis Leonids 
Published: January 2011

A PLL Scheme for Synchronization with Grid Voltage Phasor in Active Power Filter SystemsVoltage source inverters connected to the grid in applications such as active power filters require synchronization with the grid voltage. Since in practice the grid voltage can be unbalanced and distorted, but the operation of the whole active filter control system is strongly dependant on precise estimation of grid voltage phase, the fundamental positive sequence phasor of the grid voltage has to be extracted. In this paper a system for smooth estimation of the position of the voltage phasor at the point of common coupling of a parallel active filter system is presented using a sinusoidal signal integrator and a simple software PLL. The performance of the proposed system is verified by simulation and experimental results. The proposed PLL scheme can also be used in other vector oriented control systems.
Matrix Converter Bi-directional Switch Power Loss and Cooling Condition Estimation for Integrated Drives
Authors: Sokolovs Alvis , Galkin Ilya 
Published: January 2011

Matrix Converter Bi-directional Switch Power Loss and Cooling Condition Estimation for Integrated DrivesIn this paper power loss estimation of bi-directional switch of matrix converter is done by means of calculation and experiments. For safe operation of power devices an efficient cooling system of specific device must be designed. This work is part of a greater project of integrated matrix converter AC drives and the cooling problem here is viewed in context of this task. It is necessary to develop a compact power board and cooling system to extract excessive heat from power devices.
Troubleshooting of Matrix Frequency Converter Conducted and Radiated Emissions
Authors: Asmanis Gundars , Ribickis Leonids , Novikovs Vladimirs 
Published: January 2011

Troubleshooting of Matrix Frequency Converter Conducted and Radiated EmissionsMatrix converter inherently exhibits sinusoidal input current waveforms and has less stressful output voltage waveforms, but it is causing problems with conducted and radiated emissions. This paper deals with matrix converter emitted disturbances from point of view of electromagnetic compatibility (EMC) standard EN61800-3 and allocates the sources of undesirable emissions using standard equipment used for EMC assessment according to variety international EMC standards and discusses methodology of troubleshooting flow, using low cost equipment available in almost every laboratory of Industrial Electronics and Electrical Engineering.
Application of Astatic State Observers in Electromechanotronic Modules
Authors: Gnezdov Nikolay , Kolganov Aleksey , Lebedev Sergey 
Published: January 2011

Application of Astatic State Observers in Electromechanotronic ModulesThe authors offer a synthesis method of state observers with high-order astatism. There are no errors caused by the action of arbitrary external disturbances in reduced variables of such observers. The observers also restore the instantaneous values of disturbances. The authors present a calculation method of ultimate realizable dynamics of observers during their realization in microprocessor control system which calculates in numbers with fixed point without overflowing of variables. The description of experimental installation and software is given.
Algorithm for Public Electric Transport Schedule Control for Intelligent Embedded Devices
Authors: Alps Ivars , Potapov Andrey , Gorobetz Mikhail , Levchenkov Anatoly 
Published: January 2011

Algorithm for Public Electric Transport Schedule Control for Intelligent Embedded DevicesIn this paper authors present heuristics algorithm for precise schedule fulfilment in city traffic conditions taking in account traffic lights. The algorithm is proposed for programmable controller. PLC is proposed to be installed in electric vehicle to control its motion speed and signals of traffic lights. Algorithm is tested using real controller connected to virtual devices and real functional models of real tram devices. Results of experiments show high precision of public transport schedule fulfilment using proposed algorithm.
Climate Change: Uncertainty for Hydropower Development in Nepal
Authors: Pathak Mahesh 
Published: January 2011

There is a worldwide consensus that climate change is a real, rapidly advancing and widespread threat facing this century. This is a crucial issue in Himalayan and special in Nepal because of its possible impact on water resource, biodiversity, and consequence on economic growth of the region. The increase trend of glacial retreat and variability on temperature and participation has the direct impact on the water resource and hydropower development. Mountain regions are particularly vulnerable, both because warming trends are higher and the impacts are magnifed by the extreme changes in altitude over small distances. It indicates the great variability of hydro-climatic variability in major rivers and their tributaries. Decrease runoff will have direct impact on the hydropower development, but there is uncertainty about the role of spatial variability of changing climatic scenarios and their possible impact for hydropower development in large and middle rivers. This paper presents the scenarios of climate change in Nepal in terms of hydro-climatic variability. The frst part describes hydro-climatic variability and its uncertainty for hydropower development, and the second part deals with the mitigation of uncertainties. Key words: Climate change; Deglaciation; GLOF; Water resource; Hydrological cycle; Hydropower; Himalayas; NepalDOI: 10.3126/hn.v6i0.4190 Hydro Nepal Vol 6, January 2010 Page : 31-34 Uploaded Date: 24 January, 2011
Frontispiece Architecture in Ngayogyakarta : Notes on Structure and Sources
Authors: Behrend Tim 
Published: January 2011

