wenyu liu
Dalian University of Technology, School of Foreign Languages, Faculty Member
- Dalian University of Technology, Wu, Emeritusadd
- Discourse Analysis, Cognitive Linguistics, Frequency, Cognitive sociolinguistics, Social Sciences, Social Media, and 17 moreNew Media, Social Networking, Web 2.0, Critical Discourse Analysis, Critical Discourse Studies, Positive Discourse Analysis (identity Construction), Discourse Analysis (Positive and Critical); Language in Social Life; Corpus linguistics, Boon and Head - Critical Theory and the Language of Violence: Exploring the Issues, Violence and Language, Translation Studies, Critical Theory, Media Studies, Language and Ideology, Neoliberalism, Political Discourse Analysis, Poststructuralism, and Cultural Studies(New Media, Social Networking, Web 2.0, Critical Discourse Analysis, Critical Discourse Studies, Positive Discourse Analysis (identity Construction), Discourse Analysis (Positive and Critical); Language in Social Life; Corpus linguistics, Boon and Head - Critical Theory and the Language of Violence: Exploring the Issues, Violence and Language, Translation Studies, Critical Theory, Media Studies, Language and Ideology, Neoliberalism, Political Discourse Analysis, Poststructuralism, and Cultural Studies)edit
Research Interests: Plant Biology, Transcription Factors, Signal Transduction, Arabidopsis thaliana, Race, and 25 morePlant Physiology, Plant diseases, Defensins, Botrytis, Resistance, Disease resistance, Plant Growth Regulators, Ms, Gene, Organophosphorus Compounds, Arabidopsis, Gen, Bupleurum, DNA binding, Botrytis cinerea, ERF, Plant immunity, Methyl Jasmonate, Salicylic Acid, Medicinal Plant, PLANT PROTEINS, GFP, Nuclear localization signal, NLS, and Sa(Plant Physiology, Plant diseases, Defensins, Botrytis, Resistance, Disease resistance, Plant Growth Regulators, Ms, Gene, Organophosphorus Compounds, Arabidopsis, Gen, Bupleurum, DNA binding, Botrytis cinerea, ERF, Plant immunity, Methyl Jasmonate, Salicylic Acid, Medicinal Plant, PLANT PROTEINS, GFP, Nuclear localization signal, NLS, and Sa)
(Plant Physiology, Plant diseases, Defensins, Botrytis, Resistance, Disease resistance, Plant Growth Regulators, Ms, Gene, Organophosphorus Compounds, Arabidopsis, Gen, Bupleurum, DNA binding, Botrytis cinerea, ERF, Plant immunity, Methyl Jasmonate, Salicylic Acid, Medicinal Plant, PLANT PROTEINS, GFP, Nuclear localization signal, NLS, and Sa)
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Using Mössbauer spectra and x-ray diffraction patterns, annealed mechanically alloyed Fe - Cu has been investigated in this paper. It is found that in [Formula: see text], after it has been milled, fcc-Cu has transformed into bcc-Cu, and... more
Using Mössbauer spectra and x-ray diffraction patterns, annealed mechanically alloyed Fe - Cu has been investigated in this paper. It is found that in [Formula: see text], after it has been milled, fcc-Cu has transformed into bcc-Cu, and some Cu atoms have diffused into the Fe. After the alloy has subsequently been annealed, it is found that bcc-Cu has transformed back into fcc-Cu, while the Cu atoms in the Fe have been separated. In [Formula: see text], after being milled, an fcc-Fe-rich phase has been formed, and after the alloy has subsequently been annealed, this has transformed back to bcc-Fe. The shorter the milling time and the higher the annealing temperature, the faster the transformation. In [Formula: see text], after it has been annealed, the fcc-Fe-rich phase has transformed to bcc-Fe also, and the fcc-Cu-rich phase remains when the annealing temperature increases. All of these results show that the fcc-Fe-rich phase in the milled samples is a metastable phase - it will transform to stable bcc-Fe when it is annealed - while the long-milling-product fcc-Cu-rich phase is a stable phase.
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... Yong Li, Wenyu Liu and Baiwen Li Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics, The Chinese Academy of Sciences, Wuhan 430071, People's Republic of China Chinese Center... more
... Yong Li, Wenyu Liu and Baiwen Li Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics, The Chinese Academy of Sciences, Wuhan 430071, People's Republic of China Chinese Center of Advanced Science and ...
