亚胺基团对Schiff碱基过渡金属聚合物电化学性能的影响

采用化学合成法分别制备具有不同亚胺基团的单体Ni（salen）、Ni（salphen）,并分别配制成浓度为1 mmol/L单体溶液.在电化学工作站上,以制备好的碳纳米管电极片为工作电极,用循环伏安法进行电化学聚合得到对应的Schiff碱基过渡金属聚合物.用场发射扫描电镜观察聚合物的微观形貌,以及进行循环伏安法、恒流充放电法、交流阻抗谱测试.结果显示,聚合物poly[Ni（salen）]在碳纳米管层表面形成了带状聚合物,而聚合物poly[Ni（salphen）]沿着碳纳米管沉积生长.经测试得知：聚合物poly[Ni（salen）]和poly[Ni（salphen）]的最大电荷扩散系数分别为1.86×10-9 cm2/s、1.23×10-8 cm2/s,并且在0.05 mA/cm2下的比容量分别为66.6 F/g、106.3 F/g.具有亚胺苯环基团的Schiff 碱基过渡金属聚合物电化学性能较具有亚胺乙基基团的电化学性能更好.     

以原子半径和电负性预测玻璃形成能力

提出了一个基于合金组元原子半径和电负性判断非晶形成能力的方法.建立了原子半径差与电负性差之比Δd/Δe与临界冷却速度R_c的数值模型,并在所有五种不同合金系中获得一致且开口向上的抛物线关系.在此基础上,设计并制备了四种不同成分的Zr-Al-Ni-Cu金属玻璃,并测量它们的临界尺寸Z_max、过冷液相区间ΔT_x和约化玻璃转变温度T_rg.结果表明,Zr₅₄Al₁₃Ni₁₅Cu₁₈的玻璃形成能力最佳,而且用Δd/Δe模型预测的四种金属玻璃的玻璃形成能力顺序与所有实测参数(包括Z_max、ΔT_x和T_rg)表征的顺序基本一致.因此,用Δd/Δe的预测方法比较同一合金系内不同合金之间玻璃形成能力的优劣是可靠的.     

NMR求解多孔固体孔径分布的逐步回归方法

探讨了用NMR方法求解多孔固体孔径分布中有关病态积分方程的求解问题,借助于数理统计中的逐步回归分析,加入非负限制,给出了一个新的求解方法.这种方法数值上很稳定,计算量小,可以给出较为连续的f(T₁)分布曲线,并采用岭回归和Hesse光滑方法抑制噪声的影响.从所给出的计算实例看出,这种方法有一定的优越性.     

基于NMR和压汞资料的碳酸盐岩储层渗透率建模方法

由于碳酸盐岩储层存在严重的非均质性,常用的根据孔渗关系求取储层渗透率的方式得到的渗透率与实际相差较大,不适用于现实的生产。根据碳酸盐岩渗透率的大小主要受到孔隙结构的制约,而核磁共振(NMR)的T2分布情况、压汞的毛管压力曲线和储层孔隙结构关系密切的实情,给出了基于NMR与压汞资料的渗透率模型,该模型与经典的SDR模型和Timur-Coates模型相比精度较高。通过分析中东H油田M层组121块碳酸盐岩样品的NMR和压汞资料,可以看出Swanson参数、R35、R40与储层渗透率有较好的相关关系,同时在Swanson参数、R35、R40中Swanson参数与核磁共振T2LM之间的相关性最好。因此针对压汞资料较少的问题,给出了利用NMR的T2LM计算Swanson参数,从而获得储层渗透率的方法。将该方法应用于中东H油田M井,计算获得的渗透率大小与储层的岩心渗透率大小相近,证明该方法是可靠的。     

有关数学期望计算的一个典型错误

对条件期望与无条件期望混淆不分,是计算二维随机变量函数数学期望时常犯的典型错误之一,结合实例分析,指出合理利用随机变量函数数学期望的定义或全概率公式,可避免此类错误的产生.     

连杆机构运动轨迹的计算方法

简述利用CAXA电子图板中公式曲线命令来快速计算平面连杆机构运动轨迹的方法。用该方法可以达到用解析法计算的精度。     

管式炉的计算方法

管式加热炉占了许多工厂的基建投资的大部分,而它所耗用的燃料也成为主要的操作费用。因此对制造厂和生产厂的技术人员来说,都需要一个可靠的计算方法。     

专利名称：制备无水甲酸的设备和方法

本发明涉及获得无水或基本无水甲酸的设备和方法。该设备部分或全部用不含锆的材料建造。使用通式的液体作为萃取剂，其中基团R^1和R^2是烷基、环烷基、芳基或芳烷基，或R^1和R^2与N原子一起构成5-或6-元杂环，并且其中只有一个基团是芳基，R^3是氢或C1-C4烷基。     

群体决策协调方法研究

阐述了群体对结构化问题做决策的协调及实现方法,以及对结构不良问题做决策的设想.     

