https://sintechcomjournal.com/index.php/stc/issue/feed Science, Technology and Communication Journal 2024-01-04T10:40:53+07:00 Rahmad Abdillah rahmad@sintechcomjournal.com Open Journal Systems <p>Sintechcom Journal: Science, Technology, and Communication Journal is a peer-reviewed journal published regularly in February, June, and October by the <u>Lembaga Studi Pendidikan and Rekayasa Alam Riau</u> in co-working with the Indonesian physical society (PSI)-Chapter of Riau. Sintechcom is a periodical publication that publishes scientific articles on research results in the fields of Basic Science, Engineering, and Telecommunications.</p> <p>Sintechcom journal receives research articles from researchers around the globe, as well as undergraduate and graduate students. Every submitted manuscript has the opportunity to maximize its scientific potential through input from a team of editors and reviewers who are experts in their fields. So that published articles can contribute to the advancement of Science, Technology and Communication. Paper template <a style="background-color: #ffffff;" href="https://drive.google.com/file/d/1E44KN_XUadzQA_Vg7_bEEL8HX4ymzukx/view?usp=sharing" target="_blank" rel="noopener"><strong>here</strong></a></p> https://sintechcomjournal.com/index.php/stc/article/view/250 Performance analysis of metamaterial antennas based on variations in combination and radius of hexagonal SRR 2024-01-04T09:54:28+07:00 Defrianto Defrianto defrianto@lecturer.unri.ac.id Vepy Asyana vepy.asyana@lecturer.unri.ac.id Ari Sulistyo Rini ari.sulistyo@lecturer.unri.ac.id Yan Soerbakti jansoerjansoer@gmail.com Romi Fadli Syahputra romifadli@umri.ac.id <p>The low antenna performance is a concern for researchers to overcome in modern technology. As an effort to overcome this problem, the application of the metamaterial structure to the antenna was carried out to increase the antenna parameters. This study aims to analyze the effect of antenna performance due to the influence of variations in the combination and radius of the SRR hexagonal metamaterial. The research was conducted in a simulation, starting with designing the antenna structure with the metamaterial of two rings into a resonator with a radius variation of 2.5 mm and 2.7 mm, then combining one to four hexagonal SRRs. The results showed that the highest antenna performance was obtained from a combination of four hexagonal SRRs for a radius of 2.7 mm with parameter values in the form of return loss -38.95 dB, a bandwidth of 7.88 GHz at a working frequency of 1.12 – 9.00 GHz and a gain of 5.92 dBi.</p> 2023-10-31T00:00:00+07:00 Copyright (c) 2023 Science, Technology and Communication Journal https://sintechcomjournal.com/index.php/stc/article/view/251 Predictive analysis of waste generation at the Babussalam Islamic Boarding School, Pekanbaru City 2024-01-04T10:01:00+07:00 Rabillah Fathur Rahman 150203006@student.umri.ac.id Yulia Fitri yuliafitri@umri.ac.id Shabri Putra Wirman shabri.pw@umri.ac.id <p>Babussalam Islamic Boarding School is an Islamic educational institution that has education levels ranging from kindergarten, elementary school, junior high school, and high school with a population of students, teachers, and employees in the Islamic Boarding School of Babussalam which is 2248 people. A large population with an area available produces waste generation (organic, paper, and plastic). Research has been conducted related to the generation of waste generated in the Babussalam Islamic Boarding School and the predictions for the next five years. Measurement methods and data calculations use SNI 19-3964-1994. Total solid waste generation in Pesantren Babussalam is 0.3746 kg/person with an average of 0.042 kg/person. The total volume of solid waste generation in Pesantren Babussalam is 98.338 liter/person with an average of 1.37 liter/person. The average composition of organic waste is 0.1392 kg/person with a percentage of 37%. The average composition of waste paper is 0.1374 kg/person with a percentage of 36%. The average composition of plastic waste is 0.1042 kg/person with a percentage of 27%. Waste generation in 2024 is predicted to increase by 35.33371 kg/year, with a total generation in 2024 of 176.668 tons.