1,720,954 research outputs found
Determination of a cell tower site location to be established in Perlis by using spatial analyst / Hasmida Muhamad
Get PDFThe advent of wireless networking is changing our lives drastically. Mobile telecommunications emerged as a technical breakthrough enabling access to personal and other resources, computers, computing, and connectivity, through effortless plug-in and play, at any location and at any time. The development of wireless mobile networks also requires transmission availability, collection of routing systems, and the best site for cells towers. This research aims to determine the best cell tower site by using Geographic Information System (GIS) spatial analyst as a tool. The application of the distribution could be achieved by applying the Shuttle Radar Topography Mission (SRTM) to the picture of the region that has to be covered by three other parameters which is the location of existing tower, road network and towns. This research applied the technique of spatial association rules on the parameters to select the best location for the cell tower placement. From that the plan would attempt to reduce the number of towers built, make the position of the tower feasible, and provide maximum coverage of the area. The result of this study is a weighted map that shows five different suitability for a new cell towers sites around the study area. This map can be used by any Telecommunication company in Malaysia such as Celcom, Digi, Maxis and etc to locate the most suitable location for a new telecommunication tower
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
Spatial distribution of water quality in relation to phytoplankton abundance of Selat Tuba, Langkawi / Hasmida Muhamad
Get PDFPhytoplankton is a microscopic marine alga that is mostly buoyant and floats in the upper part of the water body. Despite its size, it plays a vital role in sustaining the biological clock of marine life by serving as one of the primary providers of food and oxygen. However, their abundance greatly depends on the water quality of their habitat. The structure of the phytoplankton population changes in response to changes in water quality and other regulatory factors, which may or may not have an impact on the animal community and may result in a general loss of biodiversity, including a decline in fish production. Thus, this study aims to assess the water quality parameters (WQP) at Selat Tuba River by i) evaluating the spatial interpolation (IDW and Kriging models) for WQP estimation, ii) establishing a correlation between WQP and phytoplankton abundance, and iii) establishing regression equations for phytoplankton abundance. The WQPs involved are salinity, dissolved oxygen, Secchi disc depth, temperature (temp), and pH. The WQP and phytoplankton abundance were collected by in-situ sampling and assessed by laboratory experiments. The in-situ water samplings consist of 113 points and about 36 points for phytoplankton that were collected in December 2020 and December 2021. For the laboratory experiment, each individual phytoplankton was calculated in every 1 ml of water, and the total phytoplankton abundance was calculated in ind/mg3 units. To reduce uncertainty errors in the WQP, a Monte Carlo uncertainty analysis has been conducted. Spatial interpolation (IDW and Kriging models) was applied and tested; 70% and 30% of the water sampling data were used for model development and verification, respectively. The root means square error (RMSE) and mean absolute error (MAE) are applied to measure the goodness of fit of the regression equation for WQP estimation. The study found that pH and DO have the strongest correlation (0.948), while salinity and temperature have the lowest correlation (0.368). The IDW provides more robust models to estimate DO, pH, and temperature, with RMSE values of 0.517, 0.084, and 0.450, respectively. The optimal regression model for phytoplankton abundance estimation has an RMSE of 11.451 and an R2 of 0.3740. This study contributes to establishing the final regressions that can be employed to estimate water quality and phytoplankton abundance at the mangrove area as well as support the fishing industry's economy. Overall, the relationship between each WQP and phytoplankton had been established, the IDW interpolation model is proven to serve a more stable model compared to Kriging, and lastly the regressions for WQP and phytoplankton estimation has been established
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
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