开启红外的世界

“任何事物从来就不是一般人所熟悉的那样,我所认可的是我从未曾见过的。熟悉事物的不可思议面。不可思议事物的熟悉面。”     

科学与艺术：如何提升教学设计的境界

英国博物学家赫胥黎曾在《科学与艺术》中形象地比喻：“科学与艺术是自然这块奖章的正面和反面.它的一面以感情来表达事物的永恒的秩序;另一面,则以思想的形式来表达事物的永恒的秩序.”自古以来,科学和艺术就是携手相伴、共同前行的.然而,随着社会分工的细化,科学与艺术似乎是异途而行,渐行渐远.     

《科学与艺术》教学再设计

“科学与艺术”单元综述 主题概述：英国博物学家赫胥黎曾在《科学与艺术》中形象地比喻说：“科学与艺术是自然这块奖章的正面和反面,它的一面以感情来表达事物的永恒的秩序;另一面,则以思想的形式来表达事物的永恒的秩序.”科学和艺术自古以来就是携手相伴共同前进的,然而随着社会分工的细化,科学与艺术似乎是异途而行.     

任务驱动模式下VisualFoxPro数据库教学方法的探讨

在高等学校教学模式下,数据库教学中分组教学法、角色扮演法、形象比喻法等多种教学法的应用。     

《会变的图形》教学设计及评析

一、教学内容浙江教育出版社的省编教材第一册第十课《会变的图形》。从学生身边熟悉的事物入手激发学生的学习兴趣。从教材的分布情况来看,本节课是在学生比较熟悉画图的基础上进行的。教学时,应让学生在进一步熟悉画图功能的同时,积极感受计算机的优越性,培养学习兴趣,增强技能,同时渗透思想品德教育。     

《科学与艺术》教学再设计

"科学与艺术"单元综述 主题概述:英国博物学家赫胥黎曾在《科学与艺术》中形象地比喻说:"科学与艺术是自然这块奖章的正面和反面,它的一面以感情来表达事物的永恒的秩序;另一面,则以思想的形式来表达事物的永恒的秩序."科学和艺术自古以来就是携手相伴共同前进的,然而随着社会分工的细化,科学与艺术似乎是异途而行.     

科学与艺术:如何提升教学设计的境界

英国博物学家赫胥黎曾在《科学与艺术》中形象地比喻:"科学与艺术是自然这块奖章的正面和反面.它的一面以感情来表达事物的永恒的秩序;另一面,则以思想的形式来表达事物的永恒的秩序."自古以来,科学和艺术就是携手相伴、共同前行的.然而,随着社会分工的细化,科学与艺术似乎是异途而行,渐行渐远.     

信息技术教材中的科学史探秘之三存在统一的信息概念吗

"信息"是信息技术课的核心和基本概念,它无处不在,我们时刻感受着它.但正应了那句老话,越是熟悉的事物,越难以给出统一的定义.     

QQ表情用时方恨少,即时搜搜果然妙

说到QQ表情，对于如今的新新人类来说已经是再熟悉不过的事物了。大家早已经远离纯文字沟通的时代，在字里行间不来几个生动活泼的表情，是不足以表达聊天者丰富多彩的情绪的。     

黄金视野 新款16：9宽屏笔记本导购

不知不觉之间,市场上的16：9宽屏笔记本电脑越来越多,我们以往熟悉的16：10宽屏已经不再那么宽了,作为一种新鲜事物,同时也是今后的发展趋势,我们有必要对它们加深一些认识。     

《数据结构》的类比教学

针对数据结构课程内容多、逻辑性强、概念抽象等特点,从“横向”的存储类比和不同事物间的“纵向”类比两个角度介绍了数据结构的类比教学,由此及彼,化抽象为具体,帮助学生记忆和理解抽象概念与算法,激发学生的学习热情,提高了课堂教学效果。     

On the hermeneutics of everyday things: or,the philosophy of fire hydrants

It can sometimes be difficult to think about “everyday” objects, those things we are so familiar with that they become taken-for-granted aspects of the backdrop of our world. But what if those objects, despite their everydayness, are politically fraught and call for closer examination? I suggest that insights from two contemporary perspectives, postphenomenology and actor-network theory, are useful for drawing out the experiential, social, and political dynamics of everyday things. In this paper, I review and resituate several key concepts from these two theoretical frameworks and outline a method for using them together for the evaluation of technology. As a guiding example, I explore a paradigmatic everyday device: fire hydrants. Despite their everyday character, hydrants fulfill multiple social roles, some of them loaded with difficult and important political implications.     

Making computer instruction accessible: Familiar analogies for female novices

While computers have become increasingly important in the workplace, there is growing concern that women tend to be underrepresented in computer-related fields. The present study was concerned with teaching computer skills to female novices. In particular, we were interested in designing an instructional manual that would facilitate learning computer skills and increase computer self-efficacy. An experimental instructional package based on a familiar but complex analogy was designed. It was compared to a control instructional package which was similar to commonly available computer learning packages. Twenty female undergraduate computer novices were given either the experimental or the control instructional package and were asked to reproduce a standardized letter. Results indicated that experimental subjects performed better in reproducing the letter and tended to make fewer requests for help than control subjects. Self-efficacy appeared to be influenced by subjective evaluations of success. Teaching novel computer tasks within the framework of a familiar analogy may offer an effective means of facilitating computer learning for female novices.     