</p> 2023-10-31T00:00:00+07:00 Copyright (c) 2023 Science, Technology and Communication Journal https://sintechcomjournal.com/index.php/stc/article/view/252 One-dimensional analysis of underground water using geoelectric methods 2024-01-04T10:15:13+07:00 Usman Malik usman.malik@lecturer.unri.ac.id Defrianto Defrianto defrianto@lecturer.unri.ac.id Zulfa Zulfa zulfa@lecturer.unri.ac.id Yohanes Dwi Saputra yohanes.dwi@lecturer.unri.ac.id Juandi Muhammad juandi@lecturer.unri.ac.id <p>The regional development issues in Tambang Kampar District that are most important to solve are environmental issues related to surface water potential and limited clean water. Environmental potential through good environmental management can become potential natural resources that can be utilized to support the regional economic sector. Groundwater potential needs to be studied and interpreted in the matrix of groundwater resource management through geophysical studies, namely by using the geoelectric method. This matrix will be able to provide solutions to environmental problems with the potential for fresh water in Tambang District, Kampar, thereby supporting economic growth in terms of meeting water needs. The material that is the object of research is underground water, and the aspects of research that will be studied include clean water exploration and environmentally friendly management patterns of potential underground water resources. The research location is Tambang District, Kampar, Riau Province. The targeted finding is an environmental management model of potential underground water resources in Tambang Kampar District using the Schlumberger rule geoelectrical method. Fundamental contributions to a field of science are geophysics and environmental science disciplines related to groundwater availability.</p> 2023-10-31T00:00:00+07:00 Copyright (c) 2023 Science, Technology and Communication Journal https://sintechcomjournal.com/index.php/stc/article/view/253 Analysis of fluid flow in a cylindrical tube using fiber Bragg grating 2024-01-04T10:26:48+07:00 Saktioto Saktioto saktioto@lecturer.unri.ac.id Agam Muhammad Maulana saktioto@lecturer.unri.ac.id Preecha Yupapin preecha@techsakon.ac.th Haryana Mohd Hairi saktioto@lecturer.unri.ac.id <p>Fiber Bragg grating (FBG) is an optical sensor component that has better performance than other optical and electronic components. FBG has a very high sensitivity to changes in temperature and strain, is small in size, and is resistant to electromagnetic wave interference and multiplexing. In this study, FBG is used to monitor the fluid flow rate in a pipe by analyzing changes in the output power generated by the FBG. This research was designed by varying the pipe diameter, measurement position, and fluid flow rate. The diameters of the pipes used are 5.95, 7.01, 8.79, and 10.32 mm. The fluid flow rate that passes through each pipe is also varied. The measuring position is placed at 1/3 2/3, and 3/3 pipe diameter. The fluid flow rate and the output power generated by this FBG are measured using an anemometer and optical power meter respectively. The FBG used in this study has a center wavelength of 1310 nm and 1550 nm. In this study, the value of power generated from pipe 1 of position 1 FBG with a wavelength of 1550 nm is 15.1 dBm, while at a wavelength of 1310 nm is -26.23 dBm which indicates that the power generated from FBG with a wavelength of 1310 is the biggest. The speeds obtained at pipe position 1 from the anemometer measurements are 0.79, 1, 1.82, and 2.22 m/s which are directly proportional to the power generated at the 1550 wavelength FBG, -15.1, -15.12, -15.47, and -15.43 dBm, respectively. So it can be concluded that the greater the speed generated by the fluid flow, the greater the power generated.</p> 2023-10-31T00:00:00+07:00 Copyright (c) 2023 Science, Technology and Communication Journal https://sintechcomjournal.com/index.php/stc/article/view/254 Equilibrium of argon plasma particles at high pressure 2024-01-04T10:40:53+07:00 Saktioto Saktioto saktioto@lecturer.unri.ac.id Faisal Zakky saktioto@lecturer.unri.ac.id Reeky Fardinata saktioto@lecturer.unri.ac.id Hewa Yaseen Abdullah hewayaseen@gmail.com Mohammed M Fadhali saktioto@lecturer.unri.ac.id <p>The density value and plasma reaction rate are the physical quantities needed to produce plasma. Both are used to estimate the heat energy and operating time of the plasma. Argon plasma at atmospheric pressure is widely used in industry. Density values and plasma reaction rates were obtained by computational modeling using the continuity equation and the Arrhenius equation obtained from experimental data. Five argon species were used in this research including Ar*, Ar<sup>+</sup>, Ar<sub>2</sub><sup>+</sup>, Ar, and electron. Plasma equilibrium occurs in time intervals of 10<sup>-12</sup> – 10<sup>-3</sup> seconds with a temperature of 2 eV. The overall thermal argon plasma equilibrium density ranges within the interval 10<sup>9</sup> – 10<sup>16</sup> m<sup>-3</sup>. The value of the fastest reaction rate obtained is equal to 2.482 × 10<sup>4</sup> m<sup>-3</sup>.s<sup>-1</sup> until the smallest reaction rate is obtained equal to 14.613 × 10<sup>-34</sup> m<sup>-3</sup>.s<sup>-1</sup>.</p> 2023-10-31T00:00:00+07:00 Copyright (c) 2023 Science, Technology and Communication Journal