A comparative study of magnetic susceptibility of seawater on West and East coast of central Sumatra using the Quincke method has been done. The amount of sea water was collected for 500 ml of location. The number of sample location are 24 points from three West coast locations of Sumatra and one from East coast Sumatera. The method used for sampling is a distance function with a range of 300…
The analysis of aquifer potential has been done in the Rumbai Pesisir District of Pekanbaru City by using the Schlumberger configuration geoelectric method. Data was taken from four villages in Rumbai Pesisir Subdistrict, in Lembah Damai, Limbungan, Limbungan Baru and Meranti Pandak. The result obtained using progress software showed that each location has aquifer with different layer and thick…
Mapping of the level of pollution of Siak river has been carried out before and after the filtration system with 2 times of filtering based on physical parameters using the experimental method. This research was conducted by measuring the conductivity value, pH, and calculating the TDS value. The sampel used were water taken at 30 points above the surface of the Siak River in area A with coordi…
This research aims to analyze the physical parameters of shrimp crackers that have gone through the drying process by using an arduino-based cracker drying device using corncobs waste energy. The temperature measurement of each drying rack uses a thermometer and the maximum temperature obtained on rack 3 is 60,5oC, the maximum temperature on rack 2 is 58,5oC, and the maximum temperature on rack…
Barium Strontium Titanate (BST) thin films are electronic devices based on ferroelectrics formed from Barium Carbonate (BaCO3) doped with Strontium Carbonate (SrCO3) and Titanium Isopropoksida Ti(OC3H7)4 . BST thin films with different of compositions (x = 0.45 ; 0.55 and 0.65) were made on the glass substrate using the sol-gel method and annealing process at different temperatures ie 600oC,…
Domestic waste is water that comes from daily activities but does not include feces. filtration is like a filter that uses sand as a filter media that has a very small grain size and high quartz content. This research was conducted to analyze and compare the quality of domestic wastewater before and after filtration using coagulants and slow sand filters on Jalan Swakarya, Tampan Subdistrict, T…
Barium Titanate (BaTiO3) and Strontium Titanat (SrTiO3) are thin layer semiconductors on a ferroelectric crystal that has a perovskite crystal structure so that they can be applied as sensors especially capacitors. The creation of BaTiO3 and SrTiO3 materials in the form of thin films on a glass substrate has been successfully carried out. The method used is the sol-gel method. The goal to be ac…
Research on predictive analysis of two-dimensional models of potential groundwater that is environmentally friendly in the District of Bukit Raya has been successfully carried out. This research uses a field survey methodology that aims to determine and predict water requirements, underground water availability in the Bukit Raya District of Pekanbaru City from 2018 until 2025 based on data from…
The synthesis of iron sand from Kata beach Pariaman Sumatera Barat has been done by ball milling method. Before the process of crunching of the iron sand concentrate using ball milling, the sample was first processed through Iron Sand Separator to obtain the iron sand concentrate. Subsequently, the concentrate was crunched using ball milling for 7 hours. Then the separation of iron oxide partic…
This study aims to produce high-school physics learning media Newton's legal material about valid motion so it is worthy to be used as a medium for learning physics of high school students. The research method used is research and development with development stage following the ADDIE model. Media developed through three stages in accordance with the development model used. In this study, the m…
Abstract : Reciprocal teaching is a learning model for the student that uses four self-understanding strategies. It includes material summarizing, compiling and completing questions, explaining the acceptant knowledge, and lastly predicting the next question. The main purpose of this study was to determine the difference of student's understanding improvement of learning concepts between the cl…