Zobrazeno 1 - 10
of 57
pro vyhledávání: '"J. H. Kern"'
Autor:
J. H. KERN
Publikováno v:
Reinwardtia, Vol 3, Iss 1, Pp 27-66 (2015)
Since 1884 the name Cyperus zollingeri Steud. has been misappliedto a common tropical species, the correct name of which is C. tenuieulrnisBoeck. It appears that C. rubroviridis Chermez. (1919) and C. ramosiiKiikenth. (1925) are synonymous with C. zo
Externí odkaz:
https://doaj.org/article/b80dd38e878546c38469201c2d442353
Autor:
J. H. KERN
Publikováno v:
Reinwardtia, Vol 1, Iss 2, Pp 107-170 (2015)
1. In the following pages an account of the genus Viburnum in Malaysia is presented. 2. The distribution of its species is briefly discussed and a map relating to it added. 3. The main part of the present paper consists of keys to the sections an
Externí odkaz:
https://doaj.org/article/6f35185cd104422fb9e41bbecebe32c8
Autor:
J. H. Kern
Publikováno v:
Reinwardtia, Vol 6, Iss 2, Pp 145-154 (2014)
This supplement contains an account of a rather large number of Thailand specimens, collected by A. F. G. Kerr, Marcan, Put, and some others, kindly sent on loan to me by the Keeper of the British Museum (Nat. Hist.), Botany Department, Mr J. E. Dand
Externí odkaz:
https://doaj.org/article/f9679fcbf3bd4496bab2c76e8ab5bc2e
Autor:
J. H. KERN
Publikováno v:
Reinwardtia, Vol 2, Iss 1 (2015)
In "Reinwardtia" (1: 157. 1951) I published a new species of Vibur-num from Mount Kinabalu, Borneo, under the name of V. clemensae. Thedescription was drawn up after fruiting specimens in the Herbarium ofthe Arnold Arboretum. Unfortunately flowers we
Externí odkaz:
https://doaj.org/article/b25462aa9f3647639206fcd68c40d0db
Autor:
J. H. KERN
Publikováno v:
Reinwardtia, Vol 1, Iss 4 (2015)
Subgen. Cyperus; sect. Iriae Kunth. — Annuus. Culmi erecti, tenues, triquetri, laeves, 1—7 dm alti, 1—2 mm crassi, inferne paucifoliati. Folia culmo breviora vel aequilonga, plana, flaccida, longe acuminata, in supe- riore parte scabra, 1—5 m
Externí odkaz:
https://doaj.org/article/c04dcd8e3ec3455ca7da60387e09587c
Autor:
J. H. KERN
Publikováno v:
Reinwardtia, Vol 4, Iss 1, Pp 89-97 (1956)
The difficulties encountered in this group could not be solved bythe application of this key to the numerous specimens I could study. Inthe type specimen of Scirpus pakapakensis Stapf from Borneo, Mt. Kina-balu, the stems are not trigonous. Although
Externí odkaz:
https://doaj.org/article/f6ea8a1b0bc24ac389fd98f81368b7fb
Autor:
R. Edge, K. Krawec, K. Hutchings, P. S. Miyagawa, M. Jenkinson, J H Kern, I. Dawson, T. Kelley
Publikováno v:
Kelley, T, Hutchings, K, Jenkinson, M, Dawson, I, Krawec, K, Miyagawa, P S, Kern, J H & Edge, R 2019, ' In situ monitoring of PVDF ultrasound transducers under gamma irradiation ', Nondestructive testing and evaluation, pp. 1-15 . https://doi.org/10.1080/10589759.2019.1668943
Ultrasonic transducer (UT) systems are used for non-destructive testing and evaluation across a wide range of industries. In the nuclear industry, radiation damage of the UTs can lead to performance degradation or even complete failure. We have inves
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6fd071ea9a44b0e357dd618005d612c9
https://doi.org/10.1080/10589759.2019.1668943
https://doi.org/10.1080/10589759.2019.1668943
Publikováno v:
Journal of Materials Processing Technology. :1344-1349
The casting of amorphous iron-based wires of sub-millimetre diameters have been studied in a multiple jet casting condition. The effects of process parameters; melt jet to water velocity ratio (vr), melt super heat, nozzle diameter, nozzle clearance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::905586c348f7090ab8cf71be50f32391
https://doi.org/10.1016/j.jmatprotec.2004.04.204
https://doi.org/10.1016/j.jmatprotec.2004.04.204
Publikováno v:
Materials Letters. 20:5-9
Nanocrystalline alloy wire of composition Fe 73.5 Si 13.5 B 9 Nb 3 Cu was prepared by annealing of wire samples cast directly by the rotating water bath process. The as-cast structure of the wire was sensitive to the melt temperature prior to the cas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e6260602c2fd7c1d7a28c91dc7c732b
https://doi.org/10.1016/0167-577x(94)90139-2
https://doi.org/10.1016/0167-577x(94)90139-2
Publikováno v:
Materials Letters. 23:55-57
An investigation into the multi-jet casting of amorphous alloy wire is described. The effects of nozzle design and of orifice spacing on the ability to cast uniform amorphous wire are briefly discussed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70c65c380593b02c1b2a298c957c1d07
https://doi.org/10.1016/0167-577x(95)00024-0
https://doi.org/10.1016/0167-577x(95)00024-0