Intact soft clay’s critical response to dynamic stress paths on different combinations of principal stress orientation

Comprehensive tests on Hangzhou intact soft clay were performed, which were used to obtain the soils’ critical response to undrained dynamic stress paths under different combinations of principal stress orientation. The different combinations included cyclic principal stress rotation (CPSR for short), cyclic shear with abrupt change of principal stress orientation (CAPSO for short) and cyclic shear with fixed principal stress orientation (CFPSO for short). On one side, under all these stress paths, samples have obvious strain inflection points and shear bands, and the excess pore water pressure is far from the level of initial effective confining pressure at failure. Stress paths of major principal stress orientation (α) alternating from negative and positive have quite different influence on soil’s properties with those in which α is kept negative or positive. On the other side, due to the soil’s strongly initial anisotropy, samples under double-amplitudes CPSR and CAPSO (or single-amplitude CPSR and CFPSO) have similar properties on dynamic shear strength and pore water pressure development tendency when α is kept within ±45°, while have quite different properties when α oversteps ±45°.     

解读连战先生的民族情

文章试图从两方面解读连战先生深厚的民族情.这种民族情一方面来源于他的家族,连战的先祖到台湾死也不臣服清,曾祖父至父亲三代以各种形式坚持抗日及父母对他言传身教;另一方面与他早年在祖国大陆的生活经历有关,从他对抗战和日本的态度及祖国大陆寻踪等方面体现出来.     

Evaluation of ultimate bearing capacity of Y-shaped vibro-pile

Based on Mindlin stress solution, a numerical computational method was proposed to calculate the stresses in the ground induced by side friction and the resistance of Y-shaped vibro-pile. The improved Terzaghi’s and ЪерезанцевВГ’s methods for ultimate bearing capacity evaluation were proposed by considering the stress strength induced by friction resistance at pile head level of Y-pile. A new method to calculate the ultimate bearing capacity of Y-pile was also proposed based on the assumptions of soil failure mode at the tip of Y-pile and the use of Mohr-Coulomb soil yield criterion and Vesic compressive correction coefficient with the induced stresses in the ground. Based on the comparisons with the field static load test results, it is found that the improved Terzaghi’s method gives higher ultimate capacity, while the other two methods shows good agreement with the field results.     

Adhesion coefficient of automobile tire and road surface

The adhesion coefficient of automobile tire and road surface was analyzed and the formula about it was derived.Some suggestions about highway construction,driving safety of the drivers and the judgment of the traffic accidents were presented.The results show that the adhesion coefficient is a function with the extreme value.If there is atmospheric pressure in the tire,the load of the vehicle and the degree of the coarse on the road surface is not selected properly,it will reach the least and affect the safety of the running automobile.     

Effects of stress conditions on rheological properties of granular soil in large triaxial rheology laboratory tests

In order to study the rheological properties of red stone granular soil,a series of rheological experiments were executed on large tri-axial rheological apparatus.Under 100,200 and 300 kPa confining stress conditions,the rheological tests were carried out.These experiment results showed that the stress conditions,especially the stress level were the critical influencing factors of the rheological deformation properties.Under the low stress level(S=0.1),the granular soil showed the elastic properties,and there was no obvious rheological deformation.Under the middle stress level(0.20.8) creep curves showed the non-linear viscous plastic rheological properties.Especially,under the stress level of S=1.0,the accelerated rheological phase of creep curves occurred at early time with a trend of failure.The stress level had obvious effects on the final rheological deformation of the soil sample,and the final rheological deformation increments nonlinearly increased with stress level.The final rheological deformation increment and step was little under low stress level,while it became large under high stress level,which showed the nonlinearly rheological properties of the granular soil.The confining pressure also had direct effects on final rheological deformation,and the final rheological deformation linearly increased with confining pressure increments.     

2008年我国房地产业的发展模式与市场把握

在深入市场调查、认真采集数据和科学分析研究的基础上,从我国新一年房地产业发展的"背景和环境"、"预期和责任"、"风险和影响"、"保障和创新"等方面进行阐述和论证.     

窃取商业秘密获得的专利权归商业秘密权利人所有——兼谈商业秘密构成要件和范围

中国加入WTO以后,知识产权的保护意识日益强化,作为知识产权范畴的专利权更是被人们普遍关注和重视.以"错案"为研究对象,运用商业秘密的有关理论以及保护商业秘密和专利权的有关法律制度,特别是从窃取商业秘密获得的专利权归谁所有的角度,对人民法院的判决进行了分析研究,指出了人民法院的判决是错误的,提出了窃取商业秘密获得的专利权归商业秘密权利人所有.这有利于人民法院公正司法,依法审判.     

从语气助词的角度浅析日语表达方式的特性

日语中有着十分丰富的语气助词,其虽然不具有实际的意义,然而通过语气助词,却能够流露出说话者的心情和感受,传递出不溢于言表的隐性含义,在日常的表达中扮演着十分重要的角色.从语气助词的角度,分析总结日语在表达上所具有的特性.     

