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All Journal Journal of Engineering and Technological Sciences Fair Value: Jurnal Ilmiah Akuntansi dan Keuangan
Fatkhan Fatkhan
Program Studi Teknik Geofisika FIKTM-ITB
Economics, Econometrics & Finance Engineering

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Effects of Fracture Parameters in an Anisotropy Model on P-Wave Azimuthal Amplitude Responses Fatkhan, Fatkhan
Journal of Engineering and Technological Sciences Vol 38, No 2 (2006)
Publisher : ITB Journal Publisher, LPPM ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (624.617 KB) | DOI: 10.5614/itbj.eng.sci.2006.38.2.6

Abstract

The study showed that the presence of vertically aligned fractures in reservoir rock could possibly be inferred through analysis of P-wave reflectivity variations with azimuth. The azimuthal amplitude responses measured at an interface separating overburden anisotropy and fractured rock rely on several parameters that can be decomposed into the background rock and the fracture contributions.The effect of fracture porosity on P-wave azimuthal amplitude response is small for moderate incidence angles. For fluid filled fractures P-wave anisotropy is mildly affected. For dry fractures the difference in P-wave anisotropy between low and high fracture porosities is high. This suggests that an assumption of overburden isotropy may result in a large error in predicting the fluid type and saturation.
Pengaruh literasi dan pendapatan terhadap keputusan berwakaf uang melalui LKS-PWU di Kota Surabaya Fatkhan, Fatkhan; Anwar , Moch. Khoirul
Fair Value: Jurnal Ilmiah Akuntansi dan Keuangan Vol. 5 No. 1 (2022): Fair Value: Jurnal Ilmiah Akuntansi dan Keuangan
Publisher : Departement Of Accounting, Indonesian Cooperative Institute, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (691.077 KB) | DOI: 10.32670/fairvalue.v5i1.1904

Abstract

The purpose of this study was to determine the effect of literacy and income levels on cash waqf decisions at islamic financial institutions receiving cash waqf in the city of surabaya. The independent variable in this study consisted of 2 variables, namely literacy and income, while the dependent variable in this study was the decision to endow cash in lks-pwu. This study uses a quantitative method with a sample of 100 respondents. The questionnaire was distributed using right and wrong answers according to the guidelines of the indonesian waqf board ilw in measuring literacy levels. While the statements for other variables use a likert scale. The results of this study indicate that the literacy variable has an effect on the cash waqf decision variable in lks-pwu surabaya city. In addition, the income variable also affects the cash waqf decision variable in lks-pwu. The results of the coefficient of determination test (r square) show that literacy and income variables have a simultaneous effect of 37.7% on the decision to endow cash in lks-pwu.
Co-Authors Anwar , Moch. Khoirul Irawan, Jefri B. Triyoso, Triyoso Viony, Natasha C.