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An experience-based method for personalized routing 基于经验的个性化路由方法
IF 4.9 2区 工程技术 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-03-16 DOI: 10.53710/jcode.1236875
Özlem Çavuş, Ş. Cenani̇, G. Çağdaş
Navigation devices that are tailored to the user's preferences offer personalized routes. When multiple users are involved, it can be hard to find a route that suits everyone's preferences and avoid conflicting interests. A decision support system can improve the quality of user decisions. Traditional systems typically consider only the predefined preferences of one user or a group with similar preferences. This study aims to develop a decision support system for a group of people with diverse preferences, using a method that considers their experiences regarding time and space. The method utilizes IoT, agent-based modeling, multi-objective optimization, and crowdsourced data to create a personalized navigation system for a group, such as a family car, that considers each group member's preferences. The study uses simulation to demonstrate how this method can be applied, and it is created using Grasshopper for Rhino and add-ons. The main original contribution of this research is to show how social aspects can be incorporated into personalized navigation systems for a heterogeneous group. The major challenge was the data-sharing policies.
根据用户喜好定制的导航设备可以提供个性化的路线。当涉及多个用户时,很难找到适合每个人偏好并避免利益冲突的路线。决策支持系统可以提高用户决策的质量。传统系统通常只考虑具有相似偏好的一个用户或一个组的预定义偏好。本研究的目的是为具有不同偏好的人群开发一个决策支持系统,使用一种考虑他们在时间和空间方面的经验的方法。该方法利用物联网、基于代理的建模、多目标优化和众包数据,为家庭用车等群体创建个性化导航系统,并考虑每个群体成员的偏好。该研究使用仿真来演示如何应用该方法,并使用Grasshopper为Rhino和附加组件创建了该方法。本研究的主要原创性贡献在于展示了如何将社会方面纳入针对异质群体的个性化导航系统。主要的挑战是数据共享政策。
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引用次数: 0
A novel binary-addition simplified swarm optimization for generalized reliability redundancy allocation problem 针对广义可靠性冗余分配问题,提出了一种新的二元加法简化群优化算法
IF 4.9 2区 工程技术 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-03-15 DOI: 10.1093/jcde/qwad021
Yunzhi Jiang, Zhenyao Liu, Jen-Hsuan Chen, W. Yeh, Chia-Ling Huang
Network systems are commonly used in various fields, such as power grids, Internet of Things, and gas networks. The reliability redundancy allocation problem is a well-known reliability design tool that needs to be developed when the system is extended from a series-parallel structure to a more general network structure. Therefore, this study proposes a novel reliability redundancy allocation problem, referred to as the general reliability redundancy allocation problem, to be applied in network systems. Because the general reliability redundancy allocation problem is NP-hard, a new algorithm referred to as binary-addition simplified swarm optimization is proposed in this study. Binary-addition simplified swarm optimization combines the accuracy of the Binary Addition Tree Algorithm with the efficiency of Simplified Swarm Optimization, which can effectively reduce the solution space and speed up the time required to find high-quality solutions. The experimental results show that binary-addition simplified swarm optimization outperforms three well-known algorithms: the Genetic Algorithm, Particle Swarm Optimization, and Simplified Swarm Optimization in high-quality solutions and high stability on six network benchmarks.
