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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of intelligent manufacturing 6 (1995), S. 321-337 
    ISSN: 1572-8145
    Keywords: Artificial intelligence ; concurrent engineering ; object-oriented modeling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: To help the achievement of integrated product and process development, there is a need for tools that can assist designers in creating manufacturable parts with less design routines and tryouts. This paper presents a systematic approach to developing automated manufacturability assessment tools by identifying the functional and informational requirements and proposing an assessment model. The work presented in this paper includes: (1) identification of characteristics and tasks of design for the die-casting process; (2) determination of functional and informational requirements for automatic manufacturability assessment; (3) formalization and modularization of assessment knowledge; and (4) modeling of product definition data to support the assessment. Object-oriented techniques are employed to model the assessment knowledge and manage the complicated and diverse types of product definition data by taking advantage of data abstraction, modularity, inherent concurrence, and the concept of encapsulation and extendibility.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1433-7339
    Keywords: Key words Cancer ; Pig-tail catheter ; Pleural effusion ; Sonography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  We retrospectively collected data from patients enrolled between 1996 and 1997, to evaluate the efficacy of sono-guided pig-tail-catheter drainage in cancer patients with large, symptomatic, amounts of malignant effusion and to evaluate the hemodynamic change after effusion drainage. A total of 477 pig-tail catheter drainage procedures were performed on 342 cancer patients. Sonographic findings, volume drained within 36 h after pig-tail insertion, heart rate and respiratory rate 24 h before and after drainage, and dyspnea sensations were recorded. We found that unilateral right-side effusion was the most frequent presentation. The mean amount of effusion drained within 36 h was 1747 ml in cancer patients. The decreases in heart rate (from 97/min to 91/min) and in respiratory rate (from 23/min to 21/min) were both statistically significant. There was no significant correlation between the amount of effusion before drainage and the heart rate or respiratory rate. The amount drained within 36 h was correlated significantly with the changes in heart and respiratory rates. Dyspnea sensations decreased or subsided in 91% of the patients within this time period. There were few complications with the pig-tail drainage procedure. Sono-guided pig-tail drainage is a safe and convenient method of effusion drainage in cancer patients. It not only provides temporary relief of symptoms from massive pleural effusions, but can also be used for pleurodesis if needed.
    Type of Medium: Electronic Resource
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