Pertanika Journal of Science and Technology最新文献_第10页

Environmental Properties of Coconut Fiber/Reinforced Thermoplastic Starch/Beeswax Hybrid Composites 椰子纤维/增强热塑性淀粉/蜂蜡杂化复合材料的环境性能

Pertanika Journal of Science and Technology Pub Date : 2023-10-27 DOI: 10.47836/pjst.31.s1.02

Khuganeshwaran Mogan, Ridhwan Jumaidin, Rushdan Ahmad Ilyas, Zatil Hafila Kamaruddin

{"title":"Environmental Properties of Coconut Fiber/Reinforced Thermoplastic Starch/Beeswax Hybrid Composites","authors":"Khuganeshwaran Mogan, Ridhwan Jumaidin, Rushdan Ahmad Ilyas, Zatil Hafila Kamaruddin","doi":"10.47836/pjst.31.s1.02","DOIUrl":"https://doi.org/10.47836/pjst.31.s1.02","url":null,"abstract":"The creation of degradable biocomposites is anticipated to alleviate the challenges of worldwide environmental contamination and resource exhaustion. The study investigates the effect of coconut fiber on the environmental properties and water affinity behavior of thermoplastic starch/beeswax composite. The biocomposites were fabricated by incorporating the coconut husk fiber range from 10 to 50 wt%. The thermoplastic starch contains cassava starch, glycerol, and beeswax. The modification of the mixture became efficient when the mixing was determined to be stronger when used as a high-pace blender to aid the mixing process. The mixture then underwent a hot compression molding method to form the mixture into the desired sample form. We can conclude from the results that samples with high fiber content absorb less water than those with no fiber content. For moisture absorption, when the fiber content increases, the ability of the fiber to moisture absorption is decreased. The thickness swelling results show that the sample shows less swelling as the fiber percentage increases. For the soil burial test, incorporating 50 wt% coconut fiber decreases the weight reduction for 4 weeks. For the water solubility test, the solubility of 50 wt% is the best. Based on the findings, integrating coconut fiber into the modified thermoplastic cassava starch increases the composite properties relative to the non-reinforcement matrix material starch.","PeriodicalId":46234,"journal":{"name":"Pertanika Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136233944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Systematic Review of Ergonomics Risk Assessment Methods for Pushing and Pulling Activities at Workplace 工作场所推拉活动的人体工程学风险评估方法系统综述

Pertanika Journal of Science and Technology Pub Date : 2023-10-12 DOI: 10.47836/pjst.31.6.29

Hari Krishnan Tamil Selvan, Mohd Nasrull Abdol Rahman

{"title":"A Systematic Review of Ergonomics Risk Assessment Methods for Pushing and Pulling Activities at Workplace","authors":"Hari Krishnan Tamil Selvan, Mohd Nasrull Abdol Rahman","doi":"10.47836/pjst.31.6.29","DOIUrl":"https://doi.org/10.47836/pjst.31.6.29","url":null,"abstract":"It is vital to assess workplace pushing and pulling (PP) activities to manage musculoskeletal injuries among employees. However, there is still no clearly-suited risk assessment method. This systematic review aims to provide an overview of risk assessment methods for PP activities at the workplace. Thus, the review employed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). Two primary journal databases were searched, namely Scopus and Science Direct. Furthermore, to ensure the robustness of the study, the searches were expended via handpicking, snowball identification, and consultation with ergonomics experts. Atlas.ti version 8 software was used to analyse the identified articles thematically. The search resulted in nine articles eligible for the systematic analysis. From the articles, six assessment methods used force measurement as the main indicators, while three assessment methods used the weight of the load as measurement indicators. The assessment tools did not cover all the risk factors for PP activities. Besides, there was a lack of evidence showing the assessment tools or methods' reliability, validity, and usability. This systematic review highlighted the advantages and limitations of existing assessment methods, and no one method fits all. The findings showed that the assessment methods for PP activities still needed a force measurement and did not cover all the significant risk factors associated with PP. In addition, no clarifications were presented regarding the assessment methods’ reliability, validity, and applicability.","PeriodicalId":46234,"journal":{"name":"Pertanika Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135923947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical Investigation on the Distribution of Pressure Coefficients of Modified Building Shapes 修正建筑形状压力系数分布的数值研究

