Data-based Target Goal Determination of Annual Visits to National Science Museums: A Convergent Approach to Organizational Efficiency

2019 ◽  
Vol 37 (5) ◽  
pp. 415-426
Author(s):  
Jung won Choi ◽  
Taewoo Nam
Keyword(s):  
Organizational Efficiency ◽  
Science Museums ◽  
National Science ◽  
Convergent Approach

scholarly journals What Remains: The Enduring Value of Museum Collections in the Digital Age

2020 ◽  
Vol 14 (1) ◽  
pp. 160-182 ◽  
Author(s):  
David Pantalony
Keyword(s):  
Human Dimensions ◽  
Careful Study ◽  
Museum Collections ◽  
Human Relations ◽  
Science Museums ◽  
The Past ◽  
German Science ◽  
National Science ◽  
Close Study ◽  
Unique Source

AbstractWhy do collections continually surprise? The simple answer for students and researchers is that collections of historic objects contain abundant information not well represented in texts or on the internet. Collections in museums, libraries, campuses and private hands offer a unique source of diversity for research, teaching and broader cultural offerings. In this paper, I look at the wealth of findings resulting from the careful study of objects, collections and provenance. I provide examples from our national science museums in Ottawa, as well as collecting activities throughout Canada. I will also describe recent research in German science collections. The close study of objects has a capacity to reveal multiple narratives and unexpected human dimensions of the past, while also connecting us to complex human relations with what remains in the present. I reflect on how collection keepers and museums can better harness the possibilities stemming from these kinds of approaches.

scholarly journals Hydroperoxides Formation in Jet Fuels Coming from Different Production Processes in Simulated Fuel System of Modern Aircraft

2017 ◽  
Vol 43 (1) ◽  
pp. 277-299 ◽  
Author(s):  
Jarosław Sarnecki ◽  
Bartosz Gawron ◽  
Jadwiga Głąb
Keyword(s):  
Thermal Action ◽  
Degradation Process ◽  
Jet Fuel ◽  
Jet Fuels ◽  
Test Rig ◽  
Production Processes ◽  
Simulated Fuel ◽  
Science Centre ◽  
National Science

Abstract The paper presents issues related to the process of thermal degradation of jet fuel. This process is of a different nature depending on temperature and time, in which the fuel is subjected to thermal action. The standard method for testing the jet fuel thermal stability seems to be insufficient, therefore, the conduct of the research on a dedicated test rig was taken in this paper. The assessment of the fuel degradation process was carried out on the basis of determination of hydroperoxide and acid numbers as signs of the occurred process. The article has been prepared within the research project No. 2011/01/D/ST8/06567 funded by the National Science Centre in Poland.

Galactic orbits of stars

1966 ◽  
Vol 25 ◽  
pp. 93-97
Author(s):  
Richard Woolley
Keyword(s):  
Globular Cluster ◽  
Potential Field ◽  
High Velocity ◽  
Velocity Vector ◽  
Variable Stars ◽  
The Sun ◽  
Proper Motions ◽  
Rr Lyrae ◽  
The Galaxy

It is now possible to determine proper motions of high-velocity objects in such a way as to obtain with some accuracy the velocity vector relevant to the Sun. If a potential field of the Galaxy is assumed, one can compute an actual orbit. A determination of the velocity of the globular clusterωCentauri has recently been completed at Greenwich, and it is found that the orbit is strongly retrograde in the Galaxy. Similar calculations may be made, though with less certainty, in the case of RR Lyrae variable stars.

Distance to SN 1987A and the LMC

1999 ◽  
Vol 190 ◽  
pp. 549-554
Author(s):  
Nino Panagia
Keyword(s):  
Angular Size ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Light Curves ◽  
Distance Modulus ◽  
Absolute Size ◽  
Sn 1987A

Using the new reductions of the IUE light curves by Sonneborn et al. (1997) and an extensive set of HST images of SN 1987A we have repeated and improved Panagia et al. (1991) analysis to obtain a better determination of the distance to the supernova. In this way we have derived an absolute size of the ringRabs= (6.23 ± 0.08) x 1017cm and an angular sizeR″ = 808 ± 17 mas, which give a distance to the supernovad(SN1987A) = 51.4 ± 1.2 kpc and a distance modulusm–M(SN1987A) = 18.55 ± 0.05. Allowing for a displacement of SN 1987A position relative to the LMC center, the distance to the barycenter of the Large Magellanic Cloud is also estimated to bed(LMC) = 52.0±1.3 kpc, which corresponds to a distance modulus ofm–M(LMC) = 18.58±0.05.

International determination of the total motion of the pole

1961 ◽  
Vol 13 ◽  
pp. 29-41
Author(s):  
Wm. Markowitz
Keyword(s):  
Secular Motion ◽  
The Future

A symposium on the future of the International Latitude Service (I. L. S.) is to be held in Helsinki in July 1960. My report for the symposium consists of two parts. Part I, denoded (Mk I) was published [1] earlier in 1960 under the title “Latitude and Longitude, and the Secular Motion of the Pole”. Part II is the present paper, denoded (Mk II).

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