共查询到19条相似文献,搜索用时 562 毫秒
1.
2.
3.
可满足性(SAT)问题的几种DNA计算模型 总被引:1,自引:0,他引:1
DNA计算是一种新的计算方式,其高度并行性和巨大的信息存储容量为NP-完全问题的解决提供了一种全新的方法。主要介绍了几种可满足性(SAT)问题的DNA计算模型,并在编码问题、实现方式、及算法设计等三个方面对其进行了比较。 相似文献
4.
5.
DNA分子特性使得DNA计算具有极大的存储密度和高度的计算并行性。不管何种计算模型,DNA分子的选择和DNA编码都十分重要。提出了DNA计算中的B-树的数据结构设计方法。首先给出了B-树定义及其操作的形式化描述,接着介绍了本计算模型采用的3D结构DNA分子——k-arms分子结构,详细给出了一棵m阶B-树的构造步骤,最后实现了其查找、插入和删除等操作。提出了DNA分子计算的3D结构和分治策略,具有一定的可扩展性和并行性,对DNA计算的其他模型有参考价值。 相似文献
6.
DNA编码问题是DNA计算中初始数据库的设计问题,DNA编码优劣直接影响DNA计算的成功与否。提出了将DNA编码视为是某个文法产生的语言的思想,并且证明了DNA编码文法的存在性;进而通过化简文法的字母表,将DNA编码文法的设计问题转化为二进制文法的设计问题;同时设计出产生某个具体DNA编码的文法,最后得到了DNA编码文法的两个性质。 相似文献
7.
DNA计算机原理、进展及难点(Ⅳ):论DNA计算机模型 总被引:11,自引:0,他引:11
在DNA计算机研究中,所建模型的好坏直接影响着DNA计算中诸多问题,如编码的难易程度、整个生物操作或生化反应的设计、解空间的大小、计算时间多少、应用范围以及通用性的程度等.如何建立快速的、功能强的、具有一定通用性的DNA计算机模型,是从事DNA计算机研究者一直关注与感兴趣的难题.为此,该文将主要围绕着DNA计算机的模型建立展开讨论,重点讨论10年来所建立起来的一些主要模型.共分为三种类型:第一种是利用DNA分子结构与特性所建立起来的几种主要模型;第二种是利用生物操作方式所建立的三种模型:试管型、表面型与芯片型;第三种是所谓的DNA计算机模型.文中讨论了这些模型的基本原理、功能、优缺点以及应用的研究进展等.最后,对DNA计算机模型研究中的难点进行了分析,并给出了相应的解决思路. 相似文献
8.
9.
基于生化反应的生物智能计算是现阶段计算领域研究的热点,DNA计算是通过DNA分子之间的生化反应来进行计算的一种计算模式,凭借运算巨大的并行性和海量存储的优势,DNA计算在解决复杂运算问题方面的计算能力显而易见。设计了一种利用DNA计算来求解图的最小生成树的计算模型,采用一种特殊的编码方式来对顶点,边和权值进行编码,并且描述了MSTP解的计算过程。 相似文献
10.
11.
Knowledge, experiences and skills of corporate members promote new ideas into products, in the context of innovative design. This dynamism is especially important in the critical product conceptualization stage. In customer-oriented design paradigm, most methodologies focus on exploiting end-user requirements, instead of considering project stakeholder requirements in a holistic manner. Previous research in the area of innovative product conceptualization focused on such aspects as functional, cognitive, marketing and commercial perspectives. It involves the participations of customers, designers, engineers, marketers and business managers. Accordingly, a stakeholder-oriented innovative product concept development system (IPCDS) is established to integrate the bespoke four perspectives so as to evaluate product concept innovation comprehensively. To resolve the incomplete, ambiguous, uncertain and subjective nature of innovative design knowledge, the product platform represented in a design knowledge hierarchy (DKH) is generated using general sorting. Subsequently, an innovative design criteria matrix (DCM) constructed using repertory grids technique is rated with regard to specific design option. The ratings are then used as input features to the fuzzy integrals technique, for the purpose of innovative design. A case study on cellular phone design is used for system illustration and the results are discussed on the basis of product concept innovation. 相似文献
12.
A transformable product can perform different functions or change functionality by changing its physical structure. It is formed by integration of different components whose states can be transformed each other. However, there is a lack of systematic methods to guide design of the transformable product. In order to improve the design efficiency of transformable products, a large number of products are studied in this research to build a case base of transformation parameters and transformation principles for the design knowledge. A systematic design process is proposed to apply the design knowledge. The transformation design problem is first mapped from the problem domain to the knowledge domain expressed by transformation parameters. A general solution is then obtained in the knowledge domain. A multi-classification support vector machine is used to train a model of the transformation recommendation based on transformation parameters. Finally, the general solution is mapped into the problem domain for the specific solution using the analogy design. The effectiveness of the method is verified in the design of a self-propelled boom sprayer. 相似文献
13.
