Carbon electrodes from Areca husk biomass waste for supercapacitor cells have been successfully synthesized and characterized. This study is focused on the effect of increasing the KOH activator concentration with variations 0 M, 0.3 M, 0.5 M, 0.7 M, and 0.9 M on the physical and electrochemical properties of areca husk carbon electrodes. Preparation of activated carbon electrodes begins with t…
Research to determine the potential, flow patterns and quality of community well water in the area of Mutiara Tenayan Raya housing, Tenayan Raya District of Pekanbaru has been carried out. The method used in this study is the Schlumberger configuration geoelectric method. Processing data Using Software Progress to get the depth and number of layers of the resistivity value obtained. Air quality…
ABSTRACT The use of computer vision systems in determining the volume of oil palm FFB using the ellipsoid approach was successfully carried out. In this system, the determination of the volume of oil palm FFB is made based on cross line laser diodes. The system consists of a laser diode used with a wavelength of 635 nm (red) and a CMOS monochrome camera. The sample used was tenera varietie…
ABSTRACT Laser speckle imaging (LSI) method is a non-destructive imaging technique that can be used to detect optical signals from biological tissues in the form of dark and bright grains called speckle patterns. This study used the LSI system to determine the speckle contrast and refractive index of honey using laser diodes with a wavelength of 650 nm, Riau native forest honey and branded…
ABSTRACT This study reviews how much silver (Ag) resulting from extraction of silver nitrate (AgNO3) using yellow watermelon rind (citrullus lanatus). The purpose of the research is to determine the ability of nanoparticle (Ag) photo catalysts with different volume comparisons based on silver nitrate (AgNO3). Silver nitrate was extracted using the fruit peel of citrullus lanatus, where cit…
ABSTRACT The computer vision method using imageJ software and measurement using colorimeter has been used to find the RGB value of oil palm FFB. This study aims to determine the level of color maturity and uniformity of oil palm FFB using RGB values. The system used consists of RGB cameras, computers, imageJ software, lights and oil palm FFB samples. Measurements using a colorimeter to fi…
ABSTRACT The efforts to increase the efficiency of perovskite solar cells (PSC) as fourth generation solar cells has been carried out, one of which to repair electron transport layers made of titanium dioxide (TiO2) semiconductors. The TiO2 layer was successfully grown on Fluorine Tin Oxide (FTO) substrate using the liquid phase deposition method. The TiO2 layers were grown twice at 50oC. …
ABSTRACT Fluorescence Spectroscopy and Fourier Transform Infrared (FTIR) spectroscopy systems have been used as nondestructive methods that have the potential to test honey purity. Fluorescence spectroscopy system consists of 405 nm diode laser, mirror, ND filter and USB 2000+ Ocean Optics spectrometer, while FTIR spectroscopy system consists of FTIR Prestige 21 / FTIR 8400 spectrometer. …
ABSTRACT The physical and chemical properties of honey are parameters that can be used to determine the quality of honey. One of the physical and chemical parameters of honey are sugar content and viscosity. The fluorescence imaging method was used to analyze the relationship between RGB values and the physical and chemical properties of honey. This method is used because of its simplicity…
ABSTRACT The condition of an inundated, flooded and not inundated area is influenced by geology of a particular area. This will affect the condition of the aquifer layer. The aquifer layer is the subsurface layer that can store and drain water. Wenner configuration geoelectric method was used to determine the groundwater aquifer layer.This research was conducted in Tuah Karya Village, Tamp…
ABSTRACT Ru doped ZnO nanomaterials have successfully synthesized using seed mediated hydrothermal method on the FTO surface. This study focused on Ru doping effect on physical properties of ZnO nanomaterials. Sample characterization methods were performed by using UV-Vis Spectroscopy, Field Emission Scanning Electron Microscope (FESEM), Energy Disperssive X rays (EDX) and X Rays Diffract…
Ru doped ZnO nanomaterials have successfully synthesized using seed mediated hydrothermal method on the FTO surface. This study focused on Ru doping effect on physical properties of ZnO nanomaterials. Sample characterization methods were performed by using UV-Vis Spectroscopy, Field Emission Scanning Electron Microscope (FESEM), Energy Disperssive X rays (EDX) and X Rays Diffraction (XRD). The …
The use of single mode fiber as a waveguide of communication over long distances increases due to small dispersion and attenuation so that the production of single mode fiber optics also increases to prevent large dispersion of fiber optics. A single mode fiber design simulation is performed using the OptiFiber application. Single mode fiber used in the simulation is SMF-28, SMF-28e, SMF-28e +,…
The metabolism of bread yeast cells (Saccharomyces cerevisiae) to produce dissolved oxygen levels (pO2) was measured using an integrated biochip-C biosensor based on lab-on-chip concept. Yeast cells used as bioreceptors was cultivated and grown in potato dextrose broth medium (PDB) then immobilized in Biochip-C chamber. Influence of glucose (C6H12O6) and sodium chloride (NaCl) on the viability …
Research has been conducted on the potential of unconfined aquifer and confined aquifer in Perumahan Griya Sinergi Garuda Sakti using geoelectric resistivity method with Schlumberger configuration. Geoelectric is one of geophysic method to knowing geological condition subsurface according to the variation from the resistivity value of rocks type.this method have eminency to make a simple explor…
The measurement of dissolved oxygen level of Chlorella Kessleri algae using biosensor module integrated with Biochip-C has been done.In this study the effect of artificial light LED on the vitality of algae in production oxygen from phoyosynthesis with variations wavelength (λ), intensity (I0), and irradiation time (t) has ben examined. The result explained that the red wavelength of light wit…
The application transmission of wave in telecommunication still has an obstacle such as a dispersion. The design and operation of shifted fiber is simulated as prior to the design, which is easier, low cost and high accuracy. The purpose of this study is to analyze the design and operation of the shifted fiber dispersion and to investigate the wavelength value at the minimum dispersion using Op…
The research on the analysis of zonation of aquifers in the District of Rumbai Pesisir, Pekanbaru City using software progress v 3.0 was carried out by geoelectric method and configuration of schlumberger. This study aims to analyze zonation of aquifers in coastal areas, find out areas that have large underground water resources, and to determine the lithology characteristics of the constituent…
The condition of an inundated, flooded and not inundated area is influenced by geology of a particular area. This will affect the condition of the aquifer layer. The aquifer layer is the subsurface layer that can store and drain water. Wenner configuration geoelectric method was used to determine the groundwater aquifer layer.This research was conducted in Tuah Karya Village, Tampan District o…
This study reviews how much silver (Ag) resulting from extraction of silver nitrate (AgNO3) using yellow watermelon rind (citrullus lanatus). The purpose of the research is to determine the ability of nanoparticle (Ag) photo catalysts with different volume comparisons based on silver nitrate (AgNO3). Silver nitrate was extracted using the fruit peel of citrullus lanatus, where citrullus lanatu…