1,720,974 research outputs found
sj-docx-1-pie-10.1177_09544089221132988 - Supplemental material for Analysis of the effects of lubricating oil viscosity and engine speed on piston-cylinder liner frictions in a single cylinder HCCI engine by GT-SUITE program
No full textSupplemental material, sj-docx-1-pie-10.1177_09544089221132988 for Analysis of the effects of lubricating oil viscosity and engine speed on piston-cylinder liner frictions in a single cylinder HCCI engine by GT-SUITE program by M. Akif Kunt, Alper Calam and Haluk Gunes in Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</p
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
Fuzel yağının buji ile ateşlemeli bir motorda yakıt karışımı olarak kullanılmasının motor performansı ve emisyonlara etkisinin incelenmesi
No full textArtan enerji ihtiyacı ve çevre kirliliği nedeniyle, buji ile ateşlemeli motorlarda etanol, metanol, doğal gaz, hidrojen ve LPG gibi alternatif yakıtlar kullanılmaktadır. Oktan sayısının yüksek olması ve biyokütle kaynaklardan üretilmesi nedeniyle alkoller alternatif yakıtlar arasında önemli bir yere sahiptir. Bu çalışmada etil alkol üretiminde yan ürün olarak elde edilen ve Türkiye'de değerlendirilmeyen fuzel yağı ile kurşunsuz benzin karışımlarının (F5, F10, F20, F30 ve F50) buji ile ateşlemeli bir motorda motor performansına ve egzoz emisyonlarına etkisi deneysel olarak incelenmiştir. Deneyler dört zamanlı, tek silindirli, enjeksiyonlu ve buji ile ateşlemeli Hydra marka motorda gerçekleştirilmiştir. Kurşunsuz benzin-fuzel yağı karışımlarının etkilerini ve farklı motor çalışma parametrelerindeki değişimleri değerlendirebilmek için değişik gaz kelebek açıklıkları, motor hızları ve ateşleme avanslarında deneyler yapılmıştır. Değişik motor hızlarında ve maksimum motor momentini veren ateşleme zamanında yapılan deneylerde, fuzel yağı ilavesi ile motor momentinde artış olmuş ve en yüksek artış F10 yakıtı ile elde edilmiştir. Aynı deney şartlarında tüm yakıtlarda termik verim değerleri birbirine yakın elde edilmiştir. Bütün motor hızlarında ve farklı ateşleme avanslarında gerçekleştirilen deneylerde özgül yakıt tüketimi, karışımdaki fuzel yağı miktarına bağlı olarak artış göstermiştir. En yüksek artış F50 yakıtında elde edilmiştir. Maksimum motor momentini veren ateşleme zamanında, farklı yük ve motor hızlarında gerçekleştirilen deneylerde termik verim, karışımdaki fuzel yağı miktarına bağlı olarak artış göstermiş ve en yüksek artış F50 yakıtıyla elde edilmiştir. Farklı motor devri ve ateşleme avanslarında HC ve CO emisyonları kurşunsuz benzine göre diğer tüm yakıtlarda artış göstermiştir. NOx emisyonları motor devrine ve karşımlardaki fuzel yağı miktarına bağlı olarak azalma göstermiştir. Maksimum motor momentini veren motor devrinde ve farklı ateşleme avanslarında gerçekleştirilen deneylerde kurşunsuz benzine göre tüm yakıtlarda NOx emisyonları azalmıştır.Due to the increasing energy demand and environmental pollution, alternative fuels such as ethanol, methanol, natural gas, hydrogen and LPG used in spark ignition engines. Alcohols have an important place in alternative fuels because of their's high octane numbers and production from biomass sources. In this study, in a spark ignition engine unleaded gasoline and fusel oil, that is obtained by product of production of ethyl alcohol and don't evaluated in Turkey, blends' (F5, F10, F20, F30 ve F50) effects on engine performance and exhaust emissions has investigated experimentally. Experimental works have performed on four stroke, single cylinder, fuel injection and spark ignition Hydra engine. To evaluate effects of unleaded gasoline-fusel oil blends and changes in different engine operating parameters, experiments have conducted different throttle openings, engine speeds and ignition advances. The engine torque has increased by the addition of fusel oil in different engine speeds and maximum engine torque advance experiments and the highest torque increase has obtaines with the F10 fuel. At the same experimental conditions the thermal efficiency values have obtained close to each other. At the all engine speeds and different ignition advance experiments specific fuel consumption has increaseddepending on amaoun of oil in the mixture. The highest increase has obtained in F50 fuel. At the maximum engine torque advance, different loads and engine speeds experiments thermal efficiency has increased depending on the amount of oil in the mixture and maximum increase has obtained with F50 fuel. HC and CO emissions has increased all blends according to unleaded gasoline at different engine speeds and ignition advances. NOx emissions has increased depending on engine speed and amount of fusel oil in the blends. At the maximum engine torque and different ignition advance experiments NOx emissions had reduced according to unleaded gasoline
Atık Kızartma Yağı Biyodizeliyle Çalışan Direkt Enjeksiyonlu Bir Dizel Motorun Yanma Performans ve Emisyon Özellikleri
No full textDispelling 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
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