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Mathematical Model for Early Diagnosis of Diabetes Mellitus 糖尿病早期诊断的数学模型
2021 International Young Engineers Forum (YEF-ECE) Pub Date : 2021-07-09 DOI: 10.1109/YEF-ECE52297.2021.9505105
Indira Uvaliyeva, Aigerim Ismukhamedova
{"title":"Mathematical Model for Early Diagnosis of Diabetes Mellitus","authors":"Indira Uvaliyeva, Aigerim Ismukhamedova","doi":"10.1109/YEF-ECE52297.2021.9505105","DOIUrl":"https://doi.org/10.1109/YEF-ECE52297.2021.9505105","url":null,"abstract":"Diabetes mellitus is a dangerous chronic disease, which without regular monitoring, healthy lifestyle and proper treatment acquires a severe course, accompanied by a high risk of serious complications. The purpose of the study is to improve the informative value of the oral glucose tolerance test for early diagnosis of diabetes mellitus by eliminating enteric interference and extracting diagnostic information from its data. The article describes a mathematical model of glycemic dynamics. This allowed the introduction of fundamentally new diagnostic parameters of diabetes mellitus - the coefficients of the model, individualized for the examined patient by clinical data. On their basis a new system of early diabetes diagnosis was proposed, the efficiency of which is higher than the current official system, which was proved by an experimental study.","PeriodicalId":445212,"journal":{"name":"2021 International Young Engineers Forum (YEF-ECE)","volume":"56 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113964110","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
Flight control of hybrid drones towards enabling parcel relay manoeuvres 实现包裹接力机动的混合无人机飞行控制
2021 International Young Engineers Forum (YEF-ECE) Pub Date : 2021-07-09 DOI: 10.1109/YEF-ECE52297.2021.9505161
Bruno A. F. Neves, Bruno J. Guerreiro
{"title":"Flight control of hybrid drones towards enabling parcel relay manoeuvres","authors":"Bruno A. F. Neves, Bruno J. Guerreiro","doi":"10.1109/YEF-ECE52297.2021.9505161","DOIUrl":"https://doi.org/10.1109/YEF-ECE52297.2021.9505161","url":null,"abstract":"This work addresses the modeling and controlling process of a hybrid unmanned aerial vehicle (UAV), aimed for parcel delivery with relay maneuvers. Hybrid UAVs bring significant advantages to the drone industry and related applications, such as the capability of flying in two flight modes, rotary and fixed-wing. Nonetheless, this versatility implies the added complexity both in modeling and controlling these vehicles. This work is based on a popular airframe, the Convergence tilt tri-rotor UAV, for which the overall system dynamics for all operation modes are deduced with plausible assumptions. The model is then validated by designing two separate controllers for the main flight modes, rotary and fixed-wing, capable of trajectory tracking in each mode. The control strategy makes use of a custom hybrid control allocation technique that differentiates the control in three parts: vertical, horizontal, and transitional flight modes. Finally, a hybrid controller is proposed, using a finite state machine capable of handling logical events, with the aim to provide control logic to perform autonomous mid flight transitions. The proposed control strategies are validated using Matlab.","PeriodicalId":445212,"journal":{"name":"2021 International Young Engineers Forum (YEF-ECE)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122415286","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: 1
Constrained-optimization in a 3D bin packing realistic problem 三维装箱现实问题的约束优化
2021 International Young Engineers Forum (YEF-ECE) Pub Date : 2021-07-09 DOI: 10.1109/YEF-ECE52297.2021.9505150
Yamil Mateo Rodríguez, J. López, Javier Andión Jiménez
