bluuebunny/crossref_metadata_2025 huggingface dataset:
OPTIMALIZATION OF AFTERBURNER CHANNEL IN BIOMASS BOILER USING CFD ANALYSIS
Authors: Pospíšil Jiří , Lisý Martin , Špiláček Michal
Published: November 2016

This contribution presents the results of parametrical studies focused on the mixing process in a small rectangular duct within a biomass boiler. The first study investigates the influence of a local narrowing located in the central part of the duct. This narrowing works as an orifice with very simple rectangular geometry. Four different free cross sections of the orifice were considered in the center of the duct, namely 100%, 70%, 50%, 30% of free cross section area in the duct. The second study is focused on the investigation of the influence of secondary air distribution pipe diameter on the mixing process in a flue gas duct without a narrowing.
A QUANTITATIVE EVALUATION OF THE WATER DISTRIBUTION IN A SOIL SAMPLE USING NEUTRON IMAGING
Authors: Šácha Jan , Sněhota Michal , Hovind Jan
Published: November 2016

This paper presents an empirical method by Kang et al. recently proposed for correcting two-dimensional neutron radiography for water quantification in soil. The method was tested on data from neutron imaging of the water infiltration in a soil sample. The raw data were affected by neutron scattering and by beam hardening artefacts. Two strategies for identifying the correction parameters are proposed in this paper. The method has been further developed for the case of three-dimensional neutron tomography. In a related experiment, neutron imaging is used to record ponded-infiltration experiments in two artificial soil samples. Radiograms, i.e., two-dimensional projections of the sample, were acquired during infiltration. A calculation was made of the amount of water and its distribution within the radiograms, in the form of two-dimensional water thickness maps. Tomograms were reconstructed from the corrected and uncorrected water thickness maps to obtain the 3D spatial distribution of the water content within the sample. Without the correction, the beam hardening and the scattering effects overestimated the water content values close to the perimeter of the sample, and at the same time underestimated the values close to the centre of the sample. The total water content of the entire sample was the same in both cases. The empirical correction method presented in this study is a relatively accurate, rapid and simple way to obtain the quantitatively determined water content from two-dimensional and three-dimensional neutron images. However, an independent method for measuring the total water volume in the sample is needed in order to identify the correction parameters.
Representações sobre ensino de espanhol como língua estrangeira: entre a possibilidade e a contingência
Authors: Carvalho Fernanda Peçanha
Published: November 2016

O artigo versa sobre as representações dos sujeitos-professores de espanhol como língua estrangeira (E/LE) de Belo Horizonte e região metropolitana sobre o ensino de espanhol e seus efeitos de sentido na constituição subjetiva do professor. A pesquisa ancora-se na Análise de Discurso franco-brasileira que parte dos estudos pecheutianos em interface com a psicanálise lacaniana. Em nosso percurso metodológico empregamos como dispositivo de análise dos fatos linguísticos de nosso corpus a interpretação (ORLANDI, 2012), as ressonâncias discursivas (SERRANI-INFANTE, 1998), as noções de intra e interdiscurso (PÊCHEUX, 1974), algumas modalidades da heterogeneidade enunciativa (AUTHIER-REVUZ, 1998, 2004) e noções tomadas da psicanálise. Através dos gestos de interpretação depreendemos significantes que configuram o ensino de E/LE nos circuitos da contingência e da possibilidade.
Sujeitos surdos e discurso: a construção identitária e as relações de ensino
Authors: Guerra Vania Maria Lescano , Silva Eliana Francisca Alves da
Published: November 2016

Esta pesquisa tem como objetivo estudar, a partir de uma perspectiva discursiva da linguagem (CORACINI, 2005 e 2007; MASCIA E SILVA JÚNIOR, 2009; FOUCAULT, 1985), as interferências da LIBRAS na marcação de tempo e em outros aspectos da gramática da Língua Portuguesa mediante análise de mensagens de surdos via inbox pela rede social Facebook. tendo em vista a especificidade da língua em questão. Também problematizar os discursos presentes na sociedade a respeito da língua em questão como do sujeito surdo numa sociedade que caminha em busca de melhor atender a necessidade das pessoas com deficiência.  Assim, para um estudo sobre os enunciados da LIBRAS transcritos para a língua portuguesa - LP - na modalidade escrita por sujeitos surdos, analisamos os  aspectos linguísticos da Língua Brasileira dos Sinais - LIBRAS, a estrutura dos sinais que dão forma aos discursos dos surdos e qual a relação entre esses dois sistemas linguísticos totalmente diferentes, a Língua de Sinais - LS e a LP, no processo de ensino aprendizagem desses sujeitos. Para este estudo, partimos das discussões a respeito da importância da LIBRAS no processo de ensino aprendizagem dos surdos e de como ensinar a LP, considerando as relações de poder que existem entre aluno surdo e professor ouvinte, aluno surdo e sociedade. Utilizamos como procedimento metodológico a seleção de mensagens trocadas com surdos da cidade de Nova Andradina e Campo Grande, estado de Mato Grosso do Sul, por inbox, recolhidas da rede social Facebook. A análise é especialmente focada em como ocorre a marcação de tempo nos discursos desses sujeitos, que podem transmitir suas ideias de forma coerente, desde que considerem os aspectos linguísticos de sua língua materna- LM, LIBRAS. Mesmo encontrando barreiras por parte de alguns profissionais da educação e da sociedade a LIBRAS é, de fato, a primeira língua da comunidade surda brasileira, servindo de apoio para que seus membros possam aprender outras linguagens na sua modalidade escrita.
Imagens não só ilustram, palavras não só descrevem: leitura e efeitos de sentido na tessitura verbo-imagética
Authors: Da Rosa Marluza Terezinha
Published: November 2016

