Compared with the conventional casting process, digital pattern-less casting technology has many advantages such as good machining accuracy, a short processing cycle, and low production cost. It is a new rapid manufac...Compared with the conventional casting process, digital pattern-less casting technology has many advantages such as good machining accuracy, a short processing cycle, and low production cost. It is a new rapid manufacturing technology for castings, integrated with CAD/CAM, casting, CNC machining and many other advanced technologies. With this digital casting technology, no pattern is needed for making molds; it is precise, f lexible, and green. Usually, art castings have complex structures and are made in small batches or even made in a single-piece, especially for large-sized art castings. So it has the shortcomings of high cost, low eff iciency and long time for making a pattern to produce art castings with the conventional casting processes. However, the digital pattern-less casting technology can be applied to fabricate art castings, since it can greatly shorten the manufacturing cycle and lower the production cost, thus having a very good prospect. In this study, based on the digital pattern-less casting technology, a plaque casting with artistic Chinese characters(a Chinese poem) was designed and manufactured, and the production process was demonstrated in detail.展开更多
In the paper, we conduct research on the development trend of art design patterns under the perspectives of interaction design and visual reconstruction. With the increasing of people’s living standard, people on the...In the paper, we conduct research on the development trend of art design patterns under the perspectives of interaction design and visual reconstruction. With the increasing of people’s living standard, people on the industrial product requirements are constantly increasing, industrial products have gradually become to meet people’s life comfortable, functional, aesthetic and cultural history of the pursuit of all kinds of needs and the carrier of many connotations it is because of these changes in art design. In this paper, we integrate the Bauhaus’ idea to construct the new idea of constructing the interaction design and visual reconstruction. To note here that includes both the facts to the reality of the fact that also includes the artistic truth, or “virtual reality experience such as writer”, sequence of works of art, etc., and the former is an artist biography, the object of art history. With these basis and references, we propose the new idea on the issues. The result is satisfactory.展开更多
ART Ⅱ网络以模式的相似性量度值为基础,能够对动态的输入模式样本进行自适应的聚类和识别,然而标准的ART Ⅱ网络在输入数据处理过程中,忽略了样本数据中的负数信息和幅值信息,造成信号畸变和"同相位不可分"问题,在权值调整...ART Ⅱ网络以模式的相似性量度值为基础,能够对动态的输入模式样本进行自适应的聚类和识别,然而标准的ART Ⅱ网络在输入数据处理过程中,忽略了样本数据中的负数信息和幅值信息,造成信号畸变和"同相位不可分"问题,在权值调整过程中,聚类中心发生移动,容易造成"模式漂移"现象。针对上述问题结合相关文献提出了引入非线性函数对输入数据进行变换的方法解决"同相位不可分"问题,用待测数据与同一模式类中有限数据的欧氏距离与限定值进行比较实现聚类判定,抑制"模式漂移"现象。用Matlab仿真表明,改进算法性能优于标准算法。展开更多
本文通过对传统的自适应共振网络(ART)的研究,分析了其优缺点及应用领域,在此基础上提出了一种适合训练样本数较少、样本特征值维数较高的图像目标分类的最小风险检测 ART 网络,并重点讨论了该网络在结构上的改进和运行原理,以及基于该...本文通过对传统的自适应共振网络(ART)的研究,分析了其优缺点及应用领域,在此基础上提出了一种适合训练样本数较少、样本特征值维数较高的图像目标分类的最小风险检测 ART 网络,并重点讨论了该网络在结构上的改进和运行原理,以及基于该网络的分类器的设计及其算法实现过程。通过对 ORL 人脸库和 Yale 人脸库的图像样本仿真结果表明,应用该分类方法进行人脸图像分类识别,同时获得了较高的分类速度和分类效果。展开更多
基金financially supported by the National Natural Science Foundation of China(No.51105257)
文摘Compared with the conventional casting process, digital pattern-less casting technology has many advantages such as good machining accuracy, a short processing cycle, and low production cost. It is a new rapid manufacturing technology for castings, integrated with CAD/CAM, casting, CNC machining and many other advanced technologies. With this digital casting technology, no pattern is needed for making molds; it is precise, f lexible, and green. Usually, art castings have complex structures and are made in small batches or even made in a single-piece, especially for large-sized art castings. So it has the shortcomings of high cost, low eff iciency and long time for making a pattern to produce art castings with the conventional casting processes. However, the digital pattern-less casting technology can be applied to fabricate art castings, since it can greatly shorten the manufacturing cycle and lower the production cost, thus having a very good prospect. In this study, based on the digital pattern-less casting technology, a plaque casting with artistic Chinese characters(a Chinese poem) was designed and manufactured, and the production process was demonstrated in detail.
文摘In the paper, we conduct research on the development trend of art design patterns under the perspectives of interaction design and visual reconstruction. With the increasing of people’s living standard, people on the industrial product requirements are constantly increasing, industrial products have gradually become to meet people’s life comfortable, functional, aesthetic and cultural history of the pursuit of all kinds of needs and the carrier of many connotations it is because of these changes in art design. In this paper, we integrate the Bauhaus’ idea to construct the new idea of constructing the interaction design and visual reconstruction. To note here that includes both the facts to the reality of the fact that also includes the artistic truth, or “virtual reality experience such as writer”, sequence of works of art, etc., and the former is an artist biography, the object of art history. With these basis and references, we propose the new idea on the issues. The result is satisfactory.
基金河北省自然科学基金(the Natural Science Foundation of Hebei Province of China under Grant No.A2006000941)河北省教育厅2006年科研计划(No.2006408)河北省科学技术研究与发展指导计划(No.072135142)。