Tim Behrend, University of Auckland, Nouvelle-Zélande
Frontispiece Architecture in Ngayogyakarta : Notes on Structure and Sources
Cet article considère le manuscrit javanais comme un objet codicologique. Il explore les diverses raisons pour lesquelles il est à la fois unique et relié aux produits d'autres traditions scripturaires en Asie du Sud-Est et au Moyen-Orient, en envisageant notamment les transformations radicales survenues avec l'islamisation. À travers un aperçu des aspects visuels et physiques de l'enluminure des manuscrits javanais (en particulier les frontispices, ou wadana) et une description minutieuse d'un manuscrit de 1829 créé par le fondateur du palais Pakualaman, cet article offre un modèle de traitement de la complexité formelle des manuscrits javanais ; il propose également une taxonomie de la description des wadana.
Kalu Muhammad Hilali, Sultan of the Maldives (1491-1528)
Authors: Dos Santos Alves Jorge 
Published: January 2011

Jorge M. dos Santos Alves, Instituto de Investigaçào Cientifica Tropical/Fundaçâo para a Ciência e Tecnologia, Lisbonne
Kalu Muhammad Hilali, Sultan of the Maldives (1491-1528)
Sultan Kalu Muhammad fit la transition entre les deux siècles extraordinaires que furent les XVe et XVIe siècles, non seulement pour l'histoire des Maldives, mais pour celle de tout l'océan Indien. Cet article s'attache à réviser l'image historique de ce sultan, tout en la situant par rapport à l'histoire politique et socio-économique du sultanat des Maldives et de ses liaisons avec les réseaux maritimes asiatiques. D'une certaine façon, on peut dire que, pendant plus de trente ans, sultan Kalu Muhamad joua le jeu de la survivance politique.
L'halieutique maldivienne, une ethno-culture millénaire
Authors: Doumenge François 
Published: January 2011

François Doumenge, Musée Océanographique de Monaco, Commission Internationale pour l'Exploration Scientifique de la Mer Méditerranée L'halieutique maldivienne, une ethno-culture millénaire
As early as the 10th century Arab navigators identified the Maldive Islands as a source of cowries as currency and coir as an indispensable material for the assembling of sewn hulls and rigs of fishing and commercial vessels. Later on, skipjack filets, once dried and smoked, provided the third specialty of these islands. The meeting of monsoon navigation networks brought the Maldive Archipelago in contact with the whole of Arab, Persian, Indian and Malay worlds. The shores of East Africa and South China could be reached from there too. The dynamics of the piscatorial ethno-culture, which flourished in a way of life entirely dominated by the sea, lay in the exclusive control of the barter system by the central power established in Male. In the cultural, political, and commercial sway of Salafi Sunnism, the Maldive Islands fully developed their potentialities, which flourished during the 15th century, and they were able to resist the Portuguese intrusions of the following century. Stranded there in the early years of the 17th century, Pyrard de Laval wrote an account of his stay and gave minute descriptions of lagoon and pelagic fishing techniques, related industries, and economic and commercial practices.
This socio-economy, unique because of its coherence based on marine life, was dismanteled in the 19 th century by the force of colonial imperialisms (demonetisation of the cowries, loss of political and commercial independence) and the constraints caused by the mutations of the industrial revolution (diversion followed by disappearance of the large sailing ships, industrialisation of the coir). The Maldive Islands had lived for one millenium by following a unique piscatorial way of life, associating a perfected art of navigation with the exhaustive exploitation of the sole resource of the islands, the coconut tree, and of the infinite variety of products of coral reef and nearby ocean.
Le rêve des jeunes filles portugaises du milieu du XIXe siècle : devenir « reine des Maldives »
Authors: Dos Santos Alves Jorge 
Published: January 2011