Este artigo aborda a leitura de textos que contemplam os registros verbal e imagético, a fim de possibilitar a reflexão sobre o modo como se constroem, linguística e discursivamente, representações sobre o outro/estrangeiro no cenário atual de deslocamentos e de fronteiras entre línguas-culturas. Com esse propósito, analisaremos uma fotografia e três charges, amplamente divulgadas nas mídias digitais, cuja temática é o fluxo migratório em direção ao continente europeu nos últimos anos. O viés teórico-conceitual dos estudos discursivo-desconstrutivistas permite-nos compreender que o funcionamento dessa tessitura se atrela não apenas a um imaginário cultural e historicamente construído, mas também às memórias visual e discursiva. Relacionamos a problemática em questão aos desafios que constituem o ensino-aprendizagem da leitura, por entendermos que, cada vez mais, ler imagens é uma exigência contemporânea, uma vez que estas atuam de forma predominante na constituição de sentidos e em nossa constituição como sujeitos atravessados pela linguagem e pelo discurso. A partir da análise realizada, entendemos que a tessitura verbo-imagética não se resume ao aspecto ilustrativo ou descritivo, mas consiste em uma possibilidade de abertura linguística a um campo potencial de sentidos e de discursos nos quais se produzem as subjetividades.
A escuta de uma professora de língua inglesa em educação continuada: por que não sustentar a posição de louca?
Authors: Neves Maralice De Souza
Published: November 2016

Este estudo apresenta a escuta de uma professora de língua inglesa em Educação Continuada (EC) feita numa reunião denominada Pedagogical Round (PR). Estas são rodadas de conversa inspiradas na Conversação em psicanálise aplicada à educação. O objetivo dessas reuniões é dar lugar à discussão das questões pedagógicas, mas também interrogar a queixa do professor em relação a sua lida com o aluno, normalmente pouco escutada em cursos de EC. Ali se pode focalizar acontecimentos estranhos possibilitando que as discussões suscitadas ultrapassem a interpretação para seguir o caminho indicado na segunda clínica da psicanálise lacaniana (a partir de 1960). Essa abordagem privilegia o que há de insondável no Real para além do Simbólico e do Imaginário, possibilitando que o professor participante caminhe para mais à frente da escuta e da explicação do passado, implicando-se, assim, em um “não-saber” do futuro. Essa posição responsabiliza o professor pelas consequências de suas ações em sala de aula a despeito das opiniões do(s) outro(s). Apresento, assim, recortes gravados e transcritos, durante um PR, no qual a professora Mirela relata ser afetada pela fúria de um aluno. Interpretamos que ela recuou diante de seu modo de satisfação em dançar na aula, inibindo, com isso, um estilo próprio de ensinar a língua. A apresentação de situações como esta é relevante para demonstrar que, para além da qualificação pedagógica dos professores em cursos de EC, é necessário escutar como cada um lida com o que lhe afeta de forma singular.Palavras-chave: educação continuada, singularidade, gozo, real, pedagogical rounds
Sujeitos entre-línguas em contextos de imigração: incidências na subjetividade
Authors: Eckert-Hoff Beatriz Maria
Published: November 2016

Resumo:Este texto – integrado no projeto CNPq “Vozes (in)fames: exclusão e resistência”, coordenado pela professora Maria José Coracini (Unicamp), em intercâmbio com o programa “Casadinho-PROCAD”, financiado pela CAPES, durante o período de 2012-2015 –, propõe-se a analisar escritas de si de sujeitos imigrantes alemães do sul do Brasil por meio de recortes de cartas coletadas na Alemanha. Tendo como aporte teórico a Análise do Discurso de linha francesa que se entremeia com alguns fios da Psicanálise, nosso olhar se dirige às escritas de cartas de sujeitos entre-línguas, para mostrar o entrelaçamanto das línguas na constituição da subjetividade. Nessa linha, entendemos que a interpretação é sempre um gesto de captura; o que se vislumbra são rastros do sujeito cindido, uma vez que há sempre alteridade, incorporação, não-separação. Queremos analisar os enlaces e desenlaces do sujeito na, das e pelas línguas, que revelam incidências subjetivas do sujeito entre-línguas.
Auto representações de uma professora de língua inglesa
Authors: Giarola Natalia Mariloli Santos
Published: November 2016

