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두개의 목적함수를 가지는 다목적 최적설계를 위한 적응 가중치법에 대한 연구
김일용(Il Yong Kim),Olivier de Weck Korean Society for Precision Engineering 2004 한국정밀공학회지 Vol.21 No.9
This paper presents a new method for bi-objective optimization. Ordinary weighted sum method is easy to implement, but it has two significant drawbacks: (1) the solution distribution by the weighted sum method is not uniform, and (2) the method cannot determine any solutions that reside in non-convex regions of a Pareto front. The proposed adaptive weighted sum method does not solve a multiobjective optimization in a predetermined way, but it focuses on the regions that need more refinement by imposing additional inequality constraints. It is demonstrated that the adaptive weighted sum method produces uniformly distributed solutions and finds solutions on non-convex regions. Two numerical examples and a simple structural problem are presented to verify the performance of the proposed method.
Three-Dimensional Lock and Key Colloids
Wang, Yu,Wang, Yufeng,Zheng, Xiaolong,Yi, Gi-Ra,Sacanna, Stefano,Pine, David J.,Weck, Marcus American Chemical Society 2014 JOURNAL OF THE AMERICAN CHEMICAL SOCIETY - Vol.136 No.19
<P>Colloids with well-defined multicavities are synthesized through the hydrolytic removal of silica cluster templates from organo-silica hybrid patchy particles. The geometry of the cavities stems from the originally assembled cluster templates, displaying well-defined three-dimensional symmetries, ranging from spherical, linear, triangular, tetrahedral, trigonal dipyramidal, octahedral, to pentagonal dipyramidal. The concave surface of the cavities is smooth, and the cavity shallowness and size can be varied. These particles with multicavities can act as “lock” particles with multiple “key holes”. Up to <I>n</I> “key” particles can self-assemble into the lock particles via depletion interaction, resulting in multivalent, site-specific, reversible, and flexible bonding.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/2014/jacsat.2014.136.issue-19/ja502699p/production/images/medium/ja-2014-02699p_0006.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/ja502699p'>ACS Electronic Supporting Info</A></P>