{"title":"Constrained-optimization in a 3D bin packing realistic problem","authors":"Yamil Mateo Rodríguez, J. López, Javier Andión Jiménez","doi":"10.1109/YEF-ECE52297.2021.9505150","DOIUrl":"https://doi.org/10.1109/YEF-ECE52297.2021.9505150","url":null,"abstract":"This article describes the implementation of a new approach in 3D bin packing optimization and tests its performance in different scenarios. It takes into consideration most of the real constraints a logistics company may face when loading cargo and produces several feasible solutions for a system or a human operator to choose from. As a result of the wide range of constraints the algorithm can handle, it is highly customizable and adaptable to different kinds of companies with different interests and procedures. Optimizing bin packing within the current fast-paced supply chain reduces complexity left to humans, decreases costs and frequency in problems that may damage the customer experience and helps to minimise traffic and carbon emissions by maximizing volume utilization.","PeriodicalId":445212,"journal":{"name":"2021 International Young Engineers Forum (YEF-ECE)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134218487","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
Speed Test and Cluster Analysis Processing Method of Hydraulic Mechanism in High-voltage Circuit Breakers 高压断路器液压机构速度试验及聚类分析处理方法
2021 International Young Engineers Forum (YEF-ECE) Pub Date : 2021-07-09 DOI: 10.1109/YEF-ECE52297.2021.9505083
L. Wang, Xudong Deng, Liangfeng Guo, Fan Jiang, Jia Chen, Jinsong Xie, Lijiang Chen, Chuan Liu, Xiaojun Yan
{"title":"Speed Test and Cluster Analysis Processing Method of Hydraulic Mechanism in High-voltage Circuit Breakers","authors":"L. Wang, Xudong Deng, Liangfeng Guo, Fan Jiang, Jia Chen, Jinsong Xie, Lijiang Chen, Chuan Liu, Xiaojun Yan","doi":"10.1109/YEF-ECE52297.2021.9505083","DOIUrl":"https://doi.org/10.1109/YEF-ECE52297.2021.9505083","url":null,"abstract":"As the executive unit of the high-voltage circuit-breakers, the hydraulic mechanism of the circuit breaker is a key guarantee to the opening and closing operation. Therefore, reliable measurement and analysis of its switching speed characteristics are essential for evaluating the operating status of a high-voltage circuit-breaker. In this paper, we proposed the speed measurement principle and the standard process, use a high-voltage circuit breaker tester to carry out the speed testing on the hydraulic mechanisms of two types of high-voltage circuit breakers in Renhe Substation and Jiupan Substation, Chongqing, China. Then, through a cluster analysis method, the test results and failure cause of high-voltage circuit breakers in two substations are analyzed. The proposed standard process and analysis method can be a reliable reference for the characteristic test of high-voltage switches, which can provide reliable technical guidance schemes for the same type of tests.","PeriodicalId":445212,"journal":{"name":"2021 International Young Engineers Forum (YEF-ECE)","volume":"30 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131539288","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
Sensorless Switched Reluctance Machine and speed control: A study to remove the position encoder at high-speed of operation 无传感器开关磁阻电机与速度控制:去除高速运行位置编码器的研究
2021 International Young Engineers Forum (YEF-ECE) Pub Date : 2021-07-09 DOI: 10.1109/YEF-ECE52297.2021.9505048
J. V. Costa, P. Branco
{"title":"Sensorless Switched Reluctance Machine and speed control: A study to remove the position encoder at high-speed of operation","authors":"J. V. Costa, P. Branco","doi":"10.1109/YEF-ECE52297.2021.9505048","DOIUrl":"https://doi.org/10.1109/YEF-ECE52297.2021.9505048","url":null,"abstract":"High-speed electrical machines have been of great interest of study to increase efficiency and outreach storage capabilities. In the case of switched reluctance machines, high-speed operation may represent high cost and difficult implementation. This paper proposes and analyses a new methodology to estimate the position of a switched reluctance machine and remove the sensor of the position to apply the machine as a flywheel at 50000 rpm. The machine is modelled with non-linear characteristics and it is simulated under single-pulse operation due to the high-speed. Two configurations of the sensorless method are presented: robust and sequential methods. Both configurations present advantages and disadvantages in relation to the error of estimation and to the number of estimations. The method is also tested in closed-loop speed control. The estimation of the position from both methods resulted in successful simulation of the machine operating at high speed.","PeriodicalId":445212,"journal":{"name":"2021 International Young Engineers Forum (YEF-ECE)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124515021","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
