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2020 IEEE Student Conference on Research and Development (SCOReD)最新文献

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Deposition of AlN Thin Film by High-Power Impulse Magnetron Sputtering with Tilted Sputter Target at Different Working Pressure 不同工作压力下倾斜溅射靶大功率脉冲磁控溅射沉积AlN薄膜
Pub Date : 2020-09-27 DOI: 10.1109/SCOReD50371.2020.9250976
Z. Azman, N. Nayan, A. Bakar, Zamri Yusop, M. H. Mamat, Muliana Tahan, N. Sahari, M. Y. Ahmad
The deposition of A1N thin film was conducted in three different working pressures of 3, 5 and 10 mTorr by HiPIMS method with tilted sputter target. XRD pattern shows nearly single crystalline of a-axis A1N thin films were produced. A1N thin film growth rate increase with the decrease of working pressure as agreed by FESEM cross-sectional images. The thickness of A1N thin film observed at 267 nm, 221nm, and 183 nm for 3 mTorr, 5 mTorr and 10 mTorr, respectively. The degree of crystallinity was observed higher at lower working pressure at 64.3% and reduced to 52.02% at 10 mTorr. However, the micro strain and dislocation density were observed improved over the increase of working pressure referring to single-crystalline a-axis A1N dominant peak.
采用倾斜溅射靶的HiPIMS方法,在3、5和10 mTorr三种不同的工作压力下沉积A1N薄膜。XRD谱图显示制备的a轴A1N薄膜接近单晶。FESEM横截面图像显示,A1N薄膜的生长速率随工作压力的减小而增大。在3 mTorr、5 mTorr和10 mTorr下,A1N薄膜的厚度分别为267 nm、221nm和183 nm。在较低的工作压力下,结晶度较高,为64.3%,在10 mTorr下,结晶度降至52.02%。然而,随着工作压力的增加,单晶a轴A1N主导峰的微应变和位错密度有所提高。
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引用次数: 1
Towards IoT-based Notification System for Agriculture Electric Fence 基于物联网的农业电围栏通报系统研究
Pub Date : 2020-09-27 DOI: 10.1109/SCOReD50371.2020.9250958
Aminatul Saadiah Jumaat Ali, Latifah Abdullah, Maisarah Musa, M. Yunos, Ng Wee Wei Ki, Z. Tukiran, R. Hamdan, Mohd Hafiz Abd.Jalil Zainuddin
In agriculture, electric fence is used as one of the methods to protect the food crops, especially from wild animals. Wild animals such as monkeys and elephants will cause immense damage and losses of food crops of farmers if the fence is malfunction. Therefore, this paper proposed the IoT-based electric fence notification system that allows farmers to observe the status of the fence from their phone. In this work, the use of ACS 712 sensor is introduced to measure the current flows on the fence whilst a continuous current supply is assured by detecting the level of the battery via sensor. Blynk application is suggested in this work as a platform to notify the farmers via their phone. The initial findings show that the proposed system capable of notifying the farmer when there is no current supply to the fence. Nonetheless, this system allows the farmer to monitor the battery status remotely, which promote hassle-free farm supervision.
在农业中,电围栏被用作保护粮食作物,特别是野生动物的方法之一。如果栅栏出现故障,猴子和大象等野生动物会对农民的粮食作物造成巨大的破坏和损失。因此,本文提出了基于物联网的电动围栏通知系统,让农民可以通过手机观察围栏的状态。在这项工作中,使用ACS 712传感器来测量围栏上的电流流动,同时通过传感器检测电池的液位来确保持续的电流供应。本工作建议使用Blynk应用程序作为通过手机通知农民的平台。初步研究结果表明,拟议的系统能够在篱笆没有当前供应时通知农民。尽管如此,该系统允许农民远程监控电池状态,从而促进无麻烦的农场监管。
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引用次数: 5
Relative Humidity Sensor based on Tapered Plastic Optical Fibre with Full-and Spiral-Patterned Agarose Gel Coating 基于全图案和螺旋图案琼脂糖凝胶涂层锥形塑料光纤的相对湿度传感器
Pub Date : 2020-09-27 DOI: 10.1109/SCOReD50371.2020.9250987
F. Roslan, N. Saidin, S. Harun, A. A. Ralib
A relative humidity sensor based on plastic optical fibre (POF) is constructed by using chemical etching method. Agarose gel was chosen as the sensing layer with two different patterns which are fully coated pattern and spirally coated pattern. The agarose gel acts as a moisture absorbent due to its hydrophilic property. Full and spirally agarose coated fibre synthesis will be compared in terms of their sensitivity and limit of detection. The measured result shows that the spirally agarose-coated fibre has better sensitivity compared to the fully agarose-coated fibre. The increment in relative humidity percentage affected the refractive index of the cladding and contributed to higher leakage of transmitted light. As the relative humidity percentage (RH%) of magnesium chloride (MgCl2) inside the chamber varies from 50 RH% to 85 RH%, the output voltage of the spiral patterned fibre decreases linearly from 9.1 mV to 8.4 mV. It demonstrates the better linearity slope of over 80.95% and highest sensitivity of 0.0162 mV/% compared to the full patterned fibre. Hence, humidity sensor based on spirally agarose-coated POF demonstrates a high-resistant and reliable sensitivity towards the relative humidity of the ambient.
