Essay review: Coastal geomorphology and the coastal landform without a name     

Derek Flinn 《Geological Journal》1994,29(1):81-84

  相似文献   

Skeletal Biomineralization: Patterns,Processes and Evolutionary Trends,Volumes I,and II (Atlas & Index) edited by Joseph G. Carter,Van Nostrand Reinhold,New York, 1990. No. of pages: 832 (Vol. I); 101 + 200 plates (Vol. II). Price £65.00 (2 volume set). ISBN 0–442–00620-9 (Vol. I); 0–442–00666-7 (Vol. II)     

D. E. G. Briggs  M. J. Weedon 《Geological Journal》1992,27(1):92-93

  相似文献   

Essay review: Kinematic analysis–-pure nonsense or simple nonsense?     

Derek Flinn 《Geological Journal》1994,29(3):281-284

  相似文献   

A chronology of geological thinking from antiquity to 1899 by Susan J. Thompson,Scarecrow Press Inc., Metuchen,New Jersey and London, 1988. No. of pages: 328. Price £22.10 (hardback). Agents: Bailey Bros and Swinfen,Folkstone     

Derek Flynn 《Geological Journal》1990,25(1):61-61

  相似文献   

American Geological Literature, 1669 TO 1850 by Robert M. Hazen and Margaret Hindle Hazen. Dowden,Hutchinson, Ross Inc., Stroudsburg,Penn. 1980. 431 pp. Price: US $32.00     

Derek Flinn 《Geological Journal》1981,16(2):153-153

  相似文献   

Scientific detector workshop 2022 on-sky performance verification of near-infrared e−APD technology for wavefront sensing and demonstration of e−APD pixel performance to improve the sensitivity of large science focal planes     

Gert Finger  Frank Eisenhauer  Reinhard Genzel  Christopher Mandla  Ian Baker  Domingo Alvarez  Antonio Amorim  Wolfgang Brandner  Christophe Dupuy  Casey Deen  Derek Ives  Leander Mehrgan  Manfred Meyer  Karin Perraut  Guy Perrin  Jörg Stegmeier  Christian Straubmeier  Harald J. Weller  Vincent Isgar 《Astronomische Nachrichten》2023,344(8-9):e20230069

Near-infrared adaptive optics as well as fringe tracking for coherent beam combination in optical interferometry require the development of high-speed sensors. Because of the high speed, a large analog bandwidth is required. The short exposure times result in small signal levels which require noiseless detection. Both requirements cannot be met by state-of-the-art conventional CMOS technology of near-infrared arrays as has been attempted previously. A total of five near-infrared SAPHIRA 320 × 256 pixel HgCdTe e⁻APD arrays have been deployed in the wavefront sensors and in the fringe tracker of the VLTI instrument GRAVITY. The current limiting magnitude for coherent exposures with GRAVITY is m_k = 19, which is made possible with ADP technology. New avalanche photo-diode array (APD) developments since GRAVITY include the extension of the spectral sensitivity to the wavelength range from 0.8 to 2.5 μm. After GRAVITY a larger format array with 512 × 512 pixels has been developed for both AO applications at the ELT and for long integration times. Since dark currents of <10⁻³ e⁻/s have been demonstrated with 1Kx1K e⁻APD arrays and 2Kx2K e⁻APD arrays have already been developed, the possibilities and adaptations of e⁻APD technology to provide noiseless large-format science-grade arrays for long integration times are also discussed.  相似文献   

A note on the glacial and late glacial history of caithness     

Derek Flinn 《Geological Journal》1981,16(3):175-179

It is generally accepted that in the last glaciation Scottish ice from the Moray Firth flowed to the northwest across Caithness depositing shelly drift. Examination of striae along the east coast of Caithness shows that some were formed by ice flowing into and not out of the Moray Firth. It is argued that the flow into the Moray Firth may have occurred in the last glaciation and that the shelly drift may be a relic of an earlier glaciation. The cliffs of Caithness were formed during the Loch Lomond Readvance and have since been raised isostatically and so have been protected from further marine erosion by their own wave-cut platform which can be traced into Orkney where it intersects the present level.  相似文献