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The Use of Interaction in Oral English Teaching at Higher vocational college

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海外英语 2018年第13期 248-249页

作者：余莲君 meishan vocational and technical college

Interactional teaching is one of the most effective teaching methods adopted in English teaching at higher vocational *** contributes to students’language competence in English *** this passage,the definition of inte... 详细信息

关键词： use interaction English teaching

Investigation of the Current Situation of Innovation Ability Education of vocational college Students Under the Guidance of Ideological and Political Education

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Journal of Contemporary Educational Research 2024年第3期8卷 73-77页

作者： Xiaolin Fan Nurjulidezi Baheti Yonghong Gu Nanjing vocational Health college Nanjing 210000Jiangsu ProvinceChina Yili vocational and technical college Yili 835000Xinjiang Uygur Autonomous RegionChina

Innovation ability is the ability to continuously provide new ideas,theories,methods,and inventions with economic,social,and ecological values in the fields of technology and various practical *** ideological and political education of vocational school students should be student-oriented and close to reality and *** is necessary to improve the pertinence,effectiveness,attractiveness,and infectiousness of ideological and political education,and cultivate socialist builders and successors with all-round development of morality,intelligence,physique,and *** this paper,we investigate and understand the practice of innovation ability education in colleges and universities at home and abroad,especially the current situation of professional practice teaching in Xinjiang vocational *** construction of a professional practice base in vocational colleges is systematically studied.

关键词： Ideological and political education Innovation ability education vocational college students

Surface-induced Morphologies of ABC Star Triblock Copolymer in Spherical Cavities

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Chinese Journal of Polymer Science 2015年第11期33卷 1503-1515页

作者： Wen-bo Jiang Yong-yun Ji Wen-chang Lang 李士本王向红 Department of Physics Wenzhou University Department of Physics Wenzhou Vocational and Technical College

The morphologies and phase diagrams exhibited by symmetric ABC star triblock copolymer nanoparticles are investigated on the basis of real-space self-consistent field theory. The ABC star triblock copolymers were chosen to be tiling-forming with fixed polymer parameter and the spherical boundaries were modeled using the masking technique. We first study a number of examples where the ABC triblock copolymers confined in spherical cavities with neutral surface. Then, two types of spherical cavity distinct preferential surfaces are considered, including both A-block attractive and repulsive preferential surfaces. We aim at the effects due to various spherical cavity diameters and the degree of interactions between the polymer and the spherical surface. A variety of morphologies, such as ring-like structures, concentric sphere, and irregular cylinder, were identified in phase diagrams. The results show that both the degree of interactions and spherical diameters can influence the formation of morphologies so that ring-like structures and other novel structures could be obtained.

关键词： Morphology Star triblock copolymer Spherical cavity SCFT

Theoretic Study of 3-(4-N-Maleimido)-phenyl-2,4-dihydro-2H-1,3-benzoxazine Molecular Structure,Spectrum and Thermodynamic Properties

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Chinese Journal of Structural Chemistry 2011年第12期30卷 1691-1698页

作者：陈自然徐友辉陶果 Building and Environmental Engineering Department of Sichuan Vocational and Technical College

The geometric structures,electronic absorption spectrum,and thermodynamic pro-perties of 3-（4-N-maleimido）-phenyl-2,4-dihydro-2H-1,3-benzoxazine molecule were studied at the B3LYP/6-311＋G＊ level by density functional *** results show that three rings of this molecule are in different *** gas,absorption wavelength of the lowest energy excitation was obtained at 503 nm,and solvents made it blue-shifted by 3-7 nm,both corresponding to the electron transition of HOMO → *** 298.15 K,the standard molar formed enthalpy and free energy of the title compound molecule were-549.43 and-273.37 kJ·mol-1,respectively.

关键词： maleimide benzoxazine density functional theory spectra thermodynamic properties

Effect of Relative Grain Size on the Flow Stress of Polycrystalline FCC Sheets

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Journal of Wuhan University of Technology(Materials Science) 2012年第3期27卷 477-483页

作者：杨梅 Advanced vocational technical college Shanghai University of Engineering Science

A dynamic explicit finite element code and rate-dependent elastic-viscoplastic polycrystalline model were used to simulate the simple tension test of annealing FCC polycrystal and 6111-T4 aluminum alloy sheet metal. The variability of flow stress was investigated, which was induced by various grain boundary constraints when the ratio of thickness-to-grain size was changed. The simulated results show that, when the relative grain size increases, the constraint of grain boundary will increase accordingly, which results in the increase of the flow stress of polycrystal. The results agree with experiments.

