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Article
Large third-order nonlinear optical properties of C70 fullerene in the infrared regime
The nonlinear third-order optical susceptibility of C70 in a toluene solution is measured for the first time by the method of degenerate four-wave mixing using 10 ns laser pulses at 1.06 μm. The third-order susce...
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Article
Molecular mechanism of the inhibitory effect of methylation outside the recognition sequence of restriction endonuclease Pvu II on its cleavage activity
In 1991, we found that methylation outside the Pvu II recognition sequence could partially inhibit its cleavage activity. To clarify the molecular mechanism, three plasmids with different methylation states we...
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Article
Os isotopic composition of the earth’s primitive upper mantle
The osmium isotopic ratio of187Os/188Os ranging from 0.126 to 0.127 for the primitive upper mantle (PUM) is obtained according to the correlation between187Os/188Os and Al2O3 of mantle-derived xenoliths and oroge...
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Article
Menadione-induced apoptosis and its mechanism in plants
Menadione can induce apoptosis in tobacco protoplasts. Typical characteristics are detected including the condensation of chromatin, the formation of apoptotic bodies and the degradation of genomic DNA into “D...
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Article
CSIRO’s multiphase reaction models and their industrial applications
The status and ongoing work on a multiphase reaction model developed at the Commonwealth Scientific & Industrial Research Organization are outlined in this article. The package enables metallurgists to simulat...
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Article
Magnetostratigraphy of Late Cenozoic fossil mammals in the northeastern margin of the Tibetan Plateau
A number of fossil mammals have been found in the very thick Cenozoic stratigraphy of the Guide Basin in the northeastern margin of the Tibetan Plateau. Some of these are of great significance in mammal evolut...
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Article
Relationship between Arctic Oscillation and Pacific Decadal Oscillation on decadal timescale
The relationship between the Pacific Decadal Oscillation (PDO) and the Arctic Oscillation (AO) on decadal timescale in the extended winter (November–March) is investigated in this study. The results indicate t...
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Article
Positive feedback of winter ocean-atmosphere interaction in Northwest Pacific
Using monthly mean atmospheric reanalysis data and oceanic assimilation data product, the winter ocean-atmosphere interaction in middle and high latitude in Northwest Pacific was studied. Key regions were chos...
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Article
Characteristics of the crustal structure and hypocentral tectonics in the epicentral area of Nan’ao earthquake (M7.5), the northeastern South China Sea
1918 Nan’ao earthquake (M7.5) occurred in the northeast coastal areas of Guangdong Province. With the seismogeological survey of the epicentral area and history materials analyses, the earthquake epicenter was...
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Article
Genetic structure and diversity of Oryza sativa L. in Guizhou, China
Preserving many kinds of rice resources and rich variations, Guizhou Province is one of the districts with the highest genetic diversity of cultivated rice (Oryza sativa L.) in China. In the current research, gen...
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Article
Characteristics of the short rachillae of rice from archaeological sites dating to 7000 years ago
The abscission layer formed on a pedicel situated at the basal part of a short rachilla is an important characteristic for discriminating between wild, japonica, and indica rice. The short rachillae of paddy rice...
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Article
Relationship between the temporal-spatial distribution of archaeological sites and natural environment from the Paleolithic Age to the Tang and Song Dynasties in the Three Gorges Reservoir of Chongqing area
The temporal-spatial distribution features including time distribution, horizontal and vertical spatial distribution of archaeological sites from the Paleolithic Age to the Tang and Song Dynasties in the Three...
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Article
Characteristics of stemflow for sand-fixed shrubs in Mu Us sandy land, Northwest China
Little work has been done on stemflow for desert shrubs in China. This study measured stemflow in two shrubs of Salix psammophila C. Wang et Chang Y. Yang and Artemisia sphaerocephala Krasch in Mu Us sandy land a...
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Article
The development of silicate matrix phosphors with broad excitation band for phosphor-convered white LED
This paper briefly reviews the recent progress in alkaline earth silicate host luminescent materials with broad excitation band for phosphor-convered white LED. Among them, the Sr-rich binary phases (Sr, Ba, C...
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Article
Grenvillian orogeny in the Southern Cathaysia Block: Constraints from U-Pb ages and Lu-Hf isotopes in zircon from metamorphic basement
Metamorphic basement rocks in the Cathaysia Block are composed mainly of meta-sediments with different ages. New zircon U-Pb geochronological results from the meta-sedimentary rocks exposed in the Zengcheng an...
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Article
Optical limiting of niobic tellurite glass induced by self-trapped exciton absorption of the AgCl nanocrystal dopant
Niobic tellurite glass doped by silver chloride nanocrystal was prepared with the melting-quenching and heat treatment method, and the self-trapped exciton absorption band of the silver chloride nanocrystal wa...
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Article
Characterization of Fe-S minerals influenced by buried ancient woods in the intertidal zone, East China Sea
An ancient wood layer dated at about 5600 cal. a BP by AMS14C dating was discovered in the intertidal zone, East China Sea. Samples affected by ancient woods, including fresh coast bedrock, weathering bedrock, se...
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Article
Open AccessThe occurrence and significance of C25HBI in Cenozoic saline lacustrine source rocks from the Western Qaidam Basin, NW China
The saline lacustrine deposit of the Oligocene Lower Ganchaigou Formation is the main source rock for the Western Qaidam Basin, NW China. In this study, abundant highly branched isoprenoids with 25 carbon atom...
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Article
Open AccessVariations in carbon isotopic composition in the subcontinental lithospheric mantle beneath the Yangtze and North China Cratons: Evidence from in-situ analysis of diamonds using SIMS
The components and evolution of subcontinental lithospheric mantle beneath the North China Craton and the Yangtze Craton is a current topic in the geological study of China and the carbon isotopic composition ...
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Article
Synthesis and luminescent properties of BaGd2O4:Dy3+, an novel scintillating phosphor
The BaGd2−x O4:xDy3+ (0 ≤ x ≤ 0.08) phosphors were synthesized at 1,300 °C in air by the solid-state reaction route. The as-synthesized phosphors were characterized by X-ray powder diffraction, ph...