1,720,965 research outputs found
PERANCANGAN DAN REALISASI E-LOCK SYSTEM MENGGUNAKAN JARINGAN GSM
No full textAbstract
In this study has been designed an electronic security system for the door (E-Lock System). This system uses the GSM network to send access commands through short messages service (SMS). This system uses SMS, because many people have been using SMS for communication since last 10 years. The system hardware uses ATMega16 as microcontroller and wavecom module as GSM modem to transmit or receive SMS data. Passwords is used on this system to access electronic key through SMS. People who only has room access permissions can use it. Not only can access the door, E-Lock System has ability to display the history of the user access the door and able to detect human objects in the room. Object detection process is done by PIR sensor which has been integrated with this system. Many of the testing processes performed on this system, such as hardware testing, data transmission testing and integrated system testing. Test results have shown that every menu on the system can be accessed through SMS by the user. The maximum data can be displayed from history menu is limited, only the last 8 users.Abstrak
Dalam penelitian ini telah dirancang sistem keamanan elektronik untuk pintu (E-Lock System). Sistem ini menggunakan jaringan GSM untuk mengirim perintah akses melalui layanan pesan singkat (SMS). Sistem ini menggunakan SMS, karena banyak orang telah menggunakan SMS untuk komunikasi sejak 10 tahun terakhir. Perangkat keras sistem menggunakan ATMega16 sebagai modul mikrokontroler dan wavecom sebagai modem GSM untuk mengirim atau menerima data SMS. Kata sandi digunakan pada sistem ini untuk mengakses kunci elektronik melalui SMS. Orang yang hanya memiliki izin akses ruangan dapat menggunakannya. Tidak hanya dapat mengakses pintu, E-Lock System memiliki kemampuan untuk menampilkan histori pengguna akses pintu dan mampu mendeteksi objek manusia di dalam ruangan. Proses pendeteksian objek dilakukan dengan sensor PIR yang telah terintegrasi dengan sistem ini. Banyak proses pengujian yang dilakukan pada sistem ini, seperti pengujian perangkat keras, pengujian transmisi data dan pengujian sistem terintegrasi. Hasil pengujian menunjukkan bahwa setiap menu pada sistem dapat diakses melalui SMS oleh pengguna. Data maksimal yang bisa ditampilkan dari menu histori adalah terbatas, hanya 8 pengguna terakhir
EVALUASI SENSOR FIT0348 SEBAGAI ALAT UKUR POTENTIAL OF HYDROGEN (PH) LARUTAN
No full textPada penelitian ini dilakukan Evaluasi pada sensor pH FIT0348 sebagai alat ukur pH berbasis mikrokontroler. Evaluasi ini dilakukan untuk mengetahui seberapa besar tingkat akurasi, ketidakpastian dalam kalibrasi dan kenaikan pH air. Perancangan dan Impelementasi prototype sistem pemantauan pH terdiri dari sensor pH FIT0348, mikrokontroler ATmega16A, rangkaian amplifier, personal computer. Pengujian dilakukan dengan cara melakukan kalibrasi, dan pemantauan derajat keasaman larutan selama 20 jam dengan interval pengambilan data 1 jam. Larutan yang menjadi objek pengujian adalah air mineral sebanyak 500mL. Kalibrasi dilakukan pada sensor pH FIT0348, dan alat ukur PH/EC-9853. Dalam proses pengujian digunakan kertas lakmus sebagai pengukur pH untuk kisaran tertentu. Dari hasil evaluasi tersebut, diperoleh bahwa tingkat akurasi sensor pH FIT0348 adalah ±97%, pH larutan mengalami fluktuasi sebesar 0,01 hingga 0,02 setiap jamnya, ketidakpastian hasil pengukuran sensor pH adalah ±0,0026
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
No full text“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
No full textWe 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
No full textWe 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
RANCANG BANGUN SMART GROW BOX HIDROPONIK UNTUK PERTUMBUHAN TANAMAN MICROGREEN BERBASIS INTERNET OF THINGS
No full textAbstract - Smart Grow Box is a place that is used as a medium for growing microgreen plants with an indoor system. In this study, a hydroponic Smart Grow Box was designed for smartphone-based microgreen plant growth. This study aims to monitor and control the environmental parameters of microgreen plant growth in the grow box that has been made. The system is designed using the DHT22 sensor as a temperature and humidity reader and the RTC DS3231 as a time control. The output from the sensor and RTC will be processed by the ESP32 microcontroller unit which is then forwarded to the system actuators and smartphones via the internet. This system designed uses the Blynk App application which can perform monitoring and control processes remotely based on the internet of things. This Smart Grow Box can reduce air humidity up to 4.71% lower than room air humidity, can increase air humidity to 90% within 54 seconds, and can lower air temperature close to room air temperature by a difference of 0.07 ℃. Smart Grow Boxes can also increase the quality of microgreen harvests by up to 40%
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