ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Articles  (48)
  • 1995-1999  (24)
  • 1990-1994  (24)
  • Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics  (44)
  • Information Science and Librarianship  (4)
Collection
  • Articles  (48)
Source
Keywords
Publisher
Years
Year
Journal
Topic
  • 1
    Electronic Resource
    Electronic Resource
    Breakthrough advances in low loss, tunable dielectric materials (1999)
    Springer
    Materials research innovations 2 (1999), S. 278-282 
    Details
    ISSN: 1433-075X
    Keywords: Key words Ferroelectrics ; Phased array antenna ; Tunable devices ; Thin films
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract  Low loss, tunable dielectric materials are important for phased array antenna and other device applications. Various composites of barium strontium titanium oxide (BSTO) combined with other nonelectrically active oxide ceramics have been formulated for such uses. The dielectric constant and the loss tangents of these composites have been reduced to enhance the overall impedance matching and thereby lowering the overall insertion loss of the device. The material has been fabricated in bulk ceramic, thick film, and thin film form to address a broad range of frequency applications. The material fabrication methods and the electronic properties of these composites will be discussed in this article.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100190050098
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Flow past an impulsively started circular cylinder at high Reynolds number (1994)
    Springer
    Computational mechanics 14 (1994), S. 298-310 
    Details
    ISSN: 1432-0924
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The unsteady viscous incompressible flow around a circular cylinder is studied numerically for high Reynolds number. The two dimensional Navier-Stokes equation in stream function-vorticity formulation is solved. A fractional step method is used to solve the stream function equation while the vorticity transport equation is solved using a third order upwinding scheme. The computed solutions by the finite difference method agree reasonably well with the available experimental and other computational results at a Reynolds number of 9500 and 4500. These comparisons are for the initial stages of flow evolution when the wake bubble is symmetric.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00350001
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Relaxation behavior of a nonlinear optical polyimide/inorganic composite (1993)
    s.l. : American Chemical Society
    Chemistry of materials 5 (1993), S. 743-746 
    Details
    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
    URL: http://dx.doi.org/10.1021/cm00030a001
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Procedures for estimating desirable initial states of a production line: a comparative study (1997)
    Springer
    Journal of intelligent manufacturing 8 (1997), S. 489-495 
    Details
    ISSN: 1572-8145
    Keywords: Genetic algorithms ; production line ; optimization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Two procedures for estimating initial states of a production line that ensure the line has a high probability of meeting the specified production target during a scheduled production shift are presented. The problem of determining desirable initial states is important in low variety, high volume production systems such as those from the automobile industry. One procedure is derived from design of experiments (DOE) theory whereas the other uses a genetic algorithm (GA). In the study it was determined that both procedures are straightforward to implement and produce good solutions to the problem. The results from the procedures are compared and their benefits and disadvantages are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018574719713
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Three-dimensional solution for a hybrid cylindrical shell under axisymmetric thermoelectric load (1997)
    Springer
    Archive of applied mechanics 67 (1997), S. 320-330 
    Details
    ISSN: 1432-0681
    Keywords: Key words piezothermoelasticity ; cylindrical shell ; exact solution ; laminate ; axisymmetry ; cross-ply.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary An exact axisymmetric piezothermoelastic solution is presented for a simply-supported hybrid cylindrical shell made of cross-ply composite laminate and piezoelectric layers. Numerical results for hybrid shells are presented for sinusoidal and central band thermal and electrical loads. The effect of the loading, the radius-to-thickness ratio, the span-to-radius ratio and the number of layers of the substrate on the response is investigated. The interface between the substrate and the actuated piezoelectric layer has been found to be subjected to high shear stress. It has been shown that the maximum values of the deflection and the stresses, due to thermal load, can be appreciably reduced by appropriate application of actuation potential.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004190050120
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    An exact axisymmetric solution for a simply supported piezoelectric cylindrical shell (1997)
    Springer
    Archive of applied mechanics 67 (1997), S. 260-273 
    Details
    ISSN: 1432-0681
    Keywords: Key words piezothermoelasticity ; cylindrical shell ; piezoelectric ; axisymmetry.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary Three-dimensional axisymmetric solution is presented for a simply supported piezoelectric cylindrical shell. The variables are expanded in Fourier series to satisfy the boundary conditions at the ends. The solution of the governing differential equations with variable coefficients is constructed as a product of an exponential function and a power series. The coefficients of terms of all degrees in the governing equations are set to zero, yielding a characteristic equation for the exponent and recursive relations for the coefficients of the power series. Results are presented illustrating the effect of thickness parameter of the shell. An inverse problem of inferring the applied temperature from the measured potential difference has been solved.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004190050116
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    The influence of gel pH on the growth of ammonium dihydrogen orthophosphate crystals (1990)
    Springer
    Journal of materials science 9 (1990), S. 334-335 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00725842
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Powders of Pb(ZrxTi1−x)O3 by sol-gel coating of PbO (1995)
    Springer
    Journal of materials science 30 (1995), S. 3231-3237 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Powders of lead zirconate titanate (PZT) are prepared by coating a PbO powder with very fine particles containing titanium and zirconium derived from an alkoxide sol. The size of the particles in the coating increases from 10 nm to 100 nm with the increase in the pH during preparation from 3 to 10.5. The powders calcine at low temperature (≃ 600 °C) to single-phase PZT without the formation of any intermediate phase. The tetragonal and rhombohedral phases are found to coexist betweenx = 0.535 and 0.545. Careful calcination of the powders is needed to ensure removal of residual organics; otherwise the residual carbon reduces PbO to metallic lead leading to high currents during poling. Loss of lead on sintering is significantly lower (1.4 wt%) as compared to samples from conventional powders (6.4 wt%). Successful poling of the sintered samples is achieved when the powders are prepared without using sol stabilizers and are calcined without pelletizing. Washing of the powders is not helpful, perhaps because it leads to change in stoichiometry due to loss of material. A dielectric constant of 950 andd 33 〉 190 pCN−1 are easily achieved.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01209242
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Low Cycle Fatigue Behavior of an ( + β) Titanium Alloy (1998)
    Springer
    Journal of materials science 17 (1998), S. 993-997 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006605918112
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Bibliometric analysis of AIDS literature (1991)
    Springer
    Scientometrics 20 (1991), S. 297-315 
    Details
    ISSN: 1588-2861
    Source: Springer Online Journal Archives 1860-2000
    Topics: Information Science and Librarianship , Nature of Science, Research, Systems of Higher Education, Museum Science
    Notes: Abstract In accordance with high incidence of AIDS cases, there is an epidemic growth of its literature. This unprecedented growth of literature calls for serious scientometric study. Such a study will not only help the scientometrists, information scientists, but also will be very useful to the related research workers. With this in view an attempt has been made to analyse AIDS literature published during the period 1976–1986 to identify its international channel of communication, medium of communication, contributing countries, authorship trends etc. This study is based on data printed in a source document entitledCollected Papers on AIDS Research, 1976–1986 published by BIOSIS which is a retrospective bibliography incorporating valuable references to research on AIDS from 9,000 source titles monitored in BIOSIS data base. The findings of this study have also been compared to those ofWyatt andSelf, Filardo andLancaster.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02018160
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...