Results 11 to 20 of about 500,009 (287)
Novitates Caribaea, 2022 The genus of land tortoises Chelonoidis had a wide distribution across the Caribbean and Bahamian Archipelago during the Late Pleistocene and Holocene. Two extinct species of this genus, C. marcanoi Turvey et al., 2017 and C.
Lázaro W Viñola-López, Juan N Almonte
doaj +1 more source
Dizhi lixue xuebao, 2023 The study of the ancient Luanhe alluvial fan has focused more on the Holocene, and no systematic study has been conducted on its Pleistocene evolution and variation.
CHEN Hongqiang +6 more
doaj +1 more source
Pore structure and physical properties of Quaternary weak diagenetic shales
Shiyou shiyan dizhi, 2022 The biogas of Quaternary weak diagenetic shale has a wide exploration prospect, and the understanding of pore structure and physical properties of these shales is conducive to promote the geological theory of shale biogas reservoir.
Xianglu TANG +6 more
doaj +1 more source
Classification of quaternary Hermitian self-dual codes of length 20 [PDF]
, 2010 A classification of quaternary Hermitian self-dual codes of length 20 is given. Using this classification, a classification of extremal quaternary Hermitian self-dual codes of length 22 is also given.Comment: 9 pages.
Harada, Masaaki, Munemasa, Akihiro
core +1 more source
Carbinatitic magmatism evidence in the Quaternary volcanic rocks in the west of Nowbaran, NW of Iran [PDF]
پترولوژی, 2019 The fourteen numbers of ultrabasic volcanoes eruption in the west of Nowbaran are located in the west margin of Iranian central zone near to the Sanandaj-Sirjan zone.
Bahman Rahimzadeh +3 more
doaj +1 more source
地质科技通报, 2021 The development of domestic high resolution remote sensing satellite technology provides a new means for the investigation of macroscopic, local and detailed characteristics of the Quaternary.Alluvial-diluvial fans, valley terraces, glacial deposits are ...
Zhijun Zhang +7 more
doaj +1 more source
Impact of the capping layers on lateral confinement in InAs/InP quantum dots for 1.55 um laser applications srudied by magneto-photoluminescence. [PDF]
, 2005 We have used magnetophotoluminescence to study the impact of different capping layer material combinations (InP, GaInAsP quaternary alloy, or both InP and quaternary alloy) on lateral confinement in InAs/InP quantum dots (QDs) grown on (311)B orientated ...
Caroff, P. +9 more
core +3 more sources
Dizhi lixue xuebao, 2023 Quaternary volcanic rocks are widely distributed in the Leizhou Peninsula, but the age of volcanic formation remains controversial. This study used the high-precision laser stepwise heating 40Ar/39Ar method to date the age of volcanic samples from the ...
LI Xiang +4 more
doaj +1 more source
Biostratigraphic and magnetostratigraphic synthesis of the Celebes and Sulu Seas, Leg 124 [PDF]
, 1991 During ODP Leg 124, late middle Eocene to Quaternary sediment sequences were recovered from 13 holes drilled at five sites in the Celebes and Sulu basins. Paleomagnetic measurements and biostratigraphic studies using calcareous nannofossils, planktonic
Hsu, V. +7 more
core +1 more source
Enantioselective Total Synthesis of Macfarlandin C, a Spongian Diterpenoid Harboring a Concave-Substituted cis-Dioxabicyclo[3.3.0]octanone Fragment. [PDF]
, 2020 The enantioselective total synthesis of the rearranged spongian diterpenoid (-)-macfarlandin C is reported. This is the first synthesis of a rearranged spongian diterpenoid in which the bulky hydrocarbon fragment is joined via a quaternary carbon to the ...
Allred, Tyler K +4 more
core +2 more sources