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All Journal Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics Jurnal Pendidikan dan Pembelajaran Khatulistiwa (JPPK) Journal of Geoscience, Engineering, Environment, and Technology Jurnal Geosains dan Teknologi JURNAL PENDIDIKAN TAMBUSAI
Herawati, Ida
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Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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PENGGUNAAN MODEL WORDSQUARE DALAM MENINGKATKAN HASIL BELAJAR PKN DI KELAS IV Herawati, Ida; Salimi, Asmayani; Halidjah, Siti
Jurnal Pendidikan dan Pembelajaran Khatulistiwa Vol 7, No 3 (2018): Maret 2018
Publisher : Jurnal Pendidikan dan Pembelajaran Khatulistiwa

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Abstrak General purpose of research to improve student learning outcomes through wordsquare model. Descriptive Method in the form of Classroom Action Research, is collaborative. Data collection techniques used are the technique of direct observation and measurement by means of data collection is the Student Worksheet. Setting research with the subject of Teachers / Researchers and students of class IV amounted to 33 students.1) The ability of teachers planning learning wordsquare model experienced an average increase of 0.35 with an average value of 3.64. 2) The ability of teachers to implement learning model wordsquare experienced an average increase of 0.28 with an average value of 3.55. 3) Students' learning outcomes of the wordsquare model experienced an increase in cycles of 8.30 with an average score of 65.04. Conclusion and suggestion: the use of wordsquare model in learning Citizenship Education can improve student learning outcomes, teachers are expected to use wordsquare model in improving student learning outcomes in the future Keywords: Learning outcomes, Wordsquare Model, Citizenship Education.
MENINGKATKAN HASIL BELAJAR IPA MELALUI MODEL PEMBELAJARAN KOOPERATIF STADSISWA KELAS VIII B SMP NEGERI 1 BANGKINANG TAHUN PELAJARAN 2015/2016 Herawati, Ida
Jurnal Pendidikan Tambusai Vol. 1 No. 1 (2017): December 2017
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v1i1.47

Abstract

Tujuan penelitian ini adalah: (1) Meningkatkan aktivitas belajar klasikal (2) Meningkatkan aktivitas belajar kelompok. (3) Meningkatkan hasil belajar IPA siswa kelas VIII B SMP Negeri 1 Bangkinang. Metode yang digunakan dalam penelitian ini adalah Penelitian Tindakan Kelas (PTK). PTK ini menggunakan model pembelajaran kooperatif tipe STAD yang terdiri dari 6 langkah yaitu: menyampaikan tujuan dan memotivasi siswa, menyajikan informasi, mengorganisasikan siswa ke dalam kelompok – kelompok belajar, evaluasi, memberikan penghargaan. Hasil penelitian menunjukkan bahwa dengan menggunakan model pembelajaran STAD pada pembelajaran IPA aktivitas belajar klasikal, aktivitas belajar kelompok dan hasil belajar siswa setiap siklusnya mengalami perubahan secara signifikan. Siswa yang aktif secara klasikal dalam pembelajaran mencapai skor 34,57 % pada Siklus I dan pada siklus II mencapai skor 69,14 %. Hasil penilaian aktivitas belajar kelompok siklus I skor A mencapai 40% dan pada siklus II Skor A mencapai 83,33%. Sedangkan hasil belajar siswa pada siklus I pertemuan 1 ketuntasannya mencapai 70,37%, lalu meningkat pada siklus II pertemuan 2 menjadi ketuntasan 96,30%..
Reservoir Characterization Using Amplitude Versus Offset (AVO) Analysis of Lakota Formation, Teapot Dome Field, Wyoming, USA Samudera, Nadia; Herawati, Ida
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics AL-FIZIYA JOURNAL OF MATERIALS SCIENCE, GEOPHYSICS, INSTRUMENTATION AND THEORETICAL PHYSICS VOL.7, N
Publisher : Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v7i1.38304

