1,720,984 research outputs found
UVC Sterilization Robot Application for Covid-19 Based on Wireless Communication
Full text linkIn this research, a sterilization UVC robot will be designed and implemented using wireless communication. The robot can be controlled using a platform that can move the robot and is assisted by a camera to see the condition of the environment. ESP32-CAM is used to control robot via wireless communication and video assisted. The robot has two UVC lamps installed above to form a 360-degree light coverage area. The camera is at the front and is flanked by two lights to add lighting to get good video results. External antennas are used to increase the wireless communication range. The measurement results vis Wireshark obtained a delay value of 347 ms with a throughput of 358 kb/s. This value is included in the moderate category for data communication classification
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
Antena Wideband Planar Bowtie untuk Pemanenan Energi Gelombang Televisi Elektromagnetik Terestrial
Full text linkThe process of harvesting electromagnetic energy has two important aspects, namely the antenna as a collector of electromagnetic waves and rectifiers. This paper aims to design a planar bowtie antenna that can operate on terrestrial television broadcasting frequency. Design of antennas using finite element simulation method. Based on the simulation result, the bandwitdh fraktional antenna for return loss value below -10 dB is 70,46% and fractionall bandwitdh antenna for VSWR below value 2 is 75,98. The middle frequency of the antenna is 589 MHz
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
Design of new shape printed bowtie antena for ultra high frequency partial discharge sensor in gas-insulated substations
No full textAntena Wideband Planar Bowtie untuk Pemanenan Energi Gelombang Televisi Elektromagnetik Terestrial
Full text linkThe process of harvesting electromagnetic energy has two important aspects, namely the antenna as a collector of electromagnetic waves and rectifiers. This paper aims to design a planar bowtie antenna that can operate on terrestrial television broadcasting frequency. Design of antennas using finite element simulation method. Based on the simulation result, the bandwitdh fraktional antenna for return loss value below -10 dB is 70,46% and fractionall bandwitdh antenna for VSWR below value 2 is 75,98. The middle frequency of the antenna is 589 MHz. Keywords : Harvesting Energy, Electromagnetic, Antenna, Terrestrial Television AbstrakProses pemanenan energi elektromagnetik memiliki dua aspek penting yaitu antena sebagai pengumpul gelombang elektromagnetik dan penyearah. Pada jurnal ini didisain antena bidang kupu-kupu yang dapat beroperasi pada frekuensi penyiaran televisi terestrial. Perancangan antena dilakukan menggunakan simulasi metode elemen hingga. Berdasarkan hasil simulasi didapatakan bandwitdh fraktional antena untuk nilai return loss dibawah -10 dB sebesar 70,46% dan bandwitdh fraktional antena untuk nilai VSWR dibawah 2 sebesar 75,98. Frekunsi tengah antena didapatkan sebesar 589 MHz. Kata Kunci : Pemanenan Energi, Elektromagnetik, Antena, Televisi Terestria
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