The Effect of Resistivity of Used Cooking Oil on The Quality of Palm Cooking Oil by Masherlina Masherlina, Kerista Tarigan, Syahrul Humaidi

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Development of an Automated Temperature Calibration Monitoring System Using Internet of Things for the Regional Meteorology, Climatology, and Geophysics Agency (Bmkg) in Medan by Humam Maulana, Kerista Tarigan, Syahrul Humaidi, Yahya Darmawan

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Enhanced Photocatalytic Activity of Cu2O/ZnO/GO Nanocomposites on the Methylene Blue Degradation by Frikson Jony Purba, Zuriah Sitorus, Kerista Tarigan, Nurdin Siregar

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Design of solar power system for the new mini region of broadband seismometer shelter in Tiganderket, Karo, North Sumatera, Indonesia by Marzuki Sinambela, Marhaposan Situmorang, Kerista Tarigan, Syahrul Humaidi, Teguh Rahayu

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Identification of Rainfall events on Climate Phenomena in Medan based on Machine Learning by Deassy Eirene Diana Doloksaribu, Kerista Tarigan, Richard Mahendra Putra, Yahya Darmawan

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Effect of surface area on electrical properties of NiCo2O4-reduced graphene oxide nanocomposites for supercapacitor electrodes applications by Andriono Manalu, Kerista Tarigan, Syahrul Humaidi, Masno Ginting, Istas Pratomo Manalu, Ikhwanuddin

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Implementation of Monte Carlo Simulation in Evaluation of The Uncertainty of Rainfall Measurement by Romeo Kondouw, Kerista Tarigan, Syahrul Humaidi, Marhaposan Situmorang, Mardiningsi Mardiningsi, Yahya Darmawan

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The Effect of Different Liquid on Temperature Uniformity and Stability in Microbath 7102 by Waslina Rangkuti, Kerista Tarigan, Syahrul Humaidi, Marhaposan Situmorang, Erna Frida, Yahya Darmawan

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Design of Analytical Balance for Calibration of Measuring Cup of Observatory Type Rain Gauge with Automatic Pump by Muhammad Wildan Abdulmajid, Kerista Tarigan, Syahrul Humaidi, Marhaposan Situmorang, Perdinan Sinuhaji, Yahya Darmawan

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Fabrication and Optimization of Primary Batteries Using Ni/Graphene Nanosheet Electrodes by Kerista Tarigan, Rikson Siburian, Erika Arta Mevia Sitorus, Frikson Jony Purba, Yosia Gopas Oetama Manik

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Characterization of Meteorological Drought Using Standardized Precipitation Index and Standardized Precipitation Evapotranspiration Index Methods in North Sumatera by Fanly Parhimpunan Manullang, Kerista Tarigan, Marhaposan Situmorang, Syahrul Humaidi, Deassy Eirene Diana Doloksaribu, Yahya Darmawan

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Homogenizer-intensified room temperature biodiesel production using heterogeneous palm bunch ash catalyst by Eko K. Sitepu, Yosefa Sembiring, Minto Supeno, Kerista Tarigan, Junedi Ginting, Justaman A. Karo-karo, Juliati Br. Tarigan

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The loading effect of Pt clusters on Pt/graphene nano sheets catalysts by Rikson Siburian, Ab Malik Marwan Ali, Kerista Sebayang, Minto Supeno, Kerista Tarigan, Crystina Simanjuntak, Sri Pratiwi Aritonang, Fajar Hutagalung

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Waste Passion Fruit Peel as a Heterogeneous Catalyst for Room-Temperature Biodiesel Production by Juliati Br. Tarigan, Krishanjit Singh, Jenita S. Sinuraya, Minto Supeno, Helmina Sembiring, Kerista Tarigan, Siti Masriani Rambe, Justaman A. Karo-karo, Eko K. Sitepu

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