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eXSRUP: Hybrid Software Development Model Integrating Extreme Programing, Scrum & Rational Unified Process eXSRUP:集成了极限编程、Scrum和Rational统一过程的混合软件开发模型
Pub Date : 2015-11-01 DOI: 10.11591/IJEECS.V16.I2.PP377-388
Nidhi Sharma, Manoj Wadhwa
Software industries are progressively adopting the agile development practices of customized models such as Extreme Programming (XP) or Scrum or Rational Unified Process (RUP). Scrum and Extreme Programming (XP) are frequently used agile models, whereas Rational Unified Process (RUP) is one popular classic plan driven software development methodology. Both agile and plan driven models have their own merits & demerits such as XP has good engineering practices, team collaboration and on the other hand weak documentation, poor performance in medium & large scale projects. Scrum is based on project management practices. RUP model has some limitations such as impractical for small and fast paced projects, tendency to be over budgeted, condemn rapid changes in requirements. This research paper based on proposes hybrid framework eXSRUP by combining strengths of Scrum, XP and RUP by suppressing their limitations to produce high quality software.
软件行业正在逐步采用定制模型的敏捷开发实践,例如极限编程(XP)或Scrum或Rational统一过程(RUP)。Scrum和极限编程(XP)是经常使用的敏捷模型,而Rational统一过程(RUP)是一种流行的经典计划驱动软件开发方法。敏捷和计划驱动模型都有各自的优点和缺点,比如XP有良好的工程实践、团队协作,而另一方面,它缺乏文档,在大中型项目中表现不佳。Scrum是基于项目管理实践的。RUP模型有一些局限性,例如对于小型和快节奏的项目不实用,倾向于预算过多,谴责需求的快速变化。这篇研究论文提出了混合框架eXSRUP,通过结合Scrum、XP和RUP的优势,抑制它们的局限性来产生高质量的软件。
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引用次数: 11
Prediction of Poor Inhabitant Number Using Least Square and Moving Average Method 用最小二乘法和移动平均法预测贫困人口数量
Pub Date : 2015-11-01 DOI: 10.14569/IJACSA.2015.061033
N. Ekawati
Poor population in South Kalimantan recently shows a decreased number for the last three years, compared to few previous years. The number of poor population differs from time to time. This dynamical scaled number has actually been a problem for South Kalimantan local government to take proper policies to solve this matter.  It will then be necessary to predict potential number of poor population in the next year as the basis of subsequent policy making. This research will apply both Least Square and Moving Average methods as measurement to count prediction values. From the result, we can say that prediction analysis using those two methods is valid for predicting acquired number of potential people population based on its previous data due to its closest result to the actual condition. Reviewing the test result of last three years, the applied least square method shows validity of 92, 8%. Meanwhile, the applied moving average method shows validity of 98,8% both are considered valid.
最近,与前几年相比,南加里曼丹的贫困人口在过去三年中有所减少。贫困人口的数量在不同时期有所不同。这个动态比例实际上是南加里曼丹地方政府采取适当政策解决这个问题的一个问题。因此,有必要预测明年贫困人口的潜在人数,作为随后制定政策的基础。本研究将采用最小二乘法和移动平均法作为测量方法来计算预测值。从结果可以看出,这两种方法的预测分析结果与实际情况最接近,可以有效地预测获得的潜在人口数量。回顾近三年的测试结果,最小二乘法的有效性为92.8%。同时,应用的移动平均法的有效性为98.8%,均认为有效。
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引用次数: 4
Effects of Parameters Variation in Fuzzy based Induction Motor Drives 参数变化对模糊感应电机驱动的影响
Pub Date : 2015-11-01 DOI: 10.11591/IJEECS.V16.I2.PP272-280
M. Sulaiman, Zulhisyam Salleh, R. Omar
This paper presents the effects of parameters variation over the speed response of vector controlled induction motor drives for high performance applications. The design and simulation of fuzzy logic controller are considered based on design case constant parameter fuzzy logic (DCCPFL) controller. The scaling factors for DCCPFL controller are calculated based on identified motor parameter. The performance of the DCCPFL is compared with conventional PI controller. Three different parameters is tested under no-load and loaded conditions namely rotor resistance, inertia and self-inductance. From the simulation results, it is proved that the DCCPFL have better performance in term of different parameter variations and also load disturbances. Thus the DCCPFL is appropriate to replace the conventional PI for high performance of induction motor drives system.
