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| 1 | Artificial Neural Network Methods for the Solution of Second Order Boundary Value Problems显示文摘We present a method for solving partial differential equations using artificial neural networks and an adaptive collocation strategy.In this procedure,a coarse grid of training points is used at the initial training stages,while more points are added at later stages based on the value of the residual at a larger set of evaluation points.This method increases the robustness of the neural network approximation and can result in significant computational savings,particularly when the solution is non-smooth.Numerical results are presented for benchmark problems for scalar-valued PDEs,namely Poisson and Helmholtz equations,as well as for an inverse acoustics problem. | Cosmin Anitescu Elena Atroshchenko Naif Alajlan Timon Rabczuk | 2019 | Computers, Materials & Continua2019，，4： | 72 |
| 2 | San copolymer membranes with ion exchangers for Cu(Ⅱ)removal from synthetic wastewater by electrodialysis显示文摘Heterogeneous membranes were obtained by using styrene-acrylonitrile copolymer(SAN)blends with low content of ion-exchanger particles(5 wt.%). The membranes obtained by phase inversion were used for the removal of copper ions from synthetic wastewater solutions by electrodialytic separation. The electrodialysis was conducted in a three cell unit, without electrolyte recirculation. The process, under potentiostatic or galvanostatic control, was followed by p H and conductivity measurements in the solution. The electrodialytic performance,evaluated in terms of extraction removal degree(rd) of copper ions, was better under potentiostatic control then by the galvanostatic one and the highest(over 70%) was attained at8 V. The membrane efficiency at small ion-exchanger load was explained by the migration of resin particles toward the pores surface during the phase inversion. The prepared membranes were characterized by various techniques i.e. optical microscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetric analysis and differential thermal analysis and contact angle measurements. | Simona Caprarescu Mihai Cosmin Corobea Violeta Purcar Catalin Ilie Spataru Raluca Ianchis Gabriel Vasilievici Zina Vuluga | 2015 | Journal of Environmental Sciences2015，27，9： | 8 |
| 3 | Optimizing the neural network hyperparameters utilizing genetic algorithm显示文摘Neural networks(NNs),as one of the most robust and efficient machine learning methods,have been commonly used in solving several problems.However,choosing proper hyperparameters(e.g.the numbers of layers and neurons in each layer)has a significant influence on the accuracy of these methods.Therefore,a considerable number of studies have been carried out to optimize the NN hyperpaxameters.In this study,the genetic algorithm is applied to NN to find the optimal hyperpaxameters.Thus,the deep energy method,which contains a deep neural network,is applied first on a Timoshenko beam and a plate with a hole.Subsequently,the numbers of hidden layers,integration points,and neurons in each layer are optimized to reach the highest accuracy to predict the stress distribution through these structures.Thus,applying the proper optimization method on NN leads to significant increase in the NN prediction accuracy after conducting the optimization in various examples. | Saeid NIKBAKHT Cosmin ANITESCU Timon RABCZUK | 2021 | Journal of Zhejiang University-Science A(Applied Physics & Engineering)2021，22，6： | 5 |
