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ISSN:    frecuency : 4   format : Electrónica

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Volume 21 Number 4 Year 2017

25 articles in this issue 

Ladawan Wattanachira, Pharkphum Rakruam, Paveetida Yanthongyu, Phantipa Chaimongkol, Suraphong Wattanachira

The main objectives of this study are to evaluate the removal efficiency of bacteriophage Qß using in-line coagulation with ceramic membrane filtration at different coagulant dosages, ceramic membrane pore sizes and initial bacteriophage Qß concentrations... see more

Pags. 1 - 9  

Kanlayanee Yimyam, Aunnop Wongrueng, Pharkphum Rakruam, Saoharit Nitayavardhana, Athit Phetrak, Suthida Theepharaksapan, Suraphong Wattanachira

This research investigated the reduction of dissolved organic matter (DOM) fractions and their trihalomethane formation potentials (THMFPs) by powder activated carbon (PAC) adsorption. Leachate contaminated groundwater around an inactive open-dumping land... see more

Pags. 11 - 23  

Suriyan Saramul

Surface currents in coastal waters can be mapped with high frequency radar (HF radar). In this study, month-long surface vector current data from the Upper Gulf, Central Gulf and Lower Gulf of Thailand (UGOT, CGOT, and LGOT, respectively) were analyzed an... see more

Pags. 25 - 37  

Amin Ghaznavi, Asghar Vatani Oskouei

The analysis and design of gas and oil pipelines is of importance given the fact that they are long and go through lands. They are laid besides the faults and sometimes cross the faults. Various studies have already investigated the design process and the... see more

Pags. 39 - 52  

Maiko Ono, Yukihiro Kawamoto, Chiho Uemori, Wahyu Diono, Hideki Kanda, Motonobu Goto

Supercritical carbon dioxide (SCCO2) is one of the green methods to extract plant matters substances. In this study, SCCO2 has been applied as a media to extract the grains of paradise seeds substances at temperatures of 40 – 80 oC and pressures of 20 – 4... see more

Pags. 53 - 64  

Kouame Joseph Arthur Kouame, Kouakou Alphonse Yao, Fuxing Jiang, Yu Feng, Sitao Zhu

With the increasing depth of mining, rock burst is on the rise. China’s deep mining industry faces such a threat. A major problem of deep mining is high ground stress, which is the major factor of rock burst. Due to the complexity of the rock burst mechan... see more

Pags. 65 - 71  

Anuwat Pachanawan, Somchai Chuan-Udom, Khwantri Saengprachatanarug, Seree Wongpichet

Modern rice mills have increased in size and now operate with improved technological milling systems and tend to use electrical energy increase. The aim of this research was to determine the Electric energy consumption (EEC) and energy conservation of ric... see more

Pags. 73 - 82  

Imam Prasetyo, Rochmadi Rochmadi, Endro Wahyono, Teguh Ariyanto

Due to its specific micropore structure, carbon molecular sieve (CMS) can provide more selective properties than conventional activated carbon in adsorbing molecule from a gaseous mixture. In this research, preparation of CMS for CO2/CH4 separation has be... see more

Pags. 83 - 94  

Pannipha Dokmaingam, Rajesh S. Kempegowda, Suttichai Assabumrungrat, Navadol Laosiripojana

In this work, integrative biomass gasification with solid oxide fuel cell (SOFC) system using rice husk as feedstock was studied under various operations. It was found that the stand-alone mixed air-steam gasification provided significant higher benefit t... see more

Pags. 95 - 110  

Md. Arifuzzaman, Muath Najjar, Mahmud Naser Mahmud, A.B.M Saiful Islam, Muhammad Khan, M. M. Ali

Marl, containing primarily carbonate (CaCO3) and clays of different percentages with occasional traces of organic matter, silt or sand is usually used as bases and sub-bases for roads and highways. Marl is usually used as sub-grade layers or as a backfill... see more

Pags. 111 - 126  

Mahdi O. Karkush, Zaineb Abdul Kareem

The present study investigates the impacts of fuel oil (MFO) on the chemical, physical and mechanical properties of cohesive soil. The contaminant is fuel oil disposed as byproduct from the fuel feeding the electricity power plant at the campus of Univers... see more

Pags. 127 - 137  

Piyarat Sungkhaphan, Juthamas Ratanavaraporn, Siriporn Damrongsukkul

The aim of this study was to develop microspheres from Thai silk fibroin (SF) blended with hyaluronic acid (HA) for controlled release application. HA was introduced to blend with SF to enhance properties of the microspheres. The SF-based microspheres cou... see more