本文介绍了参数变化对矢量控制的高性能异步电动机驱动器速度响应的影响。基于恒参数模糊控制器的设计实例,研究了模糊控制器的设计与仿真。根据辨识出的电机参数,计算出DCCPFL控制器的比例因子。将DCCPFL与传统PI控制器的性能进行了比较。在空载和负载条件下测试了转子电阻、惯量和自感三个不同的参数。仿真结果表明,DCCPFL在不同参数变化和负载扰动下都有较好的性能。因此,DCCPFL适合取代传统的PI来实现高性能的感应电机驱动系统。
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引用次数: 8
Study of BGP Convergence Time: A Survey BGP收敛时间研究综述
Pub Date : 2015-11-01 DOI: 10.11591/IJEECS.V16.I2.PP341-349
R. Devikar, Dipak V. Patil, V. Chandraprakash
Border Gatway Protocol (BGP), a path vector routing protocol, is a widespread exterior gateway protocol (EGP) in the internet. Extensive deployment of the new technologies in internet, protocols need to have continuous improvements in its behavior and operations. New routing technologies conserve a top level of service availability. Hence, due to topological changes, BGP needs to achieve a fast network convergence. Now a days size of the network growing very rapidly. To maintain the high scalability in the network BGP needs to avoid instability. The instability and failures may cause the network into an unstable state, which significantly increases the network convergence time. This paper summarizes the various approaches like BGP policies, instability, and fault detection etc. to improve the convergence time of BGP.
边界网关协议(Border gateway Protocol, BGP)是一种路径矢量路由协议,是互联网上广泛使用的外部网关协议(EGP)。随着互联网新技术的广泛应用,协议的行为和运行需要不断改进。新的路由技术保留了顶级的服务可用性。因此,由于拓扑结构的变化,BGP需要实现网络的快速收敛。如今网络的规模增长非常迅速。为了保持网络的高扩展性,BGP需要避免不稳定。这些不稳定和故障可能导致网络处于不稳定状态,从而大大增加了网络的收敛时间。本文综述了提高BGP收敛速度的各种方法,如BGP策略、不稳定性、故障检测等。
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引用次数: 0
Quantitative Analysis of Plant Growth Exposed to Electric Fields 电场作用下植物生长的定量分析
Pub Date : 2015-11-01 DOI: 10.11591/IJEECS.V16.I2.PP207-220
H. Ahmad, Mohd Hafizi Ahmad, Noor 'Aliaa Awang, I. H. Zakaria
Electromagnetic radiations present in the environment has a profound effect on the growth of vegetable plant primarily grown under the high power transmission lines. The high electric field generated due to ultra high voltage causes the increase and reduction in the size of the plants. Numerous research have been carried out to investigate the effect of electric field on the plants. However, the knowledge in term of quantitative analysis on the effect of electric field on the growth of vegetables is not entirely understood. Thus, this paper presents a study conducted to investigate the effect of high voltage DC electric fields on the young vegetables growth namely ‘Choy Sam’ and bean sprout. The experimental setup was designed which composed of two parallel plate electrodes. This research was focused on the percentage of germination and growing rate of young vegetables. The growth of the young vegetables during exposure was calculated by using statistical methods. The analysis of the results showed that the electric fields and the electric fields treated water have influenced the germination rate and height of stems of both young vegetables causing the increase in stem height. 
环境中存在的电磁辐射对主要生长在高压输电线路下的蔬菜植物的生长有着深远的影响。超高压产生的高电场导致植株大小的增减。为了研究电场对植物的影响,人们进行了大量的研究。然而,在定量分析电场对蔬菜生长的影响方面,人们还不完全了解。因此,本文研究了高压直流电场对白菜和豆芽幼菜生长的影响。设计了由两个平行板电极组成的实验装置。本研究主要对青菜的发芽率和生长率进行了研究。采用统计学方法计算辐照期间青菜的生长情况。分析结果表明,电场和电场处理后的水对两种幼菜的发芽率和茎高都有影响,导致茎高增加。
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引用次数: 5
Technologies used in Smart Grid to implement Power Distribution System 智能电网实现配电系统的技术
Pub Date : 2015-11-01 DOI: 10.11591/IJEECS.V16.I2.PP232-237
R. M. Larik, M. Mustafa
Recently, the debate has been going on about the role of power plus distribution systems, its technologies for future smart grids in power systems. The emerging of new technologies in smart grid and power distribution systems provide a significant change in terms of reduction the commercial and technical losses, improve the rationalization of electricity tariff. The new technologies in smart grid systems have different capabilities to increase the technological efficiency in power distribution systems. These new technologies are the foreseeable solution to address the power system issues. This paper gives a brief detail of new technologies in smart grid systems for its power distribution systems, benefits and recent challenges. The paper provides a brief detail for new researchers and engineers about new technologies in smart grid systems and how to change traditional distribution systems into new smart systems.
