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2019 5th International Conference on Engineering, Applied Sciences and Technology (ICEAST)最新文献

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Product recommendation based on genetic algorithm 基于遗传算法的产品推荐
U. Janjarassuk, S. Puengrusme
In this paper, we propose a product recommendation system based on genetic algorithm to find the best recommendation for a combination of products to the customers. The model evaluation relies on customer preferences and product requirements as well as feature ratings from the product experts. The system is tested by using a case study from recommendation of power unit selection for recording studio. Experimental results are provided.
在本文中,我们提出了一个基于遗传算法的产品推荐系统,以寻找产品组合的最佳推荐给客户。模型评估依赖于客户偏好和产品需求以及产品专家的功能评级。以录音棚动力单元选型推荐为例,对该系统进行了测试。给出了实验结果。
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引用次数: 9
A Deep Learning Model for Odor Classification Using Deep Neural Network 基于深度神经网络的气味分类深度学习模型
Boonyawee Grodniyomchai, K. Chalapat, Kulsawasd Jitkajornwanich, S. Jaiyen
The odor is an environment that surrounds us. However, to identify the odor by using the human nose in order to prove the odor is very dangerous. Therefore, the artificial intelligent (AI) system should be built based on machine learning in order to achieve more accurate results. This research adopts the Deep Neural Network (DNN) model to identify some types of odor including odorless, beer odor, whisky odor, and wine odor. Each contains 60 instances that are obtained from seven sensors of the electronic nose. The experiments are conducted, and the results are compared to the comparative machine learning methods including Multilayer Perceptron (MLP), Decision Tree and Naïve Bayes (NB). From the experimental results, it can signify that the proposed deep learning model can achieve the best average accuracy.
气味是我们周围的一种环境。然而,用人的鼻子来识别气味,以证明气味是非常危险的。因此,为了获得更准确的结果,人工智能(AI)系统应该建立在机器学习的基础上。本研究采用深度神经网络(Deep Neural Network, DNN)模型对几种气味进行识别,包括无臭气味、啤酒气味、威士忌气味和葡萄酒气味。每个包含60个实例,这些实例来自电子鼻的7个传感器。进行了实验,并将实验结果与多层感知器(Multilayer Perceptron, MLP)、决策树(Decision Tree)和Naïve贝叶斯(NB)等机器学习方法进行了比较。从实验结果可以看出,所提出的深度学习模型可以达到最佳的平均准确率。
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引用次数: 5
Design of a Cyber-Physical System using STEM: Chicken Egg Incubator 基于STEM的信息物理系统的设计:鸡蛋孵化器
Pirapat Tangsuknirundorn, P. Sooraksa
In this paper, STEM approach to study, design and implement chicken egg incubator as a cyber-physical system is demonstrated. In science viewpoint (S), bringing a life to earth can provide magnificent feeling that inspires students to learn more about life sciences. In views of technology (T), the students learn how to design and use micro-controllers, sensors and other components. Specifically the students also develop programming skills in controlling optimal ventilation, temperature and relative humidity for incubators in order to hatch chicken eggs. In Engineering and Mathematically (E&M), Kalman filter is adopted to estimate the states from a series of noisy measurements. According to our experiment, based on the survey questionnaire, the learning outcomes are satisfied
本文演示了用STEM方法研究、设计和实现作为信息物理系统的鸡蛋孵化器。在科学观点(S)中,把生命带到地球上可以提供一种宏伟的感觉,激励学生更多地了解生命科学。在技术(T)方面,学生学习如何设计和使用微控制器、传感器和其他组件。具体地说,学生们还会发展编程技能,控制最佳通风,温度和相对湿度的孵化器,以孵化鸡蛋。在工程与数学(E&M)中,采用卡尔曼滤波从一系列噪声测量中估计状态。根据我们的实验,基于调查问卷,学习效果是满意的
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引用次数: 3
Design and build of a planar acoustic camera using digital microphones 采用数字传声器的平面声学相机的设计与制造
Khemapat Tontiwattnakul, Jatupon Hongweing, Peerawit Trakulsatjawat, Pataweekan Noimai
Acoustic cameras are widely used as a tool for noise source investigation. Conventionally, an acoustic camera system consists of a camera combined with an array of microphones, and data acquisition system. This work aims to design and build an acoustic camera based on hardware and software that available in the market. As a result of this work, a development environment of an acoustic camera system based on a use of digital microphone and Raspberry Pi is proposed. An acoustic camera was built and test. The details on hardware integration and development environment are discussed in this paper.
