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2018 5th International Conference on Electrical Engineering, Computer Science and Informatics (EECSI)最新文献

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Implementation of Obfuscation Technique on PHP Source Code 混淆技术在PHP源代码上的实现
M. Maskur, Zamah Sari, Ahmad Sirojul Miftakh
Source code on web based applications can be altered easily. This occurred because the source code is not compiled into an executable file. Hence, it can be read and copied easily, or be changed without permission from the author. Obfuscation is a technique that commonly used to secure the source code in any websites based application. Obfuscation is a technique to randomize the source code that make the code harder to read but still runnable, but this make the running time increased and the application will run slower then it supposed to. This increased time caused by reverse obfuscation proses to bring back the source code into originally form before interpreted by web server. This studi intended to create an obfuscation technique that keeping the application run time performance as not obfuscated called Wanna Crypt. The methods to create this applications are (1) system design using UML, (2) implementation of the system, which is done by coding or writing scripts using PHP, HTML, JavaScript, CSS to build Wanna Crypt based website, (3) Blackbox and Whitebox testing to compare the execution time. From the tests, it can be concluded that web applications using Wanna Crypt provide a longer response time than web applications without using obfuscation.
基于web的应用程序的源代码可以很容易地修改。发生这种情况是因为源代码没有编译成可执行文件。因此,它可以很容易地阅读和复制,或者在未经作者许可的情况下进行更改。混淆是一种通常用于保护任何基于网站的应用程序中的源代码的技术。混淆是一种随机化源代码的技术,它使代码更难阅读,但仍然可运行,但这会增加运行时间,应用程序将比预期运行得更慢。这增加了在web服务器解释之前将源代码恢复为原始形式的反向混淆过程所导致的时间。本研究旨在创建一种混淆技术,以保持应用程序运行时性能不被混淆,称为Wanna Crypt。创建该应用程序的方法是:(1)使用UML进行系统设计;(2)系统实现,通过使用PHP, HTML, JavaScript, CSS编码或编写脚本来构建基于Wanna Crypt的网站;(3)黑盒和白盒测试来比较执行时间。从测试中可以得出结论,使用Wanna Crypt的web应用程序比不使用混淆的web应用程序提供更长的响应时间。
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引用次数: 4
Smart Frequency Control using Coordinated RFB and TCPS based on Firefly Algorithm 基于萤火虫算法的协调RFB和tcp智能频率控制
D. Lastomo, Arif Musthofa, H. Setiadi, E. S. Koenhardono, Muhammad Ruswandi Djalal
The frequency stability enhancement of a power system is proposed in this paper. To enhance the frequency stability, redox flow batteries (RFB) and the thyristor controlled phase shifter are used. Moreover, to get a better performance, the parameter of RFB and TCSC are optimized by the firefly algorithm (FA). Two area load frequency control plant is used as a test system. Time domain simulation is used to assess the performance of the proposed method (adding RFB and TCPS and optimized using FA). From the simulation results, it is found that by installing RFB and TCSC based on FA in the system, the frequency performance can be maintained above the nadir when perturbation emerges.
本文提出了提高电力系统频率稳定性的方法。为了提高频率稳定性,采用了氧化还原液流电池(RFB)和晶闸管控制移相器。此外,为了获得更好的性能,采用萤火虫算法对RFB和TCSC的参数进行了优化。采用两区负荷变频调速装置作为试验系统。通过时域仿真来评估所提出方法的性能(加入RFB和TCPS并使用FA进行优化)。仿真结果表明,在系统中安装基于FA的RFB和TCSC,可以在扰动出现时将频率性能保持在最低点以上。
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引用次数: 2
Quantitative Strategic Planning Matrix Analysis On The Implementation Of Second Screen Technology 二次屏技术实施的定量战略规划矩阵分析
J. Suroso, H. A. Fatchan
A massive technological development requires the company to make strategic changes to compete to survive. In order for companies to survive we need a competitive business advantage to increase Performance Excellence. Similarly, for the PT. Visi Media Asia with its business unit in the field of television, tvOne. In determining and implementing a strategy to compete need to do some analysis. The analytical tool that used in this thesis is IE matrix, SWOT, and QSPM analysis. The internal factor analysis produce the main strength of this company is the company products are loved by people with a score of 0,61. While the company has a major weakness, namely the distribution of technology products is left behind with a score of 0,63. The Merger of internal factors on the company generated an average score of 2,90. External factor analysis (EFAS) generate major opportunities that can be utilized by the company is the development of technology of rapid product distribution with a score of 0,72. While the company’s main threat gained from research that people are beginning to switch to digital media than conventional television viewing with a score of 0,63. Merging these two external factors in PT. Visi Media Asia result the average score of 3,12. Based on the SWOT matrix, produced five strategies that can be done by PT. Visi Media Asia on the TV business, tvOne. QSPM processing results is produce the most interesting strategies to be used as a competitive strategy by companies that make technological breakthroughs that can bridging between digital and analog media with TAS value of 7,07.