关键词： micro-forming crystal plasticity polycrystal grain size

Data processing method for aerial testing of rotating accelerometer gravity gradiometer

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中国惯性技术学报 2024年第8期32卷 743-752页

作者： QIAN Xuewu TANG Hailiang Department of Electronic Engineering Jinan Vocational CollegeJinan 250103China Jinan Key Laboratory of 5G+Advanced Control Technology Jinan 250103China School of Information Science and Engineering Qilu Normal UniversityJinan 250200China

A novel method for noise removal from the rotating accelerometer gravity gradiometer(MAGG)is *** introduces a head-to-tail data expansion technique based on the zero-phase filtering principle.A scheme for determining band-pass filter parameters based on signal-to-noise ratio gain,smoothness index,and cross-correlation coefficient is designed using the Chebyshev optimal consistent approximation ***,a wavelet denoising evaluation function is constructed,with the dmey wavelet basis function identified as most effective for processing gravity gradient *** results of hard-in-the-loop simulation and prototype experiments show that the proposed processing method has shown a 14%improvement in the measurement variance of gravity gradient signals,and the measurement accuracy has reached within 4E,compared to other commonly used methods,which verifies that the proposed method effectively removes noise from the gradient signals,improved gravity gradiometry accuracy,and has certain technical insights for high-precision airborne gravity gradiometry.

关键词： airborne gravity gradiometer data processing band-passing filter evaluation function

Inhibitory Effects of 2,3,4',5-tetrahydroxystilbene-2-O-β-D-glucoside on Angiotensin Ⅱ-Induced Proliferation of Vascular Smooth Muscle Cells

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Chinese Journal of Integrative Medicine 2015年第3期21卷 204-210页

作者：许晓乐黄燕娟凌丹彦张伟 Department of Pharmacology Nantong University Pharmacy College Shanghai Health vocational and technical college

Objective：To investigate the effect of 2,3,4’,5-tetrahydroxystilbene-2-0- p-D-glucoside（TSG）,an active component extracted from the root of Polygonum multiflorum,on angiotensin Ⅱ（Ang Ⅱ）-induced proliferation of cultured rat vascular smooth muscle cells（VSMCs） and to identify the potential ***：Cell proliferation and cell cycle were determined by cell counting,5-bromo-2’-deoxyuridine incorporation assay,proliferating cell nuclear antigen protein expression and flow *** of phosphorylated extracellular signal-regulated kinase 1/2（ERK1/2）,mitogenic extracellular kinase 1/2（MEK1/2） and Src in VSMCs were measured by Western *** expression of c-fos,c-jun and c-myc mRNA were measured by reverse transcription polymerase chain reaction（RT-PCR）.Intracellular reactive oxygen species（ROS） was measured by fluorescence ***：TSG significantly inhibited Ang Ⅱ-induced VSMCs proliferation and arrested cells in the G1/S checkpoint（P〈0.05 or P〈0.01）.TSG decreased the levels of phosphorylated ERK1/2,MEK1/2 and Src in VSMCs（P〈0.05 or P〈0.01）.TSG also suppressed c-fos,c-jun and c-myc mRNA expression（P〈0.05 or P〈0.01）.In addition,the intracellular ROS was reduced by TSG（P〈0.01）.Conclusions：TSG inhibited Ang Ⅱ-induced VSMCs *** antiproliferative effect might be associated with down-regulation of intracellular ROS,followed by the suppression of the Src-MEK1/2-ERK1/2 signal pathway,and hence,blocking cell cycle progression.

关键词： 2,3,4’,5-tetrahydroxystilbene-2-O-β-D-glucoside vascular smooth muscle cells proliferation angiotensin Ⅱ Chinese medicine Polygonum multiflorum

The effect of interface hopping on inelastic scattering of oppositely charged polarons in polymers

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Chinese Physics B 2013年第6期22卷 512-517页

作者：邸冰王亚东张亚琳安忠 college of Physics and Hebei Advanced Thin Films Laboratory Hebei Normal University Zhangjiakou vocational and technical college

The inelastic scattering of oppositely charge polarons in polymer heterojunctions is believed to be of fundamental importance for the light-emitting and transport properties of conjugated polymers. Based on the tight-binding SSH model, and by using a nonadiabatic molecular dynamic method, we investigate the effects of interface hopping on inelastic scattering of oppositely charged polarons in a polymer heterojunction. It is found that the scattering processes of the charge and lattice defect depend sensitively on the hopping integrals at the polymer/polymer interface when the interface potential barrier and applied electric field strength are constant. In particular, at an intermediate electric field, when the interface hopping integral of the polymer/polymer heterojunction material is increased beyond a critical value, two polarons can combine to become a lattice deformation in one of the two polymer chains, with the electron and the hole bound together, i.e., a self-trapped polaron-exciton. The yield of excitons then increases to a peak value. These results show that interface hopping is of fundamental importance and facilitates the formation of polaron-excitons.

关键词： polarons electron-phonon interactions exciton polymers

Experiments and analysis for rheological properties of MRF

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Journal of Central South University 2008年第S1期15卷 284-287页

作者：王海霞阮予明孔笋王捷 Fujian Electric vocational and technical college Department of Mechanical and Electric Engineering

The work principle of flat-plate structure under shearing mode is expounded based on a vertical type rheometer for MRF which combined data acquisition with treatment and result *** formula to calculate shearing stress is *** on different recipe for MRF,experiments under different working gap length were done by altering the intensity of magnetic *** rheological model for MRF was established and the relationships between shearing stress,viscosity and magnetic field intensity were *** indicate that MRF has the flowing characters:with an increase of the magnetic induction and the nominal shear rate,the shear stress of MRF ***,as the working gap decreases,the shear stress *** has shear thinning property under magnetic field.

关键词： magneto-rheological fluid constitutive equation rheometer experiment