O presente trabalho aborda a formação de professores na área de Linguística Aplicada buscando analisar dizeres a partir da teoria do discurso atravessada pela psicanálise Freud-lacaniana. Nessa abordagem, o sujeito é heterogêneo, dividido pelo inconsciente e afetado pela linguagem, em busca da completude e unidade que, por serem da ordem do impossível, permitem constantes questionamentos e transformações. O sujeito-professor passa por deslocamentos identitários quando busca se tornar um professor de língua estrangeira (LE) e passa a se identificar como portador de um saber que o distingue das outras pessoas. Neste trabalho, focalizamos em algumas representações de uma professora de Língua Inglesa (LI) sobre si como educadora, e utilizamos recortes de um corpus maior para o desenvolvimento das análises, no qual usamos como metodologia o diário de notas da professora, entrevistas semiestruturadas e notas de campo. O corpus foi organizado a partir de temas surgidos desses dizeres.  Percebemos que a docente representa-se, frustrada e insatisfeita com o seu próprio conhecimento da LI, com a desvalorização do professor e com sua falta de autoridade em sala de aula. Ela também se compara aos outros professores, buscando como sujeito desejante e implicada na formação continuada, se aproximar de uma imagem de si mais proficiente e mais preparada metodologicamente. Este estudo pode contribuir para problematizar a formação de professores, pois discutimos temas que podem fazer com que os docentes se confrontem com os significantes que eles se atribuem ao se dizerem professores e falantes de língua estrangeira.
Several observations about Maneeals - a peculiar system of lines
Authors: Dasari Naga Vijay Krishna , Kabat Jakub
Published: November 2016

For an arbitrary triangle ABC and an integer n we define points Dn, En, Fn on the sides BC, CA, AB respectively, in such a manner that
$$\matrix{{{{\left| {AC} \right|^n } \over {\left| {AB} \right|^n }} = {{\left| {CD_n } \right|} \over {\left| {BD_n } \right|}},} \hfill & {{{\left| {AB} \right|^n } \over {\left| {BC} \right|^n }} = {{\left| {AE_n } \right|} \over {\left| {CE_n } \right|}},} \hfill & {{{\left| {BC} \right|^n } \over {\left| {AC} \right|^n }} = {{\left| {BF_n } \right|} \over {\left| {AF_n } \right|}}.}} $$
Cevians ADn, BEn, CFn are said to be the Maneeals of order n. In this paper we discuss some properties of the Maneeals and related objects.
An Investigation Concerning the Effect of Canal width Contraction that May be Needed in the Location of Constructing Some Irrigation Works
Authors: Ashour Mohamed A. , Aly Tawab E. , Mostafa Mahmoud M.
Published: November 2016

The compatibility between the needed structural designed dimensions of the irrigation works and the dimensions of the water stream or the canal in which the irrigation work will be located has a great importance from more than one point of view. As it is well known, the main aim of the designer of such works is to reach the optimum design for maximum performance efficiency with economical cost, and minimize negative technical impacts that may be harmful to the safety of the whole work. Since the complete suitability between the obtained designed dimensions of the different construction elements of the work, and the original properties and dimensions of the canal in which the work will be constructed, is rarely occurring. The designer always has to make some changes in the original engineering properties and dimensions of canals, such as bed width, bed level, and/or inside side slope, to reach the needed suitable compatibility between the structural design and the natural original canal cross section. For the economical purposes, the design always needs less width of the work, than the width of the bed of the original stream cross section, so a contraction may be needed where the work will be constructed; the literature indicated that, such a contraction must not be less than 0.6 of the original bed width. That contraction, of course, has a direct impact on the different hydraulic parameters, such as water depth, velocity, and flow regime in the location of the work. Changes of such hydraulic parameters may exceed their safe permissible values, and so the whole structure may face some dangerous situations, which must be overcome. In this paper, we present a technical survey of the previous research concerning canal width contraction, with the needed technical comments, and comparisons as a logical approach for a master-thesis under the same title.
Mountaineer’s Waste: Past, Present and Future
Authors: Apollo Michal
Published: November 2016

The growing number of mountaineers (climbers and trekkers) makes the problem of human waste amount to a considerable size (in tonnes of faeces and cubic metres of urine) of environmental degradation. Purity in the high mountains depends mainly on the mountaineers visiting them (the rule of ‘Leave No Trace’); however, if there is no assured suitable sanitation system, no mountaineer can be blamed for leaving human waste (faeces and urine), because the process of excretion cannot be stopped. The management can address the issue in three ways: complete (non–invasive), partial (superficial), and invasive. Those approaches have been elaborately explained in three case studies: Fuji–san (Japan), Yamunotri (India) and Kilimanjaro (Tanzania), respectively. Each of the places have been described based on the provided human waste disposal solutions, starting from the historical perspective and ending with the plans for future implementations, i.e. how it was, how it is, and how it will be. The results showed the improvement of understanding of the environmental pollution by human waste, at least from the management site. Decent changes have appeared in recent years–management bodies care more about human waste disposal. The authorities of mountain regions are gradually exchanging the old, leaking toilets for brand–new eco–friendly ones. Even if this process is slow–mostly because of economical limitations–management bodies appear to be noticing this threat. However, mountaineers do not always follow the implemented and recommended solution, as this study shows. The users should change their irresponsible behaviour, because even the best solutions in the case of human waste disposal in high–mountain conditions will fail if they do not follow the rules.
Services of General Interest and Territorial Sustainability in Romania
Authors: Barbu Oana Nicoleta , Stănilă Cristian
Published: November 2016

