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ISSN 2301-4970 · Universitas Tanjungpura · 184 artikel di indeks
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Artikel Jurnal
Identifying Pore Type of Lagoon and Barrier Carbonate to Model Shear Wave Velocity in Salawati Basin by Differential Kuster-ToksÖz
The shape of pores in sedimentary rocks is dependent on the geometric structure of the rock matrix grains. Carbonate rocks have more complex pore types compared to clastic due to the effects of diagenesis and the depositional environment. The study analyzed the deposition of Kais carbonate in…
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Artikel Jurnal
Degradasi Rhodamin B oleh Bi4Ti3O12 yang Diperoleh dari Metode Lelehan Garam Campuran NaCl/KCl
Rhodamin B adalah salah satu limbah zat warna yang berbahaya bagi ekosistem sehingga diperlukan usaha-usaha untuk menanganinya. Salah satu metode yang berpotensi digunakan dalam menangani limbah rhodamin B adalah metode fotokatalis. Salah satu senyawa yang mempunyai kemampuan aktivitas fotokatalis…
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Artikel Jurnal
Rancang Bangun Transduser Piezoelektrik untuk Analisis Target Strength Argo Float
Deteksi bawah air menggunakan teknologi akustik kelautan merupakan bagian dari metode penginderaan jauh. Hal ini disebabkan karena gelombang akustik mampu merambat di dalam air dengan baik. Salah satu faktor penting dalam pendeteksian dengan metode akustik adalah transduser sebagai Source Level…
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Artikel Jurnal
One Step Synthesis of TiO2-Activated Carbon Composite Using Hydrothermal Method with Mass Variation of Activated Carbon
One effort to increase the photocatalytic activity of TiO2 is to immobilize it on the surface of the sorbent material. This study aims to produce TiO2-Activated Carbon (TiO2-AC) composites which have higher photocatalytic activity than TiO2, using a simple method. The synthesis of TiO2-AC…
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Artikel Jurnal
Identification and Classification of Thiamine with Amperometric Biosensor Based on Saccharomyces cerevisiae and Principal Component Analysis
Vitamin B1 (thiamine) plays an important role in various metabolic processes and is one of the main factors in the body's health. Thiamine excess and deficiency in the body might cause a variety of diseases such as shortness of breath, beriberi, and heart failure, hence thiamine levels must be…
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Artikel Jurnal
Green Synthesis of Fe3O4 Nanoparticles Based on Natural Sand as Methylene Blue Degradation by Electrocoagulation Method
The green synthesis of Fe3O4 nanoparticles based on natural sand as a liquid waste degrader has been conducted. Fe3O4 powder was obtained by separating natural sand using a permanent magnet through the electrocoagulation method with Mn doping and AC composite. The 5 variations of Mn doping aimed to…
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Artikel Jurnal
Utilization of Luminescent Carbon Nanodots from Soybean Husk Wastes for Fingerprint Identification using Tracker Software Spectrum Analysis
Visible fingerprints (FPs) play a crucial role in forensic identification, and luminescent carbon nanodots (C-Dots) have shown promise in enhancing their visibility. However, the optimal concentration of C-Dots for effective coating remains largely unexplored. This research aimed to determine the…
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Artikel Jurnal
Synthesis of NaP Zeolite Based on Bauxite Red Mud Using Hydrothermal Method on Mole Ratio of SiO2/Al2O3 Variations
Red mud is a bauxite industrial waste of reddish-brown mud with high alkalinity. Red mud has relatively high silica and alumina content, so it can be utilized as a raw material in the synthesis of zeolite. This study aims to synthesize high-purity NaP zeolite from red mud at various SiO2/Al2O3 mole…
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Artikel Jurnal
Sunlight Assisted Degradation of Linear Alkylbenzene Sulfonate by Floating Catalyst TiO2-Coconut Fiber
The increasing number of laundry businesses in Pontianak causes increased laundry waste, which is dangerous for health and the environment because anionic surfactants such as Linear Alkylbenzene Sulfonate (LAS) are hard degradable. Photocatalyst is a method that can be used to degrade the LAS…
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Artikel Jurnal
Characteristics of Internal Solitary Waves near Its Generation Site in the Lombok Strait, Indonesia
Evidence of internal solitary waves (ISWs) formation through the Lee wave mechanism in the Lombok Strait was revealed from the echosounder measurements conducted in November 2017. This study is aimed to characterize the property of ISW packet formed around ~30 km away from the generation site, in…
