65,377 research outputs found

    First record of Itamus castaneus Schmidt-Goebel, 1846 (Coleoptera: Carabidae: Paussinae) for Pakistan.

    No full text
    The species Itamus castaneus Schmidt-Goebel, 1846 is first time reported from Pakistan. Data on its distributional status are also provided.Se cita por primera vez para Pakistán la especie Itamus castaneus Schmidt-Goebel, 1846 (Coleoptera: Carabidae: Paussinae). Se aportan datos sobre su distribución

    Benedict Anderson (1936-2015)

    No full text
    Fil: Goebel, Michael. Freie Universität Berlin; Alemania.El 13 de diciembre del año pasado falleció en Java Oriental Benedict Anderson, uno de los historiadores más conocidos e influyentes del último medio siglo. Mundialmente su fama se debió principalmente a un gran pequeño libro publicado en 1983: Comunidades imaginadas, que refundó los términos de debate sobre nacionalismos y estados-nación, creando casi un nuevo campo de estudio. En América Latina, en cambio, la reputación del libro en parte se basó en su argumento de que el nacionalismo se había originado no en Europa, sino en la América española, validando de este modo el interés por la historia latinoamericana como pocos otros libros

    Benedict Anderson (1936-2015)

    No full text
    Fil: Goebel, Michael. Freie Universität Berlin; Alemania.El 13 de diciembre del año pasado falleció en Java Oriental Benedict Anderson, uno de los historiadores más conocidos e influyentes del último medio siglo. Mundialmente su fama se debió principalmente a un gran pequeño libro publicado en 1983: Comunidades imaginadas, que refundó los términos de debate sobre nacionalismos y estados-nación, creando casi un nuevo campo de estudio. En América Latina, en cambio, la reputación del libro en parte se basó en su argumento de que el nacionalismo se había originado no en Europa, sino en la América española, validando de este modo el interés por la historia latinoamericana como pocos otros libros

    A 21/16-Approximation for the Minimum 3-Path Partition Problem

    No full text
    The minimum k-path partition (Min-k-PP for short) problem targets to partition an input graph into the smallest number of paths, each of which has order at most k. We focus on the special case when k=3. Existing literature mainly concentrates on the exact algorithms for special graphs, such as trees. Because of the challenge of NP-hardness on general graphs, the approximability of the Min-3-PP problem attracts researchers' attention. The first approximation algorithm dates back about 10 years and achieves an approximation ratio of 3/2, which was recently improved to 13/9 and further to 4/3. We investigate the 3/2-approximation algorithm for the Min-3-PP problem and discover several interesting structural properties. Instead of studying the unweighted Min-3-PP problem directly, we design a novel weight schema for l-paths, l in {1, 2, 3}, and investigate the weighted version. A greedy local search algorithm is proposed to generate a heavy path partition. We show the achieved path partition has the least 1-paths, which is also the key ingredient for the algorithms with ratios 13/9 and 4/3. When switching back to the unweighted objective function, we prove the approximation ratio 21/16 via amortized analysis

    Energy-Efficient Train Operation: Conclusions and Future Work

    No full text
    This chapter gives the basic conclusions about energy-efficient train operation covering energy-efficient train driving, energy-efficient train timetabling, regenerative braking, energy storage systems and power supply networks. Future work that will develop energy-efficient train operation further include the interaction of connected driver advisory systems (C-DAS) and automatic train operation (ATO) with railway traffic management systems, cooperative train control in platoons of virtually coupled trains, digital twin technology and particularly its application to power supply systems, and the interaction between the railway network with the electrical power grid and renewable energy generation.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Transport and Plannin

    Relating Research and Teaching: comparing experiences and beliefs

    No full text
    The relationship between research and teaching has possible benefits and inherent tensions. It is a recurrent topic of discussion by faculty including engineering educators. Exploring a potentially beneficial relationship and is of interest and possible value to engineering faculty, our students, and our stakeholders. Institutions and departments have developed a range of approaches including research-led, research informed, or just plain scholarly. This paper examines the relationship between research and teaching in the undergraduate curriculum. It compares and contrasts evidence of the beliefs and experiences of the engineering faculty and the engineering student. It presents and analyses the result of surveys which gathered qualitative and qualitative data to explore the inter-relationship of research and teaching; in the curriculum; and as it is delivered and experienced in the lab, seminar room and lecture hall. This research builds on existing work developed in a preliminary study which examined ways in which synergies between research and teaching could be achieved, particularly in the ‘hard/applied’ areas of the curriculum. It analyses data from the ‘research-intensive’ and the ‘teaching-intensive’ perspective

    Música Antiqua Köln (Alemania)

    No full text
    Concierto interpretado por el grupo Música Antiqua Köln. Creada en 1973 por Reinhard Goebel, la agrupación afianzó su reconocimiento internacional en 1979, cuando se presentó por primera vez en el Queen Elizabeth Hall de Londres, e inmediatamente después fue invitada para ofrecer una serie de cinco conciertos en el prestigioso festival de Holanda. Entre las distinciones recibidas por la Música Antiquia Köln figura el premio Buxtehude otorgado por la ciudad de Lübeck, los premios Siemens y el estado de Nordrh in-Westfalen. En 1981 fue declarada artista del año por la académia alemana de discos. Este concierto también se celebró el 28 de Agosto de 1998 a las 7:30 pm en la sala de conciertos de la Biblioteca Luis Ángel Arango

    Education for Cataloging in Spanish Universities: A Descriptive and Critical Study

    No full text
    Objective: This is a critical descriptive study of the situation of cataloging as an academic discipline within Library and Information Science studies in Spain. Material and methods: The descriptive analysis of the sectional contents of the general and specific guidelines of the degrees of Diplomado (three-year degree) and Licenciado (fiveyear degree) in LIS and the curricular programs of the Spanish university schools or departments. Variables analyzed: The denomination and content descriptors of the course offerings and credit hours. The test-retest method was used, with a qualitative processing of data. Results: General data is given about the studies in LIS: their introduction, the universities that offer them, and the degrees awarded. Cataloging is considered an obligatory core subject matter, and is represented by several courses that present important differences insofar as their denominations, their credits, and their character from one curricular program to the next. The average credit requisite for obligatory courses in cataloging in Spain is 14 (1 credit = 10 class hours), and 19.7 if electives are also considered. At present, this discipline is undergoing a reform that will produce important changes as a result of the adaptation of university studies to the common framework of the European Union

    Introduction to Energy-Efficient Train Operation

    No full text
    Railway, as one of the most energy-efficient transport, plays an essential role in improving the world’s energy and environmental sustainability. Statistics about rail share of transport activities and the corresponding energy consumption will demonstrate the energy efficiency of railway and indicate the potential of developing railway transport. Therefore, this chapter will provide an overview of the railway's energy consumption and traffic volume shares. Statistics presented in this chapter show that railway energy consumption decreased in these decades while its transport volume kept stable, and the traffic volume share of the railway is extremely large in urban transport. To achieve the goal of carbon neutralization, the European Union and many countries have conducted research projects on railway energy conservation. The technologies developed in these projects include energy-efficient train driving, integrated timetabling, using regenerative braking energy, etc. A summary of these technologies is also given, along with their potential energy savings, which range from 1 to 25%. This book will analyse and illustrate the whole systems processes of train operation with optimisation solutions. The structure of the following chapters will be presented at the end.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Transport and Plannin
    corecore