Judul: Pengembangan Sistem Pengelolaan Smart Algae Pond Berbasis Web Menggunakan Metode Prototyping
Abstrak: Sistem informasi Smart Algae Pond merupakan sistem yang telah dikembangkan oleh beberapa peneliti sebelumnya. Sistem ini diharapkan dapat membantu proses budi daya mikroalga dari jarak jauh, mulai dari proses produksi, monitoring, pemeliharaan, hingga proses pemanenan. Namun, sistem ini masih belum bisa melacak lokasi kolam dan perlu dilakukan pengembangan terhadap fitur untuk memantau data sensor secara realtime dari perangkat IoT. Penelitian ini bertujuan untuk membangun modul pelacakan kolam dan pemantauan data sensor dengan metode prototyping menggunakan framework Laravel pada sisi back-end dan framework Vue.js pada sisi front-end. Sistem yang dikembangkan pada penelitian ini sudah dilakukan pengujian dengan metode blackbox testing dan pada pengujian iterasi terakhir, sistem telah memenuhi semua kebutuhan pengguna dan sudah cukup untuk dapat digunakan., The Smart Algae Pond information system is a system that has been developed by several previous researchers. This system is expected to help the process of cultivating microalgae remotely, from the production process, monitoring, maintenance, to the harvesting process. However, this system is still unable to track pond locations and requires further feature development to monitor sensor data from IoT devices in real-time. This study aims to build a pond tracking module and sensor data monitoring using the prototyping method and using the Laravel framework on the back-end and the Vue.js framework on the front-end. The system developed in this study has been tested using the blackbox testing method and in the last iteration of testing, the system has met all user requirements and is sufficient to be used.
Keyword: Laravel, mikroalga, prototyping, Smart Algae Pond, Vue.js

Judul: Optimalisasi Backend Monitoring Kolam
Budidaya Udang Berbasis Water Quality Monitoring and Controlling System.
Abstrak: Limbah pencemar air yang memenuhi standar kualitas menjadi tujuan penting untuk meningkatkan produksi budidaya udang super intensif. Dalam upaya mengurangi beban limbah dan juga memenuhi pedoman umum pembesaran udang, maka dirancang suatu Instalasi Pengolahan Air Limbah (IPAL) menggunakan teknologi Recirculating Aquaculture System (RAS) dan pendekatan Plasma Finebubble. Teknologi ini diimplementasikan dengan menerapkan sistem pemantauan dan pengendalian (WQMCS) IoT untuk kolam budidaya udang. Penelitian sebelumnya mengembangkan aplikasi ¬backend dengan menggunakan Laravel dan dianalisa mampu dioptimalkan. Penelitian ini akan dikembangkan kembali sistem pemantauan dan pengendalian dengan menggunakan framework Yii2, kemudian membandingkan kinerjanya dengan aplikasi yang telah dibuat sebelumnya. Metode yang digunakan untuk pengembangan aplikasi adalah metode Agile Scrum dan pengukuran kinerja dilakukan dengan mengukur fungsional sistem, tingkat kesalahan, waktu respon, dan permintaan per detik. Sistem berhasil dioptimalkan dengan aktifnya semua endpoint serta mengurangi tingkat kesalahan sampai 0%, waktu rata-rata respon 34,31ms, dan 5,39 permintaan per detik lebih banyak., Waste water pollution that meets quality standards is an important goal to increase the production of super-intensive shrimp farming. In an effort to reduce the waste load and also meet the general guidelines for shrimp rearing, a Wastewater Treatment Plant (IPAL) using Recirculating Aquaculture System (RAS) technology and Plasma Finebubble approach was designed. This technology is implemented by applying an IoT monitoring and control system (WQMCS) for shrimp farming ponds. Previous research developed a backend application using Laravel and analyzed that it can be optimized. This research will redevelop the monitoring and control system using the Yii2 framework, then compare its performance with the application that has been made before The method used for application development is the Agile Scrum method and performance measurement is done by measuring system functionality, success rate, response time, and requests per second. The system was successfully optimized with all endpoints active and improved 100% success, 34.31ms average response time, and 5.39 more requests per second.
Keyword: Backend, Shrimp, WQMCS, YII2, RAS

Judul: Thermal Characteristics and Dynamics of Tropical Cyclone over Western North Pacific Ocean: A Case Study of Typhoon Songda (Chedeng) 2011
Abstrak: The frequent occasion of Tropical Cyclone (TC) over Western North Pacific (WNP) Ocean lies from 10˚N to 26˚N and 121˚E to 170˚E. Sources of TC development come from warm ocean temperature where latent heat is released during condensation processes and subsequently concentrated in the boundary layer. Relative humidity at 850-700 hPa is responsible to produce the most intense storm. Meanwhile, weak vertical wind shear between 850-200 hPa is one of the dynamical factors that lead to the development of TC. Pressure level of 850-200 hPa is chosen to minimize the thermodynamic effect in the lower troposphere. Typhoon Songda (Chedeng in the Philippines) or TSC lasted from May 18th to 30th, 2011 and strengthened into powerful Super Typhoon stage between May 24th and 27th. Long curving track and the exhibition of all sequences of TC life cycle, TSC is then considered as an ideal case of TC. The objective of the study with case of TSC is to investigate the role of thermal characteristics and dynamics on TC intensity. The research is carried out by using Advanced Research of Weather Research and Forecasting model (WRF ARW model) version 3.3. Two domains are employed in the model. The first domain situate from 02˚N to 40˚N and 118˚E to 149˚E and cover spatial resolution () of 33.1 km. The second domain situate from 09˚N to 27˚N and 119˚E to 132˚E with of 11 km. Timestep of the model () is 120 seconds. The model is supported by the following physical parameterization, i.e., Yonsei University Scheme (YSU) in the boundary layer, Kain-Fritsch scheme (KF) in the cumulus, and WRF Single-Moment 3-class scheme in the microphysics. Initial meteorological condition prior to the formation of the cyclone is generated using WRF ARW standard-release model. Sensitivity of the model output is obtained from a selected single-parameter change scenarios, namely, 10 % to 20 % decrease and increase of wind shear initial data at 850-200 hPa, and by 10 % to 20 % decrease of relative humidity initial data at 850-700 hPa. The result showed that the negative correlations between wind shear and intensity are found in wind shear scenarios. Wind shears of 10 ms-1 which lead to strengthening of the wind intensity in the early period of Typhoon development are found in wind shear scenarios. The effect of wind shear changes on wind intensity is statistically significant in the 20 % wind shear scenarios. During mature stage, weak wind intensity occurred when wind shear increase as given in the WRF standard-release and the 20 % decreasing scenario. Different situation is found in the 20 % increasing scenario where wind shear tend to weak and lead to strong wind intensity at this stage. Meanwhile, the reduction of moisture supply at 850-700 hPa resulting from 20 % decreasing relative humidity play a major role in the weakening of wind intensity and reduces mechanical energy of the cycle process as much as 300 J kg-1.
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