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Proceedings of the The International Conference on Engineering & MIS 2015最新文献

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Investigation of Artificial Neural Networks Capability to Predict Viscosity of Lubricants Used in Journal Bearings 人工神经网络预测滑动轴承所用润滑油粘度的能力研究
Pub Date : 2015-09-24 DOI: 10.1145/2832987.2833019
E. Maleki, H. Sadrhosseini, A. Ghiami
Lubrication is one of the essential parts of various processes and instruments namely rotational devices such as bearings. Artificial intelligence (AI) systems such as artificial neural networks (ANNs) have been applied to solve, predict and optimize in engineering problems in the last decade. Present study assesses the capability of artificial neural networks (ANNs) in estimating viscosity of lubricants used in the lubrication of journal bearings. Using neural networks instead of running various tests to predict lubricant viscosity reduces costs and eliminates the necessity of using various devices and instruments by the researcher. The data of SAE 10, 20, 30, and 40 lubricants were used to train the neural networks. Back propagation (BP) error algorithm employed to networks training. Also, lubricant temperature was used as the input and its viscosity as the output of the simulation. In order to increase the accuracy of network training, a separate network was learned for each grade of lubricant, and the structure of each neural network and the effective parameters were optimized for each lubricant type through trial-and-error so that they would make more accurate predictions. The results of this simulation show that the error of neural networks in estimating lubricant viscosity in SAE 10, 20, 30, and 40 lubricants are in very small range, which indicate the capability of neural networks in the estimation of the desired parameters.
润滑是各种工艺和仪器(即轴承等旋转设备)的重要组成部分之一。人工智能(AI)系统,如人工神经网络(ANN),在过去十年中已被用于解决、预测和优化工程问题。本研究评估了人工神经网络(ANN)在估算轴颈轴承润滑剂粘度方面的能力。使用神经网络而不是进行各种测试来预测润滑油粘度,不仅降低了成本,还省去了研究人员使用各种设备和仪器的必要。SAE 10、20、30 和 40 润滑油的数据用于训练神经网络。网络训练采用了反向传播(BP)误差算法。此外,还将润滑油温度作为输入,将其粘度作为模拟输出。为了提高网络训练的准确性,对每种等级的润滑油都学习了一个单独的网络,并通过试错对每种润滑油类型的神经网络的结构和有效参数进行了优化,使其能够做出更准确的预测。模拟结果表明,神经网络在估计 SAE 10、20、30 和 40 润滑油粘度时的误差范围非常小,这表明神经网络有能力估计所需的参数。
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引用次数: 1
The Comparison Study of Hierarchical Routing Protocols for Ad-Hoc and Wireless Sensor Networks: A Literature Survey Ad-Hoc和无线传感器网络分层路由协议的比较研究:文献综述
Pub Date : 2015-09-24 DOI: 10.1145/2832987.2833039
Ibrihich Ouafaa, Laassiri Jalal, Krit Salah-ddine, E. Said
The hierarchical clustering is an efficient way to reduce the overall energy consumption within the cluster by performing aggregation and fusion of data. Clusters create hierarchical WSNs, which facilitate efficient utilization of limited resources of sensor nodes and thus extend network lifetime, reduce energy consumption of the system and provide overall system scalability. The proposed work of this paper is to provide an overview of hierarchical protocols and an overview of the protocol's performance. In this paper, we present the study of different clustering routing protocols of WSN and Ad-Hoc. The main focus of this paper is to give the comparison of different hierarchical routing protocols between WSNs and Ad-Hoc on various parameters.
分层聚类是一种通过对数据进行聚合和融合来降低集群内整体能耗的有效方法。集群创建分层的wsn,有利于有效利用有限的传感器节点资源,从而延长网络寿命,降低系统能耗,并提供整体系统的可扩展性。本文提出的工作是提供分层协议的概述和协议的性能概述。本文主要研究了无线传感器网络和Ad-Hoc中不同的分组路由协议。本文重点比较了无线传感器网络和Ad-Hoc在不同参数下的分层路由协议。
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引用次数: 21
An Approach to Find Missing Values in Medical Datasets 一种查找医疗数据集缺失值的方法
Pub Date : 2015-09-24 DOI: 10.1145/2832987.2833083
B. Bai, N.Mangathayaru, B. Rani
Mining medical datasets is a challenging problem before data mining researchers as these datasets have several hidden challenges compared to conventional datasets. Starting from the collection of samples through field experiments and clinical trials to performing classification, there are numerous challenges at every stage in the mining process. The preprocessing phase in the mining process itself is a challenging issue when, we work on medical datasets. One of the prime challenges in mining medical datasets is handling missing values which is part of preprocessing phase. In this paper, we address the issue of handling missing values in medical dataset consisting of categorical attribute values. The main contribution of this research is to use the proposed imputation measure to estimate and fix the missing values. We discuss a case study to demonstrate the working of proposed measure.
