Intelligent systems in manufacturing: current developments and future prospects

Global competition and rapidly changing customer requirements are demanding increasing changes in manufacturing environments. Enterprises are required to constantly redesign their products and continuously reconfigure their manufacturing systems. Traditional approaches to manufacturing systems do not fully satisfy this new situation. Many authors have proposed that artificial intelligence will bring the flexibility and efficiency needed by manufacturing systems. This paper is a review of artificial intelligence techniques used in manufacturing systems. The paper first defines the components of a simplified intelligent manufacturing systems (IMS), the different Artificial Intelligence (AI) techniques to be considered and then shows how these AI techniques are used for the components of IMS

Structural and locational influences affecting export performance in South Island export manufacturing firms : a thesis presented in partial fulfilment of the requirements for the degree of Master of Arts in Geography at Massey University

Industrialisation may be defined as 'the growth in the proportion of the workforce employed in factories or manufacturing' (Blyth , 1974, 2), Generally there is no single accepted theory of industrialisation, instead there is a wide spectrum of theories and models concerning industrialisation and its relationship to economic development at both the national and subnational scale. Industrialisation is assumed by most as the key to economic progress. Maizels (1970) argues that industrialisation raises the physical output per head in the agricultural and then subsequently in the manufacturing sector. Historically, this sets in motion the process of urbanisation and over time the urban population becomes employed in manufacturing. The manufacturing sector then expands and exports follow as a logical consequence

Reversing the Trend of Large Scale and Centralization in Manufacturing: The Case of Distributed Manufacturing of Customizable 3-D-Printable Self-Adjustable Glasses

Although the trend in manufacturing has been towards centralization to leverage economies of scale, the recent rapid technical development of open-source 3-D printers enables low-cost distributed bespoke production. This paper explores the potential advantages of a distributed manufacturing model of high-value products by investigating the application of 3-D printing to self-refraction eyeglasses. A series of parametric 3-D printable designs is developed, fabricated and tested to overcome limitations identified with mass-manufactured self-correcting eyeglasses designed for the developing world's poor. By utilizing 3-D printable self-adjustable glasses, communities not only gain access to far more diversity in product design, as the glasses can be customized for the individual, but 3-D printing also offers the potential for significant cost reductions. The results show that distributed manufacturing with open-source 3-D printing can empower developing world communities through the ability to print less expensive and customized self-adjusting eyeglasses. This offers the potential to displace both centrally manufactured conventional and self-adjusting glasses while completely eliminating the costs of the conventional optics correction experience, including those of highly-trained optometrists and ophthalmologists and their associated equipment. Although, this study only analyzed a single product, it is clear that other products would benefit from the same approach in isolated regions of the developing world

Wire mesh design

We present a computational approach for designing wire meshes, i.e., freeform surfaces composed of woven wires arranged in a regular grid. To facilitate shape exploration, we map material properties of wire meshes to the geometric model of Chebyshev nets. This abstraction is exploited to build an efficient optimization scheme. While the theory of Chebyshev nets suggests a highly constrained design space, we show that allowing controlled deviations from the underlying surface provides a rich shape space for design exploration. Our algorithm balances globally coupled material constraints with aesthetic and geometric design objectives that can be specified by the user in an interactive design session. In addition to sculptural art, wire meshes represent an innovative medium for industrial applications including composite materials and architectural façades. We demonstrate the effectiveness of our approach using a variety of digital and physical prototypes with a level of shape complexity unobtainable using previous methods

Reversing the Trend of Large Scale and Centralization in Manufacturing: The Case of Distributed Manufacturing of Customizable 3-D-Printable Self-Adjustable Glasses

Although the trend in manufacturing has been towards centralization to leverage economies of scale, the recent rapid technical development of open-source 3-D printers enables low-cost distributed bespoke production. This paper explores the potential advantages of a distributed manufacturing model of high-value products by investigating the application of 3-D printing to self-refraction eyeglasses. A series of parametric 3-D printable designs is developed, fabricated and tested to overcome limitations identified with mass-manufactured self-correcting eyeglasses designed for the developing world\u27s poor. By utilizing 3-D printable self-adjustable glasses, communities not only gain access to far more diversity in product design, as the glasses can be customized for the individual, but 3-D printing also offers the potential for significant cost reductions. The results show that distributed manufacturing with open-source 3-D printing can empower developing world communities through the ability to print less expensive and customized self-adjusting eyeglasses. This offers the potential to displace both centrally manufactured conventional and self-adjusting glasses while completely eliminating the costs of the conventional optics correction experience, including those of highly-trained optometrists and ophthalmologists and their associated equipment. Although, this study only analyzed a single product, it is clear that other products would benefit from the same approach in isolated regions of the developing world

