103,167 research outputs found
Joshua Davis: Author of Spare Parts
No full textCitation: K-State First (2016). Joshua Davis: Author of Spare Parts [Flier]. Manhattan, Kansas: K-State First.Flyer advertising Joshua Davis's author talk at Kansas State University
Periodic morphing of a NACA6409 aerofoil in ground effect, its wake mechanisms and thrust generation
No full textThe camber morphing of an aerofoil in ground effect was investigated using the FishBAC method and Detached Eddy Simulations with the k-omega SST turbulence model at a Reynolds number of 320,000. The aerofoil was periodically morphed at a start location of 25% chord from the leading edge with a trailing edge deflection range of 0.1% to 3% and morphing frequencies between a Strouhal number of 0.45 to 4 at a constant ground clearance of 10%. Periodically morphing the aerofoil using a sinusoidal function showed that lift and drag increased on the downstroke and decreased on the upstroke in the cycle, resulting in periodic values of lift and drag throughout the cycle. The amplitude of lift and drag increased as the morphing frequency and/or trailing edge deflection increased. It was found that the wake characteristics varied as a function of trailing edge deflection and morphing frequency. For small trailing edge deflections below 0.4% and frequencies below a 2.2 Strouhal number, Kelvin Helmholtz shedding was observed, and above this the wake became chaotic. Large trailing edge deflections showed Von-Karman shedding, where the interaction between the lower counter-clockwise vortex and the ground plane resulted in a jet-like flow that caused forward thrust. For the maximum deflection and morphing frequency tested in this study, reversed Von-Karman shedding was observed, which caused forward thrust from the interaction of the two-shedding counter-rotating vortices. Von-Karman or reversed Von-Karman shedding shows positive thrust generation, however, chaotic shedding should be avoided due to large drag gains. Varying the Reynolds number caused the Strouhal number to change as they depend on the same variables. It was found that the Strouhal number variation had a large effect on the wake, however, the Reynolds number had a minimal effect
Steven Johnson Author Talk Poster
No full textK-State Book NetworkA poster advertising an author talk by Steven Johnson at Kansas State University on September 3, 2014. Steven Johnson's book "The Ghost Map" was the 2014-2015 common book
Anderson K. Clements Letters
No full textClements was a native of Wake County, North Carolina and apparently was involved in Baptist affairs in the 1840s. His obituary appears in the Biblical Recorder, Dec. 21, 1892.His letter to G. W. Purefoy requests his opinion on accepting members from other faiths who have not been baptized by immersion. A letter from R. Blacknall to Clements discusses a meeting in the neighborhood (Orange County, North Carolina), the selling of gold mines, and the election
John K. Clements requesting his service records
No full texthttps://digitalmaine.com/arc_me_militia/1074/thumbnail.jp
John K. Clements requesting his service records
No full texthttps://digitalmaine.com/arc_me_militia/1074/thumbnail.jp
Myopa hirsuta Stuke & Clements, 2008, spec. nov.
