1,720,968 research outputs found
Wind energy in Poland – History, current state, surveys, Renewable Energy Sources Act, SWOT analysis
Get PDFThe history, current state and prospects for the development of the wind power sector in Poland have been presented. Poland has a long tradition of using wooden windmills, mainly post mills for economic purposes. Basing on the data of the Institute of Meteorology and Water Management, the speed of wind was calculated in Poland at a height of 100 m. The highest wind speed in Poland is noted in the northern part, the central part and, most of all, in the south-western part. In the December 2015 there were 1016 wind installations in Poland of total power of 5100 MW in Poland. There are also 37 wind farms. At the largest farm – Margonin – there are 60 wind turbines in operation, each of power of 2 MW. The new formal and legal framework for the wind power sector in Poland was described in relation to the new Renewable Energy Sources Act (RES Act). The new regulations on funding the wind power sector; that is, an auction system, were presented. The outcomes of the sociometric surveys conducted among investors were described. The SWOT analysis of the wind power sector in Poland was presented. The three scenarios of the development of the wind power sector in Poland were described.Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Polan
Technical potential and possibilities of use of utilizationbiogas on the example of warmuńsko-mazurskie voivodeship
Get PDFPreprint artykułu, który ukazał się w czasopiśmie: Rynek Energii (ISSN: 1425-5960), nr 4 (131), 2017, s. 56-62.
Rozwój technologii biogazu w województwie warmińsko-mazurskim.Ze względu na warunki klimatyczne i znaczną odległość od elektrowni węglowych, w województwie warmińsko-mazurskim obserwuje się częste przerwy w dostawach prądu. Jednym z rozwiązań jest budowa biogazowni utylizacyjnych. Obliczono, że potencjał techniczny biogazu utylizacyjnego wynosi 102,9 mln m3 rocznie. Ilość ta pozwoliłaby pokryć ponad 5,5% zapotrzebowania województwa na energię elektryczną oraz 8,2% zapotrzebowania województwa na ciepło. Wykorzystanie biogazu jako paliwa w samochodach osobowych pozwoliłoby na przejechanie w ciągu rokuśrednio904 mln km (biometan) bądź 948 mln km (prąd). Rozwój biogazowni utylizacyjnych i zakładów z nimi związanych spowoduje ożywienie gospodarcze regionu, zwiększając liczbę miejsc pracy w innych sektorach gospodarkiUniwersytet Mikołaja Kopernika
Management of By-Product Created by Lye-Sodium Brine Purification Method Using Carbonization
Get PDFThe article presents carbonization as a method of waste management from the brine sodium-lime method. It was compared with the previously obtained results for the lye-sodium one. Within it, the fltration and washing times were contrasted for treated and non-carbonised samples. For this aim potentiometric titration analysis was used to determine the precipitation's basic components and by-product brine. Scanning electron microscope with energy dispersive X-ray spectrum and diffractographic analysis were used for morphology analysis what allowed to determine the tested samples' composition. It was found that despite significant differences in the time of washing and filtration, the time of these processes is shortened after the suspension has been exposed to carbon dioxide. In both cases the composition allows the waste brine to be recycled to the purifcation processes and the mixture of calcium and magnesium compounds become alternative raw material. It turned out that in both methods it is possible to utilize the suspension formed.Badania statutowe
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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