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Most of our knowledge about chronic musculoskeletal pain is based on cutaneous pain models. To test the hypothesis that animals develop chronic muscular hyperalgesia following intramuscular acidic saline injections, primary hyperalgesia... more
Most of our knowledge about chronic musculoskeletal pain is based on cutaneous pain models. To test the hypothesis that animals develop chronic muscular hyperalgesia following intramuscular acidic saline injections, primary hyperalgesia within the gastrocnemius muscle was analyzed compared to secondary cutaneous hyperalgesia in the hind paw that develops following intramuscular acid saline injection. Two acidic saline (pH 4) injections were administrated into the gastrocnemius of female CF-1 mice. The results indicate that mice developed a robust hypersensitivity bilaterally in primary (gastrocnemius muscle) secondary (cutaneous hind paw) sites that lasted up to 2 weeks. In addition, primary hyperalgesia correlated well with levels of Fos expression. Fos expression patterns in the spinal cord were different for primary secondary site stimulation. Hind-paw palpation stimulated ipsilateral Fos expression in the superficial spinal laminae at L4/L5 levels, bilaterally in deep laminae at L2-L5 spinal levels. In contrast, gastrocnemius compression stimulated widespread Fos expression in all regions of the ipsilateral dorsal horn within L2-L6 spinal segments. These findings indicate that acidic saline injection induces primary hyperalgesia in muscle that the patterns of Fos expression in response to primary vs secondary stimulation are strikingly different. This study assesses primary site muscular pain, which is the main complaint of people with musculoskeletal conditions, and identifies spinal patterns activated by noxious mechanical stimuli to the gastrocnemius. This study demonstrates approaches to test nociception arising from muscle aids in our understanding of spinal processing of primary secondary site hyperalgesia.
Research Interests: Pain, Skeletal muscle biology, Mice, Female, Animals, and 12 moreSpinal Cord, Musculoskeletal pain, Analysis of Variance, Hydrogen-Ion Concentration, Sodium Chloride, Pain Measurement, Hyperalgesia, Pain Threshold, Gene Expression Regulation, Dorsal Horn, Functional Laterality, and Statistics as Topic
Studies of the passive support provided by ankle braces have focused primarily on inversion support. The goal of this study was to develop a technique to measure the support provided by ankle braces in all rotational directions and to use... more
Studies of the passive support provided by ankle braces have focused primarily on inversion support. The goal of this study was to develop a technique to measure the support provided by ankle braces in all rotational directions and to use this technique to compare four common braces (Ascend, Swede-O, Aircast, and Active Ankle). For this purpose, a 6 degrees-of-freedom linkage was used to measure the flexibility of the ankle complex in 10 healthy subjects. Each subject was tested without brace support and with each of the four braces. Testing was repeated on each subject on two different occasions. The angular displacement at specified moment values and the four segmental flexibility values obtained from the loading portion of the moment-angular displacement data were used in the data analysis. Repeated measure analysis of variance followed by a Student Neuman-Keuls test at p < 0.05 was performed. This statistical analysis was used to identify significant differences among the braces and differences between each brace and the no brace condition. Each of the four braces provided significant support in inversion, eversion, and internal rotation, but the amount of support varied significantly among the braces. In external rotation, only the stirrup braces provided significant support. The braces also varied significantly in the amount of interference with dorsiflexion and plantar flexion. Clinicians may be assisted by objective data on the amount and nature of passive support when prescribing braces to their patients.