No full textMyopa hirsuta spec. nov. (Figs. 7, 14, 21, 26) Locus typicus: Germany: Döttlingen (52,94 °N, 8,38 °E). Holotype 1 ♂: (1) “NW.-D: Döttlingen / [Oldb] 30.4. 1978 / leg. BARKEMEYER” [copied label]; (2) “ Holotypus / Myopa hirsuta / spec. nov. ♂ / Stuke & Clements / det. 2004 ”. —[The holotype is in excellent condition and is deposited at ZMHB. It was loaned to JHS for examination]. Paratypes: France: 1 ♂ (06.IV. 1999, Elsass, 21km NNW Mullhouse, S Westhalten, Bollenberg, 47 ° 57 'N, 07° 16 E, leg. Schmid-Egger, coll. Hauser); 1 ♂ (20.IV. 1992, Hte Savoia, Bossy/Frangy, leg. Steffen, coll. Stuke); 1 Ψ (05.IV. 1933, Hte Savoie, Etrembières, leg. J. de Beaumont, coll. Stuke); 1 ♂ (14.IV. 1965, Versailles, Grand Parc, leg. R. de Sacy, coll. Stuke); 1 ♂ (31.V. 1965, ditto); 1 ♂ (03.V. 1955, Moisson (S.O), leg. J. d''Aguilar, coll. Stuke); Germany: 1 ♂ (12.IV. 1992, Baden-Württemberg, Ettlingen, Oberweier, Gartenacker, 180m, leg. Doczkal, coll. Stuke); 1 Ψ (12.IV. 1992, Baden-Württemberg, Ettlingen Oberweier, Wiese N Gefällwald, 130m, leg. Doczkal, coll. Stuke); 3 ♂♂, 1 Ψ (31.III. 1991, Baden-Württemberg, Südliche Oberrheinebene, Trockenaue Griessheim, leg. Schmid-Egger, coll. Hauser & Stuke); 1 ♂ (08.IV. 1992, Baden-Württemberg, Südliche Oberrheinebene, Trockenaue Griessheim, leg. et coll. Stuke); 1 Ψ (30.III. 1993, ditto); 1 Ψ (01.V. 1993, ditto); 1 Ψ (29.IV. 1993, Baden-Württemberg, Südliche Oberrheinebene, Burkheim, leg. et coll. Stuke); 2 ♂♂ (09.IV. 1989, Baden-Württemberg, 2km N Heidelsheim, Mönchswald, 170m, leg. Hassler, coll. Stuke); 1 ♂ (03.IV. 2001, Berlin, Grunewald, leg. Schmid-Egger, coll. Stuke); 1 ♂ (01.V. 2001, Brandenburg, 10km NE Neuruppin, Lindow-Gühlen, leg. Schmid-Egger, coll. Stuke); 1 Ψ (27. IV. 1996, Brandenburg, Altenhof SW 1,4km, on Salix cinerea, leg. Blank, coll. Hauser); 1 Ψ (09.IV. 1995, Brandenburg, Friedrichsfelde E, Silbergrasrasen, leg. Blank, coll. Stuke); 1 Ψ (21.V. 1996, Brandenburg, Niederfinow, 52 ° 50,7 'N, 013° 54,4 'E, leg. Flügel, coll. Stuke); 1 ♂ (06.IV. 1994, Brandenburg, Oderberg, Uferstreifen on Salix cf. cinerea, 52 ° 51,9 'N, 14 °01,4'E, leg. Flügel, coll. Stuke); 1 ♂ (28. IV. 1996, Brandenburg, Steinhöfel SE, 750m, on Salix fragilis, leg. Blank, coll. Stuke); 1 ♂ (IV. 1993, Hessen, Darmstadt, leg. et coll Hauser); 1 Ψ (08.V. 1902, Mecklenburg-Vorpommern, Greven, leg. Lange, coll. Stuke); 1 Ψ (19.IV. 1985, Niedersachsen, Ahlhorner Teiche, leg. Barkemeyer, coll. Stuke); 1 ♂ (16.IV. 1988, Rheinland-Pfalz, Arzheim, Ranschbachtal, collector unknown, coll. Stuke); 1 ♂ (IV. 1987, Rheinland-Pfalz, Eisenberg/Erdekaut, leg. et coll. Hauser); 1 ♂, 1 Ψ (06.IV. 2002, Sachsen- Anhalt, Riebau (Klärteiche), leg. Lange, coll. Stuke); Great Britain: 1 ♂ (15.IV. 1981, Cavenham Heath, Suffolk, leg. Perry, coll. Clements); 1 Ψ (5.IV. 1981, Cavenham Heath, Suffolk, leg. Perry, coll. Clements); Greece: 1 ♂ (24.III. 1978, Crete, Vai, 104km E Heraklion, leg. Hohmann, coll. UMBB); 1 ♂ (30.III. 1988, Crete, Paleochora, leg. Schmid-Egger, coll. Hauser); 1 ♂, 1 Ψ (29.III. 2000, Cyprus, 2km NW Asprogia, Argakitis Ayias, 600m, 34 ° 56 'N, 32 ° 37 'E, leg. Bartsch & Berg, coll. Stuke); 1 Ψ (19.III. 1918, Nicola, leg. Fehringer, coll. ZMHB); Latvia: 2 ♂♂ (Curland, Liebau, leg. Siebert, coll. Stuke & Hauser); Morocco: 1 ♂ (17.