Jorge M. dos Santos Alves, Instituto de Investigaçâo Cientffica Tropical/Fundaçào para a
Ciência e Tecnologia, Lisbonne
Le rêve des jeunes filles portugaises du milieu du XIXe siècle : devenir « reine des Maldives »
Popular memory in the Porto region, in the North of Portugal, has recorded the story of a young Portuguese girl who, in the 16th century, while staying in India, eventually married a "king" of the Maldives islands, thus becoming "queen of the Maldives". The success of this story led the famous writer Camilo Castelo Branco (1825-1890) to try for the first time, in his Cenas Inocentes da Comédia Humana (Innocent Scenes of the Human Comedy, 1st edition, Lisbon, 1863) to elucidate the "queen of the Maldives" mystery. This article endeavours to establish the historical events at the basis of this story, even though its most remarkable feature is none other than its longevity and its survival in popular memory as well as in literature.
Improvement in Visual Acuity Following Surgery for Correction of Head Posture in Infantile Nystagmus Syndrome
Authors: Kumar Anand , Shetty Shashikant , Vijayalakshmi P. , Hertle Richard W. 
Published: January 2011

Purpose:
To report the effect of the abnormal head posture (AHP) correcting procedures on the visual acuity improvement in patients with infantile nystagmus syndrome (INS) and the visual acuity improvement outcomes in different AHP correcting surgeries in INS.

Methods:
This was a prospective, non-randomized, interventional study. Twenty-eight patients underwent the Anderson–Kestenbaum procedure or the modified Anderson procedure with or without tenotomy of at least one horizontal recti for correction of AHP. Best-corrected binocular null zone acuity and degree of AHP was recorded preoperatively and compared with those done 1 month postoperatively.

Results:

The average null zone logarithm of the minimum angle of resolution acuity was 0.42 preoperatively, which improved significantly to 0.33 postoperatively (
P
= .002). The AHP ranged from 10° to 40° (mean: 20.89°), which improved significantly to a mean of 3.21° (
P
= .000). No significant difference (
P
= .65) was found in the visual acuity improvement among patients who underwent the Anderson–Kestenbaum procedure or the modified Anderson procedure with or without tenotomy. No significant difference in the visual acuity improvement was seen in patients who underwent tenotomy of at least one horizontal rectus muscle along with the modified Anderson procedure compared to those who underwent the modified Anderson procedure alone (
P
= .28).

Conclusion:
The procedures used mainly for correction of AHP in INS do yield significant improvement in the visual acuity. This improvement is seen in patients undergoing surgery for both horizontal and vertical AHP.
Practical issues in the development of TTS and SR for the Sinhala language
Authors: Wickramasinghe RIP , Kumara KH , Dias NGJ 
Published: January 2011

In this study, discussed some issues that are arising in the development of Text-to-Speech (TTS) and Speech Recognition (SR) systems for the Sinhala language are discussed. There are numerous benefits of TTS and SR to Sinhala community. In the context of Sinhala language, the Natural Language Processing (NLP) technologies are in the primary stage in comparison with other languages such as English, French, German, Japanese etc. Since current TTS and SR development environments are far from being language independent, the existing systems cannot be adopted directly to the Sinhala language. This contribution outlines problematic areas that come across in the development of TTS and SR systems for Sinhala language. While discussing those problems, some of the possible solution strategies for both TTS and SR development have been formulated. Keywords: Text-to-Speech; Speech Recognition; Sinhala Language; Natural Language Processing. DOI: 10.4038/josuk.v3i0.2739J. Sci. Univ. Kelaniya 3 (2007) : 63-72
Conceptual Aspects of Large Meta-Analyses with Publicly Available Microarray Data: A case study in Oncology
Authors: Schmidberger Markus , Lennert Sabine , Mansmann Ulrich 
Published: January 2011

Large public repositories of microarray experiments offer an abundance of biological data. It is of interest to use and to combine the available material to create new biological information and to develop a broader view on biological phenomena. Meta-analyses recombine similar information over a series of experiments to sketch scientific aspects which were not accessible by each of the single experiments. Meta-analysis of high-throughput experiments has to handle methodological as well as technical challenges. Methodological aspects concern the identification of homogeneous material which can be combined by appropriate statistical procedures. Technical challenges come from the data management of large amounts of high-dimensional data, long computation time, as well as the handling of the stored phenotype data. This paper compares in a meta-analysis of a large series of microarray experiments the interaction structure within selected pathways between different tumour entities. The feasibility of such a study is explored and a technical as well as a statistical framework for its completion is presented. Multiple obstacles were met during completion of this project. They are mainly related to the quality of the available data and influence the biological interpretation of the results derived. The sobering experience of our study asks for combined efforts to improve the data quality in public repositories of high-throughput data. The exploration of the available data in large meta-analyses is limited by incomplete documentation of essential aspects of experiments and studies, by technical deficiencies in the data stored, and by careless duplications of data.
Nursing educator professional’s satisfaction: a review of the literature
Authors: Ferreira Elaine Maria , Friedländer Maria Romana 
Published: January 2011

