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Performance Enhancement by Using Wet Pad in Vapor Compression Cooling System Image
Performance Enhancement by Using Wet Pad in Vapor Compression Cooling System Image

Performance Enhancement by Using Wet Pad in Vapor Compression Cooling System

Minimizing Electricity Fuel Cost of Thermal Generating Units by Using Improved Firefly Algorithm Image
Minimizing Electricity Fuel Cost of Thermal Generating Units by Using Improved Firefly Algorithm Image

Minimizing Electricity Fuel Cost of Thermal Generating Units by Using Improved Firefly Algorithm

Effects of Grinding Process on the Properties of the Coal Bottom Ash and Cement Paste Image
Effects of Grinding Process on the Properties of the Coal Bottom Ash and Cement Paste Image

Effects of Grinding Process on the Properties of the Coal Bottom Ash and Cement Paste

Analysis of Protein Separation Mechanism in Charged Ultrafiltration Membrane Image
Journal article

Analysis of Protein Separation Mechanism in Charged Ultrafiltration Membrane

Development of Braking Force Distribution Strategy for Dual\u002DMotor\u002DDrive Electric Vehicle Image
Journal article

Development of Braking Force Distribution Strategy for Dual-Motor-Drive Electric Vehicle

Seismic Behavior of Tunnel Form Building Under Lateral Cyclic Loading Image
Journal article

Seismic Behavior of Tunnel Form Building Under Lateral Cyclic Loading

Analysis of Protein Separation Mechanism in Charged Ultrafiltration Membrane Image
Analysis of Protein Separation Mechanism in Charged Ultrafiltration Membrane Image
Journal article

Analysis of Protein Separation Mechanism in Charged Ultrafiltration Membrane

Development of Braking Force Distribution Strategy for Dual\u002DMotor\u002DDrive Electric Vehicle Image
Development of Braking Force Distribution Strategy for Dual\u002DMotor\u002DDrive Electric Vehicle Image
Journal article

Development of Braking Force Distribution Strategy for Dual-Motor-Drive Electric Vehicle

Seismic Behavior of Tunnel Form Building Under Lateral Cyclic Loading Image
Seismic Behavior of Tunnel Form Building Under Lateral Cyclic Loading Image
Journal article

Seismic Behavior of Tunnel Form Building Under Lateral Cyclic Loading

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Calculation of Peak Particle Velocity Caused by Blasting Vibration in Step Topography Image
Journal article

Calculation of Peak Particle Velocity Caused by Blasting Vibration in Step Topography

High ground vibrations not only adversely affect the integrity of the structures in a mine area but also create inconvenience for the nearby population. In order to protect the Sanyou Mine slope in Tangshan, China from blasting vibration, the peak particle velocity in step topography must be accurately calculated. At present, the reflection coefficient of the stress wave at free interface is not considered in the equation for calculating the peak particle velocity in step topography. Therefore the accuracy of the peak particle velocity calculation is decreased in the side direction when the reflection coefficient changes. In this study, a 3D finite element analysis was employed for modeling of the blasting vibration. A series of field-testing experiments was conducted to measure the peak particle velocity. Then the reflection coefficient of the stress wave was calculated. Based on this, the principle of the peak particle velocity in step topography was explained. In addition, the application range of the equation in step topography was determined and a new equation for peak particle velocity calculation in step topography is proposed based on the numerical simulation analysis and field-testing experiment.
Overview of Health Impacts Due to Haze Pollution in Johor, Malaysia Image
Journal article

Overview of Health Impacts Due to Haze Pollution in Johor, Malaysia

Haze pollution is one of the major environmental issues caused by aerosols, having brought about a history of heavy smog pollution events like the London smog in 1952 and the Los Angeles smog in the 1960s. However, in Malaysia, haze events are attributed to forest and peat fires in Kalimantan and Southern Sumatra, Indonesia. The burned biomass basically contains concentrated particulate matters that are hazardous to health among susceptible population groups. Based on the extensive literature review conducted, the small number of available local studies on the health effects of air pollution in Malaysia conducted so far focused on air pollution sciences. In this paper, a comprehensive overview of studies done on the impacts of haze on health conditions among populations in Malaysia is presented. The result shows that the number of upper respiratory tract infection cases was directly proportional to the particulate matter concentration and Air Pollution Index value in Johor in the years 2014 and 2015. Particulate matteris the major contributor in the formation of heavy hazes and is more likely to initiate detrimental health effects compared to other inhalable particles due to their size, large area, and strong activity, making them more likely to carry harmful substances causing a higher number of infected patients with upper respiratory tract infections.
Shelf\u002Dlife Evaluation of Packaged Fermented Cassava Flour Image
Journal article