声学摄像机作为噪声源调查的工具被广泛使用。传统上,声学相机系统包括与麦克风阵列相结合的相机和数据采集系统。本课题旨在基于市场上可用的硬件和软件,设计和制造一种声学相机。在此基础上,提出了一种基于数字麦克风和树莓派的声相机系统开发环境。制作并测试了声学摄像机。本文详细讨论了硬件集成和开发环境。
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引用次数: 5
An Efficient Non-Thermal Food Processing System by Underwater Shockwaves Using Two Pairs of Restoration Electrodes 利用两对恢复电极的水下冲击波高效非热食品加工系统
Hiroto Abe, Wanglok Do, K. Eguchi
Non-thermal food processing systems using underwater shockwaves can process only a part of the food at once. In order to process several parts of the food at once, we propose an efficient non-thermal food processing system using two pairs of restoration electrodes. The difference between the proposed and conventional systems is the number of electrode pairs, the shape of electrodes, and the use of thin wires. By placing two pairs of electrodes across a target food, underwater shockwaves destroy the target food from both sides. Therefore, both sides of the target food are processed at once. Also, a hole is formed in one electrode and a square-shaped thin wire penetrates through the hole. Further, an insulator is attached to the electrode with the hole. By using the thin wire, the energy for generating the underwater shockwaves can be reduced. Also, the thin wire returns to the original position after discharging process, which makes it possible discharge continuously. In experiments, we processed an apple as the target food by using the proposed and conventional systems, and compared the results by measuring the flesh firmness of the apple. By using the proposed method, the processing range of apples can be expanded, and the softness equivalent to the conventional method can be realized.
使用水下冲击波的非热食品加工系统一次只能加工一部分食品。为了同时处理食品的多个部分,我们提出了一种使用两对恢复电极的高效非热食品加工系统。所提出的系统与传统系统的区别在于电极对的数量、电极的形状和细导线的使用。通过在目标食物上放置两对电极,水下冲击波从两侧摧毁目标食物。因此,目标食品的两面都是一次性加工的。此外,在一个电极上形成一个孔,并且方形细线穿过该孔。此外,绝缘体连接到具有孔的电极上。通过使用细导线,可以减少产生水下冲击波的能量。同时,细导线在放电过程结束后回到原来的位置,使得连续放电成为可能。在实验中,我们使用所提出的系统和常规系统加工了一个苹果作为目标食品,并通过测量苹果的果肉硬度来比较结果。利用该方法可以扩大苹果的加工范围,实现与传统方法相当的柔软度。
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引用次数: 3
Simple Current-Controlled VDTA-R Schmitt Trigger Circuit 简单的电流控制VDTA-R施密特触发电路
P. Moonmuang, S. Unhavanich, W. Tangsrirat
A simple current-controlled Schmitt trigger circuit employing single voltage differencing transconductance amplifier (VDTA) and only two grounded resistors is presented. The proposed Schmitt trigger circuit offers independent electronic adjustability of its threshold voltage levels and output voltage amplitudes by the help of corresponding VDTA bias currents. In addition, both clockwise and counter-clockwise hystereses are also achievable. To justify the theoretical predictions, the verification of the proposed Schmitt trigger circuit is performed by PSPICE simulation software using TSMC $0.25-mumathbf{m}$ CMOS technology.
提出了一种简单的电流控制施密特触发电路,该电路采用单电压差跨导放大器(VDTA)和两个接地电阻。所提出的Schmitt触发电路通过相应的VDTA偏置电流提供其阈值电压电平和输出电压幅值的独立电子可调性。此外,顺时针和逆时针的滞后也是可以实现的。为了验证理论预测,采用TSMC $0.25-mumathbf{m}$ CMOS技术,通过PSPICE仿真软件对所提出的施密特触发电路进行了验证。
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引用次数: 1
Application Data for Electricity Load Forecasting Models 电力负荷预测模型的应用数据
Sooppasek Katruksa, S. Jiriwibhakorn
This paper used artificial neural networks (ANN) in medium-term energy forecasting for the Metropolitan Electricity Authority (MEA) area of Bangkok, Thailand. This method could improve the electricity load efficiency of the MEA. Moreover, The combined ANN with the GIS in next paper have a key role in the decision-making for investment in new substation and power system planning for maintenance and operation. The input data were clustered by K-means algorithms before training by forecasting the models. In this research, the energy forecasting models were the ANN (2 hiddens & 4 hiddens). The prediction was based on the MEA's electrical energy history (six months; three months) and the gross domestic product (GDP). The results appeared to indicate that the prediction of ANN 4 hiddens (Classified Data Input) is more accurate.