网络系统广泛应用于各种领域,如电网、物联网、燃气网络等。可靠性冗余分配问题是系统从串并联结构扩展到更一般的网络结构时需要开发的一个众所周知的可靠性设计工具。因此,本研究提出了一种新的可靠性冗余分配问题,即一般可靠性冗余分配问题,并将其应用于网络系统。由于一般的可靠性冗余分配问题是np困难的,本文提出了一种新的算法——二元加法简化群优化算法。二叉加法简化群优化将二叉加法树算法的精度与简化群优化的效率相结合,可以有效地缩小解空间,加快寻找高质量解所需的时间。实验结果表明,在6个网络基准测试中,二元相加简化群优化算法在高质量解和高稳定性方面优于遗传算法、粒子群优化算法和简化群优化算法。
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引用次数: 5
Swirling flow analysis of Eyring-Powell fluid between coaxial disks with variable property 变性质同轴盘间Eyring-Powell流体的旋流分析
IF 4.9 2区 工程技术 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-03-14 DOI: 10.1093/jcde/qwad015
S Nadeem, Bushra Ishtiaq, Nevzat Akkurt, S. M. Eldin
The main objective of this study is to examine an unsteady swirling flow of a non-Newtonian Eyring-Powell fluid between two coaxial disks. The lower and upper disks are considered to rotate with different angular velocities. The three-dimensional axisymmetric flow phenomenon and heat transfer mechanism are observed with the consequences of the magnetic field and variable thermal conductivity of the fluid. The variable thermal conductivity is taken to be dependent on the fluid temperature. The implementation of the von Karman similarity transformations on the constituting equations of the flow phenomenon yields the dimensionless system of the nonlinear equations. An optimal homotopy analysis technique is adopted to obtain analytical solutions for highly nonlinear equations. In view of the same and opposite directions of disks rotation, the various aspects of the flow system corresponding to the pertinent parameters are discussed with physical significance. The obtained results indicate that both radial and axial fields are the escalating functions of the Eyring-Powell fluid parameter. Moreover, the heat transfer rate enhances with the improving variable thermal conductivity parameter.
本研究的主要目的是研究非牛顿埃灵-鲍威尔流体在两个同轴圆盘之间的非定常旋转流动。上下盘被认为以不同的角速度旋转。观察了三维轴对称流动现象和传热机理与磁场和变导热流体的结果。可变热导率被认为与流体温度有关。对流动现象的构成方程进行von Karman相似变换,得到非线性方程的无量纲系统。采用最优同伦分析方法求解高度非线性方程的解析解。针对圆盘旋转方向相同和相反的情况,讨论了相应参数所对应的流动系统的各个方面,具有物理意义。结果表明,径向场和轴向场都是Eyring-Powell流体参数的递增函数。随着变导热系数参数的提高,换热率也随之提高。
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引用次数: 0
Hybridizing gaining-sharing knowledge and differential evolution for large-scale power system economic dispatch problems 大型电力系统经济调度问题的混合增益共享知识与差分演化
IF 4.9 2区 工程技术 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-03-10 DOI: 10.1093/jcde/qwad008
Qinghua Liu, Guojiang Xiong, Xiaofan Fu, A. W. Mohamed, Jing Zhang, M. Al-Betar, Haoming Chen, Jun Chen, Shengping Xu
Economic dispatch (ED) of thermal power units is significant for optimal generation operation efficiency of power systems. It is a typical nonconvex and nonlinear optimization problem with many local extrema when considering the valve-point effects, especially for large-scale systems. Considering that differential evolution (DE) is efficient in locating global optimal region, while gain-sharing knowledge-based algorithm (GSK) is effective in refining local solutions, this study presents a new hybrid method, namely GSK-DE, to integrate the advantages of both algorithms for solving large-scale ED problems. We design a dual-population evolution framework in which the population is randomly divided into two equal subpopulations in each iteration. One subpopulation performs GSK, while the other executes DE. Then, the updated individuals of these two subpopulations are combined to generate a new population. In such a manner, the exploration and the exploitation are harmonized well to improve the searching efficiency. The proposed GSK-DE is applied to six ED cases, including 15, 38, 40, 110, 120, and 330 units. Simulation results demonstrate that GSK-DE gives full play to the superiorities of GSK and DE effectively. It possesses a quicker global convergence rate to obtain higher quality dispatch schemes with greater robustness. Moreover, the effect of population size is also examined.
