188,151 research outputs found
Editorial Annals of Regional Science
No full textThere is no tradition in Annals of Regional Science that the editors write editorials. However, as of 2020, the editors will each year write an editorial in which we report as well as reflect on recent developments of the journal. We hope that this will be of interest for our readers. This editorial is the first one and marks the start of the strategy to write a yearly editorial.We, i.e., Martin Andersson (Sweden), Hong Sok Kim (South Korea) and Janet Kohlhase (USA), are by some standards a rather new constellation of editors-in-chief (EICs). Janet Kohlhase became an editor in 2011, replacing professor Roger Stough.1 Martin Andersson joined as editor in 2014 and replaced professor Börje Johansson. Hong Sok (Brian) Kim became an editor in 2019 by replacing profes-sor Euijune Kim. The former EICs continue to be part of the journal in the capacity as members of the advisory board of former editors. We are all delighted to serve as EICs and are committed to maintain as well as to further develop the journal’s tradition of publishing high-quality and influential research that pushes the field of regional science forward.open access</p
Optimiranje sestave betonov ter zmrzlinsko obstojnih betonov glede na transportne pogoje : diplomsko delo [univerzitetnega študijskega programa]
No full textPolinomok sok prím értékkel
No full textPrímszámokkal kapcsolatban nagyon sok nehéz, és csupán részben megoldott probléma
ismert. Ezen problémakörök közül talán a legérdekesebb a polinomok és a prímszámok
kapcsolata.
Dirichlet tétele szerint minden számtani sorozat {a+kb½k=0,1,2,…}, végtelen sok
prímet tartalmaz, ha lnko(a,b)=1. Magasabb fokú polinomokra azonban még annyi sem
ismert, hogy létezik-e akár egyetlen egy olyan egész értékő másodfokú polinom, amely
egész helyeken végtelen sok prímet vesz fel. Néhány polinomnál könnyő igazolni, hogy
prím értékeket vesznek fel, és még az is lehetséges, hogy számos egymást követı helyen
vesznek fel prím értékeket.
Az I. fejezetben megvizsgálunk néhány ilyen prímgeneráló polinomot, valamint szó
lesz az imaginárius kvadratikus testekrıl is, amelyek elmélete szorosan kapcsolódik a
prímgeneráló polinomokhoz.
A II. és III. fejezetben többek között megmutatjuk, hogy egy f(x) egész értékő
polinomnak van olyan f(x)+c eltoltja, amely legalább M különbözı egész helyen vesz fel
prím értéket. Azt is megmutatjuk, hogy tetszıleges M számhoz bármely f(x) polinomnak
van olyan f(x)+c eltoltja, amelyre teljesül, hogy létezik M különbözı p prímszám oly
módon hogy az f(p)+c is prímszám.BaN.I
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Two channel wavelength division multiplexer using dichroic filter
No full text학위논문(석사) - 한국과학기술원 : 물리학과, 1984.2, [ iv, 96 p. ]한국과학기술원 : 물리학과
Derivation of nonlinear coupled equation of phase conjugate wave and the characteristics of volume gratings experimentally recorded in absorbing medium
No full text학위논문(박사) - 한국과학기술원 : 물리학과, 1987.2, [ v, 122 p. ]한국과학기술원 : 물리학과
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Study on microstructure and magnetic properties of thin films
No full text학위논문(석사) - 한국과학기술원 : 물리학과, 2002.8, [ ii, 43 p. ]한국과학기술원 : 물리학과
A Conceptual Framework for Definition of the Correlation Between Company Size Categories and the Proliferation of Business Information Systems in Hungary Download article
No full textBased on a conceptual model, this paper aims to explore the background of the decision-making process leading to the introduction of business information systems among enterprises in Hungary. Together with presenting the problems arising in the course of the implementation of such systems, their usage patterns are also investigated. A strong correlation is established between the size of an enterprise, the scope of its business activities and the range of the business information systems it applies
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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