Pertanika Journal of Science and Technology Pub Date : 2023-10-12 DOI: 10.47836/pjst.31.6.28

Siti Rohani Mohd Isdris, Shaharudin Shah Zaini, Mohammad Hafifi Hafiz Ishaik, Mohammad Sharizal Abdul Aziz, Noorhazlinda Abd Rahman

{"title":"Numerical Investigation on the Distribution of Pressure Coefficients of Modified Building Shapes","authors":"Siti Rohani Mohd Isdris, Shaharudin Shah Zaini, Mohammad Hafifi Hafiz Ishaik, Mohammad Sharizal Abdul Aziz, Noorhazlinda Abd Rahman","doi":"10.47836/pjst.31.6.28","DOIUrl":"https://doi.org/10.47836/pjst.31.6.28","url":null,"abstract":"The construction of tall buildings in urban areas has grown in number in recent years. However, architects and engineers face a variety of design challenges due to the variety of heights and shapes of new building designs. This study evaluates the impact of shape mitigation on tall buildings by applying corner modifications, such as chamfered, corner cut, plan changes with height, tapered, and setback, and combining a single modification model. The numerical simulations were carried out using Computational Fluid Dynamic (CFD) simulation with the RNG k-ε type of turbulence model. All single modifications reduced the maximum +Cp and -Cp better than the basic model. The corner-cut model was the most effective method for reducing the suction effect. Combining the setback, chamfering the corner, and twisting the building model at 45° modification was the most effective approach to reduce the maximum +Cp in the 25–42.10% range in Face 1. Modifying a square model with the combination of setback, chamfer, and 45° rotation reduced the maximum -Cp, ranging from 36.9–50%. The composite 1 model and composite 2 model reduced the suction effect in the range of 15.38–33.33% in Face 3. The adoption of composite modification was insignificant in reducing the suction effect on the sidewall, where the maximum -Cp was recorded to be between 3.62–5.43%.","PeriodicalId":46234,"journal":{"name":"Pertanika Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135923764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Extreme Learning Machine Approach for Forecasting the Wholesale Price Index of Food Products in India 一种预测印度食品批发价格指数的极限学习机方法

Pertanika Journal of Science and Technology Pub Date : 2023-10-12 DOI: 10.47836/pjst.31.6.30

Dipankar Das, Satyajit Chakrabarti

{"title":"An Extreme Learning Machine Approach for Forecasting the Wholesale Price Index of Food Products in India","authors":"Dipankar Das, Satyajit Chakrabarti","doi":"10.47836/pjst.31.6.30","DOIUrl":"https://doi.org/10.47836/pjst.31.6.30","url":null,"abstract":"Precise food price forecasting is crucial for any country, and searching for appropriate approach(s) from an assortment of available strategies toward this objective is an open problem. The current Indian Wholesale Price Index (WPI) series contains sixty individual food items in the 'manufacture of food product' category. This work considered the monthly data from April 2011 to June 2022, i.e., one hundred thirty-five months' data of these sixty WPIs. The researchers extracted the linearity, curvature, and autocorrelation features for each WPI. The curvature and linearity-based grouping of these WPIs revealed that the WPIs are heterogeneous. This work proposed an extreme learning machine (ELM) approach for forecasting these WPIs. The present work employed the following twenty-two time-series forecasting techniques: six standard methods (Auto ARIMA, TSLM, SES, DES, TES, and Auto ETS), five neural networks (Auto FFNN, Auto GRNN, Auto MLP, Auto ELM, and proposed ELM), and eleven state-of-art techniques (two ARIMA-ETS based ensembles, an ARIMA-THETAF-TBATS based ensemble, one MLP, and seven LSTM-based models) to identify the best forecasting approach for these WPIs. For the majority of WPIs, the offered ELM attained suitable performance in the case of fifteen months of out-of-sample forecasting. Nearly eighty-seven percent of cases achieved high accuracy (MAPE ≤ ten) and outshined others. Upon accuracy comparison, both forecast-MAPE and forecast-RMSE, between the proposed ELM and others, this paper observed that the proposed ELM's performance is more favorable. This paper's findings imply that the proposed ELM is a promising prospect to offer accurate forecasts of these sixty WPIs.","PeriodicalId":46234,"journal":{"name":"Pertanika Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135963455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dibenzofuran Degradation by Bacterial Community in Landfill Leachate 垃圾渗滤液中细菌群落降解二苯并呋喃的研究