对于数据挖掘研究人员来说,挖掘医疗数据集是一个具有挑战性的问题,因为与传统数据集相比,这些数据集存在一些隐藏的挑战。从通过现场实验和临床试验收集样品到进行分类,在挖掘过程的每个阶段都面临着许多挑战。当我们处理医疗数据集时,挖掘过程中的预处理阶段本身就是一个具有挑战性的问题。挖掘医疗数据集的主要挑战之一是预处理阶段的缺失值处理。在本文中,我们解决了由分类属性值组成的医疗数据集中缺失值的处理问题。本研究的主要贡献是使用所提出的估算方法来估计和修正缺失值。我们讨论了一个案例研究来证明所提出的措施的有效性。
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引用次数: 16
Analysis of the Modified Weibull Distribution for Estimation of Wind Speed Distribution 估计风速分布的修正威布尔分布分析
Pub Date : 2015-09-24 DOI: 10.1145/2832987.2833059
Ismail Yenilmez, Y. Kantar, I. Arik, I. Usta
Finding suitable wind speed distribution is one of the most important tasks for the correct estimation of wind energy potential of the specified region. The Weibull distribution is the well-known and suggested distribution in estimating wind energy potential. However, in order to predict wind energy more correctly, new and flexible statistical distributions have been proposed in the last decade. In this study, we introduce a new modified Weibull distribution (MWD) for modelling wind speed and estimating wind power density and also we test MWD versus the classical Weibull distribution on real wind speed data measured in various regions of Turkey. The results of the analysis indicate that MWD suits well for most of the examined wind data cases. Therefore, MWD can be alternatively used for assessment of wind energy potential.
寻找合适的风速分布是正确估计指定区域风能潜力的重要任务之一。威布尔分布是估计风能潜力的一种众所周知的和被建议的分布。然而,为了更准确地预测风能,在过去十年中提出了新的灵活的统计分布。在这项研究中,我们引入了一种新的修正威布尔分布(MWD)来模拟风速和估计风力密度,并在土耳其不同地区的实际风速数据上测试了MWD与经典威布尔分布的对比。分析结果表明,随钻测井方法适用于大多数实测风资料。因此,随钻测井可以替代用于风能潜力的评估。
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引用次数: 1
Modeling of Liquid-Liquid Equilibrium Data and Estimation of New Binary Interaction Parameters for NRTL Model for the Quaternary System Water/ Ethanol/1-Butanol / KCL at 298.15K 298.15K水/乙醇/1-丁醇/ KCL四元体系液-液平衡数据建模及二元相互作用新参数估计
Pub Date : 2015-09-24 DOI: 10.1145/2832987.2832992
E. N. Bourayou, A. Méniai, A. Gouaoura
The present study concerns experimental measurements of the salting-out effect on liquid-liquid phase equilibrium (LLE) of partially miscible systems such as water/ ethanol/1- butanol /Potassium chloride at 298.15K. The salt KCl was used at different mass percentages of 5, 10 and 15. The binodal and tie line data results were determined by the cloud point method. The addition of the salt showed to be effective in altering the LLE of water/ ethanol/1- butanol system in favor of the solvent extraction of ethanol from the aqueous solution particularly at high salt concentrations. The experimental data were correlated considering the modified version of the NRTL model for the activity coefficient, with the estimation of new binary interaction parameters corresponding to salt-solvent and solvent-solvent pairs. The deviations between experimental and calculated compositions in both phases for the ternary system using these new interaction parameters showed the ability of NRTL to determine liquid-liquid equilibrium data of the studied system in the presence of the salts.
