6,781 research outputs found
Univagris Virakthamath & Murthy 1999
No full textUnivagris Virakthamath & Murthy Univagris Virakthamath & Murthy, 1999: 51. Type species: Univagris pallida Virakthamath & Murthy, 1999 Remarks. The following genus-level characters supplement the original description by Viraktamath & Murthy (1999). Prothoracic femur row AV with several short, stout setae, IC with 9 long setae (Fig. 21). Mesothoracic femur with AV setae short (Fig. 22), Segment I of fore and mid tarsi with numerous macrosetae ventrally (Fig.2 3). Metathoracic femur with setal formula 2+1+1 (Figs. 24, 25). Metathoracic tibia flattened, row PD with macrosetae, AD spinelike, AV with macrosetae, PV with numerous long setae, tarsomere II less than 1/2 length of tarsomere I, tarsomere I with 3–4 platellae (Fig. 26). The genus differs from related genera in having a single median process of the connective with which the aedeagus is fused, and a broadened style apex. It shares the fused aedeagus and connective with Thyaksha Viraktamath & Murthy and Sikhamani Viraktamath & Webb. The latter differ in having the male pygofer without any process and the style apex broadened Distribution. IndiaPublished as part of Rajgopal, N. N. & Meshram, Naresh M., 2018, Second species of unusual leafhopper genus Univagris (Hemiptera: Cicadellidae: Deltocephalinae) from India, pp. 425-430 in Zootaxa 4514 (3) on pages 425-426, DOI: 10.11646/zootaxa.4514.3.7, http://zenodo.org/record/260814
Calculation of laminar boundary layers on continuous surfaces by Meksyn's method
No full textPrevious work by Murthy (1965) and Murthy et al. (1967) on shock tube boundary layers is extended to show that the governing equations and boundary conditions for solving the laminar boundary layer which develops on an uninsulated wall behind a shock wave advancing into a stationary fluid can be solved by the Meksyn (1961) technique for wall shear and wall heat transfer parameters. Yielded results are shown to agree with Erickhoff's (1973) recent ones when the shock strength is much larger than unit
Hypersonic flow over blunted slender wedges
No full textAn attempt is made to show that the results of Stollery et al. (1971) can be obtained in closed form for the pressure and shock wave shape by integrating the equations analytically, as described by the author (1972). Further, it is indicated that the estimates of the method near the leading edge can be improved by incorporating modifications suggested by Kemp (1969) to account for the effect of gamma (ratio of specific heats)
Competing conventions: The Big Branders’ struggle to incorporate new quality conceptions in the Norwegian food market
No full textThe paper addresses recent changes in the Norwegian agrifood industry from the analytical perspective of quality conventions. Storper and Salais’ “worlds of production” plus Boltanski and Thévenots’ “orders of worth” are used as a basis for the empirical study. First, the paper discusses how the largest Norwegian branders try to strategically adapt to “novel” quality attributes like health-enhancing food, origin/terroir, environmental sustainability and ethics. Second, the paper investigates the companies’ quality signalling strategy: How are these “novel” qualities communicated to consumers? Multiple options are available: Do they attempt to systematically incorporate “novel qualities” into their private brand equity (“conventionalizing qualities”)? Do they prefer a co-labelling scheme with a third party control, or do they use any other measures for quality signalling? The paper thereby discusses how the largest Norwegian branders in the food sector cope with conflicting and competing quality conventions.Food quality, economics of convention., Food Consumption/Nutrition/Food Safety,
The Worldview and the Author´s (Self)Reflection in Czech Contemporary Historiography
No full textCílem studie je představit možnosti, jak na základě publikovaných autorských textů zkoumat světový názor historiků a historiček, zejména v oboru soudobých dějin, kde lze předpokládat vliv jejich hodnotového horizontu na interpretaci relativně nedávné minulosti. Autor nejprve vymezuje pojetí světového názoru vzhledem ke stanovenému záměru a zdůvodňuje analytické užití tohoto pojmu v historiografickém textu, v daném kontextu se také zamýšlí nad vztahem paměti, dějin a historiografie. Konstatuje, že poměrně málo českých historiků a historiček dosud reflektuje vztah (individuální či kolektivní) paměti a práce dějepisce, zvláště s ohledem na jeho pozici v současné společnosti, která bývá často redukována na roli objektivního „objevitele historické pravdy“. Taková (sebe)reflexe předpokládá přiznání vlivu individuálního světového názoru historika (komplexu názorů a postojů formovaných výchovou, vzděláním, vzpomínkami, generační příslušností a podobně) na jeho vědeckou činnost. Autor studie nabízí dvě možné a vzájemně se doplňující cesty k poznání historikova světového názoru: jednak prostřednictvím vlastních svědectví a prohlášení z jeho osobněji laděných textů a egodokumentů (eseje, rozhovory, vzpomínky, příspěvky na sociálních sítích), jednak analýzou jeho vědeckých textů (časopiseckých studií, knižních monografií, recenzí). Oba přístupy autor dokumentuje na konkrétních příkladech z produkce historiků a historiček českých soudobých dějin. V závěru studie pak nastiňuje cíle a smysl zkoumání historikova světového názoru.The