Judul: Aplikasi Pengelolaan Parkir Satu Pintu Berbasis Mobile Android Dengan Pengenalan Karakter Optik
Abstrak: Beberapa area parkir di kampus IPB masih menggunakan pencatatan kendaraan parkir secara manual oleh satpam. Penelitian ini menghasilkan sebuah aplikasi M-Parking pada mobile phone berbasis Android. Aplikasi akan mengenali citra karakter id kartu parkir dengan menggunakan library Tesseract OCR (Optical Character Recogntion). Beberapa kebutuhan fungsional utama pada aplikasi di antaranya mengambil foto id kartu dengan kamera atau galeri, menampilkan teks id kartu hasil OCR, menyimpan id kartu dan foto kendaraan, mencari id kartu berdasarkan rentang waktu, menampilkan foto kendaraan dan biaya parkir. Berdasarkan 350 data uji kartu parkir, nilai akurasi OCR terbaik adalah 100% pada kondisi pencahayaan normal, sangat terang, redup, dan citra dalam keadaan kabur. Faktor yang paling mempengaruhi akurasi adalah kemiringan teks id kartu. Adapun efisiensi waktu yang didapatkan oleh aplikasi dibandingkan dengan sistem manual yakni 3.64 detik lebih cepat pada saat kendaraan masuk dan 2.15 detik lebih cepat pada saat kendaraan keluar. Evaluasi usability pada aplikasi menghasilkan nilai 93.6%.
Keyword: Android, Image, Parking, Tesseract OCR, Text, Proses pengenalan karakter, Pengujian usability

Judul: Aplikasi Android untuk Pengenalan Citra Karakter Jepang dengan Library Tesseract
Abstrak: Japanese is one of difficult language to learn because the writing is relatively complicated and it has three kind of writing hiragana, katakana, and kanji. In this study, the Japanese character recognition system based on Android is designed to recognize Japanese character image and translate it into Indonesian using the library Tesseract OCR (Optical Character Recognition). OCR is a technique to convert non digital text into digital text or literally be interpreted as optical character recognition. In this study there were five functional requirements taking a picture with a camera, taking pictures form gallery, the conversion from image to text, text editing of Japanese character form OCR results, and display the results of Japanese text translations. Based on 10 samples of Japanese characters that have been tested, the accuracy values obtained from the test image from the camera around 80% and 94% image from the gallery. Besides test of applications using the questionnaire reached 91%. Thus this application is expected to be able to recognize the image of Japanese characters and translate them into Indonesian according to user needs.
Keyword: Bogor Agricultural University (IPB), Text., Image, Tesseract OCR, Android, Indonesian, Japanase

Judul: Mercury Toxicity and It’s Effect on Histopathology Change of Nile Tilapia (Oreochromis niloticus).
Abstrak: Nile tilapia (Oreochromis niloticus) is one of fish species that oportunity to contaminated with mercury. The effects of pollutants can damage living organisms organs and can cause death. The effects caused mercury had acute or chronic character. The aims of this study are to determine threshold and acute toxicity of mercury chloride (HgCl2) of Nile tilapia (Oreochromis niloticus), to assess the effect of mercury chloride (HgCl2) on several biometric parameters (survival, growth rate of average daily weighted, liver condition, bile and reproductive variability of Nile tilapia (Oreochromis niloticus), assess the level of damage to the histological structure of the gills, liver and kidney of Nile tilapia (Oreochromis niloticus) caused mercury chloride (HgCl2) exposure. This study was conducted from February to June 2013. Nile Tilapia (Oreochromis niloticus) were used in this study were female with average weight 20 grams or 11-13 cm length range. Toxicant materials used in this study was mercury chloride (HgCl2). Fish were reared in each aquarium 60x40x30 containing 48 liters of water. This study consists of three stages: a preliminary test, acute test, and sub-chronic test. To determine the changes in biometric condition of tilapia approximated by measuring the survival rate (SR), the growth rate of average daily weight , the content of mercury in the fish organs, hepatosomatic index (HSI), the relative bile volume (VER), gonadal soamtic index (IKG), fecundity and oocit diameter, tissue damage caused by mercury in fish organs by making histological preparations stained with hematoxylin and eosin. The median lethal concentration (96 hr, LC50) of Mercury Chloride was calculated as 1,64 mgL--1.The survival rate was highest in the control treatment (46,67 %) . Mercury chloride with concentration 0.196 mgL--1 show significant effect to changes HSI and relative bile volume, and oocyte diameter of Nile tilapia (p < 0,05). Mercury chloride with a concentration of 0,164 mgL-1 and 0,196 mgL-1 have not a significant effect on the growth rate of weight, gonadal somatic index and fecundity of Nile tilapia (p > 0,05). Mercury chloride cause damage to gills (hyperplasia, hypertrophy, proliferation and neukrosis), liver (hyperplasia, hemorhage, shrinkage of hepatocytes, proliferation and neukrosis) and kidney (hyperplasia, hemorrhage, shrinkage of the glomerulus, proliferation and neukrosis).
Keyword: Nile tilapia, Hepatosomatic indexs (HSI), histopathology