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2022 8th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE)最新文献

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A multidimensional comparative analysis of inverters used in wireless power transfer 无线电力传输用逆变器的多维比较分析
Mocanu Vlad, Dobref Vasile, Deliu Florenţiu, Popa Nicolae-Silviu
This paper presents a comparative study of inverters used in the wireless transmission of electricity: fullbridge, half-bridge, half-bridge with mid-voltage point capacitors, class E. The inverter simulation was performed in Matlab Simulink using resistive and reactive loads (LC, RLC). The paper’s purpose is to achieve a multidimensional comparative analysis of each type of inverter used in high-frequency voltages coils supplying for wireless power transmission, determining the advantages and disadvantages for each type o load.
本文对无线输电用的全桥、半桥、带中压点电容的半桥、e类逆变器进行了比较研究,并在Matlab Simulink中使用电阻性和无功负载(LC、RLC)对逆变器进行了仿真。本文的目的是对用于无线电力传输的高频电压线圈中使用的各种逆变器进行多维度的比较分析,确定每种类型负载的优缺点。
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引用次数: 1
A Study of Measurement Systems Analysis by Attributes 基于属性的测量系统分析研究
T. Gueorguiev, D. Tonev, Svetlin Parvanov
The paper presents a critical measurement systems analysis (MSA) of the implementation of "go-no go" gauges for control of mechanical parts. The MSA by attributes is generally overlooked when compared to MSA by variables. Nevertheless, this type of MSA is especially useful when applied in mass production where the use of variable gauges is time-consuming and costly. The outcomes of the study can be adapted to similar measurement systems analysis for other manufacturing processes and mechanical parts.
本文提出了一种关键测量系统分析(MSA),用于机械零件控制的“go-no - go”仪表的实施。与基于变量的MSA相比,基于属性的MSA通常会被忽略。然而,这种类型的MSA是特别有用的,当应用在大规模生产中,使用可变仪表是费时和昂贵的。研究结果可以适用于其他制造过程和机械部件的类似测量系统分析。
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引用次数: 0
Study of the cattle population with the help of remote digital photography and videography 利用远程数码摄影和录像技术研究牛群
D. Saliev, K. Dimitrov, G. Mladenov, Tsvetan Valkovski
This article examines the possibility of recognizing the individual biological units of a specific cattle population, determining their number and physical condition from digital images, using software solutions and systems on a particular pasture.
本文探讨了在特定牧场上使用软件解决方案和系统识别特定牛种群的个体生物单位,从数字图像确定其数量和物理状况的可能性。
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引用次数: 1
Optimizing the operation of the LiDAR sensor 优化激光雷达传感器的运行
C. Oancea
Responsibility for environmental protection belongs to man and has led to a number of actions at various levels (global, continental, regional / zonal, national, local). To achieve this goal, the development of an environmental monitoring system with improved features is a solution. The innovative character is related to the use of a LiDAR (Light Detection and Ranging) distance type sensor to monitor the environment, more precisely to track the physical changes that may occur. The fact that a video camera is not used ensures the robustness of the method, in addition to the lower cost. Basically, the LiDAR sensor is an additional method of tracking possible changes in the environment (deforestation, natural disasters). The objectives to be achieved in this article are related to the establishment of a method for adapting the signal from a LiDAR sensor, used to be integrated in a sensor network structure. Practical solutions to ensure a stable sensor signal are identified and analyzed. By the fact that this type of sensor communicates on a serial bus, a versatility of the presented solution is ensured, being possible an implementation in any programming language and operating system that allows serial communication.
