{"title":"Q-LEARNING BASED OBSTACLE AVOIDANCE DATA HARVESTING MODEL USING UAV and UGV","authors":"Erdal Akin, Yakup Sahin","doi":"10.36222/ejt.1237590","DOIUrl":"https://doi.org/10.36222/ejt.1237590","url":null,"abstract":"The Internet of Things (IoT) has revolutionized our lives by providing convenience in various aspects of our lives. However, for the IoT environment to function optimally, it is crucial to regularly collect data from IoT devices. This is because timely data collection enables more accurate evaluations and insights. Additionally, energy conservation is another crucial aspect to consider when collecting data, as it can have a significant impact on the sustainability of the IoT ecosystem. To achieve this, Unmanned Aerial Vehicles (UAVs) and Unmanned Ground Vehicles (UGVs) are increasingly being used to collect data. In this study, we delve into the problem of how UAVs and UGVs can effectively and efficiently collect data from IoT devices in an environment with obstacles. To address this challenge, we propose a Q-learning-based Obstacle Avoidance Data Harvesting (QOA-DH) method, which utilizes the principles of reinforcement learning to make decisions on data collection. Additionally, we conduct a comparison of the performance of UAVs and UGVs, considering the different restrictions and assumptions that are unique to each type of vehicle. This research aims to improve the overall efficiency and effectiveness of data collection in IoT environments and pave the way for sustainable IoT solutions.","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127079982","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}
{"title":"Measurement Resolution in Uncertainty Calculation with the GUM Method Approach: A LabVIEW Application","authors":"H. Citak, S. Bicakci","doi":"10.36222/ejt.1302461","DOIUrl":"https://doi.org/10.36222/ejt.1302461","url":null,"abstract":"GUM (Guide to the Expression of Uncertainty in Measurement) is a method used for calculating uncertainty in measurements. The method involves an uncertainty calculation approach which also constitutes a reference for the international ISO/IEC 17025 standard. In the GUM method, all uncertainties are expressed as standard uncertainty. An uncertainty may incorporate various components where impacts from multiple sources are taken into consideration. Resolution errors resulting from the sensitivity of the measurement equipment has a significant impact in the calculation of uncertainty. Sensitivity of an analog measurement device such as a multimeter depends on the resolution of the ADC it contains. Multimeters with 8-bit resolution ADCs are often used as measurement devices for sensor voltage values to be read once or several times. Factors such as high measurement resolution and reading errors by operators lead to an increase in uncertainty. Multiple data from a sensor or many sensors cause a significant increase in uncertainty, which results in a serious loss of time and labor. In order to mitigate said two factors which increase uncertainty in such cases, analog data needs to be converted to digital data at high resolution and transferred into computer medium. In this study, an D7714 analog/digital converter IC with 24-bit resolution has been used to transfer digital data into computer medium via myRIO 1950. A LabVIEW-based software has been developed to perform register settings for the AD7714 IC and to retrieve data at 24-bit resolution.","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115533603","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}
{"title":"Determination Of Antioxidant Activity of Dietary Selenium, Oleuropein, Glutathione Mixture","authors":"Feryal Akay, G. Kızıl","doi":"10.36222/ejt.1303042","DOIUrl":"https://doi.org/10.36222/ejt.1303042","url":null,"abstract":"Free radicals area unit involved with cellular disorders through their damaging actions on proteins, lipids and DNA and area unit causative factors for an outsized variety of chronic diseases and therefore the aging method. Antioxidants of plant origin hold nice significance and have so gained utmost importance within the recent past. The current research spills inhibition effect of selenium, glutathione and oleuropein mixtures against free radicals and supermolecule chemical action. It was determined that the mixture of oleuropein, glutathione and selenium used in the study inhibited free radicals. It was determined that it competed with the positive control at increasing concentrations. The mixture is intended to be used as a daily support supplement. \u0000The aim of the study is to use the prepared mixture as an alternative to drugs known to have artificial antioxidant properties in the market. One of the aims of this study is to have both drug therapy in the literature and inhibition of ROS-induced damage in the biological system at an early stage.","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122893398","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}
