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2020 IEEE Canadian Conference on Electrical and Computer Engineering (CCECE)最新文献

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Engagement In a Virtual Learning on Two Social Networks Of An Engineering course using the Social Network Analysis- An approach using a case study 使用社会网络分析在工程课程的两个社会网络上进行虚拟学习-一种使用案例研究的方法
Pub Date : 2020-08-30 DOI: 10.1109/CCECE47787.2020.9255723
Samuel Eneje, S. Sanni, C. F. Pereira
This study aims to investigate learning engagements in two social networks-blog and Facebook, used for engineering course as a scale-up handle to examine the students ‘participation in learning. The research question it used is finding the extent of studenf's engagement on the formal and the informal virtual learning sites. Engineering students' class' social network sites were used for the class activity and dataset was built from their interactions which further provides the social network analysis and statistical tool data to analyze metrics and properties. Collaborated groups were created by social network analysis. It investigated the connections of participants and unveiled network structure of participants' interactions. It found that a structured network such as Facebook are better suitable for learning interactions than a slapdash structured social network site. The study also found that students are more inclined to the former than the blog. The results provide an enlightenment and prior step to choosing appropriate sites should learning be situated on social network sites supplement to laboratory's introductory.
本研究的目的是调查两个社会网络-博客和Facebook的学习参与,用于工程课程作为一个放大把手来检查学生的学习参与。它使用的研究问题是发现学生对正式和非正式虚拟学习网站的参与程度。利用工科学生的班级社交网站进行班级活动,并从他们的互动中建立数据集,进一步提供社会网络分析和统计工具数据来分析指标和属性。协作小组是通过社会网络分析创建的。研究了参与者之间的联系,揭示了参与者互动的网络结构。研究发现,像Facebook这样的结构化网络比草率的结构化社交网站更适合学习互动。研究还发现,学生们更倾向于前者,而不是博客。研究结果为在实验室介绍的基础上选择合适的社交网站提供了启示和先导性步骤。
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引用次数: 2
A Moving Target Approach for Securing Secondary Frequency Control in Microgrids 一种确保微电网二次频率控制的移动目标方法
Pub Date : 2020-08-30 DOI: 10.1109/CCECE47787.2020.9255781
Shichao Liu, R. Kosuru, C. Mugombozi
Microgrids' dependency on communication links exposes the control systems to cyber attack threats. In this work, instead of designing reactive defense approaches, a proacitve moving target defense mechanism is proposed for securing microgrid secondary frequency control from denial of service (DoS) attack. The sensor data is transmitted by following a Markov process, not in a deterministic way. This uncertainty will increase the difficulty for attacker's decision making and thus significantly reduce the attack space. As the system parameters are constantly changing, a gain scheduling based secondary frequency controller is designed to sustain the system performance. Case studies of a microgrid with four inverter-based DGs show the proposed moving target mechanism can enhance the resiliency of the microgrid control systems against DoS attacks.
微电网对通信链路的依赖使控制系统面临网络攻击威胁。本文提出了一种主动移动目标防御机制,以保护微电网二次频率控制免受拒绝服务攻击,而不是设计被动防御方法。传感器数据的传输遵循马尔可夫过程,而不是以确定性的方式。这种不确定性增加了攻击者决策的难度,从而大大减少了攻击空间。针对系统参数的不断变化,设计了一种基于增益调度的二次频率控制器来维持系统的性能。基于四个逆变器的微电网dg的案例研究表明,所提出的移动目标机制可以增强微电网控制系统对DoS攻击的弹性。
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引用次数: 0
PMTRU: An Efficient and Resistant Variant of the NTRU Public Key Cryptosystem PMTRU: NTRU公钥密码体制的一种高效且抗攻击的变体
Pub Date : 2020-08-30 DOI: 10.1109/CCECE47787.2020.9255710
Hamid Hajaje, Z. Guennoun, M. Guennoun
This paper proposes a novel cryptosystem (PMTRU) that is a variant of the NTRU public key cryptosystem. PMTRU combines the advantages of the NTRU and its other variant, MATRU. We prove analytically that our cryptosystem improves the speed of encryption and decryption procedures, and significantly increases the security level of the private key. Compared to NTRU and MATRU, PMTRU greatly improves resistance against brute-force and lattice-based attacks, while decreasing the memory space required to register the public key and ciphertexts.
