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Hairi, Haryana Mohd
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Computer Science & IT Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology

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Novel approach peak tracking method for FBG: Gaussian polynomial technique Meyzia, Bunga; Emrinaldi, Tengku; Wanara, Nadiah; Hanto, Dwi; Widyatmoko, Bambang; Rianaris, Agitta; Syahadi, Mohamad; Hairi, Haryana Mohd
Science, Technology and Communication Journal Vol. 4 No. 3 (2024): SINTECHCOM Journal (June 2024)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v4i3.262

Abstract

This paper presents a novel approach for tracking the peaks in the FBG spectrum using the Gaussian polynomial method. The proposed algorithm involves preprocessing the FBG signal, detecting the peaks, and fitting the peaks with a Gaussian function. The performance of the algorithm is evaluated using both simulated and experimental FBG spectra. This method involves fitting a Gaussian function to the peak of interest and using the fitted parameters to estimate peak height, width, and location. The method is highly accurate and precise and can provide detailed information about peak shape and position, making it effective for tracking complex or overlapping peaks. However, the method can be computationally intensive and may require careful selection of initial parameters to ensure accurate results. Despite these limitations, the Gaussian polynomial method is a powerful tool for peak tracking and analysis in various application.
Electrical discharge of butane and propane for carbon plasma with air impurities, slightly ionized at high pressure Husein, Ikhsan Rahman; Nawi, Nina Diana; Hairi, Haryana Mohd
Science, Technology and Communication Journal Vol. 1 No. 3 (2021): SINTECHCOM Journal (June 2021)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v1i3.201

Abstract

This paper investigates the ionization of butane and propane gas in the formation of carbon plasma with air impurities. The formation of carbon plasma is designed and operated by using a commercial pencil graphite electrode with a directionally electrical discharge method of less than 3.5 kV, injecting butane and propane gas with a mixture of air, pressure variations into the tube. Experimental results show the voltage and current before and after the breakdown voltage. The density and temperature of the plasma carbon are calculated from the current and the breakdown voltage. These results depicts that the ionization of air at a pressure of 12 cmHg (570 V) produces a breakdown voltage of 530 – 570 V and current of 0.27 – 0.45 mA, whereas at pressure of 37 cmHg (1160 V) produces breakdown voltage of 900 – 1100 V and current of 0.46 – 0.6 mA. The ionization of the butane and propane (with impurities of air) at pressure of 26 cmHg (1199 V and 1137 V) produces breakdown voltage of 831 – 1202 V, 839 – 1138 V and current of 0.07 – 0.65 mA, 0.08 – 0.63 mA. At the pressure of 46 cmHg (1828 V and 1590 V) produces breakdown voltage of 1246 – 1781 V, 1021 – 1627 V and current of 0.04 – 0.99 mA, 0.05 – 1.12 mA. These results indicate that the carbon plasma density increases with the increase of electrical voltage. This report shows good agreements for developing the growth of carbon nano tube on the surface of cathode which is generally always followed by air impurities at high pressure.
Inspection of birefringence characteristics to establish single-mode fiber quality Zairmi, Yoli; Basdyo, Doni; Hairi, Haryana Mohd; Aziz, Muhammad Safwan Abd; Abdullah, Hewa Yaseen
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.v2i3.215

Abstract

Birefringence characterization has been carried out for single-mode fiber (SMF) consisting of SMF-28, SMF-28e, SMF-28e+, SMF-28e+LL, and SMF-28ULL. The parameters that were varied were the refractive index of the core and the cladding, while the radii of both were equal to the wavelength of 1550 nm. Birefringence characterized by simulation can determine the quality of SMF by knowing the changes in the light propagation constant caused by polarized light on optical fibers. The simulation results show that in SMF-28ULL there is a propagation constant or birefringence which has a large influence compared to other types of SMF such as the magnitude of polarization and reducing power.
Infusion monitoring strategies with wireless systems in infectious and dangerous diseases Oktavia, Dian Putri; Saktioto, Saktioto; Hairi, Haryana Mohd; Asyana, Vepy
Science, Technology and Communication Journal Vol. 5 No. 1 (2024): SINTECHCOM Journal (October 2024)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v5i1.266

Abstract

Intravenous (IV) infusion therapy is a medical procedure that involves the insertion of fluids directly into the patient's vein using a needle/cannula. Mismanagement during infusion fluids replacement due to negligence and shortage of medical personnel and human error must be addressed promptly. Increasing in numbers of patients throughout the Covid-19 pandemic has raised the use of infusion and the error percentage in manual infusion monitoring has also escalated, as consequence, the needs of automatic-handy tools with affordable price become a concern. The infusion monitoring system used consists of three parts, namely sensing and computing, communication, and User. This device allows monitoring and visualization of IV therapy infusion for each patient in real-time, at a remote location.
Co-Authors Abdullah, Hewa Yaseen Asyana, Vepy Aziz, Muhammad Safwan Abd Basdyo, Doni Dian Putri Oktavia, Dian Putri Dwi Hanto Husein, Ikhsan Rahman Meyzia, Bunga Mohamad Syahadi Nawi, Nina Diana Rianaris, Agitta Saktioto Saktioto Tengku Emrinaldi Wanara, Nadiah Widyatmoko, Bambang Zairmi, Yoli