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  • 1
    ISSN: 1520-5002
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Sensors and Actuators B: Chemical 14 (1993), S. 517-518 
    ISSN: 0925-4005
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Sensors and Actuators B: Chemical 1 (1990), S. 231-235 
    ISSN: 0925-4005
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Multibody system dynamics 2 (1998), S. 145-168 
    ISSN: 1573-272X
    Keywords: tolerance ; clearance ; optimization ; mechanical error ; mechanism ; lubricated joint
    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 addresses an analytical approach to tolerance optimization for planar mechanisms with lubricated joints based on mechanical error analysis. The mobility method is applied to consider the lubrication effects at joints and planar mechanisms are stochastically defined by using the clearance vector model for mechanical error analysis. The uncertainties considered in the analysis are tolerances on link lengths and radial clearances and these are selected as design variables. To show the validity of the proposed method for mechanical error analysis, it is applied to two examples, and the results obtained are compared with those of Monte Carlo simulations. Based on the mechanical error analysis, tolerance optimizations are applied to the examples.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1437-7772
    Keywords: Key words Cervical cancer ; Radical hysterectomy ; Radiotherapy ; Prognostic factors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background. To identify variable prognostic factors and analyze failure patterns in uterine cervix cancer after radical operation and adjuvant radiotherapy, a retrospective analysis was undertaken. Methods. We analyzed 124 patients with uterine cervix cancer, FIGO stage IB, IIA, and IIB, treated with radical hysterectomy and pelvic lymph node dissection followed by adjuvant radiotherapy between May 1985 and May 1995. Minimum follow-up period was 24 months. All these patients were treated with full-dose external radiotherapy using a linear accelerator or high-dose-rate intracavitary radiation. Results. Overall 5-year survival rate and relapse-free survival rate were 75.4% and 73.5%, respectively. Significant prognostic factors for relapse-free survival were wall involvement thickness, lymph node location and number, parametrium involvement, tumor size, stage, uterine body involvement, and vaginal resection margin involvement. By multivariate analysis, lymph node metastasis, tumor size, and vaginal resection margin involvement were significant prognostic factors. Treatment-related failure occurred in 33 cases. In stage IIB, 5-year relapse-free survival rate was only 56%, and 9 of 22 patients had recurrence. Conclusion. Postoperative radiotherapy results are good for patients with relatively low risk factors, but the results are poor for patients with multiple high-risk factors or stage IIB. To control recurrence for patients with high-risk factors, postoperative adjuvant radiotherapy alone is not a sufficient treatment method. Considering cost-effectiveness, it may be reasonable to treat with primary radical radiotherapy for patients with stage IIB cervical cancer and poor prognostic factors instead of a radical operation and adjuvant radiotherapy or chemotherapy regimen. Further investigation should be done.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Chichester : Wiley-Blackwell
    International Journal for Numerical Methods in Fluids 25 (1997), S. 167-182 
    ISSN: 0271-2091
    Keywords: Navier-Stokes procedure ; streamline co-ordinates ; QUICK scheme ; two-layer k-ε model ; CLmax ; near wake ; Engineering ; Numerical Methods and Modeling
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: An accurate and robust Navier-Stokes procedure to predict the complex flow about an aerofoil has been developed. Much improvement over existing methods is achieved in various aspects of the solution procedure. The computational grid generated by conformal mapping, which is not only orthogonal but aligned with the inviscid streamlines, keeps the equations simple and minimizes the error due to false diffusion. Formal second-order accuracy is ensured by employing the QUICK scheme for the convective derivatives in the full Navier-Stokes and turbulence transport equations. To treat the separated region properly and to better resolve the flow field in the wake, the two-layer k-ε turbulence model is incorporated. The onset of transition is triggered in a unique fashion to warrant the smooth transition to turbulent flow. Sample calculations for various aerofoil sections show that the prediction is improved substantially over those by existing methods. The details of the flow extending to the wake, such as the surface pressure distribution, CLmax, the velocity fields and the Reynolds stress profiles, are found to be in excellent agreement with the data. © 1997 John Wiley & Sons, Ltd.
    Additional Material: 15 Ill.
    Type of Medium: Electronic Resource
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