1,720,989 research outputs found
On the possibility of usingModeling and Simulation for environmental footprint in manufacturing. The case of a foundry company involved in the Green Casting Project
No full textThis paper presents a interesting industrial case in which a predicted environmental advantage was found to be ineffectual. To investigate how to address these issues, Environmental performance indicators for the company under consideration are assessed. Carbon and Environmental Footprint calculationmodels are utilized. These indicators domeasure relevant performance tomonitor, but they do not providemeaningful insights into the issues raised in the case under consideration. Modeling and simulation and/or the digital twin, are thus highlighted as potential support tools for guiding the proper decisions for effective environmental management systems. Modeling and simulation tool can then activate virtuos Green Innovation Practices that can lead businesses towards the right steps to improve their environmental performance
A Modelling and Simulation of Coarse of Action (COA) Consequences in Stability and Support Operations
No full textAlthough operations that do not include conventional warfare are not new to the military, an increasing share of military operations requires both stability and support functions. The military defines the purpose of stability operations as: “to promote and sustain regional and global stability” and the primary role of stability operations is “to meet the immediate needs of designated groups, for a limited time, until civil authorities can accomplish these tasks without military assistance.” Other major functions may include keeping armed conflicts contained and quieting domestic disturbances. This paper demonstrates the interoperability of two model-based frameworks for computer generated solutions that provide multi-sided operational evolution (coevolution) for stability and support operations (SASO): the Sheharazade SASO environment which employs a co-evolutionary genetic algorithm in modeling the dynamics of the complex multi-sided simulation for generating COAs, and the PIOVRA project (Poly-functional Intelligent Agents for Computer Generated Forces) which affords the ability to model movements and attrition in areas affected by civil disorder
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
The Vulnerability of Supply Chains as Key Factor in Supply Chain Management
No full textThe present research has as a main goal the development of decisional models and innovative operative tools, based on simulation, designed for risk and safety analysis and resilience improvement of supply chains where small and medium enterprises (SME) act and evolve
Variations on the Author
Full text link“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
Full text linkWe 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
Full text linkWe 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
- …