本文提出了一种新的密码系统(PMTRU),它是NTRU公钥密码系统的变体。PMTRU结合了NTRU及其其他变体MATRU的优点。通过分析证明,我们的密码系统提高了加密和解密过程的速度,并显著提高了私钥的安全级别。与NTRU和MATRU相比,PMTRU大大提高了对暴力破解和基于格的攻击的抵抗力,同时减少了注册公钥和密文所需的内存空间。
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引用次数: 1
Energy Consumption Reduction of the Spectrally-Spatially Flexible Optical Networks Based on the Energy Savings Algorithm 基于节能算法的频谱空间柔性光网络能耗降低
Pub Date : 2020-08-30 DOI: 10.1109/CCECE47787.2020.9255818
Joseph Gotengco, J. Tran, Jason Soukchamroeun, Diego Felix de Almeida, Michal Aibin
Energy reduction and conservation is gaining interest in our society rapidly in the last decade. In this paper, we design an energy-efficient algorithm for the problem of Routing, Modulation, Core and Spectrum Assignment in Spectrally-Spatially Flexible Optical Networks (SS-FON). We then evaluate our approach using existing, real-life networks in the simulation testbed. Two primary metrics of the evaluation are energy usage, which directly relates to the operational cost of the networks, as well as bandwidth blocking probability, which affects how many customers network operators can serve. Our algorithm achieves similar efficiency for routing as the ones in the literature with the average double reduction of the energy consumption.
在过去的十年里,节能减排正迅速引起社会的关注。本文针对频谱空间柔性光网络(SS-FON)中的路由、调制、核心和频谱分配问题,设计了一种节能算法。然后,我们在模拟测试台上使用现有的、现实生活中的网络来评估我们的方法。评估的两个主要指标是能源使用,这直接关系到网络的运营成本,以及带宽阻塞概率,这影响到网络运营商可以服务的客户数量。我们的算法实现了与文献中相似的路由效率,平均能耗降低了一倍。
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引用次数: 0
Voltage Stability Constrained Low-Carbon Generation & Transmission Expansion Planning 电压稳定约束下的低碳发电和输电扩展规划
Pub Date : 2020-08-30 DOI: 10.1109/CCECE47787.2020.9255798
V. Asgharian, M. Abdelaziz
Environmental concerns and limits on CO2 emissions entail expanding the capacity of renewable generation units. However, the increase in the renewable generation capacity can significantly impact the hosting power system voltage stability. Therefore, the consideration of voltage stability in the expansion planning problem is of an increasing importance. In this paper, we present a multi-stage low carbon voltage stability constrained generation and transmission expansion planning (G&TEP) model. The developed G&TEP model accounts for the investment and operation costs of generation units and transmission lines, as well as the load and wind curtailment costs, and determines the optimal installation year and location for transmission lines and generation units to meet the anticipated load demand increase. The voltage collapse proximity indicator (VCPI), which is a line voltage stability index based technique, is used to account for the voltage stability of the developed expansion plans. To this end, the VCPI is incorporated in the G&TEP model to guarantee an acceptable level of voltage stability for the developed expansion plans over the planning horizon. The effectiveness of the proposed framework is validated using numerical cases studies on the IEEE 24-bus RTS test system developed in General Algebraic Modeling System (GAMS) environment.
