粒度组成对KR搅拌头用浇注料性能的影响

以Andreassen颗粒紧密堆积理论为基础,研究KR搅拌头外衬莫来石浇注料临界粒度和粒度组成对其密度、强度和热震稳定性的影响.结果表明,随着临界粒度的增大,浇注料干燥和烧结后冷态密度与强度均明显提高;临界粒度一定时,粒度组成对浇注料冷态密度、强度以及热震稳定性的影响基本一致,但临界粒度不同的浇注料试样达到最佳性能所对应的粒度组成并不完全相同;与冷态性能相比,浇注料热震稳定性受临界粒度的影响较小.     

支持风险投资的政策体系和制度设计研究

风险投资产业的蓬勃发展,需要政府部门的大力支持和推进。首先对现有国内外支持风险投资的政策进行了分析和评价,进而探讨了促进风险投资的制度设计。通过整合一系列的资源要素,形成系统化的制度环境,我国未来的风险投资产业将能够获得长足的发展。     

浅淡高校理工科食品专业实验教学与实践基地教学的结合

结合吉首大学食品科学与工程学院在实验教学与实践基地教学相结合方面的教学实践,提出了高校培养应用型食品专业人才的具体做法和教改重点.     

An Efficient Multidimensional Fusion Algorithm for IoT Data Based on Partitioning

The Internet of Things (IoT) implies a worldwide network of interconnected objects uniquely addressable, via standard communication protocols. The prevalence of IoT is bound to generate large amounts of multisource, heterogeneous, dynamic, and sparse data. However, IoT offers inconsequential practical benefits without the ability to integrate, fuse, and glean useful information from such massive amounts of data. Accordingly, preparing us for the imminent invasion of things, a tool called data fusion can be used to manipulate and manage such data in order to improve process efficiency and provide advanced intelligence. In order to determine an acceptable quality of intelligence, diverse and voluminous data have to be combined and fused. Therefore, it is imperative to improve the computational efficiency for fusing and mining multidimensional data. In this paper, we propose an efficient multidimensional fusion algorithm for IoT data based on partitioning. The basic concept involves the partitioning of dimensions (attributes), i.e., a big data set with higher dimensions can be transformed into certain number of relatively smaller data subsets that can be easily processed. Then, based on the partitioning of dimensions, the discernible matrixes of all data subsets in rough set theory are computed to obtain their core attribute sets. Furthermore, a global core attribute set can be determined. Finally, the attribute reduction and rule extraction methods are used to obtain the fusion results. By means of proving a few theorems and simulation, the correctness and effectiveness of this algorithm is illustrated.     

知识转移的心理基础探析

介绍了知识转移的概念及过程,以管理心理学相关理论为基础,重点分析了知识转移过程中涉及的人的心理动机因素,提出了相关激励措施.     

Simultaneous mineralization of CO2 and recovery of soluble potassium using earth-abundant potassium feldspar

CO2 capture and storage(CCS) is an important strategy in combatting anthropogenic climate change.However,commercial application of the CCS technique is currently hampered by its high energy expenditure and costs.To overcome this issue,CO2 capture and utilization(CCU) is a promising CO2 disposal method.We,for the first time,developed a promising method to mineralize CO2 using earth-abundant potassium feldspar in order to effectively reduce CO2 emissions.Our experiments demonstrate that,after adding calcium chloride hexahydrate as an additive,the K-feldspar can be transformed to Ca-silicates at 800 C,which can easily mineralize CO2 to form stable calcium carbonate and recover soluble potassium.The conversion of this process reached 84.7%.With further study,the pretreatment temperature can be reduced to 250 C using hydrothermal method by adding the solution of triethanolamine(TEA).The highest conversion can be reached 40.1%.The process of simultaneous mineralization of CO2 and recovery of soluble potassium can be easily implemented in practice and may provide an economically feasible way to tackle global anthropogenic climate change.     

库普河大桥T梁预制的质量控制和外观缺陷处理探讨

文章针对库普河大桥预制T梁的质量控制、外观缺陷处理，分析过程并提出处理方法和预防措施，以期达到使T梁的质量得到保证。     

教育机构品牌调研及广州学习型城市品牌建设

本文通过分析广州地区知名教育机构品牌形象调查结果,挖掘教育机构品牌建设的先进经验,提出广州学习型城市品牌建设与宣传推广的原则、建设步骤、宣传推广模式及运行机制。     

Uniform optimal-order estimates for finite element methods for advection-diffusion equations

This article summarizes our recent work on uniform error estimates for various finite element methods for time-dependent advection-diffusion equations.     

CFRP 与GFRP加固修复钢梁的对比试验研究

本文通过试验研究,用玻璃纤维布和碳纤维布分别加固完好钢梁,实测粘结不同纤维复合材料情况下钢梁的荷载-位移曲线和承载力,以评估粘贴CFRP、GFRP是否能有效地改善钢梁的受力性能和对比分析这2种材料的加固效果,为加固工程设计提供有效的参数.