This paper explores and elucidates the concept of Cryptocurrency. It contributes a framework of digital money and also provides an analysis of the price range, which influences Cryptocurrency volume and market capitalisation. Findings from the OLS analysis show that the low price genre influences the volume and market capitalization of Cryptocurreny. Based on the results, the paper develops a price, volume and market capitalization framework for Cryptocurrency. The findings provide a practical and conceptual contribution for investors and future researchers on the concept of digital currency.
{"title":"DIGITAL CURRENCY: A CONCEPTUAL FRAMEWORK OF PERFORMANCE","authors":"C. Ngwakwe","doi":"10.29081/jesr.v28i4.009","DOIUrl":"https://doi.org/10.29081/jesr.v28i4.009","url":null,"abstract":"This paper explores and elucidates the concept of Cryptocurrency. It contributes a framework of digital money and also provides an analysis of the price range, which influences Cryptocurrency volume and market capitalisation. Findings from the OLS analysis show that the low price genre influences the volume and market capitalization of Cryptocurreny. Based on the results, the paper develops a price, volume and market capitalization framework for Cryptocurrency. The findings provide a practical and conceptual contribution for investors and future researchers on the concept of digital currency.","PeriodicalId":15687,"journal":{"name":"Journal of Engineering Studies and Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46455040","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}
This paper examined power supply at DELSUTH with the aim of mitigating effects of voltage deviation. The 11KV feeder from 7.5MVA substation which supplies the Hospital was analyzed using Dynamic Voltage Restorer (DVR) device on ETAP 16.0 software environment. It was observed that load flow analysis is vital in understanding the operating nature of the network, by considering the reactive power, voltage deviation magnitude and power losses in the network. From the simulation there was low voltage profile in the transformers feeding the clinical area. The voltage profile was improved by upgrading the network to standard power factor.
{"title":"MITIGATING EFFECTS OF VOLTAGE DEVIATION ON DELSUTH HEALTH CARE FACILITY UTILIZING DYNAMIC VOLTAGE RESTORER (DVR)","authors":"Umukoro Arieyeri Patrick, P. Oshevi̇re","doi":"10.29081/jesr.v28i3.011","DOIUrl":"https://doi.org/10.29081/jesr.v28i3.011","url":null,"abstract":"This paper examined power supply at DELSUTH with the aim of mitigating effects of voltage deviation. The 11KV feeder from 7.5MVA substation which supplies the Hospital was analyzed using Dynamic Voltage Restorer (DVR) device on ETAP 16.0 software environment. It was observed that load flow analysis is vital in understanding the operating nature of the network, by considering the reactive power, voltage deviation magnitude and power losses in the network. From the simulation there was low voltage profile in the transformers feeding the clinical area. The voltage profile was improved by upgrading the network to standard power factor.","PeriodicalId":15687,"journal":{"name":"Journal of Engineering Studies and Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47445432","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}
Radio Frequency is one of the most commonly used technologies in the processing industries like textile, rubber, paper and many other sectors for drying purposes. The RF STALAM 85kW is a machine used to dry the yarn obtained after the dyeing and hydro extraction process. This machine uses radio frequency to remove the moisture content from the dyed yarn. In this research paper, I would like to share the findings of an experiment conducted on the RF STALAM 85kW yarn dryer machine. In this experiment, I have three trials each with and without the steam at variable conveyor belt speeds. The trials have been conducted at conveyor belt speeds of 5m/hr,5.5m/hr and 6m/hr in the presence and absence of steam. The primary objective of the research is to improve the productivity of the STALAM RF machine. The secondary objective of the research is to find out the impact of steam on the yarn drying ability of the machine. The tertiary objective of the research is to find the optimum speed. At the end of the experiment, I calculated the per day production to conclude the optimum speed to run the STALAM RF 85kW yarn drier machine to obtain maximum production with and without steam. From the above research, I have concluded that the conveyor belt speed and steam increase the productivity of the machine.