大规模的技术发展要求公司进行战略变革以竞争生存。为了让公司生存,我们需要一个有竞争力的商业优势来提高卓越绩效。同样,对于PT. Visi Media Asia及其在电视领域的业务部门tvOne。在确定和实施竞争战略时需要做一些分析。本文使用的分析工具是IE矩阵、SWOT分析和QSPM分析。内部因素分析得出该公司的主要优势是公司产品受到人们的喜爱,得分为0.61分。虽然该公司有一个主要的弱点,即技术产品的分销被甩在后面,得分为0.63。公司内部因素合并后的平均得分为2990分。外部因素分析(EFAS)产生的主要机会,可以利用的公司是快速产品分销技术的发展,得分为0.72。该公司的主要威胁来自一项研究,即人们开始转向数字媒体,而不是传统的电视观看,得分为0.63。在PT. Visi Media Asia中合并这两个外部因素,平均得分为3.12分。在SWOT矩阵的基础上,提出了PT. Visi Media Asia在电视业务tvOne上可以实施的五大战略。QSPM处理结果产生了最有趣的策略,这些策略被那些取得技术突破的公司用作竞争策略,这些技术突破可以在TAS值为7,07的数字和模拟媒体之间架起桥梁。
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引用次数: 0
Measurement of Thermal Expansion Coefficient on Electric Cable Using X-Ray Digital Microradiography 用x射线数字显微摄影技术测量电缆热膨胀系数
Y. Affriyenni, G. Suparta, Galandaru Swalaganata
Electric cable is a medium to conduct electrical energy. Expansion and contraction caused by thermal changes may result in an aging effect on the cable. This paper presents the way to observe the expansion in electrical cable due to thermal changes using the x-ray microradiography. The observed electric cables were NYA, NYAF, and NYM, each with cross-sectional areas of 1.5 mm2 and 2.5 mm2. The temperature was monitored using a DS18B20 sensor compiled into a microcontroller. In order to process and analyze the cables images, an ImageJ software was used. The image differences were compared based on the value of the digital image correlation. The physical analysis was carried out based on Adrian’s FWHM and calculated using the regression method. The accurate structural dimension measurement using x-ray digital microradiography is about 50 μm/pixel. The average relative error measured was less than 3%.
电缆是传导电能的介质。热变化引起的膨胀和收缩可能会导致电缆老化。本文介绍了用x射线显微摄影技术观察电缆因热变化而膨胀的方法。观察到的电缆为NYA、NYAF和NYM,每条电缆的横截面积分别为1.5 mm2和2.5 mm2。温度监测使用DS18B20传感器编译成一个微控制器。为了对电缆图像进行处理和分析,使用了ImageJ软件。根据数字图像相关值对图像差异进行比较。基于Adrian’s FWHM进行物理分析,采用回归法进行计算。采用x射线数字显微摄影技术精确测量结构尺寸约为50 μm/像素。测量的平均相对误差小于3%。
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引用次数: 3
Partial Discharge and Breakdown Strength of Plasma Treated Nanosilica/LDPE Nanocomposites 等离子体处理纳米二氧化硅/LDPE纳米复合材料的局部放电和击穿强度
N. Awang, M. H. Ahmad, Z. Abdul-Malek, Z. Nawawi, M. Sidik, M. Jambak, Aulia, E. P. Waldi
Nanocomposites have been actively studied in recent years as an insulating material due to their excellent in electrical, mechanical and thermal properties. Even though, the addition of nanoparticles into polymer matrices showed better performance in relation to partial discharge (PD) and AC breakdown strength tests. However, the introduction of nanoparticles could lead to the formation of agglomeration of the fillers which may nullify the true capabilities of the composites. Therefore, silane coupling agent was introduced for surface functionalization treatment of the nano filler but among the issues associated are toxicity and complexity. In the present study, atmospheric pressure plasma is proposed to enhance the surface functionalization of the nano filler. This proposed method was used to treat the nanosilica (SiO2) surfaces to enhance the interfacial interaction between the host (LDPE) and nano filler. SiO2 nano filler was added into the LDPE at weight percentages of 1, 3 and 5%. The phase-resolved PD behaviour and Weibull analysis of AC breakdown strength of untreated and plasma-treated LDPE nanocomposites were measured to evaluate the performance of the samples. As results, the plasma treated LDPE nanocomposites experience apparent increments of the PD resistance and AC breakdown strength as compared to the untreated nanocomposites. It is implied that the plasma treatment of nanosilica has contributed to the enhancement of the filler dispersion and eventually reducing the agglomeration.