环境保护的责任属于人类,并已导致在各级(全球、大陆、区域/区域、国家、地方)采取若干行动。为了实现这一目标,开发具有改进功能的环境监测系统是一种解决方案。创新之处在于使用LiDAR(光探测和测距)距离型传感器来监测环境,更精确地跟踪可能发生的物理变化。不使用摄像机的事实保证了该方法的鲁棒性,以及较低的成本。基本上,激光雷达传感器是跟踪环境可能变化(森林砍伐、自然灾害)的一种附加方法。本文要实现的目标是建立一种方法来适应来自激光雷达传感器的信号,用于集成在传感器网络结构中。确定并分析了确保传感器信号稳定的实用解决方案。由于这种类型的传感器在串行总线上通信,因此确保了所提出解决方案的多功能性,可以在任何允许串行通信的编程语言和操作系统中实现。
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引用次数: 0
Investigation of the Processes in a Ship 's Bow Thruster with Synchronous Reluctance Motor 同步磁阻电机船首推力器工作过程的研究
Hristo Milushev, N. Djagarov, M. Bonev, J. Djagarova
Bow thrusters are used in marine vessels, ships and boats. Bow thrusters are propulsion devices who improve maneuverability of the ship. They enable easy movement of a ship in confined areas and also for docking purposes. The article proposes a mathematical model of a ship power plant feeding a bow thruster based on a synchronous reluctance motor. With the help of the model, different modes of operation of the power plant were studied, as well as transient modes caused by the control system, as well as by disturbances from the external environment.
船首推进器用于船舶、轮船和小艇。船首推力器是一种提高船舶机动性的推进装置。它们可以使船舶在狭窄的区域内轻松移动,也可以用于停靠目的。本文提出了基于同步磁阻电机的船舶动力装置馈送船首推力器的数学模型。利用该模型,研究了电厂的不同运行模式,以及由控制系统和外部环境扰动引起的暂态模式。
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引用次数: 1
Intuitionistic Fuzzy Estimations of Implementation of Port Knocking on Routeros 路由器端口敲门实现的直觉模糊估计
Ivelina Vardeva
The article presents one of the aspects affecting network security, in particular accessibility to communication devices by executing a sequence of rules for a specific time interval. Intuitionistic fuzzy estimators were used to calculate the degrees of membership non-membership and hesitation margin of the packets falling into the allowed lists. Generalized nets and indexed matrices are used to modeling the processes described port knocking.
本文介绍了影响网络安全的一个方面,特别是通过在特定时间间隔内执行一系列规则来访问通信设备。利用直觉模糊估计法计算了落入允许列表的数据包的隶属度、非隶属度和犹豫余量。采用广义网络和索引矩阵对港口敲打过程进行建模。
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引用次数: 0
Innovative Approach in the Implementation of an Electronic System for Monitoring and Control of Production Processes 生产过程监控电子系统实施的创新方法
A. Manukova-Marinova, K. Krastev
The report addresses issues related to a comprehensive analysis of the elements of the system for monitoring industrial processes. Methods for managing the technological process on a completely new basis by assessing current parameters to ensure the efficiency of production processes and the ability to manage the system according to the presented indicators are presented. The synthesized electronic system for monitoring and control of industrial processes provides technological security and high quality of the final product. The conducted research proves that the obtained experimental results and estimates fall within the permissible limits determined by the standards. A human-machine interface to an electronic system has been developed to qualify the finished product and achieve efficiency, accuracy in monitoring and control of production processes, as well as visualization of the received evaluation.
该报告论述了与全面分析监测工业过程的系统要素有关的问题。通过评估当前参数,在全新的基础上管理工艺过程的方法,以确保生产过程的效率和根据所提出的指标管理系统的能力。用于监测和控制工业过程的综合电子系统提供了技术安全和高质量的最终产品。经研究证明,所得实验结果和估计值均在标准规定的允许范围内。开发了电子系统的人机界面,以对成品进行鉴定,并在生产过程的监测和控制方面实现效率,准确性,以及收到的评估的可视化。
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引用次数: 0
Web-based Platform - a Defining Factor for Career Orientation Under the Conditions of a Pandemic 基于网络的平台——流行病条件下职业定位的决定性因素
I. Evstatiev, G. Georgiev
The flow of information exchange between employers and job seekers - students, PhD students, alumni - are analyzed. The tasks of the career centres to organize and direct the information flows for vacancies in the conditions of a pandemic are presented. A web-based platform is presented, which supports a database for students, PhD students and alumni. The platform allows employers to prepare and send messages to students, taking their professional fields and specialties into account. The relational schema of the database is also presented, as well as the process of publishing a message in the system.
