2,003 research outputs found
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
Field-scale validation of an automated soil nitrate extraction and measurement system
No full textOne of the many gaps that needs to be solved by precision agriculture technologies is the availability of an economic, automated, on-the-go mapping system that can be used to obtain intensive and accurate ‘real-time’ data on the levels of nitrate nitrogen (NO3–N) in the soil. A soil nitrate mapping system (SNMS) has been developed to provide a way to collect such data. This study was done to provide extensive field-scale validation testing of the system’s nitrate extraction and measurement sub-unit (NEMS) in two crop (wheat and carrot) production systems. Field conditions included conventional tillage (CT) versus no tillage (NT), inorganic versus organic fertilizer application, four soil groups and three points in time throughout the season. Detailed data analysis showed that: (i) the level of agreement, as measured by root mean squared error (RMSE), mean absolute error (MAE) and coefficient of efficiency (CE), between NEMS soil NO3–N and standard laboratory soil NO3–N measurements was excellent; (ii) at the field-scale, there was little practical difference when using either integer or real number data processing; (iii) regression equations can be used to enable field measurements of soil NO3–N using the NEMS to be obtained with laboratory accuracy; (iv) future designs of the SNMS’s control system can continue to use cheaper integer chip technology for processing the nitrate ion-selective electrode (NO3 -–ISE) readings; and (v) future designs of the SNMS would not need a soil moisture sensor, ultimately saving on manufacturing costs of a more simple syste
Fabrieksschema betreffende de "Bereiding van Magnesium uit Zeewater": Deel I
No full textDocument(en) uit de collectie Chemische Procestechnologie Deel II zie: Deeg, J.F., Chemical Process Design 1101DelftChemTechApplied Science
Beatty, J.F., and the Law of Manslaughter
No full textIn this article, the author argues that the recent Supreme Court of Canada decisions in R. v. Beatty and R. v. J.F. have clarified several of the issues that have plagued the increasingly complicated offence of manslaughter. In particular, the decisions address the redundancy among the many manslaughter provisions in the Criminal Code, the need to define a clear separation between actus reus and mens rea, and the need to establish distinct categories of objective fault for different types of manslaughter offences. The author examines the legal background of these decisions as well as the current state of the law. He concludes by identifying emerging issues relating to the offence of manslaughter, arguing that the law remains convoluted and in need of urgent reform despite the progress made in the Beatty and J.F. decisions
Bouwen aan de delta: Gerealiseerde waterbouwkundige werken, Inzendingen prof. dr. ir. J.F. Agemaprijs 2015
No full textDe afgelopen jaren (2010 - 2015) zijn er in Nederland vele in het oog springende waterbouwkundige projecten gerealiseerd. Aansprekende voorbeelden betreffen onder meer Maasvlakte 2, de Zandmotor, de ontpoldering van de Noordwaard en de omlegging van de Zuid-Willemsvaart. Ook in de lokale watersystemen zijn diverse interessante projecten gebouwd. Veel van deze projecten hebben zich aangemeld voor de prof. dr. ir. J.F. Agemaprijs, dé prijs voor het beste en meest innovatieve waterbouwkundige project dat daadwerkelijk gebouwd is. Dit boek toont foto’s en projectinformatie, en bevat achtergrondinformatie over de Agemaprijs en essays van experts. De verschillende projecten geven een fraai beeld van de veelzijdigheid en innovativiteit van de Nederlandse (water)bouwers. Het boek geeft inzicht in de huidige en toekomstige manier waarop deltagebieden kunnen worden ingericht.Delft University of Technolog
On the equilibrium configuration of the BC-type ruijsenaars-Schneider system
No full textVan Diejen, J.F. (reprint author). Instituto de Matemática y Física, Universidad de Talca, Casilla 747, Talca, Chile.It is shown that the ground-state equilibrium configurations of the trigonometric BC-type Ruijsenaars-Schneider systems are given by the zeros of Askey-Wilson polynomial
Australian author Dale Collins with wife Aileen and another man onboard the Ellerman and Bucknall steamer City of Delhi, New South Wales, 7 December 1929 [picture].
No full textTitle devised from accompanying information where available.; Part of the: Fairfax archive of glass plate negatives.; Fairfax number: 5866.; Full name: Cuthbert Quinlan Dale Collins; Also available online at: http://nla.gov.au/nla.pic-vn6256859; Acquired from Fairfax Media, 2012
La Fete. Marche de Brayoure.
No full textsectionalpianoTo Joseph P. Shawads on back cover for J.F. Shaw stockJohns Hopkins University, Levy Sheet Music Collection, Box
180, Item 034par Edgar H. Sherwood.as performed by the Author at the Opening of Shaw's New Music Rooms, Rochester, N.Y.C.F. Muntz & Co. Lith. Rochester N.Y
Geschichte der Poesie und Beredsamkeit seit dem Ende des dreizehnten Jahrhunderts. /
No full textA continuation of v. 3 ("3. Bd., 2. Abth.") appeared, Göttingen, Vandenhoeck & Ruprecht, 1850, under title: Die Nationalliteratur der Spanier Seit dem Anfange des 19. Jahrh. Von Ed. Brinckmeier...Added t.-p.: Geschichte der Künste und Wissenschaften seit der Wiedarherstellung derselben bis an das Ende des achtzehnten Jahrhunderts. Von einer Gesellschaft gelehrter Männer ausgearbeitet. Dritte Abtheilung. Geschichte der schönen Wissenschaften, von Friedrich Bouterwek. Göttingen, J.F. Röwer, 1801-19.V. 1-2. Introduction (40 p.) Italy.--v. 3. Spain.--v. 4. Portugal.--v. 5-6. France.--v. 7-8. England.--v. 9-11. Germany.--v. 12. Classified table of contents, and author index.Europeana-GoogleBook
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