Judul: Pengembangan Web Aggregator Institut Pertanian Bogor Menggunakan Single Stream Aggregation
Abstrak: Information is easily accessible without any geographical and time constraints because of Internet growth. Everyone needs information to keep updated. With the RSS (Really Simple Syndication) technology, a method to encapsulate and distribute news in a solid and informative package, any Internet users can follow updated news without having to always search news of interests. The information system uses a so called Aggregator Technology. In this study, web aggregator development of Bogor Agricultural University is developed using Single Stream Aggregation method. This method puts the latest updated news on top position on each news source. This study also classifies news by topic to facilitate users in getting specific news. The classification is conducted using k-Nearest Neighbor The results show that the Aggregator system can be made to collect all news from available feeds based on sequence time. The system is successful on classifying documents with the percentage accuracy 53% with k=5.
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Judul: IPB Web-based News Aggregator Vedelopment
Abstrak: The rapid growth of sites on the internet are leading to same difficulties encountered by those with limited time ang internet accsess. IPB also has saveral site, consisting of official Faculty's, Department's ang mayu other wich being updated regulary. To Easily keeping tract of all the updates, IPB news aggregator system id developed. The system, using RSS (Really Simple Syndication) technology, presents a site where people can read all news that are related to and were published from site under IPB. The use of AJAX is expected to enhance interactivity and ensuring smooth presentation for the users. The system records frequency of site's update, giving insight about wich sites are currently not being update oftenly. IPB news agregator system provides quick and easy accsess to every news that has published from sites under IPB, also serves as secondary depository many IPB sites' content, for backup purpose.
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Judul: Karakteristik Piezoelektrik Film LaxSr₁-xTiO3 di atas Substrat TCO
Abstrak: Studi material perovskite SrTiO3 sudah banyak dilakukan dan menunjukkan sifat feroelektrik, piezoelektrik, kuantum paraelektrik dan superkonduktor yang baik. Dengan penambahan dopant La2O3 diduga menambah performa sifat piezo dan karakteristik lainnya. Karakteristik film LaxSr₁-xTiO3 (LST) dengan variasi x= 0, 0.02, 0.04, 0.06 terbentuk pada suhu annealing 550 oC di atas substrat TCO melalui metode (Chemical Solution Deposition) CSD dan spin coating dengan 700 rpm pada kondisi suhu ruang dan tekanan atmosfer standar. Hasil menunjukkan, semakin banyak pendadah La maka nilai ketebalan film, ukuran rerata kristalit, parameter kisi, transmitansi, nilai konduktivitas (maksimum 589.7 S/cm pada sampel x=0.04 di frekuensi 10 Hz), nilai konstanta tegangan (c) dan muatan (d) piezo semakin meningkat. Dinamika bentuk grafik nilai tegangan (V) dan konstanta regangan mekanik (s) nampak mirip. Nilai V mencapai 0.127 V untuk x=0.06 (beban 50 g). Nilai maksimum c, d, s masing-masing mencapai 20.07 Vm/N, 1.14x10-8 C/N, 13642.71. Nilai band gap untuk x=0, 0.02, 0.04, 0.06 masing-masing 3.21 eV, 3.1 eV, 2.6 eV, 2.4 eV. La2O3 menambah performa sifat piezo, sehingga LST berpotensi sebagai sensor tekanan.
Keyword: CSD method, La2O3, LaxSr1-xTiO3, piezoelectric, TCO