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Rahmad Abdillah
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Science, Technology, and Communication Journal
Published by Lembaga Studi Pendidikan and Rekayasa Alam Riau
ISSN : -     EISSN : 27748782     DOI : https://doi.org/10.59190/stc
Core Subject : Science, Engineering,
Computer Science & IT Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology
Sintechcom is a periodical publication that publishes scientific articles on research results in the fields of Basic Science, Engineering, and Telecommunications. Scopes of journal are: Chemistry and Chemical Engineering; Physics, Material Sciences, and Mechanical Engineering; Biology, Biological and Bio System Engineering; Food and Agriculture Engineering; Statistics and Mathematics; Computer Science and Computational Science; Earth Science and Engineering; Space Engineering; Electrical Engineering; Environmental Science and Soil Science; Telecommunication; Electronic and Optic Communication; Image Processing, Computer Vision and Pattern Recognition ; Energy Conservation and Renewable Energy; Information System and Artificial Intelligence.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 75 Documents
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Characteristics of fiber Bragg grating due to temperature changes in honey solution Azizah, Yezi Nur; Candra, Wahyu; Fadhali, Mohammed M
Science, Technology and Communication Journal Vol. 2 No. 2 (2022): SINTECHCOM Journal (February 2022)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v2i2.2

Abstract

The high sensitivity and low power consumption of fiber Bragg grating (FBG), has been widely applied in optical technology to measure temperature and strain. Currently, the need for detection by the industrial sector is increasingly being developed, one of which is the detection of characteristics in honey solutions. The use of FBG as a detector has a great opportunity to see the unique characteristics of the honey solution. Therefore, this problem needs to be followed up by analyzing the effect of honey temperature on the FBG output power, changes in Bragg wavelength, and the rate of temperature change. The research method was carried out by placing FBG in a heated honey solution, then measuring the temperature between 30°C – 60°C with an increase of 5°C. The FBG used consists of a wavelength of 1550 nm and 1310 nm which is fed with 1 mW of input power. The results showed that the highest output power of FBG against honey solution B was in the range of 213.60 – 214.58 mW. Changes in Bragg wavelength were quite significant for the increase in temperature of honey solution with a difference of 0.58 – 0.76 nm.
The effect of light waves on polarization mode disperts Erlinda, Sopya; Veriyanti, Velia; Saktioto, Saktioto; Abdullah, Hewa Yaseen
Science, Technology and Communication Journal Vol. 2 No. 2 (2022): SINTECHCOM Journal (February 2022)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v2i2.3

Abstract

Optical fiber is a medium that spreads information in the form of light waves. The quality of the optical fiber can be determined by knowing the dispersion value of the polarization mode which is one of the characteristics of the optical fiber by using a single-mode optical fiber design simulation method using the OptiFiber software. The single-mode optical fibers used in the simulation are SMF-28, SMF-28e, SMF-28e+, SMF-28e+ LL, SMF-28 ULL. A good quality SMF for long-distance communication is an SMF that has a small PMD value.
Investigation of aquifer distribution and groundwater quality in the Village of Rimbo Panjang, Kampar District Fitriani, Riska; Muhammad, Juandi; Sulistyo Rini, Ari
Science, Technology and Communication Journal Vol. 1 No. 1 (2020): SINTECHCOM Journal (October 2020)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v1i1.4

Abstract

The study using the geoelectric method produces resistivity values with different color images. Data is displayed in the form of a collection of 1D and 2D pseudosection points which are then processed using Progress and Res2Dinv software. The 1D cross-section results in the appearance of the subsurface structure vertically or shows the depth and thickness of the subsurface layers. The results of Wenner and Schlumberger configuration data processing show that there are differences in resistivity and depth values on each path but have the same lithology. This is because the Schlumberger configuration can only display 1 point of depth vertically, so the data obtained cannot compare the resistivity horizontally. But the advantage of the Schlumberger configuration is that it is capable of displaying a large depth compared to the Wenner configuration so that it is difficult to read a thin layer of this configuration. The Wenner configuration result displays the depth and length of the layer along the track so that the thickness of the layer from the start of the track to the end of the track can be interpreted. The layer which has a small thickness can be identified using the Wenner configuration, but cannot reach any deeper depths.
Utilization of phase changing materials as air conditioning alternatives in eco-green systems Hikma, Nurfi; Fitri, Ade; Izzah, Ramy Fitrah; Syahputra, Romi Fadli; Zulkarnain, Zulkarnain
Science, Technology and Communication Journal Vol. 2 No. 3 (2022): SINTECHCOM Journal (June 2022)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v2i3.5

