Proceedings of Engineering and Technology Innovation <p><strong><em>Proceedings of Engineering and Technology Innovation</em></strong> (PETI), ISSN 2518-833X (Online), ISSN 2413-7146 (Print), is an international, multidiscipline, open access, peer-reviewed scholarly journal, and dedicated to provide a fast publishing platform for researchers, developers, technical managers, and educators in the field of technology innovation. The official abbreviated titile is <em><strong>Proc. eng. technol. innov.</strong></em> It is published by Taiwan Association of Engineering and Technology Innovation. Currently, there is<em><strong> no any charge</strong></em> for submission and publication of the papers submitted to PETI. You are invited to submit your works to the journal.</p> <p>PETI is indexed by:</p> <p><img src="/public/site/images/allen/DOAJ-small2.png">&nbsp;<img src="" alt="">&nbsp;&nbsp; <img src="" alt="">&nbsp;&nbsp; <img src="" width="74" height="35">&nbsp;&nbsp; <img src="" alt="">&nbsp;&nbsp;<img src="" alt="">&nbsp;&nbsp;<img src=""> <img src="" alt=""> &nbsp;<img src="/public/site/images/allen/Publons-22.5_1.png"> &nbsp; <img src="/public/site/images/allen/crossref3.png" width="92" height="42"></p> <p>Under evaluation of SCI(E), Scopus, Compendix(EI), INSPEC, etc.</p> <p>&nbsp;</p> Taiwan Association of Engineering and Technology Innovation en-US Proceedings of Engineering and Technology Innovation 2413-7146 <hr> <p style="line-height: 150%;"><span style="font-family: Times New Roman;">Submission of a manuscript implies: that the work described has not been published before that it is not under consideration for publication elsewhere; that if and when the manuscript is accepted for publication. Authors can retain copyright of their article with no restrictions. Also, author can post the final, peer-reviewed manuscript version (postprint) to any repository or website.</span></p> <p>&nbsp;</p> <p style="line-height: 150%;"><img alt="" src="/public/site/images/ijeti/cc.png"><br><span style="font-family: Times New Roman, Times, serif;">Since Oct. 01, 2015, PETI will publish new articles with Creative Commons Attribution Non-Commercial License, under </span><span style="font-family: Times New Roman, Times, serif;"><a href="">The Creative Commons Attribution Non-Commercial 4.0 International (CC BY-NC 4.0) License</a>.<br>The Creative Commons Attribution Non-Commercial (CC-BY-NC) License permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes</span></p> Hybrid Speed Controller Design Based on Sliding Mode Controller Performance Study for Vector Controlled Induction Motor Drives <p>The discontinuous control of the sliding mode control (SMC) law causes chattering phenomenon in system trajectories (the oscillation around the desired value), which results in various unwanted effects such as current harmonics and torque ripples. Therefore, this study aims to investigate the performance of a sliding mode speed controller for a three-phase induction motor (IM) controlled by a rotor flux orientation technique to obtain optimum performance. The study results show that the experimental control gains found in the control law have a clear effect on limiting chattering and the system response speed. According to the study results, a hybrid controller is designed based on the fuzzy logic control (FLC) approach to optimally tune these gains. The designed hybrid controller is verified by experimental approximation of simulations using Matlab/Simulink. The simulation results show that the hybrid controller reduces the chattering phenomenon and improves the system’s dynamic performance.</p> Abdülhamit Nurettin Nihat İnanç Copyright (c) 2021 Abdülhamit Nurettin, Nihat İnanç 2021-07-19 2021-07-19 19 01 15 10.46604/peti.2021.7717 Fish Species Detection Application (FiSDA) in Leyte Gulf Using Convolutional Neural Network <p>This study presents an application that employs a machine-learning algorithm to identify fish species found in Leyte Gulf. It aims to help students and marine scientists with their identification and data collection. The application supports 467 fish species in which 6,918 fish images are used for training, validating, and testing the generated model. The model is trained for a total of 4,000 epochs. Using convolutional neural network (CNN) algorithm, the best model during training is observed at epoch 3,661 with an accuracy rate of 96.49% and a loss value of 0.1359. It obtains 82.81% with a loss value of 1.868 during validation and 80.58% precision during testing. The result shows that the model performs well in predicting Malatindok and Sapsap species, after obtaining the highest precision of 100%. However, Hangit is sometimes misclassified by the model after attaining 55% accuracy rate from the testing results because of its feature similarity to other species.