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2019 16th International Conference on Quality in Research (QIR): International Symposium on Electrical and Computer Engineering最新文献

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Impact of Downscaling on Terahertz Antenna-Coupled Bolometers 降尺度对太赫兹天线耦合辐射热计的影响
H. Inokawa, A. Banerjee, D. Elamaran, H. Satoh, N. Hiromoto
Scaling trend in the integrated heater and thermistor for terahertz antenna-couple bolometers is analyzed in terms of responsivity and thermal response speed, i.e. cutoff frequency. Two cases where dimensions of the heater and thermistor are changed with and without correlation are discussed, and experimental results for both cases are shown to verify the expected scaling trends, and the prospect for improving the performance by down scaling is given.
从响应性和热响应速度(即截止频率)两方面分析了太赫兹天线耦合器热辐射计集成加热器和热敏电阻的结皮趋势。讨论了加热器和热敏电阻尺寸有相关性和无相关性变化的两种情况,并给出了两种情况下的实验结果,以验证预期的缩放趋势,并给出了通过减小缩放来提高性能的前景。
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引用次数: 4
Performance Analysis of Data Transmission on WebSocket for Real-time Communication 基于WebSocket的实时通信数据传输性能分析
A. Rahmatulloh, I. Darmawan, R. Gunawan
Real-time communication (RTC) is a telecommunications mode of text, image, audio, a video that allows all users to exchange information instantly or with a small latency value. The availability of RTC services is critical because the number of internet users has continued to increase in recent years. WebSocket is a full-duplex data transmission technology that can support RTC. In general, the implementation of WebSocket apply to web-based applications, but in this study applied to mobile applications. The resulting application is a screen sharing application between server and client, but it is not yet known the performance of RTC transmission data on applications that use WebSocket technology. Screen Sharing is a system designed to share the screen display of presentations between presenters and participants without using a projector. There are two main applications on this system, namely the Screen Sharing Server application and the Screen Sharing Client application. The measurement of the transmitted frame image and the size of the data consumed (bytes per second) between the server and client in the screen sharing process is the main focus of this study. The experimental results showed that after the Screen Sharing Server and Screen Sharing Client application was run for 20 seconds, we can find out that *.JPG is an image file type that has the highest average frame value transmitted at ten frames per second (fps), so you can support RTC. Whereas *.WEBP is an image file type that consumes the smallest data that is 44,970.6 (Kb) when the data transmission process is between the server and client.
实时通信(RTC)是一种文本、图像、音频、视频的通信方式,允许所有用户即时或以很小的延迟值交换信息。提供即时通讯服务至关重要,因为近年来互联网用户的数量不断增加。WebSocket是一种支持RTC的全双工数据传输技术。一般来说,WebSocket的实现适用于基于web的应用程序,但在本研究中应用于移动应用程序。最终的应用程序是服务器和客户端之间的屏幕共享应用程序,但是目前还不知道使用WebSocket技术的应用程序的RTC传输数据的性能。屏幕共享是一种无需使用投影仪就可以在演示者和参与者之间共享演示文稿的屏幕显示的系统。该系统上有两个主要应用程序,即屏幕共享服务器应用程序和屏幕共享客户端应用程序。在屏幕共享过程中,服务器和客户端之间传输的帧图像和消耗的数据大小(每秒字节数)的测量是本研究的主要重点。实验结果表明,在屏幕共享服务器和屏幕共享客户端应用程序运行20秒后,我们可以发现*. jpg是一种以每秒10帧(fps)传输的平均帧值最高的图像文件类型,因此可以支持RTC。而*。WEBP是服务器和客户端之间的数据传输过程中消耗数据最少的图像文件类型,仅为44,970.6 (Kb)。
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引用次数: 5
Room-Temperature Terahertz Antenna-Coupled Microbolometers with Titanium Thermistor and Heater 带钛热敏电阻和加热器的室温太赫兹天线耦合微辐射热计
N. Hiromoto, A. Banerjee, D. Elamaran, M. Aoki, C. Apriono, H. Satoh, E. Bruendermann, E. Rahardjo, H. Inokawa
High-detectivity room-temperature terahertz (THz) detectors are expected to be utilized in spectroscopy and imaging for such applications as inspection for safety, nondestructive sensing in industry and construction, noninvasive examination for medicine and pharmacy. We have studied THz antenna-coupled bolometers with titanium (Ti) thermistor and heater fabricated on a high-resistivity silicon (Si) substrate with MEMS structures in order to develop uncooled high-performance sensors. In this paper, we report the study on design, electromagnetic (EM) and thermal simulation, fabrication, experiment of THz-wave measurement, and evaluation of performance for single-detector devices, by which large THz array detectors are easily developed. We have achieved good performance as low noise-equivalent power (NEP) of the orders of 10−11 W/Hz1/2 and response frequency of 5.5 kHz by studying a Ti thermistor with thin meander line for the THz antenna-coupled bolometer.