Abstract

Prevention of global warming due to high energy consumption and greenhouse gases is a priority for local governments, especially in Pekanbaru City, Indonesia. The use of air conditioning has become a community habit of reducing the temperature of a hot room, but unexpected things can have a negative impact on the surrounding environment. Therefore, this paper provides a simple new idea by using a phase change material (PCM) in the form of an eco-green air cooler system (EGACY) application as a free and passive cooler. EGACY consists of salt hydrates, PCM boxes, iron pipes, fans, solar panels, and batteries as the main components and several other supporting components. The EGACY system works by absorbing cold air and stored by the PCM at night through pipes connected to the outside, then expelled during the day through indoor ceiling vents. The resulting temperature in the room can be controlled at a comfortable temperature from 25°C to 28°C. EGACY is believed to be able to provide the potential for environmentally friendly technology with renewable energy sources.
Modeling of terahertz radiation absorption temperature distribution in biological tissue of a cattle using Simulink-MATLAB model Kurnia, Dewi; Hamdi, Muhammad; Muhammad, Juandi; Saktioto, Saktioto; Yupapin, Preecha; Abdullah, Hewa Yaseen
Science, Technology and Communication Journal Vol. 1 No. 2 (2021): SINTECHCOM Journal (February 2021)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v1i2.6

Abstract

Terahertz radiation (THz) has interesting and effective properties in the field of biomedical imaging techniques, this is because of its ability to interact easily, is not ionized, and does not damage biological tissue. The purpose of this study was to determine the effect of THz radiation power density on temperature distribution and heat production in bovine biological tissue consisting of skin, fat, and muscle using a modeling approach. This study uses biophysical computation techniques with the Simulink-MATLAB model in the 0.1 – 1 THz frequency range, 50 – 150 mW power, and 5 – 25 mW/mm3 power density. Temperature distribution modeling is carried out in two ways, namely with different power densities and variations in the circumference of the THz radiation source. The results showed that the higher the power density used, the greater the absorbed radiation energy with increasing temperature. This causes the temperature distribution in the biological tissue to be wider and the production of heat in the tissue will increase. The results of imaging analysis of temperature distribution to depth in bovine biological tissue, show that fat tissue has less heat production compared to other tissues. The comparison of experimental data and modeling results shows an error percentage of 1.09%.
Overview of temporal soliton transmission on photonic crystal fiber and nanowires Roslan, Muhammad Sufi; Chaudhary, Kashif Tufail; Mazalam, Elham
Science, Technology and Communication Journal Vol. 1 No. 1 (2020): SINTECHCOM Journal (October 2020)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v1i1.8

Abstract

Solitons are nonlinear waves that exhibit persistent propagation in the anomalous dispersion regime. In this article, we demonstrate the generation of soliton pulse in photonic crystal waveguide and nanowire at nonlinear length 6 mm in several photonic crystal waveguides and nanowire including fiberglass, silicon, silica, hollow photonic crystal, and tellurite glass. Optical soliton pulse compression 0.5 ps with increasing order observed in this model. This study reveals the propagation of soliton is feasible at high order mode in silicon nanowire and tellurite glass as compared with normal fiber and photonic crystals.
Decomposition and estimation of gauge transformation for Chern-Simons-Antoniadis-Savvidy forms Hamdan, Suhaivi; Amiruddin, Erwin
Science, Technology and Communication Journal Vol. 2 No. 3 (2022): SINTECHCOM Journal (June 2022)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v2i3.9

