Judul: Ground Level Ozone Measurement Device Design with Internet of Things Based
Abstrak: Pencemaran udara merupakan risiko gangguan kesehatan terbesar di dunia. Namun jumlah Stasiun Pemantauan Kualitas Udara Ambien (SPKUA) di Indonesia masih terbatas, sehingga menyebabkan pemantauan kualitas udara masih belum optimal. Kualitas udara di Indonesia digambarkan dengan Indeks Status Pencemaran Udara (ISPU). Ozon merupakan salah satu parameter ISPU yang memiliki dampak buruk bahkan saat ISPU berkategori baik dan termasuk parameter dengan intensitas tertinggi terbanyak pada SPKUA. Penelitian ini bertujuan membuat alat pemantauan konsentrasi ozon udara ambien yang mengirim data melalui jaringan nirkabel dengan komponen yang ekonomis. Penelitian ini menggunakan sensor MQ131, sensor DHT22, mikrokontroler STM32 Blue Pill, dan modul Lora. Alat dilengkapi catu daya, pelindung alat, dan juga dapat menampilkan hasil pemantauan yang memberikan gambaran dan informasi tambahan terkait kualitas udara lokasi pemantauan pada website. Berdasarkan pengujian alat yang dilakukan, diketahui bahwa pada lokasi pengujian rata-rata kadar ozon udara ambien adalah 20,33 µg/m3 dengan rata-rata persen kesalahan 2,34%, yaitu bernilai ISPU 8 dan status ISPU berkategori baik., Air pollution is the world's largest health problem. However, air quality monitoring in Indonesia is still not optimal due to the lack of ambient air quality monitoring stations. Air quality in Indonesia is explained by the air pollution status index, abbreviated as ISPU. Ozone is one of the parameters of ISPU that adversely affects even when ISPU is in a good category and one of the highest intensity parameters at the ambient air quality monitoring stations. This research aims to build an ambient air ozone concentration system that sends data over a wireless network with components that are capable, but cheaper. This research uses MQ131 sensor, DHT22 sensor, STM32 Blue Pill microcontroller and Lora module. Equipped with a power supply, casing, and displaying monitoring results that provide an overview and additional information related to air quality of the monitoring location on the website. Based on the device testing, it is known that at the monitoring location the average ambient air ozone level is 20.33 µg/m3 with an average percent of error is 2.34%, which is an ISPU value of 8 and the ISPU status is categorized as good.
Keyword: air quality, internet of things, ozone, website, wireless sensor network

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: 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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