Pags. 139 - 153  

P. N. L. Pavani, C. L. V. R. S. V. Prasad, K. Ramji

In dry turning, control over chip formation and the need for the automated machining lead to an advancement in cutting tools. Such concern towards chip breakability is necessary in reducing tool wear, tool tip temperatures and surface roughness of workpie... see more

Pags. 155 - 169  

Nathee Athigakunagorn

The budget for preserving highway pavement conditions is increasing every year, as well as the impulse to seek transparency of maintenance decisions. This paper presents a new paradigm in applying discrete-event simulation (DES) to capture an indeterminis... see more

Pags. 171 - 182  

Marat Enikeev, Irek Gubaydullin, Marina Maleeva

The paper deals with computer vision and image processing methods applied to the task of corrosion damage search. A step-by-step algorithm is given for processing of the data from a chemical corrosion experiment on a metal surface: image preprocessing, im... see more

Pags. 183 - 192  

Gito Sugiyanto

Scrapped tire rubbers have been proposed as flexible pavement components because they are waste materials. Sustainable development of flexible pavement by utilizing waste tire rubber to replace natural resources generates positive impact to the nature and... see more

Pags. 193 - 206  

Mohd Danial Ibrahim, Yana Shaheera Yunos, Nobuo Watanabe, Nur Alia Athirah Mohtadzar, Siti Noor Haizum Semait, Andrew Ragai Henry Rigit, Yuta Sunami, Wong Lee Kwang, Mohd Rahmat A. Rahman, Muhammad Zaidi Mohtar

This paper presents micro-needle with different tip and inner structure of the needle for optimizations of pain stresses and drug or blood deliveries. The micro-needle comes with several design's parameters of length ranging from 5 mm to 50 mm and diamete... see more

Pags. 207 - 216  

E. S. Bakhoum, Gihan Loutfy Kamel Garas, M. E. Allam, H. Ezz

Better understanding of the properties of cement-based materials, one of the most widely used building materials, at the nano-scale is crucial to improve its functionality in the built environment. This paper presents areas of using nano-materials in impr... see more

Pags. 217 - 227  

Kotchapond Paveebunvipak, Kittipong Yu-on, Teerasak Rotpaisarnkit, Janwat Sakavaratikul, Vitoon Uthaisangsuk

The most important procedure for making a traditional Samurai sword consists of metal forming at high temperature and subsequent quenching. Hereby, two specific techniques are additionally included, namely, fold-forging and mixing of different steel grade... see more

Pags. 229 - 241  

Seksith Tiantongnukul, Akhrawat Lenwari

To assess the post-fire or residual strength of fire-damaged reinforced concrete (RC) members, the most detrimental or peak temperature distribution within the members should be perceived. For RC beams, the residual flexural response is strongly influence... see more

Pags. 243 - 258  

Yasser Abd Djawad, Andi Mu'nisa, Pangayoman Rusung, Abdi Kurniawan, Irma Suryani Idris, Mushawwir Taiyeb

This study aims to extract features of Photoplethysmography (PPG) signal of men and women in healthy subjects using Power Spectral Density (PSD) and Detrended Fluctuation Analysis (DFA). A PPG instrument was used to obtain the PPG signal of 15 men and 15 ... see more

Pags. 259 - 272  

Noaman Akbar Sheikh, Fahim Ullah, Bilal Ayub, Muhammad Jamaluddin Thaheem

Construction organizations strive to increase their competitiveness by reducing the project costs especially labor cost. Optimizing labor productivity will ensure value for money. In the face of no guidelines available for local construction industry, res... see more

Pags. 273 - 286  

Rony Kumer Saha, Yan Zhao, Chaodit Aswakul

This paper presents a centralized 3-dimensional radio resources (namely, time, frequency, and power) allocation and scheduling approach for control-plane and user-plane (C-/U-plane) separation architectures for fifth generation mobile networks. A central ... see more

Pags. 287 - 305  

Wanchalerm Triamlumlerd, Akhrawat Lenwari

For bridge structures, the fatigue crack propagation represents the mechanical damage that shortens the service life of the structures. Most fatigue cracks initiate at the welded details due to geometric discontinuities, residual stresses, and initial wel... see more

Pags. 307 - 324  

Diego C. Fettermann, Fabio C. Freitas

A high range of product is referred as an alternative to better reach specific customer needs. By the other hand, an increase in product portfolio may result in a reduction of company's operational performance. In the automotive sector, there is an increa... see more

Pags. 325 - 338