Microstructural investigation of long-term degradation mechanisms in GFRP dowel bars for jointed concrete pavement

Steel dowel bar is used to transfer loads in concrete pavement slab. However, once the steel dowel bar corrodes, it may cause faults, such as joint freezing in concrete pavement, level differences resulting from spalling or decreased efficiency of load transfer, etc., which are the same problems experienced by typical reinforcing steel. This study evaluated the applicability of glass fiber-reinforced polymer (GFRP) dowel bar as a substitute for steel dowel bar. A microstructural analysis was conducted to examine the decrease in durability of GFRP dowel bar exposed to deterioration environments. To analyze the deterioration mechanism of GFRP dowel bar, scanning electron microscopy was employed and the porosity was measured by the gas absorption method. It was concluded that the longer the GFRP dowel bar was exposed to deterioration environments, the more the interlaminar shear stress decreased. This result was validated by the microstructural analysis. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008     

Gaze cueing of attention: Visual attention, social cognition, and individual differences.

During social interactions, people's eyes convey a wealth of information about their direction of attention and their emotional and mental states. This review aims to provide a comprehensive overview of past and current research into the perception of gaze behavior and its effect on the observer. This encompasses the perception of gaze direction and its influence on perception of the other person, as well as gaze-following behavior such as joint attention, in infant, adult, and clinical populations. Particular focus is given to the gaze-cueing paradigm that has been used to investigate the mechanisms of joint attention. The contribution of this paradigm has been significant and will likely continue to advance knowledge across diverse fields within psychology and neuroscience. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

武钢第二炼钢厂连铸坯喷号机自动控制系统

对武钢第二炼钢厂连铸坯喷号机自动化控制景统配置、网络通讯、伺服控制系统进行了阐述；经运行考验证明系统性能提高、稳定可靠。     

高档工作面顶板管理的几点做法

介绍了9号、10号、11号煤层开采中顶板管理的具体做法，对特殊时期的初采初放和末采回收也做了阐述，并对特殊地质条件下的顶板管理提出了可行的方法。     

现浇钢筋混凝土楼板裂缝原因及施工控制

阐述了现浇混凝土楼板产生裂缝的很多原因，针对炎热干燥气候条件下现浇钢筋混凝土楼板产生裂缝的原因进行了分析，提出施工预防措施，经实践证明，对裂缝的控制是有效的。     

论薄板坯连铸连轧产品质量优势

通过对薄板坯连铸连轧工艺的分析，深入研究了其产品的质量优势，同时还指出了在产品生产过程中需要重点注意解决的一些问题。     

板坯连铸机二切短流程生产线的开发和应用

3^#板坯连铸机二切工序一直不能正常工作，采用了在线切割工艺，根据切割条件和切割周期等参数，结合板坯连铸出坯线短、车间小的特点，确定二切机的位置在距一切终止点15m处。改进了清渣系统，采取了升降挡板和定尺板相结合的定尺方式，设定不同的辊道运输速度等措施，保证了二切设备的正常运行，实现了板坯的热送热装．     

Garner interference reveals dependencies between emotional expression and gaze in face perception.

The relationship between facial expression and gaze processing was investigated with the Garner selective attention paradigm. In Experiment 1, participants performed expression judgments without interference from gaze, but expression interfered with gaze judgments. Experiment 2 replicated these results across different emotions. In both experiments, expression judgments occurred faster than gaze judgments, suggesting that expression was processed before gaze could interfere. In Experiments 3 and 4, the difficulty of the emotion discrimination was increased in two different ways. In both cases, gaze interfered with emotion judgments and vice versa. Furthermore, increasing the difficulty of the emotion discrimination resulted in gaze and expression interactions. Results indicate that expression and gaze interactions are modulated by discriminability. Whereas expression generally interferes with gaze judgments, gaze direction modulates expression processing only when facial emotion is difficult to discriminate. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

混凝土爆扩桩施工技术

结合工程实例详细介绍了混凝土爆扩桩的成孔、爆扩、混凝土浇筑等施工过程,从施工准备、施工工艺、施工检查及应注意的事项几个方面做了具体阐述,使工程桩达到了设计要求,取得了良好的施工效果。     

再生骨料绿化混凝土的研究

本文主要介绍了绿化混凝土的概念、分类,绿化混凝土构筑适合于植物生长环境的措施。通过对再生骨料绿化混凝土的原材料和配合比试验以及物理力学性能及耐久性能试验,为进一步的工程应用提供了可靠的依据。