{"title":"AN EXPERIMENT TO ANALYZE THE IMPACT OF STEAM ON THE PRODUCTIVITY OF THE STALAM RF 85 KW YARN DRYER","authors":"Hemanth Kumar Jawahar","doi":"10.29081/jesr.v28i3.008","DOIUrl":"https://doi.org/10.29081/jesr.v28i3.008","url":null,"abstract":"Radio Frequency is one of the most commonly used technologies in the processing industries like textile, rubber, paper and many other sectors for drying purposes. The RF STALAM 85kW is a machine used to dry the yarn obtained after the dyeing and hydro extraction process. This machine uses radio frequency to remove the moisture content from the dyed yarn. In this research paper, I would like to share the findings of an experiment conducted on the RF STALAM 85kW yarn dryer machine. In this experiment, I have three trials each with and without the steam at variable conveyor belt speeds. The trials have been conducted at conveyor belt speeds of 5m/hr,5.5m/hr and 6m/hr in the presence and absence of steam. The primary objective of the research is to improve the productivity of the STALAM RF machine. The secondary objective of the research is to find out the impact of steam on the yarn drying ability of the machine. The tertiary objective of the research is to find the optimum speed. At the end of the experiment, I calculated the per day production to conclude the optimum speed to run the STALAM RF 85kW yarn drier machine to obtain maximum production with and without steam. From the above research, I have concluded that the conveyor belt speed and steam increase the productivity of the machine.","PeriodicalId":15687,"journal":{"name":"Journal of Engineering Studies and Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43997787","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}
Increasing use of diesel products causes decrease of oil reserves, global warming, increase in the world average and adverse effects on human health and the environment. Emissions from combustion in engines are directly related to the quality, properties and combustion characteristics of the fuel. Since the physical and chemical properties of the fuel affect the atomization characteristics, it is important for increasing the combustion efficiency. The most important fuel properties affecting the combustion of diesel fuel are cetane number, viscosity, density and calorific value. There are many applications in improving the chemical and physical properties of fuel. One of them is nanoparticle (NPs) additives adding in fuel. In this study, it was aimed to improve fuel properties with optimum additive ratio by adding CeO2, TiO2 and Co3O4 nanoparticle additives into biodiesel which are produced from cotton and canola oil. The effects of NPs additives in fuel properties such as viscosity, density, lower calorific value and flash points were investigated.
{"title":"OPTIMIZATION OF THERMOPHYSICAL PROPERTIES, COMBUSTION PERFORMANCE AND HARMFUL EXHAUST GASES OF BIODIESEL FUEL WITH NANOPARTICLE ADDITIVES","authors":"M. Çelik, Cihan Bayindirli","doi":"10.29081/jesr.v28i3.004","DOIUrl":"https://doi.org/10.29081/jesr.v28i3.004","url":null,"abstract":"Increasing use of diesel products causes decrease of oil reserves, global warming, increase in the world average and adverse effects on human health and the environment. Emissions from combustion in engines are directly related to the quality, properties and combustion characteristics of the fuel. Since the physical and chemical properties of the fuel affect the atomization characteristics, it is important for increasing the combustion efficiency. The most important fuel properties affecting the combustion of diesel fuel are cetane number, viscosity, density and calorific value. There are many applications in improving the chemical and physical properties of fuel. One of them is nanoparticle (NPs) additives adding in fuel. In this study, it was aimed to improve fuel properties with optimum additive ratio by adding CeO2, TiO2 and Co3O4 nanoparticle additives into biodiesel which are produced from cotton and canola oil. The effects of NPs additives in fuel properties such as viscosity, density, lower calorific value and flash points were investigated.","PeriodicalId":15687,"journal":{"name":"Journal of Engineering Studies and Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47287893","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}
In this paper the use of active power filter to improve voltage and current distortion caused by the presence of dispersed generation in the distribution system is investigated. The harmonics produced by photovoltaic distributed generation sources is studied and the unified power quality conditioner is introduced as a technique of minimizing these harmonics generated by the presence of distributed generation. The network is modeled and simulated in ETAP 16.0 software environment and harmonic load flow results show an increase in harmonic level when DG is introduced into the network which is subsequently reduced by the introduction of UPQC into the network.
