Journal title
ISSN: 2527-8045    frecuency : 4   format : Electrónica

Issues

      see all issue


Skip Navigation Links.

Volume 4 Number 1 Year 2019

13 articles in this issue 

Maqbool S Awan,Arshad Ali,Perviz S,Yousaf S Awan10.17509/ijost.v4i1.4140   Abstract views: 768       PDF downloads: 638

Graphite nanomaterials offer distinct advantages over micro-scale reinforcing fibers in terms of engineering properties and geometric attributes. Thorough dispersion and effective interfacial interactions through proper functionalization of carbon nanofib... see more

Pags. 1 - 16  

Jefri S Bale,Yeremias M Pell,Muhamad Jafri,Rima Selan10.17509/ijost.v4i1.15239   Abstract views: 415       PDF downloads: 456

This study has been conducted to investigate the flexural strength of Borassus Flabellifer Fiber/BFF reinforced polyester composite joint under static condition. Tests were carried out to study the flexural strength of double strap butt joint and single l... see more

Pags. 17 - 27  

Husam Al-Najar,Basel El Hamarneh10.17509/ijost.v4i1.14881   Abstract views: 270       PDF downloads: 312

Gaza strip suffers from a serious shortage in water resources due to the continuous increase in population, life changes, political conditions and drought caused by climate change. Due to increased demand for water for domestic use, resulting accumulation... see more

Pags. 28 - 38  

Muji Setiyo,Noto Widodo,Bagiyo Condro Purnomo,Suroto Munahar,Muhammad Andi Rahmawan,Akbar Luthfi10.17509/ijost.v4i1.12834   Abstract views: 365       PDF downloads: 298

This article presents an investigation of the actual cooling effect on a lab-scale prototype of LPG-fueled vehicles. The cooling effect is obtained from heat absorption by LPG on the vaporizer. Water with a mass flow rate of 1, 2 and 3 lpm is flowed from ... see more

Pags. 39 - 47  

Siti Fatimah Baharudin,Hasimah Binti Alimon,Norhayati Binti Daud10.17509/ijost.v4i1.11141   Abstract views: 391       PDF downloads: 329

The aim of the present paper is to evaluate the phytochemical screening of Sargassum sp and also to investigate the effect of its crude extracts on seed germination and seedling development of Capsicum annum. The samples were dried and made to coarse powd... see more

Pags. 48 - 54  

Amandita 'Ainur Rohmah,Rini Rachmawati10.17509/ijost.v4i1.12680   Abstract views: 248       PDF downloads: 329

Development of technology and application of e-government at city, sub-district, and village become the factor of emergence of Information and Communication Technology-based information service system innovation. Yogyakarta has implemented e-government as... see more

Pags. 55 - 63  

Mangala Nayaggy,Zulfan Adi Putra10.17509/ijost.v4i1.15803   Abstract views: 415       PDF downloads: 337

As the worlds primary source of energy is depleting, an alternative particularly renewable energy is being explored. This work is a preliminary study on fast pyrolysis process of palm kernel shell to produce liquid fuel. The simulation uses pyrolysis data... see more

Pags. 64 - 73  

Nia Amelia,Ade Gafar Abdullah,Yadi Mulyadi10.17509/ijost.v4i1.15804   Abstract views: 735       PDF downloads: 619

The assessment system generally requires transparency and objectivity to assess student performance in terms of abstraction. Fuzzy logic method has been used as one of the best methods to reduce this uncertainty. Therefore, we have conducted a literature ... see more

Pags. 74 - 88  

Muhammad Aziz10.17509/ijost.v4i1.15805   Abstract views: 320       PDF downloads: 340

Currently, the usable energy is basically harvested from the fossil energy sources, including coal, oil, and gas, which are believed to harm the environment due to the emitted GHGs. The awareness to the climate change and limited reserve of fossil energy ... see more

Pags. 89 - 96  

Asep Bayu Dani Nandiyanto,Rosi Oktiani,Risti Ragadhita10.17509/ijost.v4i1.15806   Abstract views: 373       PDF downloads: 1331

Fourier Transform Infrared (FTIR) has been developed as a tool for the simultaneous and quantitative determination of organic components, including chemical bond, as well as organic content (e.g. protein, carbohydrate and lipid). However, until now, there... see more

Pags. 97 - 118  

Donny Oktavian Syah10.17509/ijost.v4i1.14427   Abstract views: 842       PDF downloads: 268

Indonesian automotive sector played an important role to Indonesian GDPs; it contributes 28% in manufacturing composition. The goal of this research is to examine the vertical partnership between tier-1 and tier-2 automotive component companies in Jabodet... see more

Pags. 119 - 133  

Yuni Sri Rahayu10.17509/ijost.v4i1.14923   Abstract views: 323       PDF downloads: 426

Petroleum is a mixture of hydrocarbon complexes with organic compounds from sulfur, oxygen, nitrogen and metal-containing compounds. These organic compounds can be used as substrate for bacterial growth. This study aimed to isolate and identify hydrocarbo... see more

Pags. 134 - 147  

Melani Mediayani,Yudi Wibisono,Lala Septem Riza,Alejandro Rosales Pérez10.17509/ijost.v4i1.15807   Abstract views: 443       PDF downloads: 406

Trending topics in Twitter is a collection of certain topics that are widely discussed by users. This study aims to design a model and strategy for finding trending topics from data streams on Twitter. The research approach was carried out in four stages,... see more

Pags. 148 - 157