The strengthening of social cohesion, the globalization and the opening of the market to free competition, the expanding of the public – private partnership and the sustainable development are the main questions which arise today about the future of services of general interest. The current economic and financial crisis recalls that the main role of the services of general interest lies in ensuring the social and territorial cohesion. At the same time, the crisis has a significant impact on the public sector due to the pressure on public finances and it is essential to make every effort possible in order to keep providing these services and improve their quality. The upcoming accession of Romania to the European Union requires precise criteria for guaranteeing the performance and quality of public services of general interest and, in particular, the development of network industries and the link between these elements is a prerequisite for facilitating the integration, increasing citizens welfare and achieving in a short time the community rules and standards. The role of services of general interest is the sustainable development of a territory and their contribution in maintaining the balance between environment and society, exploiting the available resources in a particular plan, fighting against social exclusion and isolation. Overall, the man has an important role, he can transform the environment, because he is considered an integral part thereof, subject only to maintaining the balance between himself and the other components of the environment; at the same time, he must accept his role as a stabilizing factor in his relationship with nature. Services of general interest in a region should positively influence the life of people in order to achieve the long-term development vision by transforming the region’s functioning of institutions. Sustainable development means recognizing that economy, environment and social welfare are interdependent namely that affecting the environment in terms of quality will sooner or later have a negative influence on economic development and the quality of life of each one of us. The human component is an essential urban mobility, and every type of public service must be carried out in a planned system in terms of territory. A responsible demographic capable of long-term strategies for rational use of resources, ensures sustainability planning. Sustainability does not imply an imposed proactive strategy. If an area has resources, a vigorous and enterprising demographic system, fair and profitable exchanges with the outside, it is sustainable, thus it can evolve without outside intervention.
Natural Hazards in the Albanian Area of Lake Ohrid
Authors: Sulollari Mentor
Published: November 2016

The Albanian part of the Lake Ohrid area is endangered by several natural hazards like: floods, landslides, rock falls, erosion and wild fires. Those events have caused environmental, social and economical damages, so it’s important to study the factors that had caused them, their costs and the measures that should be taken to prevent, or to reduce their impact. Most of those events have been triggered by climate change, increasing of human pressure on land and unplanned urban development. Rapid urbanization of latest years has imposed people to build their homes or other activities on unsafe places. Climate change is another factor that has influenced in floods and droughts. The presence of the mountainous relief in the Western part combined with damage of vegetation cover, plays an important role in generating landslides and erosion of land. Natural hazards map of this area, created with GIS, shows where are distributed and which are the zones that can be caught by one of those events. Through this map the habitants of this area and local authorities, will know the risks and take necessary measures to prevent those events. Objectives of this study are to determine the risked areas and measures to minimize damages in life losing, economy and environment.
Human biomonitoring of bisphenol A exposure in an Austrian population
Authors: Hartmann Christina , Uhl Maria , Weiss Stefan , Scharf Sigrid , König Jürgen
Published: November 2016

Bisphenol A (BPA) is an industrial chemical widely used as a monomer in polycarbonate, epoxy resin and thermal paper production, and as a stabiliser in polyvinyl chloride (PVC) production. Thus, BPA is present in a wide range of common consumer products. Due to contact with BPA-containing products, humans are regularly exposed via different routes. BPA is an endocrine active substance and can potentially lead to different adverse health outcomes. In the present study, total BPA levels were analysed by on-line SPE-HPLC-MS/MS in spontaneous urine samples in order to investigate the exposure to an Austrian population aged 6-15 and 18-81 years. In the total study population (n=594), total BPA were found in 15.7% of all samples, with concentrations up to 17 μg/l (median: n.d., 95th percentile: 3.7 μg/l). These results show generally low BPA levels among the investigated study population. However, children and adolescents exhibited higher exposure levels. Daily BPA intakes were estimated and compared to acceptable exposure levels, whereat no exceedances could be identified. Although BPA exposure was shown to be low in the Austrian population, the wide distribution and the ongoing discussion related to possible negative health effects even at low doses indicate need for further monitoring and investigations.
“Which is the Merchant and which is the Jew?” a Žižekian Reading of the Jewish Question in The Merchant of Venice
Authors: Kuo Shih-pei
Published: November 2016

This essay borrows Žižek’s interpretation of racism which combines the Marxist and psychoanalytic perspectives to read Shakespeare’s The Merchant of Venice. I argue that Shylock, the Jewish usurer, embodies both the structural contradiction of capitalism and the social contradiction which characterizes the Venetian setting torn by capitalism and Christianity. As Shylock exposes these contradictions which the Christian Venetians refuse to confront, he is destined to be a scapegoat. From the Marxist point of view, the survival of capitalism relies on incessant production, which also means incessant investment of capital. Therefore, an active financial system is requisite to sustain the prosperity of capitalism. Paradoxically, this necessary condition of capitalism which facilitates the maximum use of cash is also its inherent vulnerability: once the circulation of cash is disrupted, it can lead to the crisis of the overall domino-effect collapse. The usury represented by Shylock indeed reflects such inherent contradiction of capitalism. Also, usury, which excludes any human factor and only engages the direct monetary exchange, also contradicts the Christian orthodox belief of generosity and unrequited devotion. These central Christian values are certainly questioned as Bassanio’s courtship of Portia, based on his disguised wealth, is indistinguishable from a profitable enterprise. From the psychoanalytic point of view, Shylock’s fascination with money and revenge also mirrors the Christians’ clandestine longing for these two forbidden enjoyments. However, what is more puzzling and hostile to the Christians is Shylock’s paranoid insistence on bloody revenge beyond the concern of monetary gains, “che vuoi,” an unexplainable desire of the other. Therefore, Shylock the other must be vanquished, by converting him to Christianity, in other words, by homogenizing him, to disguise the Christians’ problematic of desire.
Academic Writing in a Japanese Situation: Drawing on the Design Perspective towards an Affirmation of English as a Lingua Franca
Authors: Toh Glenn
Published: November 2016

