Judul: Faktor-faktor yang memengaruhi Muzaki dalam memilih organisasi pengelola zakat (OPZ): Studi kasus LAZ PMA Al Bunyan
Abstrak: Lembaga pengelola zakat berpengaruh dalam pengoptimalan potensi zakat nasional. Salah satu lembaga pengelola zakat yang ada di Kota Bogor adalah LAZ PMA Al Bunyan. Tujuan penelitian ini adalah menganalisis faktor-faktor yang memengaruhi muzaki memilih Organisasi pengelola zakat LAZ PMA Al Bunyan dan menganalisis kepuasan muzaki terhadap kinerja LAZ PMA Al Bunyan. Metode analisis faktor digunakan untuk melihat faktor-faktor yang memengaruhi muzaki memilih OPZ LAZ PMA Al Bunyan. Analisis deskriftif digunakan untuk menganalisis kepuasan muzaki terhadap kinerja LAZ PMA Al Bunyan. Penelitian ini dilakukan selama bulan Desember 2015 hingga Januari 2016 dengan 100 responden muzaki LAZ PMA Al Bunyan. Hasil analisis faktor menunjukan faktor-faktor yang memengaruhi muzaki memilih OPZ LAZ PMA Al Bunyan adalah faktor kualitas pelayanan, faktor program penyaluran zakat, faktor profesional, faktor transparansi, faktor citra lembaga, faktor ketersediaan informasi, faktor promosi lembaga, faktor pengetahuan dan faktor akses, dengan faktor yang paling dominan yaitu faktor kualitas pelayanan. Dengan demikian, kepuasan muzaki terhadap kinerja LAZ PMA Al Bunyan dapat disimpulkan sudah cukup baik di tingkat kepuasan pelayanan dan fasilitas yang disediakan oles LAZ PMA Al Bunyan.
Keyword: Analysis factor, Organization Zakat Management (OPZ), Zakat

Judul: Analisis Faktor-Faktor yang Memengaruhi Muzaki dalam Memilih Organisasi Pengelola Zakat (OPZ) : Studi Kasus di Badan Amil Zakat Nasional Kota Bogor
Abstrak: The main purpose of management of zakat in Act No 23/2011 is to achieve public welfare and poverty alleviation. However, until now, zakat has not been sufficient to attain both these goals since zakat fund collected in Indonesia is only about 1% of its national potential that reaches Rp 217 trillion. This indicates that there are many muslims who are not motivated to pay zakat nor trust Zakat Management Organization. This study analyzes the factors that influence muzakki in choosing Zakat Management Organization and the performance of BAZNAS Kota Bogor from muzakki’s perception. Logistic regression is used to analyze the factors that affect muzakki in choosing the Zakat Management Organization. Descriptive analysis is used to analyze the perceptions of the BAZNAS Kota Bogor. This research was conducted during the month of February 2014 with 30 respondents BAZNAS Kota Bogor’s muzakki and 30 respondents muzakki whose paying zakat directly to mustahiq. The results of logistic regression show that the factors that affect muzakki in choosing Zakat Management Organization are income, the level of reliability, and institution’s image. The muzakki’s perception of the performance of BAZNAS Kota Bogor can be concluded as good, particulary in reliability, responsiveness, and tangible.
Keyword: Logistic Regression Method, Zakat Management Organization (OPZ), Zakat,

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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