Article Per Year (5 Year)
p-Index From 2020 - 2025
5.787
P-Index
This Author published in this journals
All Journal BULLETIN OF THE MARINE GEOLOGY Community Empowerment Jurnal Penelitian dan Karya Ilmiah Lembaga Penelitian Universitas Trisakti JUARA: JURNAL WAHANA ABDIMAS SEJAHTERA Journal of Geoscience Engineering and Energy (JOGEE) JURNAL ABDI MASYARAKAT INDONESIA (JAMIN) Jurnal Eksakta Kebumian Berita Sedimentologi Science and Technology: Jurnal Pengabdian Masyarakat Scientific Contribution Oil and Gas LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI
Syavitri, Dewi
Universitas Trisakti
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Veterinary Other

Published : 28 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 28 Documents
Search

 1   2   3 
NANOFOSIL PADA SUMUR “LN” DI DAERAH CEKUNGAN JAWA TIMUR BAGIAN UTARA : NANOFOSCIL AT “LN” WELL IN THE NORTHERN EAST JAVA BASIN AREA luvina nabila rawy anggrainy; Rendy Rendy; Dewi Syavitri
Journal of Geoscience Engineering & Energy (JOGEE) VOLUME 4, NOMOR 2, AGUSTUS 2023
Publisher : Universitas trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v4i2.15986

Abstract

Tahap awal meliputi studi litelatur yaitu mempelajari dan mengetahui kondisi serta karakteristik umum pada lokasi penelitian. Tahapan ini terdiri dari studi litelatur yang digunakan sebagai pedoman awal untuk mengetahui kesampaian, karakteristikk, dan kondisi daerah penelitian, tahapan berikutnya yaitu Analisis data sample mengunakan metode preparasi sample , tahapan akhir pembuatan biozonasi dan biostatigrafi mendapatkan hasil kesimpulan sebagai hipotesa dari penelitian. Didapatkan tiga jenis litologi batuan pada daerah penelitian yaitu, batupasir, batulempung, dan batuserpih. Berdasarkan satuan litostratigrafi dengan kesebandingan Formasi menurut Mudjiono, 2011 Satuan Perselingan Batu lempung dan batu serpih termasuk dalam Formasi Tawun dan Satuan Perselingan Batu lempung dan Batu serpih sisipan batupasir termasuk dalam Formasi Ngaryong dan ditemukan satu ketidakselarasan ditunjukkan dengan munculnya biodatum secara bersamaan Kandungan nanofosil pada daerah penelitian memiliki tingkat keragaman dan kelimpahan yang melimpah (Common) – sedikit melimpah (Few). Ditemukan sebanyak 15058 spesimen nanofosil dan 26 spesies nanofosil. The initial stage includes a literature study, namely studying and knowing the general conditions and characteristics of the research location. This stage consists of a literature study that is used as an initial guide to determine the accomplishments, characteristics, and conditions of the research area, the next stage is sample data analysis using the sample preparation method, the final stage of making biozonation and biostatigraphy gets the conclusions as a hypothesis from the research. Three types of rock lithology were found in the study area, namely, sandstone, claystone, and shale. Based on lithostratigraphic units with formation comparability according to Mudjiono, 2011 Claystone and shale intercalation units are included in the Tawun Formation and Sandstone intercalated claystone and shale intercalation units are included in the Ngaryong Formation and an unconformity was found as indicated by the appearance of biodatum concomitantly containing nanofossils in the study area has a high level of diversity and abundance (Common) - a little abundant (Few). 15058 nanofossil specimens and 26 nanofossil species were found.
Education about the quality of groundwater for the people of Meruyung Village, Limo District, Depok Dewi Syavitri; Ramadhani Yaniar; Yarra Sutadiwiria; Rendy Rendy; Rosmalia Ditha Nugraheni; Cahyaningratri Primadani; Suci Maharani; Lalita A'fin; Firman Herdiansyah
Community Empowerment Vol 8 No 10 (2023)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ce.9698