The contents of this article concern ELF 500, a course in graduate school academic writing that adopts an ELF-aware approach. In my discussion, I will first review the literature on language, ideology and power as it relates to Japanese cultural politics. Following this, I will draw on the notions of critique and design as described in Lillis (2003) as critical transformative strategies to encourage student academic writers to become more conscious of: (1) the constructed and situated nature of knowledge and meaning making as viewed by scholars in the area of academic literacies; (2) the importance of their own agency towards realizing their potential as academic thinkers and writers; and (3) the importance of understanding the fluid, dynamic and performative nature of English in its role as a lingua franca as a means towards constructing meanings that are valuable and unique to their own emergent ontologies as Japanese users of ELF. My discussion is, throughout, very much motivated by a professional concern that the teaching of academic writing should be carried out within an overall pedagogical framework that recognizes the importance of the humanizing and transformative role of language education.
English for Academic Purposes: A need for remodelling
Authors: Leung Constant , Lewkowicz Jo , Jenkins Jennifer
Published: November 2016

English for Academic Purposes (EAP) is an established domain of research, teaching, and assessment within additional/second language education. In this article we examine the conceptualisation of English that underpins much of its current thinking and pedagogic practice, and raise questions of validity and claims of ‘fit-for-purpose’. In particular we explore issues underpinning EAP assessment and argue that there is a need to reconceptualise the basis of the language model. We propose that given the complex and changing practices in academic communication, there is a good case for broadening the established understanding of Academic English to better reflect target language use. The principles and arguments underlying this discussion are relevant to assessment as well as to EAP more broadly.
Influence of cultivar on the content of selected minerals in red beet roots (Beta vulgarisL.)
Authors: Nizioł-Łukaszewska Zofia , Gawęda Maria
Published: November 2016

Beetroot is a vegetable that accumulate heavy metals. This is largely dependent on the cultivar, methods and growing conditions. The aim of the study was to determine the composition of elements in the roots of 15 cultivars of red beet. The analysis assessed the content of macroelements (Na, P) and heavy metals (Cd, Cr, Mn, Zn). Most soils of the Lesser Poland region are exposed to the impact of industrial and transportation pollution. The soils of this region are characterized by strong acidification as well as natural or increased heavy metal content. The experiment was set up at the experimental field of the Department of Vegetable and Medicinal Plants of the University of Agriculture in Krakow, in 2009-2010. On the basis of the performed analysis, ‘Opolski’ was chosen as the cultivar that was characterized by a high content of macroelements and lower ability to accumulate heavy metals than the other tested cultivars. The lowest ability to accumulate heavy metals (Cd and Cr) was found in the cases of cultivars with cylindrical root shapes, such as Rywal or Opolski. One can indicate such cultivars as Astar F1or Nabab F1as cultivars recommended for cultivation in ecologically threatened areas.
Planktonic foraminiferal turnover across the Cenomanian – Turonian boundary (OAE2) in the northeast of the Tethys realm, Kopet-Dagh Basin
Authors: Kalanat Behnaz , Vahidinia Mohammad , Vaziri-Moghaddam Hossein , Mahmudy-Gharaie Mohamad Hossein
Published: November 2016

Two Late Cenomanian – Early Turonian (C–T) intervals of the eastern part of the Kopet-Dagh basin, NE Iran have been investigated to evaluate the response of planktonic foraminifera to the geological event OAE2. The Gharesu and Taherabad sections with the thicknesses of 30 m and 22.5 m are composed of shale and marl interbedded with glauconitic sandstone. Three biozones Rotalipora cushmani, Whiteinella archaeocretacea and Helvetoglobotruncana helvetica were recognized based on study of planktonic foraminifera, in these sections. We observed the patterns of planktonic foraminiferal assemblage changes around the C–T boundary and divided this succession into several successive intervals. This study confirms that OAE2 was a long term event. A gradual perturbation in the study successions starts in the interval 1 with low abundance and diversity of planktonic foraminifera. An enhanced oxygen minimum zone (OMZ) occurs in the interval 3 which coincides with a temporary absence of planktonic foraminifera and sedimentation of framboidal pyrite. High diversity of planktonic foraminifera and appearance of new genera in the interval 5 indicate return of normal conditions to the basin. A significant short-term sea surface temperature cooling is also indicated by planktonic foraminiferal turnover and carbonate contents in the interval 2 which is comparable with other parts of the Tethys Ocean, Boreal sea and Atlantic region.
Analysis of anticoagulants for blood-based quantitation of amyloid β oligomers in the sFIDA assay
Authors: Kravchenko Kateryna , Kulawik Andreas , Hülsemann Maren , Kühbach Katja , Zafiu Christian , Herrmann Yvonne , Linnartz Christina , Peters Luriano , Bujnicki Tuyen , Willbold Johannes , Bannach Oliver , Willbold Dieter
Published: November 2016