</p> Gil Gabornes Dialogo Larmie Santos Feliscuzo Elmer Asilo Maravillas Copyright (c) 2021 Gil Gabornes Dialogo 2021-08-05 2021-08-05 19 16 27 10.46604/peti.2021.7892 A Modified Design of Class-E Power Amplifier with Balanced FETs and High Output Power for RFID Applications <p>In Radio Frequency (RF) communication, a Power Amplifier (PA) is used to amplify the signal at the required power level with less utilization of Direct Current (DC) power. The main characteristic of class-E PA is sturdy nonlinearity due to the switching mode action. In this study, a modified design of class-E PA with balanced Metal Oxide Semiconductor Field Effect Transistors (MOSFETs) and high output power for Electronic Article Surveillance (EAS) Radio Frequency Identification (RFID) application is presented. MOSFETs are adjusted to have high output performance of about 80% for RFID-based EAS system. A matching network is also proposed for accurate matching because there are differences in the behavior between RF waves and low frequency waves. The design of a matching network is a tradeoff among the complexity, adjustability, implementation, and bandwidth for the required output power and frequency. The implemented PA is capable of providing 44.8 dBm output power with Power-Added Efficiency (PAE) of 78.5% at 7.7 MHz to 8.7 MHz.</p> Muhammad Noaman Zahid Jianliang Jiang Heng Lu Hengli Zhang Copyright (c) 2021 Muhammad Noaman Zahid, Jianliang Jiang, Heng Lu, Hengli Zhang 2021-07-09 2021-07-09 19 28 37 10.46604/peti.2021.7442 Low Profile Wideband Dual-Ring Slot Antenna for Biomedical Applications <p>In this study, a low-profile, co-planar waveguide (CPW) fed, wideband, and dual-ring slot antenna design for biomedical applications is proposed. The proposed antenna has a total area of 10 mm × 10 mm and a height of 0.4 mm, and is designed by using a thin and biocompatible FR4 epoxy (ε<sub>r</sub> = 4.4) substrate to accomplish human body isolation and great flexibility obtained by implantation. This wideband antenna covers a large bandwidth of industrial scientific and medical (ISM) frequency band, including 902.8 MHz to 928 MHz, 1.395 GHz to 1.4 GHz, 1.427 GHz to 1.432 GHz, 2.4 GHz to 2.485 GHz, and above. The simulation results of return loss, voltage standing wave ratio (VSWR), impedance matching, gain, and radiation pattern of the proposed antenna are obtained through High Frequency Structure Simulator (HFSS) 14 software.</p> Shilpee Patil Vinod Kapse Shruti Sharma Anil Kumar Pandey Copyright (c) 2021 Shilpee Patil, Vinod Kapse, Shruti Sharma, Anil Kumar Pandey 2021-07-09 2021-07-09 19 38 44 10.46604/peti.2021.7790 The Effect of Band-Gap on TiO2 Thin Film Considering Various Parameters <p>The aim of this work is to measure the effect of band-gap on TiO<sub>2</sub> thin films by changing tetrabutylorthotitanate (TBOT), diethanolamine (DEA), and temperature. The sol-gel method is experimentally introduced to find out the better band-gap of TiO<sub>2</sub> thin films by varying the concentration of TBOT (4 ml to 10 ml), DEA (2 ml to 5 ml), and temperature (350°C to 650°C). With the help of an ultraviolet-visible spectrophotometer for the wavelength of 300-900 nm, these thin films are characterized concerning optical properties (transmittance spectra, absorbance spectra, direct band-gap, and indirect band-gap). The direct and indirect band-gaps are found 3.38 eV and 3.25 eV respectively, which are close to or within the standard band-gap range of TiO<sub>2</sub> (3.2 eV to 3.35 eV) and are found at 8 ml TBOT, 3 ml DEA, and a temperature of 550°C.</p> Majedul Haque Mithun Abu Sayed Imteaz Rahaman Copyright (c) 2021 Majedul Haque Mithun, Abu Sayed, Imteaz Rahaman 2021-07-26 2021-07-26 19 45 52 10.46604/peti.2021.7712 Tractor-Implement Tillage Depth Control Using Adaptive Neuro-Fuzzy Inference System (ANFIS) <p>This study presents a design of an adaptive neuro-fuzzy controller for tractors’ tillage operations. Since the classical controllers allows plowing depth errors due to the variations of lands structure, the use of the combined neural networks and fuzzy logic methods decreases these errors. The proposed controller is based on Adaptive Neuro-Fuzzy Inference System (ANFIS), which permits the generation of fuzzy rules to cancel the nonlinearity and disturbances on the implement. The design and simulations of the system, which consist of a hitch-implement mechanism, an electro-hydraulic actuator, and a neuro-fuzzy controller, are conducted in SolidWorks and MATLAB software. The performance of the proposed controller is analyzed and is contrasted with a Proportional Integral Derivative (PID) controller. The obtained results show that the neuro-fuzzy controller adapts perfectly to the dynamics of the system with rejection of disturbances.</p> Aristide Timene Ndjiya Ngasop Haman Djalo Copyright (c) 2021 Aristide Timene, Ndjiya Ngasop, Haman Djalo 2021-05-25 2021-05-25 19 53 61 10.46604/peti.2021.7522