最近,人们一直在讨论电力+配电系统的作用,以及未来智能电网在电力系统中的应用。智能电网和配电系统新技术的出现,在减少商业和技术损失、提高电价合理化方面带来了重大变化。智能电网系统中的新技术对提高配电系统的技术效率具有不同的作用。这些新技术是解决电力系统问题的可预见的解决方案。本文简要介绍了智能电网系统的新技术及其对配电系统的好处和当前面临的挑战。本文为新的研究人员和工程师提供了有关智能电网系统新技术以及如何将传统配电系统转变为新的智能系统的简要细节。
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引用次数: 9
Research on the Glass Silicon Anodic Direct Bonding Parameters 玻璃硅阳极直接键合参数的研究
Pub Date : 2015-11-01 DOI: 10.11591/tijee.v16i2.1615
Jia Li, Guo Hao, G. Zhiping, Miao Shujing
By MEMS packaging test platform for bonding process of bonding temperature and bonding time,and test silicon specifications experimental study.Firstly,according to the anodic bonding principle,the main factors to detemine the effect of bonding quality.Secodly,change the bonding temperature,bonding time,and test wafer size and other parameters,glass silicon bonding contrast test.Finally,the calculation and analysis of comparative test of each group is bonded porosity,summanrized the factors that affect the quality of the bonding and bonding to achieve the best results in the bonding conditions.Experimental results indicate that when the bonding voltage of 1200V,bonding temperature of 445-455c,bonding time is 60s,the void fractin is less than 5%.Glass and Silicon wafer bonding quality can achieve the best. The experimental results in order to improve the glass silicon bonding quaity provides the basis.
通过MEMS封装测试平台对键合过程中的键合温度和键合时间进行了研究,并对测试硅片的规格进行了实验研究。首先根据阳极键合原理,确定影响键合质量的主要因素。其次,改变键合温度、键合时间以及测试晶圆尺寸等参数,对玻璃硅进行键合对比测试。最后,通过对比试验对每组粘结物的孔隙率进行计算和分析,总结出影响粘结质量的因素,并在粘结条件下取得最佳粘结效果。实验结果表明,当键合电压为1200V,键合温度为445 ~ 455c,键合时间为60s时,孔隙率小于5%。玻璃与硅片的键合质量可以达到最佳。实验结果为提高玻璃硅键合质量提供了依据。
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引用次数: 0
Transient Analysis of the Self Excited Induction Generator Subjected to Grid Disturbances 电网扰动下自激感应发电机的暂态分析
Pub Date : 2015-11-01 DOI: 10.11591/IJEECS.V16.I2.PP199-206
Malika Imadouchene
The present paper analyzes the consequences of short grid voltages interruptions on grid-connected self-induction generator, particularly, on the currents and electromagnetic torque of the generator. These effects depend on several variables such as the phase difference between the grid voltages and those of the generator, the magnitude of the grid voltage and the generator currents at the instant of reconnection to the grid. The approach has been used for studying the effects of these grid disturbances on the self-excited induction generator; is a numerical approach. In the numerical approach, which is based on the dynamic d-q model of the induction generator, the effect of magnetic saturation is accurately accounted for. This numerical model has been validated by experimental measurements taken from an induction generator test bench. The analysis focuses on the amplitudes of the peaks of the currents and torque during short interruptions especially at the reconnection of the grid voltage. The results obtained from the numerical model are compared to the measured ones.
