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The Implementation of Machine Learning in Lithofacies Classification Using Multi Well Logs Data

Characteristics of Sediment at Littoral Zone of Anoi Itam Beach (Eastern Weh Island, Indonesia) Based on Seasonal Changes

Adsorption of Cd(II) Ions From Aqueous Solution by A Low-Cost Biosorbent Prepared From Ipomea Pes-Caprae Stem

Utilization of Egg-shell, A Locally Available Biowaste Material, for Adsorptive Removal of Congo Red From Aqueous Solution

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Water and Sediment Quality Index Due to Gold Mining in the Krueng Kluet Hilir Watershed, Aceh Selatan Regency

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Analysis of Crystallinity and Physical Properties of the Bio-solar Gemstone

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Preparation and Application of ZnFe2O4/α-Al2O3 for Photocatalytic Degradation of Methylene Blue Dye and Real Textile Effluent

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Application of Vertical Electrical Sounding (VES) for Subsurface Profiling in Weh Island, Aceh Province

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Water and Sediment Quality Index Due to Gold Mining in the Krueng Kluet Hilir Watershed, Aceh Selatan Regency

Journal article

Analysis of Crystallinity and Physical Properties of the Bio-solar Gemstone

Journal article

Preparation and Application of ZnFe2O4/α-Al2O3 for Photocatalytic Degradation of Methylene Blue Dye and Real Textile Effluent

Journal article

Application of Vertical Electrical Sounding (VES) for Subsurface Profiling in Weh Island, Aceh Province

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Pilot Metal Workload in Flight Operation: a Case Study of Indonesian Civilian Pilot

This type of activity or work with high stress level and requires more concentration and attention, in this case is the aircraft operation. Thereby mental workload is the most dominant than the physical workload. And this is what should have been a concern, because if mental workload endured by pilot is excessive, it will lower down the quality of work and lead to work safety; in this case the aircraft operation. Subjective Workload Assessment Technique (SWAT) method is used to measure mental workload value, this method consists of three dimensions with their levels, there are: time, mental effort, and psychological stress load. The aim of this study was to know the mental workload of the pilot of an aircraft in flight dimensions: phases of time, phase of flight, terrain condition, and weather, and identifies what factors the most dominant for build of mental workload. The results of studies showed that pilot mental workload will increase when a pilot faced with flight conditions do at early morning (00.00-05:59 am), during weekend and enters the peak season period, and the aircraft will be landing procedures, and also in case of change of wind conditions in flight, and will increasingly when pilot exposed to aircraft operating with route condition which has a land surface is mountainious. This study also showed that the time dimension factor (T) significantly affects the mental workload of pilots, indicating that they put more emphasis on this factor when they are considering workloads.
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Water Purification and Disinfection by Using Solar Energy: Towards Green Energy Challenge

The aim of this work was to design a solar water treatment plant for household purpose. Water purification is the process of eradicating detrimental chemicals, biological poisons, suspended solids and gases from contaminated water. In this work we have reported an investigation of compact filter which is cost effective for developing countries and ease of maintenance. We have arranged a solar water disinfection system that improves the microbiological quality of drinking water at household level. We get 14 L pure water and 16 ml water vapour within 240 min by using filtration method. From our work we get hot water up to 49°C. The efficiency of the system at sunny days and cloudy days are 18.23% and 18.13% respectively. This simple solar hybrid system helps to remove turbidity as well as chemical and pathogenic contaminants from water sources in the most affordable, and expedient manner possibly.
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Design of Portable Beverage Cooler Using One Stage Thermoelectric Cooler (TEC) Module

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Adsorption of Textile Dye by Activated Carbon Made From Rice Straw and Oil Palm Midrib

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Design of Portable Beverage Cooler Using One Stage Thermoelectric Cooler (TEC) Module

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Adsorption of Textile Dye by Activated Carbon Made From Rice Straw and Oil Palm Midrib

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Inhibitory Action of Rice Husk Extract (RHE) on the Corrosion of Carbon Steel in Acidic Media

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Water Footprint Analysis in Krueng Aceh Watershed, Aceh Province, Indonesia

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Biochar and Tillage Systems Influenced on Soil Physical Properties

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The Hardness of Boride Layer on the S45C Iron (a Preliminary Study on Surface Hardening of Ferrous Material)

- The property such as microhardness of boridelayer formed on S45C iron was investigated. Boronizing was carried out in a solid medium consisting of nano size powders of 50% B4C as a donor, 45% SiC as a diluent, and 5% KBF4 as an activator treated at the temperature of 10000C for 8 hours. The phases that were formed on the substrate was found as Fe2B and FeB layer that had smooth and flate shape morphology. The hardness of boride layer on S45C was over 2000 HV, while the hardness of untreated S45C iron was about 196,39 HV. Depending on process time and temperature, the depth of boride layer ranges from 25 to 55 μm, leading to a diffusion controlled process.
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Production of Alpha Amylase by Bacillus Cereus in Submerged Fermentation

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Optimization of Multiple Response Using Taguchi-WPCA in ST 60 Tool Steel Turning Process with Minimum Quantity Cooling Lubrication (MQCL) Method

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Improvement of Soil Physical Properties of Cambisol Using Soil Amendment

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Production of Alpha Amylase by Bacillus Cereus in Submerged Fermentation

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Optimization of Multiple Response Using Taguchi-WPCA in ST 60 Tool Steel Turning Process with Minimum Quantity Cooling Lubrication (MQCL) Method

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Improvement of Soil Physical Properties of Cambisol Using Soil Amendment

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