129,681 research outputs found
P'ungsu: A Study of Geomancy in Korea
No full textThis book is a milestone in the history of academic research on the development and role of geomancy (fengshui in Chinese and p'ungsu in Korea) in Korean culture. As the first interdisciplinary work of its kind, it investigates many topics in geomancy studies and contains contributions from a number of disciplines including geography, historical studies, environmental management, architecture, landscape architecture, religious studies and psychoanalysis. Hong-key Yoon, the editor of this book authored 9 chapters of 17 chapters in total
Neotrombicula (Neotrombicula) kwangneungensis Shin, Kim, Lee, Yoon and Shim 1990
No full textNeotrombicula (Neotrombicula) kwangneungensis Shin, Kim, Lee, Yoon and Shim, 1990: PALPublished as part of Nielsen, David H., Robbins, Richard G. & Rueda, Leopoldo M., 2021, Annotated world checklist of the Trombiculidae and Leeuwenhoekiidae (1758 - 2021) (Acari: Trombiculoidea), with notes on nomenclature, taxonomy, and distribution, pp. 1-243 in Zootaxa 4967 (1) on page 167, DOI: 10.11646/zootaxa.4967.1.1, http://zenodo.org/record/474551
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
Electronic structure of HxVO2 probed with in-situ spectroscopic ellipsometry
No full textVanadium dioxide (VO undergoes a metal-to-insulator transition (MIT) near 340K. Despite extensive studies on this material, the role of electronelectron
correlation and electron-lattice interactions in driving this MIT is still under debate. Recently, it was demonstrated that hydrogen can be reversibly
absorbed into VO thin film without destroying the lattice framework. This H-doping allows systematic control of the electron density and lattice
structure which in turn leads to a insulator (VO - metal (HVO - insulator (HVO phase modulation [Yoon
\textit{et al.}, Nat. Mat. \textbf{15}, 1113-1119 (2016)]. To better understand the phase modulation of HVO, we used \textit{in-situ}
spectroscopic ellipsometry to monitor the electronic structure during the hydrogenization process, i.e. we measured the optical conductivity of HVO while varying . Starting in the high temperature rutile metallic phase of VO, we observed a large change in the electronic
structure upon annealing in H gas at 370K: the low energy conductivity is continuously suppressed, consistent with reported DC resistivity data, while the
conductivity peaks at high energy show strong changes in energy and spectral weight. The implications of our results for the MIT in HVO will
be discussed.1
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
ubiController: Situation-aware Mobile User Interface for Ubiquitous Computing Environment
No full textBiotrickling Filtration for the Reduction of N<sub>2</sub>O Emitted during Wastewater Treatment: Results from a Long-Term In Situ Pilot-Scale Testing
No full textWastewater treatment plants (WWTPs) are a major source of N2O, a potent greenhouse gas with 300 times higher global warming potential than CO2. Several approaches have been proposed for mitigation of N2O emissions from WWTPs and have shown promising yet only site-specific results. Here, self-sustaining biotrickling filtration, an end-of-the-pipe treatment technology, was tested in situ at a full-scale WWTP under realistic operational conditions. Temporally varying untreated wastewater was used as trickling medium, and no temperature control was applied. The off-gas from the covered WWTP aerated section was conveyed through the pilot-scale reactor, and an average removal efficiency of 57.9 ± 29.1% was achieved during 165 days of operation despite the generally low and largely fluctuating influent N2O concentrations (ranging between 4.8 and 96.4 ppmv). For the following 60-day period, the continuously operated reactor system removed 43.0 ± 21.2% of the periodically augmented N2O, exhibiting elimination capacities as high as 5.25 g N2O m-3·h-1. Additionally, the bench-scale experiments performed abreast corroborated the resilience of the system to short-term N2O starvations. Our results corroborate the feasibility of biotrickling filtration for mitigating N2O emitted from WWTPs and demonstrate its robustness toward suboptimal field operating conditions and N2O starvation, as also supported by analyses of the microbial compositions and nosZ gene profiles.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.Sanitary Engineerin
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