Pertanika Journal of Science and Technology Pub Date : 2023-10-12 DOI: 10.47836/pjst.31.6.27

Farah Najwa Ahmad, Noor Faizul Hadry Nordin, Muhamad Shirwan Abdullah Sani, Wan Syibrah Hanisah Wan Sulaiman

{"title":"Dibenzofuran Degradation by Bacterial Community in Landfill Leachate","authors":"Farah Najwa Ahmad, Noor Faizul Hadry Nordin, Muhamad Shirwan Abdullah Sani, Wan Syibrah Hanisah Wan Sulaiman","doi":"10.47836/pjst.31.6.27","DOIUrl":"https://doi.org/10.47836/pjst.31.6.27","url":null,"abstract":"The contamination of the environment has been a global issue, and bioremediation is proposed as an option to clean up the contamination sites with the promising utilization of bacterial community capabilities. The indigenous bacterial community in the landfill leachate is recognized to carry enzymes for the degradation of contaminants such as dioxin congeners, the dibenzofuran. Environmental factors have been known to influence the process to achieve successful biodegradation, and the optimized conditions may speed up the biodegradation process. Thus, this study was conducted to optimize the substrate availability, temperature, and pH factor for the degradation of dibenzofuran from landfill leachate by the native bacterial community in landfill leachate. This study uses the one-factor at-time (OFAT) approach to measure dibenzofuran degradation. The landfill leachate with enrichment of dibenzofuran (15 to 45 mg L-1) was incubated at temperatures (30°C to 42°C) and pH (5 to 9) for 24 hours before being extracted and analyzed. From the first part of the study, 15 mg L-1 of dibenzofuran, 30°C temperature, and pH 7 have shown the highest dibenzofuran degradation. Later, the optimum condition of dibenzofuran removal (74.40%) was achieved when the landfill leachate was spiked with 15 ppm dibenzofuran at 30°C and pH 7 for 24 hours. This study proposes optimized conditions that give a better result for dibenzofuran degradation, which may enhance bioremediation.","PeriodicalId":46234,"journal":{"name":"Pertanika Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135963633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nitrogen Dynamics in Soil Treated with Plant-Growth Promoting Bacteria and Urea Fertilizer 植物促生菌与尿素处理土壤氮素动态研究

Pertanika Journal of Science and Technology Pub Date : 2023-10-09 DOI: 10.47836/pjst.31.6.20

Amaily Akter, Ali Tan Kee Zuan, Susilawati Kasim, Adibah Mohd Amin, Zakry Fitri Ab Aziz, Noor Md Rahmatullah, Buraq Musa Sadeq, Sayma Serine Chompa, Md Ekhlasur Rahman

{"title":"Nitrogen Dynamics in Soil Treated with Plant-Growth Promoting Bacteria and Urea Fertilizer","authors":"Amaily Akter, Ali Tan Kee Zuan, Susilawati Kasim, Adibah Mohd Amin, Zakry Fitri Ab Aziz, Noor Md Rahmatullah, Buraq Musa Sadeq, Sayma Serine Chompa, Md Ekhlasur Rahman","doi":"10.47836/pjst.31.6.20","DOIUrl":"https://doi.org/10.47836/pjst.31.6.20","url":null,"abstract":"The mineralization of urea fertilizer significantly impacts nitrogen movement in the soil. An incubation study was done on a lab scale basis to examine nitrogen dynamics in soil inoculated with plant growth-promoting bacteria (PGPB) supplemented with varying levels of nitrogen fertilizer in the form of urea (0% N, 25% N, 50% N, 75% N, and 100% N). In the present experiment, sandy clay loam soil was used and incubated for four weeks, and the concentrations of NH4+‒N and NO3–‒N were monitored using the destructive method (Kjeldahl) to determine the mineralization rate of urea. Results showed higher NH4+‒N (11.880 mg/kg mineralized with UPMRB9N50 treatment) and NO3–‒N (20.060 mg/kg mineralized with UPMRB9N50 treatment) concentrations in the bacteria-treated soil compared to the uninoculated control. Urea-N remains higher (0.0353% and 0.0253% from UPMRB9N50 treatment in the first and second weeks, respectively) in bacteria-treated soil during the first two weeks, then gradually becomes zero towards the end of the observing period. Nitrogen (N) leaching loss was lower in bacterial inoculated soil compared to the control, and the leaching loss of N was greater with the increased N fertilizer rates. Cumulative N leaching loss is higher (29.797 mg/kg) in 100% N-treated soil than in other treatments. The findings observed that the beneficial bacteria could enhance the N mineralization to make the nutrient available for the crop while, at the same time, reducing leaching losses of fertilizer when supplied with a minimum amount of chemical fertilizer, thereby saving the input cost and protecting the environment.","PeriodicalId":46234,"journal":{"name":"Pertanika Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135043931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical Analysis and Validation of Characterization of Polydimethylsiloxane Using Hyper-elastic Constitutive Models 聚二甲基硅氧烷超弹性本构模型表征的数值分析与验证

