143 Result(s)
within
Earth Sciences, general
Physics, general
Lu**g Sun
Science, Humanities and Social Sciences, multidisciplinary
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Article
Open AccessDevelopment of Fe(III)-containing ether-functionalized imidazolium ionic liquids for aryl Grignard cross-coupling of alkyl halides
A series of Fe(III)-containing imidazolium-based ionic liquids containing ether substituents, including [C3OMim][FeCl4] (1, [C3OMim] = 1-(2-methoxyethyl)-3-methylimidazolium), [C3O i ...
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Article
Open AccessEstimation of crop water requirement based on principal component analysis and geographically weighted regression
In this study the principal component analysis (PCA) and geographically weighted regression (GWR) are combined to estimate the spatial distribution of water requirement of the winter wheat in North China while...
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Open AccessEmerged fossil corals on the coast of northwestern Hainan Island, China: Implications for mid-Holocene sea level change and tectonic uplift
Fossil corals are widespread on the coast of northwestern Hainan Island, China. Most of these corals are exposed during low tide levels, indicating that a higher sea level may have existed during their life ti...
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Article
Open AccessThiol-yne click polymerization
The research on using thiol-ene click reaction to synthesize sulfur-containing polymers with topological structures and advanced functional properties is a hot topic. However, the application of the thiol-yne ...
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Article
Open AccessControlling PCBM aggregation in P3HT/PCBM film by a selective solvent vapor annealing
A selective solvent vapor, i.e., cyclohexanone or isopropyl benzene, which is a poor solvent for poly(3-hexylthiophene-2,5-diyl) (P3HT) and a good solvent for fullerene derivative [6,6]-phenyl-C61-butyric acid...
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Article
Open AccessCytotoxicity and genotoxicity of multi-walled carbon nanotubes with human ocular cells
Cytotoxicity and genotoxicity of plasma-modified multi-walled carbon nanotubes (MWCNTs), including hydroxyl-MWCNTs (MWCNT-OH), carboxyl-MWCNTs (MWCNT-COOH) and pristine MWCNTs, with human ocular cells (e.g. re...
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Article
Open AccessA multiple-labelling method for cells using Au nanoparticles with different shapes
An important and difficult issue is simultaneously identifying the detailed locations of various molecules on the cell surface, as this identification requires a synergistic effect between more than one molecu...
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Open AccessIsolation and characterization of class I MHC genes in the giant panda (Ailuropoda melanoleuca)
Artificial breeding is an important project to protect, recover and reintroduce endangered species. Knowledge of the population’s genetic diversity at functional loci is important for the establishment of effe...
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Article
Open AccessNumerical study of flow pattern modulation in a vertical phase separation condenser tube
The passive phase separation concept was proposed to modulate flow patterns for heat transfer enhancement. By the flow pattern modulation, the gas tends to be near the wall and the liquid tends to be in the tu...
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Article
Open AccessResponse of 210Pbex inventory to changes in soil erosion rates on uncultivated land
This analysis studies changes in the variation 210Pbex inventory in soil in response to soil erosion on uncultivated land. A model was created to fit the response of 210Pbex inventory to variations in soil erosio...
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Article
Open AccessExploring the epidemic transmission network of SARS in-out flow in mainland China
The changing spatiotemporal patterns of the individual susceptible-infected-symptomatic-treated-recovered epidemic process and the interactions of information/material flows between regions, along with the 200...
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Article
Open AccessChanges in precipitation and extreme precipitation in a warming environment in China
This study analyses the decadal changes in winter precipitation and extreme precipitation in a warming environment in China. The results show that, together with a trend of winter warming in China, winter prec...
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Article
Open AccessCharacteristics of onset and dam** in a standing-wave thermoacoustic engine driven by liquid nitrogen
We explore characteristics of onset and dam** in a thermoacoustic engine (TE) driven by cryogens instead of conventional heat sources above the ambient temperature by a comprehensive study of a self-made sta...
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Article
Open AccessEffect of rare earth elements on the structures and mechanical properties of magnesium alloys
By means of first-principles calculations, we have investigated the effects of rare earth elements (REEs) on the structures and mechanical properties of magnesium. The lattice parameters, elastic constants, bu...
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Article
Open AccessRoles of flanking sequences in the binding between unimolecular parallel-stranded G-quadruplexes and ligands
G-quadruplexes attract more and more attention in recent years. Numerous small molecules which can induce or stabilize the formation of G-quadruplexes have been investigated on the purpose of anticancer drug d...
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Article
Open AccessSynthesis, structure of iron(III)-containing imidazolium salts and their catalytic activity in the alkylation of aryl Grignard reagents
A series of iron(III)-containing imidazolium salts of the general formula [DRim][FeX4] (R = 2,6-diisopropylphenyl, IPr, X = Cl, 1; R = IPr, X = Br, 2; R = tertbutyl, t Bu, X = C...
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Article
Open AccessDiameter-controlled growth of aligned single-walled carbon nanotubes on quartz using molecular nanoclusters as catalyst precursors
Molecular nanoclusters containing Fe and Mo atoms have been used as catalyst precursors for the growth of single-walled carbon nanotubes (SWNTs) on stable temperature (ST)-cut quartz substrates by chemical vap...
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Article
Open AccessKinetics of thiocyanate orientation conversion on Pt surface studied by in situ step-scan time-resolved microscope FTIR spectroscopy
Fast surface dynamic processes of thiocyanate adsorbed on a nanostructured Pt microelectrode were studied by in situ step-scan time-resolved microscope FTIR spectroscopy (in situ SSTR-MFTIRS) at a time resolution...
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Article
Open AccessDetwinning-induced reduction in ductility of twinned copper nanowires
Detwinning is a unique deformation mechanism of nanotwinned metals with twin lamellae thickness down to a few nanometers. In this work we investigate the impact of detwinning mechanism on the tensile ductility...
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Article
Open AccessEffects of microbial processes on the fate of arsenic in paddy soil
Arsenic (As) is a metalloid toxic to organisms including humans. Arsenic in rice represents a significant exposure pathway for the general population, particularly for those subsisting on rice. Arsenic transfo...