本研究是在298.15K下对水/乙醇/1-丁醇/氯化钾等部分混相体系的液-液相平衡(LLE)的盐析效应的实验测量。KCl盐以5、10、15的质量百分比添加。采用云点法确定双节点和直线数据结果。结果表明,盐的加入可以有效地改变水/乙醇/1-丁醇体系的LLE,有利于乙醇的溶剂萃取,特别是在高盐浓度下。采用改进的NRTL活度系数模型,将实验数据与盐-溶剂和溶剂-溶剂对对应的二元相互作用参数进行关联。用这些新的相互作用参数计算的三元体系两相组成与实验结果之间的偏差表明,NRTL能够确定盐存在时所研究体系的液-液平衡数据。
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引用次数: 2
ATP: Adaptive Tuning Protocol for Service Discovery in Internet of Things ATP:物联网服务发现的自适应调优协议
Pub Date : 2015-09-24 DOI: 10.1145/2832987.2833058
Mamoun Qasem, A. Al-Dubai, R. Imed, Muneer Bani Yassien
Energy is a precious resource in Internet of Things (IoT) especially with battery operated nodes, the overhead that consumes the battery power of the sensor nodes is a fundamental problem. This overhead is mainly caused by the frequent update messages sent to service directories. Although this problem has been investigated in the literature, it is still in its infancy as existing works do not consider the dynamic adjustments of the update messages. To fill in this gap, this paper presents a new adaptive tuning approach between sensor nodes and the resource directory to adjust the frequency of updates based on the battery level of the sensing node. Our protocol works dynamically in both modes, stateless and stateful service registration mechanisms.
在物联网(IoT)中,能源是一种宝贵的资源,特别是对于电池供电的节点,传感器节点消耗电池电力的开销是一个根本问题。这种开销主要是由于频繁地向服务目录发送更新消息造成的。虽然这个问题已经在文献中进行了研究,但由于现有的工作没有考虑更新消息的动态调整,它仍然处于起步阶段。为了填补这一空白,本文提出了一种新的传感器节点与资源目录之间的自适应调谐方法,根据传感节点的电池电量调整更新频率。我们的协议在两种模式下动态工作,无状态和有状态的服务注册机制。
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引用次数: 0
Modularity Measurement and Evolution in Object-Oriented Open-Source Projects 面向对象开源项目中的模块化度量和进化
Pub Date : 2015-09-24 DOI: 10.1145/2832987.2833013
Mamdouh Alenezi, M. Zarour
Throughout the software evolution, several maintenance actions such as adding new features, fixing problems, improving the design might negatively or positively affect the software design quality. Quality degradation, if not handled in the right time, can accumulate and cause serious problems for future maintenance effort. In this work, we study the modularity evolution of two open-source systems by answering two main research questions namely: what measures can be used to measure the modularity level of software and secondly, did the modularity level for the selected open source software improves over time. By investigating the modularity measures, we have identified the main measures that can be used to measure software modularity. Based on our analysis, the modularity of these two systems is not improving over time.
在整个软件发展过程中,一些维护操作,如添加新特性、修复问题、改进设计,可能会对软件设计质量产生消极或积极的影响。如果不及时处理,质量退化可能会累积并导致未来维护工作的严重问题。在这项工作中,我们通过回答两个主要的研究问题来研究两个开源系统的模块化演变,即:什么措施可以用来衡量软件的模块化水平,其次,所选开源软件的模块化水平是否随着时间的推移而提高。通过研究模块化度量,我们已经确定了可用于度量软件模块化的主要度量。根据我们的分析,这两个系统的模块化并没有随着时间的推移而改进。
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引用次数: 10
Evaluation of Robust Estimation Methods in Estimating Weibull Parameters for Wind Energy Application 风电应用中威布尔参数鲁棒估计方法的评价
Pub Date : 2015-09-24 DOI: 10.1145/2832987.2833041
I. Arik, Y. Kantar, I. Usta, Ismail Yenilmez
Two-parameter Weibull distribution has been widely-used reference distribution in wind energy studies and thus its parameter estimation methods have been well-studied in the literature. However, the literature have generally focused on non-robust methods which produce unreliable results in the cases of wind speed data with outliers. In this study, we deal with robust estimation methods of the Weibull distribution for wind energy applications. The considered robust methods are evaluated for both clear and contaminated real wind data cases. It was found that the considered robust methods provides reliable results when it is taken into account in the case of real wind speed data cases. Also, the certain robust methods for the Weibull distribution yield less mean power density error than classical methods in the case of wind speed data with outliers. As a result, it is deduced from analysis that robust methods can be simultaneously used with efficient estimators to check the estimated reliability of the results on wind power.