A vision-oriented approach for innovative product design 总被引:3,自引:0,他引:3
Chyun-Chau Lin Author Vitae 《Advanced Engineering Informatics》2009,23(2):191-200
Nowadays, business globalization, complex consumer requirements, and high technology development have led to vigorous business competition and market uncertainty. In new product design, it is increasingly important to put more emphasis on innovative concerns than quality and speed of production. Providing unique, innovative and value-added products becomes a crucial strategy for success. This study aims to develop a new product design process that concentrates on radical innovations. Visioning thinking, TRIZ, Image Scale, and Morphological Analysis are integrated for developing designs with a balance of rational/logical analyses and intuitive/creative thinking. The proposed process fulfills the need for radical innovation through enriching heuristic thinking. It is a useful methodology that adds value to products in terms of technological functions, form perceptions, and holistic usability. A proposal of therapy bike design for cerebral palsy children is demonstrated using the new process. Through case demonstration, designers could enhance products with human-centered values while coping with market uncertainty effectively. The applicability of the vision-oriented approach for innovative product design is verified. 相似文献
14.
在现代工业产品设计中,设计创意与创新设计对产品设计的成功起着举足轻重的作用,设计师的创意与创新设计能使其设计的工业产品给大众留有深刻的印象,因为新奇能给予人很深的印象,此论文谈及了设计的表现基础,同时对一些名师的设计进行了分析,使大家更加了解到工业设计中的创意与创新对工业产品的作用,希望通过此论文的学习,使大家能更多的了解创意与创新设计,并能在以后的设计中突发其想,做出更多优秀新奇的工业产品设计。 相似文献
15.
通过论述产品创新设计的概念,什么是好的产品创新设计,产品创新设计的方法,产品创新设计的误区,产品创新设计成功的若干因素等来阐述产品创新设计。 相似文献
16.
在体验经济的时代环境下,探析客户端游戏产品设计中所运用的用户体验设计策
略,为今后的传统产品设计寻求新的设计视角。采用文献研究和案例分析法,以用户体验设计
发展为基础,以产品设计、用户体验设计、交互设计、设计心理学及感性工学中的方法理论为
依托,借助客户端游戏产品为研究对象,对其蕴含的用户体验设计策略进行研究。给出一种用
户体验的量化评价模型,并提出了能够提升客户端游戏产品用户体验的设计策略,在此基础上
为传统产品的创新设计提供新的启示和指导。 相似文献
17.
Cheng Jung YangJahau Lewis Chen 《Expert systems with applications》2012,39(3):2884-2892
As is well known in biology, organisms adapt and evolve in response to their surrounding environments, a phenomenon similarly found in product development. Among the factors that may influence product changes include functional improvements, consumer habits, and the emergence of new technologies. Humans must develop products that impact the environment minimally to ensure sustainable living. This work presents a forecasting novel model to acquire innovative ideas more easily to design eco products, followed by evaluation of whether the new design is more effective than currently available ones in the concept design stage. The innovative approach to solving design problems is based on TRIZ evolution patterns, in which the index system of case-based reasoning connects the innovative idea to cases located in a database to accelerate the process. Finally, simple life cycle assessment is introduced to determine whether if the solution is better for the environment than the currently available ones. A novel eco-innovation concept for a cell phone is also presented to demonstrate the effectiveness of the proposed model. 相似文献
18.
范晓伟 《数码设计:surface》2009,(4):181-183
在产品设计中,材料是实现设计创意的载体。产品造型在取得合理的功能设计后,产品材料表面的处理往往使产品形态成为更加真实、含蓄、丰富的整体,使产品以自身的形象向消费者显示其个性,向消费者感官输送各种信息,满足消费者对各种产品的新要求和新的体验。产品表面的色彩、光泽、肌理和质地等,已成为产品与消费者之间传达感情和寄托的桥梁,并引导消费者正确地识别商品,购买商品,实现产品的价值。 相似文献
19.
面对激烈的市场行业竞争,产品应当满足用户需求且具有应用创新性的状况,基于对
用户需求和影响两次创新的主要因素的分析,提出了基于质量功能展开理论(QFD)的产品两级创新
设计方法。该设计方法通发掘用户对目标产品的需求,运用QFD 分析顾客需求并结合两创新级用
户因素,建立基于QFD 的产品创新设计模型和实现步骤,从而准确地得到相应的技术解决途径和
方案。并在此方法上通过电动滑板车的设计实例,验证该设计方法和流程的实用性和科学性。 相似文献