Pertanika Journal of Science and Technology Pub Date : 2023-10-09 DOI: 10.47836/pjst.31.6.23

Sana Zulfiqar, Abdullah Aziz Saad, Zulkifli Ahmad, Feizal Yusof, Zuraihana Bachok

{"title":"Numerical Analysis and Validation of Characterization of Polydimethylsiloxane Using Hyper-elastic Constitutive Models","authors":"Sana Zulfiqar, Abdullah Aziz Saad, Zulkifli Ahmad, Feizal Yusof, Zuraihana Bachok","doi":"10.47836/pjst.31.6.23","DOIUrl":"https://doi.org/10.47836/pjst.31.6.23","url":null,"abstract":"The most researched elastomer in recent years is polydimethylsiloxane (PDMS), which has several uses in various engineering industries. One of the PDMS’s key characteristics is its hyper-elasticity nature, which enables the production of sensors, flexible electrical circuits, transducers, and antennas. This study used the hyper-elastic constitutive models to predict the mechanical behavior of incompressible, isotropic, and hyper-elastic material PDMS under uniaxial tension. These models are curve-fitting tools that consist of strain energy density and stress functions. To pursue the analysis, a new formulation of PDMS substrate was proposed, and a tensile test was performed to evaluate its stress-strain behavior. The experimental data was implemented on various hyper-elastic models using Abaqus, like Mooney-Rivlin, Yeoh, Ogden, and reduced polynomial models. The goodness of fit of every model was evaluated by calculating R2 values. Consequently, among these models, the reduced polynomial model with 6 material constants possessed the highest R2 value (0.9936) and was considered the best-fit model among the other models. Furthermore, the material constants of this model were applied to the 3D dumbbell-shaped model of PDMS in Abaqus for its validation. The boundary conditions were applied on the model similar to the experimental setup, as 33 mm displacement on one end and the other was fixed with all DOF. For mesh quality and mesh sensitivity of the material, various mesh sizes with the linear formulation (C3D8RH) were utilized, and the best mesh size was selected to evaluate very close results with the experimental.","PeriodicalId":46234,"journal":{"name":"Pertanika Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135043935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel Pre-treatment for Lignocellulosic Biomass Delignification Using Alkaline-Assisted Ohmic Heating 碱辅助欧姆加热对木质纤维素生物质脱木质素的新型预处理

Pertanika Journal of Science and Technology Pub Date : 2023-10-09 DOI: 10.47836/pjst.31.6.22

Izzah Farhana Ab Aziz, Hasfalina Che Man, Muhammad Hazwan Hamzah, Nur Syakina Jamali, Rozita Omar

