Judul: Comparative Analysis of MQTT and HTTP Protocol Performance on Air Quality Monitoring IoT Devices.
Abstrak: Kegiatan industri dan transportasi menghasilkan peningkatan konsentrasi materi partikulat yang berbahaya bagi kesehatan masyarakat. Pentingnya memasang alat pemantau udara untuk memantau dan memberikan data yang dibutuhkan untuk mengambil tindakan preventif untuk melindungi kesehatan masyarakat. Dalam upaya menjaga lingkungan, penting untuk membangun alat yang hemat sumber daya. Penelitian ini bertujuan membangun alat pemantau kualitas udara serta analisis konsumsi daya yang digunakan alat. Menggunakan konsep Internet of Things dan protokol komunikasi Message Queuing Telemetry Transport serta Hypertext Transfer Protocol untuk mengirim data, juga menggunakan sensor DSM501A kualitas udara dapat dipantau. Hasil penelitian ini berhasil membangun alat pemantauan kualitas udara menggunakan Internet of Things, mulai dari perancangan alat dan pengiriman data. Selain itu, dari pengujian protokol, QoS 0 memiliki delay dan penggunaan paling rendah baik pada jaringan WiFi dan GSM. Delay sebesar 238 ms dan daya 77,282 mA pada GSM, lalu delay 35 ms dan daya 71,641 mA pada WiFi. Pada semua protokol, semua data yang dikirim tidak menunjukkan adanya packet loss., Industrial and transportation activities result in increased concentrations of particulate matter that are harmful to public health. It is important to install air monitoring devices to monitor and provide data needed to take preventive measures to protect public health. In an effort to protect the environment, it is important to build resource-efficient devices. This research aims to build an air quality monitoring device and analyze the power consumption used by the device. Using the Internet of Things concept as well as Message Queuing Telemetry Transport and Hypertext Transfer Protocol, air quality can be monitored through sensor called DSM501A. The result of this study successfully built an air quality monitoring tool using Internet of Things, starting from tool design and data transmission. In addition, from both protocol testing, QoS 0 has the lowest delay and power usage on both WiFi and GSM networks. Delay of 238 milliseconds and power usage of 77,282 mA on GSM, then delay of 35 milliseconds and power usage of 71,641 mA on WiFi. In all protocols, all data sent showed no packet loss.
Keyword: HTTP, Internet of Things, MQTT, particulate matter, power consumption

Judul: Design and Development of Portable Particulate Matter Device < 2.5 µm (PM2.5) Based on Particle Counter (DSM501A)
Abstrak: Kualitas udara telah menjadi masalah kesehatan utama di seluruh dunia., Peningkatan paparan materi partikulat halus (PM2.,5) telah secara pasti dikaitkan dengan efek kesehatan yang serius seperti penyakit pernapasan, pneumonia, dan peningkatan kematian. Mengingat dampak PM2.5, diperlukan pemantauan kualitas udara secara berkala. Penelitian ini bertujuan mengembangkan perangkat portabel berbasis low-cost sensor DSM501A, yang dapat dengan mudah digunakan dan mampu menampilkan data PM2.5 secara real-time dan kontinu melalui jaringan localhost. Tahap perancangan alat ukur PM2.5 terdiri dari proses perancangan sistem pengukuran, pabrikasi sistem elektronik dan akusisi data kemudian melakukan integrasi sistem localhost lalu melakukan uji kinerja alat. Alat tersebut telah diuji dengan beberapa perlakuan berbeda yaitu pengambilan data interval 30 detik selama tiga hari untuk pengukuran indoor dan outdoor. Pengukuran indoor menunjukan pola diurnal peningkatan konsentrasi PM2.5 di pagi hari dengan nilai maksimum 1.5 µg/m3, serta peningkatan di malam hari mencapai 2.2 µg/m3. Pengukuran outdoor menunjukan pola diurnal peningkatan konsentrasi PM2.5 terjadi di pagi hari hingga siang hari dengan nilai maksimum mencapai 7.4 µg/m3. Pengukuran dengan kondisi terisolasi tidak menunjukan adanya partikel terdeteksi, sedangkan pada pengukuran asap terisolasi, konsentrasi partikel bervariasi dari 15603 pcs/283mL hingga 101423 pcs/283mL dengan nilai rata-rata 28273 pcs/283mL. Alat ini mampu dengan baik merespon konsentrasi partikel PM2.5 dan memerlukan pengembangan lebih lanjut seperti kalibrasi sensor, memperhitungkan pengaruh aspek meteorologi seperti suhu, kelembaban udara, kecepatan angin dan stabilitas atmosfer yang dapat mempengaruhi konsentrasi PM2.5 di udara, dan juga dapat mempengaruhi respon sensor dalam melakukan pengukuran, Air quality has been a major health concern around the world, and increased levels of exposure to fine particulate matter < 2.5µm (PM2.5) have been definitively linked to serious health effects such as respiratory illness, pneumonia, and increased mortality. Due to the impact of PM2.5, the periodic air quality measurement is required. This research was aimed to develop a portable device based on low-cost particle counter DSM501A, easy to use and display the concentration of PM2.5 for real-time and continuous on the localhost network. The assembly process of PM2.5 device is divided into system design, electronic manufacturing system, and data acquisition, then integrates the localhost system and performs a performance test of the device. The device has been tested with several condition, at 30 second intervals for three days indoor and outdoor measurements. Indoor measurements show a diurnal pattern of increasing PM2.5 concentrations with the morning peak concentration of 1.5 µg/m3, and an increase in the night with peak of 2.2 µg/m3. Outdoor measurement indicated a diurnal pattern of PM2.5, with an increase in the morning until the afternoon with a maximum value of 7.4 µg/m3. The measurements with the isolated condition indicated that no particle detected during the measurement, while the smoke condition show the concentration varied from 15603 pcs/283mL to 101423 pcs/283mL with an average of 28273 pcs/283mL. This device is able to respond the concentration of PM2.5 particles and required a further development on sensor calibration, and consider the meteorological aspects such as temperature, humidity, wind speed and atmospheric stability that can affect the PM2.5 concentrations in the air, and furthermore affect the sensor responses.
Keyword: air quality, automation, low-cost sensor, portable device, real-time, air quality, automation, low-cost sensor, portable device, real-time

Judul: Posisi Filogenetik Kura-Kura Carettochelys Insculpta  (Reptillia: Testudinata)
Abstrak: Carettochelys insculpta is an endemic freshwater turtle of southern Papua and northern Australia. Phylogenetic position of this turtle is remain unresolved until now. Most of the research conducted show close relationships of C. insculpta and members of Trionychidae family. However, some of the research show distance between C. insculpta and members of Trionychidae family. This research is conducted to analyze phylogenetic relationship between C. insculpta and other members of Testudinata using 12S rRNA, 16S rRNA, and both gene as markers. DNA samples were obtained from three different organisms of C. insculpta. Two species used as outgroups were Alligator mississippiensis and Iguana iguana. Phylogenetic analysis was carried out using Neighbor-Joining method with Felsenstein 1981 (F81) modeltest. A polytomy tree of Testudinata was produced by using 12S rRNA gene. However, analysis using 16S rRNA and both genes as markers confirmed that C. insculpta was located between the Chelonidae and the Trionychidae family.
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