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118 Result(s)
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Article
Size and magnetic field dependence of strong coupling magnetopolaron in quantum dot
By using the variational method of Pekar type, the ground state and the first excited state of the strong coupling magnetopolaron in cylinder-shape quantum dot are considered. The results show that, with the i...
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Article
Prosodic modification of Chinese speech based on sinusoidal model
Modification on time-scale and pitch-scale of Chinese syllable based on sinusoidal model is presented in this paper. Firstly, the short-term speech is decomposed into a sum of sinusoidal waves of different mag...
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Article
Energy levels of strong coupling magnetopolaron in quantum dot
By using variational method of Pekar type, we have studied the energy levels of strong coupling magnetopolaron in disk-shape quantum dot(QD) and quantum well(QW). Our results show that, with the increasing mag...
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Article
Discovery of low-mature hydrocarbon in manganese nodules and ooze from the Central Pacific deep sea floor
Extracts from manganese nodules and ooze from the Central Pacific deep sea floor were analyzed using the chromatogram-mass spectrum, and it was found that most of the biomarker molecules are of the low-mature ...
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Article
Bioturbation in near-surface sediments from the COMRA Polymetallic Nodule Area: Evidence from excess210Pb measurements
In order to evaluate bioturbation in sediments from the COMRA Polymetallic Nodule Area in the northeast tropical Pacific, excess210Pb profiles in sediments cores collected with multiple corers during R/V DAYANGYI...
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Article
Analysis of cytochrome P450 genes in silkworm genome (Bombyx mori)
We have searched the Bombyx mori genome for members of the major enzyme family, the Cytochrome P450s, which carry out multiple reactions to enable organisms to rid themselves of foreign compounds. As a result, 86...
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Anaerobic oxidation of methane: Geochemical evidence from pore-water in coastal sediments of Qi’ao Island (Pearl River Estuary), southern China
The concentrations of CH4 and SO 4 2− in pore-water and the carbon isotope compositions of total dissolved inorganic (ΣCO2) and CH4 were determined for three c...
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Article
Biomineralization of phototrophic microbes in silica-enriched hot springs in South China
Microbial mats in two hot springs in South China were sampled for the research of mineralization of microbes and its mechanism by the methods of geology and modem biology. The results show that hot spring micr...
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Article
Detection of methane plumes in the water column of Logatchev hydrothermal vent field, Mid-Atlantic Ridge
During DY105-17 cruise onboard the R/V “Da Yang Yi Hao” in 2005, methane concentrations in the water column above Logachev hydrothermal vent field were measured by applying strip**/trap**-gas chromatographic ...
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Article
Bio-oxidation of pyrite, chalcopyrite and pyrrhotite by Acidithiobacillus ferrooxidans
This paper deals with the bio-oxidation processes by Acidithiobacillus ferrooxidans of pyrite, chalcopyrite and pyrrhotite. Our experimental results show distinctive bio-oxidation characteristics for the three su...
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Article
Microbe-related precipitation of iron and silica in the Edmond deep-sea hydrothermal vent field on the Central Indian Ridge
Microbial mats, several millimeters thick and brown-yellow to white in color, were collected in hollow inside of chimney structure from Edmond hydrothermal field on the Central Indian Ridge. Microbes with shap...
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Article
Early-stage mineralization of hydrothermal tubeworms: New insights into the role of microorganisms in the process of mineralization
As an important part of marine hydrothermal system, hydrothermal vent faunas live in hydrothermal inorganic environment and closely interact with hydrothermal inorganic environment. Sometimes, they can partici...
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Article
The Abiotic Formation of Hydrocarbons from Dissolved CO2 Under Hydrothermal Conditions with Cobalt-Bearing Magnetite
Conversion of CO2 to organic compounds in hydrothermal systems is important in understanding prebiotic chemical evolution leading to the origin of life. However, organic compounds with carbon number of more than ...
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Article
Open AccessChloroplast genome sequencing analysis of Heterosigma akashiwo CCMP452 (West Atlantic) and NIES293 (West Pacific) strains
Heterokont algae form a monophyletic group within the stramenopile branch of the tree of life. These organisms display wide morphological diversity, ranging from minute unicells to massive, bladed forms. Surpr...
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NGF-dependent retrograde signaling: survival versus death
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Article
Performances improvement of eosin Y sensitized solar cells by modifying TiO2 electrode with silane-coupling reagent
Chemical fixing of xanthene dye (eosin Y) on the surface of TiO2 electrode was carried out by modifying the electrode with silane-coupling reagent to obtain stable dye-sensitized TiO2 electrode. Such silane modif...
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Article
Chromosome sorting and its applications in common wheat (Triticum aestivum) genome sequencing
The large genome size (∼17000 Mb) and complicated DNA structures of common wheat (Triticum aestivum) hamper its genome sequencing. By means of flow cytometry, systematic investigations on individual chromosome so...
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Article
An efficient method of directly cloning chimpanzee adenovirus as a vaccine vector
Adenoviral vectors have shown great promise as vaccine carriers and in gene transfer to correct underlying genetic diseases. Traditionally, cstruction of adenoviral vectors is complex and time consuming. In th...
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Article
Explore the possibility of forming fcc high entropy alloys in equal-atomic systems CoFeMnNiM and CoFeMnNiSmM
The multi-principal high-entropy alloys (HEAs) are promising new alloys. However, it is a challenge to screen out the suitable composition from the diverse combinations. Referring to the prototype AuCu3 with AB3-...
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Article
A genome-scale shRNA resource for transgenic RNAi in Drosophila
Short hairpin RNAs, expressed from microRNA scaffold–containing vectors, efficiently silence gene expression in female germ cells as well as somatic cells in the fly. A genome-wide resource is being developed.