双参数威布尔分布是风能研究中广泛使用的参考分布,其参数估计方法在文献中得到了很好的研究。然而,文献通常集中在非鲁棒方法上,这些方法在具有异常值的风速数据的情况下产生不可靠的结果。在本研究中,我们讨论了风能应用中威布尔分布的鲁棒估计方法。考虑的鲁棒方法评估了干净和污染的实际风数据的情况下。结果表明,当考虑到实际风速数据时,所考虑的鲁棒方法提供了可靠的结果。此外,对于具有异常值的风速数据,某些针对威布尔分布的鲁棒方法产生的平均功率密度误差比经典方法要小。分析结果表明,鲁棒方法可以与有效的估计器同时使用,以检验风电估计结果的可靠性。
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引用次数: 1
Genetic Algorithms for Solving Bicriteria Dynamic Job Shop Scheduling Problems with Alternative Routes 求解可选路径双准则动态作业车间调度问题的遗传算法
Pub Date : 2015-09-24 DOI: 10.1145/2832987.2833038
Abdalla Ali, P. Hackney, David Bell, M. Birkett
Solving scheduling problems with a single criterion is considered unsatisfactory for real-world applications. Therefore, more attention has been given to multiple objective scheduling problems. In this paper, we use a genetic algorithms to solve job shop scheduling problems with alternative routes and dynamic job arrival in order to simultaneously minimize the maximum lateness and makespan. Firstly, genetic algorithms have been applied to find a set of optimum feasible solutions for the makespan criterion. Individuals or solutions with values less than or equal to the value of maximum lateness with minimum makespan are then used to form the initial population in genetic algorithms for the second criterion in order to minimize the maximum lateness. A method of finding non-dominated solutions is then proposed, and weighted-sum is used to find the most desirable solution based on the weight of each criteria. Finally the model is tested using different instances, with the obtained results demonstrating the effectiveness of the proposed method to solve bicriteria dynamic job shop scheduling problems with alternative routes.
对于现实世界的应用程序来说,用单一标准解决调度问题被认为是不能令人满意的。因此,多目标调度问题越来越受到人们的关注。本文采用遗传算法求解具有可选路径和动态作业到达的作业车间调度问题,以同时最小化最大延迟和最大完工时间。首先,利用遗传算法对最大完工时间准则求出一组最优可行解。然后,将值小于或等于最大迟到与最小完工时间值的个体或解用于第二个准则的遗传算法中的初始种群,以最小化最大迟到。然后提出了一种寻找非支配解的方法,并利用加权和方法根据各准则的权重找到最理想的解。最后用不同的实例对模型进行了测试,结果表明该方法能够有效地解决带备选路径的双准则动态作业车间调度问题。
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引用次数: 1
Development of a micro energy harvester using multiple vibration modes 多振动模式微能量采集器的研制
Pub Date : 2015-09-24 DOI: 10.1145/2832987.2833045
C. Tay, C. Quan, Chengkuo Lee, Hongwei Liu
Energy harvesting from ambient vibrations provides a clean and regenerative solution for powering autonomous sensors which have been widely utilized in numerous practical applications including general, medical and military industries. In recent years, numerous research works on energy harvesting have been carried out using piezoelectric, electromagnetic, electrostatic and thermoelectric mechanisms. In this work, we have proposed a micro piezoelectric energy harvester with a wide operating frequency range. The device consists of a movable circular-mass with three sets of double-layer aluminum coils, a circular-ring which incorporates a permanent magnet and a supporting beam. The harvester is capable of harnessing energy at multiple vibration modes with various 3-dimensional (3-D) excitation frequencies. The 3-D dynamic behavior and performance of the device show that the first vibration mode is an out-of-plane motion, while the second and third modes are in-plane motion at angles of 60° and 150° respectively to the horizontal axis. For a specific excitation acceleration, maximum power densities can be achieved at different 3-D vibration modes. Experimental results obtained show good agreement with that of simulated and the results indicate a good potential for the device to be developed into a practical tool for harnessing energy at multiple 3-D vibration modes.
从环境振动中收集能量为自主传感器提供了一种清洁和再生的解决方案,这些传感器已广泛应用于包括通用、医疗和军事工业在内的许多实际应用中。近年来,利用压电、电磁、静电和热电机制进行了大量的能量收集研究工作。在这项工作中,我们提出了一种具有宽工作频率范围的微型压电能量采集器。该装置由一个可移动的圆体和三组双层铝线圈、一个包含永磁体的圆环和一个支撑梁组成。收割机能够在多种振动模式下利用各种三维(3-D)激励频率的能量。对该装置的三维动力特性和性能进行了分析,结果表明该装置的第一振动模态为面外运动,第二和第三振动模态分别为与水平轴成60°和150°角的面内运动。对于特定的激励加速度,在不同的三维振动模式下可以获得最大的功率密度。实验结果与仿真结果吻合较好,表明该装置具有发展成为多种三维振动模式下能量利用的实用工具的潜力。
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引用次数: 1
期刊
Proceedings of the The International Conference on Engineering & MIS 2015
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