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All Journal JURNAL FISIKA SCHOOL EDUCATION JOURNAL PGSD FIP UNIMED Jurnal Fisika FLUX PROSIDING SEMINAR NASIONAL CENDEKIAWAN Science and Technology Indonesia JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) Communications in Science and Technology Jurnal Teori dan Aplikasi Fisika Journal of Applied Engineering and Technological Science (JAETS) Jurnal Abdi Masyarakat Indonesia Automotive Experiences Jurnal Penelitian dan Karya Ilmiah Lembaga Penelitian Universitas Trisakti INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Jurnal AKAL: Abdimas dan Kearifan Lokal Petro : Jurnal Ilmiah Teknik Perminyakan JURNAL ABDI MASYARAKAT INDONESIA (JAMIN) Wahana Fisika : Jurnal Fisika dan Terapannya JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) Scientific Contributions Oil and Gas

Cahaya Rosyidan

Universitas Trisakti

Author-ID : 506856

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

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MODIFICATION OF NATURAL BENTONTE WITH POLICATION OF Al FROM AlCl3 AS A PILLARING AGENT IN PRODUCED WASTE WATER Ammar Ammar; Suryo Prakoso; Cahaya Rosyidan
PETRO: Jurnal Ilmiah Teknik Perminyakan Vol. 11 No. 1 (2022): MARET
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

The oil and gas production process will produce oil, gas and water. The water that is also produced will be used as an injection to push the remaining oil that is still in the reservoir. The purpose of this study was to determine the increase in the adsorption efficiency of bentonite that has been modified by the Al polycation of AlCl3. This research begins with the preparation and purification of impurities and then modifies it with the intercalation process of Na ions from the NaCl intercalator, then pillared with the pillaring agent AlCl3. Natural bentonite resulting from intercalation, and pillarization was characterized and tested. The characterization results showed an increase in Na ions in intercalated bentonite and an increase in Al ions in Al pillared bentonite or pillarized bentonite. The results of the study provide evidence that the absorption of an adsorbent is influenced by the concentration of the adsorbent, surface area, temperature, solution pH, and the effect of contact time. This research shows that the adsorption isothermal used is the Freundlich isothermal.

PELATIHAN LUMPUR PEMBORAN BERBAHAN DASAR AIR ASIN BAGI GURU DAN SISWA SMK MIGAS CIBINONG, JAWA BARAT Cahaya Rosyidan; Bayu Satiyawira; Mustamina Maulani; Havid Pramadika; Maman Djumantara; Asri Nugrahanti; Arinda Riswati
Jurnal Abdi Masyarakat Indonesia (JAMIN) Vol 1 No 1 (2019): JURNAL ABDI MASYARAKAT INDONESIA (JAMIN)
Publisher : Universitas Trisakti

Pada operasi pemboran digunakan fluida pemboran untuk membantu kelancaran operasi pemboran. Fluida tersebut adalah lumpur pemboran dan lumpur. Lumpur pemboran yang digunakan ada dua jenis yaitu lumpur berbahan dasar air dan minyak. Lumpur berbahan dasar air sering digunkan pada operasi pemboran karena lebih murah. Namun pada kondisi terterntu harus ditambahkan zat aditif. Kegiatan PKM ini bertujuan untuk mengenalkan kepada mahasiswa bagaimana membuat lumpur pemboran berbahan dasar air asin. Selain itu siswa – siswa SMK diharapkan mampu untuk menggunakan alat – alat praktikum dan bahan – bahan kimia yang digunakan. Sebelum memulai kegiatan pelatihan semua alat – alat yang digunakan harus di kalibrasi terlebih dahulu untuk mengetahui kelayakan dari alat tersebut. Sehingga data yang diperoleh valid dan dapat dipertanggung jawabkan oleh para siswa. Kegiatan pemboran dikenal sebagai suatu kegiatan yang sangat berbahaya, beresiko tinggi, dan berbiaya tinggi. Penggunaan lumpur pemboran yang baik, akan dapat meningkatkan produktivitas kegiatan pemboran.

