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SPEKTRA Volume 5 issue 1 contains 9 papers: 1) Design of The Pollution Gas Carbon Monoxide (CO) Monitoring System Based on Microcontroller; 2) The Determination of Barium Strontium Titanate Thin Film Band Gap Energy Ba0,15Sr0,85TiO3 Using Ultraviolet-Visible Spectroscopy; 3) Synthesis and Characterization of Structural Nanocomposite Titanium Dioxide Copper-Doped Using The Impregnation Method; 4) Analysis of The Effect of Care Dose 4D Software Use on Image Quality and Radiation Dose on The CT Scan Abdomen; 5) Characteristics of Rainfall and Precipitable Water in The Annual and Semiannual Rainfall in The Area with Various Intensity of El Nino (Sumatera Case Study); 6) The Design of Display Digital Data Interface Clamp-Meter Complemented by Sensor GMR (Giant Magnetoresistance); 7) The Outbreak’s Modeling of Coronavirus (Covid-19) Using The Modified Seir Model in Indonesia; 8) Design of Metal Heat Conductivity Measurement Using Probe Method; and 9) Surface Morphology Of Sputtered Titanium-Aluminum-Nitride Coatings.

Published: 2020-04-30