Judul: Sistem Pengendalian Combine Harvester Tanpa Awak Untuk Lahan Sawah
Abstrak: Penelitian ini merupakan penelitian pengembangan sistem pengendalian combine harvester otonom. Sistem kemudi two-row head-feeding combine harvester yang dikendalikan menggunakan operator dimodifikai sehingga menjadi mesin yang dapat beroperasi sendiri mengikuti lintasan pola kerja yang telah ditentukan. Akurasi sistem pengendalian yang tinggi diharapkan mampu memanen dengan baik dengan jumlah tanaman padi yang tidak terpanen sedikit. Kegiatan penelitian dilakukan dalam beberapa tahap, yaitu pemodelan gerak kendaraan differential-steering, pembuatan mekanisme penggerak tuas-tuas kemudi, sensor kecepatan trek roda, pengembangan sistem pengendalian, dan pengendalian belok pada ujung lintasan. Selanjutnya, pengujian akhir dilakukan untuk mengevaluasi kinerja sistem pengendalian yang telah dibuat dalam mengikuti lintasan acuan. Sistem pengendalian combine harvester yang dikembangkan dalam penelitian ini menggunakan sensor navigasi RTK-GPS, giroskop, dan sensor proximity untuk mengukur kecepatan roda trek. Pengujian sistem dilakukan pada kecepatan maju 0,17 m/s dan frekuensi pengukuran sensor navigasi 5 Hz. Hasil pengujian menunjukkan bahwa combine harvester otonom mampu mengiktui lintasan pemanenan. Rata-rata eror lateral combine pada lintasan lurus sebesar 0,081 m.
Keyword: combine harvester, sensor navigasi, sistem pengendalian otonom

Judul: Rancang Bangun Sistem Kemudi Otomatis Traktor Pertanian Berbasis Navigasi GPS (Global Positioning System)
Abstrak: Research about the application of automatic navigation system on agricultural tractors has become one of the important research topics in the last two decades especially in the developed countries where the issue of ‘Precision Farming’ application is considered. GPS has been commonly used as the navigation system of vehicles including tractors. The objective of the research was to develop smart tractor that would work automatically based on GPS navigation for cultivation activity in precision farming. Mechatronic navigation control system for agricultural riding tractor including tractor steering, accelerator, clutch, brake system, and hydraulic control had been successfully developed using microcontrollers. GPS interfacing and data processing were also developed using Visual Basic 6.0 and functioned as the main control system. Field test was done on 40 x 20 m area with tractor velocity 0.6 m/s. The average error of control system was 17.9 cm.
Keyword: 

Judul: Daya Tahan IgY Spesifik Terhadap Influenza dan COVID-19 dalam Balsam Bibir
Abstrak: Influenza and SARS-CoV-2 virus are respiratory infections and require antiviral medications due to severe consequences. Utilization of specific immunoglobulin Y (IgY) inserted in personal care products were developed. The aim of this study was to evaluate durability of specific IgY against influenza and COVID-19 in lipbalm. The concentration of IgY used in this research was 0.1% and 0.25%. Three groups were observed: control (C) lipbalm without IgY, treatment 1 (T1) lipbalm with 0.1% IgY and treatment 2 (T2) lipbalm with 0.25% IgY. Organoleptic tests were conducted and recorded which includes the sense of smell, colour and consistency for six weeks. The presence of IgY in lipbalm was evaluated using enzyme-linked-immunosorbent-assay (ELISA) and neutralizationassay. There were some noticeable changes of organoleptic that can be observed such as colour darkened and texture hardened of the lipbalm. Most of the assays gave negative results in T1 and T2, whilst only few of them were doubtful. Our result indicated that IgY concentration of 0.1% or 0.25% in lipbalm were not optimal. However, the negative result might be due to the unavailability of IgY in the product to be dissolved in deionized water since we used beeswax as lipbalm component.
Keyword: Covid-19, egg yolk immunoglobulin Y, lipbalm, influenza