纳米复合材料由于其优异的电学、力学和热学性能,近年来作为一种绝缘材料得到了广泛的研究。尽管如此,在聚合物基体中加入纳米颗粒在局部放电(PD)和交流击穿强度测试中表现出更好的性能。然而,纳米颗粒的引入可能导致填料团聚的形成,这可能会使复合材料的真正性能失效。因此,引入硅烷偶联剂对纳米填料进行表面功能化处理,但存在毒性和复杂性等问题。本研究提出常压等离子体来增强纳米填料的表面功能化。采用该方法对纳米二氧化硅(SiO2)表面进行处理,增强了基体(LDPE)与纳米填料之间的界面相互作用。在LDPE中分别添加重量百分比为1、3、5%的SiO2纳米填料。测量了未处理和等离子体处理的LDPE纳米复合材料的相分辨PD行为和交流击穿强度的Weibull分析,以评估样品的性能。结果表明,与未处理的纳米复合材料相比,等离子体处理的LDPE纳米复合材料的抗PD和交流击穿强度明显增加。结果表明,等离子体处理有助于提高填料的分散性,最终减少团聚现象。
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引用次数: 2
Demand Forecasting Considering Actual Peak Load Periods Using Artificial Neural Network 考虑实际高峰负荷期的人工神经网络需求预测
Octavia D.P. Yuan, A. Afandi, H. Putranto
Presently, electrical energy consumption continues to increase from year to year. Therefore, a short-term load forecasting is required that electricity providers can deliver continuous electrical energy to electricity consumers. By considering the estimation of the electrical load, the scheduling plan for operation and allocation of reserves can be managed well by the supply side. This study is focused on a forecasting of electrical loads using Artificial Neural Network (ANN) method considering a backpropagation algorithm model. The advantage of this method is to forecast the electrical load in accordance with patterns of past loads that have been taught. The data used for the learning is Actual Peak Load Period (APLP) data on the 150 kV system during 2017. Results show that the best network architecture is structured for the APLP Day and Night. Moreover, the momentum setting and understanding rate are 0.85 and 0.1 for the APLP Day. In contrast, 0.9 and 0.15 belong to the APLP Night. Based on the best network architecture, the APLP day testing process generates Mean Squared Error (MSE) around 0.04 and Mean Absolute Percentage Error (MAPE) around 4.66%, while the APLP Night generates MSE in 0.16 and MAPE in 16.83%.
目前,电能的消耗仍在逐年增加。因此,电力供应商需要对电力负荷进行短期预测,以便为电力消费者提供连续的电能。通过考虑电力负荷的估计,供电方可以很好地管理运行调度计划和储备分配。本文研究了基于反向传播算法模型的人工神经网络(ANN)电力负荷预测方法。这种方法的优点是可以根据已知的过去负荷模式来预测电力负荷。用于学习的数据是2017年150千伏系统的实际峰值负荷期(APLP)数据。结果表明,APLP白天和黑夜的网络结构是最佳的。此外,APLP日的动量设定率和理解率分别为0.85和0.1。相比之下,0.9和0.15属于APLP夜。基于最佳网络架构,APLP白天测试过程产生的均方误差(MSE)约为0.04,平均绝对百分比误差(MAPE)约为4.66%,而APLP夜间测试过程产生的MSE为0.16,MAPE为16.83%。
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引用次数: 0
Dual Frequency Continuous Wave Radar for Small Displacement Detection 用于小位移探测的双频连续波雷达
Andarining Palupi, A. A. Pramudita, D. Arseno, A. D. Setiawan
In several field such as structure health monitoring, landslide monitoring and medical measurement, small displacement is used as the indicator of any problem that may rise in such fields. High resolution radar system is required for small displacement detection in millimeter of centimeter scale. Continuous wave (CW) radar with its narrow bandwidth feature, has a simpler system comparing with other radar system. However, the modification is needed to present the ability of CW radar in detecting small displacement. In this paper, dual frequency CW radar was investigated and proposed for small displacement detection. Computer simulation has been conducted to study the capability of the proposed radar system. The result shows that the dual frequency CW radar at 10.525 GHz is capable to detect a small displacement in millimeter scale. The frequency difference of the radar signal needs to be adjusted to avoid the ambiguity in the detection result.