本文将人工神经网络(ANN)应用于泰国曼谷大都会电力局(MEA)区域的中期能源预测。该方法可以提高MEA的负载效率。此外,本文将人工神经网络与地理信息系统相结合,在新建变电站的投资决策和电力系统的维护和运行规划中发挥关键作用。输入数据通过K-means算法聚类,然后通过预测模型进行训练。在本研究中,能源预测模型采用人工神经网络(2隐和4隐)。该预测是基于MEA的电能历史(6个月;三个月)和国内生产总值(GDP)。结果似乎表明,ANN 4隐式(分类数据输入)的预测更准确。
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引用次数: 1
Proposal of the Concept of a Breathing Assist System for Saxophone Players with Breathing Problems 为呼吸困难的萨克斯管演奏者提供呼吸辅助系统概念的建议
Tomonori Kato, K. Shimazaki, S. Nundrakwang, Pavarit Chuprasert, P. Thumwarin
This research aims to propose the concept of a breathing assist system for saxophone players with breathing problems. First, the quantity of pressure and air flow rate required to play an alto saxophone is determined by certain investigations and experiments. Second, the above-mentioned concept, which works like a pneumatic master-slave amplifier, is proposed and the details of each component are explained.
本研究旨在提出呼吸辅助系统的概念,为萨克斯管玩家呼吸问题。首先,演奏中音萨克斯管所需的压力和空气流速是通过一定的调查和实验确定的。其次,提出了上述概念,其工作原理类似于气动主从放大器,并解释了每个组件的细节。
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引用次数: 0
The design of the Domain Name System with Workload Distribution System Anycast DNS Type for UniNet in Thailand 泰国UniNet负载分配系统任播DNS类型域名系统的设计
Sattra Laomuad, Manutsiri Chansuttirangkool, Kriangsak Lekdee, S. Soysouvanh, C. Vongchumyen, S. Mitatha
This paper proposes the design of recursive Anycast DNS service system using as a replacement for the original unicast DNS service system that the UniNet Network is active and having problems supporting the volume of client traffic that has a large number of educational institutions. In order to increase the efficiency of providing services to clients of educational institutions. The designing from setting up the server host in various node and the designing the server connected to a suitable network for routing protocol has been proposed, including designing an emergency backup system that regards to compatibility with current network systems and the use of the original unicast DNS system to be useful. As a result of testing the designed system, it was found that the Query time of the new system was 2 times less than that of the original system for query IPv4, and 5 times less than that of the original system for query IPv6. Anycast DNS system that was installed can support the amount of DNS Query more 15 times than the original unicast DNS system.
本文提出了递归任播DNS服务系统的设计,以替代UniNet网络活跃的单播DNS服务系统,该系统在支持具有大量教育机构的客户端流量方面存在问题。为了提高为教育机构客户提供服务的效率。从服务器主机在各个节点的设置和服务器连接到适合路由协议的网络的设计两方面进行了设计,包括设计一个与现有网络系统兼容的应急备份系统,并尽量利用原有的单播DNS系统。对设计的系统进行测试,发现新系统查询IPv4的时间比原系统少2倍,查询IPv6的时间比原系统少5倍。安装的任播DNS系统可以支持比原单播DNS系统多15倍的DNS查询量。
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引用次数: 0
Transient Respond Comparison Between Modified Droop Control and Virtual Synchronous Generator in Standalone Microgrid 单机微电网改进下垂控制与虚拟同步发电机的暂态响应比较
D. Leng, S. Polmai
The inverter-based distributed generator (DG) plays a major role to solve the worldwide energy demand increasing and the environmental concern. The DG which controls by traditionally grid-connected current control confront some problems such as lacking the grid-forming ability and inertia. Therefore, the DG could not operate in standalone, and the DG's penetration rate is limited. To address these issues, the control strategy which imitates the synchronous's generator characteristic called droop control and virtual synchronous generator (VSG) are proposed recently. Seeing the potential of both control; this paper aims to investigate the dynamic performance of modified droop control and VSG. A simulation model of parallel DGs supply to a group of the load in the form of a standalone microgrid is implemented in MATLAB/Simulink. Two case studies such as power-sharing and load transient are carried out. The results have shown that VSG provides the outperform compare to the modified droop control when a large load transition is applied.
基于逆变器的分布式发电机(DG)在解决全球日益增长的能源需求和环境问题方面发挥着重要作用。传统的并网电流控制的分布式发电系统存在成网能力不足、惯性不足等问题。因此,DG不能独立运行,DG的渗透率受到限制。为了解决这些问题,最近提出了一种模仿同步发电机特性的控制策略——下垂控制和虚拟同步发电机(VSG)。看到两者控制的潜力;本文旨在研究改进下垂控制和VSG的动态性能。在MATLAB/Simulink中实现了并联dg以独立微电网形式向一组负载供电的仿真模型。进行了电力共享和负载暂态两个实例研究。结果表明,在大负载转换时,VSG比改进的下垂控制具有更好的性能。
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引用次数: 4
期刊
2019 5th International Conference on Engineering, Applied Sciences and Technology (ICEAST)
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