29 Result(s)
within
**zhi Li
Earth Sciences, general
Science, Humanities and Social Sciences, multidisciplinary
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Article
Honeycomb silicon: a review of silicene
Silicene, a new allotrope of silicon in a two-dimensional honeycomb structure, has attracted intensive research interest due to its novel physical and chemical properties. Unlike carbon atoms in graphene, sili...
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Article
Characterization of cocrystals formed by grinding amino acids through terahertz time-domain spectroscopy
In this paper, we used terahertz time-domain spectroscopy (THz-TDS) over a range of 0.3–2.5 THz to investigate the formation of solid-state cocrystals of amino acids, formed by grinding mixtures of two differe...
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Article
Open AccessStructure of the kinase domain of human RNA-dependent protein kinase with K296R mutation reveals a face-to-face dimer
RNA-dependent protein kinase (PKR) is crucial for the innate immune response, cell growth, proliferation, signal transduction and apoptosis. The activation process of PKR has been studied for many years and is...
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Article
Open AccessChanges in palaeoproductivity of Genggahai Lake over the past 16 ka in the Gonghe Basin, northeastern Qinghai-Tibetan Plateau
Sequential samples of a 7.82-m sediment core from Genggahai Lake in the central Gonghe Basin, controlled with 12 accelerator mass spectrometry (AMS) 14C dates, have been analysed for total organic carbon (TOC) an...
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Article
Open AccessInterannual and interdecadal variations in the North Atlantic Oscillation spatial shift
The spatial shift of the North Atlantic Oscillation (NAO) is analyzed by using the Twentieth Century Reanalysis version 2 dataset and identifying NAO action centers directly on winter mean sea-level pressure (...
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Article
Open AccessApplication study of a correction method for a spacecraft thermal model with a Monte-Carlo hybrid algorithm
The correction of a thermal model for a thermally controlled satellite in ground test conditions is studied using a Monte Carlo hybrid algorithm. First, the global and local parameters are summarized according...
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Article
Open AccessIsotopic evidence for the moisture origin and composition of surface runoff in the headwaters of the Heihe River basin
We investigated the moisture origin and contribution of different water sources to surface runoff entering the headwaters of the Heihe River basin on the basis of NECP/NCAR (National Centers for Environmental ...
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Article
Duplication and functional diversification of pancreatic ribonuclease (RNASE1) gene
Adaptation is one of the most fundamental issues in the studies of organismal evolution. Pancreatic ribonuclease is a very important digestive enzyme and secreted by the pancreas. Numerous studies have suggest...
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Article
A preliminary study of chronology for a newly-discovered ancient city and five archaeological sites in Lop Nor, China
In the past century, it has long been debated in the archeological, historical, geographical, and many other related communities where the capital of the Luolan and Shanshan states was in the Lop Nor region. T...
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Article
The plasmonic coupling of metal nanoparticles and its implication for scanning near-field optical microscope characterization
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Article
On-line catalytic upgrading of biomass fast pyrolysis products
Pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) was employed to achieve fast pyrolysis of biomass and on-line analysis of the pyrolysis vapors. Four biomass materials (poplar wood, fir wood, cotton s...
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Article
Evolution of the serum resistance-associated SRA gene in African trypanosomes
Serum resistance-associated (SRA) protein, a protein unique for Trypanosoma brucei rhodesiense, is responsible for resistance of this parasite to the lysis by normal human serum (NHS) and is a vital molecular mar...
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Article
Study on temperature characteristics of organic light-emitting diodes based on tris-(8-hydroxylquinoline)-aluminum
Both single-layer and double-layer organic light-emitting devices based on tris-(8-hydroxylquinoline)-aluminum (Alq3) as emitter are fabricated by thermal vacuum deposition. The electroluminescent characteristics...
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Article
Discoveries and functions of virus-encoded MicroRNAs
Virus-encoded microRNAs (miRNAs) are a new kind of miRNAs that regulate the expression of target gene in host cells or viruses through inducing cleavage of mRNA, repressing translation, etc., and change the pr...
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Article
fMRI-constrained source analysis of visual P300 in Landolt ring task
An fMRI-constrained source analysis was applied to investigate visual P300 in the Landolt ring task. To study the localization and relative activation timing of P300 generators, we implemented simultaneous EEG...
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Article
Spatial and temporal variations of zooplankton composition and quantity distribution in the upper waters around Nansha Islands
This study aims to examine spatial and temporal variations of zooplankton species composition, density and biomass distribution and community structure, based on the data obtained from three separate cruises c...
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Article
Circular dichroism spectral studies on the recombinant human neuroglobin
Neuroglobin (NGB) is a newly discovered member of the hemoglobin superfamily that is primarily expressed in the brain of humans and other vertebrates. The effects of protein concentration, solvent, pH and temp...
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Article
Detection of DNA methylation changes during seed germination in rapeseed (Brassica napus)
DNA methylation is known to play a crucial role in regulating plant development and organ or tissue differentiation. In this study, we assessed the extent and pattern of cytosine methylation during rapeseed (Bras...
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Article
EEG-correlated fMRI of P3b component in P300 waves
Electroencephalography-correlated functional magnetic resonance imaging (EEG/fMRI) can be used to identify blood oxygen level-dependent (BOLD) signal changes associated with both physiological and pathological...
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Article
Development, chromosome location and genetic map** of EST-SSR markers in wheat
A number of 151695 wheat expression sequence tags (ESTs) that originated from GenBank/dbEST from July 14, 2003 to August 24, 2004 were used to search for simple sequence repeats (SSRs) with motif 2–5 bp, and 2...
