Judul: Pengembangan dan Implementasi Sistem Pemadaman Api pada Fire-fighting Robot
Abstrak: Fires are frequent and have caused many casualties. Need a quick response to find and extinguish the fire source before the fire spread. Due to its danger, human intervention in extinguishing the fire needs to be kept as minimum as possible. For that, a robot that can detect the source of the fire and extinguish it at the same time is required. This study aims to develop fire extinguishing systems using the Arduino microcontroller as the main controller. Two fire extinguishing systems were built with two different methods. The first method utilized the wind from a fan, while the second method used a washer pump. Both systems were controlled by a relay. The results showed that the flame sensor can detect the fire at a distance of 30 – 100 cm. The wind-based fire extinguishing system was found to be able to extinguish the fire from a maximum distance of 120 cm, while the water-based fire extinguishing system did not succeed because the water burst from the washer pump was inadequate.
Keyword: flame sensor, Bogor Agricultural University (IPB), fire extinguisher, Arduino

Judul: Sistem Navigasi pada Robot Pemadam Api Menggunakan Wall Following dan Logika Fuzzy
Abstrak: A robot needs a good navigation to complete its task. One way to provide navigation capabilities on robots is artificial intelligence. Navigation capabilities using artificial intelligence may be associated with the ability to accept input from a range of sensors. However, inputs from the environment are uncertain so that a simple modeling is not sufficiently representative. Fuzzy logic is expected to overcome these uncertainties. This research aims to develop the navigation system on a fire-fighter robot using wall following algorithms and fuzzy logic. The system is simulated on KRPAI 2013 environment where the robot is expected to move by following the wall, extinguishing the fire, and returning to home. It is shown that the robot has successfully completed the mission on KRPAI 2013 with a success rate of 87.5%.
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Judul: Characterizations of low alloy steel sae 4422  plated with chromic acid (Cro3)
Abstrak: Characterizations of low alloy steel SAE 4422 plated with chromic acid (CrOrO3) was use Optical Microscopy (OM), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), RD),Energy Dispersive Analysis of X-Ray (EDAX), Hardness Test and Roughness Test. Microstructures analysis exhibits cracks and grain boundaries microcracks as a characteristics of chrome metal found at plating metal. Perlite and Ferrite as grains of steel found at base metal with grain boundaries around it. Phase analysis of plating metal appropriate to chrome metal with lattice constant (a) is 2.559 Å and phase analysis of base metal appropriate to iron ferrite with lattice constant (a) is 3.318 Å. Both plating and base metal have cubic system. Chemical analysis of plating metal at surface section exhibits that cracks area have highest value of carbon element compare with grains and grains boundaries area. While chemical analysis of base metal at cross section exhibits that perlite have highest value of carbon element compare with ferrite and grain boundaries. The hardness value of plating metal at surface section and cross section are 753 and 637 VHN. While, the hardness value of base metal and interface area at cross section are 205 and 373 VHN. The roughness value at measurement points of chrome surface for as received sample are 0.445 μm. Observation used Optical Microscopy and Scanning Electron Microscopy exhibits surface irregularities combine to form surface texture of plating metal at surface section.
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