Judul: Sistem Informasi Geografis untuk Pola Aktivitas Manusia dengan Pemodelan Data Spatio-Temporal
Abstrak: The human activity in a given time period will shape its pattern. This research develops a spatiotemporal data model to support the prediction of human existence based on activity-pattern and also visualizes the activity locations in a GIS environment. This so-called mobility oriented spatiotemporal data model conceptualizes the spatial and temporal interaction of activity behaviour using the concept of mobility. In other words, activity patterns are conceptualized as a sequence of staying at or traveling between activity locations. The model can support the analysis and queries of activities from different perspectives, i.e. queries can be time-oriented, person-oriented, activity-oriented, and location-oriented. A prototype system based on the activity data modelling is implemented in MySQL 5.0.27 as DBMS with using PhpMyAdmin 2.9.1.1 software. Spatial database is developed with using software QuantumGIS and ArcView. The system could be accessed online through a web browser with MySQL as its database storage and Pmapper framework as the tools used in visualizing the activity locations.The information were provided in the form of activity attribute-data as the user requested and graphical-data (map) which contains information about its activity locations.
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Judul: Develoment of a spatial database management system using object-relation database and web technology
Abstrak: The increasing need of spatial data and the complexity of GIS analysis, has affected the importance of the availability GIS data as well as the method to provide the GIS data become a great challenge to meet the user needs. The utilization of Information Technology, especially Internet, has affected to the effectiveness of GIS data sharing, dissemination and how the data accessed and manipulated. Most of spatial database management manages the GIS data separate descriptive data management from geospatial data management (hybrid approach), which sometimes implies difficulties in data management such as querying, recovery, optimization and geometric computations. The objectives of this research are to; [1] develop a system of spatial database management using object-relational database and web technology, [2] develop a system and tools to store, access, retrieve and use the integrated spatial database. To avoid the weakness of hybrid approach, an integrated approach spatial database management system was used in this research. By taking the strength of Object Relational Database in managing complex process and complex querying, a web based application has been built to provide the front-end application to access GIS data through Internet/Intranet. The application system has some functionality such as: spatial database and meta- database management, spatial data and metadata catalog and presentation, and user management. By using this application system, both of data type can be managed in integrated approach, which means that all data stored within the same database management system, and keep the close relation between spatial data and attribute data or metadata. This approach is much better than hybrid approach in spatial database management system. Currently, the application system only handle shapefile data format. Even the map file and legend can generate dynamically (on the fly) by the application, but it is limited for geomorphology theme only. It is recommended to improve these capabilities to accept more different data format and improve the data sharing function (clearinghouse) by applying Z.39 protocol...dst
Keyword: Spatial database management, Object relational database, Database normalization, Geospatial metadata

Judul: Produk emulsi dari kombinasi minyak ikan sardin (Sardinella sp.) dan cucut (Centrophorus sp.)
Abstrak: Minyak ikan sardin memiliki kelebihan yaitu kandungan Eicosapentanoad acid (EPA) yang cukup tinggi, namun rendah kandungan Dokosaheksanoa acid (DHA), disisi lain minyak cucut memiliki kandungan DHA dan squalen yang tinggi namun rendah kandungan EPA. Kombinasi minyak ikan sardin dan cucut diharapkan dapat menghasilkan produk minyak ikan kaya omega-3 dan squalen. Emulsi minyak ikan yang diperkaya omega-3 merupakan salah satu produk impor yang umumnya diperuntukkan pada anak-anak. Sejauh ini belum ditemukan produk emulsi minyak ikan di pasaran yang diperkaya dengan squalen. Produk emulsi kaya omega-3 dan squalen diharapkan tidak hanya diperuntukkan bagi anak-anak, namun juga dapat diperuntukkan bagi orang dewasa dan lansia sebagai suplemen. Tujuan penelitian ini adalah membuat produk emulsi minyak ikan diperkaya dengan squalen dari kombinasi minyak ikan sardin dan cucut. Penelitian ini dibagi menjadi empat tahapan, yaitu tahap pertama karakterisasi minyak ikan sardin dan cucut sebelum dan sesudah pemurnian. Tahap kedua yaitu penentuan kombinasi minyak ikan sardin dan cucut terbaik dengan perbandingan (1:1, 1:2, 1:3, 1:4, 2:1, 3:1, dan 4:1). Tahap ketiga yaitu penentuan stabilitas minyak ikan terbaik dengan atau tanpa penambahan alfa tokoferol pada suhu ruang. Tahap keempat yaitu fomulasi emulsi minyak ikan menggunakan kombinasi bahan pengemulsi guar gum dan whey protein dengan perlakuan konsentrasi guar gum 0.5%, 0.70%, 1%, 1.1% dan 1.3%. Pemurnian dengan proses degumming, netralisasi, dan bleaching menurunkan nilai total oksidasi minyak ikan cucut sehingga memenuhi standar IFOS. Pemurnian juga dapat meningkatkan kandungan SFA, MUFA dan PUFA. Kombinasi minyak ikan terbaik ditemukan pada rasio 1:4 (sardin:cucut). Perlakuan tersebut sudah memenuhi standar parameter total oksidasi IFOS yaitu ≤ 26.0 mEq/kg dengan kandungan omega-3 sebesar 8.55% dan squalen sebesar 43.16%. Semakin tinggi rasio penambahan minyak sardin pada minyak ikan cucut maka kandungan omega-3 akan semakin tinggi. Penambahan alfa tokoferol 0.02% pada minyak ikan mampu memberikan penghambatan oksidasi selama 6 hari penyimpanan. Berdasarkan paramer uji kestabilan, viskositas dan ukuran droplet produk emulsi terbaik dihasilkan pada formula dengan penambahan guar gum 1.1% dan whey protein 0.4%.
Keyword: cucut, emulsi, kombinasi, omega-3, sardin, squalen