Abstract

Lakota Formation is one of the prolific  formations at Teapot Dome Field. The objective of this study is to analyze hydrocarbon potential of Lakota Formation using Amplitude Versus Offset (AVO) analysis. AVO analysis is performed to determine AVO class, intercept (A) and gradient (B) values of Lakota reservoir. This study uses pre-stack 3D gather data and three wells, 17-WX-21, 48-X-28 and 41-2-X-3. The Lakota formation is known to be an oil-bearing sandstone reservoir which supported by log interpretation. Analysis of AVO modelling using well data by crossplotting reflectivity (R) with sin2 θ, shows that the Lakota Formation is in Class IIP for wells 17-WX-21 and 41-2-X-3 and Class II for well 48-X-28. An estimation of AVO intercept and gradient based on the seismic data show that the Lakota Formation is  class II AVO response. A-B plane shows that the pay zones of Lakota formation are fall within hydrocarbon zone, but very close to background trend (wet sands/shale). AVO attributes; A*B and scaled Poisson Ratio  at well location showing difficulty in differentiate the presence of oil and brine. Therefore, it can be concluded that AVO attributes can not distinguish between water and oil zone in Lakota Formation, and therefore we can not determine distribution of oil in the Lakota reservoir. 
Karakterisasi Reservoir Hidrokarbon Menggunakan Analisis Seismik Multi-atribut di Lapangan Teapot Dome, Wyoming, USA Herawati, Ida
Jurnal Geosains dan Teknologi Article in progress
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jgt.0.0.0.%p

Abstract

Inversi seismik merupakan metode yang umum digunakan dalam karakterisasi reservoir hidrokarbon. Namun, pendekatan ini terkadang belum cukup untuk merepresentasikan hubungan antara parameter seismik dan properti fisik batuan reservoir. Oleh karena itu, analisis seismik multi-atribut digunakan untuk meningkatkan korelasi antara kedua parameter tersebut. Penelitian ini bertujuan menganalisis distribusi porositas menggunakan analisis multi-atribut, serta mengevaluasi kualitas reservoir berdasarkan hasil estimasi porositas pada zona F1WC dan F2WC dari Formasi Frontier di Lapangan Teapot Dome. Data penelitian mencakup log sumur dari empat sumur (48-X-28, 88-DX-3, 67-1-TpX-10, dan 64-JX-15) serta data seismik 3D post-stack. Inversi berbasis model dilakukan untuk memperoleh volume impedansi akustik, yang kemudian digunakan sebagai masukan dalam analisis multi-atribut bersama atribut seismik lainnya. Korelasi antara porositas hasil multi-atribut dengan porositas dari log mencapai 0,766 dengan estimasi porositas berkisar 15–19%. Zona F1WC mempunyai porositas tertinggi (18%) di sumur 48-X-28 berasosiasi dengan impedansi akustik rendah, sedangkan area selatan (sekitar sumur 64-JX-15) memiliki porositas lebih rendah (17%) dengan impedansi akustik tinggi. Sebaliknya, zona F2WC memberikan porositas lebih rendah (16–17%) namun lebih konsisten antar sumur dan selaras dengan pola struktur. Meskipun sumur 64-JX-15 tetap menunjukkan porositas rendah dan impedansi tinggi, zona F2WC merepresentasikan kontrol kompaksi lebih stabil serta potensi reservoir lebih baik dibandingkan F1WC.
Seismic Multiattribute Application for Porosity Distribution at F3 Block, North Sea Nurrochmah, Andryana Miftah; Herawati, Ida
Journal of Geoscience, Engineering, Environment, and Technology Special Issue from The 2nd International Conference on Upstream Energy Technology and Digitalization
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.1.24297

Abstract

Reservoir characterization is essential in hydrocarbon exploration to understand subsurface properties, with porosity being a key indicator of storage capacity. This study focuses on mapping porosity in the FS8 interval of the F3 Block, North Sea, using a linear multi-attribute seismic approach. Post-stack seismic and well log data from four wells were utilized. A cross-plot of acoustic impedance (AI) and porosity logs shows a strong correlation, suggesting AI can be a useful attribute in the analysis. Acoustic impedance volumes were generated through model-based inversion, and a set of seismic attributes was selected using a stepwise regression method. The selected attributes—acoustic impedance, filtered impedance, amplitude envelope, and integrated absolute amplitude—were used to predict porosity values across the seismic volume. Cross-validation shows high correlation coefficients (training: 0.861; validation: 0.824) and low prediction errors (5.2% and 5.8%, respectively), indicating robust prediction accuracy. The resulting porosity distribution map reveals a spatial trend, with higher porosity in the shallower western area and lower porosity in the deeper eastern area.
Co-Authors Asmayani Salimi Nurrochmah, Andryana Miftah Samudera, Nadia Siti Halidjah