ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

Your email was sent successfully. Check your inbox.

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

Proceed reservation?

Export
Filter
  • 2010-2014  (339)
Collection
Language
Years
Year
  • 1
    Publication Date: 2012-10-01
    Description:    The product race has become an innovation race, reconciling challenges of branding, performance, time to market and competitive pricing while complying with ecological, safety and legislation constraints. The answer lies in “smart” products of high complexity, relying on heterogeneous technologies and involving active components. To keep pace with this evolution and further accelerate the design cycle, the design engineering process must be rethought. The paper presents a mechatronic simulation approach to achieve this goal. The starting point is the current virtual prototyping paradigm that is widely adopted and that continues to improve in terms of model complexity, accuracy, robustness and automated optimization. Two evolutions are discussed. A first one is the extension to multi-physics simulation answering the design needs of the inherent multi-disciplinarity of “intelligent” products. Integration of thermal, hydraulic, mechanical, haptic and electrical functions requires simulation to extend beyond the traditional CAD-FEM approach, supporting the use of system, functional and perception models. The second evolution is the integration of control functions in the products. Where current industrial practice treats mechanical system design and control design as different design loops, this paper discusses their integration in a model-based design process at all design stages, turning concepts such as software-in-the-loop and hardware-in-the-loop into basic elements of an industrial design approach. These concepts are illustrated by a number of automotive design engineering cases, which demonstrate that the combined use of perception, geometric and system models allows to develop innovative solutions for the active safety, low-emission and high-comfort performance of next-generation vehicles. This process in turn poses new challenges to the design in terms of the specification and validation of such innovative products, including their failure modes and fault-tolerant behaviour. This will imply adopting a model-based system engineering approach that is currently already common practice in software engineering. Content Type Journal Article Category Original Article Pages 1-20 DOI 10.1007/s00366-012-0286-6 Authors Herman Van der Auweraer, LMS International, Interleuvenlaan 68, 3001 Leuven, Belgium Jan Anthonis, LMS International, Interleuvenlaan 68, 3001 Leuven, Belgium Stijn De Bruyne, LMS International, Interleuvenlaan 68, 3001 Leuven, Belgium Jan Leuridan, LMS International, Interleuvenlaan 68, 3001 Leuven, Belgium Journal Engineering with Computers Online ISSN 1435-5663 Print ISSN 0177-0667
    Print ISSN: 0177-0667
    Electronic ISSN: 1435-5663
    Topics: Computer Science , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Technology
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Publication Date: 2013-12-20
    Description: Purpose With building construction and demolition waste accounting for 50 % of land fill space, the diversion of reusable materials is essential for Perth”s environment. The reuse and recovery of embodied energy-intensive construction materials during civil engineering works programs can offer significant energy savings and assist in the mitigation of the carbon footprint. Methods A streamlined life cycle assessment, with limited focus, was carried out to determine the carbon footprint and embodied energy associated with a 100-m section of road base. A life cycle inventory of inputs (energy and materials) for all processes that occurred during the development of a 100-m road section was developed. Information regarding the energy and materials used for road construction work was obtained from the Perth-based firm, Cossill and Webley, Consulting Engineers. These inputs were inserted into Simapro LCA software to calculate the associated greenhouse gas emissions and embodied energy required for the construction and maintenance of a 100-m road section using. Two approaches were employed; a traditional approach that predominantly employed virgin materials, and a recycling approach. Results and discussion The GHG emissions and embodied energy associated with the construction of a 100-m road section using virgin materials are 180 tonnes of CO 2 -e and 10.7 terajoules (TJ), respectively. The substitution of crushed rock with recycled brick road base does not appear to reduce the carbon footprint in the pre-construction stage (i.e. from mining to material construction, plus transportation of materials to the construction site). However, this replacement could potentially offer environmental benefits