Judul: Sistem Informasi Geografis Ruangan  Kampus IPB Darmaga  (SIR-IPB)
Abstrak: Penggunaan teknologi komputer untuk mempermudah dan membantu pekerjaan manusia telah berkembang dengan pesat. Pada bidang geografi telah dikembangkan suatu sistem berbasis komputer yang dapat menyimpan dan mengolah data, baik berupa data atribut maupun data spasial. Sistem tersebut adalah Sistem Informasi Geografis (SIG). Dengan menggunakan SIG berbagai data geografis suatu wilayah seperti tata letak, sumber daya dan karakteristik dapat lebih mudah dipahami dan dikomunikasikan. Dengan karakteristik demikian, SIG akan sesuai untuk dijadikan solusi permasalahan dalam proses pencarian ruangan yang ada di kampus IPB Darmaga. Mengingat begitu banyaknya ruangan yang ada di kampus IPB Darmaga yang cenderung membingungkan dalam proses pencariannya, maka melalui sistem ini diharapkan permasalahan tersebut akan dapat terselesaikan. Pada penelitian ini dibentuk suatu sistem berbasis web yang menyajikan informasi geografis mengenai Kampus IPB Darmaga. Sistem ini memberikan informasi data spasial dan atribut mengenai kampus IPB Darmaga. Sistem ini juga memiliki sistem keamanan karena tidak semua informasi boleh diketahui oleh masyarakat umum
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Judul: Sistem informasi geografis pencarian ruang kuliah kampus IPB Darmaga
Abstrak: IPB has the building architecture which is almost equal to a fairly wide area and sometimes a lot of academicians are confused and have difficulty in finding the intended lecture room. In this research, we built a web-based system using the system development life cycle which presents geographic information that can help facilitate the academicians in search of lecture room at IPB. The geographic information system is built using Pmapper. The results of this research is a system which displayed room information in a table with function of filtering, searching, paging, delete, edit, add data, and in the form of a map with the features on Pmapper with function of coordinates, legends, searching, zooming to extents, back, forward, zoom to selected, zoom in, zoom out, pan, identify, select, tool tip, refresh folder, point of interest, download, and export to CSV / PDF. Based on the test results, this system has worked well in accordance to the user needs to facilitate them in searching lecture room at the IPB Darmaga campus.
Keyword: geographic information system, MapServer, Pmapper, PostGIS

Judul: Karakteristik Carboxymethyl Chitosan Dengan Variasi Konsentrasi NaOH
Abstrak: Carboxymethyl chitosan is chitosan derivative product obtained from chemical modification. CMCh were made by alkalization process and carboxymethylation process. Factors that affect CMCh characteristics were excess sodium hydroxide in alkalization process, ratio between chitosan and monochloroacetic acid, and carboxymethylation temperature. The objectives of this research were to study the NaOH effect to CMCh characteristics, to learn process of making CMCh, to set the proper concentration of NaOH, and to analyze CMCh characteristics. CMCh yields were 110.72%-114.22%. CMCh pH value were 3.74-4.31. The optimum NaOH concentration to obtain the best CHCh was 10 M. Percentage of CMCh moisture content was 10.70%-11.42%. Ash content and nitrogen content of CMCh were 0.49%-0.50% and 4.52%-4.81%. CMCh viscousity was 8.25 cps. Percentage of CMCh solubility was 61.61%-91.50%. The different functional groups from chitosan which observed in CMCh were C=O group, CH group from alkene functional group, C−O group, and C−O−C group.
Keyword: solubility., functional group, CMCh characteristics, chitosan, carboxymethyl chitosan