Abstract

Cartan's extended homotopy formula is set to obtain the Chern-Simons-Antoniadis-Savvidy (ChSAS) measurement form transformation. This indicates a change in each of the results that the quasi-invariance nature of the gauge with a closed shape under the meter transformation. The results of the initial calculation of the ChSAS form then show a singlet anomaly for each value of n as a dimension variation. These results have illustrated the relationship with the Chern-Simon form theory. The results of the final calculation of the ChSAS shape on the gauge transformation are then described in relation to the Zumino anomaly which reaches an anomaly variation that depends on the p and n terms.
Determination of the most effective WiFi signal intensity area in an enclosed room Zamri, Zamri; Soerbakti, Yan
Science, Technology and Communication Journal Vol. 2 No. 2 (2022): SINTECHCOM Journal (February 2022)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v2i2.10

Abstract

WiFi signal is an electromagnetic wave that in its transmission does not require an intermediary medium used in communication. However, signal intensity can be affected by the medium through which it travels, as is the case in the workplace. So the WiFi signal no longer provides the same strong intensity. Therefore, it is necessary to research how to determine the area with the most effective WiFi signal intensity due to fluctuating signal propagation in a closed workspace. This research is conducted by showing the source point of the router and receiver that will be used as a trip to the position function, then measurements will be made on the WiFi signal depending on the change in position. In addition, the influence of temperature and humidity in the room is also related. The results showed that the highest WiFi signal intensity was at a distance of 0.5 m from the router with a power loss of -47 dBm. While the value of the lowest WiFi signal intensity is in the range of 3 m with a power loss of -25 dBm.
Performances of dye-sensitized solar cell (DSSC) with working electrode of aluminum-doped ZnO nanorods Saputrina, Truly Theresia; Iwantono, Iwantono; Awitdrus, Awitdrus; Umar, Akrajas Ali
Science, Technology and Communication Journal Vol. 1 No. 1 (2020): SINTECHCOM Journal (October 2020)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v1i1.22

Abstract

Renewable energy sources are intensively developed for substituting fossil energy by several routes, such as solar cells and wind power. As a kind of solar cell, dye-sensitized solar cell (DSSC) was studied for low cost and environmentally friendly cell in competing with a silicon-based cell which dominated in the market. But, main problem in DSSC is low current density and power conversion efficiency, especially zinc oxide (ZnO)-based DSSC. In this paper, we enhance the ZnO nanorod properties through the doping of aluminum (Al). For obtaining optimum results, we varied the dopant concentration of 1%, 1.5%, 1%, and 3%. The Al-doped ZnO nanorod was grown by a seed-mediated hydrothermal method at 90oC for 8 hours. The physical properties were analyzed by field emission scanning electron microscopy and EDX, while the photovoltaic properties were analyzed by J-V curve analysis. An improvement of photovoltaic performance up to 200% is obtained by the ZnO nanorod with 1% Al-doped concentration.
Volumetric prediction of symmetrical-shaped fruits by computer vision Yani, Rizky Ardie; Minarni, Minarni; Husein, Ikhsan Rahman
Science, Technology and Communication Journal Vol. 1 No. 1 (2020): SINTECHCOM Journal (October 2020)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v1i1.23

Abstract

Computer vision in the industrial sector has the highest level of need because the work is done automatically and can speed up and save time for work productivity. Not always, work will be done manually by human workers who sometimes have obstacles in the process of taking place. The high cost causes the need for technology to simplify work so it does not materialize. A simple imaging system with computer vision is proposed in this study. Measurement of volume estimates from several samples was carried out to see the efficiency of computer vision imaging work by comparing the measurement results manually and water displacement method. Computer vision imaging is built using a CMOS camera, line laser, Raspberry Pi, Python programming language, and OpenCV. Imaging results show that computer vision has the ability to read the sample volume estimate more effectively against objects that have a symmetrical shape. The smallest error percentage of measurement of volume estimation by computer vision against manual method and the water displacement was 7.44% and 7.18% for sunkist oranges and 10.88% and 13.67% for symmetrical watermelon, respectively.

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