“绿色”制造未来

本刊讯记者合力报道环境问题已经成为世界各国关注的热点,制造业正在逐步改变着传统的制造模式—推行“绿色制造”“。绿色制造”是在保证产品的功能、质量、成本的前提下,综合考虑环境影响和资源效率的现代制造模式。“绿色制造”使产品从设计、制造、使用到报废整个产品生命周期中不产生环境污染或环境污染最小化,对生态环境无害或危害极少。“绿色制造”除涉及到与制造相关的绿色材料、绿色能源之外,还涉及到绿色设计数据库、知识库等技术,以生产出保护环境、提高资源效率的绿色产品,如绿色汽车、冰箱等。国际经济专家分析认为,目前“绿…     

探讨数字城市发展方向

本刊讯 环境问题已经成为世界各国关注的热点，制造业正在逐步改变着传统的制造模式——推行“绿色制造”。“绿色制造”是在保证产品的功能、质量、成本的前提下，综合考虑环境影响和资源效率的现代制造模式。     

计算机仿真在制造业中的应用研究

在现代新产品的设计、研究和开发中计算机仿真技术发挥着巨大的作用,它是设计、研究和开发工作必要的工具和手段,为整个制造产业带了一场革命。未来的制造业,仿真技术和数字化设计将成为一种发展趋势。计算机仿真技术不仅规模越来越大,并且更加集成化、智能化、可视化和交互化。计算机仿真计算的发展以及在各行业的广泛应用,必将对我国制造业的产品开发产生巨大的推动力,也必将对民族工业的发展做出更大的贡献。     

基于NX的虚拟机床运动学建模与仿真

一、前言 随着虚拟制造技术的发展和应用的深入,仿真技术已广泛应用于制造业的评估工艺计划和设备,以及新产品设计.虚拟数控机床(Virtual Machine Tool,VMT)是虚拟制造的执行单元,是虚拟制造的一个底层关键技术和前提条件.     

发展绿色制造技术的思考

走进21世纪,人们在追逐着飞速发展的经济时,环保、绿色的话题已逐渐成为人们讨论的主题和关注的焦点。"十二五"期间,面对可持续发展的严峻考验,绿色制造仍然是工业发展的重要目标之一。其中,自动化技术更是实现绿色工业的重要手段。本文针对绿色化的概念与特点、中国为什么要发展绿色制造工业、我国装备制造业绿色化存在的主要问题、国家对于工农业绿色化的重视、绿色制造业的主要内容与制造业自动化的绿色化发展趋势等问题进行探讨。以加深人们对于发展绿色化装备制造业的认识。     

IT，以绿色的名义

实施“绿色制造”战略与制造业的产业结构调整及企业的振兴与发展密不可分。”绿色制造”将使企业经济效益和社会效益协调优化。     

“先进制造”的绿色驱动岁

后金融危机时代,制造业格局变数丛生,发达国家实施“再工业化”战略,推动全球制造业新一轮洗牌。“十二五”期间,处于工业化进程中后期的中国,在全球进军绿色制造的大势下,高举高打先进制造牌,快速实现转型升级,成为中国制造企业生存与发展的核心,通过转型“绿色制造”和“先进制造”成为“中国制造”转向“中国创造”的核心动力所在。     

IT,以绿色的名义

实施“绿色制造”战略与制造业的产业结构调整及企业的振兴与发展密不可分。“绿色制造”将使企业经济效益和社会效益协调优化。     

区块链推动郑州市制造业转型升级路径研究

区块链作为第五次技术革命的关键技术,与制造业深度融合,促使制造企业走向数字化、智能化、精准化生产应用模式,推动制造领域步入网络化、共享化、绿色化工业新业态.本文从区块链引领郑州市制造业转型升级,全面推动制造业高质量发展角度,明确提出现阶段郑州市制造业融合发展的4条路径,并提出2021年到2025年郑州市制造业转型升级发...     

虚拟制造技术在复杂曲面五轴联动加工中的应用

一、引言 复杂曲面五轴联动数控加工技术是当今制造业中的高新技术,它是一个涉及到计算机三维造型、CAM自动编程技术、测量技术、制造工艺学、切削仿真技术等多学科交叉的综合技术,因此具有较高的技术难度.     

Only connect: teaching, technology and telesis

Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。     

How do children do mathematics with LOGO?

Abstract  This paper considers some results of a study designed to investigate the kinds of mathematical activity undertaken by children (aged between 8 and 11) as they learned to program in LOGO. A model of learning modes is proposed, which attempts to describe the ways in which children used and acquired understanding of the programming/mathematical concepts involved. The remainder of the paper is concerned with discussing the validity and limitations of the model, and its implications for further research and curriculum development.