我校图书馆过期期刊的管理与利用

高校图书馆的任务是为教学科研服务,不仅包括一般图书和现刊的流通服务,而且包括过刊的再利用。我校过刊资源较丰富,但利用率很低。原因是多方面的,就图书馆本身而言,过刊管理,也未跟上。应通过优化馆藏,加强管理,进一步拓宽和完善服务内容等途径,来提高过刊的利用率,实现其价值。     

基于C／S的CAD协同设计环境的产品数据管理技术

数据管理系统是ＣＡＤ协同设计环境核心系统之一。此文介绍了基于Ｃｌｉｅｎｔ／ＳｅｒｖｅｒｒＣＡＤ协同设计环境的数据管理关键技术，看重介绍了数据的模型结构和组织，数据库设计，版本管理，配置管理，数据安全性及一致性控制等内容。最后对系统实际应用效果进行了评价。     

夹钳式承载架结构及应用介绍

介绍了一种在特大型变压器运输中采用的夹钳车承栽架的基本结构,分析了承栽架应具有的各个自由度,并对夹钳式承栽架的不同方案进行了比较和分析。     

4A和13X分子筛去除水中重金属Cd2＋及其吸附性能研究

以4A和13X分子筛为吸附材料,考察废水pH值和Cd2＋初始浓度等对Cd2＋去除率的影响,并研究了分子筛对Cd2＋的吸附性能。结果表明,4A和13X分子筛投加量为0．16 g/L、废水pH值为5、Cd2＋浓度为20 mg/L时,Cd2＋去除率达到95％以上;分子筛对Cd2＋的去除机理以离子交换吸附为主,交换出来的Na＋与分子筛吸附的Cd2＋摩尔浓度比为2;在吸附热力学和动力学方面,4A和13X分子筛均符合Langmuir吸附等温模型和Lagergren二级速率方程,计算的饱和吸附容量 Q0分别为150．15、163．67 mg/g ,二级反应速率常数K2分别为2．45＆#215;10-3、3．96＆#215;10-4 g/（mg ＆#183; s）。该吸附反应是一种单分子层反应速度较快的化学吸附过程。     

矩形花键螺旋沟拉刀一次成型中的数学模拟

给出了矩形花键螺旋沟拉刀一次成型的数学模拟，并用实例验证了模拟的可靠性。     

Superior–Subordinate Relationships in Korean Civil Engineering Companies

The Leader–Member Exchange (LMX) relationship quality between superiors and subordinates in Korean civil engineering companies were empirically examined for superiors’ feedback-seeking behaviors. The results showed that for superiors, affect, loyalty, and contribution toward subordinates were positively related to seeking negative as well as positive feedback from subordinates. From subordinates’ point of view, affect, contribution, and professional respect toward their superiors were positively related to superiors’ negative feedback seeking, but affect was negatively related to superiors’ positive feedback seeking. It was also found that superiors and subordinates were not consensual in LMX and superiors’ feedback-seeking behaviors. For example, for superiors, all of the four LMX dimensions were positively related to superiors’ asking subordinates directly for feedback, whereas for subordinates, none of the LMX dimensions were significantly related to superiors’ asking subordinates directly for feedback. These and other findings are discussed in detail, and implications for the findings are provided.     

Special issue on integrated gasification fuel cell (IGFC) technology

Coal is the primary fossil fuel used globally for electricity generation and chemical products for a long time.How-ever,utilization of coal also results in emis...     

Research Profiling of Nano-enchanced Molecular Imaging Technology

Molecular imaging, as an emerging technique in current medical diagnostics, therapy and biology science, has received more and more attention in academia, industry, as well as medical practices. And the applications of nanotechnology in this field stimulate its development. This paper explores the development of the basic research and applied research on nano-enhanced molecular imaging, and does the in-depth analysis by adopting the bibliometrics method. The results show that the US is the leader in this field, who has the absolute advantages. Germany, UK and France and Japan are the followed ones. The rapidly developing Asian countries , China and South Korea might become the potential competitors. Research network analysis draws the conclusion that the other countries and regions share the same research interests with the US. The US not only take the lead in the researching number, but also directing the future orientation of this field. However, the US has not much international collaboration. The collaboration within the country and regions show that collaboration in this field is limited to the regional adjacency. Disciplinary analysis reveals that the major subjects which relate intimately to the nano-enhanced molecular imaging are chemistry, biomedical science and material science.     

Aligning Crystal Orientation of Poly-Crystalline Bi-Te With a High Magnetic Field

We investigated the effect of aligning crystal orientation in the microstructures containing sub micro-sized grains on the thermoelectric properties for polycrystalline Bi-Te materials.Bi-Te powder,prepared through the conventional pulverization process,was sufficiently dispersed in an appropriate solvent,and then was formed into c-axis aligned green bodies under a designated high magnetic field.The green bodies were sintered with spark-plasma-sintering machine.The degree of crystal alignment of sintered bodies was examined with the electron-back-scatter-diffraction SEM and the X-ray diffraction patterns.It was observed that for both p and n type thermoelectric Bi-Te materials,aligning crystal orientation properly made electrical resistivity decreased with keeping Seebeck coefficient and thermal conductivity remained unchanged.As a typical result,the aligned Bi-Te material with the magnetic field of 10 tesla showed 30%enhancement of the thermoelectric performance.