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All Journal Munggai: Jurnal Ilmu Perikanan dan Masyarakat Pesisir Journal of Geoscience Engineering and Energy (JOGEE) JURNAL ABDI MASYARAKAT INDONESIA (JAMIN) Jurnal Eksakta Kebumian Journal of Research and Publication Innovation The Indonesian Journal of Computer Science
Rendy
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Social Sciences Other

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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  
PENGARUH INTEGRITAS DAN KOMUNIKASI TERHADAP KINERJA KARYAWAN DI PT KAMAL UNGGUL ABADI (WINGS) JAKARTA BARAT Rendy; Liawati
Journal of Research and Publication Innovation Vol 3 No 1 (2025): JANUARI
Publisher : Journal of Research and Publication Innovation

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Abstract

This research aims to determine the effect of integrity and communication on employee performance at PT. Kamal Unggul Abadi (wings) West Jakarta. This type of research uses quantitative methods. The sampling technique used saturated sampling and obtained 70 respondents. Data analysis uses validity testing, reliability testing, class assumption testing, regression analysis, correlation coefficient, coefficient of determination and hypothesis testing. The results of this research are that integrity has a significant effect on employee performance by 50.7% and the hypothesis test is obtained tcount>ttable or ( 8,369 > 1,667). Communication has a significant effect on employee performance with a coefficient of determination value of 68.6% and the hypothesis test obtained tcount>ttable or (12,200> 1,667). Integrity and communication simultaneously have a significant effect on employee performance with the regression equation Y = 11.321 + 0.136 X1 + 0.607 X2. The coefficient of determination value is 69.4% while the remaining 30.6% is influenced by other factors. Hypothesis testing obtained a value of fcount>ftable or (75.918>3.134).
Jaringan Syaraf Tiruan Mendeteksi Penyakit Pneumonia Infeksi Saluran Pernafasan Akut Dengan Algoritma Backpropagation Yulia; Rendy; Arnomo, Sasa Ani
The Indonesian Journal of Computer Science Vol. 12 No. 1 (2023): The Indonesian Journal of Computer Science
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v12i1.3129

Abstract

Acute Respiratory Infections (ARI) are a health problem that often affects children and adults. For adults, acute respiratory infections are mild or common, but in children under five, this disease is a threat that can cause death. One of the causes of death due to acute respiratory infections is incorrect diagnosis. This study aims to determine the level of accuracy and optimal neural network architecture in detecting ARI using the backpropagation method. This research was implemented using MATLAB software with several forms of network architecture. Symptoms of ARI that were used as input for detection of the disease consisted of 13 variables targeting non-pneumonia and pneumonia ARDs. Based on the research results, the architecture with the best configuration consists of 13 input layer neurons, 20 hidden layer neurons, and two output layer neurons with a binary sigmoid activation function (logs), a learning rate value of 0.5, an error tolerance value of 0.001, a maximum of the epoch of 216 and MSE 0.000997. Artificial neural networks with the backpropagation method used for weight adjustment can respond to training data and testing data well, marked by the resulting network accuracy of 100% in accordance with the desired target.
KARAKTERISTIK ALTERASI SKARN DAN DISTRIBUSI MINERAL SULFIDA PEMBAWA TEMBAGA DI TAMBANG BIG GOSSAN LEVEL 2860L-2940L FOOTWALL WEST, PAPUA, INDONESIA: CHARACTERISTICS OF SKARN ALTERATION AND SULPHIDE MINERAL BEARING COPPER DISTRIBUTION AT BIG GOSSAN MINE 2860L-2940L FOOTWALL WEST, PAPUA, INDONESIA Amalina, Nur; Meirawaty, Mira; Sonbait, Daniel; Burhannudinnur, Muhammad; Hafiz, Surya Darma; Rendy; Koesmawardani, Wildan Tri; Wijaya, Budi
Journal of Geoscience Engineering and Energy VOLUME 6, NOMOR 1, FEBRUARI 2025
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v6i1.22289

Abstract

Tambang Big Gossan di Papua Tengah dikenal dengan mineralisasi tembaga yang terbentuk akibat intrusi diorit pada batuan karbonatan Formasi Waripi. Penelitian ini bertujuan menganalisis karakteristik alterasi dan mineralisasi tembaga di level 2860, 2900, dan 2940 Footwall West. Metode yang digunakan termasuk pemetaan geologi dan analisis laboratorium (petrografi, mineragrafi, dan XRD). Hasilnya, ditemukan empat satuan litologi serta lima zona alterasi, yaitu klinopiroksen-garnet-kuarsa, epidot-klorit-kuarsa-kalsit, garnet-kuarsa-kalsit-piro pilit-epidot, piropilit-kuarsa-kalsit, dan aktinolit-kuarsa-klorit. Mineral sulfida tembaga utama adalah kalkopirit dan bornit, dengan pirit, pyrrhotite, dan magnetit sebagai mineral pembawa besi. Tembaga terakumulasi pada zona retrograde alterasi 2, 3, 4, dan 5. The Big Gossan mine in Central Papua is known for its copper mineralization, formed due to diorite intrusion into the carbonate rocks of the Waripi Formation. This study aims to analyze the characteristics of alteration and copper mineralization at levels 2860, 2900, and 2940 Footwall West. The methods used include geological mapping and laboratory analyses (petrography, mineragraphy, and XRD). The results revealed four lithological units and five alteration zones: clinopyroxene-garnet-quartz, epidote-chlorite-quartz-calcite, garnet-quartz-calcite-pyrophyllite-epidote, pyrophyllite-quartz-calcite, and actinolite-quartz-chlorite. The main copper sulfide minerals are chalcopyrite and bornite, with pyrite, pyrrhotite, and magnetite as iron-bearing minerals. Copper is concentrated in the retrograde alteration zones 2, 3, 4, and 5.
PELATIHAN PEMBUATAN SABUN BATANG DARI LIMBAH MINYAK JELANTAH DENGAN TEKNIK PENJERNIHAN MENGGUNAKAN MINERAL BENTONIT BAGI SISWA SMAN 23 BANDUNG Meirawati, Mira; Rendy; Yuda, Himmes Fitra; Adhitama, Ramadhan; Rachmawan, Sigit
Jurnal Abdi Masyarakat Indonesia (JAMIN) Vol 6 No 2 (2024): JURNAL ABDI MASYARAKAT INDONESIA (JAMIN)
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jamin.v6i2.17635

