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ISSN:    frecuency : 4   format : Electrónica


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Volume 22 Number 5 Year 2018

16 articles in this issue 

Muhammad Arsyad Thaha, Radianta Triatmadja, Nur Yuwono, Nizam Nizam

Unlike for the bounded domain, the minimum fluidization velocity of the unbounded fluidization domain has not been well developed. The aimed of the research is to formulate the minimum jet (holes) velocity (voc) theoretically and experimentally as the cri... see more

Pags. 1 - 11  

Siti Machmudah, Wahyu Diono, Hideki Kanda, Motonobu Goto

Algae (macro and micro) can be used to produce several high–value metabolites to supply industries as cosmetics, additives and pigments, among others. Those metabolites can have physiological and nutritional benefits for human and animal health. However, ... see more

Pags. 13 - 30  

Naomasa Yamamoto, Kazuya Murakami, Chhouk Kimthet, Wahyudiono Wahyudiono, Siaw Onwona–Agyeman, Hideki Kanda, Motonobu Goto

Supercritical carbon dioxide (CO2) was employed to extract lipids from Vitellaria paradoxa Gaertn seeds in semi–batch process at various operating conditions to optimize extraction process. The extraction processes were carried out at 40 – 60 oC and 20 – ... see more

Pags. 31 - 44  

Natrapee Nakawajana, Jetsada Posom, Jaruwat Paeoui

Rice husk is the significant waste residue to be used as renewable energy. The growth of the use on rice husk for generating electricity lead to the verification of its properties. This research aimed to predict higher heating value (HHV), lower heating v... see more

Pags. 45 - 56  

Sutaporn Meephon, Somchintana Puttamat, Varong Pavarajarn

Photocatalytic degradations of various contaminants using in-house synthesized catalysts have been generally reported, but the degradation intermediates formed are normally inconsistent. This issue is particularly important for the degradation of toxic co... see more

Pags. 57 - 66  

Safaa Hameed Faisal, Salman Hashim Hammadi, Saif Saiwam Mutlak

The reduction of electric power consumption is considered to be a critical issue especially in the areas with elevated temperatures such as Iraq. In Basra city, the electric power consumption due to the air conditioning units (ACU) is so high. In this wor... see more

Pags. 67 - 85  

Armin Azad, Sayed-Farhad Mousavi, Hojat Karami, Saeed Farzin

The present study investigated the applicability of waste vermiculite and dolomite as fine aggregate, known as appropriate mineral adsorbents to enhance the quality of urban runoff, for improving the mechanical properties of porous concrete. 180 samples w... see more

Pags. 87 - 104  

Mathagul Metham, Vacharapoom Benjaoran

Road constructions play a significant role in greenhouse gas (GHG) release into the atmosphere due to a large amount of materials consumption. To reduce emission has an effect on project costs. This research proposes an incentive measure named the Constru... see more

Pags. 105 - 122  

David Lukumu Bampole, Mulaba Bafubiandi

Silicon dioxide is a compound containing two of the most abundant elements in Earth’s crust. One of the main obstacles for upright solvent extraction in a copper (bio)-hydrometallurgical production chain relates to the high silica content and solid colloi... see more

Pags. 123 - 139  

Edwin Lenin Chica Arrieta, Cristian Cardona-Mancilla, J. Slayton, F. Romero, Edwar Torres, Sergio Agudelo, Juan Jose Arbelaez, Diego Hincapie

Three twisted blades of a 1 kW prototype hydrokinetic turbine were designed based on the Blade Element Momentum (BEM) theory with a tip speed ratio of 6.25; water velocity of 1.5 m/s; angle of attack and pitch angle of 5 and 0°, respectively; a power coef... see more

Pags. 141 - 154  

Wisarat Srisungnoen, Wiwat Vatanawood

Precedence Diagram Method (PDM) is a visual representation technique that depicts the activities involved in a project. It is a tool for scheduling activities using nodes to represent activities and their connections with arrows to illustrate activity dep... see more

Pags. 155 - 169  

Chonnakan Thongchai, Boonrat Lohwongwatana, Chedtha Puncreobutr, Atchara Khamkongkaeo, Thanawat Phetrattanarangsi, Burimpak Sakkomolsri, Pinit Kidkhunthod, Narong Chanlek

The influences of 4 wt% bismuth addition and room temperature strain on microstructure and mechanical properties in tin alloys were investigated in this study. Commercially pure tin and Sn-4%Bi alloys were fabricated by permanent mold gravity casting. The... see more

Pags. 171 - 183  

Saiprasit Koetniyom, Manus Dangchat, Songwut Mongkonlerdmanee, Julaluk Carmai, Sunarin Chanta

The paper aims at identifying handbrake control behavior of young Thai volunteer riders by focusing on small underbone-type of motorcycle using a newly developed force measuring device. The device has been invented to measure the handbrake force using the... see more

Pags. 185 - 197  

Sunhapos Chantranuwathana, Ratchatin Chancharoen, Witaya Wannasuphoprasit, Angkee Sripakagorn, Nuksit Noomwongs

Safety and performance have always been important factors in automotive testing. These factors are highly dependent on the tires and suspensions, which should be simulated and tested throughout the development process. During development, Hardware-In-the-... see more

Pags. 199 - 212  

Nabdi Souad, Herrou Brahim

In the face of the competition, the companies have, possibly more than in the past, a need to innovate. However, if the innovation can be of various natures (product, process, methods, organization…), the search for new solutions to technical problems as ... see more

Pags. 213 - 226  

Ladda Tanwanichkul, Wuttikrai Chaipanha, Jumrus Pitaksringkarn

This article aims to analyze the effect of median U-turns and estimate the capacity of primary highways in Thailand using a traffic micro-simulation model. Six-lane and four-lane primary highways were selected for the study. The base condition results det... see more

Pags. 227 - 241