1,720,956 research outputs found

    Comparison Analysis of MQTT and HTTP Communication Protocol IOT Based on Website Node.Js

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    Abstract—The Internet of Things is one of the technologies that is widely used in monitoring systems to get maximum results. Within the IoT infrastructure, there are devices and servers, both of which must be listed. These two devices must be connected via a communication protocol such as ZigBee, MQTT, HTTP, and so on. The selection of an appropriate and effective communication protocol is one of the most important things. According to the results of the 2018 edition of the IoT developer survey by the Eclipse Foundation, it was found that the communication protocols that are widely used in IoT systems are the MQTT protocol, which uses a publish/subscribe architecture, and the HTTP protocol, which uses a request/response architecture. This study conducted a comparative analysis of the MQTT and HTTP communication protocols on the internet of things system based on the Node.js website on the Google Cloud platform for monitoring systems for plants as a research object. Data retrieval was carried out in the morning and at night using wireshark software. It was found that the MQTT protocol had better throughput and delay values compared to the HTTP protocol, with an average MQTT throughput value of 1730 in the morning and 1899 at night. The average MQTT delay value was 0.93485406 in the morning and 0.855531576 at night. While the HTTP protocol has better packet loss and jitter values compared to the MQTT protocol, with HTTP packet loss values of 0.028% in the morning and 0.018% at night, the average value of HTTP jitter is 0.044957 in the morning and 0.014849 at nigh

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

    Rancang Bangun Sistem Administrasi Keuangan Berbasis Website Studi Kasus: MTs Al-Ittihaad Darusa’adaah Pasir Kidul

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    MTs Al-Ittihaad Darusa'adah merupakaan sebuah lembaga pendidikan yang didirikan pada tahun 1981 dengan lingkup pendidikan berbasis agama islam. sejak awal berdirinya pengelolaan administrasi keuangan di MTs belum menggunakaan sistem yang terkomputerisasi. proses pencataan transaksi pembayaraan, penginputaan keluar masuk keuangan masih dilakukan dengan manual sehingga muncul permasalaan diataranya proses pencarian data yang lama dan data yang sering hilang. berdasarkan permasalahaan yang ada maka di perlukan sebuah sistem aplikasi yang dapat melakukan penginputaan data secara terkomputerisasi sehingga dapat meminimalisir kesalahan penginputaan dan kehilangan data. penelitian ini menggunakan metode scrum dalam proses perancangan sistem dan pengujian sistem menggunakaan Blackbox Testing.

    Variations on the Author

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    “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

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    We 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

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    We 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

    Author Index

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    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We 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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