1,720,953 research outputs found
A Queuing-Based Supply Chain Model With Fuzzy Theory For Multiproduct Items Under Steady-State Probability Distribution
Get PDFWe proposed a sustainable queuing-based supply chain model with a steady-state probability distribution for multiproduct items in wetland area under a fuzzy environment. In this proposed model, the manufacturer produces multiproduct items as demanded by several retailers, and after completing the production process, different items are placed in other warehouses. The rent of warehouses varies occasionally and is temporary. Some warehouses are built with advanced facilities and have a low steady-state probability distribution. Due to varying holding costs, we considered the holding cost imprecise and treated it as a triangular fuzzy number. The total fuzzy cost is defuzzified with the help of the centroid method. Each product has a different backorder cost due to needing more items. We created a linear fuzzy cost function by adding the costs associated with the shipment, back ordering, and fuzzy holding. The theory of the proposed model is managed with FCFS, GI/G/1 queue because, during manufacturing, the manufacturer sets a setup time for each product, and multiple products do not overlap during the production of items and switch to the output of another. Finally, we develop the proposed model to analyse the logistic process to a three-echelon inventory model and compare the total fuzzy cost with the total cost without a fuzzy environment, termed a crisp model. Lastly, we have taken a numerical example to justify the proposed model. We aim to know about the effect of fuzzy on the total fuzzy cost as per assumptions, and we included the sensitivity analysis part
Introduction: Our proposed model solves some problems during manufacturing and production under fuzzy environment for multi-product where backorders are allowed. Some problems are;
What is the minimum inventory cost during production and manufacturing for multi-product? Where the holding cost varies according to variation of demand. Present study tried to nullify imprecise nature of the holding cost by using centroid method.
When the rate of demand of products increases or decreases the companies of production or manufacturing for the multi-product may be loss or profit and in this situation, our proposed model is very helpful to control the variations of costs by using Steady-state probability distribution.
Almost, queuing-based supply chain model for multi-product are considered fixed holding cost and calculated inventory cost but our proposed model calculated fuzzy minimum total inventory cost when the holding cost is taken as fuzzy holding cost.
Objectives: The highlights of this proposed model are : (i) Impact of inventory inputs on the total inventory cost and the decision variables. (ii)Impact of fuzzy inputs on the decision variables and total inventory cost for the supply chain. (iii) Comparison of total inventory cost with and without a fuzzy environment. (iv) Our proposed model is more applicable and usable and is presented using mathematical effects. (v) The conclusion section is also presented, in which more results are explained, and future work is presented to improve.
Methods: The task of the proposed work is presented in Figure 1. The rest part of this manuscript is structured in section/subsections. Subsection 1.2 covers the research gap and contributions of the proposed study. Section 2 presents the basic definitions for the development of the proposed study. Section 3 explains the formulation of proposed model and numerical examples with discussion. Section 4 reveals that about the sensitivity analysis and results discussion. Section 5 shows the managerial application and social implication. Further, Section 6 explains the conclusions and future scope of the proposed study.
Results: we analysed that when applying fuzzy concepts to the holding cost of the inventory in such cases, the total cost is affected, and we get the best-optimised values through fuzzy concepts compared to crisp modelling concepts. From the above discussion, it is clear that the total cost calculated using fuzzy holding cost is better than the cost calculated without fuzzy holding.
Conclusions: we concluded that we get the optimum results when we take the holding cost as imprecise, treat it as a fuzzy triangular number, and then find the total fuzzy cost. In the proposed model, we obtained the warehouses\u27 lead time, fill rate, and stock-out probability performance
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
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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