Early diagnostics at the preclinical stage of Alzheimer’s disease is of utmost importance for drug development in clinical trials and prognostic guidance. Since soluble Aβ oligomers are considered to play a crucial role in the disease pathogenesis, several methods aim to quantify Aβ oligomers in body fluids such as cerebrospinal fluid (CSF) and blood plasma. The highly specific and sensitive method surface-based fluorescence intensity distribution analysis (sFIDA) has successfully been established for oligomer quantitation in CSF samples. In our study, we explored the sFIDA method for quantitative measurements of synthetic Aβ particles in blood plasma. For this purpose, EDTA-, citrate- and heparin-treated blood plasma samples from five individual donors were spiked with Aβ coated silica nanoparticles (Aβ-SiNaPs) and were applied to the sFIDA assay. Based on the assay parameters linearity, coefficient of variation and limit of detection, we found that EDTA plasma yields the most suitable parameter values for quantitation of Aβ oligomers in sFIDA assay with a limit of detection of 16 fM.
Analysis and Simulation on the Effect of Rotor Interturn Short Circuit on Magnetic Flux Density of Turbo–Generator
Authors: He Yu-Ling , Ke Meng-Qiang , Tang Gui-Ji , Jiang Hong-Chun , Yuan Xing-Hua
Published: November 2016

The intent of this paper is to investigate the effect of the interturn short circuit fault (ISCF) in rotor on the magnetic flux density (MFD) of turbo-generator. Different from other studies, this work not only pays attention to the influence of the faulty degrees on the general magnetic field, but also investigates the effect of the short circuit positions on the harmonic components of MFD. The theoretical analysis and the digital simulation through the FEM software Ansoft are performed for a QSFN-600-2YHG turbo-generator. Several significant formulas and conclusions drawn from the analysis and the simulation results are obtained to indicate the relation between the harmonic amplitude of the MFD and the faulty degree (via nm
, the number of the short circuit turns), and the relation between the MFD harmonic amplitude and the faulty position (via αr
, the angle of the two slots in which the interturn short circuit occurs). Also, the developing tendency of the general magnetic field intensity, the distribution of the magnetic flux lines, and the peak-to-peak value of MFD are presented.
Adaptive Current Control Method for Hybrid Active Power Filter
Authors: Chau Minh Thuyen
Published: November 2016

This paper proposes an adaptive current control method for Hybrid Active Power Filter (HAPF). It consists of a fuzzy-neural controller, identification and prediction model and cost function. The fuzzy-neural controller parameters are adjusted according to the cost function minimum criteria. For this reason, the proposed control method has a capability on-line control clings to variation of the load harmonic currents. Compared to the single fuzzy logic control method, the proposed control method shows the advantages of better dynamic response, compensation error in steady-state is smaller, able to online control is better and harmonics cancelling is more effective. Simulation and experimental results have demonstrated the effectiveness of the proposed control method.
A Simultaneous Biogeography based Optimal Placement of DG Units and Capacitor Banks in Distribution Systems with Nonlinear Loads
Authors: Sadeghi Hassan , Ghaffarzadeh Navid
Published: November 2016

This paper uses a new algorithm namely biogeography based optimization (BBO) intended for the simultaneous placement of the distributed generation (DG) units and the capacitor banks in the distribution network. The procedure of optimization has been conducted in the presence of nonlinear loads (a cause of harmonic injection). The purpose of simultaneous optimal placement of the DG and the capacitor is the reduction of active and reactive losses. The difference in the values of loss reduction at different levels of the load have been included in the objective function and the considered objective function includes the constraints of voltage, size and the number of DG units and capacitor banks and the allowable range of the total harmonic distortion (THD) of the total voltage in accordance with the IEEE 519 standards. In this paper the placement has been performed on two load types ie constant and mixed power, moreover the effects of load models on the results and the effects of optimal placement on reduction of the THD levels have also been analyzed. The mentioned cases have been studied on a 33 bus radial distribution system.
Influence of Quenching Rate on the Structure, Morphology, and Hyperfine Parameters of Amorphous Ribbons
Authors: Amini Narges , Dekan Július , Pavúk Milan , Habibi Safdar , Miglierini Marcel
Published: November 2016

In this work, an amorphous alloy with the nominal composition of Fe78Si9B13 was produced by a melt spinning method. Using different velocities of a quenching cooper wheel enabled us to study the influence of quenching rate upon the structural characteristics of the resulting ribbons. Structural features of the samples were checked by Mössbauer spectroscopy and X-ray diffraction. The latter performed in a grazing angle geometry enabled us to explore both sides of the as-quenched ribbons. The onset of crystallization was estimated by differential scanning calorimetry (DSC) measurements. Surface features of the ribbons were examined by Scanning Electron Microscopy (SEM). In order to observe structural relaxation phenomena the samples were annealed below the onset of crystallization at 450 °C for 1 hour in Ar protective atmosphere. Even though the annealed ribbons are still amorphous relevant changes were observed in their hyperfin parameters as derived from Mssbauer spectrometry.
A Novel Subcarrier Allocation Algorithm for MC–CDMA Systems
Authors: Seyman Muhammet Nuri , Saçakli Bircan
Published: November 2016