采用化学腐蚀法制备了一种基于塑料光纤的相对湿度传感器。选择琼脂糖凝胶作为传感层,其具有完全包被和螺旋包被两种不同的模式。琼脂糖凝胶由于其亲水性而起吸湿剂的作用。完整和螺旋琼脂糖包覆纤维合成将比较其灵敏度和检出限。测量结果表明,螺旋型琼脂糖包覆纤维比全型琼脂糖包覆纤维具有更好的灵敏度。相对湿度百分比的增加会影响包层的折射率,导致透射光的泄漏增大。当腔内氯化镁(MgCl2)的相对湿度百分比(RH%)从50 RH%变化到85 RH%时,螺旋图案光纤的输出电压从9.1 mV线性降低到8.4 mV。与全花纹纤维相比,其线性斜率可达80.95%以上,灵敏度最高可达0.0162 mV/%。因此,基于螺旋琼脂糖涂层POF的湿度传感器对环境的相对湿度具有高耐受性和可靠的灵敏度。
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引用次数: 0
Compact self-Isolated MIMO antenna system with low mutual coupling for 5G mobile applications 5G移动应用低互耦的紧凑型自隔离MIMO天线系统
Pub Date : 2020-09-27 DOI: 10.1109/SCOReD50371.2020.9250998
Fayad Ghawbar, A. Jumadi, H. Majid, F. A. Saparudin, A. S. Ghafar, B. A. F. Esmail
In this paper, a compact self-isolated 4-antenna multiple-input-multiple-output (MIMO) is proposed for the fifth-generation (5G) mobile applications. The proposed design is composed of inverted U-shaped, feeding element T-shaped, two circular-ring radiators and two stubs aligned together in a specified location based on the distance of L2 and H2. The compact size reduction introduced in this design is due to the alignment of the circular-rings with the vertical stubs and the microstrip line feeding. The proposed compact size of the selfisolated 4-antenna MIMO system offers very good isolation without using any decoupling techniques, indicated by the transmission coefficients which reach above -30 dB for S12, S32, S34 and S23 for λ/4 and reaches above -20 dB for λ/14. Besides, the result values for reflection coefficients display significant performance reaches above -50 dB for λ/4 and -38 dB for λ/14 which indicates the good performance of the compact MIMO antennas, despite varying the distance and despite its arrangement on a high loss FR-4 dielectric substrate. The MIMO antenna offers significant features to be used in 5G mobile applications
本文提出了一种适用于第五代(5G)移动应用的紧凑型自隔离4天线多输入多输出(MIMO)。所提出的设计由倒u型、进料元件t型、两个圆环散热器和两个桩根据L2和H2的距离在指定位置对齐组成。该设计中引入的紧凑尺寸减小是由于环形与垂直桩和微带馈线的对齐。所提出的自隔离4天线MIMO系统的紧凑尺寸提供了非常好的隔离,而无需使用任何去耦技术,表明S12, S32, S34和S23在λ/4下的传输系数达到-30 dB以上,λ/14的传输系数达到-20 dB以上。此外,λ/4和λ/14的反射系数结果值均达到-50 dB以上和-38 dB以上,表明紧凑型MIMO天线在不同距离和高损耗FR-4介质衬底上均具有良好的性能。MIMO天线为5G移动应用提供了重要功能
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引用次数: 0
Breast Cancer Histological Images Nuclei Segmentation using Mask Regional Convolutional Neural Network 基于掩模区域卷积神经网络的乳腺癌组织图像核分割
Pub Date : 2020-09-27 DOI: 10.1109/SCOReD50371.2020.9383186
F. Khan, M. N. Mohd, Muhammad Danial Khan, Susama Bagchi
the breast cancer cases have increased globally, in the last two decades. Analysis of histological images acquired through biopsy of the breast tissues is thought to be the most reliable way to assess if any cells show signs of malignancy. With the advent of deep neural networks, we are now able to diagnose the disease with near perfect accuracy instead of conventional techniques of mammography for breast cancer detection; however, work done in this area considers nuclei segmentation. This work is focussed on extending the applicability of deep learning technology where network is trained to perform segmentation and classify data as one of the four classes: normal, benign, in-situ and invasive. The classification accuracy achieved is 98.16% and the segmentation accuracy calculated using overlap coefficient from mean intersection over union is 86.39% on the ICIAR2018 Breast Cancer dataset.