ANALISIS KEEKONOMIAN PADA SKEMA PSC GROSS SPLIT DENGAN MENGGUNAKAN TIGA SKENARIO HARGA hanz seca rifansyah cipta maheza; Ir Bayu Satiyawira M.Si; Dra. Lisa Samura, M.T; Puri Wijanti; Mustamina Maulani; Cahaya Rosyidan
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 11 No. 3 (2022): SEPTEMBER
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/petro.v11i`3.14381

Lapangan HNZ merupakan lapangan yang memiliki potensi besar dalam memproduksikan minyak bumi, dengan memiliki 6 sumur infill, 2 injeksi dan 1 step out. Dalam memproduksikan minyak bumi, pada saat ini Indonesia memiliki dua skema kontrak yang berlaku yaitu skema kontrak PSC cost recovery dan skema kontrak PSC gross split. Skema PSC gross split merupakan skema yang dikeluarkan oleh pemerintah Indonesia sebagai pembanding dari skema kontrak PSC cost recovery yang sudah digunakan sebelumnya yang dianggap sebagai skema kontrak yang kurang efektif digunakan dan dirasa bahwa skema kontrak PSC cost recovery ini merugikan bagi pihak pemerintah. Maka melalui Permen ESDM No. 52 tahun 2017 yang merupakan hasil revisi dari Peraturan Menteri ESDM No.08 tahun 2017, dikeluarkanlah skema PSC gross split dengan skema dimana pihak kontraktor akan menanggung seluruh biaya operasional pengembangan lapangan migas. Pada penelitian kekonomian pada lapangan HNZ bertujuan untuk mengetahui bagaimana keekonomian pada lapangan HNZ menggunakan PSC gross split.

PEMANFAATAN KOMPOSIT NATURAL BENTONITE DAN AMPAS TEBU SEBAGAI PENJERNIH AIR LIMBAH INDUSTRI TAHU HARAPAN MAJU Lisa Samura; Muhammad Burhannudinnur; Suryo Prakoso; Cahaya Rosyidan; Raka Handika Putra; Gemintang Atlantika Urbiyanto; Hilyah Auliya
Jurnal Abdi Masyarakat Indonesia (JAMIN) Vol 4 No 2 (2022): JURNAL ABDI MASYARAKAT INDONESIA (JAMIN)
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jamin.v4i2.13440

Industri tahu adalah industri yang didominasi oleh usaha-usaha skala kecil dengan modal yang terbatas dan tersebar di seluruh wilayah Indonesia. Salah satunya adalah industri tahu Harapan Maju (HS) di Cimanggis, Depok, Jawa Barat. Industri ini masih menggunakan cara tradisional dengan membuang limbah ke sungai. Jika langsung dibuang ke sungai, limbah tahu dapat mencemari lingkungan. Oleh karena itu sebelum limbah dibuang, sebaiknya dijernihkan terlebih dahulu untuk menjaga lingkungan. Salah satu metode penjernihan adalah dengan menggunakan bentonit dan karbon aktif ampas tebu. Bentonit memiliki kemampuan untuk menyerap zat organik yang baik dan mengikat padatan yang relatif kecil dalam air. Sedangkan karbon aktif ampas tebu berfungsi sebagai penjernih dan menyerap logam berat pada air limbah. Proses yang terjadi adalah proses adsorpsi atau proses pemisahan zat padat dari fluida dengan jalan melewatkan fluida melalui medium penyaring atau septum sehingga zat padat akan tertinggal pada medium. Teknologi sederhana ini sangat efektif bila diaplikasikan dalam pengolahan air limbah industri tahu. Sebelum pengujian nilai BOD 714 mg/L, TDS 1129 mg/L, COD 1152 mg/L dan pH air limbah adalah 4. Pengujian dengan menggunakan kombinasi ampas tebu dan bentonit pada sampel 2c yaitu ampas tebu 1 gr dan bentonit 0.1 gr memberikan hasil yang terbaik, dimana nilai BOD 142,8 mg/L, TDS 407 mg/L, COD 195,84 mg/L dan pH 6 yang memenuhi standar Permen LH no.51 tahun 1995.

BIBLIOMETRIC ANALYSIS ON NUMERICAL LITHOFACIES IDENTIFICATION FOR RESERVOIR CHARACTERIZATION IN THE PERIOD OF 1980 -2021 Imam Setiaji Ronoatmojo; Muhamad Apriniyadi; Rosmalia Dita Nugraheni; Cahyaningratri Prima Riyandhani; Cahaya Rosyidan Rosyidan; Yarra Sutadiwiria
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 11 No. 4 (2022): DESEMBER
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/petro.v11i4.14424

