基于面向服务架构的遗留系统再设计方法

提出了一种遗留系统再设计的方法,应用改进的层次聚类算法构建遗留代码,能够方便地将代码取出以构建Web服务.该方法支持服务鉴别和服务包装,通过改造有用的遗留代码,经济有效地将遗留系统迁移到面向服务架构中.最后利用上述技术,成功地再现了一个分布式并行计算平台的再设计过程.     

基于徽派建筑造型的文房四宝包装结构设计

将徽文化中的徽派建筑造型应用于文房四宝的包装造型和结构设计中。借鉴徽派建筑的三合式院落结构,将整个包装盒设计为3个房屋及1个天井的结构布局形式,分开放置具有不同外形的笔墨纸砚,4个独立的包装结构相互之间又具有较好的联系性,共同构成一个完整的包装。同时,独立包装内部设计了内衬结构,能够起到较好的固定和缓冲作用,增加了包装的稳定性能。外包装纸袋选用铜版纸为原料,在宽度方向的2个面板顶端设计了台阶造型,构成类似"马头墙"的结构造型。整体包装及独立包装设计具有较好的产品分隔性,能满足包装的基本功能,且体现出浓厚的徽文化特色。     

Knowledge representation of the software architecture design process based on situation calculus

Software architecture design is an interactive, complex, decision‐making process. Such a design process involves the exploration, evaluation, and composition of design alternatives. Increasingly, new computer‐aided tools are available to help designers in these complex activities. However, these tools do not know how design is actually done, in other words, by means of which design activities the final artefact was obtained. In fact, the architectural design knowledge exclusively rests in the mind of designers, and there is an urgent need to move it, as much as possible, to a computer‐supported environment that enables the capture of this type of knowledge. This contribution addresses this need by introducing a model for capturing how products under development are generated and transformed along the software architecture design process. The proposed model follows an operational perspective, where architectural design decisions are modelled by means of sequences of operations that are applied on the design products. Situation calculus is used to formally express the existence of an object in a given state of a design process. In addition, this formalism allows us expressing without ambiguities when an operation can be performed in a specific state of the design process.     

Trellis: Portability across architectures with a high-level framework

The increasing computational needs of parallel applications inevitably require portability across parallel architectures, which now include heterogeneous processing resources, such as CPUs and GPUs, and multiple SIMD/SIMT widths. However, the lack of a common parallel programming paradigm that provides predictable, near-optimal performance on each resource leads to the use of low-level frameworks with architecture-specific optimizations, which in turn cause the code base to diverge and makes porting difficult. Our experiences with parallel applications and frameworks lead us to the conclusion that achieving performance portability requires a common set of high-level directives and efficient mapping onto each architecture.     

Linking perception and action through motivation and affect

Research into cognitive architectures is described within a framework spanning major issues in artificial intelligence and cognitive science. Earlier work on motivation is extended with a cognitive model of reasoning which, together with an affective mechanism, enables consistent decision-making across a variety of cognitive and reactive processes. Cognition involves the control of behaviour within both external and internal environments. The control of behaviour is vital to an autonomous system as it acts to further its goals. Except in the most spartan of environments, the potential available information and associated combinatorics in a perception, cognition, and action sequence can tax even the most powerful agents. The affect magnitude concept solves some problems with BDI models, and allows for adaptive decision-making over a number of tasks in different domains. The cognitive and affective components are brought together using motivational constructs. The generic cognitive model can adapt to different environments and tasks as it makes use of motivational models to direct reactive and situated processes.     

珊瑚状分级微纳米结构聚苯胺的制备、表征及其气敏性能研究

采用简单的阴离子表面活性剂诱导原位化学聚合法,以过硫酸铵(APS)为氧化剂,在十二烷基硫酸钠(SDS)的盐酸溶液中制得了珊瑚状聚苯胺( PANI)微纳米材料.对所制备的PANI分别采用傅里叶变换红外光谱(FT-IR)、场发射扫描电镜(FE-SEM)进行表征.实验结果表明加入SDS后,可以得到一种珊瑚状分级结构PANI微...     

徽州民居的庭园空间处理剖析

徽州民居平面布局规整 ,轴线明显 ,而住宅的庭院则灵活多变 ,对比鲜明。本文分析了黟县碧山的耕读园和西递胡岐山旧院宅入口庭园空间表现手法 ,以供研究徽州古建筑作参考。     

徽州人文景观文本的英译研究

文章分析了徽州人文景观文本的特点,提出了徽州人文景观文本翻译应遵循的2个原则,及3种常用和可行的翻译方法.