在过去的二十年中,乳腺癌病例在全球范围内有所增加。通过乳腺组织活检获得的组织学图像分析被认为是评估任何细胞是否有恶性肿瘤迹象的最可靠方法。随着深度神经网络的出现,我们现在能够以近乎完美的准确度诊断疾病,而不是传统的乳房x光摄影技术来检测乳腺癌;然而,在这方面所做的工作考虑了细胞核分割。这项工作的重点是扩展深度学习技术的适用性,在深度学习技术中,网络被训练来执行分割并将数据分类为四类之一:正常、良性、原位和侵入性。在ICIAR2018乳腺癌数据集上,实现的分类准确率为98.16%,使用平均交集超过联合的重叠系数计算的分割准确率为86.39%。
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引用次数: 5
Development of 7 DOF Robotic Arm with Electronic Bluetooth Stethoscope for COVID Patient Medical Assesment 用于新冠肺炎患者医疗评估的7自由度电子蓝牙听诊器机械臂的研制
Pub Date : 2020-09-27 DOI: 10.1109/SCOReD50371.2020.9250965
Abu Ubaidah bin Shamsudin, Chia Kim Seng, H. A. Rahman, D. Hanafi, Hazwaj Mhd Poad
The study proposed the simulation of the inverse kinematics (IK) controller for the 7 DOF robotic arm custom designed to measure the lung condition of contiguous patients. For this purpose, an electronic stethoscope will be attached to the end-effector of the robot arm. Currently, no robot has been developed for this purpose. In this research, the robot arm hardware was custom designed using the modular design of the motor and the Rapid Prototyping Solidwork to develop an appropriate robot arm. Next, the Robot Operating System (ROS) simulation was performed to evaluate the accuracy and execution of the inverse kinematic controller for the robot arm. The result shows that the IK controller has an accuracy of 0.005 mm and that the execution time was fast within 200 milliseconds.
本研究提出了针对连续患者肺部状况测量定制的7自由度机械臂的逆运动学(IK)控制器仿真。为此,一个电子听诊器将被安装在机器人手臂的末端执行器上。目前,还没有为此目的开发出机器人。在本研究中,采用电机模块化设计和快速成型Solidwork对机械臂硬件进行定制设计,以开发出合适的机械臂。其次,进行了机器人操作系统(ROS)仿真,以评估机械臂逆运动学控制器的精度和执行力。结果表明,IK控制器的精度为0.005 mm,执行时间在200毫秒以内。
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引用次数: 2
Implementation of Electromagnetic Band-Gap Structure in Antenna Applications: An Overview 电磁带隙结构在天线应用中的实现:综述
Pub Date : 2020-09-27 DOI: 10.1109/SCOReD50371.2020.9251002
Mohd Yassin Ibrahim, Adel Y. I. Ashyap, Z. Abidin, S. Dahlan
Electromagnetic band gap (EBG) structures structure has become a major revolution in radio frequency (RF) and microwave applications due to its unique characteristics of in-phase and band gap in certain frequency ranges. This paper provides a comprehensive review of the implementation of EBG in several antenna applications. It shows that EBG has multiple advantages in antenna design, such as suppressing surface waves, reducing mutual coupling, creating band notch, controlling radiation patterns, improving RFID transmission, enhancing gain and bandwidth, and act as isolation between the antenna and body. It is hoped that this review will lead to more efforts to develop more compact, broadband and efficient EBG structures to improve the performance of antennas and other microwave devices.
电磁带隙结构由于其在一定频率范围内的同相和带隙特性,已成为射频和微波应用领域的重大变革。本文提供了在几种天线应用中实现EBG的全面综述。结果表明,EBG在天线设计中具有抑制表面波、减少相互耦合、产生带陷波、控制辐射方向图、改善RFID传输、提高增益和带宽以及在天线和本体之间起到隔离作用等多种优势。希望这一综述将引导更多的努力,以开发更紧凑,宽带和高效的EBG结构,以提高天线和其他微波设备的性能。
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引用次数: 2
A Simulation Study of Performances for Different Substrates Sizes and Copper Thickness For PD Antenna Design PD天线设计中不同衬底尺寸和铜厚度的仿真研究
Pub Date : 2020-09-27 DOI: 10.1109/SCOReD50371.2020.9250980
Z. Bohari, M. Isa, P. Soh, A. Z. Abdullah, A. Ab Rahman, M. Nasir
Partial discharge (PD) is a phenomenon that consistently happens throughout the millennium in the power equipment. This phenomenon has an unpredictable and intermittent characteristic that hard to be detected easily. There are various available methods to detect this phenomenon, but each technique has its own flaws and drawback. This paper explored the early step to select, design, and simulate a PD UHF antenna for power transformer through CST MWS simulation. This task is crucial to choose the optimized substrate size and copper thickness for the PD antenna design. Based on the detailed analysis, it is substantially proven that there is an important relationship between substrate size towards antenna performance and characteristics to design an improved and efficient PD antenna.