Abstract

The city of Depok supports the capital city of Indonesia and experiences rapid population growth. As the population grows, the need for clean water becomes a significant concern in the area. According to data collected from 12 water samples in Cilodong District, Depok, all of them were found to be acidic and unsuitable for drinking. This community service initiative aims to provide the public with knowledge about techniques for building septic tanks that comply with regulations. Additionally, the public is educated on how to determine the characteristics of groundwater suitable for consumption. Counseling sessions were conducted at the Meruyung Village Office in Limo District, Depok City, and were attended by 26 Meruyung Village residents. The results of the program demonstrated an increase in public understanding of groundwater quality, rising from 74.5% to 89.5%.
NANOFOSIL PADA SUMUR “LN” DI DAERAH CEKUNGAN JAWA TIMUR BAGIAN UTARA : NANOFOSCIL AT “LN” WELL IN THE NORTHERN EAST JAVA BASIN AREA rawy anggrainy, luvina nabila; Rendy, Rendy; Syavitri, Dewi
Journal of Geoscience Engineering and Energy VOLUME 4, NOMOR 2, AGUSTUS 2023
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v4i2.15986

Abstract

Tahap awal meliputi studi litelatur yaitu mempelajari dan mengetahui kondisi serta karakteristik umum pada lokasi penelitian. Tahapan ini terdiri dari studi litelatur yang digunakan sebagai pedoman awal untuk mengetahui kesampaian, karakteristikk, dan kondisi daerah penelitian, tahapan berikutnya yaitu Analisis data sample mengunakan metode preparasi sample , tahapan akhir pembuatan biozonasi dan biostatigrafi mendapatkan hasil kesimpulan sebagai hipotesa dari penelitian. Didapatkan tiga jenis litologi batuan pada daerah penelitian yaitu, batupasir, batulempung, dan batuserpih. Berdasarkan satuan litostratigrafi dengan kesebandingan Formasi menurut Mudjiono, 2011 Satuan Perselingan Batu lempung dan batu serpih termasuk dalam Formasi Tawun dan Satuan Perselingan Batu lempung dan Batu serpih sisipan batupasir termasuk dalam Formasi Ngaryong dan ditemukan satu ketidakselarasan ditunjukkan dengan munculnya biodatum secara bersamaan Kandungan nanofosil pada daerah penelitian memiliki tingkat keragaman dan kelimpahan yang melimpah (Common) – sedikit melimpah (Few). Ditemukan sebanyak 15058 spesimen nanofosil dan 26 spesies nanofosil. The initial stage includes a literature study, namely studying and knowing the general conditions and characteristics of the research location. This stage consists of a literature study that is used as an initial guide to determine the accomplishments, characteristics, and conditions of the research area, the next stage is sample data analysis using the sample preparation method, the final stage of making biozonation and biostatigraphy gets the conclusions as a hypothesis from the research. Three types of rock lithology were found in the study area, namely, sandstone, claystone, and shale. Based on lithostratigraphic units with formation comparability according to Mudjiono, 2011 Claystone and shale intercalation units are included in the Tawun Formation and Sandstone intercalated claystone and shale intercalation units are included in the Ngaryong Formation and an unconformity was found as indicated by the appearance of biodatum concomitantly containing nanofossils in the study area has a high level of diversity and abundance (Common) - a little abundant (Few). 15058 nanofossil specimens and 26 nanofossil species were found.
Indonesian Stratigraphic Lexicon: Past, Present and Future Darman, Herman; Permana, Asep; Syavitri, Dewi
Berita Sedimentologi Vol 49, No 3 (2024)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51835/bsed.2024.49.3.444

Abstract

The Stratigraphic Lexicon is an important source of regional geological information. Due to the development of the science and the geological understanding, the lexicon needs to be updated. Following the first Indonesian Stratigraphic Lexicon by Marks (1957), Harahap et al. (2003) made an update to the lexicon. The latter version was later published online as a website. A GIS format of the lexicon will soon be available for geoscientists to use. This paper also provides suggestions for improving the lexicon, which includes the preparation of logs type for each section. A systematic approach to periodically ever greening the lexicon is necessary. The Geological Survey of Indonesia and the Indonesian Association of Geologists should be involved in the future improvement of the lexicon.
NANOFOSIL PADA SUMUR “LN” DI DAERAH CEKUNGAN JAWA TIMUR BAGIAN UTARA : NANOFOSCIL AT “LN” WELL IN THE NORTHERN EAST JAVA BASIN AREA Nabila Rawy Anggrainy, Luvina; Rendy; Syavitri, Dewi
Jurnal Eksakta Kebumian Vol. 3 No. 1 (2022): JURNAL EKSAKTA KEBUMIAN (JEK)
Publisher : Fakultas Teknologi Kebumian dan Energi, Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jek.v3i1.16108