高探测率的室温太赫兹(THz)探测器有望用于光谱学和成像,如安全检查、工业和建筑中的无损传感、医学和药学的非侵入性检查等应用。为了开发非制冷高性能传感器,我们研究了在MEMS结构的高电阻硅(Si)衬底上制造钛(Ti)热敏电阻和加热器的太赫兹天线耦合热辐射计。本文报道了单探测器器件的设计、电磁和热模拟、制造、太赫兹测量实验和性能评估等方面的研究,为开发大型太赫兹阵列探测器提供了便利。通过对太赫兹天线耦合辐射热计的细弯曲线Ti热敏电阻的研究,我们获得了低噪声等效功率(NEP)为10−11 W/Hz1/2,响应频率为5.5 kHz的良好性能。
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引用次数: 3
Validation of 3D Models using Template Matching for Implant Planning 模板匹配用于种植体规划的3D模型验证
T. Asmaria, D. Annur, M. S. Utomo, A. K. Sari, D. P. Malau, Yogi Prabowo, A. Rahyussalim, M. I. Amal
The purpose of this paper it to authenticate the sequence of three-dimensional (3D) printing works, specifically the 3D modeling process, in the consideration of implant planning. In implant planning, the accuracy of dimension and degree of the 3D printed model are critical, since it takes effect on the success of implant installation. A computerized tomography (CT) pelvis area has been segmented to obtain the region of interest, iliac organ, with several procedures. The outcome from segmentation is converted from the format of digital imaging and communications in medicine (DICOM) version to the ready to print format of stereolithography (STL). The DICOM data and the STL data were then captured in the same dimension and position. The key process of this research was conducting an algorithm of template matching to verify quantitatively that the original CT data of iliac organ is accurately identic with its 3D models. This paper establishes a cutting-edge analysis that answer the percentage of similarity between the original data with the 3D model of 94,46%. The result provides a recommendation to continue the 3D model to be imprinted and it contributes to the high exactitude of anatomical printed models
本文的目的是为了验证三维(3D)打印作品的顺序,特别是3D建模过程,在考虑种植体规划的情况下。在种植体规划中,3D打印模型的尺寸和度的准确性至关重要,因为它影响种植体安装的成功。计算机断层扫描(CT)骨盆区域已被分割,以获得感兴趣的区域,髂器官,几个程序。分割的结果从医学数字成像和通信(DICOM)版本的格式转换为准备打印的立体光刻(STL)格式。然后在相同的维度和位置捕获DICOM数据和STL数据。本研究的关键过程是进行模板匹配算法,定量验证髂脏器CT原始数据与三维模型准确吻合。本文建立了一个前沿分析,回答了原始数据与三维模型的相似度百分比为94,46%。该结果为三维模型的继续印模提供了建议,有助于提高解剖打印模型的精度
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引用次数: 2
A Compact Right Hand Circular Polarization Microstrip Antenna using Inverted-L Shaped Feedline for GPS Receiver 一种用于GPS接收机的反l型馈线右手圆极化微带天线
Dian Rusdiyanto, F. Zulkifli
In this paper, a compact right-hand circular polarized microstrip antenna for GPS receiver is presented. This antenna has an inverted-L shaped in feedline, which is used to obtain circular polarization. The dimension of the antenna is 40 mm x 40 mm using FR4 as a substrate, with 4.4 of the dielectric constant and 1.6 mm of height. The simulation result shows that at operating frequency 1575.42 MHz has −18.9 dB of return loss and 2.04 dB of gain. Furthermore, impedance bandwidth and circular polarization bandwidth (CPBW) simulation are 102 MHz and 27 MHz respectively. The measurement result obtained 58.1 MHz of the impedance bandwidth at the frequency range from 1524.7 MHz - 1582.8 MHz and the value of gain at 1575.42 MHz is 1.24 dB.