火电机组的经济调度对实现电力系统的发电效率优化具有重要意义。当考虑阀点效应时,特别是对于大型系统,这是一个典型的具有许多局部极值的非凸非线性优化问题。考虑到差分进化(DE)算法在寻找全局最优区域方面效率高,而基于增益共享知识的算法(GSK)在优化局部解方面效率高,本研究提出了一种新的混合方法,即GSK-DE,以整合两种算法的优点来解决大规模ED问题。我们设计了一个双种群进化框架,在该框架中,种群在每次迭代中随机分为两个相等的子种群。一个亚种群执行GSK,另一个亚种群执行DE,然后将这两个亚种群更新后的个体组合成一个新的种群。这样可以很好地协调勘探和开发,提高搜索效率。建议GSK-DE适用于6个ED案例,包括15、38、40、110、120和330单元。仿真结果表明,GSK-DE有效地发挥了GSK和DE的优势。该算法具有更快的全局收敛速度,可获得更高质量的调度方案,具有更强的鲁棒性。此外,还考察了种群规模的影响。
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引用次数: 2
Fabrication, design, and optimization of hierarchical composite Kagome honeycomb sandwich structure under uniaxial compression 单轴压缩下分层复合材料Kagome蜂窝夹层结构的制备、设计与优化
IF 4.9 2区 工程技术 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-03-10 DOI: 10.1093/jcde/qwad026
Shijun Song, Chao Xiong, Junhui Yin, Zhaoshu Yang, Lu Wang
In this study, a hierarchical composite Kagome honeycomb sandwich (HCKHS) structure was manufactured based on the interlocking method, and its uniaxial compression performance was explored. Through experiments, the compressive strength, stiffness, energy absorption, and failure process of HCKHS specimens of seven different sizes were determined and compared. Mechanical analytical models were established, and the variation trend in the specific strength was predicted and compared with those of other advanced sandwich structures. The size effect of the HCKHS specimens was analyzed. The influence of a single variable on the core modulus, failure strength, and failure modes was discussed, and failure mechanism maps were drawn. The structure was optimized based on the maximum specific strength and engineering application, and the optimal size design ratio was obtained. The results showed that the HCKHS specimens exhibited excellent compressive properties with a convenient manufacturing process, making them suitable for lightweight applications in engineering. The optimization ideas presented herein are also applicable to other two-dimensional hierarchical or normal composite honeycomb sandwich structures with diamond, triangular, and hexagonal shapes.
基于互锁方法制备了层叠复合材料Kagome蜂窝夹层(HCKHS)结构,并对其单轴压缩性能进行了研究。通过试验,对7种不同尺寸HCKHS试件的抗压强度、刚度、能量吸收和破坏过程进行了测定和比较。建立了力学分析模型,预测了其比强度的变化趋势,并与其他先进夹层结构进行了对比。分析了HCKHS试样的尺寸效应。讨论了单一变量对岩心模量、破坏强度和破坏模式的影响,并绘制了破坏机理图。基于最大比强度和工程应用对结构进行了优化,得到了最优尺寸设计比。结果表明,HCKHS试样具有优异的抗压性能,且制作工艺方便,适合工程轻量化应用。本文提出的优化思路同样适用于其他二维分层或正态的菱形、三角形和六边形复合蜂窝夹层结构。
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引用次数: 1
Vector-valued envelope functions for constructing tool swept surfaces in continuous domains 构造连续域中刀具扫掠曲面的向量值包络函数
IF 4.9 2区 工程技术 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-03-10 DOI: 10.1093/jcde/qwad022
E. Aras
This paper proposes the vector-valued envelope functions to describe form cutters’ swept profiles at the choice of particular motion instances. The general idea behind such a formulation is to embed the tangency constraint into the tool surface expression and form a single continuous function to describe the segmental curves whose elements lie on the envelopes. This results in skipping unnecessary calculations when no envelope-surface point is associated with the specified input data, reducing the sizeable computational burden due to repetitive constraint implementations, and most importantly, depending on the tool kinematics’ complexity, avoiding the tangency-constraint violations between successive envelope-surface points where the exact fit cannot be obtained. In this study, firstly, the NC tool surface models present in extant literature have been restructured using the four-parameter set of spheres to attain the required one-to-one correspondence between the domain and range sets of these functions, followed by excluding the tangency-constraint evaluations by introducing the systematic parameter-reduction procedures that led to the development of constraint-embedded envelope functions. Next, we introduced the branch-existence test, which allowed us to check whether these functions are continuous over closed domain intervals. Finally, we covered algorithms for implementing the functions.