Abstract

Tahap awal meliputi studi litelatur yaitu mempelajari dan mengetahui kondisi serta karakteristik umum pada lokasi penelitian. Tahapan ini terdiri dari studi litelatur yang digunakan sebagai pedoman awal untuk mengetahui kesampaian, karakteristikk, dan kondisi daerah penelitian, tahapan berikutnya yaitu Analisis data sample mengunakan metode preparasi sample , tahapan akhir pembuatan biozonasi dan biostatigrafi mendapatkan hasil kesimpulan sebagai hipotesa dari penelitian. Didapatkan tiga jenis litologi batuan pada daerah penelitian yaitu, batupasir, batulempung, dan batuserpih. Berdasarkan satuan litostratigrafi dengan kesebandingan Formasi menurut Mudjiono, 2011 Satuan Perselingan Batu lempung dan batu serpih termasuk dalam Formasi Tawun dan Satuan Perselingan Batu lempung dan Batu serpih sisipan batupasir termasuk dalam Formasi Ngaryong dan ditemukan satu ketidakselarasan ditunjukkan dengan munculnya biodatum secara bersamaan Kandungan nanofosil pada daerah penelitian memiliki tingkat keragaman dan kelimpahan yang melimpah (Common) – sedikit melimpah (Few). Ditemukan sebanyak 15058 spesimen nanofosil dan 26 spesies nanofosil  Kata kunci: Nanofosil gampingan, , Cekungan Jawa Timur Utara.   ABSTRACT The initial stage includes a literature study, namely studying and knowing the general conditions and characteristics of the research location. This stage consists of a literature study that is used as an initial guide to determine the accomplishments, characteristics, and conditions of the research area, the next stage is sample data analysis using the sample preparation method, the final stage of making biozonation and biostatigraphy gets the conclusions as a hypothesis from the research. Three types of rock lithology were found in the study area, namely, sandstone, claystone, and shale. Based on lithostratigraphic units with formation comparability according to Mudjiono, 2011 Claystone and shale intercalation units are included in the Tawun Formation and Sandstone intercalated claystone and shale intercalation units are included in the Ngaryong Formation and an unconformity was found as indicated by the appearance of biodatum concomitantly containing nanofossils in the study area has a high level of diversity and abundance (Common) - a little abundant (Few). 15058 nanofossil specimens and 26 nanofossil species were found  Keywords: Limestone nanofossils, North East Java Basin  
ANALISIS PENCEMARAN AIR TANAH BERDASARKAN PENATAAN JARAK SUMUR GALI DENGAN TANGKI SEPTIK DI KELURAHAN SUKAMAJU, DEPOK, JAWA BARAT Syavitri, Dewi; Khadafi, Khadafi; Yuslim, Silia; Amri, Adimas
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Volume 9, Nomor 1, Januari 2024
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/pdk.v9i1.19071

Abstract

Penelitian ini bertujuan untuk mengetahui apakah terdapat keterkaitan antara kualitas air tanah dengan penataan jarak sumur gali air bersih terhadap tangki septik. Penelitian dilakukan di Kelurahan Sukamaju, Depok, Jawa Barat, dengan mengamati 6 lokasi pengamatan untuk mengetahui kedalaman air tanah, jarak dan posisi sumur gali terhadap tangki septik. Selain itu conto air juga diambil untuk mengetahui apakah terdapat kandungan bakteri Escherchia coli dalam air sumur gali tersebut. Berdasarkan hasil pengukuran terhadap tinggi air tanah dan bantuan software Arc GIS, diketahui arah aliran air tanah bergerak dari Selatan ke Utara dan dari hasil pengamatan diketahui 2 lokasi pengamatan memiliki jarak antara tangki septik dengan sumur gali dibawah ketentuan SNI. Adapun berdasarkan hasil analisis laboratorium mikrobiologi, diketahui 1 titik lokasi pengamatan mengalami kontaminasi bakteri Escherchia coli yang diperkirakan penyebabnya adalah jarak antara sumur gali dengan tangki septik dibawah persyaratan, meskipun arah aliran berlawanan dengan posisi tangki septik. Berdasarkan data tersebut disimpulkan untuk Kelurahan Sukamaju, Depok, secara umum memiliki kualitas air tanah dan penataan jarak sumur gali terhadap tangki septik yang baik.
Pengolahan Limbah Sisa Sayuran dan Buah menjadi Pupuk Kompos Setiati, Rini; Widiyatni , Harin; Syavitri, Dewi; Rakhmanto, Priagung
Science and Technology: Jurnal Pengabdian Masyarakat Vol. 1 No. 3 (2024): September
Publisher : CV. Science Tech Group

