1,720,963 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
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
Assisted History Matching by Using Recursive Least Square and Discrete Cosine Transform
Get PDFHistory matching is the act of adjusting a model of a reservoir until it closely reproduces
the past behavior of a reservoir. Before the computer was invented, history matching is
done manually by trial and error method and personal judgment which only can be done
by experienced engineer. Because of these factors, manual history matching technique
consume a lot of time. Thus, this project is carried to do assisted history matching and to
determine whether Recursive least square as optimization method and Discrete cosine
transform as parameter reduction method can be combined or not.
In order to achieve the objective, a number of steps have been done. First, a synthetic
model has been built by modifying ODEH data. Two sets of permeability value have
been selected to get two data which are historical and simulated data from the model.
Then, the fluid flow equation is derived to get the forward model. Forward model is then
used to design the objective function. After objective function has been designed, DCT
is applied to the reservoir data in order to minimize the number of parameters. Next,
RLS is applied to the parameter which has been reduced to optimize the data. These
steps are repeated until the threshold value is lower than the set threshold. For this
project, RLS and DCT methods are compared with the literature review to know the
successfulness of this combination.
For the first part of final year project, the derivation of forward model has been done.
For the second part of final year project, a synthetic model has been built and objective
function has been design from the forward model. Before applying the RLS and DCT,
the illustrations of these methods need to be done to see how it work and then RLS and
DCT were applied to the reservoir data.
The outcomes at the end of this project are first two set of data is obtain from the
synthetic model which are historical and simulated data. Then algorithms for DCT and
v
RLS are proposed which can be applied to the history matching problem. From the
result, the combination of RLS and DCT are successful and can be used for history
matching purpose
STUDY ON THE CHARACTERIZATION OF SILICA SAND NANOPARTICLES-IRON BASED COMPOSITES (Fe-Si02) USING NITROGEN ATMOSPHERE AS SINTERING ENVIRONMENT
Get PDFMetal Matrix Composite has become an attractive alternative in various
applications especially in automotive and aerospace industries nowadays. Therefore,
in order to study the characterization of Silica Sand Nanoparticles-Iron Based
Composites (Fe-SiO:z) using Nitrogen atmosphere as sintering environment, samples
were fubricated by mixing pure iron with different weight percentages (5%, 10%,
15% and 20%) of silica sand nanoparticles and undergone several testing and
observation before being evaluate.
The silica sand nanoparticles-iron based composites were developed by
powder metallurgy technique and being sintered in Nitrogen atmosphere at 1100°C.
The characterization that being evaluated include physical properties (density of
green and sintered silica sand nanoparticles-iron based composites), microstructure
analysis (Optical Microscopy & FESEM), elemental composition (EDX Analysis)
and mechanical properties (micro hardness test of silica sand nanoparticles-iron based
composites).
The research shows densities were reduced from pure iron to 20wt% of silica
sand nanoparticles. However, there were increments in each density of the composite
after being sintered which at the same time improved its hardness as well. During
sintering, the microstructure also exhibits changes in porosity, pore size also pore
shape and with the high rate of atomic motion progressively (diffusion) leads to
growth of bonds between particles, shown by the microstructure analysis being
conducted.
Theoretically stated those properties will improved after sintering process
were proven and the composite with highest weight percentage of silica sand
nanoparticles (20wt%) offered the best characteristics compared to others
Dewan Bandaraya Kuala Lumpur / Muhammad Afif Abu Talib
Get PDFThe purposes of written this report is to explain about the Industrial Training. The scope of study is engineering and the various environments at Jabatan Kejuruteraan Awam Dan Pengangkutan Bandar. The importance of internship is to give exposure to the students the real situation in engineering professions. Besides, it also can build and increase positive and critical thinking when overcoming engineering problems with the suitable and rational solution. Jabatan Kejuruteraan Awam Dan Pengangkutan Bandar responsible for the road in Kuala Lumpur and the DBKL project. Every road closure, maintenance of the road and transportation including construction project will be handle by JKAPB. At JKAPB, the entire applicants for road closure need to submit their form to this department for the approval. If the applicants close the road without getting the approval, Jabatan Penguatkuasa will fine them. This seems small issue, but it is important to ensure everybody comforts and to avoid any complain from the road users. Furthermore, JKAPB also does open tender for road marking after prepared the Bill of Quantities. After that, all of the tender will be process and the contractor will be picked based on their experience with the infrastructure works. Last but not least, during the Industrial Training, students are well exposed to the real working environment and challenges in many natures of works such as in JKAPB. Through many situations and problems encountered, the students can obtained a lot of new inputs and skills which is useful under the guidance of experienced people
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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