Image superresolution using support vector regression.

A thorough investigation of the application of support vector regression (SVR) to the superresolution problem is conducted through various frameworks. Prior to the study, the SVR problem is enhanced by finding the optimal kernel. This is done by formulating the kernel learning problem in SVR form as a convex optimization problem, specifically a semi-definite programming (SDP) problem. An additional constraint is added to reduce the SDP to a quadratically constrained quadratic programming (QCQP) problem. After this optimization, investigation of the relevancy of SVR to superresolution proceeds with the possibility of using a single and general support vector regression for all image content, and the results are impressive for small training sets. This idea is improved upon by observing structural properties in the discrete cosine transform (DCT) domain to aid in learning the regression. Further improvement involves a combination of classification and SVR-based techniques, extending works in resolution synthesis. This method, termed kernel resolution synthesis, uses specific regressors for isolated image content to describe the domain through a partitioned look of the vector space, thereby yielding good results.     

TR1, a new member of the tumor necrosis factor receptor superfamily, induces fibroblast proliferation and inhibits osteoclastogenesis and bone resorption

A newly identified member of the tumor necrosis factor receptor (TNFR) superfamily shows activities associated with osteoclastogenesis inhibition and fibroblast proliferation. This new member, called TR1, was identified from a search of an expressed sequence tag database, and encodes 401 amino acids with a 21-residue signal sequence. Unlike other members of TNFR, TR1 does not contain a transmembrane domain and is secreted as a 62 kDa glycoprotein. TR1 gene maps to chromosome 8q23-24.1 and its mRNA is abundantly expressed on primary osteoblasts, osteogenic sarcoma cell lines, and primary fibroblasts. The receptors for TR1 were detected on a monocytic cell line (THP-1) and in human fibroblasts. Scatchard analyses indicated two classes of high and medium-high affinity receptors with a kD of approximately 45 and 320 pM, respectively. Recombinant TR1 induced proliferation of human foreskin fibroblasts and potentiated TNF-induced proliferation in these cells. In a coculture system of osteoblasts and bone marrow cells, recombinant TR1 completely inhibited the differentiation of osteoclast-like multinucleated cell formation in the presence of several bone-resorbing factors. TR1 also strongly inhibited bone-resorbing function on dentine slices by mature osteoclasts and decreased 45Ca release in fetal long-bone organ cultures. Anti-TR1 monoclonal antibody promoted the formation of osteoclasts in mouse marrow culture assays. These results indicate that TR1 has broad biological activities in fibroblast growth and in osteoclast differentiation and its functions.     

苯硝化反应器放大设计

简要介绍了50kt.a硝基苯装置用混酸作硝化剂的苯硝化反应机理、反应特点,以及苯硝化反应器放大设计主要工艺参数的确定,及实现这些工艺条件必须采取的技术措施和控制手段,并对设计中存在的问题进行分析并提出改进建议。     

一类非线性微分方程组解的稳定性判定方法

考虑具有非线性控制项的一类微分方程组的稳定性，在适当的条件下，采用逐次渐近的方法，得到了稳定性的判别方法。     

TDA4501—TDA3565亮度通道CAD优化设计

本文概要介绍如何通过CAA及CAD提高图像分辨率。     

一类非线性不确定系统的鲁棒观测器设计

对于一类非线性不确定系统,给出一种基于观测器的鲁棒稳定控制器设计的新方法,它适 用于一般匹配不确定系统,且对全维和降维两种观测器均进行了研究.设计实例表明,所设计 的控制器反馈增益幅值较小、实现方便.     

高铝粉—匣钵砂水玻璃型壳高温变形温度回归方程研究

本文通过试验和数据处理建立了水玻璃—匣钵砂型壳高温变形的回归方程式并进行了详细的分析,结果表明:高温变形与配料有关;水玻璃密度和粉液比愈高则高温变形温度愈高,低的高铝粉加入量不仅能获得高的高温变形温度,而且型壳的湿强度和900℃焙烧后的型壳强度也提高,此外其残留强度也较小。     

旋转水射流破岩钻孔机理研究

基于水射流破岩钻孔过程中影响因素和流固耦合作用的分析,运用连续损伤力学和细观损伤力学理论,建立了适用于水射流破岩全过程的岩石损伤模型。依据所建立的损伤模型,利用非线性动力有限元方法,对旋转水射流破岩钻孔过程的过程进行了模拟,其中岩石损伤场的求解采用解耦的方法。计算结果与试验一致,表明旋转射流具有较强的破岩能力,其原因是旋转射流的质点具有三维速度,破岩时以倾斜冲击为主,易于在岩石表面形成拉伸和剪切破坏,回流的干扰较少。破岩过程首先是形成一环形破碎带,然后沿径向和轴向发展,所形成的破碎坑呈内凸锥状。旋转射流破岩的优势在于破碎面积大、效率高、破岩比能低,因而旋转水射流能够钻出大直径的岩石孔眼。     

Deep filtration of molten aluminum using ceramic foam filters and ceramic particles with active coatings

The inclusions in molten aluminum were removed using the deep filtration of ceramic foam filters and ceramic particles with active coatings. The results of tensile tests showed that the elongation of the filtered tensile specimen S₆ increases by 17.93 pct, but the tensile strength does not. The scanning electron microscope (SEM) examination showed that the secondary cracks and dimples in the filtered tensile specimen S₆ were finer and more homogeneous than those in the unfiltered tensile specimen S₀. In addition, metallographic examination showed that there were only a few inclusions of approximately 6 μm in diameter in the filtered specimen S₆, but more inclusions of approximately 40 μm in diameter were found in the unfiltered specimen S₀. The filtration efficiency of the coated ceramic particles was higher than that of the coated ceramic foam filters. The active coating could effectively capture the inclusions and dissolve Al₂O₃ in them during filtration.     

油罐汽车卫星定位及电子铅封监管系统

介绍了油罐汽车卫星定位及电子铅封系统的构成、工作原理和功能特点,以及初步的实际运行情况。该系统利用先进的全球卫星定位技术可实时跟踪油罐汽车位置.利用电子铅封实时监测罐车进、出油口的状态,能加强对油罐汽车的管理及提高油罐汽车的调度指挥效率,堵住了私自卸油和利用车辆跑私活的现象。