{"title":"HARMONICS LEVEL IMPROVEMENT OF DISTRIBUTED GENERATION INTEGRATED DISTRIBUTION SYSTEM USING UNIFIED POWER QUALITY CONDITIONER","authors":"Perekebina Ebiarede, Atrick Oshevire","doi":"10.29081/jesr.v28i3.005","DOIUrl":"https://doi.org/10.29081/jesr.v28i3.005","url":null,"abstract":"In this paper the use of active power filter to improve voltage and current distortion caused by the presence of dispersed generation in the distribution system is investigated. The harmonics produced by photovoltaic distributed generation sources is studied and the unified power quality conditioner is introduced as a technique of minimizing these harmonics generated by the presence of distributed generation. The network is modeled and simulated in ETAP 16.0 software environment and harmonic load flow results show an increase in harmonic level when DG is introduced into the network which is subsequently reduced by the introduction of UPQC into the network. ","PeriodicalId":15687,"journal":{"name":"Journal of Engineering Studies and Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41338006","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}
S. Adedokun, A. C. Apata, A. O. Ogundalu, J. R. Oluremi, Adesokan Oyinlola, Olukemi Kehinde Fagbenro, Oseph Adebayo Ige, Abosede Olufunmi Adewoye
This study investigated the statistical significance of compactive efforts, steel slag and cement on the geotechnical features of the laterite soil. Steel slag and cement were incorporated into the soil. Some geotechnical tests were performed on slag-cement-soil samples. Findings showed that the liquid limit (LL) and plasticity index (PI) decreased with increasing slag content, while cement addition increased LL and PI. As compactive efforts increased, MDD and CBR increased with a corresponding decrease in OMC. A more significant influence of the compactive effort and steel slag on the geotechnical features of the laterite than that of cement was observed.
{"title":"EVALUATION OF THE STATISTICAL SIGNIFICANCE OF COMPACTIVE EFFORTS, SLAG AND CEMENT ON THE GEOTECHNICAL FEATURES OF LATERITE SOIL","authors":"S. Adedokun, A. C. Apata, A. O. Ogundalu, J. R. Oluremi, Adesokan Oyinlola, Olukemi Kehinde Fagbenro, Oseph Adebayo Ige, Abosede Olufunmi Adewoye","doi":"10.29081/jesr.v28i3.001","DOIUrl":"https://doi.org/10.29081/jesr.v28i3.001","url":null,"abstract":"This study investigated the statistical significance of compactive efforts, steel slag and cement on the geotechnical features of the laterite soil. Steel slag and cement were incorporated into the soil. Some geotechnical tests were performed on slag-cement-soil samples. Findings showed that the liquid limit (LL) and plasticity index (PI) decreased with increasing slag content, while cement addition increased LL and PI. As compactive efforts increased, MDD and CBR increased with a corresponding decrease in OMC. A more significant influence of the compactive effort and steel slag on the geotechnical features of the laterite than that of cement was observed.","PeriodicalId":15687,"journal":{"name":"Journal of Engineering Studies and Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45314041","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}
OANA-GEORGETA Ghiorghe, C. Schnakovszky, E. Herghelegiu, C. Tâmpu
The aim of the current paper is to analyze the influence of process parameters on the dimensional accuracy of parts manufactured by Ramor 550 and Ramor 400 armored steel, using the wire electrical discharge machining (WEDM). Two working regimes were used and the processing quality were quantified by measuring the dimensional accuracy of four parameters (three lengths, an angle and a radius). The obtained results emphasized that working regime 002 leaded to larger dimensional deviations compared to working regime 001. Related to the material, the dimensional deviations were larger in case of Ramor 550 armored steel.
{"title":"STUDY ON THE INFLUENCE OF WEDM PROCESSING REGIMES ON THE QUALITY OF ARMOR STEEL","authors":"OANA-GEORGETA Ghiorghe, C. Schnakovszky, E. Herghelegiu, C. Tâmpu","doi":"10.29081/jesr.v28i3.006","DOIUrl":"https://doi.org/10.29081/jesr.v28i3.006","url":null,"abstract":"The aim of the current paper is to analyze the influence of process parameters on the dimensional accuracy of parts manufactured by Ramor 550 and Ramor 400 armored steel, using the wire electrical discharge machining (WEDM). Two working regimes were used and the processing quality were quantified by measuring the dimensional accuracy of four parameters (three lengths, an angle and a radius). The obtained results emphasized that working regime 002 leaded to larger dimensional deviations compared to working regime 001. Related to the material, the dimensional deviations were larger in case of Ramor 550 armored steel.","PeriodicalId":15687,"journal":{"name":"Journal of Engineering Studies and Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45667326","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}
The work presents the results of the experimental manufacturing process on a 10 kW-microwave oven of foam glass gravel (FGG) from glass waste (98 wt. %) and silicon carbide (2 wt. %), the sintering/foaming temperature being varied between 910-930 ºC. The paper originality is the significant increase (about 8 times) of the amount of glass-based raw material foamed by the unconventional heating compared to the previous experiments. The main features of the FGG experimental samples were: bulk density between 0.26-0.31 g·cm-3, compressive strength between 8.5-9.7 MPa and thermal conductivity between 0.068-0.077 W/mK, suitable for their use as thermal insulation material in several applications in construction.