分析了雇主与求职者(学生、博士生、校友)之间的信息流。介绍了职业中心在大流行病条件下组织和指导空缺信息流动的任务。提出了一个基于网络的平台,该平台支持学生、博士生和校友数据库。该平台允许雇主准备和发送信息给学生,考虑到他们的专业领域和特长。给出了数据库的关系模式,以及在系统中发布消息的过程。
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引用次数: 0
Opportunities for rationalization the electricity consumption of a port complex 合理化港口综合设施电力消耗的机会
Neli Simeonova, Ginko Georgiev, Rumen Kirov, Venelin Ivanov
The research on the different characteristics of the power supply system (PSS) of a port complex is done in order to identify measures to improve the operating modes. In general, the features and requirements for the power supply and electrical equipment of the site are presented and the main energy parameters of the main consumers are marked. A theoretical formulation of the study has been synthesized, giving the opportunity to make an analysis of the characteristic coefficients of energy consumption and the additional power losses from the unevenness of the load schedule. A total of seven power substations and 11 outputs were examined and the measurements were performed with professional network analyzers. The results are presented in tabular form and provide an opportunity to make a thorough analysis of the state of the PSS of the site. Based on them, technological solutions can be offered to rationalize the electricity supply and achieve savings in electricity.
对某港口综合体供电系统的不同特性进行了研究,以确定改善供电系统运行方式的措施。总体上介绍了现场供电、用电设备的特点和要求,标注了主要用电量的主要能源参数。综合了本研究的理论公式,使我们有机会分析能源消耗的特征系数和负荷计划不均匀造成的额外功率损失。共检查了7个变电站和11个输出,并由专业网络分析仪进行了测量。结果以表格形式呈现,并提供了对该站点PSS状态进行彻底分析的机会。在此基础上,可以提供技术解决方案,使电力供应合理化,实现电力节约。
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引用次数: 0
Chemical composition of essential oils from different Mentha ssp 不同薄荷属植物精油的化学成分
H. Fidan, S. Stankov, I. Iliev, V. Gandova, A. Stoyanova, Ivaila Dincheva
The chemical composition of six essential oils from three different species of the genus Mentha was determined by GC/MS analysis. The main components in the essential oils were monoterpene oxygen derivatives. The main components in the three samples of the species Mentha piperita L. were menthol (30.35-41.53%), menthone (17.030-22.00%), 1,8-cineole (4.97-5.87%), menthyl acetate (6.45-10.47%), and iso-menthone (3.67-4.90%). The chemical composition of the two samples of M. arvensis L. was presented by menthol (30.35-36.33%), menthone (20.08-20.50%), menthofuran (5.85-9.18%), and α-terpineol (7.18%). Carvone (58.22%) was identified as the major component in M. spicata essential oil sample.
采用气相色谱-质谱联用技术对三种薄荷属植物中6种精油的化学成分进行了测定。精油的主要成分为单萜烯氧衍生物。3种薄荷的主要成分为薄荷醇(30.35 ~ 41.53%)、薄荷酮(17.030 ~ 22.00%)、1,8-桉叶脑(4.97 ~ 5.87%)、乙酸薄荷酯(6.45 ~ 10.47%)和异薄荷酮(3.67 ~ 4.90%)。两种样品的化学成分分别为薄荷醇(30.35 ~ 36.33%)、薄荷酮(20.08 ~ 20.50%)、薄荷呋喃(5.85 ~ 9.18%)和α-松油醇(7.18%)。香芹酮为主要成分,占58.22%。
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引用次数: 2
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2022 8th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE)
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