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X-ray absorption fine structure (XAFS) has been used to study the local structures of Ga in the temperature region between 78 and 373 K. The three model atomic pair distribution functions, i.e. Gaussian function, convolution of Gaussian... more
X-ray absorption fine structure (XAFS) has been used to study the local structures of Ga in the temperature region between 78 and 373 K. The three model atomic pair distribution functions, i.e. Gaussian function, convolution of Gaussian and exponent function, and cumulant expansion, are used to analyze EXAFS data of the liquid Ga. Assuming an asymmetric atom pair distribution function
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ABSTRACT Lead zirconate titanate thick films have been deposited on platinum coated alumina substrates using micro-pen direct-writing technique. The viscosity, film thickness, interface, surface roughness, dielectric, and ferroelectric... more
ABSTRACT Lead zirconate titanate thick films have been deposited on platinum coated alumina substrates using micro-pen direct-writing technique. The viscosity, film thickness, interface, surface roughness, dielectric, and ferroelectric properties were investigated with different paste rheology, scanning speed and distance between lines. The results showed that in order to obtain good film, the viscosity values should below 10 Pa S in the writing range, and the proper writing speed should be kept at 4 mm/s, while the distance between lines should be kept as 300 μm. Comparing with the sample prepared by screen printing, the dielectric constant was increased from 710 to 750 and the dielectric loss was decreased from 0.015 to 0.012. Moreover, the two samples had similar ferroelectric properties with the remanent polarization P r is 30 μC/cm2 and the coercive field E c is 18 kV/cm. These results mean that the Micro-pen writing is a very effective method to prepare thick films.
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The early diagnosis of nonfunctioning pituitary adenoma (NFPA) is difficult. The objective of this study was to find specific protein biomarkers to aid in the early detection of NFPA. Serum samples from 34 patients with NFPA and 34 age-... more
The early diagnosis of nonfunctioning pituitary adenoma (NFPA) is difficult. The objective of this study was to find specific protein biomarkers to aid in the early detection of NFPA. Serum samples from 34 patients with NFPA and 34 age- and sex-matched healthy control subjects were analysed using surface-enhanced laser desorption/ionization time-of-flight mass spectrometry (SELDI-TOF-MS) technology. The spectra were generated, protein peak clustering was performed and classification analyses were carried out using a decision tree classification algorithm. Nine differentially expressed serum proteins were identified in the patients with NFPA compared with the control subjects. Both the sensitivity and specificity of the decision tree classification algorithm were 82.4% for NFPA. Nine new serum protein biomarkers for NFPA were identified. SELDI-TOF-MS coupled with data mining tools might provide a novel approach for the early diagnosis of NFPA and population screening for the disease.
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Ketanserin, a 5-hydroxytryptamine receptor antagonist, is clinically used as an antihypertensive agent and could enhance baroreflex function. The present work tested the hypothesis that restoration of baroreflex function is an effective... more
Ketanserin, a 5-hydroxytryptamine receptor antagonist, is clinically used as an antihypertensive agent and could enhance baroreflex function. The present work tested the hypothesis that restoration of baroreflex function is an effective treatment for lipopolysaccharide (LPS)-induced shock. Kunming mice were injected with LPS (30 mg/kg; intraperitoneal) to induce endotoxic shock. Ketanserin (0.3, 1, 3, or 10 mg/kg; intraperitoneal) was administered immediately after LPS injection. Survival time was monitored, and serum cytokines were analyzed after the onset of LPS. Effects of ketanserin were also examined in IL-10-deficient mice and mice with sinoaortic denervation. Finally, effects of ketanserin on blood pressure, heart rate, and baroreflex sensitivity were examined in Wistar-Kyoto (WKY) rats with endotoxic shock. Ketanserin significantly increased survival time and decreased serum levels of tumor necrosis factor α and interleukin (IL) 1β in mice with endotoxic shock. At a dose of 10 mg/kg, ketanserin also significantly increased serum IL-10 concentration. The antishock effect of ketanserin was also apparent in IL-10-knockout mice. In mice with sinoaortic denervation, however, ketanserin had little antishock effects. In WKY rats, ketanserin significantly prevented the baroreflex impairment induced by LPS and prolonged the survival time. Ketanserin could ameliorate endotoxic shock by restoring baroreflex function.
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Full dynamic simulation of the power system is such a method in which the electro-mechanical transient, and medium-term and long-term dynamic phenomena are unified. For the large difference between the time constants of dynamic simulation... more
Full dynamic simulation of the power system is such a method in which the electro-mechanical transient, and medium-term and long-term dynamic phenomena are unified. For the large difference between the time constants of dynamic simulation models, it is a ...
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ABSTRACT In this paper, breathers and solitons are obtained in nonlinear optical materials. Via Hirota’s bilinear method, the variable-coefficient nonlinear Schrödinger equation is studied analytically, and analytic solutions for this... more
ABSTRACT In this paper, breathers and solitons are obtained in nonlinear optical materials. Via Hirota’s bilinear method, the variable-coefficient nonlinear Schrödinger equation is studied analytically, and analytic solutions for this equations are derived. By properly choosing the parameters for the solutions, the features and characteristics are discussed. The presented results could be used in optics and materials science.
