1,720,959 research outputs found
sj-docx-1-dhj-10.1177_20552076231183544 - Supplemental material for Patients, carers and healthcare providers’ perspectives on a patient-owned surveillance system for diabetic foot ulcer care: A qualitative study
No full textSupplemental material, sj-docx-1-dhj-10.1177_20552076231183544 for Patients, carers and healthcare providers’ perspectives on a patient-owned surveillance system for diabetic foot ulcer care: A qualitative study by Zhiwen Joseph Lo, Bryan Chong, Elaine Tan, Desmond Ooi, Huiling Liew, Wai Han Hoi, Yuan Teng Cho, Kyle Wu, Naren Kumar Surendra, Maleyka Mammadova, Audrey Nah, Victor Goh and Josip Car in DIGITAL HEALTH</p
ABOUT DARSY’S LAW DURING FLUIDS MOTION IN THE MICRO-CRACKED CHANNELS
Get PDFFirstly it has been experimentally revealed that during fluid motion in the micro-cracked channel and in the equivalent porous medium an unknown additional resistance arises in the scientific technical literature that is the “microcrack-fluid” effect. It has been demonstrated that the determined “microcrack-fluid” effect is the cause of linear Darcy’s law violation in the micro-cracked channels.
It has been revealed in the work that during fluids moving in the microcracked channel there is a critical size of crack for the homogeneous fluid (water, viscous and anomalous fluids) and a hydrodynamic effect as so-called “microcrack-fluid” is manifested.
So for the first time we determined the critical value of opening − hcr on the basis of experimental investigations in cracks. It was found that at h<hcr the anomalous properties are manifested for viscous fluids and rheological parameters are increased for anomalous fluids, and at h≥hcr these effects disappear. It has been established that the reason of the anomalous behavior of fluids in the microcrack with h<hcr opening is the effect occurred in the “microcrack-fluid” system.
It is shown that microcrack with certain opening can be considered as a model but the ultra-low permeable porous medium is nature.
It has been determined that the critical value of the Reynolds number calculated for viscous and abnormal fluids in the microcracked channel and in the equivalent porous medium in the microcrack is Re<1.
The new fact about Darcy’s law violation during fluids flow in microcrack with h<hcr opening has been experimentally revealed i.e. micro-cracked effect of “microcrack-fluid” system is a cause of Darcy’s law violation.
It is recommended to taking into consideration the microcracked effect in the “fluid-medium” system for regulation and creation of the new technical and technological processes in the different branches of industr
Дослідження гідродинамічних особливостей руху рідин у мікротрещинних каналах
No full textThe object of the work is an experimental study of the features of the movement of viscous and anomalous fluids in plane-parallel and plane-radial microcracks.
In the work, the unexplored problem of hydrodynamic features of fluid motion in the considered objects – channels is solved.
It was experimentally revealed that various fluids, when moving in microcracked channels with micron-sized openings, acquire new mechanical properties, which differ from their properties in the usual condition. The effect in the “microcrack-fluid” system is the reason for changes in the mechanical properties of fluids in microcracks and equivalent ultra-low-permeable porous media. It was revealed that when a one-parameter viscous fluid moves in a crack with an opening h<hcr, it becomes two-parameter, i.e. behaves like an anomalous fluid, and when moving with an opening h≥hcr, it restores one-parameter properties, and the anomalous fluid behaves like an anomalous fluid but increases the rheological constants of the model.
The results of the research require taking into consideration the crack effect in estimating the parameters of the technological processes system and technical devices “microcrack-fluid”. Machines and mechanisms must additionally have nodes that would prevent this effect. This is of scientific and practical importance for various fields of the industry, machine manufacturing, instrument manufacturing, chemical technology and medicine.Об'єктом роботи є експериментальне дослідження особливостей руху в'язких та аномальних рідин у плоскопаралельних і плоскорадіальних мікротріщинах.
У роботі вирішується задача вивчення гідродинамічних особливостей руху рідини в розглянутих об'єктах – каналах.
Експериментально встановлено, що різні рідини під час руху в мікротріщинних каналах з розкритістю мікронного розміру набувають нових механічних властивостей, що відрізняються від їхніх властивостей у звичайному стані. Причиною зміни механічних властивостей рідин в мікротріщинах та еквівалентних наднизькопроникних пористих середовищах є ефект системи "мікротріщина-рідина". Виявлено, що під час руху в'язкої однопараметричної рідини в тріщині з розкритістю h<hcr вона стає двопараметричною, тобто поводиться як аномальна, а під час руху з розкритістю h≥hcr відновлює однопараметричні властивості, для аномальних рідин реологічні параметри посилюються.
Результати дослідження вимагають врахування тріщинного ефекту при оцінці параметрів системи технологічних процесів і технічних пристроїв "мікротріщина-рідина". Машини та механізми повинні додатково мати вузли, що запобігають даному ефекту, що має науково-практичне значення для різних галузей промисловості, машинобудування, приладобудування, хімічної технології та медицини
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
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