Judul: Evaluasi Koleksi Jurnal Elektronik EBSCO Menggunakan Metode Conspectus di Perpustakaan IPB
Abstrak: Since 2009 IPB has subscribed EBSCO electronic journal database. However, until today the collection IPB has never been evaluated wheather or not the collection meets the needs of users. This study aims to do the evaluation by applying conspectus methods. Using the methods, the collection of the journal will be classified according titles and analyzed their strength and weaknesses. This research uses electronic journal database EBSCO academic source complete package which contains 11. 945 journal titles. The data used in the research are taken from(1) the result from analyzing journal titles by determining the class and subject classification scheme based on Universal Dewey Classification (UDC) (2) evaluator response on questionare to determine the collection rate indicator (0-5) and the scope of the language. Results showed that the distribution of the number of top journals are on the subject of class-3 (social sciences) by 20%, the subject of class-5 (pure sciences) by 20% and class 6 (applied and technological sciences) as much as 36%. The strengths of the collection is on-classes 5 and 6 subjects at level 4 and level 3b. Conspectus method is relevant in an effort to form a collection of libraries core collection, especially in arround universities.
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Judul: Analisis Pemanfaatan Jurnal Online ScienceDirect di Perpustakaan IPB (Studi Kasus Pada Mahasiswa Pascasarjana S2 IPB)
Abstrak: Perpustakaan IPB pada tahun 2009 mulai melanggan jurnal elektronik. Basisdata yang dilanggan oleh Perpustakaan IPB adalah : ScienceDirect (Agricultural and Biological Sciences, Social Sciences and Humanities), Proquest (Agriculture, Family Health), Business dan EBSCO (Computer Sciences, Applied Sciences). Laporan Tahunan Perpustakaan IPB tahun 2010 memberikan informasi bahwa pengunduhan (downloading) berdasarkan data yang diambil oleh Perpustakaan IPB dari provider, basisdata ScienceDirect merupakan basisdata yang paling banyak diunduh oleh civitas akademika IPB. Sedangkan penelusuran secara online yang dilakukan langsung oleh pemustaka di Perpustakaan IPB menunjukkan bahwa basisdata ScienceDirect merupakan basisdata yang banyak diakses oleh Mahasiswa pascasarjana S2. Berdasarkan data tersebut, nampak bahwa pemanfaatan basisdata ScienceDirect oleh mahasiswa pascasarjana S2 IPB lebih besar dibandingkan basisdata lainnya. Hal ini menarik perhatian untuk dikaji lebih jauh berkaitan dengan bagaimana motivasi mahasiswa pascasarjana S2 IPB dalam memanfaatkan jurnal Online ScienceDirect tersebut. Tujuan dari penelitian ini adalah untuk mengkaji faktor-faktor yang mempengaruhi motivasi pemanfaatan jurnal Online ScienceDirect, pemanfaatannya pada penulisan tesis, mengkaji peran Perpustakaan IPB dan mengkaji implikasi pemanfaatan jurnal Online ScienceDirect terhadap layanan jurnal elektronik.
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Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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