一种基于融合技术的图像边缘检测方案

从信息融合的角度出发,直接运用运算量较小的梯度算子,在分析各种简单梯度算子的互补特性的基础上,将空们有机地融合,其中融合的权重自适应地调整。针对梯度算子在检测边缘时对像素点具有扩散作用及边缘定位不准确等问题,本文采用了松弛标记的技术将融合后的边缘进行了细化,在计算量不显著增加的前提下,提高了边缘检测的质量。     

电子电路故障诊断的神经网络数据融合算法

针对模拟电路故障元件诊断的不确定性问题,将BP网络引入数据融合之中,结合模糊集合论,构造－模糊神经网络故障分类器,并将其应用于电子电路故障诊断之中。通过测试电子电路中被诊断元件的工作温度和工作电压这2个物理量,求出两传感器对各待诊断元件的故障隶属度,利用模糊BP网络故障分类器进行数据融合,得到融合的各待诊断元件的故障隶属度,从而确定故障元件,并通过单传感器诊断结果与融合诊断结果比较,说明多传感器融合的优越性。     

单脉冲激光加热下金属材料的非线性温度场研究

建立了单脉冲激光加热下金属材料非线性温度场的简单物理模型,并进行了解析研究,所得研究与实验结果基本符合。     

基于Dempster-Shafer证据理论的数据融合技术研究

系统地研究了Dempster-Shafer（D－S）证据推理的数据融合技术,分析了传感器基本概率分配函数（basic probability assignment-BPA)的构造方法,分别对双传感器随参数分布的几种情况进行了检测融合,利用红外场景生成器生成的3－5μm和8－12μm双通道的红外背景及目标的序列图像,仿真了融合对探测操作特性（receiver operating character-ROC)曲线的性能改进,对AGEMA THV900型双通道红外热像仪的小目标图像也开展了实验处理,均取得了预期的结果。     

激光焊接温度场解析计算

提出了一种激光焊接温度场的解析计算方法,将激光作用下形成的小孔区域作为均匀吸收介质,导出介质热源的功率分布三维解析式,以及由该热源引起的无限大薄板的温度场分布解析式。计算和实验验证该解析式的正确性,理论计算和实验结果符合较好,当小孔深度为零时,介质热源即为表面热源,所得到的解析式与其它热传导焊理论解析式一致。     

LOM中激光功率与扫描速度的匹配模型

经分析与实验,认为扫描速度与激光功率是影响原型成形质量的两个关键因素,从能量守恒原理出发,结合LOM原型制造工艺的具体要求,建立扫描速度与激光功率之间的正比模型,采用跟踪耦合式控制系统可以实现两者的良好匹配,并能保证LOM原型的成形质量,同时讨论跟踪耦合控制系统的适应性,它不仅适用于LOM原型制造工艺,还适用于FDM,SLS,SLA等多种快速原型制造工艺。     

脉冲固体激光束发散角的测试与研究

针对脉冲固体激光器激光束发散角的测量,分析了一些传统的测量方法。在烧蚀法的基础上,力图从光斑场空域强度着手,采用工程常用的半宽度定义,提出新的测量光斑半径的方法。     

Expression of soluble human tumor necrosis factor receptor Ⅰ in Aspergillus niger

The cDNA of soluble human tumor necrosis factor receptorⅠ(sTNFRI) was inserted into fusion-protein expression plasmid pIGF of A. niger to construct fusion expression vector pHBC containing a KEX2 like protein processing site designed on the fusion position. Extracellular protease-deficient strain of A. niger 3.795-1-23 was transformed with pHBC. Positive clone was estimated by Southern hybridization. SDS-PAGE for protein produced by recombinant strain showed the distinctive expression band. Western blotting indicated that the secreted protein had immunoactivity of sTNFRI.     

"气泡聚变"与冷聚变

论述了“气泡聚变”与冷聚变都属于新型聚变，指出中性粒子与核的聚变可在任何温度条件下进行，强调要用新观念与新思维来正确对待新奇核现象。     

Expression, purification of a synthetic fuse-protein-TSF from PF4 and TSP1 fragments and its effect on angiogenesis and tumor growth

Sequences encoding PF4 (58–70) and TSP1 (429–459) were linked to yield a single gene TSF which encodes the fuse-protein of TSF. The gene was cloned into a pGEX-2T expression vector to generate a protein GST-TSF, which was strongly expressed inE. coli. The purified GST-TSF was degraded with thrombin to generate the protein TSF. With the methods of MTT and wound repair assay, the effects of TSF on the proliferation and migration of EC were detected, respectively. The results showed that TSF significantly suppressed BAEC proliferation and migration in a dose-dependent manner. The fuse protein GST-TSF, and the peptides PF4 (58–70) and TSP1 (429–459) also inhibited BAEC proliferation and migration, respectively, but their inhibition rates were not as high as TSF. Using the CAM assay, it was shown that TSF, GST-TSF, PF4 (58–70) and TSP1 (429–459) inhibited angiogenesis in chick CAM potentially, the effect of TSF was the highest.In vivo, the growth of Lewis lung carcinoma was potently inhibited by TSF treatment, and the inhibition rate was 68.75% at a dose of 1.00 μmol/kg · d. These findings suggest that the design on TSF gene was successful, and TSF with its anti-angiogenic and anti-tumor activity, should be a useful source of the inhibitor.