本文提出了矢量值包络函数来描述刀具在选择特定运动实例时的扫掠轮廓。这种公式背后的一般思想是将切线约束嵌入到工具表面表达式中,并形成单个连续函数来描述其元素位于包络上的分段曲线。当没有包络面点与指定的输入数据相关联时,这可以跳过不必要的计算,减少了由于重复约束实现而产生的相当大的计算负担,最重要的是,根据工具运动学的复杂性,避免了连续包络面点之间的切线约束违规,从而无法获得精确的拟合。在本研究中,首先,利用球体的四参数集对现有文献中的数控刀具表面模型进行重构,以获得这些函数的域集和范围集之间所需的一对一对应关系,然后通过引入导致约束嵌入包络函数发展的系统参数约简程序来排除切线约束评估。接下来,我们介绍了分支存在性测试,它允许我们检查这些函数在闭域区间上是否连续。最后,我们介绍了实现这些函数的算法。
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引用次数: 1
Mekânsal Algının Görsel Temsil ve Yazılı Anlatı Üzerinden Ölçülmesi
IF 4.9 2区 工程技术 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-03-08 DOI: 10.53710/jcode.1233517
N. Sipahioğlu, Ethem Gürer
Mimari tasarımda görsel düşünme ve algı önemlidir. Tasarım sürecinin görsel temsiller üzerinden ilerlemesi ve bu temsillerin mekânın gerçekleştirilmesinde kullanılması görselliğe verilen önemi artırmaktadır. Ancak mimari tasarım sadece görsellik ile sınırlı kalmamalıdır. Çizimlerin yanı sıra yazılı ve sözlü anlatı da görev almaktadır. Mekânsal algı, görsel temsil ve anlatıyla şekillenir. Mekânın görsel temsilleri ben-merkezli veya dış-merkezli olabileceği gibi, görme biçimlerinin zenginliği sayesinde mekân daha farklı temsil edilebilir. Bu yönüyle görsel temsil, mekânı anlamak ve açıklamak için bir araç haline gelmektedir. Ancak mekânı tanımlarken ya da anlamaya çalışırken sadece görmek yeterli olmayabilir. Dil ile iletişim kurmaya alışkın olan insan doğal olarak sözel anlatıma başvurur. Görme, çevremizdeki dünyayla iletişim kurdukça gelişmişken dil, insanların birbirleriyle iletişim kurmak için geliştirdikleri sosyal bir sistemdir. Mekân algısı üzerine yapılan araştırmalar çoğunlukla görsel düşünme açısından ele alınmıştır. Ancak görme ve dil, mekâna ilişkin farklı bilgilere ulaşmayı sağlar. Görme ve dil yoluyla toplanan bilgilerdeki çeşitlilik, mimari mekânın zihinsel imgesini tamamlayabilir. Bu çalışmanın amacı, mekânsal algının oluşumunu görsel ve sözel temsiller aracılığıyla incelemektir. Çalışma, mekân algısının sadece görme duyusuna dayandırılmasının kısıtlayıcı olduğu ve algının hem görsel temsilden hem de sözel anlatımdan etkilendiği görüşüne dayanmaktadır. Çalışmada öne sürülen, görsel ve sözel temsillerin birbirini desteklediği ve böylece mekânsal algıyı güçlendirdiğidir. Bu çalışmada anlatının görsel temsili nasıl etkilediğini ve görsel temsil ile anlatı arasındaki bu etkileşimin uzamsal algıyı nasıl şekillendirdiğini ortaya çıkarmak için protokol analizleri yapılmıştır. Çalışmanın sonucu mekân algısının oluşumunda anlatı ve görsel temsil arasındaki ilişkiye olumlu işaret vermektedir, ancak bireysel farklılıkların etkisiyle ortaya çıkan durumları göz önüne alarak daha tanımlı deneylerle ortaklıklar desteklenebilir.