{"title":"Electroanalytical Investigation of Cancer Chemotherapy Drug Vinorelbine On Disposable Pencil Graphite Electrode in Surfactant Media by Voltametric Method","authors":"G. Önal, A. Levent, Z. Şentürk","doi":"10.36222/ejt.1259355","DOIUrl":"https://doi.org/10.36222/ejt.1259355","url":null,"abstract":"One of the biggest global public health issues, cancer has a negative impact on people's health and quality of life. Therefore, it is undeniable that the interest in drugs for cancer treatment has increased. On the other hand, in addition to patient safety during the administration of drugs used in cancer treatment due to their possible toxic properties, it is crucial to maintain a safe working environment and to safeguard the health professionals who provide the treatment from the possibility of coming into touch with this class of medications. At the same time, it is extremely important to develop methods for the analysis of antineoplastic drugs in different environments. \u0000In this study, a new application of disposable pencil-tip graphite electrode for the determination of Vinorelbine, which is one of the semi-synthetic derivatives of Vinca alkaloids, which is in the class of herbal antineoplastic drugs used in cancer treatment, is presented. \u0000Using a pencil-tip graphite electrode, the CV and SWV techniques were used to examine the electrochemical characteristics of vinorelbine throughout a large pH range (2.0-12.0), both without and with surfactant medium. Vinorelbine in BR (pH=10.0) buffer containing 3 mM cationic surfactant (tetra-n-butylammonium bromide) by SW-AdSV technique, it responded voltammetrically with a potential of +0.75 V. The suggested technique has been used successfully with human urine samples that have been spiked with vinorelbine and medication formulations.","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"1999 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128255275","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}
{"title":"Assessment of Risky Buildings according to the Regulation for Determination of Risky Buildings (RDRB 2019): The Case of Şanlıurfa","authors":"İsmail Ümit Çikman, M. E. Öncü, Ş. Koçyi̇ği̇t","doi":"10.36222/ejt.1187068","DOIUrl":"https://doi.org/10.36222/ejt.1187068","url":null,"abstract":"The majority of risky structures in Türkiye’s building stock were constructed before 2000. It has been discovered that buildings constructed before the year 2000 lack engineering services and cannot fulfill the requirements of current regulations. Buildings constructed before 2000 are clearly incapable of providing the required performance and ductility in the event of an earthquake. Therefore, based on the Regulation for Determination of Risky Buildings (RDRB 2019), field studies were conducted on existing buildings built before 2000 in the Siverek district of Şanlıurfa. a two-story reinforced concrete building designed in accordance with field study data was analyzed by following the risk analysis stages for low-rise reinforced concrete buildings in RDRB 2019. An elemental risk analysis was performed on 16 columns, which are vertical elements of the structure, and then a floor-based risk assessment was performed. As a consequence, it was concluded that the building designed in accordance with condition before 2000 was at risk.","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"205 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133933245","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}
{"title":"Optimum Design and Control of a Quick-Return Mechanism Used in a Jewelry Welding Powder Production Machine","authors":"Osman Yi̇ği̇d, Murat Şen","doi":"10.36222/ejt.1181023","DOIUrl":"https://doi.org/10.36222/ejt.1181023","url":null,"abstract":"Quick-return mechanism \u0000Sliding mode control \u0000Jewelry welding powder \u0000Optimum design","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117091766","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}
{"title":"Efficiency Analysis in Solar Air Heaters with Attached Internal Fins","authors":"F. Gülçi̇men, H. Karakaya, A. Durmuş","doi":"10.36222/ejt.1186879","DOIUrl":"https://doi.org/10.36222/ejt.1186879","url":null,"abstract":"In this study, an original solar air collector model, those of flow environment was fixed with fins for three different angles at the flow channel's height, was designed. Fixing fins in the flow environment lengthens the flow channel since the fins prevent boundary layer formation in a flow cannel. Apart from this, enlarged surface effect exists along with the effects of the fins, the air temperature at the outlet rises. The effects of fixed fins,for 30°, 45° and 60° angles, on the efficiency of collector were investigated. The collectors were made as standard collectors sets with measurements 0.93x1.93 m2 the flow channels of which have been modified. With the help of results obtained from the experiments, efficiency, Nusselt number, Reynold number values were calculated; and they were compared to each other along with the literature. In the collectors designed for this study, it was observed that the heat transfer increased with the decrease of the fins angles.","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128680978","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}