| 4 | High velocity impact of metal sphere on thin metallic plate using smooth particle hydrodynamics(SPH)method显示文摘The modeling of high velocity impact is an important topic in impact engineering.Due to various constraints,experimental data are extremely limited.Therefore,detailed numerical simulation can be considered as a desirable alternative.However,the physical processes involved in the impact are very sophisticated;hence a practical and complete reproduction of the phenomena involves complicated numerical models.In this paper,we present a smoothed particle hydrodynamics(SPH)method to model two-dimensional impact of metal sphere on thin metallic plate.The simulations are applied to different materials(Aluminum,Lead and Steel);however the target and projectile are formed of similar metals.A wide range of velocities(300,1000,2000,and 3100 m/s)are considered in this study.The goal is to study the most sensitive input parameters(impact velocity and plate thickness)on the longitudinal extension of the projectile,penetration depth and damage crater. | Hossein ASADI KALAMEH Arash KARAMALI Cosmin ANITESCU Timon RABCZUK | 2012 | Frontiers of Structural and Civil Engineering2012，6，2： | 4 |
| 5 | Obtaining of monodisperse particles through soap-free polymerization in the presence of C60显示文摘 | Edina R Alexandra M Cosmin C | | 0，，： | 1 |
| 6 | Competitive interactionsbetween aspen and white spruce vary with stand age in borealmixed woods显示文摘 | Cosmin N Filipescu Philip G C | 2007 | Forest Ecology and Management2007，247，： | 1 |
| 7 | Approximate yield criteria tor anisotropic metals with prolate or oblate voids 显示文摘 | VINCENT MONCHIET COSMIN GRUESCU ERIC CHARKALUK | 2006 | Comptes Rendus Mecanique2006，334，7： | 1 |
| 8 | In vitro hepatic differentiation of human bone marrow mesenchymal stem cells under differential exposure to liver-specific factors显示文摘 | Mihaela Chivu Simona O. Dima Cosmin I. Stancu Camelia Dobrea Valentina Uscatescu Laura G. Necula Coralia Bleotu Cristiana Tanase Radu Albulescu Carmen Ardeleanu Irinel Popescu | 2009 | Translational Research2009，，3： | 1 |
| 9 | Noninvasive detection of fetal trisomy 21 by sequencing of DNA in maternal blood: a study in a clinical setting显示文摘 | Mathias Ehrich Cosmin Deciu Tricia Zwiefelhofer John A. Tynan Lesley Cagasan Roger Tim Vivian Lu Ron McCullough Erin McCarthy Anders O.H. Nygren Jarrod Dean Lin Tang Don Hutchison Tim Lu Huiquan Wang Vach Angkachatchai Paul Oeth Charles R. Cantor Allan Bo | 2011 | American Journal of Obstetrics and Gynecology2011，，3： | 1 |
| 10 | In vitro hepatic differentiation of human bone marrow mesenchymal stem cells under differential exposure to liver-specific factors显示文摘 | Mihaela C Simona OD Cosmin IS | 2009 | Translational Research2009，154，： | 1 |
| 11 | Multifocus image fusion and denoising: a variational approach显示文摘 | Cosmin L and Olivier L | 2012 | Pattern Recognition Letters2012，33，10： | 1 |
| 12 | 基于PHT-样条加强等几何分析配置方法显示文摘结合传统等几何分析配置法和传统等几何分析伽辽金法,提出一种基于PHT-样条函数的加强等几何分析配置方法.对于一个偏微分方程问题,基于具有局部细分特性的PHT-样条基础函数,应用传统等几何分析配置法在问题域内配置点定义线性方程组,并应用传统等几何分析伽辽金法施加边界条件,以保证多片结构连接的稳定;再将2组线性方程组及施加的边界条件合成一个整体系统.实例计算结果表明,该方法既具有配置法固有的计算效率高的优点,又改善了边界计算出现的不稳定问题,可有效地用于局部细分和多片结构的计算. | 贾悦 Cosmin Anitescu Yongjie Jessica Zhang 徐岗 李春 Timon Rabczuk | 2018 | 计算机辅助设计与图形学学报2018，30，4： | 1 |
| 13 | Westenberg Contour and boundary detection improved by surround suppression of texture edges显示文摘 | COSMIN G NICOLAI P MICHEL A | 2004 | Image and Vision Computing2004，22，： | 1 |
| 14 | Distance set for shape filters and shape recognition显示文摘 | Cosmin Grigorescu | 2003 | IEEE Transactions on Image Processing2003，12，10： | 1 |
| 15 | Fuel property effects on PC-CI combustion in a heavy-duty diesel engine显示文摘 | Cosmin E Dumitrescu W S N H | 2012 | American Soci-ety of Mechanical Engineers2012，134，52： | 1 |
| 16 | Baer and Quasi Baer Modules显示文摘 | Tariq Rizvi S Roman Cosmin S | 2004 | Comm Algebra2004，32，1： | 1 |
| 17 | A novel fuzzy classification solution for fault diagnosis显示文摘 | Cosmin D B Jose S D C Vasile P | 2004 | Journal of Intelligent & Fuzzy System2004，15，： | 1 |
| 18 | Reference values of aortic pulse wave velocity in the elderly 显示文摘 | Cosmin Aleeu Carlos Labat Anna Kearney-Sehwartz | 2008 | Journal of Hypertension2008，26，： | 1 |
| 19 | Contour and boundary detection improved by surround suppression of texture edges显示文摘 | Cosmin Grigorescu Nicolai Petkov Michel A. Westenberg | 2003 | Image and Vision Computing2003，，8： | 1 |
| 20 | - In vitro hepatic dif- ferentiation othuman bonemarrowmesenchymal stem cells under differential exposure to liver - specific factors 显示文摘 | Mihaela C Simona OD Cosmin IS | 2009 | Translational Research2009，154，： | 1 |
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