Multi carrier modulation techniques such as MC-CDMA are used in high-speed communication applications. Due to MC-CDMA being a multiuser in technology, the subcarrier quantity allocated per user decreases in case the quantity of active users increases. Consequently, data rates per user are reduced with the increase in the bit error rate (BER). Efficient allocation of subcarriers to users within the system can aid the overcoming of this problem. This study develops a new algorithm for subcarrier allocation and system performance improvement in terms of BER, and data rates in comparison to other algorithms were ensured.
Electrophysical Properties of GaAs P–I–N Structures for Concentrator Solar Cell Applications
Authors: Kósa Arpád , Mikolášek Miroslav , Stuchlíková Ľubica , Harmatha Ladislav , Dawidowski Wojciech , Ściana Beata , Tłaczała Marek
Published: November 2016

This paper is dedicated to electro-physical characterisation of a GaAs p-i-n structure grown for solar cell applications, which was carried out by light and dark current-voltage (I–V) and Deep Level Transient Fourier Spectroscopy (DLTFS) methods. The conversion efficiency and open-circuit voltage were determined from I–V measurement at 1 and 20× sun light concentrations. Three electron like defects TAn1, TAn2, TDn and one hole like defect TBp obtained by DLTFS measurements were confirmed. The origin of these defect states was stated as native GaAs impurities.
Comparative Electromagnetic and Quasi–Static Simulations of a Shortpulse Propagation along Microstrip Meander Delay Lines with Design Constraints
Authors: Orlov Pavel , Gazizov Talgat , Zabolotsky Aleksander
Published: November 2016

A numerical analysis of microstrip meander delay lines is considered. Results of quasi-static and electromagnetic simulations are given. It is shown that when increasing a number of turns and proportionally reducing their length, distortions of a pulse signal in the line are reduced. At the same time, despite structure’s electrical width increase, the agreement between the results of quasi-static and electromagnetic analyses is improved. Thus, it is demonstrated that when designing the microstrip meander delay lines with minimal distortions, the quasi-static analysis is relevant.
Simulative Analysis of Inter-Satellite Optical Wireless Communication (IsOWC) Link with EDFA
Authors: Singh Mehtab , Singh Navpreet
Published: November 2016

In this paper, simulative analysis and performance comparison of different EDFA (Erbium-doped fiber amplifier) configurations in a 10 Gbps inter-satellite optical wireless communication (IsOWC) link have been reported for a 5,000 km long link and 1,550 nm operating wavelength. The results show that system in which both pre-amplifier and booster amplifier stages are implemented simultaneously outperforms systems with only pre-amplifier and booster amplifier stage. From the results, it can be seen that by deploying a transmission power level of 15 dBm, a link distance of 9,600 km can be achieved with a quality factor of 6.01 dB and BER (Bit error rate) of

1.07
×

10

−
9

$$1.07 \times {10^{- 9}}$$

. Also, in this paper, the performance of an 8×7 Gbps WDM-IsOWC link has been reported. The results show that by using both EDFA pre-amplifier and booster amplifier stages, a link distance of 8,000 km for each channel is achievable with desired performance levels (Q≥6 and BER≤

10

−
9

$${10^{- 9}}$$

). Also, the effect of channel spacing on the performance of WDM-IsOWC link is investigated. The results show that the received signal has acceptable performance levels when the channel spacing is 100 GHz but when the channel spacing is reduced to 80 GHz, the quality of the received signal degrades and link distance decreases.
Research on Segmentation Monitoring Control of IA-RWA Algorithm with Probe Flow
Authors: Ren Danping , Guo Kun , Yao Qiuyan , Zhao Jijun
Published: November 2016

The impairment-aware routing and wavelength assignment algorithm with probe flow (P-IA-RWA) can make an accurate estimation for the transmission quality of the link when the connection request comes. But it also causes some problems. The probe flow data introduced in the P-IA-RWA algorithm can result in the competition for wavelength resources. In order to reduce the competition and the blocking probability of the network, a new P-IA-RWA algorithm with segmentation monitoring-control mechanism (SMC-P-IA-RWA) is proposed. The algorithm would reduce the holding time of network resources for the probe flow. It segments the candidate path suitably for the data transmitting. And the transmission quality of the probe flow sent by the source node will be monitored in the endpoint of each segment. The transmission quality of data can also be monitored, so as to make the appropriate treatment to avoid the unnecessary probe flow. The simulation results show that the proposed SMC-P-IA-RWA algorithm can effectively reduce the blocking probability. It brings a better solution to the competition for resources between the probe flow and the main data to be transferred. And it is more suitable for scheduling control in the large-scale network.
Barium oxide as a modifier to stabilize the γ-Al2O3 structure
Authors: Pakdehi Shahram G. , Rasoolzadeh Maryam , Moghadam Ali Saberi
Published: November 2016