Abstract

Earth science remains relatively unpopular among the general public as a fundamental discipline. School learning relies heavily on rote memorization, leaving little room for exploration and real-life application of earth science concepts. However, geology is crucial in human life, encompassing multidimensional knowledge relevant to sustainable living and utilizing natural resources. To promote the importance of earth science in daily life, a Community Service (PkM) activity was conducted involving students from SMAN 23 Bandung, located in the densely populated area of Antapani, Bandung. The PkM activity focuses on the role of bentonite clay minerals as a clarifier for used cooking oil and as an adsorbent material in facial masks. Training on using bentonite minerals was provided to enable participants to apply them in their daily activities. The evaluation of questionnaires and interactive discussions showed that the PkM successfully increased awareness and provided education about the benefits of bentonite clay in purifying used cooking oil and its application as a soap-making material. Questionnaires given to 20 participants from SMAN 23 Bandung highlighted the importance of socializing environmentally friendly and health-safe earth science concepts. Adopting an integrated approach using locally available bentonite materials to purify bulk cooking oil is recommended, which can lead to more economically valuable products like soap bars. 
KEPADATAN, KERAGAMAN DAN POLA DISTRBUSI GASTROPODA DI PERAIRANPANTAIDESA TANAH RATA KECAMATAN BANDA KABUPATEN MALUKUTENGAH Rendy; Munira, Munira; Ahad, Yeny
MUNGGAI : Jurnal Ilmu Perikanan dan Masyarakat Pesisir Vol 11 No 02 (2025): Jurnal Ilmu Perikanan Dan Masyarakat Pesisir
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Universitas Banda Naira

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Abstract

Gastropoda adalah molusca yang mempunyai kaki di bagian perutnya. Hewan anggota kelas gastropoda umumnya bercangkang Tunggal membentuk spiral. Gastropoda memiliki peranan penting dalam kehidupan baik secara ekologis maupun ekonomis, secara ekologis, gastropoda berperan antra lain menjaga lingkungan organisme perairan sebagai pakan alami bagi organisme perairan. Sedangkan secara ekonomis cangkang gastropoda digunakan sebagai campuran bahan baku industri yang mempunyai nilai komersial yaitu sebagai dekorasi, souvenir, asesoris, dan pelengkapan perhiasan. Penelitian ini bertujuan untuk mengetahui kepadatan, keragaman, dan poladistribusi gastropoda di perairan Pantai Desa Tanah Rata Kecamatan Banda Kabupaten Maluku Tengah. Metode yang digunakan dalam penelitian ini Adalah deskriptif kuantitatif. Gastropoda yang ditemukan pada Lokasi penelitian berjumlah 159 individu yang terdiri dari 27 spesies, kelimpahan rata-rata pada 2 stasiun sebesar 0,03975 dengan kelimpahan tertinggi dimiliki oleh spesies Strombus labiatus sebesar 0,004 ind/m² sedangkan kelimpahan terendah dimiliki oleh 3 speseis masing-masing Cymbiola( Aulica ) inneva, Thais armigera dan Cypraea annulus sebesar 0,00025 ind/m². keragaman (H’) dan keseragaman (E) menunjukan Tingkat keragaman sedang, gastropoda yang menempati perairan Pantai Desa Tanah Rata pada stasiun I memiliki kelimpahan tertinggi dimiliki oleh spesies Strombus labiatus sebesar 0,004ind/m². pola distribusi yang ditemukan di Pantai Desa Tanah Rata menunjukan pola Distribusi mengelompok.
Co-Authors Adhitama, Ramadhan Ahad, Yeny Arnomo, Sasa Ani Budi Wijaya Hafiz, Surya Darma Koesmawardani, Wildan Tri Liawati Meirawati, Mira Meirawaty, Mira Muhammad Burhannudinnur Munira Munira, Munira Nabila Rawy Anggrainy, Luvina Nur Amalina Rachmawan, Sigit Sonbait, Daniel Syavitri, Dewi Yuda, Himmes Fitra yulia