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Correction: Halil, B.; Gökhan, S. Numerical Investigation of the Effect of Variable Baffle Spacing on the Thermal Performance of a Shell and Tube Heat Exchanger. Energies 2017, 10, 1156
No full textThe authors wish to make the following corrections to this paper [1][...
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Experimental investigation of the effects of add-on fan radiators on heat output and indoor air temperature
No full textBu tez çalışmasında, iç ortam ısıtma ihtiyacının karşılanmasında fanlı radyatörlerin geleneksel panel radyatörlere göre ısıtma performansları deneysel olarak incelenmiştir. Deneysel çalışmada 600*1000 mm boyutlarında ve TBSE (Top Bottom Same End) bağlantı tipine sahip Tip-22 PCCP (Panel-Convector-Convector-Panel) panel radyatör kullanılmıştır. Fan ünitesi ise 80 mm çap değerine sahip 12 adet DC (Doğru Akım) motor tahrikli fanın seri bir şekilde bağlanmasıyla oluşturulmuştur. Deneyler 14°C iç ortam sıcaklık değerinde başlatılmıştır. Ayrıca deneylerde panel radyatör içerisinde dolaşan suyun debisi ise 0,0278 kg/s'de sabit tutulmuştur. Panel radyatör giriş sıcaklık değeri ise 40°C, 45°C ve 50°C olarak belirlenmiştir. Fanlı radyatörlerle gerçekleştirilen deneylerde ise radyatörün üst ızgara bölgesindeki hava hızı 0,5 m/s'lik artışlarla 0,5-2,5 m/s aralığında değişim gösterecek şekilde ayarlanmıştır. Doğal taşınımla ısı transfer oranı da önemli ölçüde azalmış ve tüm fan hızı ve giriş sıcaklık koşullarında zorlanmış taşınım daha baskın hale gelmiştir. 40°C giriş sıcaklığı koşulunda, geleneksel panel radyatörden ısı çıkışı 337 W iken en düşük fan hızına sahip fanlı radyatörden ise toplam ısı çıkışı yaklaşık 616 W olmuştur. Fan hızı maksimum seviyeye çıktığında ise bu değer yaklaşık 1200 W'a yükselmiştir. Genel olarak, fan hızının artmasıyla doğal taşınım ve ışınım yoluyla ısı transfer oranları azalsa da bu azalmanın zorlanmış taşınımla telafi edilmesi nedeniyle radyatörden toplam ısı çıkışının daha fazla arttığı tespit edilmiştir.İngilizce Özet (Abstract) In this thesis study, the heating performance of add-on fan radiators compared to conventional panel radiators in meeting the indoor heating demand was experimentally examined. In the experimental study, a Type-22 PCCP (Panel-Convector-Convector-Panel) panel radiator with dimensions of 600*1000 mm and TBSE (Top Bottom Same End) connection type was used. The fan unit is formed by serially connecting 12 DC (Direct Current) motor driven fans with a diameter of 80 mm. The experiments were started at an indoor temperature of 14°C. In addition, in the experiments, the mass flow rate of water circulating in the panel radiator was kept constant at 0.0278 kg/s. The panel radiator inlet temperature value is determined as 40°C, 45°C and 50°C. In the experiments carried out with add-on fan radiators, the air speed in the upper grille area of the radiator was adjusted to vary between 0.5-2.5 m/s in 0.5 m/s increments. The heat transfer rate by natural convection also decreased significantly and forced convection became more dominant under all fan speed and inlet temperature conditions. Under the condition of 40°C inlet temperature, the heat output from the conventional panel radiator was 337 W, while the total heat output from the add-on fan radiator with the lowest fan speed was approximately 616 W. When the fan speed increased to the maximum level, this value increased to approximately 1200 W. In general, although the heat transfer rates through natural convection and radiation decrease as the fan speed increases, it has been determined that the total heat output from the radiator increases more because this decrease is compensated by forced convection
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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