本文设计了一种用于GPS接收机的紧凑型右圆极化微带天线。该天线馈线呈倒l形,用于圆极化。天线尺寸为40mm × 40mm,采用FR4作为衬底,介电常数为4.4,高度为1.6 mm。仿真结果表明,在1575.42 MHz工作频率下,回波损耗为−18.9 dB,增益为2.04 dB。阻抗带宽和圆极化带宽(CPBW)仿真分别为102 MHz和27 MHz。测量结果表明,在1524.7 MHz - 1582.8 MHz的频率范围内阻抗带宽为58.1 MHz, 1575.42 MHz的增益值为1.24 dB。
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引用次数: 0
Semi Active Control of Solar Tracker Using Variable Position of Added Mass Control 利用变位置附加质量控制的太阳能跟踪器半主动控制
A. B. Pulungan, L. Son, Syamsul Huda, Syafii, Ubaidillah
This paper offers a new method to control solar panel orientation. The technique is applied by varying the position and ratio of the added mass to the total mass of solar panel, m/mp (%). The added mass position is varied from the axis point up to the end point of the solar panel. The solar panel orientation is influenced by the moving mass position. The oscillation in solar panel caused by the moving mass is eliminated by adjusting the equivalent damping torque cτ, and the solar panel maximum orientation is varied by changing the equivalent torsion spring kτ. The simulation results proved that the solar panel orientation changed from 00 to 60,630 for parameter values m/mp = 15%, r/0,5rt = 35%, cτ = 3 Nm/rad/sec and kτ = 1 Nm/rad. The ability of the system to control the orientation and ratio of m/mp dan r/0,5rt is effective to reduce energy consumption of the solar panel orientation controlling system.
本文提出了一种控制太阳能电池板方向的新方法。该技术通过改变位置和增加的质量与太阳能电池板总质量的比率(m/mp(%))来应用。增加的质量位置从轴点到太阳能电池板的端点变化。太阳能电池板的方向受运动质量位置的影响。通过调节等效阻尼转矩cτ可以消除由运动质量引起的太阳能板振动,通过改变等效扭转弹簧kτ可以改变太阳能板的最大取向。仿真结果表明,当m/mp = 15%, r/0,5rt = 35%, cτ = 3 Nm/rad/sec, kτ = 1 Nm/rad时,太阳能电池板的朝向从00变化到60,630。该系统能够控制m/mp和r/0,5rt的方向和比值,有效地降低了太阳能电池板方向控制系统的能耗。
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引用次数: 0
Effects of Substrate Curvature in Performances of Conformal Microstrip Arrays 衬底曲率对共形微带阵列性能的影响
Bastul Wajhi Akramunnas, M. Alaydrus
Unmanned aerial vehicles (UAVs) support many applications, such as monitoring, surveillance, etc. A stable communication with UAVs or between UAVs depends on the reliability of the receiving and transmitting systems including the antennas. In this work, we observed microstrip arrays, which conform to the surface of a circular cylinder. The variation of the curvature radius shows, that the reflection factor of the conformal antenna is practically unchanged; however, the gain decreases with decreasing the curvature radius. We compared some analytical results, simulation with software and measurements.
无人驾驶飞行器(uav)支持许多应用,如监控、监视等。与无人机或无人机之间的稳定通信取决于包括天线在内的接收和发射系统的可靠性。在这项工作中,我们观察到微带阵列,它符合一个圆柱体的表面。曲率半径的变化表明,共形天线的反射系数基本不变;但增益随曲率半径的减小而减小。对一些分析结果、软件仿真结果和实测结果进行了比较。
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引用次数: 1
Performance Evaluation of Query Response Time in The Document Stored NoSQL Database 文档存储NoSQL数据库查询响应时间的性能评价
R. Gunawan, A. Rahmatulloh, I. Darmawan
NoSQL Database is one solution that can be used to store large amounts of data and have an excellent performance during the reading and writing process. Analysis of data with large volumes increasingly feels the benefits. Database exploration is one of the activities carried out in data analysis. Information on estimated response time queries can help in planning database exploration. This study aims to evaluate the response time of each query for the process of creating, read, update, delete (CRUD) on a document stored, NoSQL Database. MongoDB, ArangoDB, and CouchDB were selected for use in experiments. Experiments are carried out by processing queries for repeated create, read, update, and delete commands with different quantities. The experimental results in the study revealed that MongoDB had the lowest average query response time for the read process (0.017 seconds), update (25,358 seconds) and delete (0.055 seconds) compared to ArangoDB and CouchDB. However, for the creation process, the ArangoDB response time is the smallest, which is 28,493 seconds compared to MongoDB and CouchDB.