环境问题和对二氧化碳排放的限制需要扩大可再生发电装置的容量。然而,可再生能源发电容量的增加会显著影响宿主电力系统的电压稳定性。因此,在扩容规划问题中,电压稳定性的考虑变得越来越重要。本文提出了一种多阶段低碳电压稳定约束发电与输电扩展规划(G&TEP)模型。开发的G&TEP模型考虑了发电机组和输电线路的投资和运行成本,以及负荷和弃风成本,确定了输电线路和发电机组的最佳安装年份和位置,以满足预期的负荷需求增长。电压崩溃接近指示器(VCPI)是一种基于线路电压稳定指标的技术,用于描述所制定的扩容方案的电压稳定性。为此,VCPI被纳入G&TEP模型,以保证在规划范围内开发的扩展计划具有可接受的电压稳定性水平。通过在通用代数建模系统(GAMS)环境下开发的IEEE 24总线RTS测试系统的数值案例研究,验证了该框架的有效性。
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引用次数: 1
Primary Frequency Control in Islanded Microgrids Using a Novel Smart Load 基于新型智能负载的孤岛微电网一次频率控制
Pub Date : 2020-08-30 DOI: 10.1109/CCECE47787.2020.9255760
Javad Khodabakhsh, E. Mohammadi, G. Moschopoulos
Islanded microgrids are an inexpensive way to supply electricity to consumers in remote areas. They consist of synchronous diesel generators, distributed generators (DGs) that use renewable energy resources, energy storage systems (ESSs), and loads. The low inertia of the DGs; however, interfaces increase the complexity of frequency control in islanded microgrids and increases the possibility of system instability. In this paper, a new frequency control framework that is based on using single-stage AC-DC converters as virtual synchronous machine (VSM) smart loads to emulate the behavior of a synchronous machine (SM) is proposed to increase system inertia and reduce frequency oscillations. The AC-DC converter is based on a new topology that has been proposed by the authors. In this paper, the topology and the control system are explained and an IEEE 37 bus test feeder with the smart loads is simulated as an islanded microgrid. It is shown that using the proposed smart load results in frequency fluctuations being damped considerably faster.
孤岛微电网是一种向偏远地区的消费者供电的廉价方式。它们由同步柴油发电机、利用可再生能源的分布式发电机(dg)、储能系统(ess)和负载组成。DGs的惯性小;然而,接口增加了孤岛微电网频率控制的复杂性,增加了系统不稳定的可能性。本文提出了一种新的频率控制框架,该框架基于单级交流-直流转换器作为虚拟同步机(VSM)智能负载来模拟同步机(SM)的行为,以增加系统惯性并减少频率振荡。该AC-DC转换器基于作者提出的一种新的拓扑结构。本文对其拓扑结构和控制系统进行了阐述,并对具有智能负载的ieee37总线测试馈线作为孤岛微电网进行了仿真。结果表明,使用所提出的智能负载可以更快地抑制频率波动。
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引用次数: 2
Toward Versatile CMOS Capacitive Sensors for Cellular Monitoring 用于细胞监测的多功能CMOS电容式传感器
Pub Date : 2020-08-30 DOI: 10.1109/CCECE47787.2020.9255810
H. Tabrizi, S. Magierowski, E. Ghafar-Zadeh
CMOS capacitive sensors have shown to be efficient label-free alternatives for optical methods in life-science applications. Their applicability to cellular monitoring for drug discovery has recently gained attraction. Solutions in the literature are typically customized for and tested by specific types of cells. This paper presents circuits and preliminary results on a versatile CMOS capacitive sensor for cellular monitoring. A new circuit and testbench is demonstrated that enjoys high linearity and achieves more than two times higher dynamic range compared to the state-of-the-art. In addition, adjustable sensitivity allows achieving higher sensitivity than reported in the literature. Results are obtained based on the implementation of the circuits in TSMC 0.18 µm technology.
CMOS电容式传感器已被证明是生命科学应用中光学方法的有效无标签替代品。它们在细胞监测药物发现方面的适用性最近引起了人们的注意。文献中的解决方案通常是针对特定类型的细胞进行定制和测试的。本文介绍了一种用于细胞监测的通用CMOS电容式传感器的电路和初步结果。展示了一种新的电路和试验台,它具有高线性度,动态范围比最先进的电路高两倍以上。此外,可调灵敏度允许获得比文献报道更高的灵敏度。基于TSMC 0.18µm工艺的电路实现得到了结果。
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引用次数: 1
Performance Analysis of Squarely Packed Dimorphic MWCNT Bundle for High Speed VLSI Interconnect 用于高速VLSI互连的直封装二态MWCNT束性能分析
Pub Date : 2020-08-30 DOI: 10.1109/CCECE47787.2020.9255744
Abu Bony Amin, M. S. Ullah
According to the demand of present era, carbon nanotubes are getting closer attention as VLSI high speed interconnects. This consequence drives us to conduct our research on the performance evaluation of different configurations of MWCNT bundle as interconnect based on the propagation delay estimation. Throughout this paper, we are going to propose our own configuration model, named Squarely packed Dimorphic MWCNT, develop mathematical model for different circuit elements i.e. Resistance, Capacitance and Inductance. Finally, we are going to put a decision regarding the configuration with better performance by simulating different configuration and different interconnect material using MATLAB.