- 19.IV. 1989, Azrou, Ifrane area, 1400- 2000m, leg. Zool. Mus. Copenhagen. exp., coll. Stuke); Spain: 1 Ψ (02.IV. 1926, Vicalvara pr. Madrid, leg. Lindberg, coll. NHCM); Switzerland: 1 ♂ (1888, Sierre, coll. ETHZ ex coll. Huegenin): Turkey: 1 ♂ (03.V. 1992, Province Antalya, Bey-gebirge near Aslanbutak W Kemer, 500m, leg. Ziegler & Lange, coll. Ziegler); 1 ♂ (23.V. 1988, Province Konya, Hill 2km SE Sefaköy, (Kizilören, Daġy) WSW Konya, c. 37 ° 48 'N, 32 ° 12 'E, 1400m, leg. Ziegler & Lange, coll. Ziegler). = Myopa strandi auct., nec Duda, 1940 Literature: Collin (1960, under “ Myopa strandi Duda (1940) ”); description, key. —Bańkowska (1979, under “ Myopa strandi Duda, 1940 ”): description, key. — Chvála (1965, under “ Myopa strandi Duda, 1940 ”): description, key. Description: Head: Palp blackish-brown or brown. Black hairs on parafacialia and/or gena always present and often quite long, in most specimens equalling or exceeding length of postpedicel. Thorax: Posterior margin of mesoscutum orange-brown, with fine grey dusting which often extends around the whole of the posterior margin. Katepisternum orange-brown. Underside of scutellum mostly orange-brown, like the upper side. Hairs of mesoscutum long, those at the anterior margin at least half as long as those at the posterior margin. Femora and tibiae usually with darker brownish markings. Wing veins usually weakly margined brownish, sometimes unmargined. Wing length 5.4–8.7mm. Abdomen: Typically blood-red, occasionally orange-brown. Tergite 1 orange-brown at side-margins, the disc with darker coloration which usually extends as far as the posterior margin. Tergite 2 reddish orange-brown, rest of tergites darker reddish-brown. Tergites 3–4 usually only dusted on sides at the posterior margin, especially in ♂♂. In ΨΨ there is usually more extensive dusting along the posterior margin, although this is mainly confined to the depressed posterior marginal area which is bounded-off from the rest of the tergite by an impressed line or crease. Tergite 5 may rarely be dusted on whole length submedially, but is more usually undusted medially on whole length. In ΨΨ there is usually dusting on the depressed posterior margin of tergite 5. Hairs on tergite 6 longer than diameter of hind tibia, occasionally only about as long. In ♂♂ these hairs often as long or longer than hind metatarsus. Genitalia: ♂♂ — Epandrium in side view as shown in Fig. 7, only very slightly expanded ventrally to form a weak vesicle which bears long microtrichia. Angle between anterior margin and underside of epandrium is about rightangled. Posterior surstylus fairly pointed triangular, usually somewhat longer than width at base. Epandrial plate covered with microtrichia. ΨΨ —Sternite 7 as shown in Fig. 14, rather long and somewhat attenuated towards base. Lateral tooth of apical syntergosternite relatively short, about 1.5–1.75 times as long as its width at base (Fig. 21).Published as part of Stuke, Jens-Hermann & Clements, David K., 2008, Revision of the Myopa testacea Species-Group in the Palaearctic Region (Diptera: Conopidae), pp. 1-26 in Zootaxa 1713 on pages 12-13, DOI: 10.5281/zenodo.27411
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