1,720,962 research outputs found
Advanced Post-Processing Techniques for Hydrophobic and Flame-Retardant Textiles
No full textTextiles are items of everyday use, and their production occurs in huge quantities worldwide. Providing textile materials with additional protective functions can enhance safety and serve as a foundation for developing personal protective equipment. This review summarises strategies for post-production modification of textile fabrics aimed at obtaining hydrophobic and flame-resistant products. Reported methods for hydrophobization are outlined, including approaches based on surface morphology control and chemical treatment, which have been applied to create moisture-proof textiles. In addition, developments in strategies for producing flame-resistant materials are discussed, with potential applications ranging from specialised protective clothing to the enhancement of everyday garments. In this article, we demonstrate simple and safe methods for producing textiles with a contact angle of approximately 150°. We present approaches, including environmentally friendly ones, that enable the creation of cotton materials with an LOI greater than 35%
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
Modeling of Resonant-Tunneling Diodes I–V Characteristics' Kinetics Under Destabilizing Factors' Influence During Operation
No full textInkjet Printing Is a Promising Method of Dyeing Polymer Textile Materials
No full textInkjet printing is a universal method of direct application and application of various substances to the surface of materials. This technology is gaining popularity in various fields, from textile printing to microelectronics and biomedicine. In the textile industry, inkjet printing has been widely used for many years. In our approach, we systematized the main approaches to maintaining the quality of inkjet printing on various components of materials. We reported and analyzed methods for optimizing the rheological properties of paint to improve the colorimetric characteristics and color fastness on various fabrics. The paper presents surface tension and viscosity regulators, with the help of which the colorimetric indicators of the image on textiles can be improved. For each type of textile, individual modifiers were demonstrated that could most effectively improve the quality of the pattern. Particular attention was paid to the methods of modifying the surface of products, including both physical and chemical approaches. This section discusses an effective method of plasma treatment, which allows you to control the surface free energy for textile polymer materials. By controlling the surface tension of inkjet paints and the surface energy of the material, it is possible to achieve maximum adhesion, thereby significantly increasing the amount of paint per unit area of textile. Additionally, for similar purposes, the principles of chemical modification of the surface with various substances were considered. These methods enable control over the wettability of ink and adhesion to textiles of consistent composition. Additionally, we highlight the potential of thin, optically transparent polymer coatings as a promising strategy to enhance the efficiency of dyeing textile materials. The textile industry is rapidly developing, and the functionality of clothing is improving every year. Inkjet printing methods optimized for maximum accuracy and quality can serve as a significant alternative for applying images
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