根据当今时代的需求,碳纳米管作为超大规模集成电路的高速互连越来越受到人们的关注。这一结果促使我们对基于传播延迟估计的MWCNT束不同配置作为互连的性能评估进行研究。在本文中,我们将提出我们自己的配置模型,即平装二态MWCNT,建立不同电路元件(电阻,电容和电感)的数学模型。最后,我们将使用MATLAB对不同的配置和不同的互连材料进行仿真,以确定性能更好的配置。
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引用次数: 9
Machine Learning-Based Task Clustering for Enhanced Virtual Machine Utilization in Edge Computing 边缘计算中基于机器学习的任务聚类提高虚拟机利用率
Pub Date : 2020-08-30 DOI: 10.1109/CCECE47787.2020.9255811
A. Alnoman
Edge computing provides cloud-like services at the network edge near mobile users. Due to the prosperity of smart applications that involve computing-intensive tasks, edge devices are intended to provide sufficient amounts of resources in order to accommodate the increasing computing demands. However, computing resources could also suffer being underutilized which leads to both resource and energy wastage. In this paper, heterogeneous virtual machine (VM) allocation in edge computing is considered to cope with the different computing demands at each edge device. To this end, an unsupervised machine learning technique, namely, the K-means is used to cluster incoming tasks into three different categories according to their processing requirements. Afterwards, tasks belonging to each cluster will be allocated the appropriate type of VMs to better utilize the computing resources. Results show the effectiveness of the proposed scheme in clustering computing tasks and improving resource utilization in edge devices.
边缘计算在移动用户附近的网络边缘提供类似云的服务。由于涉及计算密集型任务的智能应用程序的繁荣,边缘设备旨在提供足够的资源,以适应不断增长的计算需求。但是,计算资源也可能得不到充分利用,从而导致资源和能源的浪费。本文考虑了边缘计算中的异构虚拟机分配,以应对每个边缘设备的不同计算需求。为此,使用无监督机器学习技术,即K-means,将传入的任务根据其处理要求分为三种不同的类别。然后,为每个集群下的任务分配相应类型的虚拟机,以更好地利用计算资源。结果表明,该方案在集群计算任务和提高边缘设备资源利用率方面是有效的。
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引用次数: 6
Tracking Control of Force, Position, and Contour for an Excavator with Co-simulation 基于联合仿真的挖掘机力、位置和轮廓跟踪控制
Pub Date : 2020-08-30 DOI: 10.1109/CCECE47787.2020.9255683
N. Reginald, Jaho Seo, Abdullah Rasul
This study proposes an effective control strategy for autonomous excavation under complex ground conditions, by integrating position, contour, and force control that are mutually associated factors. For the position control strategy, a non-linear PI controller was devised to control the stroke of each hydraulic cylinder, and therefore the bucket tip's position. To compensate for the ground resistive forces in contact space, an impedance controller was designed. Finally, contour compensation was considered to generate an optimal path of the bucket tip for ground leveling tasks. The performance of developed control algorithms was evaluated in the case of ground leveling task through co-simulation in multi-physics domains. Simulation results show that the designed control scheme provides good results in terms of transient response and tracking accuracy by dealing with all the aspects of force, position, and contour compensation.
本研究提出了一种复杂地基条件下自主开挖的有效控制策略,将位置、轮廓和力的控制三者相互关联。对于位置控制策略,设计了非线性PI控制器来控制每个液压缸的行程,从而控制铲斗尖端的位置。为了补偿接触空间中的地面阻力,设计了一种阻抗控制器。最后,考虑轮廓补偿,生成铲斗尖端的最优路径,用于地面平整任务。通过多物理场联合仿真,对所开发的控制算法在地面调平任务中的性能进行了评价。仿真结果表明,所设计的控制方案处理了力、位置和轮廓补偿的各个方面,在瞬态响应和跟踪精度方面都取得了良好的效果。
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引用次数: 2
期刊
2020 IEEE Canadian Conference on Electrical and Computer Engineering (CCECE)
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