RESUMOAtravés desta revisão de literatura, reunimos conhecimentos existentes acerca da satisfação profissional e identificamos uma ampla diversidade teórica e conceitual, bem como a escassez de estudos que contemplem a satisfação profissional do enfermeiro educador. Esta revisão permitiu a percepção clara da necessidade da realização de pesquisas que identifiquem o estado de satisfação profissional, variáveis envolvidas e suas relações com a influência da trajetória da formação e do estágio de desenvolvimento profissional do enfermeiro professor de Enfermagem. Palavras-chave: Enfermagem; Satisfação no Emprego; Docente de Enfermagem.ABSTRACTBy means of a review in the literature we gathered the existing knowledge about professional satisfaction and we identified a vast theoretical and conceptual variety as well as lack of studies, which could look at the nurse educator’s satisfaction. This review allowed a clear perception of the need to carry out researches, which could identify the professional’s satisfaction status, the involved variables and their relationships with the influence of the formation trajectory and the stage of professional development of the nursing professor nurse. Keywords: Nursing; Job satisfaction; Nursing Professor.RESUMENAtraves de la revisión de la literatura, reunimos conocimientos existentes acerca de la satisfacción profesional e identificamos una amplia diversidad teórica y conceptual, bien como la escasez de estudios que contemplen la satisfacción profesional del enfermero educador. Esta revisión permitió la percepción clara de la necesidad de la realización de pesquisas que identifiquen el estado de satisfacción profesional, variables envueltas y sus relaciones con la influencia de la trayectoria de la formación y de prácticas de desarrollo profesional del enfermero profesor de Enfermería. Palabras clave: Enfermería; Satisfacción en el Empleo; Docente en Enfermería.
Patients with psychiatric disorders from a Psychosocial Attention Center
Authors: Cavalcanti Ana Márcia Tenório de Souza , Santos Cândida Maria Rodrigues dos , De Araújo Ednaldo Cavalcante , Santos Antônia Maria da Silva , Silva Elaine Lima da , Lamas Marcela Cavalcanti 
Published: January 2011

RESUMOEstudo exploratório e descritivo realizado em um Centro de Atenção Psicossocial (CAPS transtorno) da cidade de Recife, com o objetivo de identificar a prevalência de usuários deste serviço que relataram história de maus tratos sofridos durante a infância e/ou adolescência. A população foi composta por 702 usuários de um CAPS transtorno adstrito no Distrito Sanitário III, com a amostra constituída por 375 indivíduos, que realizaram tratamento no respectivo serviço psiquiátrico nos anos de 2003 a 2005. Os resultados evidenciaram uma prevalência de 14,66% de casos de maus tratos durante esta época da vida, nos quais se relacionou pelo menos um dos itens pesquisados, quais sejam casos de violência física, emocional, negligência, abuso sexual, além de combinações variadas desses tipos de violência. Palavras-chave: Violência doméstica; Infância; Adolescente; Transtornos psiquiátricosABSTRACTExploratory and descriptive study in a quantitative approach, conducted through in a Psychosocial Attention Center for individuals in Psychiatric suffering (CAPS disorders), in the Recife city, state of Pernambuco, aiming at identifying, among the users, those who referred stories of maltreatment during their infancy and/or adolescence. The population was 702 users from one CAPS, from the city’s Sanitary District III, and the sample consisted of 375 individuals, that had been through treatment in the respective psychiatric service from 2003 to 2005. The results showed the maltreatment cases prevalence of 14,66% during childhood and adolescence, relating at least one of items searched, which are cases of physical, emotional violence, recklessness, sexual abuse, and combinations of these types of violence. Keywords: Domestic violence; Child; Adolescent; Psychiatric disordersRESUMENEstudio exploratorio y descriptivo, con enfoque cuantitativo, conducido en un Centro de Atención Psicosocial para los individuos en el sufrimiento psiquiátrico (CAPS desórdenes), en la ciudad de Recife, estado de Pernambuco, teniendo como objetivo identificar, entre los usuarios, los que refirieron historias del maltrato durante su infancia y/o adolescencia. La población era 702 usuarios de uno CAPS, del Districto Sanitario III, y la muestra consistió en 375 individuos, que habían estado con el tratamiento en el respectivo servicio psiquiátrico, a partir de 2003 a 2005. Los resultados demostraron el predominio de los casos del maltrato de 14.66% durante niñez y adolescencia, relacionando por lo menos uno de los artículos buscados, que son casos de la violencia física, emocional, de negligencias, de abuso sexual, y de las combinaciones de estos tipos de violencia. Palabras clave: Violencia doméstica; Niño; Adolescente; Desórdenes psiquiátricos.