Search Results - "Situmorang, Marhaposan"

Analysis of Current Limiter Electronics for Solar Pumps: Evaluating Performance in Varied Sunlight Intensities by Simanjuntak, Berkadh, Situmorang, Marhaposan, Sinambela, Marzuki, Bonardo, Doli

“…This research investigates the implementation and efficacy of a current limiter electronics system within solar pump systems, focusing on its ability to…”
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Accuracy of Weather Radar Products for Rainfall Estimation in North Sumatra Region by Tondang, Yolanda Mutiara, Situmorang, Marhaposan, Ikhsan, Tulus, Darmawan, Yahya

“…The weather radar is a remote sensing-based observation tool that identifies and records rainfall. Remote sensing is a technology that determines atmospheric…”
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Study of the Utilization of WRF Model Output Data to Produce Daily Flood Forecast Maps in the North Sumatra Region by Sirait, Mega, Humaidi, Syahrul, Sinambela, Marzuki, Situmorang, Marhaposan, Frida, Erna

“…Flood is a natural disaster that often occurs in Indonesia. Currently, flood events are relatively difficult to predict because floods generally occur suddenly…”
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Characteristics of Cloud to Ground (CG) Lightning and Heavy Rainfall in Medan and Deli Serdang by Tarigan, Patra Mesiari, Humaidi, Syahrul, Darmawan, Yahya, Situmorang, Marhaposan, Rianna, Martha

“…The areas of Medan and Deli Serdang have complex topography, stretching from the slopes of Bukit Barisan Mountains to the east coast of North Sumatera. This…”
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The Effect of Different Liquid on Temperature Uniformity and Stability in Microbath 7102 by Rangkuti, Waslina, Tarigan, Kerista, Humaidi, Syahrul, Situmorang, Marhaposan, Frida, Erna, Darmawan, Yahya

“…Microbath Fluke Type 7102 is used for thermometer calibration. In the calibration process, Microbath uses liquid media as heat conductor. Liquid media in…”
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Implementation of Monte Carlo Simulation in Evaluation of The Uncertainty of Rainfall Measurement by Kondouw, Romeo, Tarigan, Kerista, Humaidi, Syahrul, Situmorang, Marhaposan, Mardiningsi, Mardiningsi, Darmawan, Yahya

“…Many factors trigger the uncertainty of rainfall measurement. Several factors can be related to the instruments, weather conditions, and acquisition methods…”
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Design of Analytical Balance for Calibration of Measuring Cup of Observatory Type Rain Gauge with Automatic Pump by Abdulmajid, Muhammad Wildan, Tarigan, Kerista, Humaidi, Syahrul, Situmorang, Marhaposan, Sinuhaji, Perdinan, Darmawan, Yahya

“…The Observation type rain gauge is a manual type rain gauge that requires a measuring cup to measure rainfall in millimeters (mm) of rain. Precise measurement…”
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Projection of Climate Change on the Probability of Dengue Hemorrhagic Fever in North Sumatra Province by Simbolon, Theresia Grefyolin, Frida, Erna, Sinambela, Marzuki, Situmorang, Marhaposan, Humaidi, Syahrul, Darmawan, Yahya

“…Climate change is a major threat to global prosperity. The industrial revolution has occurred since 1750 to 2010 where the increase in global air temperature…”
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Projection of Tourist Climate Comfort Level Period 2031-2050 in Caldera Toba Geopark by Siregar, Alfonsius Chrisandy Pratama, Frida, Erna, Sinambela, Marzuki, Situmorang, Marhaposan, Humaidi, Syahrul, Darmawan, Yahya

“…Tourism is one of the economic sectors that is developing relatively rapidly and has the potential to become a source of foreign exchange due to an increase in…”
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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 Sinambela, Marzuki, Situmorang, Marhaposan, Tarigan, Kerista, Humaidi, Syahrul, Rahayu, Teguh

“…The solar power installation on a new broadband seismometer shelter will greatly be affected by the quality of waveform data. The lower power means a…”
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Characterization of Meteorological Drought Using Standardized Precipitation Index and Standardized Precipitation Evapotranspiration Index Methods in North Sumatera by Manullang, Fanly Parhimpunan, Tarigan, Kerista, Situmorang, Marhaposan, Humaidi, Syahrul, Doloksaribu, Deassy Eirene Diana, Darmawan, Yahya

“…Climate variability in Indonesia is influenced by several global factors including El Niño Southern Oscillation and Indian Ocean Dipole, one consequence of…”
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Cyclic Oxidation Resistance of MoSi2 Added FeCrAlTiY Coatings on ST41 Steel at 700oC Prepared by a Flame Spraying Technique by Januaris Pane, Dedi Holden Simbolon, Hubby Izzudin, Ahmad Afandi, Bambang Hermanto, Kerista Sebayang, Syahrul Humaidi, Marhaposan Situmorang, Toto Sudiro