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引用次数: 0
Mindfulness (Bilinçli Farkındalık) Metodu Kullanarak İleri Temsil Teknikleri Geliştirilmesine Yönelik Bir Çalışma
IF 4.9 2区 工程技术 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-03-07 DOI: 10.53710/jcode.1231117
Zeynep Bi̇rgönül, Merve Öksüz
“SELF.SAFE.SPACE” projesi, “İleri Temsil Teknikleri” seçmeli dersi kapsamında 15 öğrenci tarafından, bir akademik yarıyılda, 2 öğretim elemanı rehberliğinde geliştirilmiştir. Projenin amacı, bilinçli farkındalık yöntemlerinin pratiğiyle tasarım ve görselleştirmede yaratıcılık becerilerini artırmaktır. Dönem boyunca, öğrencinin hem geleneksel hem de dijital görselleştirme araçlarını birbiriyle harmanlayarak kullandığı ve kişisel temsil yöntemlerini keşfederek, yaratıcılığın üst sınırlarına ulaşmasına olanak tanıyan deneysel bir öğrenme prosedürü izlenmiştir. Stüdyo metodolojisi, öğrencilerin tasarım kabiliyetini, modelleme ve görselleştirme yazılımının kullanımını ve bu eksende bilişsel, beceriye dayalı ve duygusal sonuçlar geliştirmeye dayanmaktadır. Proje, öğrencilerin güvenli alan imgeleme egzersizi sonucunda oluşturdukları ütopik ve özel bir yerin yaratılmasını ve ileri anlatım teknikleriyle görselleştirilmesini hedeflemiştir. Bilinçli farkındalık egzersizleri katılımcılar tarafından ders içerisinde ve haftalık ders aralarında gönüllü olarak uygulanmıştır. Araştırmacıların gözlemlerine göre farkındalık ve dikkat düzeyleri ile yaratıcılık ölçümlerinin her hafta arttığı dönem sonunda yapılan bireysel değerlendirme envanterleri ile de doğrulanmıştır. Projenin sonunda öğrenciler, uygulamanın sonuçlarını ve kişisel gelişimlerini sınıf içinde gönüllü olarak paylaşmış ve yorumlamışlardır. Farkındalık tekniklerini düzenli olarak uygulayan öğrenciler, kendi imgeleme alanlarını oluşturup görselleştirmiş ve yaratıcılıklarını artırmaya yönelik kişisel yolculuklarına dair sıra dışı yansımalar üretmiştir.
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引用次数: 0
Development of building information modeling-based automation assessment process for universal design of public buildings 基于建筑信息模型的公共建筑通用设计自动化评估流程开发
IF 4.9 2区 工程技术 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-03-07 DOI: 10.1093/jcde/qwad018
Eun-Lee Yu, Jungsik Choi
The aging population is growing drastically all over the world. With the advent of the global era, Universal Design is garnering considerable interest, as the number of multicultural families is increasing, and various user classes are being created. In addition, with the advances in construction technology, architectural design is becoming more diverse, and convenience facilities are also getting distributed in various ways. As a result, more buildings need to apply Universal Design, indicating that various architectural information and Universal Design for the user class are required. Various data are needed for Universal Design evaluation, but there is a limit to evaluating with two-dimensional (2D) drawings. However, the limitations of 2D drawings can be overcome via building information modeling (BIM) combined with architectural data, which remarkably simplifies the Universal Design evaluation. This study was conducted with the aim to analyze architectural information by extracting architectural elements necessary for Universal Design evaluation from BIM data. It was confirmed that the calculations for Universal Design evaluation can be performed by 3D shape or attribute analysis using BIM data and computer programming. In order to create an automated evaluation algorithm for Universal Design, the evaluation methods were classified according to the Universal Design evaluation guide, based on building users and user diversity. In addition, even if the evaluation methods were the same by location, different points were classified by location, and evaluation items and information necessary for the evaluation were organized by category for each facility. Through this classification, we created an algorithm with seven types of methods for extracting the BIM data and comparing them by evaluation method for an automated analysis. In addition, an analysis was performed directly on the BIM design sample model using an automated evaluation algorithm. Although there were various architectural objects in the design data, evaluation was possible using algorithms. By applying the Universal Design evaluation and BIM data evaluation methods, we could confirm that the BIM-based Universal Design automation evaluation method prevents human error and is thus superior to the existing evaluation methods. Further, the automation evaluation method can contribute to BIM activation as the BIM data can be used in various studies such as design certification evaluation and automation analysis.
