882 research outputs found
Russian empire
No full textN.R. Hewitt ; drawn and engraved for Thomson's new general atlasTitelkartusche oben Mitte ; rechts oben No. 36Massstab in graphischer Form (British Statute Miles) ; Nullmeridian GreenwichUrsprungswerk: Bl. 36 von "A new general atlas" von John Thomson, Edinburgh 181
Japanagromyza tristella Thomson
No full textJapanagromyza tristella (Thomson) Agromyza tristella Thomson, 1869: 609. Japanagromyza tristella (Thomson): Spencer, 1965 a: 25. Japanagromyza variihalterata (Malloch, 1914): Sasakawa, 1961: 334. Japanagromyza nawai Kato, 1961: 197. Japanagromyza indica Ipe, 1971: 167. Remarks. This is a common leafminer of Pueraria and Glycine spp. in Oriental and Palaearctic regions, and probably other hostplants in Fabaceae, and is widely distributed throughout Oriental region to Melanesia and Japan. Material examined. PHILIPPINES – Ƥ, Albay Prov., 16 km NW of Lagaspi, Mt. Mayon, 1200–1800 m, 15. V. 1962, H.M.Torrevillas; Ƥ, Luzon, Camarines Sur, Mt. Isarog, 800 m, 27–30. IV. 1963, Torrevillas, light trap; Ƥ, Fyan, 900–1000 m, 11. VII. 1963, N.R. Spencer (BPBM). THAILAND – 3, Chanthaburi Prov., Prew, 45 m, 25–30. IV. 1958, T.C. Maa; 3, Chiangdao, 5–11. V. 1958, Maa; Ƥ, Chiangmai Prov., Fang, Agricultural Exp. Station, 600 m, 14. VI. 1965, P.D. Ashlock, Malaise trap (BPBM); 43,Ƥ, Loei Prov., Phu Ruea National Park, office, 17 º 28.805 ΄N, 870 m, 12-19. VII. 2006, P. Tamtip, Malaise trap; Huay Taey Ditch, 17 º 30.128 ΄N, 1233 m, 12–19. VIII. 2006, N. Jaroenchao, Malaise trap; Pah Lo Noy, 17 º 30.502 ΄N, 1343 m, 11–12. IX. 2006, N. Jaroenchao, Pan trap (NHMLA).Published as part of Sasakawa, Mitsuhiro, 2010, A review of the Oriental Japanagromyza Sasakawa (Diptera: Agromyzidae), with descriptions of four new species, pp. 16-32 in Zootaxa 2485 on page 29, DOI: 10.5281/zenodo.19551
East India Isles & Australia [cartographic material] /
No full textMap of Australasia with notes on discoveries.; Vignette: View in New Zealand.; Plate XXXII probably from: A general atlas, containing maps illustrating some important periods in ancient history ; and distinct maps of the several empires, kingdoms and states, in the world, from original drawings, according to the latest treaties / by J. Wyld, and engraved by N.R. Hewitt. Edinburgh : Printed for John Thomson & Co., [1823?]; Map is from a later edition of atlas first published 1819.; NUC Pre-1956 Imprints, Vol.676, p.511.; Tooley, 1558; Also available in an electronic version via the Internet at: http://nla.gov.au/nla.map-t1558
East India Isles & Australia [cartographic material] /
No full textMap of Australasia with notes on European discoveries of Australia.; Vignette showing Maori canoe: View in New Zealand.; Plate XXXI probably from: A general atlas, containing maps illustrating some important periods in ancient history ; and distinct maps of the several empires, kingdoms and states, in the world, from original drawings, according to the latest treaties / by J. Wyld, and engraved by N.R. Hewitt. Edinburgh : Printed for John Thomson & Co., 1819.; NUC Pre-1956 Imprints, Vol. 676, p. 511.; Tooley, 1557; Also available in an electronic version via the Internet at: http://nla.gov.au/nla.map-t1557
Detection and characterization of a vinyl chloride plume inside an urbanized area
No full textThe paper deals with a sandy confined aquifer of alluvial origin
contaminated by vinyl chloride and located in the Po Valley immediately to
the south of the Po River and 5 km to the north of the city of Ferrara (northern
Italy). The investigation identified, inside a mainly urbanized area, a plume
with a length of 1.7 km and a maximum width of 0.3 km with vinyl chloride
(VC) concentrations of up to more than 11 000 ppb and total absence of other
chlorinated ethanes, ethenes, and ethylene. To optimize the VC analysis,
short-term low-flow purging using peristaltic and inertial pumps were used to
collect samples
Performance of a micro-engineered ultrasonic particle manipulator
No full textAn ultrasonic microfluidic particle manipulator has been modeled and its experimentally measured separation performance has been compared with the modeled results for 1 µm latex particles, and yeast particles in water
Dynamics of inertial disk particles in turbulent channel flow
No full textA suspension of oblate spheroidal (disk-like) particles in turbulent channel flow has been investigated with focus on the translational and rotational particle statistics. The effects of particle aspect ratio and inertia have been explored. The disk-like particles exhibited a significant preferential orientation in the plane of the mean shear. The influence of the particle shape on the orientation and rotation diminished as translational inertia increased from Stokes number 1 to 30. Isotropization of both orientation and rotation could be observed in the core region of the channel. Keywords: oblate spheroids, preferential orientation, shape effects, inertia effects
Inertial effects on non-spherical particle rotation on turbulent channel flow