Program morphisms

An algebraic view of recursive definitions is presented, extending an already familiar analogy with homomorphisms. A notion of simulation of one recursive definition by another is then defined. This leads to a particular approach to verification and transformation, which places emphasis on the arrows between programs, rather than the programs themselves. These arrows are the program morphisms of the title. Examples are given, together with certain extensions of the idea. Also indicated is a methodology which can lead to the discovery of program morphisms and new equivalent versions of a given program.     

Learning studies in the use of computer aided design systems for discrete-parts manufacture

Two-dimensional computer aided engineering design systems are recognized as having limitations in comparison with the alternative three-dimensional techniques of solid modelling. The mathematically sounder approach of solid modelling permits far greater integration between the activities of functional design, design analysis and manufacturing. However, the existing methods of specifying design geometry within typical solid modelling systems are deficient in that they relate more to the mathematical needs of the computer system than they do to the needs of the designer. CAPE-LUT (Computer Aided Production Engineering-Loughborough University of Technology) is a prototype system which provides a machining analogy so that geometric and manufacturing ideas can be expressed through familiar engineering terminology, to provide detail designs and outline process plans. CAPE-LUT is an experimental vehicle only and the system has been used to investigate the hypothesis that a 'manufacturing features' approach to design and manufacture is easy to learn, accurate and fast in use, and acceptable to practising designers and manufacturing engineers. This paper describes the experimental work, which provides statistical evidence that the manufacturing features method is significantly easier to learn than a similar CAD system that has a purely geometric interface. It is also shown that CAPE-LUT performed well when used by experienced subjects and was acceptable to a large number of practising engineers.     

Effects of multimedia and schema induced analogical reasoning on science learning

The present study investigates the effects of multimedia and schema induced analogical reasoning on science learning. It involves 89 fourth grade elementary students in the north‐east of the United States. Participants are randomly assigned into four conditions: (a) multimedia with analogy; (b) multimedia without analogy; (c) analogy without multimedia; and (d) non‐multimedia and non‐analogy. The multivariate analyses of covariance reveal significant main effects for multimedia and analogy learning as well as a significant interaction between multimedia and analogy. The findings show that schema induced analogical reasoning can significantly improve science learning and that multimedia becomes more effective when it is integrated with an instructional method such as analogy and less so when it is used only as a visual tool. The study also shows the field dependence/independence as a significant covariate that influences learners' schema induced analogical reasoning in learning. Discussions pertaining to the significance of the findings and their implications for teaching and learning are made. Suggestions for future research are included with an emphasis on developing multimedia supported analogical reasoning for science learning.     

Shapes and Other Things

Shape grammars have offered a unique computational theory of design over the past forty or so years. Although the focus of shape grammar theory has been on shapes and designs, the material objects or things that might comply with shapes have also been considered. In this paper, I trace the history of approaches for specifying material properties and things through shape grammars. I identify early trends and their limitations, and then propose a new possibility. In early approaches, material things were viewed through the lens of shapes. I argue for a new approach in which shapes are viewed through the lens of material things. Shape grammars are adapted to define making grammars for computing things. Shapes are just one of many things that can be made with these grammars. I conclude with a discussion of the relationship of designing and making, and suggest that designing is a kind of making.     

创新寓于“组合”之中——产品创新设计方法之矩阵组合法

"组合"应用了矩阵代数中的特殊的规则和形式,让设计师在熟悉的事物中去创造新的结合构想。本文从矩阵组合的含义和实际应用出发,分析了组合的特点及不同类型;分别分析了不同特殊矩阵组合法:对角型组合、对称组合、三角形组合、分块型组合;并加以案例说明矩阵组合法的应用;得出了矩阵组合在产品创新设计中的应用方法。     

The Mark of the Cognitive

It is easy to give a list of cognitive processes. They are things like learning, memory, concept formation, reasoning, maybe emotion, and so on. It is not easy to say, of these things that are called cognitive, what makes them so? Knowing the answer is one very important reason to be interested in the mark of the cognitive. In this paper, consider some answers that we think do not work and then offer one of our own which ties cognition to actions explained via the having of reasons.     

An isentropic flow algorithm with body fitted meshes

An efficient algorithm based on flux difference splitting is presented for the solution of the three-dimensional equations of isentropic flow in a generalised coordinate system, and with a general convex gas law. The scheme is based on solving linearised Riemann problems approximately and in more than one dimension incorporates operator splitting. The algorithm requires only one function evaluation of the gas law in each computational cell. The scheme has good shock capturing properties and the advantage of using body-fitted meshes. Numerical results are shown for Mach 3 flow of air past a circular cylinder. Furthermore, the algorithm also applies to shallow water flows by employing the familiar gas dynamics analogy.