679 Result(s)
within
**ufeng **a
Science, Humanities and Social Sciences, multidisciplinary
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Article
Microstructure and mechanical properties of a novel Zr-based bulk metallic glass composite
Zr48.5Cu46.5Al{5}bulk metallic glass (BMG) composites with diameters of 3 and 4 mm were prepared through suction casting in an arc melting furnace by modulating the alloy composition around the monothetic BMG com...
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Article
Variation of soil Δδ 13C values in **feng loess-paleosol sequence and its paleoenvironmental implication
The carbon isotopic compositions of soil organic matter (SOM) and total carbonate (TC) in **feng loess-paleosol sequence have been studied. The δ 13CSOM values vary from −23.8‰ to −20.2‰, ...
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Article
The L-shell ionization of Ho and Os induced by electron impact
The electron-induced L-shell X-ray partial production cross sections, total production cross sections and mean ionization cross sections for Ho and Os have been measured as functions of electron energies from nea...
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Article
Analysis of F1 hybrid and BC1 monosomic alien addition line plants from Brassica oleracea × Sinapis alba by GISH
Sterile and semi-fertile F1 plants were obtained by intergeneric sexual hybridization between paternal Brassica oleracea var. alboglabra (genome CC, 2n=18) and maternal Sinapis alba (genome SS, 2n=24), BC1 plants...
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Article
Preparation of modified SiO2 colloidal spheres with succinic acid and the assembly of colloidal crystals
SiO2 colloidal spheres were synthesized by Stöber method. In order to enhance surface charge of the SiO2 spheres, they were modified with succinic acid. Scanning electron microscope (SEM) shows that the average s...
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Article
C-H···Pd(II) interaction-driven homochiral M helix formation of neutral (R,R)-bis(pyrrol-2-ylmethyl-eneamino) cyclohexane palladium(II) complex
A chiral complex of (R,R)-Pd was prepared by reaction of optically pure (R,R)-bis(pyrrol-2-ylmethyl-eneamino) cyclohexane ligand with Pd(OAc)2·2H2O under the base condition at room temperature. The weak intermole...
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Article
Expression patterns of the rice class I metallothionein gene family in response to lead stress in rice seedlings and functional complementation of its members in lead-sensitive yeast cells
Metallothioneins (MTs) are a group of low molecular mass and cysteine-rich proteins that can chelate heavy-metal ions. In this paper, Northern blot analysis was used to investigate the influence of lead stress...
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Article
Oriented growth and assembly of zeolite crystals on substrates
The aligned array and thin film of zeolites and molecular sieves possess a variety of potential applications in membrane separation and catalysis, chemical sensors, and microelectronic devices. There are two m...
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Article
Open AccessThe complete genome of an individual by massively parallel DNA sequencing
Next-generation sequencing technologies are revolutionizing human genomics, promising to yield draft genomes cheaply and quickly. One such technology has now been used to analyse much of the genetic code of a ...
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Article
Age and genesis of the Myanmar jadeite: Constraints from U-Pb ages and Hf isotopes of zircon inclusions
Myanmar jadeite (jadeitite) is well known for its economical value and distinctive tectonic locality within the collisional belt between India and Eurasian plates. However, it is less studied for its genesis a...
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Article
Infection of Wolbachia may improve the olfactory response of Drosophila
The endosymbiotic bacterium Wolbachia infects various insects and is primarily known for its ability to manipulate host reproduction. Recent investigations reveal that Wolbachia also affects the activity of somat...
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Article
Emissions: taking a collaborative lead will work better
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Article
Preparation of SiO2 microspheres with sodium ions and self-assembly of photonic crystals
SiO2 microspheres were prepared via a novel co-precipitation process. The Na+ ions were introduced by adding sodium chloride and metal sodium in solution systems for improving surface charge of the SiO2 microsphe...
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Article
Trends of the precipitation acidity over China during 1992–2006
The trends of the precipitation acidity from 1992 to 2006 were studied, based on the long-term acid rain observations at 74 sites in China. The results show that there was no remarkable change or extension of ...
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Article
Ultafast organic nonlinear optical molecules and the realization of mesoscopic photonic devices
In the twentieth century, revolutionary changes took place in the human society and people’s life-style due to the improvement of the optoelectronic information technology based on the second-order nonlinear o...
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Article
Open AccessPore-opening mechanism in trimeric P2X receptor channels
The opening of ion channels in response to ligand binding, voltage or membrane stretch underlies electrical and chemical signalling throughout biology. Two structural classes of pore-opening mechanisms have be...
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Article
Open AccessThe Amphimedon queenslandica genome and the evolution of animal complexity
Sponges are an ancient group of animals that diverged from other metazoans over 600 million years ago. Here we present the draft genome sequence of Amphimedon queenslandica, a demosponge from the Great Barrier Re...
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Article
Evolutionary mechanism of b-oriented TS-1 film on porous α-Al2O3 supported chitosan surface in hydrothermal reactions
The acid-base titration, atomic force microscopy (AFM), contact angle technique, energy dispersive X-ray (EDX) and electron probe microanalysis (EPMA) were performed to check the existence of the gel-layer on ...
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Article
Structure of a fucose transporter in an outward-open conformation
MFS (major facilitator superfamily) transporters are an ancient and ubiquitous class of transport protein. After several decades of research, the structures of three MFS transporters were known — LacY and GlpT...
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Article
Thermodynamic witness of quantum probing
The thermodynamic influence of quantum probing on an object is studied. Here, quantum probing is understood to be a pre-measurement based on a non-demolition interaction, which records some information of the ...