No full textWe investigated the rotation of non-spherical particles (rod-like and disk-like) in turbulent channel flow with focus on inertial effects. A direct numerical simulation (DNS) with an Eulerian-Lagrangian approach was performed. A wide range of particle aspect ratios, λ, ranging from 0.01 to 50 were considered for Stokes numbers St equal to 1 and 30. In the particle reference frame, statistical results reveal the importance of shape effect on the particle rotation. The rods (λ > 1) are spinning (rotation about their symmetry axis) more than tumbling (rotation about other axes) whereas disks (λ < 1) behave oppositely. With increasing particle inertia, i.e. higher St, the preferential tumbling of the disks and the spinning of the rods are reduced. We ascribe these observations to the varying degree of alignment of the particle symmetry axis with the fluid vorticity vector
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Thomson scattering diagnostic for the Microwave Tokamak Experiment
No full textThe Thomson-scattering diagnostic system (TSS) on the Microwave Tokamak Experiment (MTX) at LLNL routinely monitors electron temperature (T{sub e}) and density. Typical measured values at the plasma center under clean conditions are 900 {plus minus} 70 eV and 1 to 2 {times} 10{sup 14} ({plus minus}30%) cm{sup {minus}3}. The TSS apparatus is compact, with all elements mounted on one sturdy, two-level optics table. Because of this, we maintain with minimum effort the alignment of both the ruby-laser input optics and the scattered-light collecting optics. Undesired background signals, e.g., plasma light as well as ruby-laser light scattered off obstacles and walls, are generally small compared with the Thomson-scattered signals we normally detect. In the MTX T{sub e} region, the TSS data are definitely fitted better when relativistic effects are included in the equations. Besides determining the temperature of the Maxwellian electron distribution, the system is designed to detect electron heating from GW-level free-electron laser (FEL) pulses by measuring large wavelength shifts of the scattered laser photons. TSS data suggest that we may indeed by able to detect these electrons, which can have energies up to 10 keV, according to computer simulation. 7 refs., 4 figs
A comparison of rosseland-mean opacities from op and opal
No full textMonochromatic opacities from the Opacity Project (OP) have been augmented by hitherto missing inner-shell contributions. OP Rosseland-mean opacities, κR, are compared with results from OPAL for the six elements H, He, C, O, S and Fe. The OPAL data are obtained from the project's website. Agreement for H is close everywhere except for the region of log(T) 6 and log(R) −1 (R=ρ/T36 where ρ is mass density in g cm3 and T6= 106×T with T in K). In that region κR(OPAL) is larger than κR(OP) by up to 13 per cent. The differences are caused by different equations of state (EOS). In the region concerned, OP has the H ground state undergoing dissolution, leading to a small H-neutral ionization fraction, while OPAL has larger values for that fraction. A similar difference occurs for He at log(R) −1 and log(T) 6.4, where OP has the He+ ground state undergoing dissolution. The OPAL website does not provide single-element Rosseland means for elements other than H and He. Comparisons between OP and OPAL are made for mixtures with X= 0.9, Z= 0.1 and Z containing pure C, O or S. There are some differences: at the lower temperatures, say log(T) ≤ 5.5, owing to differences in atomic data, with the OP R-matrix data probably being the more accurate; and at higher temperatures mainly owing to differences in level populations resulting from the use of different EOS theories. In the original OP work, R-matrix data for iron were supplemented by data obtained using the configuration-interaction (CI) code superstructure. The experiment is made of replacing much of the original iron data with new data from the CI code autostructure. Inclusion of intercombination lines gives an increase in κR of up to 18 per cent. The OPAL website does not allow for Z containing pure iron. Comparisons are made for an iron-rich mixture, X= 0.9, Z= 0.1 and Z containing C and Fe with C:Fe = 2:1 by number fraction. There are some differences between OP and OPAL for that case: the OP 'Z-bump' in κR is shifted to slightly higher temperatures, compared with OPAL. Overall, there is good agreement between OP and OPAL Rosseland-mean opacities for the six elements, but there are some differences. Recent work has shown that helioseismology measurements give a very accurate value for the depth of the solar convective zone, RCZ, and that, taking account of recent revisions in abundances, solar models give agreement with that value only if opacities at RCZ are about 20 per cent larger than OPAL values. For the six-element mix at RCZ we obtain κR(OP) to be larger than κR(OPAL) by 5 per cent
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