1,482 research outputs found
Review of Data Collection Methods for Microscopic Traffic Simulation
No full textResearch into developing more reliable microscopic traffic simulation models is seriously hampered by the availability of suitable microscopic data for calibration and validation purposes. This paper presents a review of several data collection technologies that the authors have been experimenting with. The methods include (i) video recording (ii) the use of differential GPS (DGPS) and (iii) an instrumented vehicle fitted with the S.M.S. Drive Recorder system. Examples of data collection with each method are briefly described, and some of the results presented to illustrate the capabilities of the methods. The last section of the paper summarises the advantages and limitations of each method and conclusions are drawn on their suitability for the required purpose. The experiments shows that each method can provide some useful results for microscopic simulation model development, but cannot provide continuous spacing-, speed- and acceleration profiles of large vehicle platoons moving through various traffic scenarios. Further research is required to develop more sophisticated data collection techniques and to investigate such aspects of driver behaviour as aggressiveness, and factors influencing lane selection
Bathonian (Middle Jurassic) crinoids of the Hidas Valley (Mecsek Mountains, S Hungary) and their biogeographic significance
No full textThe Bathonian crinoid fauna that occurs in red nodular limestone and argillaceous limestones from the Hidas Valley, Mecsek Mts (southern Hungary) consists of three isocrinid and six cyrtocrinid species. Isocrinids are represented by Balanocrinus inornatus (d’Orbigny), B. berchteni Hess and Pugin and Balanocrinus sp. Cyrtocrinids are represented by Phyllocrinus stellaris Zaręczny, P. birkenmajeri Głuchowski, P. malbosianus d’Orbigny, Apsidocrinus sp., Lonchocrinus sp., and the new species Psalidocrinus hidasinus sp. nov. This last species is the earliest occurrence of the genus Psalidocrinus previously known from the Early Tithonian to Valanginian. This is the first crinoid fauna described from the Middle Jurassic (Bathonian) of Hungary. The co-occurrence of isocrinids and cyrtocrinids indicates an environment subject to weak currents. The stratigraphical and geographical distribution of the identified cyrtocrinid genera and species suggests a Tethyan origin and subsequent migration to the northern Tethyan shelf
Cuarteto de Metales V y P, cuarteto de cobres (Colombia)
No full textConcierto celebrado por el Cuarteto de Metales V y P. Este cuarteto tiene como objetivo vivenciar la música de cámara, en la cual encontraron un mundo lleno de posibilidades para los instrumentos de metal; esto les ha permitido trabajar los diferentes estilos y períodos de la música.
En este concierto interpretaron obras de los siguientes compositores: Pierre Passereau, GiovanniI Gabrieli, Johann Sebastian Bach, Hidas Frigyes, Norman Gazden, Harold Walters, Gustavo Parra, Stephen Foster, Pedro Morale Pino, Carlos Veco y Anselmo Alvarado
Evaluation and further development of car following models in microscopic traffic simulation
No full textValue of housework time and changes in traditional economic well-being in Finland in 1979-2000
No full textThe paper looks at the change, the level and the structure of income distribution and distribution of consumption possibilities at the individual and at the household level between the years 1979 and 2000. I also pay attention to the development of low incomes when the concept of income is expanded to include a monetary measurement of household production. The paper uses Time Use Data, collected by Statistics Finland in 1979, 1987-1988 and 1999-2000. I find that consumption possibilities are more equally distributed than money income. Household production increases the consumption possibilities of all income groups but its effect is most significant in the low income decile groups. As a share of consumption possibilities, household production forms a significantly more important part for low income households than for high income households. By looking at consumption possibilities we can see a different distribution of economic well-being compared to distribution offered by money income measurement alone.Value of housework time, consumption possibilities, economic well-being, inequality, poverty
Additív technológiák alkalmazása veteránautó alkatrészek gyártása során
No full textEgyetemi/MA/MSc[2] p
Tentamen publicum ex praelectionibus metaphysicis r. p. Joannis Bapt. Horváth ... nec non ex mathematicis r. p. Balthasaris Nagy ... quod coram ... inclytae Facultatis Philosophicae decano p. Andrea Bernolák, e Societate Jesu ... ac tota Facultate Philosophica mense Augusto, die [üres hely] subibit ... Franciscus Mauritius Hidas, ..
No full textEpidemiologie des patellofemoralen Schmerzsyndroms bei Sportlern und in der Normalbevölkerung
No full textEstudo do controle de acesso em rodovias através de um modelo de inserção para simuladores microscópicos de tráfego
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.As rodovias próximas aos centros urbanos caracterizam-se por um fluxo intenso e um número relativamente grande de acessos laterais para a entrada e saída de veículos. Nos momentos de pico, algumas regiões próximas a esses acessos tornam-se congestionadas, pois o fluxo de veículos que sai do trecho de rodovia que possui o acesso é menor do que a capacidade desse trecho. Esse congestionamento ocorre em virtude de dois motivos: restrição física da capacidade da rodovia e restrição temporária em razão da dinâmica do tráfego. A restrição temporária em virtude da dinâmica do tráfego pode ser evitada com o uso do controle do tráfego de veículos em rodovias por meio do controle de acesso (ramp metering), que faz o fluxo de veículos na rodovia atingir o seu valor ótimo. Esta dissertação apresenta um estudo do controle de acesso em rodovias. Com base na análise de deficiências do comportamento de um simulador microscópico comercial, é feita a proposição de um modelo microscópico de simulação capaz de representar o fenômeno da redução dinâmica de capacidade. Usando como ferramenta o modelo de simulação proposto, é estudada a aplicação do algoritmo ALINEA em diferentes situações de entrada de veículos em rodovia de pista simples. Os resultados da simulação indicam que o controle de acesso em rodovias pode evitar ou amenizar o fenômeno da redução dinâmica da capacidade
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