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69930/scitech.v1i3.99

Abstract

Limbah organik dari hasil pengolahan sayur dan buah-buahan merupakan limbah yang ditemukan sehari-hari. Umumnya limbah organik tersebut tidak melalui proses pengolahan terlebih dahulu, sehingga tidak menghasilkan nilai tambah. Pada dasarnya, limbah organik dapat dimanfaatkan sebagai bahan dasar pembuatan produk lain dengan nilai ekonomi yang tinggi seperti pupuk kompos. Pupuk kompos merupakan pupuk berbahan dasar organik dengan bahan dasar seperti sayur, daun, buah-buahan, dan bahan-bahan organik lainnya. Pupuk kompos memiliki sejumlah fungsi penting dalam proses perbaikan tekstur dan struktur lahan seperti peningkatan aerasi dan drainase, sehingga meminimalisir terjadinya erosi tanah. Peralatan yang digunakan dalam pembuatan kompos antara lain adalah pencacah sampah, gembor, sapu, karung, sekop, terpal, dan alat penggaruk. Adapun bahan dari pembuatan kompos antara lain adalah sampah organik, larutan berisi mikroba (EM-4), air dan tanah. Untuk menghasilkan kompos, diperlukan sebuah biodekomposer atau aktivator yang digunakan untuk meningkatkan laju proses pengomposan yang membutuhkan waktu setidaknya 1 bulan. Pada tahap akhir pembuatan kompos, terjadi perubahan warna sampah dari hijau ke coklat kehitaman yang menandakan bahwa kompos telah siap untuk dimanfaatkan. Pembuatan kompos terbukti dapat meningkatkan pemanfaatan sampah, seraya menjadi solusi terhadap permasalahan lingkungan. Kemampuan untuk mengolah sampah menjadi kompos ini dapat menjadi komoditas bernilai tambah dan memberikan dampak ekonomi yang positif bagi masyarakat.
The Linear and Non-Linear Background Energy Approach in The Seismic S/N Ratio Enhancement Imam Setiaji Ronoatmojo; Yarra Sutadiwiria; Muhammad Burhannudinnur; Dewi Syavitri
Scientific Contributions Oil and Gas Vol. 46 No. 2 (2023): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.46.2.318

Abstract

Side-swept is often understood as a side sweep of seismic waves that occurs on the surface. This understanding creates confusion when considering that side-swept is a part of linear function, in fact side-swept could be in the form of sweeping waves from the reflector on the side, so side-swept is a non-linear function like a signal. The implications for noise reduction with the t-p transformation becomes more complex. The elimination of side-swept in this study, relies on an application using an algorithm developed by Hampson (1987). Initial data conditioning preparation should be needed to clarify the difference between linear and non-linear functions through static refraction correction and velocity analysis, then coherent noise elimination (ground-droll) is carried out through f-k domain transformation, as well as random noise through f-x domain transformation. Side-swept is eliminated in t-p domain. Energy observation shows the remaining noise energy caused by coherent noise, random noise and non-linear side-swept functions. It proves that it is difficult to remove a non-linear function that overlaps the reflector signal. The best step is to minimize coherent (linear) noise and random noise by consistently using an amplitude correction indicator on the surface and performing velocity analysis especially for the suspected power spectrum as an effort to attenuate side-swept wave interference on the reflector signal. Finally, the signal restoration efforts due to non-linear noise attenuation, is carried out by surface consistent deconvolution
Oil to Source Rock Correlation of Besuki Area and its Role in Petroleum System of Banyumas Basin Yarra Sutadiwiria; Eko Bayu Purwasatriya; Cahyaningratri P R; Dewi Syavitri; Mustamina Maulani; Asy’ari Alfin Giovany; Anjar Kurnia Ramadhan
Scientific Contributions Oil and Gas Vol. 45 No. 3 (2022): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