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Artikel Jurnal
Peningkatan Kinerja Bio-Baterai Nanas Dengan Penambahan Pasta Aki Bekas dan Natrium Benzoat
Telah dilakukan penelitian mengenai pengaruh variasi penambahan aki dan natrium benzoat dari elektrolit kulit nanas terhadap peningkatan kinerja biobaterai. Penelitian ini bertujuan untuk mengetahui pengaruh variasi penambahan aki dan natrium benzoat dalam meningkatkan kinerja biobaterai dari kulit…
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Artikel Jurnal
Analysis of Projected Temperature Changes in Aceh Province
The objective is to analyse temperature changes and their future projection in Aceh. The activities consist of collecting past and future temperature data, preparing materials for processing, and analyzing past and future temperature data (climate change projections). The data used are monthly…
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Artikel Jurnal
Quantitative Caffeine Analysis in Robusta Coffee Utilizing Amperometric Biosensing Technology
Consuming caffeine in inappropriate amounts can disrupt various aspects, especially health. Controlling intake by knowing the caffeine levels in coffee is necessary to reduce the potential negative impacts. This research focuses on the detection of caffeine in Robusta coffee at two different…
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Artikel Jurnal
Effect of Calcination Temperature on the Powder of Freshwater Snail Shells (Sulcospira testudinaria) Properties
Gastropod shells, such as those from the freshwater snail (Sulcospira testudinaria), have garnered interest as potential sources of calcium precursors. These shells are rich in calcium carbonate (CaCO3), which can be thermally decomposed into calcium oxide (CaO) through calcination. However, more…
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Artikel Jurnal
Non-Nutritive Suck Assessment Tool Development to Characterize Sucking Patterns in Infant with Various Hunger Levels
Sucking abilities are critical in early infant development, and the patterns of non-nutritive suck (NNS) have been found to potentially predict neurodevelopmental issues in the future. Proper NNS assessments are essential to ensure valid conclusions. Previous studies have shown that the level of…
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Artikel Jurnal
Perancangan dan Simulasi Sensor Volume Zat Cair berbasis Metamaterial Rektangular
Pengukuran volume zat cair yang sensitif dapat dicapai menggunakan alat ukur atau sensor. Akan tetapi sensor volume zat cair tidak banyak mengembangkan, padahal pengukuran volume berdampak langsuang pada nilai ekonomis, keberhasilan penelitian ilmiah, dan kemanjuran dosis obat. Penelitian yang…
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Artikel Jurnal
Beneath the Surface: Identifying Subsurface Caves in "Gua Pandan" Using Integrated Electrical Profiling Method
One of the geopark tourism areas in East Lampung Regency, "Gua Pandan," has run into rock subsidence on the surface. As part of the subsidence prevention, indirect electrical methods between resistivity and chargeability profiling were applied to identify the presence of a subsurface cave in the…
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Artikel Jurnal
Protonation Process of Porous Silica Cluster Surface using Molecular Dynamics Method
Using molecular dynamic simulation, we developed an algorithm to protonate the surface of an amorphous porous silica grain particle model and study its effect. In this work, the silica grain model can be used to study cosmic dust coagulation. The surface of the silica cluster was protonated by…
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Artikel Jurnal
Kajian Numerik Kesalahan Hasil Pengukuran Geolistrik 2D Terhadap Target Model 3D: Studi Kasus Pengukuran di Dekat Gedung Berpondasi Beton
Survei geolistrik 2D dikaji berdasarkan asumsi bahwa model geolistrik bawah permukaan yang dihadapi adalah model 2D, dimana tidak terdapat variasi nilai resistivitas pada horisontal arah tegak lurus lintasan. Namun, pada beberapa kondisi, asumsi ini memberikan kesalahan ketika model yang dihadapi…
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Artikel Jurnal
Potential of Cellulose Acetat Separator of Empty Palm Oil Fruit Bunches and Polyvinylidene Fluoride for Energy Storage Applications
One of the components that play an important role in maintaining battery security is the separator. The separator plays a role in preventing short circuits due to direct exchange between the anode and cathode in the battery cell. To avoid leakage or short circuit during the process, the separator…