{"title":"Novel Pre-treatment for Lignocellulosic Biomass Delignification Using Alkaline-Assisted Ohmic Heating","authors":"Izzah Farhana Ab Aziz, Hasfalina Che Man, Muhammad Hazwan Hamzah, Nur Syakina Jamali, Rozita Omar","doi":"10.47836/pjst.31.6.22","DOIUrl":"https://doi.org/10.47836/pjst.31.6.22","url":null,"abstract":"Lignocellulosic biomass (LCB) is a common substrate for biogas and bioethanol production due to its significant properties and abundance. However, it has a unique recalcitrant structure that can inhibit the production of biogas, which necessitates pre-treatment of the substrate to obtain higher cellulose or sugars ready for microbial hydrolysis in producing biogas. In this study, a novel approach for empty fruit bunch (EFB) pre-treatment has been made: ohmic heating pre-treatment. This method is conventionally used in the food industry for pasteurization and extraction. It involves electric current and resistance inside the material that releases heat (Joule effect). A preliminary study has been done to figure out the potential of alkaline assisted with ohmic heating (AA-OH) pre-treatment for EFB. Lignin reduction for AA-OH EFB is higher than EFB that undergoes only size reduction (SR) pre-treatment, which are 15.54% and 11.51%, respectively. After confirming the potential of ohmic heating as one of the pre-treatment methods for EFB, three parameters were investigated (reaction time, temperature, and solvent concentration) by one factor at a time (OFAT) testing to obtain the optimum condition for AA-OH pre-treatment. The optimal condition for achieving a high reduction in lignin (86.9%) and hemicellulose (75%) while also showing a significant increase in cellulose (63.2%), which is desirable for the fermentation process, is achieved by using 4% w/v of NaOH, ohmic-heated at a temperature of 120°C for 25 minutes. To sum up, this developed ohmic heating pre-treatment technique can be applied to LCB prior to biogas or bioethanol production.","PeriodicalId":46234,"journal":{"name":"Pertanika Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135043937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Design of an Efficient Low-Cost FPGA-based Unit for Generation Ultrasound Beamforming 基于fpga的高效低成本超声波束形成装置的设计

Pertanika Journal of Science and Technology Pub Date : 2023-10-09 DOI: 10.47836/pjst.31.6.24

Soufiane Dangoury, Mouncef El marghichi, Mohamed Sadik, Abderrahim Fail

引用次数: 0

Sound Sensor Placement Strategy for Condition Monitoring of Induction Motor Bearing 感应电机轴承状态监测的声传感器放置策略

Pertanika Journal of Science and Technology Pub Date : 2023-10-09 DOI: 10.47836/pjst.31.6.25

Iradiratu Diah Prahmana Karyatanti, Istiyo Winarno, Ardik Wijayanto, Dwisetiono Dwisetiono, Nuddin Harahab, Ratno Bagus Edy Wibowo, Agus Budiarto

{"title":"Sound Sensor Placement Strategy for Condition Monitoring of Induction Motor Bearing","authors":"Iradiratu Diah Prahmana Karyatanti, Istiyo Winarno, Ardik Wijayanto, Dwisetiono Dwisetiono, Nuddin Harahab, Ratno Bagus Edy Wibowo, Agus Budiarto","doi":"10.47836/pjst.31.6.25","DOIUrl":"https://doi.org/10.47836/pjst.31.6.25","url":null,"abstract":"Damage to the bearing elements will affect the rotation of the rotor and lead to the cessation of motor operation. Therefore, it is imperative to monitor the condition of the bearings to provide information on timely maintenance actions, improve reliability, and prevent serious damage. One of the important keys to an effective and accurate monitoring system is the placement of sensors and proper signal processing. Sound signal issued by the motor during operation capable of describing its elements’ condition. Therefore, this study aims to develop a sound sensor placement strategy appropriate for monitoring the condition of induction motor bearing components. This study was carried out on three-phase induction motors’ outer-race, inner-race, and ball-bearing sections with the signal processing method using the spectrum analysis. Furthermore, the effect of sound sensor placement on condition monitoring accuracy was determined using the One-Way Analysis of Variance (One-Way ANOVA) approach. This process tests the null hypothesis and determines whether the average of all groups is the same (H0) or different (H1). Furthermore, Tukey’s test was applied to obtain effective sound sensor placement, with voice-based condition monitoring used for effective identification. The test found that the accuracy of monitoring the bearing condition was 92.66% by placing the sound sensor at 100 cm from the motor body.","PeriodicalId":46234,"journal":{"name":"Pertanika Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135043932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0