图书馆阅读的行为角度研究——基于阅读困难群体问题的思考

阅读困难群体问题尚未被纳入研究领域和目前阅读研究角度的局限,是图书馆阅读研究成效不甚理想的一重要因素。行为角度的阅读包括提供阅读和实施阅读,缺失任何一个方面的阅读都将遭遇阻碍。阅读困难群体是实现全民阅读的瓶颈。图书馆"领导"大众阅读的作用有限,最有作为的领域是帮助阅读困难群体走出困境。

谈认知行为角度的情商内涵与体系架构

情商一词自提出之日起就引起心理学界研究人员的广泛关注,目前对于情商内涵方面研究也取得了诸多进展,可现有的情商内涵研究趋于概括化和缺乏对情商理论应用的可操作性。针对这种状况,从认知行为角度系统提出情商内涵和体系架构,详细阐述现有情商内涵研究成果、现有情商内涵研究面临的问题、认知行为角度界定的情商内涵核心内容、认知行为角度界定的情商内涵体系架构和认知行为角度界定的情商内涵未来在情商应用领域的实际作用。

浅谈如何做好统计分析研究

统计分析研究是统计工作不可或缺的重要组成部分,是《统计法》赋予统计部门和广大统计工作者的法定职责,更是全面贯彻落实党中央就统计工作作出的《关于更加有效发挥统计监督职能作用的意见》这一重大决策部署的时代要求。如何做好统计分析研究工作?笔者从政府统计部门总体运筹、推进过程等组织行为角度和分析研究人员做好分析研究应该具备的条件谈谈看法,也是自己多年从事分析研究工作的粗浅感悟。

Influence of deflection angles on flow behaviours in openchannel bends

The deflection angle of a river bend plays an important role on behaviours of the flow within it, and a clear understanding of the angle's influence is significant in both theoretical study and engineering application. This paper presents a systematic numerical investigation on effects of deflection angles(30°, 60°, 90°, 120°, 150°, and 180°) on flow phenomena and their evolution in open-channel bends using a Re-Normalization Group(RNG) κ-ε model and a volume of fluid(VOF) method. The numerical results indicate that the deflection angle is a key factor for flows in bends. It is shown that the maximum transverse slope of water surface occurs at the middle cross section of a bend, and it increases with the deflection angle. Besides a major vortex, or, the primary circulation cell near the channel bottom, a secondary vortex, or, an outer bank cell, may also appear above the former and near the outer bank when the deflection angle is sufficiently large, and it will gradually migrate towards the inner bank and evolve into an inner bank cell. The strength of the secondary circulations increases with the deflection angle. The simulation demonstrates that there is alow-stress zone on the bed near the outer bank and a high-stress zone on the bed near the inner bank, and both of them increase in size with the deflection angle. The maximum of shear stress on the inner bank increases nonlinearly with the angle, and its maximums on the outer bank and on the bed take place when the deflection angle becomes 120°.

Phosphorus Behavior at Sediment-Water Interface in Coastal Wetland

[Objective] The aim was to explore the role of coastal wetlands in phosphorus fixation in the Yellow River Delta.[Method] The research analyzed phosphorus behavior at sediment-water interface by static water column test. [Result] The research concluded that phosphorus concentration was in the range of 0.051-0.322 mg/L in overlying water, and phosphorus was effectively removed by degradation and adsorption. The static water column test has demonstrated that phosphorus concentration of coastal wetlands plays the role of accumulation when phosphorus concentration is lower than 7 mg/L in overlying water of coastal wetlands. It is notable that substrates of overlying water all perform well in adsorption, and the adsorption reaches saturation if the concentration goes up to 10 mg/L. [Conclusion] Coastal wetlands would significantly adsorb and degrade phosphorus in overlying water, controlling phosphorus within a lower range.

Research on spring-back behavior of high strength steel sheets

To investigate the spring-back behavior of dual-phase （DP） steel, V-shape spring-back experiments with different bending angles, relative bending radii and blank holding forces were carried out in this paper. It is concluded that with the increase of V-shape angle or blank holding force, the spring-back of DP steel sheets decreases; while raising fiIlet radius of punch, which has the most apparent effects on spring-back, advances spring-back angle. Among DP590, DP780 and DP980, higher strength yields more notable spring-back due to larger elastic deformation. The difference of spring-back among these materials is relevant with the microstructure and mechanical properties. The total elastic deformation approximately equals the ratio of the strength corresponding to the applied load to the modulus of elasticity.

浅谈如何做好统计分析研究工作

统计分析研究是统计工作不可或缺的重要组成部分,是《统计法》赋予统计部门和广大统计工作者的法定职责,更是全面贯彻落实党中央就统计工作作出的《关于更加有效发挥统计监督职能作用的意见》这一重大决策部署的时代要求。如何做好统计分析研究工作,笔者从政府统计部门总体运筹、推进过程等组织行为角度和分析研究人员做好分析研究应该具备的条件谈谈看法,也是自己多年从事分析研究工作的粗浅感悟。

Deformation study of bicrystalline and nano-polycrystalline structures using phase field crystal method

Deformation behaviors of bicrystalline and nano-polycrystalline structures of various tilt angles and inclination angles in two dimensions are investigated in detail using a two-mode phase field crystal model.The interaction between grain boundary(GB)and dislocation is also examined in bicrystals and nano-polycrystals that both contain asymmetric and symmetric tilt GBs,with energy analysis being carried out to analyze these processes.During deformation simulations,we assume the volume of each simulation cell at every time step is coincident with that of the initial state just before deformation.Our simulation results show that the behaviors of symmetric and asymmetric GBs in bicrystals and nano-polycrystals differ from each other depending on tilt angle and inclination angle.A new dislocation emission mechanism of interest is observed in bicrystals which contain low angle symmetric tilt GBs.Low angle GB has a higher mobility relative to high angle GB in both bicrystalline and nano-polycrystalline structures,as does asymmetric GB to symmetric GB.The generation,motion,pileup and annihilation of dislocations,grain rotation and grain coalescence are observed,which is consistent with the simulation results obtained by molecular dynamics.These simulation results can provide strong guidelines for experimentation.