173,705 research outputs found
Effcient numerical simulation of dense gas flows past airfoils and wings
No full textDense gases are single-phase vapors whose properties deviate significantly from the ideal gas law, operating at temperatures and pressures of the order of magnitude of the critical ones. Bethe-Zel’dovich-Thompson (BZT) fluids, which can be commercially available heat transfer fluids, form a particular class of dense gases for which nonclassical gasdynamic behaviors are theoretically predicted: they display a Fundamental Derivative of Gasdynamics Γ=1+ρc∂c∂ρS , with ρ the fluid density, c the sound speed, and S the entropy, that becomes negative in a range of thermodynamic conditions above the liquid/vapor coexistence curve. In that case, the compression shocks of the perfect gas theory violate the entropy inequality and are therefore inadmissible. Such non-classical phenomena have several practical outcomes: prominent among them is an active research effort to reduce losses caused by wave drag and shock/boundary layer interactions in turbomachines and nozzles, with particular application to Organic Rankine Cycles (ORCs). The complexity of setting up experimental studies with such dense gases has motivated the development of numerical tools to analyze their performance, assess their interest and define their optimal conditions of use. This study deals with the extension to dense gas flow computations of a low-cost preconditioned implicit scheme previousy developed for perfect gas flows
Corre Jean — Télévision, promotion, enseignement
No full textC A. Corre Jean — Télévision, promotion, enseignement. In: Population, 22ᵉ année, n°5, 1967. p. 938
Corre Jean — Télévision, promotion, enseignement
No full textC A. Corre Jean — Télévision, promotion, enseignement. In: Population, 22ᵉ année, n°5, 1967. p. 938
corre fish
No full textcor(r)e fish nThat fish is large, always wet, having no land neere to drie, and is called Corre fish.PRINTED ITEM GMS April 76Used I and SupUsed I and SupNot UsedGREEN FISH, SALT-BULKChecked by Jordyn Hughes Tue 21 Jun 201
corre fish
No full textcor(r)e fish nThe Portugals, and French chiefly... beginne the fishing in Apriell, and have ended by July. That fish is large, alwayes wet, having no land neere to drie, and is called Corre fish.PRINTED ITEM G.M.Story January 1964Used I and SupUsed I and SupNot UsedGREEN FISH, SALT-BULKChecked by Jordyn Hughes Tue 21 Jun 201
Internet technologies relevant to private investigators’ working practices
No full textMuch has been written and discussed especially in the various US media and in legislative organs, about how the Internet is used illegally (hacking, stalking for instance), but hardly if any research has been done as to how the investigative industry employs the new medium to its benefit. The author described in this thesis how private investigators (PIs) execute their profession these days using the facilities the Internet avail them in contrast to the time before the dawn of the Internet. This contrast is also investigated in an international context, an important part of the thesis, drawn from the author's 32 years of international business experience and that of PIs worldwide. The availability of the various online facilities in different countries are compared. To better understand the new medium, and its facilities a short outline of the Internet’s history, it’s set up in general and for the use of PIs in particular is supplied. PIs also face limitations in their daily work, limitations originating from online, legal, educational, financial and international causes. The new medium not only helps PIs in their investigative, but also in their office work. Finally PIs' wishes for new tools to facilitate their daily investigative work and their outlook as to where the new medium will head are also discussed
Corre fish
No full textcor(r)e fish nThe Portugals, and French chiefly... who commonly beginne the fishing in Apriell, and have ended by July. That fish is large, alwayes wet, having no land neere to drie, and is called Corre fish.PRINTED ITEM DNE-cit W. Kirwin JUN 1973 JH JUN 1973Used I and SupUsed I and SupUsed IGREEN FISH, SALT-BULKChecked by Jordyn Hughes Tue 21 Jun 201
Corre fish
No full textcor(r)e fish n[The SWALLOW and SQUIRRELL] reached the coast of Newfoundland. They took soundings as they passed over the Banks, and recorded that "The Portugals and French have a notable trade of fishing upon this banke, where are sometimes a hundred or more saile of ships, who commonly begin the fishing in April and end in July. That fish in large and always wet having no lande there to drie and is called Corre fish."PRINTED ITEM G. M. Story JUN 1970 JH JUN 1970Used I and SupUsed I and SupNot UsedGREEN FISH, SALT-BULKChecked by Jordyn Hughes Tue 21 Jun 201
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Ocean control of the breeding regime of the sooty tern in the southwest Indian Ocean
No full textFood availability, which is often seasonal, is regarded as a key factor in the breeding success of seabirds. In oceanic tropical areas, the resources are mostly patchy and ephemeral at the surface, and the seasonality is less marked than at higher latitudes. Such a situation influences greatly the breeding strategies of the oceanic seabird species. We conducted a comparative study of the breeding phenology of the sooty tern (Sterna fuscata) in relation to the local and regional oceanographic conditions around the four major colonies (Europa, Juan de Nova, Lys and Bird Islands) of the southwest Indian Ocean. Over the 1997-2003 period, around all the studied locations, the sea-surface temperature (SST) and the chlorophyll concentration in the Mozambique Channel and the Seychelles area showed clear seasonal differences related to the southern climate and the monsoon phenomena. The breeding activity is synchronized at each studied colony, but the timings are very different. Seasonal reproduction occurs in austral winter at Europa and Bird Island and in austral summer at Juan de Nova; at Lys Island the reproduction is non-seasonal. For the seasonal colonies, there is a large monthly change in SST just before the beginning of reproduction, which is a proxy indicating the annual phytoplankton bloom. This variation is accompanied by the development of oceanic features such as fronts that favour aggregation of prey, and may also play an important role in the presence of schools of surface tuna, which are very important for the foraging success of sooty terns. Conversely, around Lys Island the seasonal variations of the marine environment do not lead to pronounced development of oceanic structures, and consequently, the longer-lasting phytoplankton bloom could explain the non-seasonal breeding regime there. Further studies will help discern the advantages and disadvantages of seasonal and non-seasonal reproduction regime in response to unpredictable fluctuations of the marine environment
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