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

Abstract

Banyumas Basin is a basin that has signs of the presence of hydrocarbons, including oil and gasseep on the surface, which indicates active petroleum systems in the subsurface. A lot of oil and gas seeps werefound in Banyumas Basin, including oil seeps in Cipari and Besuki, while gas seeps were found in Mount Wetan,Karanglewas, and also Cipari. Exploration drilling wells have also been carried out, such as the Jati-1 Well, KarangNangka-1, Karang Gedang-1, Tjipari-1, and Mount Wetan-1, but there still has been no significant evidenceof this basin producing hydrocarbons. The TOC value of the outcrop samples taken in Cipari and Besuki have badvalues, while the crude oil has reflected a severe biodegradation process. Both oil seep samples and one extractbitumen contained high bicadinane (R (resin) annotation) and oleanane indicating both oils and extract to have aninput to Tertiary-sourced oils throughout Southeast Asia. Both oil seep samples do not exhibit similarity with theextract source rock. Based on this negative correlation there may be another source rocks in Banyumas Basin, derivedfrom rocks that are not only from Pemali Formation. The existence of this research is expected to be able toadd geological data, especially hydrocarbon geochemical data in Banyumas Basin, so that it can provide evidenceof the prospect and calculation of reserves contained in this basin, and an understanding of the source rock it self.
The Influence of Side-Slip Velocity on Subsurface Displacement Imam Setiaji Ronoatmojo; Muhammad Burhannudinnur; Yarra Sutadiwiria; Dewi Syavitri
Scientific Contributions Oil and Gas Vol. 47 No. 2 (2024): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

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

Abstract

This research aimed to determine the influence of side-slip velocity on subsurface displacement during seismic data acquisition. Anisotropy constants were used to determine the depth migration process before stack, which showed inadequate results after data validation. Therefore, the forward modeling of a medium, which comprised anisotropy constants of normal and offset raytracing was conducted to address this problem. The configuration of source to receiver were orthogonal and slant. The results showed that the migration process failed to resolve the geological structures of the position shifting. The configuration of source to receiver were orthogonal and slant. The results show the better continuity of slant and the influence of complex geological structures controls the position shifting, which could not be resolved by the migration process. It could be seen from the random distribution of the normal shift of group velocity and phase velocity, as well as the CDP – CRP shift. It produced wave azimuth rotation in a discontinuity plane, such as fault and anticline ridge. This azimuth rotation was strongly suspected to cause inaccurate anisotropy constants implementation in pre-stack depth migration process. Keywords: side-slip velocity, anisotropy constants, migration, normal displacement, CDP-CRP displacement
Co-Authors Abdurrahman Assegaf Agus Guntoro Ali Jambak Alya Zauza Putri Amri, Adimas Andy Livsey Anjar Kurnia Ramadhan Asep Permana, Asep Assegaf, Abdurrahman Asy’ari Alfin Giovany Athallah, Fahd Nibel Barona Belladesta Budi Wijaya Budi Wijaya Budi Wijaya Cahyaningratri Cahyaningratri P R Cahyaningratri P.R. Cahyaningratri Primadani Darman, Herman Denny Suwanda Djohor Deny Deny, Deny Djohor, Denny Suwanda Eko Bayu Purwasatriya Eko Widianto Eko Widianto Fahd Nibel Athallah Fahlevi, Muhammad Rubby Fajar Hendrasto Firman Herdiansyah Firman Herdiansyah Firman Herdiansyah Firman Herdiansyah Firman Herdiansyah, Firman Guntoro, Agus Hafiz, Surya Darma Harin Widiyatni Hendrasto, Fajar Imam Setiaji Ronoatmojo Imam Setiaji Ronoatmojo Irfan Marwanza, Irfan Jambak, Moehammad Ali Khadafi, Khadafi KHADAFI, MUHAMMAD Kurniawan, Muhammad Alvin Lalita A'fin Lalita ‘Afin Lestari, Arini Dian Luvina Nabila Rawy Anggrainy luvina nabila rawy anggrainy Moeh. Ali Jambak, Moeh. Ali Moehammad Ali Jambak Muhammad Alvin Kurniawan Muhammad Burhannudinnur Muhammad Khadafi Muhammad Rubby Fahlevi Muhammad Taufiq Fathaddin, Muhammad Taufiq Mustamina Maulani Nabila Rawy Anggrainy, Luvina Nadhia Noor Syarifa Pri Agung Rakhmant Pri Agung Rakhmanto puri wijayanti Putri, Alya Zauza Qurotu Aini Besila Rakhmanto, Priagung Ramadhani Yaniar Ratih Yuni Astuti rawy anggrainy, luvina nabila Reiza , Baskoro Rendy Rendy Rendy Rendy Rini Setiati Rosmalia Dita Nugraheni Rosmalia Ditha Nugraheni Silia Yuslim Sofyan Rachman Sofyan Rachman, Sofyan Suci Maharani Suliestyah Suliestyah Suliestyah, Suliestyah Sulistiyanto, Teguh Eko Sumarsih . . Surya Darma Hafiz Suryo Prakoso Tengku Rafiyansyah Fajri Yarra Sutadiwiria Yeftamikha Yeftamikha