Judul: Sistem Navigasi Angkutan Kota Bogor Berbasis Web menggunakan Algoritme Yen untuk Pencarian Alternatif Rute terpendek
Abstrak: Kota Bogor memiliki banyak angkot dengan rute yang berbeda, karena itu sulit untuk menentukan angkot bagi seseorang yang tidak mengenal rute angkot di Kota Bogor. Penelitian ini bertujuan untuk membangun sistem navigasi angkutan Kota Bogor berbasis web dengan menggunakan algoritme Yenuntuk pencarian rute terpendeknya. Algoritme Yen diimplementasikan untuk mendapatkan alternatif rute berdasarkan jarak antara tempat asal dan tempat tujuan yang dimasukan pengguna sistem. Data yang digunakan merupakan informasi umum angkot dan informasi rute angkot resmi yang terdaftar di DLLAJ Kota Bogor. Sistem navigasi angkutan kota (angkot) Bogor telah dibangun dengan menggunakan bahasa pemrograman Python dengan framework Django. Hasil dari pengembangan sistem navigasi ini menampilkan petunjuk serta rute angkot berdasarkan tempat asal dan tujuan yang dimasukan pengguna. Petunjuk dan rute pada hasil dapat ditampilkan sebanyak alternatif angkot yang tersedia dalam satu rute dan maksimal sampai dua alternatif rute berdasarkan jarak. Pengujian telah berhasil dilakukan dengan jarak dekat sampai menengah antara tempat asal dan tujuan.
Keyword: angkot, rute terpendek, algoritme Yen

Judul: Penerapan Algoritme Dijkstra Pada Rute Angkot Bogor Berbasis Android
Abstrak: There are some problems dealing with angkot in Bogor. The problems are related to the complexity of route system and amount of angkot unit. In this research, information system was developed for guiding user in order to choose the most efficient route to reach the purpose location. The Dijkstra algorithme was employed to support the system in order to find the route that provide the shortest distance from the origin to the purpose location. The system was developed by using Java and XML programming language and evaluated by applying black box testing method. The evaluation results show that the system can succesfully meet all requirements, particularly providing the most efficient route of a certain location.
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Judul: Synthesis of Apatite - Chitosan Composite Using Duck Eggshell and Chitosan with Temperature and pH Control
Abstrak: Composite of apatite-chitosan was prepared by using chitosan as polymer matrix. Calcium phosphate was prepared from CaO and (NH4)2HPO4, which the ratio Ca : P had to be 1.67. Chitosan is produced by deacetilase from biopolymer chitin. Duck eggshell (95% CaCO3) as starting material was converted to be calcium oxide (CaO) through calcinations with temperature 1000oC for 5 hours. In-situ and ex-situ methods were prepared from apatite and chitosan (dissolved with acetate acid 2%). Calcium phosphate prepared for bone implantation, but it is too fragile and brittle to be implant into the body. So addition of chitosan can decrease crystalinity and increase mechanic characteristic (tougher). Composite apatite-chitosan was resulted by fast precipitation. Fast precipitation was held in a breaker glass with nitrogen atmosphere, under controlled temperature at 37oC and pH 7, in order to increase amount of hydroxyapatite. Precipitation with CaO which was dropped by (NH4)2HPO4. Hydroxyapatite and chitosan were appearing at samples with in-situ and ex-situ methods which indicating by peak matching of XRD (closed lattice parameter, crystal size), overlapping at FTIR spectra and supporting by SEM picture (homogenous and agglomerated particle). However, it still needs further research to examine biocompatibility osteoconductive degree of sample by in-vivo and in-vitro test.
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