The term "electrofacies" was introduced in 1980 by Serra and Abbott, it had been developed promptly since 2009. The development was triggered predominantly by wireline logging technology and artificial intelligence technology. The electrofacies categorization was intended to facilitate the study of reservoir characterization. However, it is difficult to formulate deterministically, due to the uniqueness of the depositional environment and geological processes that involve many physical properties. At least, there are 369 articles which were obtained from Scopus sources in the period of 1980 - 2021. In this bibliometric analysis, we regrouped the articles into four groups, i.e. “pattern recognition” “facies analysis”, “objectives” and “quality”. This grouping was attained on the methods of co-occurences, co-authorship, citation analysis and bibliographic coupling using VOSviewer software. The distance and coupling between themes will determine the level of quality and quantity of discussion between them. The quality of the objective resides in the certainty value of the lithology controlled by transportation or diagenetic events. For example, sand and shale which are siliciclastic lithology will have a higher degree of certainty than carbonate rocks. Therefore, the wide gap occurred during the application of artificial intelligence, especially for complex facies and uncertain geological conditions. The application of artificial intelligence is not solely functional without involving geological analysis. The implication is some researchs are still needed from this point of view, so the electrofacies role cannot be independent without developing models of the diagenetic process.

EVALUASI PENANGGULANGAN LOST CIRCULATION LAPANGAN X Pauhesti Pauhesti; Alfiandi Sembiring; Maman Djumantara; Lisa Samura; Cahaya Rosyidan
PETRO: Jurnal Ilmiah Teknik Perminyakan Vol. 12 No. 2 (2023): JUNI
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/petro.v12i2.14383

Lost Circulation adalah sebuah kasus hilangnya sebagian atau seluruh sirkulasi lumpur pemboran masuk ke dalam formasi yang sedang dibor sehingga sirkulasi lumpur pemboran tidak sempurna. Pada kegiatan pemboran di Lapangan X ini, terdapat sumur yang diindikasi mengalami masalah yaitu Lost Circulation. Lost Circulation yang terjadi terindikasi berada pada Formasi Bekasap dengan lithologi batuan limestone. Pada sumur ini terjadi total lost, dimana penyebab Lost Circulation dikarenakan formasi yang memiliki lubang pori yang cukup besar sehingga terbentuk rongga-rongga atau terbentuk gua(cavern) dan tekanan Formasi lebih kecil daripada tekanan Hidrostatik begitu juga tekanan Formasi lebih kecil dari Tekanan Surge. Dimana setelah dilakukan perhitungan pada kedalaman 634 ft terjadi lost circulation atau hilangnya sirkulasi pada kedalaman 356 ft yang dimana sumur ini mengalami total lost. Didapatkan tekanan formasi 45 psi,tekanan hidrostatik 151.79 psi, tekanan rekah formasi 146.24 psi, EMW 7.9 psi, ECD 9.0 psi, BHCP 163.56 psi, dan Pressure surge 163.56 psi. Dapat disimpulkan lost terjadi karena Tekanan Hidrostatik lumpur yang melebihi tekanan formasi dan Tekanan Surge yang melebihi Tekanan Formasi sehingga menyebabkan formasi menjadi rekah. Kemudian dilakukan metode penanggulangan menggunakan Lost Circulation Material (LCM) CaCO3 Coarse dan Blind Drilling. Kata kunci: Hilang Lumpur, Lost Circulation

USE OF ANOVA STATISTICAL METHOD IN EVALUATION OF TOFU WASTEWATER USED FOR SPIRULINA CULTURE MEDIUM ENRICHED WITH UREA AND NaHCO3 Mustamina Maulani; Gabriella Jasmine; Rosmalia Dita Nugraheni; Maman Djumantara; Asri Nugrahanti; Bayu Satiyawira; Cahaya Rosyidan; Lisa Samura; Harin Widiyatni; Pauhesti Pauhesti
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 6, NUMBER 2, OCTOBER 2023
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v6i2.16933

Indonesia has a large amount of liquid waste originating from the tofu industry. Currently, the treatment of tofu industrial wastewater is carried out using both anaerobic and aerobic methods, but both methods still have several weaknesses. In this study, the tofu industrial wastewater was utilized as a culture medium for Spirulina sp. to provide economic value from wastewater that can be used as bioethanol, pharmaceuticals, and food products rich in omega 3, chlorophyll, carotenoids. Aim: The growth of Spirulina sp. is closely related to the availability of macro and micronutrients as nutrients and the influence of environmental conditions, so this study was aimed to see the best variation of the addition of urea and NaHCO3 as additional nutrients to maximize growth and cell density of Spirulina sp. with tofu industrial wastewater media. Methodology and Results: This study was done by culvitating Spirulina sp in the growth media, measuring the Optical Density (OD), and analyzing quantitatively and using ANOVA on IBM SPSS Statistics version 20. The study indicated that adding urea and NaHCO3 to Spirulina sp. had no effect on cell density and growth rate. Treatment with addition of urea 0.36 g/500 ml without additional of NaHCO3 had the highest growth rate, 0.00852/day, and the highest cell density value on Spirulina sp. growth. Conclusion, significance, and impact study: The tofu liquid waste can be used as a new alternative used as fertilizer because in the liquid tofu waste, it provides the nutrients needed by Spirulina sp.

