1,720,955 research outputs found
On the operating characteristics of queuing system for an NNPC mega station in Nigeria
Get PDFPaper presented at the 5th Strathmore International Mathematics Conference (SIMC 2019), 12 - 16 August 2019, Strathmore University, Nairobi, KenyaIn this work, an understanding is sought of Queuing characteristics at an NNPC Mega
station in Nigeria when petrol is easily available so as to compare with the queuing
characteristics when there is petrol scarcity which is a recurring decimal in the country.
The Mega station with queuing discipline of First-In First-Out, a service mechanism of
single-queue multiple-channels and a system capacity of an infinite source has distinct
operating characteristic of traffic intensity being 0.77. Further analysis of the queuing
characteristics revealed that, the average number of vehicles in queue is from 2 to 3 while
the average time a vehicle spends in queue is 1.58 minutes. The probability of vehicle
queuing on arrival is 0.5993 while there is a 0.4007 probability that a vehicle may not
queue on arrival. It was concluded that with 1.8 minutes, a vehicle spends more time in
service than on the queue and since the number of vehicles on the queue is < the number
of active servers, there is no queue at NNPC Mega station Minna when there is no fuel
scarcity country.Department of Mathematics, Federal University of Technology Minoa, Nigeria.
Department of Mathematics, Federal Polytechnic Bida, Nigeria
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
RICE PRODUCTION GOAL PRIORITIZATION IN NORTH-EAST NIGERIA: THE ANALYTIC HIERARCHY PROCESS (AHP) APPROACH
Get PDFThis study applies the Analytic Hierarchy Process (AHP) to prioritize key goals for rice production in north-east Nigeria, aiming to provide insights into resource allocation for enhanced productivity. The results indicate that the Labour and Seed goal is the highest priority, with a score of 0.4460, reflecting its critical role in optimizing production. The Yield goal follows with a score of 0.3150, signifying its substantial impact on overall output. Conversely, the Budget goal (0.1176) and the Chemical goal (0.0673) are ranked as less critical. A consistency ratio of 0.03973 confirms a reliable level of consistency in the pairwise comparisons, adding robustness to the prioritization results. These findings suggest that stakeholders should focus primarily on improving labour and seed inputs to maximize efficiency in rice production. Emphasis on these resources aligns with previous research underscoring the influence of labour and seed quality on crop productivity. In contrast, budget and chemical inputs are deemed secondary priorities. By concentrating efforts on labour and seed optimization, sustainable and profitable rice farming practices can be promoted, ultimately benefiting regional agricultural outcomes
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