This research concentrated on the structural stability of γ-alumina (γ-Al2O3) was investigated by a combination of differential thermal analysis, X-ray diffractometry and surface-area measurements. The γ –to– θ and then α phase transitions were observed as an exothermic peak at 1000°C–1400°C in the DTA curves. The role of barium oxide as a modifier to stabilize γ-Al2O3 structure has been investigated. XRD measurements show that after calcination at 1000°C for 2 h, a significant fraction of the pure γ-Al2O3 (BaO-free) transformed to θ-Al2O3 while that the transition phase in alumina samples modified by BaO have been reduced significantly. Barium oxide, eliminate pentacoordinated aluminum ions through coordinative saturation and alter these ions into octahedral cations and effectively suppressed the γ –to– α phase transition in Al2O3, which concluded as improving the thermal stability and porous properties of the experimental samples.
Evaluating the Effectivenes of Antiseptic Solution Decasan in Treatment of Necrotic Soft Tisue Diseases
Authors: Fuss Julia , Palii Victor , Voloboyeva Anna
Published: November 2016

Sepsis is a severe generalised infection caused usually by pathogenic bacteria. It is often the cause of hospitalization and death in patients treated in intensive care and other hospital wards. Latest research brought to better understanding of patomechanisms, took place significant development of therapy heading to improvement of general patients condition treated as a basis and additionally supported by local therapy.

was to evaluate the possibility of using the solution Decasan in the comprehensive treatment of patients necrosis of soft tissues.

The study included 192 patients (W/M 103/89; average -aged 53.35 ± 5.36 years). According to the classification of septic states (Chicago, 1991), patients were divided into three groups: first – patients to the local form of the infection, the second – with Systemic Inflammatory Response Syndrome (SIRS), which lasted up to 72 hours and the third – patients with various forms of sepsis, SIRS in which lasted 72 hours.

As a result of our studies carried out in patients where the wound was made decontamination solution Decasanu, received: pain reduction, decrease tissue swelling, early debridement of the wound and the appearance in the wound granulation, to reduce delays wound healing. Proposed algorithms treatment of various forms of sepsis, pointed out the essential elements, ie.: a comprehensive approach to the treatment of infection by early surgical intervention, intensive supportive therapy (fluid resuscitation), antibiotic therapy directed to microorganisms that cause infections and topical antiseptics therapy (solution Decasanu).

The preparation antiseptic Decasan can be safely used for disinfection of skin, mucous membranes and wounds in the foci of infections caused by bacteria, fungi and protozoa.
Same Quality of Life for Polish Breast Cancer Patients Treated with Mastectomy and Breast Reconstruction or Breast-Conserving Therapy
Authors: Szutowicz-Wydra Beata , Wydra Jacek , Kruszewski Wiesław J. , Ciesielski Maciej , Szajewski Mariusz , Walczak Jakub , Hansdorfer-Korzon Rita
Published: November 2016

Breast cancer often requires combined oncologic treatments, the base of which is surgery. Quality of life (QoL) after each surgical procedure may influence the process of decision making among women, who qualify for multiple oncological strategies. Our knowledge about QoL in breast cancer patients is derived from comparative studies. Results may differ, depending on country, culture, and societal relations.

was to investigate the quality of life of Polish patients treated with breast-conserving therapy (BCT) or mastectomy with breast reconstruction.

The study involved women who underwent surgery for breast cancer in the Department of Surgical Oncology of the Gdynia Oncology Center from September 2010 to November 2013. Eighty-two breast reconstructions (in 79 patients) and 226 BCT procedures were performed. QoL was measured with the use of EORTC QLQ-C30 and QLQ-BR23 questionnaires.

Global QoL was high in both groups and did not differ significantly. Body image was slightly better after BCT than after mastectomy with breast reconstruction, but sexual QoL was lower. Future perspective was quite low in both groups. Disease symptoms were not bothering.

The global QoL among Polish breast cancer patients treated with BCT or mastectomy with breast reconstruction is high and does not differ between groups. There is a need for anxiety and disease-related fear prophylaxis and for the improvement of sex life of breast cancer survivors.
Septic Shock in the Course of Liver Absces Rescued with Percutaneous Drainage – A Literature Review and Case Report
Authors: Snarska Jadwiga , Michalak Maciej , Masiulaniec Piotr , Jacyna Krzysztof , Zalewski Artur
Published: November 2016

This study presented a septic shock occurring with striking speed during the percutaneous drainage of a large abscess of the liver in an 18-year-old female patient after an appendectomy performed 3 months earlier using the laparoscopic method because of its phlegmonous and gangraenosus inflammation. The post-operative course was complicated by increased suppuration in places after removal of the trocars. After including the intravenous antibiotic therapy and under the USG control, the percutaneous drainage of the abscess was performed. While withdrawing the guide of the drainage catheter set, the symptoms of septic shock occurred. The pharmacological treatment was applied with continuation of the antibiotic therapy till a negative result of microbiological tests was obtained and the normalization of life parameters. The patient was not qualified for treatment in the ICU. She was discharged in a generally good condition after 24 days of hospitalization. In the case of this patient, the drain covered with the content of the abscess may have contact with the adjacent tiny blood vessels, which may have contributed to the systemic inflammatory response syndrome that was linked with fast-developing sceptic shock.
Power Analysis of PV System Used in Wastewater Treatment Plant based on Technological
Authors: Badea A. , Andrei H. , Rus E.
Published: November 2016

As a real progress evolves in the field of wastewater treatment, the scientific community is addressing new challenges at different design levels. One of them constitutes the optimization of energy consumption and the use of various renewable energy sources. In this article technological models of wastewater treatment plant are developed in order to analyze the energy delivered by PV system. The technological models are closely associated to an optimum energy consumption of the plant and the simulation results validate the proposed methodology.