Shelf-life Evaluation of Packaged Fermented Cassava Flour

Comparative Study of Bacterial Cellulose Film Dried Using Microwave and Air Convection Heating Image
Journal article

Comparative Study of Bacterial Cellulose Film Dried Using Microwave and Air Convection Heating

Shelf\u002Dlife Evaluation of Packaged Fermented Cassava Flour Image
Shelf\u002Dlife Evaluation of Packaged Fermented Cassava Flour Image
Journal article

Shelf-life Evaluation of Packaged Fermented Cassava Flour

Structured Mathematical Modeling of Industrial Boiler Image
Structured Mathematical Modeling of Industrial Boiler Image
Journal article

Structured Mathematical Modeling of Industrial Boiler

Macro Data Analysis of Traffic Accidents in Indonesia Image
Macro Data Analysis of Traffic Accidents in Indonesia Image
Journal article

Macro Data Analysis of Traffic Accidents in Indonesia

Analysis of Surface Wave Attenuation in Mangrove Forests Image
Analysis of Surface Wave Attenuation in Mangrove Forests Image
Journal article

Analysis of Surface Wave Attenuation in Mangrove Forests

The Kraft Pulp and Paper Properties of Sweet Sorghum Bagasse (Sorghum Bicolor L Moench) Image
The Kraft Pulp and Paper Properties of Sweet Sorghum Bagasse (Sorghum Bicolor L Moench) Image
Journal article

The Kraft Pulp and Paper Properties of Sweet Sorghum Bagasse (Sorghum Bicolor L Moench)

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Case Study of a Small Scale Reverse Osmosis System for Treatment of Mixed Brackish Water and STP Effluent Image
Journal article

Case Study of a Small Scale Reverse Osmosis System for Treatment of Mixed Brackish Water and STP Effluent

A case study on utilizing reverse osmosis (RO) technology to fulfill fresh water needs at a mall and a hotel has been done on Bali Island, Indonesia. A mix of brackish water and sewage treatment plant (STP) effluent was used as feed water in the RO system. The system used 36 membrane elements (CSM RE 8040 BLN) arranged into two stages: 8 pressure vessels (PVs) in the first stage and 4 PVs in the second stage, each loaded with 3 membranes. The objectives of this research were to assess the cleaning effectivity in the plant, to evaluate the cleaning of 1 membrane element using a CIP system, and to assess the use of the membrane for filtration in the pre-treatment system. SEM and FTIR analysis indicated that the foulants on the membrane surface were dominated by organic foulants and inorganic deposits. To clean the discarded membrane the proposed method used NaOH solution (pH 12 and pH 13) and citric acid (pH 2 and pH 3). All membranes displayed a dramatic decline in rejection of about 80%. Based on the rejection tests of SO42-, Cl-, turbidity reduction approached 100%. It can be concluded that an RO membrane that has undergone selectivity decline can be re-used as a filtration membrane in the pre-treatment system.
Two\u002Ddimensional Model of Ciliwung River Flood in DKI Jakarta for Development of the Regional Flood Index Map Image
Journal article

Two-dimensional Model of Ciliwung River Flood in DKI Jakarta for Development of the Regional Flood Index Map

Production of Methyl Laurate From Coconut Cream Through Fractionation of Methyl Ester Image
Journal article

Production of Methyl Laurate From Coconut Cream Through Fractionation of Methyl Ester

Effect of V\u002Dshaped Ribs on Internal Cooling of Gas Turbine Blades Image
Journal article

Effect of V-shaped Ribs on Internal Cooling of Gas Turbine Blades

Two\u002Ddimensional Model of Ciliwung River Flood in DKI Jakarta for Development of the Regional Flood Index Map Image
Two\u002Ddimensional Model of Ciliwung River Flood in DKI Jakarta for Development of the Regional Flood Index Map Image
Journal article

Two-dimensional Model of Ciliwung River Flood in DKI Jakarta for Development of the Regional Flood Index Map

Production of Methyl Laurate From Coconut Cream Through Fractionation of Methyl Ester Image
Production of Methyl Laurate From Coconut Cream Through Fractionation of Methyl Ester Image
Journal article

Production of Methyl Laurate From Coconut Cream Through Fractionation of Methyl Ester

Effect of V\u002Dshaped Ribs on Internal Cooling of Gas Turbine Blades Image
Effect of V\u002Dshaped Ribs on Internal Cooling of Gas Turbine Blades Image
Journal article

Effect of V-shaped Ribs on Internal Cooling of Gas Turbine Blades

Journal article

Reliability of Estimation Pile Load Capacity Methods

Reliability of Estimation Pile Load Capacity Methods Image
Journal article

Cost Minimization Model of Gas Transmission Line for Indonesian SIJ Pipeline Network

Cost Minimization Model of Gas Transmission Line for Indonesian SIJ Pipeline Network Image
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