除盐水加氢催化除氧试验研究

以强碱性阴离子交换树脂为载体负载纳米金属钯制备催化树脂,研究了催化树脂的特性及其对除盐水加氢除氧的催化作用.结果表明:载钯树脂的催化活性高、稳定性好;在载钯树脂的催化作用下,用除盐水加氢除氧,溶解氧质量浓度可降到20μg/L以下,水温、p H对除氧基本无影响,溶解氧去除率随氢气加入量增加而升高,低运行流速对除氧基本无影响,运行流速大于50 m/h,溶解氧去除率下降.     

强酸工艺下改性脲醛树脂胶的合成原理及应用

通过系列试验和研究,找到了解决强酸工艺制胶易凝胶问题的关键,并从反应原理上进行了分析和解释。用于压制建筑模板,其质量符合GB/T17656—2008《混凝土模板用胶合板》的要求,并大幅度降低了胶黏剂成本。     

Interplay between personal goals and classroom goal structures in predicting student outcomes: A multilevel analysis of person-context interactions.

This study examined cross-level interactions between personal goals and classroom goal structures, as well as their additive contributions to predicting math achievement, engagement, interest, effort withdrawal, and avoidance coping, using a sample of 3,943 Grade 5 students from 130 classrooms. Results of hierarchical linear modeling showed that classroom performance goal structures exacerbated (a) the negative association between personal performance-avoidance goals and engagement and (b) the positive relations of personal performance-avoidance goals to effort withdrawal and avoidance coping. Moreover, both classroom performance goal structures and personal performance-avoidance goals had maladaptive patterns of relations to outcomes at their respective levels of analysis, whereas classroom mastery goal structures and personal mastery goals showed adaptive relations. Our findings underscore the importance of a multilevel interactionist perspective in understanding achievement motivation and making recommendations for educational practices. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

柴达木盆地三湖地区天然气有利勘探区带(目标)遥感物化探综合分析与评价

柴达木盆地三湖地区第四系生物气藏构造平缓、地层压实作用小、孔隙度大、埋藏浅、累计厚度大等独特的地质特点,决定了第四系生物气藏具有独特的地表地形、地球物理和地面化探异常。据此,针对该地区浅层生物气进行了遥感、物化探综合处理解释和预测。通过与台南、涩北1号等气田对比分析,提出了三湖气藏与重力负异常高度吻合、低幅度构造及化探甲烷高值异常的分布特征认识;并综合各种资料预测了台吉乃尔—驼峰山—盐湖北西西向、台南—涩北1号—涩北2号近东西向、达布逊湖东南北向3个进一步勘探的有利区带,涩聂湖北、达布逊湖区及西部2个较有利区带,以及涩北2号气田东、盐湖气田西和台南气田东3个有利目标。     

含有三次非线性的粘性阻尼双线性迟滞振动系统的响应计算

研究了一类无记忆恢复力中含有位移三次非线性的粘性阻尼双线性迟滞振动系统的响应计算问题，提出了一种Fourier级数展开法与系统处于特殊点时的运动方程相结合的近似解法，该方法可靠、编程简单，具有较好的工程实用性。