SUATU STUDI PEMODELAN VISKOELASTIK MATERIAL BENANG VIZ 100% WOOL 36 TEX MENGGUNAKAN PENDEKATAN FISIKA Valentinus Galih Vidia Putra; Andrian Wijayono; Irwan .; Tina Martina; Cahaya Rosyidan
Wahana Fisika Vol 4, No 1 (2019): June
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/wafi.v4i1.15500

Suatu model matematis viskoelastik untuk menentukan besar koefisien viskos serta koefisien elastik suatu benang tekstil telah dikaji pada penelitian ini. Suatu persamaan matematis benang tekstil viz. 100% wool yang memiliki nomor benang 36 tex atau 36 (g/km) telah dirumuskan menggunakan mekanika klasik. Hasil studi memperlihatkan bahwa pemodelan ini dapat digunakan untuk menentukan sifat viskoelastik material berdasarkan sifat stress relaxation.

Rotating-Magnetic-Field-Assisted Electrodeposition of Copper for Ambulance Medical Equipment Syamsuir, Syamsuir; Susetyo, Ferry Budhi; Soegijono, Bambang; Yudanto, Sigit Dwi; Basori, Basori; Ajiriyanto, Maman Kartaman; Edbert, Daniel; Situmorang, Evi Ulina Margaretha; Nanto, Dwi; Rosyidan, Cahaya
Automotive Experiences Vol 6 No 2 (2023)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.9067

This study examines the influence of the application of a rotating magnetic field in the electrodeposition of copper (Cu). During the electrodeposition, five constant magnets were rotated (500 and 800 rpm) towards the bottom of the sample. To investigate deposition rate, surface morphology, phase, structure, corrosion resistance, and hardness in deposited Cu using a weighing scale, a scanning electron microscope equipped with energy dispersive spectroscopy (SEM-EDS), X-ray diffraction (XRD), potentiodynamic polarization, and hardness tester respectively. Bacterial activity was also evaluated through this research. Morphological surface observations showed that the increase in the rotational speed of the magnets during the electrodeposition process led to a smooth surface. A perfect Cu phase covers Al alloy with no oxide. The potentiodynamic polarization demonstrated by the increase in the rotating led to a shift to the more positive value of the corrosion potential. Moreover, the corrosion current also decreases with the increase in the rotating speed of the magnets. Less crystallite size promoted forming a higher hardness and inhibition zone of the Cu films.

Nickel Salt Dependency as Catalyst in the Plating Bath on the Film Properties of Cu/Cu-Ni Rosyidan, Cahaya; Kurniawan, Budhy; Soegijono, Bambang; Maulani, Mustamina; Samura, Lisa; Nababan, Frederik Gresia; Putra, Valentinus Galih Vidia; Susetyo, Ferry Budhi
Science and Technology Indonesia Vol. 9 No. 3 (2024): July
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2024.9.3.529-538

Metal plating frequently employs nickel (Ni) and copper (Cu) as anodes. Cu/ Cu-Ni film formed has many advantages, such as better corrosion resistance and high hardness characteristics. This study aims to assess the properties of Cu/Cu-Ni film, such as phase, surface morphology, crystallographic orientation, hardness, corrosion analysis, and contact angle, which were fabricated using electrodeposition with various Ni salt additions (0.3, 0.5 and 0.7 M). In addition, the cathode current efficiency (CCE) and deposition rate of the Cu/Cu-Ni electrodeposition were also investigated. An increase in Ni salt in the plating bath could enhance the pH, promoting higher CCE and depleting hydrogen evolution at the cathode, leading to the presenting Ni phase in the alloy. The higher concentration of Ni salt in the solution could also enhance the deposition rate due to a shift to a pH value, which affects the roughening of the surface morphology, promoting a higher contact angle. All crystal structures generated by Cu/Cu-Ni electrodeposition were FCC, with the preferred orientation of the (111) plane. Crystallite size and lattice strain depend on the deposition rate. Less crystallite size and lattice strain affect the film’s hardness and corrosion resistance. Moreover, the third bath had the resulting Cu-Ni layer with the best hardness and corrosion rate of around 136 HV and 0.081 mmpy.