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The gap-midgap ratio for three types of rhombus lattice photonic band structures are analyzed by plane wave expansion method, which is confirmed by the HFSS simulation. Firstly, general wave vectors in the first Briliouin zone are... more
The gap-midgap ratio for three types of rhombus lattice photonic band structures are analyzed by plane wave expansion method, which is confirmed by the HFSS simulation. Firstly, general wave vectors in the first Briliouin zone are derived. Secondly, the gap-midgap ratios as a function of filling factor and background material are investigated, respectively. These results would provide theoretical instruction for
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Gambogic acid (GBA), the main component of Gamboge, possesses significant anti-tumour activity. Due to its structural complexity, little is known about GBA metabolism. Here, we investigate the metabolism of GBA in vivo in rat bile.... more
Gambogic acid (GBA), the main component of Gamboge, possesses significant anti-tumour activity. Due to its structural complexity, little is known about GBA metabolism. Here, we investigate the metabolism of GBA in vivo in rat bile. Identification of the metabolites formed was elucidated using high-performance liquid chromatography (HPLC) with UV-vis detection, HPLC/ion trap electrospray ionization-mass spectrometry, as well as HPLC/nuclear magnetic resonance. Four main metabolites were determined. Two phase I metabolites, 10-hydroxygambogic acid and 9,10-epoxygambogic acid, were oxides on the 9,10-olefinic bond of GBA. The others phase II metabolites, were 9,10-epoxygambogic acid-30-O-glucuronide and 10-hydroxylgambogic acid-30-O-glucuronide.
Research Interests: Analytical Chemistry, Mass Spectrometry, Nuclear Magnetic Resonance, Magnetic Resonance Spectroscopy, Animals, and 10 moreHigh Performance Liquid Chromatography, High Pressure Liquid Chromatography, Liquid Chromatography / Electrospray Ionization Mass Spectrometry, Structure Elucidation, Rats, Structural Complexity, Structure Determination, Biochemistry and cell biology, Molecular Structure, and Bile
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Cross-sectional transmission electron microscopy, selected area electron diffraction, and small-angle x-ray diffraction have been used to observe the systematic deviations of period in W/Si and W/C multilayers. The mean periods decreased... more
Cross-sectional transmission electron microscopy, selected area electron diffraction, and small-angle x-ray diffraction have been used to observe the systematic deviations of period in W/Si and W/C multilayers. The mean periods decreased gradually as the detected regions were located farther away from the substrate. To avoid destroying the multilayer, a method is suggested to measure the systematic deviation of period by
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Generalizations of perturbed Ostrowski type inequality for functions of Lipschitzian type are established. Applications in numerical integration and cumulative distribution functions are also given.
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ABSTRACT In this paper, we consider the solutions of discrete second-order boundary value problem {lD2y(k-1)+a(k)f(k,y(k))=0, k Î {1,¼,T},y(0)-aDy(0)=0, y(T+1)=by(n),\left\{\begin{array}{l}\Delta ^{2}y(k-1)+a(k)f(k,y(k))=0,\quad k\in... more
ABSTRACT In this paper, we consider the solutions of discrete second-order boundary value problem {lD2y(k-1)+a(k)f(k,y(k))=0, k Î {1,¼,T},y(0)-aDy(0)=0, y(T+1)=by(n),\left\{\begin{array}{l}\Delta ^{2}y(k-1)+a(k)f(k,y(k))=0,\quad k\in \{1,\ldots,T\},\\[2pt]y(0)-\alpha\Delta y(0)=0,\quad y(T+1)=\beta y(n),\end{array}\right. where f is continuous, T≥3 is a fixed positive integer, n∈{2,…,T−1}, constant α,β>0 such that T+1−β n+α(1−β)>0,T+1−β n>0. Under suitable conditions, we accomplish this by using the property of the associate Green’s function and Leggett-Williams fixed point theorem.