Digital design of a one megabit magneto-resistive memory incorporating efficient hardware fault tolerance

The research documented in this thesis was undertaken to improve and advance magneto-resistive (MR) memory design. This new memory technology shows great promise in many areas of modern computer systems;Our research team completed a design and partial layout of the first MR memory to operate in the voltage mode. This thesis focuses on the related areas of architecture and hardware fault tolerance. In the area of architecture, an overall chip organization was developed. Compact and space efficient layouts of MR cells and supporting circuitry also were designed. In the area of hardware fault tolerance, various techniques for improving chip yield and reliability in the presence of hardware failures, by means of, spares and error-correcting and detecting logic, were investigated and reported;Chapter 1 introduces computer memory systems and emphasizes the key advantages of MR memories over existing memory technologies. Chapter 2 provides information about the historical and theoretical background of MR memories. Chapter 3 provides an overview of the 1-megabit chip, in a top-down format, and provides a foundation on which the remaining more detailed chapters will be built. Chapter 4 contains details of the sense line design, and Chapter 5 discusses the details of support logic. Chapter 6 discusses yield-enhancing techniques, and Chapter 7 contains concluding remarks

A cluster-based industrial development policy for low-income countries

The need to construct an effective strategy for industrial development in low-income countries has been largely ignored by development economists because industrial policies have failed in many developing countries. This does not imply, however, that industrial development cannot be promoted. This paper attempts to synthesize the conventional wisdom in development economics with recent advancements in various fields of economics (such as theories of endogenous growth and agglomeration economies) to provide a useful framework to design a strategy for industrial development, which consists of investments in managerial human capital followed by the provision of credit and the construction of industrial zones.Economic Theory&Research,Labor Policies,ICT Policy and Strategies,Access to Finance,Political Economy

Pollution Prevention and Business Management. Curricula for Schools of Business and Public Health. Volume 1: Modules 1-3

These instructional modules are based on the premise that sustained economic development is dependent upon sustained protection ofthe environment. They also reflect the fact that preventing waste is far more cost effective than managing the waste once it is generated. Pollution prevention not only offers businesses a competitive opportunity, it is a natural extension of sound management practices. Incorporating pollution prevention into business management and government regulation will enhance longterm economic prosperity.published or submitted for publicatio

Index to 1984 NASA Tech Briefs, volume 9, numbers 1-4

Short announcements of new technology derived from the R&D activities of NASA are presented. These briefs emphasize information considered likely to be transferrable across industrial, regional, or disciplinary lines and are issued to encourage commercial application. This index for 1984 Tech B Briefs contains abstracts and four indexes: subject, personal author, originating center, and Tech Brief Number. The following areas are covered: electronic components and circuits, electronic systems, physical sciences, materials, life sciences, mechanics, machinery, fabrication technology, and mathematics and information sciences

Axiomatic Design of a Test Artifact for PBF-LM Machine Capability Monitoring †

Powder Bed Fusion Laser Melting (PBF-LM) additive manufacturing technology is expected to have a remarkable impact on the industrial setting, making possible the realization of a metallic component with very complex designs to enhance product performance. However, the industrial use of the PBF-LM system needs a capability monitoring system to ensure product quality. Among the various studies developed, the investigation of methodology for the actual machine capability determination has been faced and still represents an open point. There are multiple authors and institutes proposing different investigation methods, ranging from the realization of samples (ex situ analysis) to installing monitoring devices on the machine (in situ analysis). Compared to other approaches, sample realization allows for assessing how the machine works through specimen analysis, but it is sensitive to the sample design. In this article, we first present an analysis of a well-known test artifact from an Axiomatic Design perspective. Second, based on the customer needs analysis and adjustments with respect to the use of hypothetical additive production lines, a new test artifact with an uncoupled design matrix is introduced. The proposed design has been experimentally tested and characterized using artifact made of Inconel 718 superalloy to evaluate its performance and representativeness in machine capability assessment. The results show an accurate identification of beam offset and scaling factor considering all the building platform positions. In addition, the artifact is characterized by a reduced building time (more than 90% with respect to the reference NIST artifact) and a halved inspection time (from 16 h to 8 h)