1,721,368 research outputs found
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
Ambiente de programação e integração para manufatura virtual “APIMV”
Get PDFThe constant industrial evolution and the variety of technologies generate an increasing
demand of qualified professionals for the flexibility of solutions related to the requirements and
problems of the companies. Therefore, a universal system of simulation to make possible
reproduction, programming, integration and control of different objects and instruments in a
computer screen is important, to form a true idea of the reality of a project, before its
implementation.
With this vision, the Center of Reference in Technology of the Information (CRTi), at
Federal University of Itajubá (UNIFEI), with support of the National Center of Research (CNPq), is
developing a system of virtual manufacturing system to simulate industrial processes. The project
can be used by institutions of education or by directed for companies, with intention to transmit the
real idea of a idealized context for an industrial system serving as base of professionals training
and support for specialists in taking of decisions in the planning of the production.
The system counts on: virtual mockups, that simulate the real world using graphical
animation based on virtual reality techniques, and an programming environment for developing the
control logic.
The programming environment is the subject of this work. It describes a standardized
software, for development of programs that use the defined by IEC61131-3. Totally integrated in
the virtual mockups for simulation of manufacturing processes, it is responsible for the
programming of control logics that command the movement of objects, sensors and actuators, in
the represented ones, thus creating a virtual reality.
Destined, initially, to the development of control logics using Ladder language, was
developed in this work a graphical tool of programming with edition resources, interpretation and
simulation of the logic based on symbols of relays and function blocks. The programming tool
developed offers a set of instructions that it allows to program the logic of functioning of a process
or of a machine with the boolean functions (And, Or, Negation), timers, counters, comparators and
arithmetical functions. This set is formed by some elements of programming, between them, the
symbols of contact of relay: normal opened and normal closed, that when adequately combined in
linkings series and parallel executes the boolean functions AND and OR respectively. Together to
viii
the functions of each element of programming, managed by an algorithm of interpretation and
management, the dynamic of screen and images (illustrative figures), that are necessary to
compose the logical relation between objects, had been created to implement the command lines.
So that an element composes the diagram, is presented a generic image according to type
of chosen component. This image can be moved in the edition space to determine the point of
attachment of the component. It settled in the screen, characteristics datas are attributed to the
component to allow its identification inside of the logic. The positioning in the screen specifies
connection points establishing the linking between the elements, while the graphical symbologies
define the behavior of the elements in the control logic.
Manipulation commands of the environment are completely graphical, activated with
buttons or tree of options. Elements of programming and lines of command can be edited, a
complete diagram or individual lines can be executed or be simulated and there is the possibility of
integration with virtual mockups of an industrial process. The variables can be recognized of the
mockup, loaded of the entailed simulator to this environment or declared by the user.
This environment is a simple software, easy of to be used and to apply, independent of
equipment or supplier, and it has the advantage of to adapt itself to any machine, therefore it is an
open software and to count on a flexible architecture. The logics implemented in it can be stored in
archive as diagrams (complete program) or logic bit (independent lines of command) in a way
chosen for the user.
It possess resources that the majority of softwares similar it does not present, as: simulator
module of entrances and exits, including the possibility of individual simulation of each line of
command; options of regulated industrial languages of programming; and the most important, it
must keeps link of communication with virtual mockups.The constant industrial evolution and the variety of technologies generate an increasing
demand of qualified professionals for the flexibility of solutions related to the requirements and
problems of the companies. Therefore, a universal system of simulation to make possible
reproduction, programming, integration and control of different objects and instruments in a
computer screen is important, to form a true idea of the reality of a project, before its
implementation.
With this vision, the Center of Reference in Technology of the Information (CRTi), at
Federal University of Itajubá (UNIFEI), with support of the National Center of Research (CNPq), is
developing a system of virtual manufacturing system to simulate industrial processes. The project
can be used by institutions of education or by directed for companies, with intention to transmit the
real idea of a idealized context for an industrial system serving as base of professionals training
and support for specialists in taking of decisions in the planning of the production.
The system counts on: virtual mockups, that simulate the real world using graphical
animation based on virtual reality techniques, and an programming environment for developing the
control logic.
The programming environment is the subject of this work. It describes a standardized
software, for development of programs that use the defined by IEC61131-3. Totally integrated in
the virtual mockups for simulation of manufacturing processes, it is responsible for the
programming of control logics that command the movement of objects, sensors and actuators, in
the represented ones, thus creating a virtual reality.
Destined, initially, to the development of control logics using Ladder language, was
developed in this work a graphical tool of programming with edition resources, interpretation and
simulation of the logic based on symbols of relays and function blocks. The programming tool
developed offers a set of instructions that it allows to program the logic of functioning of a process
or of a machine with the boolean functions (And, Or, Negation), timers, counters, comparators and
arithmetical functions. This set is formed by some elements of programming, between them, the
symbols of contact of relay: normal opened and normal closed, that when adequately combined in
linkings series and parallel executes the boolean functions AND and OR respectively. Together to
viii
the functions of each element of programming, managed by an algorithm of interpretation and
management, the dynamic of screen and images (illustrative figures), that are necessary to
compose the logical relation between objects, had been created to implement the command lines.
So that an element composes the diagram, is presented a generic image according to type
of chosen component. This image can be moved in the edition space to determine the point of
attachment of the component. It settled in the screen, characteristics datas are attributed to the
component to allow its identification inside of the logic. The positioning in the screen specifies
connection points establishing the linking between the elements, while the graphical symbologies
define the behavior of the elements in the control logic.
Manipulation commands of the environment are completely graphical, activated with
buttons or tree of options. Elements of programming and lines of command can be edited, a
complete diagram or individual lines can be executed or be simulated and there is the possibility of
integration with virtual mockups of an industrial process. The variables can be recognized of the
mockup, loaded of the entailed simulator to this environment or declared by the user.
This environment is a simple software, easy of to be used and to apply, independent of
equipment or supplier, and it has the advantage of to adapt itself to any machine, therefore it is an
open software and to count on a flexible architecture. The logics implemented in it can be stored in
archive as diagrams (complete program) or logic bit (independent lines of command) in a way
chosen for the user.
It possess resources that the majority of softwares similar it does not present, as: simulator
module of entrances and exits, including the possibility of individual simulation of each line of
command; options of regulated industrial languages of programming; and the most important, it
must keeps link of communication with virtual mockups
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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