NoSQL数据库是一种可以用于存储大量数据并且在读写过程中具有优异性能的解决方案。对大量数据进行分析的好处越来越明显。数据库探索是数据分析中的一项活动。有关估计响应时间查询的信息可以帮助规划数据库探索。本研究旨在评估对存储在NoSQL数据库中的文档进行创建、读取、更新、删除(CRUD)过程的每个查询的响应时间。实验中选择MongoDB、ArangoDB和CouchDB。实验通过处理不同数量的重复创建、读取、更新和删除命令的查询来进行。本研究的实验结果表明,与ArangoDB和CouchDB相比,MongoDB在读取过程(0.017秒)、更新过程(25358秒)和删除过程(0.055秒)上的平均查询响应时间最低。但是,在创建过程中,与MongoDB和CouchDB相比,ArangoDB的响应时间最小,为28,493秒。
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引用次数: 14
Enhancement Bandwidth of Parasitic Microstrip Antenna Using Multiple Feed Line 多馈线增强寄生微带天线带宽
S. Alam, L. Sari, I. Surjati, Y. K. Ningsih, Aida Safitri, Elfi Syukriati
This paper proposes design of parasitic microstrip antenna with multiple feed line for mobile communication applications at working frequency of 1800 MHz. The purpose of adding multiple feed line is to enhanced the bandwidth of the proposed antenna. The multiple feed line used has an impedance of 100 Ohm and is placed on the edge of the patch parasitic microstrip antenna. The optimal bandwidth of the microstrip antenna is obtained by adjusting the dimensions and position of the multiple feed line. From the simulation results obtained return loss of −15.95 dB, VSWR of 1.379 at work of frequency 1800 MHz and bandwidth of 328 MHz with a frequency range 1735 – 2053 MHz or increased 262.13% compared to parasitic microstrip antenna. From the results obtained it can be concluded that the use of multiple feed line succeeded in increasing the performance and bandwidth of the microstrip antenna.
提出了一种工作频率为1800mhz的多馈线寄生微带天线的设计方案。增加多路馈线的目的是为了增强天线的带宽。所使用的多重馈线阻抗为100欧姆,并放置在贴片寄生微带天线的边缘。通过调整多馈线的尺寸和位置来获得微带天线的最佳带宽。仿真结果表明,在工作频率为1800 MHz、带宽为328 MHz时,回波损耗为−15.95 dB,驻波比为1.379,频率范围为1735 ~ 2053 MHz,比寄生微带天线提高262.13%。结果表明,采用多路馈线可以有效地提高微带天线的性能和带宽。
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引用次数: 4
Security System Design on Feature Information of Biometric Fingeprint using Kronecker Product Operation and Elementary Row Operation 基于Kronecker积运算和初等行运算的生物指纹特征信息安全系统设计
R. Mukhaiyar, Syawaludin
Distinguishing fingerprint feature, like minutia, from its originality could protect the restricted information adhered with the fingerprint from being recognized by outsiders. Displacing the minutiae from its place methodically transforms the fingerprint appearance into a camouflage look. This condition will deceive impostor from obtaining a correct fingerprint data. Implementing some matrix procedures into fingerprint matrix form would change each value contained in the fingerprint. This paper proposes a matrix operation called Kronecker Product Operation (KPO) to manipulate the value of each pixel of the fingerprint feature. KPO agitates each pixel by expanding its value into ixj orde of each pixel. This elaboration transforms the original form of the fingerprint feature image into mxn time of its originality form. For instance, an original 3×3 image would alter into 6×12, 9×21, 15×3, or 24×18 image form depended on KP form used. These form will secure the basic feature information of the fingerprint. Moreover, the protection system is also provided by twirling the row element of the fingerprint pixel by implementing a matrix operation called as elementary row operation (ERO). This procedure works in pixel procedure with some requirements i.e. exchanging rows, multiplying, and zeroing a selected pixel row. These requirements are implemented to distinguish the original feature information of the fingerprint so that any imposter could steal it. The result of this system is a robust fingerprint protection system that guarantees any fingerprint database users to have a secure fingerprint feature.
将指纹特征(如细节)与其原创性区分开来,可以保护指纹所粘附的限制性信息不被外界识别。从它的位置有条不紊地取代细枝末节转变成一个伪装的指纹外观。这种情况会欺骗冒名顶替者获取正确的指纹数据。将一些矩阵程序实现为指纹矩阵形式会改变指纹中包含的每个值。本文提出了一种称为Kronecker积运算(KPO)的矩阵运算来处理指纹特征的每个像素的值。KPO通过将其值扩展到每个像素的ixj阶来搅动每个像素。这种阐述将指纹特征图像的原始形态转化为其原始形态的mxn倍。例如,原始的3×3图像可以根据所使用的KP格式转换为6×12、9×21、15×3或24×18图像格式。这些表单将保护指纹的基本特征信息。此外,还通过实现称为初等行操作(ERO)的矩阵操作旋转指纹像素的行元素来提供保护系统。这个过程在像素过程中工作,有一些要求,如交换行,乘法和对选定的像素行进行归零。实现这些要求是为了区分指纹的原始特征信息,以防止任何冒名顶替者窃取指纹。该系统是一个鲁棒的指纹保护系统,保证任何指纹数据库用户都具有安全的指纹特征。
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引用次数: 3
期刊
2019 16th International Conference on Quality in Research (QIR): International Symposium on Electrical and Computer Engineering
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