Additional water use influencing strength and fluidity of recycled concrete

Through adding different additional water use,the compressive strength,splitting tensile strength and fluidity of recycled concrete of three aggregate combination forms were studied by experiment respectively.The experimental results show that with the increase of adding additional water use,the compressive strength and splitting tensile strength of recycled coarse aggregate concrete decrease,but that of recycled fine aggregate concrete and recycled all aggregate concrete increase firstly then decrease.When additional water use is added more 15% or 20% than that of basic ordinary concrete,the recycled coarse aggregate concrete and fine one can get pretty good fluidity.When it is added more 30%,the recycled all aggregate concrete has fluidity that is just satisfied.     

情趣与意象的契合——《逢雪宿芙蓉山主人》与《雪夜林边驻脚》之比较

通过分析《逢雪宿芙蓉山主人》与《雪夜林边驻脚》两诗的情趣和意象,发现两诗都采用了大致相似的意象.但由于诗人各自的文化传统的差异,在两诗中所传达的情趣却不同.然而,正是由于两诗各自在情趣与意象上的契合,才创造出了各自完美的诗境.     

全面创新审计模型及其应用研究

本文在回顾前人技术创新审计理论及模型的基础上,界定了创新型企业和全面创新审计模型,进一步开发了全面创新审计记分卡,并在浙江区域范围内的创新型企业中进行了试验性应用,实证检验了全面创新审计模型和创新型企业评价标准。     

实施弹性教学管理,构建创新教育环境

针对创新型国家建设对教育提出的要求,研究在创新教育背景下我国高等学校的弹性教学管理模式,探讨弹性教学管理的新机制.提出完善弹性教学管理、构建创新教育环境的措施和对策,促使教学管理不断适应创新教育的需要.     

试论德育在培养创新人才中的重要作用

德育在新世纪创新人才的培养中有着不可替代的重要作用,良好的德育素质有利于创新意识的培养,有利于创新人才个性的形成。因此,新时期的德育要着力提高学生的道德判断力,堵养创新人才的综合素质。     

药学专业教育应重视学生创新能力的培养

创新能力是我国医药科技发展对药学专业技术人才素质的客观需要，在教学和实验过程中进行创新教育，是培养学生创新能力的基本途径。本就药学专业学生创新意识和创造能力的培养作一探讨。     

中外创新型城市界定比较及再思考

针对国内外关于创新型城市研究中,众多学者对创新型城市给出的不同定义,显示出目前对创新型城市的认识仍然没有统一的情况,通过分析国内外创新型城市的代表性定义,并在比较其差异的基础上,从创新资源与能力的角度重新界定创新型城市,认为创新型城市是城市创新资源集聚和创新能力持续提升,并达到一定高度,使得创新成为城市发展的主导驱动力。     

阻碍创新教育的学校文化因素浅析

学校是培养人才的场所，本应承担起培养学生创新素质，发展创新才能的历史使命，但事与愿违，学校教育所形成的化氛围却成为创新教育的极大障碍。过分崇尚知识，强调同一，重视纪委约束的学校教育化在很大程度上制约着学生创新素质的发展，阻滞着创新教育的实施。     

浅谈工科院校创新思维与创新能力的培养途径

随着时代的发展,社会对人才的要求越来越侧重于其是否具备创新思维和创新能力.大学生创新能力的培养是高校教育改革的重要内容.大学物理是工科院校的公共基础课程,在教学过程中对培养学生创新思维与创新能力的途径进行探讨具有实际意义,实践证明其中的许多方法是可行的.     

大学生创新实验项目的认知与认可度研究

为全面了解和反映不同年级大学生对《国家大学生创新性实验计划》的认知度和认可度,探究大学生创新精神和实践能力培养的途径,保障大学生创新性实验计划的实施效果,采用文献综述、问卷调查等研究方法,对大连理工大学生命科学与技术学院2007、2008和2009级180名本科生进行问卷调查,从参与兴趣与期望、课题和导师的选择、项目执行情况及影响因素,以及成果预期等方面,研究了不同年级大学生对创新实验项目的认知和认可程度,调查结果表明,学生的参与程度、教师的实践能力和责任心、题目的难易程度与成果水平是影响大学生创新性实验计划长期实施的重要因素,并有针对性地提出了相应的建议。     

高职院校生产性创新型实训基地模式探索——以辽宁机电职业技术学院为例

阐述了辽宁机电职业技术学院以教学产品为纽带的校内生产(服务)性实训基地——计算机应用技术实训基地、以"模拟"教学产品为纽带的校内生产(服务)性实训基地——自动化技术实训基地、具有产品生产(服务)特征的校内实训基地——材料成型技术实训基地三个典型的生产性创新型实训基地方案,指出随着职教理念和人才培养模式的不断发展,高职院校内的实训基地其内涵和模式也在不断的改革和发展,并就创新型实训基地建设模式进行了探索与研究。     

大学生创新素质的量质化评价

随着科学技术的迅猛发展．知识经济对高等教育培养和造就大批创新人才提出了迫切的要求，而如何来评价和衡量一名大学生是否是创新人才．他应具有哪些方面的创新素质，长期困扰着整个教育界和实业界。鉴于此，在明确大学生的创新素质评价理论依据和基本原则的基础上．力争科学合理地构建适应创新人才培养的素质评价体系，以期为教育界和实业界提供借鉴。