aim of this study is to present the opportunities for research into the worldview of historians, especially historians focused on contemporary history, where it can be assumed that their set of values may influence their interpretation of the rela-tively recent past. The author first defines the notion of worldview and justifies the analytical use of this concept in historiographical texts. He also considers the relationship between memory, history and historiography in the given context. The author states that not many Czech historians have so far reflected on the relationship between (individual and collective) memory and the work of the historian, especially with regard to his or her position in contemporary society, which is often reduced to the role of an objective “discoverer of historical truth”. Such (self)reflection presupposes the acknowledgement of the influence of the historian’s individual worldview (a complex of opinions and attitudes shaped by upbringing, education, memories, generational affiliation and so on) on his or her scholarly activity. The author of the study offers two possible and complementary ways to learn about the historian’s worldview: first, through his or her own testimonies and statements from more personal texts and ego-documents (essays, interviews, memoirs or social me-dia posts), and second, through the analysis of his or her scholarly texts (journal studies, monographs and book reviews). The author demonstrates both approaches with concrete examples of works by historians of Czech contemporary history and concludes by outlining the aims and purpose of examining the historian’s worldview. © 2022, Institute of Contemporary History of the Czech Academy of Sciences. All rights reserved
Inventering av biologiskt kulturarv
No full textFältmanual till biologiskt kulturarv Föreliggande skrift är framför allt en fältmanual till biologiskt kulturarv (och ett urval av andra biologiska kulturbärare), en checklista med bilder och beskrivningar. Det tar också upp några aspekter på själva metodiken för inventering, kartering och tolkning. Fältmanualen omfattar de vanligaste aspekterna av biologiskt kulturarv som man kan hitta i svenska landskap från söder till norr. Listan beskriver biologiskt kulturarv huvudsakligen från nivåerna egenskaper, individer och artförekomster enligt RAÄ:s indelning
A study of the pressure variations in the recovery tube due to unsteady turbulent boundary-layer growth
No full textAn analysis for calculating the pressure variations occurring in a recovery tube due to unsteady turbulent boundary-layer growth has been presented. The analysis uses one dimensional unsteady flow equations and the vertical velocities induced at the edge of the boundary layer. It is shown that the pressure at the tube entry increases with time and the theoretical predictions are in good agreement with the available experimental results. Finally, some estimates for the possible pressure rise at the diffuser exit of the proposed European Transonic Ludwieg tube tunnel are given
Hypersonic flow over concave surfaces with leading-edge bluntness
No full textBoth Cheng's theory and its modified version using tangent wedge rule are studied for power-law concave surface flows with leading-edge bluntness. It is shown that Cheng's theory yields highly oscillatory results for concave surfaces with blunt leading edge. The tangent wedge analysis is found to predict a smooth transition from the leading-edge blast wave effect to the downstream asymptotic conditions. The alternative use of the tangent wedge formula cannot be justified strictly from theoretical considerations, since it neglects the centrifugal pressure rise on the surface. The good agreement with experimental results obtained for concave surfaces with sharp leading edge using the tangent wedge formula suggests that the analysis presented may be useful in making first estimates, since the effects of the nose bluntness and the boundary-layer displacement are13; similar.13
Sammanställning av småskalig skogsutrustning
No full textDenna skrift är en sammanställning av utrustning för småskaligt skogsbruk. Redovisat data härrör från samtliga funna tillverkare och generalagenter som saluförde utrustning relevant för sammanställningen. Tillverkare och generalagenter återfanns genom existerande marknadsöversikter, internetportaler och genomgång av försäljningsannonser i branschtidningar. Sammanställningen gör dock ej anspråk på att vara helt komplett. Sammanställningsarbetet utfördes under tiden mars 2003 till september 2004. Skriften utgör en del i doktorandkursen Det självverksamma skogsbrukets teknik. Arbetet har utförts inom ramen för forskningsprogrammet Arbetsmiljö och effektivare teknik FÖR privata skogsbrukare (FÖR-programmet) vid Sveriges lantbruksuniversitet (SLU) i Umeå.
Redovisade cirkapriser anges exklusive moms och frakt, och för utrustningen i standardutförande ett angivet datum. I de fall priser anges i utländsk valuta är det cirkapris i tillverkningslandet. I vissa fall har tillverkaren eller generalagenten inte velat ange något cirkapris. Där inget annat anges innehas rättigheterna till foton av respektive tillverkare eller generalagent och återges med deras tillstånd. Variationen mellan tillverkares data är i vissa fall stor, varför sammanställda tekniska data inte alltid är konsekvent angivna
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