Judul: Determination of footprint area model using body weight and height as prediction parameters
Abstrak: Prediksi ketenggelaman roda merupakan hal penting untuk diperhitungkan dalam studi kinerja sebuah kendaraan off-road yang beroperasi pada suatu lahan agar tercapai efisiensi dan efektifitas kinerja kendaraan. Hal tersebut seyogyanya dapat diukur dengan alat/metode yang sederhana seperti ketenggelaman telapak kaki agar petani lebih mudah dan cepat dalam memprediksi ketenggelaman roda kendaraannya. Parameter yang diperlukan untuk memprediksi ketenggelaman telapak kaki adalah berat badan dan luasan telapak kaki, sedangkan untuk memprediksi luasan telapak kaki diperlukan parameter berat dan tinggi badan. Penelitian ini bertujuan untuk membuat model luasan telapak kaki (A) subjek laki-laki dan perempuan dengan parameter berat badan (W) dan tinggi badan (H).
Keyword: sinkage, human foot sinkage, footprint area model

Judul: Pendugaan Ketenggelaman Terrestrial Robotic Vehicle (TRV) Melalui Pendekatan Jejak Kaki Manusia
Abstrak: Terrestrial Robotic Vehicles (TRVs) are necessary to be developed to support agricultural activities in Indonesia. TRVs development requires special consideration on the characteristics of the soil physical and mechanical properties related to its effect on TRV mobility. One of the detrimental effect in mobility is sinkage. Sinkage estimation has been successfully used to large vehicles is a Bekker's model (Bekker 1962 in Meirion-Griffith and Spenko 2011) however appliying Bekker model to smaller vehicles can be problematic. This model has little accuracy when used on small vehicles. This research proposes sinkage estimation model for TRV using a simpler method, that is using water capacity, bulk density and human foot pressure parameters. The proposed model of sinkage is zksa= -15.21 + 0.318Pskn + 2.615ka0-5 - 59.85ρ0-5 for female subjects and zkdc = -18.597 + 0.190Pkr + 1.919ka0-5 - 36.235ρ0-5 for male subjects however the verification results showed both models have a low accuracy, therefore both models needs to be improved.
Keyword: Bogor Agricultural University (IPB), water capacity, TRVs, sinkage, pressure, human footprints

Judul: Synthesis of Molybdenum Trioxide (MoO3) by Electrochemical Method for Electrochromics Application
Abstrak: Molybdenum trioxide (MoO3) thin films have been deposited on glass substrates by electrochemical method using ammonium heptamolybdate tetrahydrate ((NH4)6Mo7O244H2O). The films were deposited onto glass substrates as the control temperature at 25○C and annealing treatment at 350○C for 30 mins. The MoO3 thin films were investigated by UV-Vis, X-ray diffraction techniques (XRD), Scanning Electron Microscopy (SEM). The JCPDS card show that orthorhombic MoO3 (α- phase) has been formed. Molybdenum trioxide MoO3 formation was also confirmed by JCPDS card no. 35-0609. The SEM photographs revealed that the spherical and rod-like morphology and their grains size increased with increasing of heating temperatures. The measurement results show that the MoO3 thin film prepared at 350°C transmited about 80% of the visible spectrum. The effect of different heat treatments on surface morphology, thickness and optical properties of the films are discussed in this thesis.
Keyword: Institut Pertanian Bogor, Bogor Agricultural University, IPB, Electrophoretics, electrodeposide, electrochromics, electrochromic materials, electrochromic mechanism