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Moisture absorption and diffusivity of epoxy filled layered-structure nanocomposite
No full textThis paper studies moisture absorption and diffusivity of epoxy reinforced layered structure nanocomposites and its effect on fracture toughness. Two different types of layered fillers employed in the study were clay and graphene platelets, in which both surface layers were unmodified and modified by characterized by swelling analysis and fracture toughness measurement. The outcomes surfactant. The nanocomposites were showed that the moisture absorption and diffusivity decreased with the addition of layered fillers. It was found that the modified graphene platelets and clay outperformed the unmodified layers and neat epoxy in terms of reduction of moisture absorption and diffusivity. The modified graphene platelets reduced the moisture uptake and diffusivity about 30% and 33%, respectively compare to neat epoxy, thus indicates its outstanding performance in barrier applications. However, once the nanocomposites were swelling in the water for 5 days, it is noticed that the fracture toughness of nanocomposites were reduced significantly about 35% in average. Nevertheless, the modified graphene platelets still display the better performance compare to the other samples although there was reduction of fracture toughness
Perspektif ilmu kolonial tentang hukum Islam dan masyarakat di Tanah Melayu: Analisis terhadap karya-karya terpilih / Halim @ Ab. Halim Ismail
Get PDFKedatangan kolonial British ke Tanah Melayu telah menyumbang kepada pembinaan korpus keilmuan tentang agama dan budaya masyarakat timur. Ia boleh dinamakan sebagai ilmu kolonial. Namun begitu, pendekatan yang digunapakai oleh sarjana kolonial berasaskan paradigma euro-centric telah menghasilkan perspektif berbeza terhadap kebudayaan dan pola keagamaan masyarakat Melayu Islam di Tanah Melayu. Sehubungan itu, kajian ini dijalankan bagi mengenalpati secara khusus perspektif ilmu kolonial terhadap budaya dan hukum Islam yang diamalkan dalam masyarakat Melayu melalui karya-karya sarjana kolonial secara terpilih. Bagi mencapai objektif tersebut, kajian kualitatif ini menggunakan pendekatan perpustakaan sepenuhnya dengan merujuk karya sarjana kolonial di Tanah Melayu, misalnya karya Raffles, Wilkinson, Winstedt dan Swettenham. Karya-karya ini dianalisis secara kandungan dengan
pengenalpastian terhadap tema-tema terpilih dalam isu berkaitan dengan budaya Melayu dan hukum Islam. Hasil kajian mendapati pandangan mereka dalam korpus keilmuan yang dipanggil sebagai ilmu kolonial sarat dengan elemen negatif terhadap budaya dan masyarakat Melayu yang mana ia menjadi asas kepada pendekatan mereka sebagai duta peradaban dan ketamadunan (ambassadors of civilization) yang terbeban di bahu mereka (the white men’s burden) dalam siri penjajahan Tanah Melayu. Justeru, ilmu kolonial perlu dinilai semula agar citra positif budaya dan hukum Islam di Tanah Melayu terpelihara dengan baik
Selamat Hari Raya Aidilfitri [Kad Perayaan]
No full textKad ucapan hari raya yang diutuskan kepada Profesor Diraja Ungku Abdul Aziz daripada Dato' Dr. Abdul Halim Ismail dan keluarg
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
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