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ABSTRACT White-beam synchrotron topography has been demonstrated to be well suited for observation of all kinds of ferroelastic and ferroelectric twin domains. It is found that the domains that are misorientated against each other always... more
ABSTRACT White-beam synchrotron topography has been demonstrated to be well suited for observation of all kinds of ferroelastic and ferroelectric twin domains. It is found that the domains that are misorientated against each other always appear as orientation contrasts in the topographs, while the antiparallel domains with parallel lattices may show different diffraction intensity by the synchrotron-radiation anomalous-scattering effect. Based on the reciprocal-lattice splitting and the diffraction geometry, a general method of determination of the image displacement associated with two misorientated domains is given to explain their orientation contrast. It is also revealed that the anomalous-scattering contrast of antiparallel domains arises from the anomalous-dispersion terms of the noncentrosymmetric atoms in the unit cell of ferroelectric crystals.
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A new practical free space quantum communication system is proposed, it is based on the principle of quantum secure direct communication. Quantum cryptography is a practical method to realize free space optical communication. Different... more
A new practical free space quantum communication system is proposed, it is based on the principle of quantum secure direct communication. Quantum cryptography is a practical method to realize free space optical communication. Different from the existing ...
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A novel halophilic, filamentous, actinomycete strain, designated CXB832T, was isolated from a salt pond in Qingdao, China. Optimal growth occurred at 37 °C, pH 7.0-8.0 and 9-12 % (w/v) NaCl. Strain CXB832T formed pale yellow to deep... more
A novel halophilic, filamentous, actinomycete strain, designated CXB832T, was isolated from a salt pond in Qingdao, China. Optimal growth occurred at 37 °C, pH 7.0-8.0 and 9-12 % (w/v) NaCl. Strain CXB832T formed pale yellow to deep yellow branched substrate mycelium without fragmentation. Abundant white aerial mycelium differentiated into long chains of spores and the spores were rod-shaped with smooth surfaces. Strain CXB832T contained meso-diaminopimelic acid as the diagnostic diamino acid of the cell-wall peptidoglycan, and glucose and xylose as the major whole-cell sugars. The phospholipids were diphosphatidylglycerol, phosphatidylglycerol, phospholipids, glycolipid and unidentified lipids. MK-10(H8), MK-9(H8), MK-10(H2) and MK-10(H6) were the predominant menaquinones. The major fatty acids were i-C16:0 (30.71 %), ai-C17:0 (13.31 %) and C16:0 (11.28 %). The G+C content of the DNA was 60.1 mol%. Comparative analysis of 16S rRNA gene sequences showed that the novel strain was most closely related to genera within the family Nocardiopsaceae, but formed a separate lineage. The highest sequence similarities were to Nocardiopsis arabia DSM 45083T (95.4 %) and Haloactinospora alba DSM 45015T (94.9 %). On the basis of phenotypic, chemotaxonomic and phylogenetic distinctiveness, strain CXB832T represents a new genus and novel species in the family Nocardiopsaceae, for which the name Salinactinospora qingdaonensis gen. nov., sp. nov. is proposed. The type strain of the type species is CXB832T (=DSM 45442T=LMG 25567T).
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ABSTRACT Catalyzed sodium borohydride hydrolysis is a highly valuable method to produce clean hydrogen energy for portable applications. This study provides a new and fast route to preparation of reusable hybrid materials composed of... more
ABSTRACT Catalyzed sodium borohydride hydrolysis is a highly valuable method to produce clean hydrogen energy for portable applications. This study provides a new and fast route to preparation of reusable hybrid materials composed of nickel-boron based nanoclusters dispersed in nanoporous poly(acrylamide) hydrogels for catalyzed hydrogen production. Palladium was added to the Ni-B catalysts during chemical reduction under the protection of poly(N-vinylpyrrolidone). The resulting nanoclusters immobilized in the hydrogels were essentially alloy particles with uni-modal size distributions and average diameters ranging from ca. 4-8 nm. Pd exerted significant promoting effects on the activities of the Ni-B catalysts. The highest activity was achieved for Pd-Ni-B nanoclusters with a charge ratio of Pd/Ni = 1/20 in moles, which exhibited activity nearly twice that of a Ni-B catalyst and good recyclability for consecutive uses. The hydrogen production rates also increased with the decreasing particle sizes. The activation energy, enthalpy and entropy for the reaction were determined to be 31.10 kJ mol−1, 28.39 kJ mol−1 and -45.22 J mol−1 K−1, respectively. The activation energy is lower than that of previously reported polymer-stabilized Co(0), Fe(0), or Ni(0) nanoparticle catalysts.