Co-Authors - Sunardi - Sunardi Abdul Hamid Agus Jamaludin Agus Jamaludin Alfiandi Sembiring Alhamidi, A. Ali Aliya Mayendra Ammar Ammar Andreas Junianto Andreas Junianto Andry Prima Anggrainy, Rani Anugrah, Hanif Setia Aqlyna Fattahanisa Arinda Riswati Arkaan, Muhammad Dzaki Aryanto, Reza Asri Nugrahanti Asri Nugrahanti, Asri Aulia Alfath Auliya, Hilyah Bambang Soegijono Bambang Soegijono Basori Basori Basori Bayu Satiyawira Bayu Satyawira Bayu Satyawira Bayu Satyawira, Bayu Brilliani Budhy Kurniawan Bujasuandi Maulana Cahyaningratri Prima Riyandhani Dalimunthe, Yusraida Khairani Daniel Edbert Daniel Edbert, Daniel Dina Asmaul Chusniyah Dio Rekayandra Djunaedi Agus Wibowo Dwi Nanto, Dwi Dwi Nuryana, Suherman DWI YULIANTI Etty Mutiara Evi Ulina Margareta Situmorang Evi Ulina Margaretha Situmorang Ezenwune, Jose Andreas Fadhila Widya Hardi Ferry Budhi Susetyo Gabriella Jasmine Galih Vidia Putra, Valentinus Gemintang Atlantika Urbiyanto hanz seca rifansyah cipta maheza Harin Widiyatni Hasbi, Muhammad Yunan Havid Pramadika Havidh Pramadika Heri Hardiyanti Hidayat, Hifdzan Rizki Hidayat, Hifzhan Rizki Hilyah Auliya Imam Basori Imam Setiaji Ronoatmojo Irwan . Irwan . Irwan Irwan Jasmine, Gabriella kartika fajarwati hartono Kashah, Muhammad Refli Koesmawardani, Wildan Tri Kurniawan, Ova Livia Ailen Dharma Lubi, Ahmad Lukas Pearlo, Kevin M.T Fathaddin Maman Djumantara Maman Djumantara, Maman Maman Kartaman Ajiriyanto Mansor, Muhd Ridzuan Maulani, Mustamina Mentari Gracia Soekardy Michael, David Mixsindo Korra Herdyanti Mohamad, Juliany Ningsih Mohammad Apriniyadi Muh Taufiq Fathaddin Muhammad Burhannudinnur Muhammad Burhannudinnur Muhammad Burhannudinnur Muhammad Dzaki Arkaan Muhammad Yunan Hasbi Mulia Ginting, Mulia Muqafillah, Mochammad Fajr Dzakwan Mustamina Maulani Mustamina Maulani Nababan, Frederik Gresia Nadhira Andini Onnie Ridaliani Onnie Ridaliani, Onnie Pantjanita Novi Hartami Pauhesti Pauhesti Pauhesti Pauhesti Pauhesti Pearlo, Kevin Lukas Pramadika, Havid Prapansya, Onnie Ridaliani Premono, Agung Puri Wijanti Putra, Raka Handika Putra, Valentinus Galih Vidia Raihan Ramadhan Raisha Marsha Raka Handika Putra Ratnayu Sitaresmi Renanda, Raka Ilham Ririn Yulianti Riswati, Arinda Risyad Baihaqi Rizki Ananda Parulian Rosika Kriswarini Rosmalia Dita Nugraheni Rosmalia Dita Nugraheni Ruliyanta Ruliyanta Samsol Samura, Lisa Shabrina Sri Riswati Sigit Rahmawan Soekardy, Mentari Gracia Suherman Dwi Nuryana Sukarno, Ragil Suryo Prakoso, Suryo Susetyo, Ferry Budhi Syamsuir, Syamsuir Tina Martina Tina Martina, Tina Totong Irwan Tri Yulianto Urbiyanto, Gemintang Atlantika Valentinus Galih Vidia Putra Valentinus Galih Vidia Putra Widia Yanti Widia Yanti, Widia Wijayono, Andrian wiwik dahani, wiwik Yarra Sutadiwiria Yudanto, Sigit Dwi zakiah darajat

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