{"title":"Investigation of Static and Dynamic Analysis of Asynchronous Motors in the Cement Industry","authors":"Hayrullah Çağtay Alkaya, S. Görgülü","doi":"10.36222/ejt.1223666","DOIUrl":"https://doi.org/10.36222/ejt.1223666","url":null,"abstract":"Today, with the developing technology, it is important to establish facilities suitable for industry 4.0 in order to reduce CO2 emissions in factories, ensure efficiency, and automatically monitor the systems. Cement Factories are at the forefront of energy-intensive sectors. The cement industry is constantly focused on production, high energy demand and unforeseen failures lead to high-cost loss and systemic crises with the decrease in production/sales targets. Predictive maintenance, which is one of the maintenance methods, is aimed to solve the problems by determining the failure sources that may occur economically by examining and analyzing the physical parameters such as vibration, temperature, frequency changes, amperes, and spectra of the asynchronous motors in the field in trend data. In this study, dynamic and static analysis of large power asynchronous motors with a stator voltage of 6300V in cement plants are analyzed with the help of advanced measuring instruments. As a result of the analyses, a general evaluation study was carried out on the actions to be implemented in the maintenance plan by identifying the types of failures that may occur in advance.","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121517345","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}
{"title":"Increasing The Tensile Strength of Adhesive T-Type Joints with Bio-Inspired 3D Printed Inserts","authors":"Mirari Ğunav Geçi̇t, Tolga Topkaya","doi":"10.36222/ejt.1078345","DOIUrl":"https://doi.org/10.36222/ejt.1078345","url":null,"abstract":"In the present study, insert materials manufactured with a 3D printer were used to increase the strength of T-type adhesive joints, which have an important area of use in aviation and aerospace applications. Experiments were carried out for 3 different overlap lengths and bending radius. In addition to the unreinforced samples, 4 different insert material designs were used for each overlap length: solid-reinforced model, hollow reinforced model, vertically reinforced model, and horizontally reinforced model. PLA was used as insert material and AL 5754 and 3M DP460 as adherend and adhesive respectively. As a result of the experiments, it was determined that the use of reinforcement material increased the joint strength significantly. It has been determined that the insert model that increases the joint strength the most is the horizontally reinforced model.","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115115279","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}
{"title":"Comparison of Simulation Results for 25 kW Power Output Rooftop PV System","authors":"Taner Di̇ndar, Vedat Esen, Ali Samet Sarkin","doi":"10.36222/ejt.1175023","DOIUrl":"https://doi.org/10.36222/ejt.1175023","url":null,"abstract":"The use of electrical energy from renewable energy sources has increased considerably in recent years. Photovoltaic (PV) solar energy, which is one of the renewable energy sources, takes its source from the sun, which is considered an unlimited source. With the widespread use of photovoltaic systems, some legal regulations by governments have been made for their installation. Simulation programs are used for the design, layout, technical and economic analysis of PV systems. \u0000In this study, the design was made using the PVsyst, PV*SOL, Solarius programs, and the PVGIS website used in PV systems. The projects are designed to have an output power of 25 kW. According to the simulation results, the PVGIS website provides approximate data, since technical details cannot be entered. In the results of PVGIS and all simulation programs, it has been calculated that the system can produce 42-48 MWh of electrical energy annually. Power Ratio (PR) results of the system were in the range of 78-85%. Annual electrical energy production per installed kW has been calculated to be 1436-1635 kWh/year. It is stated that the annual saved CO2 will be 18.66-22.226 tons /year. When the simulation results are analyzed monthly, the differences between the months are remarkable. The reason for these deviations can be explained by the annual solar radiation (kWh/m2) data and databases used by the programs. It has been observed that the simulation programs consider the monthly average temperatures and sunshine durations of the region. \u0000It is thought that there is a need to compare real-time data with simulation results in future studies. It is considered that this study will be helpful for future studies.","PeriodicalId":413929,"journal":{"name":"European Journal of Technic","volume":"162 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123656328","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}