在结构健康监测、滑坡监测和医疗测量等领域,小位移被用作这些领域可能出现问题的指标。毫米到厘米尺度的小位移检测需要高分辨率的雷达系统。连续波雷达具有窄带宽的特点,与其他雷达系统相比,系统较为简单。但是,为了体现连续波雷达探测小位移的能力,需要对其进行改进。本文研究并提出了一种用于小位移探测的双频连续波雷达。计算机仿真研究了该雷达系统的性能。结果表明,10.525 GHz双频连续波雷达能够探测到毫米尺度的小位移。需要对雷达信号的频差进行调整,以避免探测结果的模糊。
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引用次数: 2
Appropriate Sets of Criteria for Innovation Adoption of IS Security in Organizations 组织创新采用信息系统安全的适当标准
Sandy Kosasi, Vedyanto Vedyanto, I. D. Ayu Eka Yuliani
Determining sets of criteria and alternatives becoming main priorities is essential to guarantee the success of innovation adoption of Information System (IS) security. The goal of this research was to select and determine important entities as representation of each criterion for managers in making decisions of innovation adoption of IS security. This research applied Technology-Organization-Environment (TOE) Framework, and Human-Organization-Technology-Fit (HOT-Fit) Model to map relative importance variables of criteria and alternatives. AHP Approach was applied for computation simulation to determine priorities of criteria and alternatives. Results show that a principal criterion is manpower of organizations. The eigen factor score is 4.398. Moreover, alternatives covering complexity, financial resources, intensity of competition, and CIO innovativeness have these respective eigen factors scores: 4.326, 9.307, 4.376, and 4.545.
确定一套标准和替代方案成为主要优先事项,对于确保信息系统(is)安全创新采用的成功至关重要。本研究的目的是选择和确定重要的实体,作为管理者在制定创新采用信息系统安全决策时的每个标准的代表。本研究采用技术-组织-环境(TOE)框架和人-组织-技术-适合(HOT-Fit)模型来映射标准和备选方案的相对重要性变量。采用层次分析法进行计算仿真,确定准则和备选方案的优先级。结果表明,组织的人力资源是一个主要的衡量标准。特征因子得分为4.398。复杂性、财务资源、竞争强度和CIO创新的特征因子得分分别为4.326、9.307、4.376和4.545。
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引用次数: 2
EECSI 2018 List of Papers EECSI 2018论文目录
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引用次数: 0
Application of LoRa WAN Sensor and IoT for Environmental Monitoring in Riau Province Indonesia LoRa广域网传感器和物联网在印尼廖内省环境监测中的应用
E. A. Kadir, Akmar Efendi, S. Rosa
Land and forest fires especially in Riau Province, Indonesia, have affected the length and breadth of Indonesia. The fires are normally hampered by seasonal dry conditions such as El Nino effect. In addition, the haze has affected the neighboring countries such as Malaysia, Singapore and south of Thailand. The effects of haze on human health as reported in that particular year were about 20 million people have suffered from respiratory problems and serious deterioration in overall health. There were other effects on environment, economy, flora and fauna in Southeast Asia region due to this disaster. This research proposes to develop a smart monitoring system using Long Range Wide Area Network (LoRa WAN) with low power wireless data communication and Internet of Things (IoT) technology. With LoRa technology, data can be transmitted up to 30 miles which is worthwhile to cover some of Riau Province that have been badly impacted by this disaster. In this article propose to develop sensors system that capable of detecting land and forest fire. The sensors will be located at several locations that has badly impacted previously. LoRa IoT Technology will be deployed to provide a platform for connecting the sensors. An early indication of land or forest fires is vital for quick prevention before they become uncontrollable and overwhelming. The design and development of LoRa sensors give high feasibility to overcome current issues in Riau Province because of land and forest fire.
土地和森林火灾,特别是在印度尼西亚廖内省,影响了印度尼西亚的长度和广度。火灾通常受到厄尔尼诺效应等季节性干旱条件的阻碍。此外,雾霾还影响了马来西亚、新加坡和泰国南部等邻国。据报道,在该特定年份,雾霾对人类健康的影响是,约有2000万人患有呼吸系统疾病,整体健康状况严重恶化。这次灾难还对东南亚地区的环境、经济、动植物造成了其他影响。本研究提出利用低功耗无线数据通信和物联网(IoT)技术,开发一种基于LoRa WAN的智能监控系统。有了LoRa技术,数据可以传输到30英里远的地方,这对于覆盖受这次灾难严重影响的廖内省的一些地区来说是值得的。本文提出了一种能够探测土地和森林火灾的传感器系统。这些传感器将被安置在之前受到严重影响的几个地点。将部署LoRa物联网技术,为连接传感器提供平台。土地或森林火灾的早期迹象对于在无法控制和压倒一切之前迅速预防至关重要。LoRa传感器的设计和开发为克服廖内省目前因土地和森林火灾而引起的问题提供了很高的可行性。
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引用次数: 28
期刊
2018 5th International Conference on Electrical Engineering, Computer Science and Informatics (EECSI)
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