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  • Articles  (7)
  • 1995-1999  (7)
  • 1975-1979
  • Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics  (7)
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  • Articles  (7)
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  • 1
    Electronic Resource
    Electronic Resource
    Selecting alloys for severely corrosive service (1999)
    Bradford : Emerald
    Anti-corrosion 46 (1999), S. 6-13 
    Details
    ISSN: 0003-5599
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Selecting the most suitable, cost-efficient alloy for a given application should not be difficult if the methodology described in this paper is followed. The first step is to identify those alloys with the desired corrosion resistance. Factors other than chemical composition have a bearing on an alloy's corrosion resistance. Service environment and nature of the product application must also be considered. These conditions are discussed in the text. Consideration should be given to other key issues such as mechanical properties required as well as method of fabrication, design, condition and availability of the candidate alloy. To simplify selection, the author discusses severe corrodents and aggressive environments that are commonly encountered in the process industries, and describes the characteristics of alloys that might be considered for each type of corrosive service. Cross referenced charts position these alloys to show their relative resistance to each type of corrosion attack. While the paper is not designed to replace the technical expertise of a corrosion engineer, the author feels it can serve as a good starting point in the alloy selection process.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/00035599910252596
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Development of a rapid prototyping design advice system (1999)
    Springer
    Journal of intelligent manufacturing 10 (1999), S. 331-339 
    Details
    ISSN: 1572-8145
    Keywords: Rapid prototyping ; expert system ; knowledge based system ; decision support ; product development aid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract This paper describes the initial development of a computer based Rapid Prototyping Design Advice System. The system is intended to assist the designer or project manager, particularly those in small and medium sized companies, in planning the prototyping stage of product development. It provides the user with an efficient and user friendly development aid which uses information obtained from the user and Computer Aided Design data to recommend suitable rapid prototyping solutions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008920512663
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Investigation of point defect clusters in silicon using parallel molecular dynamics (1997)
    Springer
    Journal of computer-aided materials design 4 (1997), S. 29-42 
    Details
    ISSN: 1573-4900
    Keywords: Parallel molecular dynamics ; Point defects ; Silicon ; Aggregation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A parallel molecular dynamics algorithm is presented for computingconfigurations of relatively large defects in crystalline silicon, as modelledby the Stillinger–Weber (SW) three-body interatomic potential. Thealgorithm is based on a partitioning of physical space among the N processorswith atoms migrating freely between the partitions. Implementation on aneight-processor IBM SP2 computer shows the increased efficiency withsimulation size expected because of the increased computational load perprocessor relative to communication overhead. The parallel efficiency reached70% for 21 952 atoms. Calculations are presented for the thermodynamics offormation of interstitial and vacancy clusters containing up to seven pointdefects. The clusters were relaxed within a host lattice of about 3000 siliconatoms subjected to periodic boundary conditions. Free energies of formationfor temperatures 500 K ≤ T ≤ 1600 K were computed using thermodynamicintegration. Computed equilibrium distributions for these clusters show ashift to the larger species at lower temperatures, as expected. The SWpotential predicts greater driving forces for interstitial aggregation thanvacancy aggregation across the entire temperature range. Model calculationsfor a large vacancy cluster are also presented to demonstrate the utility ofthe algorithm for exploring very large defects in silicon.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008661719368
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  • 4
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    New applications of inverse methods in the design of MRI coils (1998)
    IOS Press
    Details
    Publication Date: 1998-07-01
    Print ISSN: 1383-5416
    Electronic ISSN: 1875-8800
    Topics: Electrical Engineering, Measurement and Control Technology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by IOS Press
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  • 5
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    Unknown
    Self-similar spiral instabilities in elastic flows between a cone and a plate (1995)
    Cambridge University Press
    Details
    Publication Date: 1995-02-01
    Description: Experimental observations and linear stability analysis are used to quantitatively describe a purely elastic flow instability in the inertialess motion of a viscoelastic fluid confined between a rotating cone and a stationary circular disk. Beyond a critical value of the dimensionless rotation rate, or Deborah number, the spatially homogeneous azimuthal base flow that is stable in the limit of small Reynolds numbers and small cone angles becomes unstable with respect to non-axisymmetric disturbances in the form of spiral vortices that extend throughout the fluid sample. Digital video-imaging measurements of the spatial and temporal dynamics of the instability in a highly elastic, constant-viscosity fluid show that the resulting secondary flow is composed of logarithmically spaced spiral roll cells that extend across the disk in the self-similar form of a Bernoulli Spiral. Linear stability analyses are reported for the quasi-linear Oldroyd-B constitutive equation and the nonlinear dumbbell model proposed by Chilcott & Rallison. Introduction of a radial coordinate transformation yields an accurate description of the logarithmic spiral instabilities observed experimentally, and substitution into the linearized disturbance equations leads to a separable eigenvalue problem. Experiments and calculations for two different elastic fluids and for a range of cone angles and Deborah numbers are presented to systematically explore the effects of geometric and rheological variations on the spiral instability. Excellent quantitative agreement is obtained between the predicted and measured wavenumber, wave speed and spiral mode of the elastic instability. The Oldroyd-B model correctly predicts the non-axisymmetric form of the spiral instability; however, incorporation of a shear-rate-dependent first normal stress difference via the nonlinear Chilcott-Rallison model is shown to be essential in describing the variation of the stability boundaries with increasing shear rate. © 1995, Cambridge University Press. All rights reserved.
    Print ISSN: 0022-1120
    Electronic ISSN: 1469-7645
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Cambridge University Press
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  • 6
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    Stabilization of fibronectin mats with micromolar concentrations of copper (1999)
    Elsevier
    Details
    Publication Date: 1999-02-01
    Print ISSN: 0142-9612
    Electronic ISSN: 1878-5905
    Topics: Biology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Medicine
    Published by Elsevier
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  • 7
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    THE OLYMPICS THAT GOT REAL? TELEVISION'S STORY OF SARAJEVO (1996)
    Springer
    Details
    Publication Date: 1996-11-01
    Description: Qualitative analysis of 1,240 references to previous and future Olympics throughout the 1994 Winter Olympics in Lillehammer, supplemented by personal interviews with five CBS production executives, revealed CBS's implied sanctioning of a political message about Sarajevo and the Bosnian War. Valent references to Sarajevo took the form of direct pleas to stop the fighting, calls for aid to victims, calls for remembering Sarajevo's past, stories of escape from the war zone, and images of the war's devastation, especially of the ruined sites of former 1984 Olympic glory. Although CBS's aims were commercial, it contextualized the war as an emotionally laden human-interest story rather than a military or political event.
    Print ISSN: 1059-9630
    Electronic ISSN: 1544-1016
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Springer
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