Judul: Desain dan implementasi application layer sistem sirkulasi berbasis web studi kasus: Perpustakaan Pusat IPB
Abstrak: Pencatatan transaksi merupakan salah satu hal yang penting dalam sebuah perpustakaan. Proses pencatatan dapat dilakukan dengan berbagai cara, salah satunya dengan menggunakan perangkat lunak yang memudahkan pencatatan. Penggunaan sistem manajemen basis data yang tidak sesuai dalam pencatatan transaksi dapat mengakibatkan kurangnya keakuratan dari data. Untuk itu perlu dikembangkan perangkat lunak yang menggunakan sistem manajemen basis data yang tepat. Tujuan dari penelitian ini adalah untuk mengembangkan lapisan aplikasi sistem sirkulasi Perpustakaan Pusat Institut Pertanian Bogor (IPB) dengan perbaikan pada sistem manajemen basis data. Sistem dibangun dengan menerapkan arsitektur three tier menggunakan konsep web service.
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Judul: Pengembangan antarmuka sistem katalogisasi berbasis Web menggunakan konsep model view controller (MVC) studi kaskus: Perpustakaan IPB
Abstrak: Perpustakaan Institut Pertanian Bogor (IPB) menngembangkan sistem katalogisasi pengganti sistem lama (WINISIS) untuk proses katalogisasi. Sistem pengganti yang dibuat berbasis web dan menggunakan arsitektur Three-tier yang membagi sistem menjadi tiga lapisan, yaitu lappisan antarmuka pengguna, lapisan aplikasi dan lapisan basis data. Pada arsitektur ini seluruh basis data dan aplikasi terdapat di server sehingga apabila terjadi perubahan cukup dilakukan di server.
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Judul: Hybrid solar cells of ZnO nanoparticles/chlorophyll was modified metal ions (Zn2+ and Cu2+ )
Abstrak: Zinc Oxide (ZnO) is a n-type semiconductor with a wide the energy band (Band Gap) is 3.37 eV at room temperature and 3.34 eV at low temperature with a large exiton binding energy is 60 meV. ZnO has been synthesized by hydrothermal method, resulting in a decrease in particle size over the duration of the hydrothermal changes. Crystallographic structure of ZnO were characterized using XRD, has shown the characteristic pattern of a hexagonal wurtzite structure, the crystallite size increases to changes in particle size. Changes in particle size has also led to a change in the absorption peak of ZnO as has been demonstrated posted under test using the optical properties of UV-Vis spectrophotometer. Changes of this uptake has also led to changes in the energy band gap, which increases its band gap energy of the particle size. In electronic applications, especially in solar cells. Chlorophyll is considered less effective, because of their very nature are easily degraded as a result of several reactions which are acid, lighting and temperature. The results of the stability test using a halogen lamp 34 W/m2 for 5 hours, that the substitution of chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form more stable than natural chlorophyll. The characterization of the optical properties, the combination of ZnO / chlorophyll in the form of hybrid films has led to a shift in the absorption region of ZnO becomes more widely from the UV to Visible. ZnO/chlorophyll has absorption range of 350-515 nm, ZnO / Zn-feofitin 332-401 nm and 332-632 nm for Cu-feofitin. The combination of ZnO/chlorophyll and CuSCN as a solid electrolite in hybrid solar cell, a modified chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form a more stable I-V curve. It is characterized by its fill factor value greater than natural chlorophyll. Nevertheless, solar cells with natural chlorophyll has been able to produce higher efficiency values of chlorophyll were substituted.
Keyword: Hydrothermal, ZnO/Chlorophyll modified, Hybrid Solar Cell