Judul: Pembangunan Aplikasi Android Informasi Tumbuhan Berbasis Geospasial di Kebun Raya Bogor
Abstrak: Kebun Raya Bogor merupakan tempat penelitian dan pariwisata edukasi tumbuhan tropis. Papan tumbuhan adalah salah satu fasilitas yang disediakan Kebun Raya Bogor. Papan tumbuhan berfungsi untuk menginformasikan jenis tumbuhan yang dilestarikan. Sedikitnya informasi yang dimuat dan kerusakan pada beberapa papan tumbuhan menyebabkan fungsinya menjadi kurang efisien. Penelitian ini berupaya menghadirkan sebuah solusi atas permasalahan tersebut. Solusi yang diajukan adalah membangun aplikasi informasi tumbuhan pada smarthphone Android. Aplikasi tersebut dapat meningkatkan efisiensi informasi tumbuhan melalui sebuah antarmuka yang ditampilkan. Global positioning system menjadi salah satu teknologi yang dimanfaatkan untuk mendeteksi informasi tumbuhan berbasiskan geospasial. Formula Haversine berfungsi untuk mengkalkulasi jarak dari lokasi relatif tumbuhan terhadap lokasi user saat ini. Pengujian aplikasi pada 2 tipe smartphone yang berbeda memberikan performa yang cukup baik. Persentase rata-rata akurasi tepat mendeteksi sebesar 66% dan 73%. Aplikasi yang telah dibangun mampu mendeteksi posisi dan menampilkan antarmuka informasi tumbuhan yang lebih lengkap.
Keyword: Android, Bogor Botanical Garden, Geospatial, Plant information, Smartphone, Efisiensi informasi, Global positioning system, Akusisi data, Informasi tumbuhan

Judul: Pengembangan Sistem Informasi Tanaman di Kebun Raya Bogor Berbasis Android
Abstrak: Bogor Botanical Gardens (BBG) is the third largest botanical garden in Indonesia. There are 13697 specimens in BBG, which are grouped into 3441 species, 1265 genus, and 220 families in an area of 87 hectares. The absence of an application which can provide information about the plant and its location causing difficulties for users to gain detail information and location of a plant to be visited. The purpose of this research was to build a plant information systems at BBG by integrating geographic information system (GIS) on Android. This system was expected to help users to see detail information of plants and can guide them to the area location they want to visit. The research was conducted in several stages, started with planning, analyzing system requirements, system design, system implementation, and maintenance. The test results shown that the system was able to work well and produce the expected output
Keyword: Bogor Agricultural University (IPB), Information System., GIS, Bogor Botanical Garden, Android

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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