本文分析了电网短电压中断对并网自感发电机的影响,特别是对发电机的电流和电磁转矩的影响。这些影响取决于几个变量,如电网电压和发电机电压之间的相位差、电网电压的大小以及重新连接到电网时发电机的电流。该方法已用于研究这些电网扰动对自激感应发电机的影响;是一种数值方法。在基于感应发电机动态d-q模型的数值方法中,准确地考虑了磁饱和的影响。该数值模型已通过感应发电机试验台的实验测量得到验证。分析的重点是短时中断,特别是电网电压重连时的电流和转矩峰值幅值。数值模拟结果与实测结果进行了比较。
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引用次数: 2
Radar Target Characteristics Extraction using Polarization Scattering Matrix 利用极化散射矩阵提取雷达目标特征
Pub Date : 2015-11-01 DOI: 10.11591/IJEECS.V16.I2.PP308-315
L. Lakshmi, A. Lakshmi, Munesh Kumar, P. S. Kumar
Now a day’s characterization of targets using radar is very important in Air Traffic Control, Defense, and Stealth etc.  In order to know the characteristics of the target it is very essential to know the polarization properties of that particular target which depends upon scattering nature of the target.  The polarization properties are important for radar target besides amplitude, phase and frequency. The polarization may be potentially used to improve target detection, anti-interference, and radar target recognition. Polarization properties of a target can be obtained using polarization scattering matrix (PSM). In this paper the polarization matrix of various geometrical shapes are derived.  For radar target recognition (RTR), a method using properties of the polarization scattering matrix (PPSM) is presented in this paper. A dipole has been considered to calculate the polarization matrix and polarization properties. The properties of the polarization scattering matrix: the determinant, Trace of Power Scattering Matrix, Depolation, Eigen polarization angle and Module of Polarization Ellipticity are analyzed. These properties are analyzed for different orientation angles of the targets.
如今,利用雷达对目标进行表征在空中交通管制、防御和隐身等领域非常重要。为了了解目标的特性,有必要了解特定目标的偏振特性,这取决于目标的散射特性。极化特性对雷达目标除振幅、相位和频率外,还有重要意义。偏振可能潜在地用于改进目标探测、抗干扰和雷达目标识别。利用偏振散射矩阵(PSM)可以得到目标的偏振特性。本文推导了各种几何形状的偏振矩阵。针对雷达目标识别问题,提出了一种利用偏振散射矩阵特性进行目标识别的方法。采用偶极子计算极化矩阵和极化特性。分析了偏振散射矩阵的行列式、功率散射矩阵的迹线、去polation、本征偏振角和偏振椭圆度模的性质。分析了不同定向角度下目标的这些特性。
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引用次数: 14
Performance Analysis of Various Phases of SRM with Classical and New Compact Converter 经典和新型紧凑型变换器SRM各相位性能分析
Pub Date : 2015-11-01 DOI: 10.11591/tijee.v16i2.1610
S.M. Mohamed Saleem, L. Senthil Murugan
In recent years, considerable attention has been given to find the compact and low cost power converter topology for Switched Reluctance Motor (SRM) drive to meet the emerging applications such as plotters, fans, pumps, screw rotary compressor drives, high speed application drives above 30,000 RPM. This paper is concerned with such as attempt to formulate a new compact power converter for SRM drive. The proposed power converter has reduced number of power electronic components which makes the converter compact and also reduce the switching losses. The power factor plays a vital issue in the usage of power electronic converters. The power boost converter and PI controller. A Simulink system is developed for 3Φ SRM by using MATLAB software. The proposed converter performance is compared with the classical converter and analysis results are presented.
近年来,为了满足绘图仪、风扇、泵、螺杆旋转压缩机驱动、30,000 RPM以上的高速应用驱动等新兴应用,为开关磁阻电机(SRM)驱动寻找紧凑、低成本的电源转换器拓扑受到了相当大的关注。本文讨论了研制一种新型的小型SRM驱动功率变换器的尝试。所提出的功率变换器减少了电力电子元件的数量,使变换器结构紧凑,也降低了开关损耗。功率因数在电力电子变换器的使用中起着至关重要的作用。功率升压转换器和PI控制器。利用MATLAB软件开发了3Φ SRM的Simulink系统。将该变换器的性能与传统变换器进行了比较,并给出了分析结果。
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引用次数: 0
期刊
TELKOMNIKA Indonesian Journal of Electrical Engineering
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