Wireless Power Transfer System For Electric Vehicle Charging 用于电动汽车充电的无线电力传输系统
2021 International Young Engineers Forum (YEF-ECE) Pub Date : 2021-07-09 DOI: 10.1109/YEF-ECE52297.2021.9505094
Rathy Shankar, Avhad Nilesh Bhausaheb, K. Balu, Kakad Sonal Balu, D. L. Rajnor
{"title":"Wireless Power Transfer System For Electric Vehicle Charging","authors":"Rathy Shankar, Avhad Nilesh Bhausaheb, K. Balu, Kakad Sonal Balu, D. L. Rajnor","doi":"10.1109/YEF-ECE52297.2021.9505094","DOIUrl":"https://doi.org/10.1109/YEF-ECE52297.2021.9505094","url":null,"abstract":"Wireless charging of Electric Vehicles (EV) is a trending research topic. In this paper, a wireless power transfer system (WPTS) is designed and a prototype is built to analyze the wireless charging process. A first analysis is made on the operating principles of wireless power transfer supported on the state of the art of currently used technologies. A Resonant Inductive Power Transfer (RIPT) charging system is selected as the best candidate for a prototype model based on physical and power demands. A controller for the RIPT is proposed along with the sizing of the power converter and compensation networks. Simulation results are obtained, and a prototype is built to scale. Experimental tests are carried out to validate the proposed topology and controller. The obtained waveforms are analyzed, and conclusions are drawn regarding the resonant inductive charger’s overall performance.","PeriodicalId":445212,"journal":{"name":"2021 International Young Engineers Forum (YEF-ECE)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116694841","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: 2
A Multilevel Bidirectional Four-Port DC-DC Converter to Create a DC-Grid in Solid-State Transformers with Hybrid AC/DC Grids 多电平双向四端口DC-DC变换器在混合交流/直流电网的固态变压器中创建直流电网
2021 International Young Engineers Forum (YEF-ECE) Pub Date : 2021-07-09 DOI: 10.1109/YEF-ECE52297.2021.9505158
V. Monteiro, Catia F. Oliveira, J. Afonso
{"title":"A Multilevel Bidirectional Four-Port DC-DC Converter to Create a DC-Grid in Solid-State Transformers with Hybrid AC/DC Grids","authors":"V. Monteiro, Catia F. Oliveira, J. Afonso","doi":"10.1109/YEF-ECE52297.2021.9505158","DOIUrl":"https://doi.org/10.1109/YEF-ECE52297.2021.9505158","url":null,"abstract":"Smart grids are incessantly contemplating new challenges about power electronics technologies, and this paper focuses on the application of solid-state transformers (SSTs) and the forthcoming perspective of hybrid AC/DC grids. In such perspective, a multilevel bidirectional four-port (MB4P) DC-DC converter is proposed to be integrated in a three-phase SST. It interfaces the SST through three independently ports, corresponding to the three-phases, and the other port is used to create a DC grid. The proposed MB4P DC-DC converter has as main features a multilevel operation with seven voltage levels as function of the voltages on both DC sides, as well as the interleaved operation, where the controlled variables have a ripple with a frequency six times higher than the switching frequency. Furthermore, it can operate in buck or boost modes, and with current or voltage control. Besides the voltage and current control, specific attention is given to the proposed PWM. The advanced attributes of the MB4P DC-DC converter are proven by computer simulations and by analytical description, both exploring steady-state and transient-state distinctive requirements.","PeriodicalId":445212,"journal":{"name":"2021 International Young Engineers Forum (YEF-ECE)","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116840659","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: 4
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