“…Advanced power generation will be operated at higher temperatures and pressure to achieve higher efficiency and reduce CO2 emission. This may significantly…”
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Effect of Co and Ni additions as doping materials on the micro-structures and the magnetic properties of barium hexa-ferrites by Ginting, Masno, Sebayang, Perdamean, Rianna, Martha, Situmorang, Marhaposan, Fujiati, Heryani, Tetuko, Anggito P., Setiadi, Eko Arief, Kurniawan, Candra, Sebayang, Achmad Maulana Soehada

“…In this paper, the synthesis of BaFe12-2xCoxNixO19 (x = 0–0.2) materials at a calcination temperature of 950 °C using a co-precipitation method have been…”
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High Temperature Oxidation Resistance of FeCrAlTiY-MCrAlY (M = Co and Ni) Coatings On Carbon Steel Prepared By Flame Spray Technique by Dedi Holden Simbolon, Pane, Januaris, Hermanto, Bambang, Afandi, Ahmad, Sebayang, Kerista, Situmorang, Marhaposan, Sudiro, Toto

“…— Four different composition of FeCrAlTiY- x MCrAlY (M = Co and Ni, x = 0, 10, 20, and 30 in mass %) coatings were prepared onto carbon steel substrate using a…”
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Effect of calcination temperature on Microstructures, magnetic properties, and microwave absorption on BaFe11.6Mg0.2Al0.2O19 synthesized from natural iron sand by Rianna, Martha, Sembiring, Timbangen, Situmorang, Marhaposan, Kurniawan, Candra, Tetuko, Anggito P., Setiadi, Eko Arief, Priyadi, Ignu, Ginting, Masno, Sebayang, Perdamean

“…The syntheses of BaFe11.6Mg0.2Al0.2O19 with calcination temperature variations of 900, 1050, and 1200 °C were conducted through a co-precipitation method to be…”
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COMPARISON OF ENERGY DOSES 10 MV DISTRIBUTION USING PERCENTAGE DEPTH DOSE (PDD) METHOD ON LINAC: ELECTA AND SIEMENS by Rianna, Martha, Sianturi, Herty Afrina, Lubis, Hariyati, Pelawi, Awan, Sembiring, Timbangen, Situmorang, Marhaposan

“…The patient dosing on Linac (Electa and Siemens) can be determined by Source Surface Distance (SSD) technique using Precentage Depth Doses (PDD) method. The…”
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CHARACTERIZATION OF NATURAL IRON SAND FROM KATA BEACH, WEST SUMATRA WITH HIGH ENERGY MILLING (HEM) by Rianna, Martha, Sembiring, Timbangen, Situmorang, Marhaposan, Kurniawan, Candra, Setiadi, Eko Arief, Tetuko, Anggito P, Simbolon, Silviana, Ginting, Masno, Sebayang, Perdamean

“…Iron sand is one of the natural resources in West Sumatra that has not been optimally utilized. One of the potential locations to get this iron sand deposits…”
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Study and characterization of Fe3O4 synthesized from natural iron sand in Sumatera Utara by Martha Rianna, Muhammadin Hamid, Fitri Handayani, Achmad Maulana Soehada Sebayang, Wina Rahmadani Rangkuti, Marhaposan Situmorang, Timbangen Sembiring, Eko Arief Setiadi, Anggito P. Tetuko, Perdamean Sebayang

“…Abstrak. Pasir besi alam adalah satu dari sumberdaya alam di Indonesia, khususnya Sumatera Utara, yang pemanfaatannya belum dilakukan secara optimal…”
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The effect of Mg-Al additive composition on microstructure, magnetic properties, and microwave absorption on BaFe12−2xMgxAlxO19 (x = 0–0.5) material synthesized from natural iron sand by Rianna, Martha, Situmorang, Marhaposan, Kurniawan, Candra, Tetuko, Anggito P., Setiadi, Eko Arief, Ginting, Masno, Sebayang, Perdamean

“…•Synthesis barium hexaferrite from natural iron sand kata beach, sumatera barat indonesia for microwave absorption.•Effect addition Mg-Al to microstructure,…”
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Design and Development of A Digital Soil Temperature Monitoring System Based on The Internet of Things at North Sumatra Climatological Station by Manurung, Royston, Nasution, Tulus Ikhsan, Humaidi, Syahrul, Saragih, Immanuel Jhonson A., Hibatullah, Khindi Aufa, Situmorang, Marhaposan, Darmawan, Yahya

“…Soil temperature is a crucial parameter in monitoring and understanding climate and soil ecosystems. It plays a vital role in various environmental aspects,…”
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