局部放电(PD)是电力设备千百年来不断发生的现象。这种现象具有不可预测和间歇性的特点,不易被发现。有各种可用的方法来检测这种现象,但每种技术都有自己的缺陷和缺点。本文通过CST MWS仿真,探讨了电力变压器PD超高频天线的选型、设计和仿真的前期工作。这项工作对PD天线设计中衬底尺寸和铜厚度的选择至关重要。在详细分析的基础上,充分证明了衬底尺寸对天线性能和特性的重要关系,从而设计出改进的高效PD天线。
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引用次数: 0
Prediction of Rooftop Photovoltaic Power Generation Using Artificial Neural Network 基于人工神经网络的屋顶光伏发电预测
Pub Date : 2020-09-27 DOI: 10.1109/SCOReD50371.2020.9250952
Yun Nee Wee, A. Nor
Photovoltaic (PV) system is known as one of the most popular renewable energy types in generating electricity power. However, one of the drawbacks of PV system is that the performance of PV panel output is incompatible and affected due to changing climate condition. Hence, it is important to predict the optimal power output of PV system. This study will cover the implementation of PV system at the rooftop of Faculty of Electrical and Electronic Engineering, Universiti Tun Hussein Onn Malaysia. Then, the optimal PV output power on the rooftop will be predicted using calculation method and Artificial Neural Network (ANN). The results have shown that ANN has the ability to predict the PV output close to the calculation method.
光伏(PV)系统被认为是最受欢迎的可再生能源发电类型之一。然而,光伏系统的缺点之一是光伏板输出性能不兼容,且受气候条件变化的影响。因此,对光伏发电系统的最优输出功率进行预测是十分重要的。本研究将涵盖在马来西亚敦胡赛因大学电气与电子工程学院屋顶的光伏系统的实施。然后,屋顶上的最佳光伏输出功率将预测使用的计算方法和人工神经网络(ANN)。结果表明,人工神经网络具有接近计算方法的PV输出预测能力。
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引用次数: 1
Smart Home Security with Dual Modes 智能家居安全与双模式
Pub Date : 2020-09-27 DOI: 10.1109/SCOReD50371.2020.9383185
Muhammad Rusyahmi Danial Razali, N. A. Abdul-Kadir, Johari Kasim
The internet of Things (IoT) is a technology that has shown impact to revolutionize individual live. In the Integration Era in year 2005-2018, the researcher and experts have started to combine the security system with the IoT technology. One of the main reasons is, the IoT being used as the source of data storage. Same as Closed-Circuit Television (CCTV), as one of the main component in security system; the data storage is being upgraded from a digital video recorder (DVR) which is a kind of memory card to an endless network video recorder (NVR), which is internet cloud data storage. The NVR camera system is widely known as Internet Protocol Camera (IP Camera). This project is mainly focusing on the security system which could be implemented by community, either in-house or workplace, as the system has dual modes of operation (security mode and calibration mode). The improvement in term of notification, user friendly system is further discussed in this paper. From the notification, the users shall be aware with the location of the burglar. This study shall provide the development of new Smart Home Security, focusing on CCTV system technology.
物联网(IoT)是一项显示出改变个人生活影响的技术。在2005-2018年的集成时代,研究人员和专家开始将安防系统与物联网技术相结合。其中一个主要原因是,物联网被用作数据存储的来源。与闭路电视(CCTV)一样,作为安防系统的主要组成部分之一;数据存储正在从一种存储卡的数字录像机(DVR)升级到无限网络录像机(NVR),即互联网云数据存储。NVR摄像机系统通常被称为IP摄像机(Internet Protocol camera)。本项目主要关注的是安全系统,该系统具有双重运行模式(安全模式和校准模式),可以由社区实施,既可以在室内实施,也可以在工作场所实施。本文从通知、用户友好等方面对系统进行了进一步的改进。从通知中,用户可以知道窃贼的位置。本研究将提供新的智能家庭安全的发展,重点是CCTV系统技术。
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引用次数: 1
期刊
2020 IEEE Student Conference on Research and Development (SCOReD)
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