Engaging or transmitting? Health at the science centre

Nordisk Museologi ◽

10.5617/nm.6661 ◽

1970 ◽

pp. 136

Author(s):

Catharina Thiel Sandholdt ◽

Marianne Achiam

Keyword(s):

Participatory Approach ◽

Scientific Content ◽

Change Over Time ◽

New Approach ◽

Science Centre ◽

Science Centres ◽

Strong Commitment ◽

Danish Science ◽

Over Time

Science centres have a strong commitment to education, but theimplications of that commitment change over time. The discovery pedagogy ofthe first science centres is gradually being replaced with a more dialogic approachthat acknowledges that science has different meanings for different people. Here,we follow the transition of a Danish science centre towards this new approach; atransition driven by the development of a dialogic exhibition on health. To thisend, we study the adaptive transformation of scientific content from its origin inscientific literature to its embodiment in the exhibition, using discourse analysisto track its deconstruction and reconstruction. We observe that although thescience centre’s established discovery pedagogy does challenge the implementationof dialogic perspectives on health, the participatory approach taken in thedevelopment process successfully overcame these challenges. In conclusion, we offerour perspectives on the implications of our findings for science centres.

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Flexible Design of Systems Considering Time-Dependent Reliability

Volume 2B: 41st Design Automation Conference ◽

10.1115/detc2015-46625 ◽

2015 ◽

Author(s):

Vijitashwa Pandey ◽

Zissimos P. Mourelatos ◽

Annette Skowronska

Keyword(s):

Time Dependent ◽

Time Varying ◽

Repairable Systems ◽

Flexible Design ◽

Change Over Time ◽

New Approach ◽

Hydrokinetic Turbine ◽

The Future ◽

Over Time

Many repairable systems degrade with time and are subjected to time-varying loads. Their characteristics may change over time considerably, making the assessment of their performance and hence their design difficult. To address this issue, we introduce in this paper the concept of flexible design of repairable systems under time-dependent reliability considerations. In flexible design, the system can be modified in the future to accommodate uncertain events. As a result, regardless of how uncertainty resolves itself, a modification is available that will keep the system close to optimal provided failure events have been properly characterized. We discuss how flexible design of repairable systems requires a fundamentally new approach and demonstrate its advantages using the design of a hydrokinetic turbine. Our results show that long-term metrics are improved when time-dependent characteristics and flexibility are considered together.

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Management of Energy Recourses, Marginal Input- Output Coefficients, and Layers of Techniques: A Case Study of US Chemical Industry

The Pakistan Development Review ◽

10.30541/v46i4iipp.517-536 ◽

2007 ◽

Vol 46 (4II) ◽

pp. 517-536 ◽

Cited By ~ 1

Author(s):

Toseef Azid ◽

Mumtaz Anwar ◽

M. Junaid Khawaja

Keyword(s):

Interest Rates ◽

Input Output ◽

Change Over Time ◽

New Approach ◽

Price Structure ◽

Fixed Price ◽

Current Price ◽

The Cost ◽

Over Time

The embodied technical change should reduce the cost of production of the commodity. However, price structure, wages and interest rates also will change over time. Thus if a commodity is following a fixed price regime, the adjustment of a historical input-output table to current price wage level will leaves less and less profit per unit of output. The extent of this reduction will indicate the extent of technological change. There are different approaches to the prediction of changes in input-output coefficients. The first approach, attributable to Leontief (1941) and Stone (1962), assumes that input-output matrices change over time in a “biproportional” way. The other approach is to estimate trends in individual coefficients using statistical data. Former approach is used by a number of experts, including Fontela, et al. (1970), Almon, et al. (1974) and Carter (1970). Arrow and Hoffenberg (1959), Henry (1974), Savaldson (1970, 1976), Ozaki (1976), Aujac (1972) and Buzunov (1970). These are examples of the application of the quantitative approach for forecasting input-output coefficients. Still another approach which could not get much attention for forecasting input-output coefficients, is constructing the marginal input-output coefficients [Tilanus (1967); Middelhoek (1970)]. Marginal coefficients for forecasting constructed by Tilanus and Middelhoek are based on average input-output tables, which shows that still new approach (marginal) is based on the old (average) one

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