世界各地的老龄化人口正在急剧增长。随着全球化时代的到来,随着多元文化家庭的增加和各种用户阶层的产生,通用设计正在引起人们的极大兴趣。此外,随着建筑技术的进步,建筑设计越来越多样化,便利设施也以各种方式分布。因此,更多的建筑需要应用通用设计,这表明需要各种建筑信息和用户类的通用设计。通用设计评估需要各种数据,但使用二维(2D)图纸进行评估是有限制的。然而,2D图纸的局限性可以通过建筑信息模型(BIM)与建筑数据相结合来克服,这极大地简化了通用设计的评估。本研究旨在通过从BIM数据中提取通用设计评估所需的建筑元素来分析建筑信息。验证了通用设计评估的计算可以通过使用BIM数据和计算机编程进行三维形状或属性分析来完成。为了建立通用设计的自动化评价算法,根据通用设计评价指南,基于建筑用户和用户多样性对评价方法进行了分类。此外,即使评价方法按地点相同,也按地点分类不同的点,对每个设施按类别组织评价所需的评价项目和信息。通过这种分类,我们创建了一个包含七种方法的算法,用于提取BIM数据,并通过评估方法对它们进行比较,以进行自动化分析。此外,使用自动评估算法直接对BIM设计样本模型进行分析。尽管在设计数据中有各种各样的体系结构对象,但是使用算法进行评估是可能的。通过应用通用设计评估和BIM数据评估方法,我们可以确认基于BIM的通用设计自动化评估方法可以防止人为错误,从而优于现有的评估方法。此外,自动化评估方法可以促进BIM的激活,因为BIM数据可以用于各种研究,如设计认证评估和自动化分析。
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引用次数: 0
Bir Tasarım Araştırması Olarak Eğrisel Çizgiyi Araçlaştırmak
IF 4.9 2区 工程技术 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2023-03-06 DOI: 10.53710/jcode.1246451
Çağın Çeti̇n
Mimari temsilde araç ile yapma biçimi | yol | yordam arasındaki doğrudan bağlantı mimari temsilde eğriselliğin olanaklarında yaratıcı bir alan açabilir mi sorusuyla başlayan bu çalışma eğriselliği üretmek için kullanılan yol ve araç çeşitliliğinin ve potansiyellerini araştırmaktadır. Temsil yönteminin, üretildiği konjonktürün araç, teknoloji ve düşünce yapısıyla şekillendiği öne sürülmektedir. Eğrisel çizginin analog araçlarını üretme, test etme ve değerlendirme ekseninde gelişen çalışmanın yöntemi tasarım yoluyla araştırma (TYA) olarak belirlenmiştir. Çalışma, eğriseli üreten analog araçların olanaklarını araştırarak hareket ve zamanla ortaya çıkan unsurları görebilme alışkanlığı kazanmayı amaçlamaktadır.
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引用次数: 0
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Journal of Computational Design and Engineering
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