{"title":"EXPERIMENTAL MANUFACTURE OF THE FOAM GLASS GRAVEL FROM GLASS WASTE AND SILICON CARBIDE ON A 10 kW-MICROWAVE OVEN","authors":"L. Paunescu, S. Axinte, F. Cosmulescu","doi":"10.29081/jesr.v28i3.009","DOIUrl":"https://doi.org/10.29081/jesr.v28i3.009","url":null,"abstract":"The work presents the results of the experimental manufacturing process on a 10 kW-microwave oven of foam glass gravel (FGG) from glass waste (98 wt. %) and silicon carbide (2 wt. %), the sintering/foaming temperature being varied between 910-930 ºC. The paper originality is the significant increase (about 8 times) of the amount of glass-based raw material foamed by the unconventional heating compared to the previous experiments. The main features of the FGG experimental samples were: bulk density between 0.26-0.31 g·cm-3, compressive strength between 8.5-9.7 MPa and thermal conductivity between 0.068-0.077 W/mK, suitable for their use as thermal insulation material in several applications in construction.","PeriodicalId":15687,"journal":{"name":"Journal of Engineering Studies and Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49296973","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}
In this work, the performance of a 500 W permanent magnet synchronous generator was evaluated in MATLAB /Simulink. The Simulink model consists of a wind turbine, a PMSG, and an AC – DC rectifier. The PMSG input parameter were measured and inputted in the Simulink block while the output results were voltages, currents and power respectively. The PMSG was tested at various wind speed. At the rated wind speed of 11m/s, the output power was 443.2 W.
{"title":"PERFORMANCE EVALUATION OF A MINI PERMANENT MAGNET SYNCHRONOUS GENERATOR (PMSG) FOR WIND ENERGY SYSTEM","authors":"Timothy Aika, S. Igbinovia, P. Orukpe","doi":"10.29081/jesr.v28i3.002","DOIUrl":"https://doi.org/10.29081/jesr.v28i3.002","url":null,"abstract":"In this work, the performance of a 500 W permanent magnet synchronous generator was evaluated in MATLAB /Simulink. The Simulink model consists of a wind turbine, a PMSG, and an AC – DC rectifier. The PMSG input parameter were measured and inputted in the Simulink block while the output results were voltages, currents and power respectively. The PMSG was tested at various wind speed. At the rated wind speed of 11m/s, the output power was 443.2 W.","PeriodicalId":15687,"journal":{"name":"Journal of Engineering Studies and Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42821169","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}
The IoT platforms have started to be used more and more due to numerous applications in which they can be used. With the growth of devices that transmit data to the cloud of IoT platforms, security challenges have also emerged. The security of IoT platforms can be analysed, identifying vulnerabilities to attacks on each layer of the IoT architecture. In this paper, the authors test, through an active sniffing attack, the cybersecurity of the IoT devices that transmit data to the Cloud of the ThingSpeak platform. Through this attack, it will analyses whether IoT devices send the data to the ThingSpeak platform’s cloud in the clear, without encrypting it.
{"title":"CYBER SECURITY ANALYSIS OF IOT DEVICES TRANSMITTING DATA IN THE THINGSPEAK PLATFORM CLOUD","authors":"Dragoș Andrioaia","doi":"10.29081/jesr.v28i3.003","DOIUrl":"https://doi.org/10.29081/jesr.v28i3.003","url":null,"abstract":"The IoT platforms have started to be used more and more due to numerous applications in which they can be used. With the growth of devices that transmit data to the cloud of IoT platforms, security challenges have also emerged. The security of IoT platforms can be analysed, identifying vulnerabilities to attacks on each layer of the IoT architecture. In this paper, the authors test, through an active sniffing attack, the cybersecurity of the IoT devices that transmit data to the Cloud of the ThingSpeak platform. Through this attack, it will analyses whether IoT devices send the data to the ThingSpeak platform’s cloud in the clear, without encrypting it.","PeriodicalId":15687,"journal":{"name":"Journal of Engineering Studies and Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41358342","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}
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