The Contagious Leader: Impact of the Leader's Mood on the Mood of Group Members, Group Affective Tone, and Group Processes.

The present study examined the effects of leaders' mood on (a) the mood of individual group members, (b) the affective tone of groups, and (c) 3 group processes: coordination, effort expenditure, and task strategy. On the basis of a mood contagion model, the authors found that when leaders were in a positive mood, in comparison to a negative mood, (a) individual group members experienced more positive and less negative mood, and (b) groups had a more positive and a less negative affective tone. The authors also found that groups with leaders in a positive mood exhibited more coordination and expended less effort than did groups with leaders in a negative mood. Applied implications of the results are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Group psychotherapy specialty practice.

Group psychotherapy (mental health treatment-focused interventions based in social psychological research on group dynamics) is a growing specialization within psychology, not yet fully recognized by the public and the professional community. This article aims to inform the reader about the multiple components of training, practice, and research. Many graduate programs are teaching fewer group courses than ever before despite the fact that groups are being utilized increasingly in many settings. As defined, group specialty practice covers small, medium, and large groups led by expert leaders or coleaders specifically trained in group intervention skills, which are based on a rich history. Group typologies range from prevention and education to growth, counseling, or psychotherapy (although some controversy exists regarding definitions). Still, a consensus exists that it has more to do with who the members are and in what settings groups occur. Group practice is well-established given the extant evidence-based research, the depth and breadth of its utilization, and professional organizations--such as the Council of Specialties and the American Board of Professional Psychology--that officially recognize group practice. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

成组技术在冷却壁制造中的应用

通过分析高炉冷却壁的生产现状,应用成组技术的相似性原理,按照零件的局部相似性或生产过程的相似性,将零件分类成组,设计并应用了适合成组零件的组合工装,缩短了制造周期,提高了生产效率,使单件小批生产获得了类似批量生产的经济效益。     

An Investigation of Group Leaders' Intentions.

Stimulated recall methods were used to assist 34 group leaders in recalling their intentions (i.e., purposes, plans, goals) in relation to interventions they made in a group session. A total of 835 intentions were reported by the leaders and were categorized into 6 separate intention categories by trained judges. The categories included directing the group, gathering information and assessing members, challenging members, attending to and validating members' experiences, directing self, and promoting connections and interactions among group members. Multidimensional scaling procedures revealed 4 intention clusters: Promoting Insight/Change, Planning and Guiding, Attending, and Assessing Growth. Limitations of the study are addressed, along with implications for future research and group leader training. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Group manual dexterity in women.

To determine the extent to which group performance could be predicted from knowledge of the performance of the group's members, 60 pairs of university women were first given six individual trials on a modified Purdue Pegboard task, and then six trials in which the members of the pair worked together. For each pair, the 'high' and 'low' scorer (on the individual trials) was identified, and correlations were calculated between the 'high' score, the 'low' score, the difference score, and the score for the pair on the second set of trials. These results are compared with previous results from men students. "The most important fact which emerges… is that a surprisingly small proportion of the total variance on the group-performance task can be predicted… [from the individual-performance scores]… " (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Group interaction and perceived simliarity of members.

The hypothesis being tested was that perceived similarity of other members of a group with oneself was a function of the degree of interaction in the group. An experimental situation (making lists of geographical names with or without the assistance of group members) offered the possibility to vary the degree of group interaction. The findings revealed that assumed (perceived) similarity between Ss was a function of degree of group interaction only when Ss did not know each other beforehand. From Psyc Abstracts 36:02:2GE35S. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Group Cohesiveness, Group-Derived Collective Self-Esteem, Group-Derived Hope, and the Well-Being of Group Therapy Members.

I. D. Yalom's (1995) hypothesis that group therapy cohesiveness is the precursor to the development of group-derived collective self-esteem (CSE), hope for the self (HS), and psychological well-being (personal self-esteem and depression) was tested. Participants were 102 university counseling center group therapy clients from process (n = 54) and theme (n = 48) groups. Path analyses supported Yalom's theory that cohesiveness is the primary group factor and that it directly related to curative group factors such as CSE and HS. Additional path analyses showed that the relationship between group therapy CSE and personal self-esteem was moderated by HS, such that a significant relationship between CSE and personal self-esteem was no longer found once HS was entered into the model. Implications of these findings for research and practice are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

行业分析法应用于高职机械专业群课程开发的探索

从行业分析法入手,分析了高职机械专业群必须具备的一般能力、专业基础能力和专业技术能力和应具备的八个方面的知识,从而设计出机械专业群能力、知识和素质结构图,完成课程开发中的课程分析和课程设计工作。