1,720,955 research outputs found
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
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
Ambiguitas Marital Rape dalam Perundang-Undangan di Indonesia
Full text linkPerkosaan dalam perkawinan (marital rape) yang khususnya
dilakukan seorang suami terhadap istri, menjadi salah satu bentuk
perkembangan kriminalitas, sebab terdapat unsur-unsur kekerasan dalam
pemaksaan hubungan seksual. Di Indonesia, Undang-Undang Nomor 23
Tahun 2004 Tentang Penghapusan Kekerasan Dalam Rumah Tangga
menjadi salah satu payung hukum atas permasalahan ini. Namun, melihat
pada Pasal 8 peraturan tersebut tidak memiliki penjabaran atau penjelasan
lebih rinci sehingga didapatinya ketidakjelasan atau keambiguan dalam
penentuan dan perlindungan hukum terhadap tindakan pemerkosaan dalam
perkawinan. Hal ini mencakup definisi yang kurang jelas dan batasan yang
tidak memadai yang dalam hal ini dapat memengaruhi pengertian,
penegakan, dan keadilan terkait dengan kasus tersebut. Ketaksaan
semacam itu dapat memberikan celah hukum yang mempersulit
penanganan dan perlindungan korban marital rape. Hal ini bertolak
belakang dengan tujuan hadirnya sebuah peraturan berdasarkan asas
kepastian hukum.
Penelitian ini menggunakan penelitian hukum normatif dengan
memanfaatkan ketentuan peraturan perundang-undangan serta bahan
hukum lainnya berupa kepustakaan seperti halnya buku-buku, karya
ilmiah, dan laporan penelitian. Penemuan hukum dalam penelitian ini
adalah dengan metode penafsiran, yang mana menjelaskan makna rumusan
norma-norma hukum agar dapat dipahami oleh subjek pembacanya.
Hasil penelitian ini menyimpulkan bahwa pengertian marital rape
dalam UU PKDRT masih bersifat ambigu atau multitafsir. Karena
perkosaan dalam perkawinan tidak dikategorikan sebagai perkosaan
berdasarkan KUHP, seorang istri tidak dapat mengajukan pengaduan
terhadap suaminya atas dasar perkosaan. Bahkan jika memungkinkan,
kasus seperti ini akan diperlakukan dan diproses sebagai penganiyaan,
bukan pemerkosaan. Oleh karena itu, kasus marital rape di masyarakat
hanya dapat dituntut berdasarkan Pasal 351, 354, dan 356 KUH
Analisis Numerik dan Tekno-Ekonomi Pemakaian Bahan Bakar Campuran Syngas dan Natural Gas pada PLTGU
No full textPembangkit Listrik Tenaga Gas Uap (PLTGU) memiliki peran penting dalam proses transisi energi karena kemampuannya untuk menyesuaikan output daya dengan cepat. Fitur ini penting karena memungkinkan PLTGU untuk mengimbangi sifat tidak terduga dan intermitensi dari variable renewable energy (VRE), seperti energi surya atau angin. CCPP juga memiliki efisiensi yang lebih tinggi dan emisi yang lebih rendah dibandingkan Pembangkit Listrik Tenaga Uap batu bara. Meskipun begitu, CCPP menghadapi tantangan seperti keterbatasan ketersediaan gas alam dan sisa emisi gas rumah kaca yang mereka hasilkan. Alternatif bahan bakar yang ramah lingkungan, seperti bio-syngas, muncul sebagai pengganti yang layak. Karena sumber biomassa yang dapat digunakan sangat beragam, membuat bahan bakar ini berpotensi lebih handal dan berkelanjutan dibandingkan gas alam.
Penelitian ini menggunakan simulasi computational fluid dynamics (CFD) untuk meneliti kinerja pembakaran dan emisi ruang bakar turbin gas dengan campuran bio-syngas dan gas alam. Tiga jenis syngas dan empat proporsi syngas dievaluasi. Hasil menunjukkan bahwa peningkatan proporsi syngas mengurangi efisiensi pembakaran. Penurunan paling mencolok diamati pada syngas 1, di mana efisiensi pembakaran turun dari 99,21% menjadi 97,56%. Struktur nyala api bergeser ke tengah ruang bakar pada proporsi syngas yang lebih rendah dan ke sisi pada proporsi yang lebih tinggi, karena perubahan dalam laju aliran massa. Proporsi syngas yang lebih rendah meningkatkan keseragaman keluaran, sementara proporsi yang lebih tinggi meningkatkan faktor pola, yang berpotensi menjadi tidak aman untuk memasuki area turbin. Analisis emisi menunjukkan bahwa proporsi syngas yang lebih tinggi meningkatkan CO2 dan CO per heat input, sementara temperatur pembakaran yang lebih rendah mengurangi produksi NOx.
Tinjauan keekonomian menyimpulkan bahwa tanpa dibantu oleh insentif karbon, minimum kapasitas gasifier yang diperlukan untuk kelayakan investasi adalah 21925 mmbtud syngas. Break even point (BEP) terbaik yang dapat diperoleh adalah 10.39 tahun pada fasilitas produksi syngas 2 dan 10.21 tahun pada syngas 3. Di samping itu nilai insentif karbon, harga biomassa, dan capacity factor pembangkit sangat berpengaruh terhadap ketercapaian BEP.
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The transition to net-zero emissions energy is imperative, and combined cycle power plants (CCPPs) are pivotal in this shift due to their capacity to quickly adjust their power output. This feature is important because it allows CCPPs to compensate for the unpredictable and intermittent nature of variable renewable energy (VRE), such as solar or wind energy. CCPPs also boast relatively higher efficiency and lower emissions compared to coal-fired power plants. Despite these benefits, CCPPs face challenges such as the limited availability of natural gas and the residual greenhouse gas emissions they produce. Environmentally friendly fuel alternatives, such as bio-syngas, are emerging as viable replacements. The diverse sources of biomass that can be used make this fuel potentially more reliable and sustainable than natural gas.
This study used computational fluid dynamics (CFD) simulations to examine combustion performance and emissions of gas turbine combustion chambers with bio-syngas and natural gas mixtures. Three types of syngas and four syngas proportions were evaluated. Results show that increasing syngas proportion reduces combustion efficiency. The most notable decrease is observed in syngas 1, where the combustion efficiency drops from 99.21% to 97.56%. Flame structure shifts to the chamber center at lower syngas proportions and to the sides at higher proportions, due to changes in mass flow rate. Lower syngas proportions enhance outlet uniformity, while higher proportions increase the pattern factor, potentially becoming unsafe for turbine entry. Emissions analysis indicates that higher syngas proportions increase CO2 and CO per heat input, while lower combustion temperatures reduce NOx production.
The economic review concludes that without the aid of carbon incentives, the minimum gasifier capacity required for investment feasibility is 21,925 mmbtud syngas. The best break-even point (BEP) that can be achieved is 10.39 years at syngas production facility 2 and 10.21 years at syngas 3. Additionally, the value of carbon incentives, biomass prices, and the plant's capacity factor significantly affect the achievement of BEP
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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