Overpressure-generating Mechanisms in the Blok F3, North Sea, Netherland

block f3 north sea is a block with pore pressure values that vary over time due to complex geological conditions such as burial and various sedimentation zones. pore pressure is one of the important a...

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

lithofacies classification is a process to identify rock lithology by indirect measurements. usually, the classification is processed manually by an experienced geoscientist. this research presents an...

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

the use of a low-cost biosorbent prepared from ipomoea pes-caprae stem for the adsorption of cd(ii) ions from aqueous solution at different contact times, biosorbent sizes, ph values, and initial cd(i...

Utilization of Oyster Shells as A Substitute Part of Cement and Fine Aggregate in the Compressive Strength of Concrete

the compressive strength of concrete depends on the physical characteristics of the concrete forming materials. oyster shells originating from krueng neng, aceh besar are very abundant, left unattende...

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

anoi itam beach (aib), located in the eastern part of weh island, has the sediment characteristic of dark-sand color. climatologically, the beach is influenced by two seasons, i.e., south-west (sw) m...

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

egg-shell, a locally obtainable biowaste material, was successfully used for common textile dye (congo red) removal from synthetic wastewater solution. all adsorptive experiments were carried out in a...

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

increasing population growth, economic and industrial development will lead to the utilization of natural resources effected on water pollution. one of those activities related to natural resource uti...

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

– bio-solar is one of the natural gemstones found in the province of aceh in indonesia. a recent study suggested that this gemstone could be considered as a vesuvianite type of gemstone. nevertheless,...

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

present work was aimed at the development of α-al2o3 supported znfe2o4 visible-light responsive photocatalysts. znfe2o4 and α-al2o3 supported znfe2o4 were synthesized using co-precipitation method fol...

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

groundwater availability is the main concern in a developing region such as weh island, aceh. to locate groundwater resources, vertical electrical sounding (ves) was used to identify subsurface profil...

Analysis of Digital Divide in Mastery of ICT in Palangka Raya City

this study aims to measure the digital divide by analyzing the influencing factors of the divide (gap) and the effectiveness of ict public services in palangka raya city. the method used for measuring...

Atmospheric Pollutant Flow and Precipitation: Modeling Effects on the Vegetation Ecosystem

because of their fixed life and wide distribution, plants are the first victims of air pollution. the atmosphere is considered polluted when the increase of the rate of certain components causes harmf...

Liquefaction Assessment Using the CPT and Accounting for Soil Ageing

due to its continuous data recording capability, excellent repeatability and accuracy, relatively low cost and simplicity of operation, the cone penetration test (cpt) offers enhanced liquefaction ass...

Development Chitosan-based Forward Osmosis Membranes for Emergency Drinking Water Supply

development of forward osmosis (fo) membranes became one of the alternative methods for drinking water supply in an emergency. in this research, drinking water bags based on fo membrane have been dev...

Effects of Drying TIME on Yield and Moisture Content of “Sumahe” Powdered Drink Using Spray Dryer

as people today are becoming more health-conscious, various efforts have been made to keep up one's health, such as by consuming highly nutritious food and drinks. one of the nutritious food sources p...

Analysis Of Parameter Roasting On Color And Peanuts Roasted Taste

the purpose of this study is to determine the optimum temperature of roasting, optimal rotation speed of tube and roasting time, to produce roasted peanuts with good taste and good colour. the researc...

Characterization of Rare Earth Elements in Tailing of Ex-Tin Mining Sands From Singkep Island, Indonesia

the objective of this research is to determine the rare earth elements (rees) from themonazite minerals content of several tin tailing sands (tts)of ex-tin mining area in kuala raya singkep island, in...

Measuring Passenger Car Unit (PCU) at Four Legged Roundabout Using TIME Occupancy Data Collected From Drone

this study aims to measure the values of passenger car unit (pcu) at a four-legged roundabout based on the time occupancy data in complex traffic operation. within mixed traffic, the pcus are needed a...

Portable Thermoelectric Cooler Box Performance with Variation of Input Power and Cooling Load

the thermoelectric module is a device that works by using the peltier effect when electrical power supplied on it. in this study, the thermoelectric module is applied as thermoelectric cooler (tec) us...

Luwak Coffee Classification Using UV-Vis Spectroscopy Data: Comparison of Linear Discriminant Analysis and Support Vector Machine Methods

uv-vis spectroscopy has been used as a promising method for coffee quality evaluation including in authentication of several high-economic coffee types. in this paper, we have compared the abilities o...