by reducing quarrying activities, which would not only conserve native bushland but also reduce the loss of biodiversity along with reducing the space and cost requirements associated with landfill. In terms of carbon footprint, it appears that GHG emissions are reduced significantly when using recycled asphalt, as opposed to other materials. About 22 to 30 % of greenhouse gas (GHG) emissions can be avoided by replacing 50 to 100 % of virgin asphalt with Reclaimed Asphalt Pavement (RAP) during the maintenance period. Conclusions The use of recycled building and road construction materials such as asphalt, concrete, and limestone can potentially reduce the embodied energy and greenhouse gas emissions associated with road construction. The recycling approach that uses 100 % reused crushed rock base and recycled concrete rubble, and 15 % RAP during the maintenance period could reduce the total carbon footprint by approximately 6 %. This large carbon saving in pavement construction is made possible by increasing the percentage of RAP in the wearing course.
    Print ISSN: 0948-3349
    Electronic ISSN: 1614-7502
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Economics
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
  • 4
    facet.materialart.
    Unknown
    IUGG Secretariat, KIT Karlsruhe Institute of Technology
    Publication Date: 2020-02-12
    Language: English
    Type: info:eu-repo/semantics/other
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    facet.materialart.
    Unknown
    IUGG Secretariat, KIT Karlsruhe Institute of Technology
    Publication Date: 2020-02-12
    Language: English
    Type: info:eu-repo/semantics/other
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    facet.materialart.
    Unknown
    IUGG Secretariat, GFZ German Research Centre for Geosciences
    Publication Date: 2020-02-12
    Language: English
    Type: info:eu-repo/semantics/other
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Publication Date: 2022-08-18
    Description: 38th IAMSLIC Conference: Anchorage, Alaska, U.S.A., August 26-30, 2012, held jointly with the 24th Cyamus Meeting: August 24-25
    Type: Proceedings , NonPeerReviewed
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    facet.materialart.
    Unknown
    BioOne
    In:  Journal of Shellfish Research, 30 (3). p. 1017.
    Publication Date: 2017-12-01
    Description: The influence of elevated seawater pCO2 on statolith calcification and prey capture was investigated in the early life stages of the common cuttlefish, Sepia officinalis. Cuttlefish were reared at 15�C and 35 psu in a flow-through seawater system under three pCO2 conditions, 700 matm (control), 1400 matm, and 4000 matm during 63 days in June to August 2009. Both, embryonic and hatchling cuttlefish raised under 4000 matm showed significantly reduced statolith calcification, whereas those grown under control and 1400 matm did not. Reduced calcification was demonstrated by comparing 18 transects characterizing the anterior surface of the statoliths. The statolith morphometrics that showed the most remarkable changes between the different pCO2 conditions were total statolith length, rostrum transects, wing area and statolith weight. Statolith microstructure was significantly affected by irregularly arranged statoconia, which were typical in the statolith wing area, replacing the highly compact and well-arranged crystals in normal growing statoliths. This abnormal crystal structure can have profound effects on statolith density and consequently on its normal functioning as a tool for buoyancy, acceleration and movement. Changes in statolith morphology and microstructure may influence the prey capture efficiency of the early life cuttlefish. At 4000 matm they showed a reduced ability to capture prey and were not able to successfully launch attacks against prey organisms. In order to verify these observations, a second experiment was conducted over 85 days in May to August 2010. Preliminary results showed that statolith morphology and microstructure differed again in the 4000 matm group. On the other hand, prey capture ability of the hatchlings showed recovery during the experiment, indicating a possible acclimation.
    Type: Article , PeerReviewed
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Publication Date: 2012-07-06
    Type: Article , NonPeerReviewed
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    facet.materialart.
    Unknown
    Alfred Wegener Institute for Polar and Marine Research
    In:  EPIC3Berichte zur Polar- und Meeresforschung = Reports on polar and marine research, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 662, 75 p., ISSN: 1866-3192
    Publication Date: 2018-09-12
    Repository Name: EPIC Alfred Wegener Institut
    Type: "Berichte zur Polar- und Meeresforschung" , notRev
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...