C语言程序关键词序列表示法

提出C语言程序关键词序列表示法,以消除由于个性化编程所造成的代码的不同,以证明程序是相同的.     

Robust moving object detection against fast illumination change

To solve the problem due to fast illumination change in a visual surveillance system, we propose a novel moving object detection algorithm for which we develop an illumination change model, a chromaticity difference model, and a brightness ratio model. When fast illumination change occurs, background pixels as well as moving object pixels are detected as foreground pixels. To separate detected foreground pixels into moving object pixels and false foreground pixels, we develop a chromaticity difference model and a brightness ratio model that estimates the intensity difference and intensity ratio of false foreground pixels, respectively. These models are based on the proposed illumination change model. Based on experimental results, the proposed method shows excellent performance under various illumination change conditions while operating in real-time.     

Computer-aided diagnosis of mass-like lesion in breast MRI: Differential analysis of the 3-D morphology between benign and malignant tumors

This study aimed to evaluate the value of using 3-D breast MRI morphologic features to differentiate benign and malignant breast lesions. The 3-D morphological features extracted from breast MRI were used to analyze the malignant likelihood of tumor from ninety-five solid breast masses (44 benign and 51 malignant) of 82 patients. Each mass-like lesion was examined with regards to three categories of morphologic features, including texture-based gray-level co-occurrence matrix (GLCM) feature, shape, and ellipsoid fitting features. For obtaining a robust combination of features from different categories, the biserial correlation coefficient (|r_pb|) ≧ 0.4 was used as the feature selection criterion. Receiver operating characteristic (ROC) curve was used to evaluate performance and Student's t-test to verify the classification accuracy. The combination of the selected 3-D morphological features, including conventional compactness, radius, spiculation, surface ratio, volume covering ratio, number of inside angular regions, sum of number of inside and outside angular regions, showed an accuracy of 88.42% (84/95), sensitivity of 88.24% (45/51), and specificity of 88.64% (39/44), respectively. The A_Z value was 0.8926 for these seven combined morphological features. In conclusion, 3-D MR morphological features specified by GLCM, tumor shape and ellipsoid fitting were useful for differentiating benign and malignant breast masses.     

异构软件体系结构的可靠性模型

现有基于软件体系结构的可靠性模型只适用于符合马尔可夫过程的软件构件转移关系,而当构件间存在由确定性和随机性转移关系组成的异构结构时,仍按照马尔可夫过程对软件体系结构建模,会导致可靠性评估结果不准确。为了解决现有模型不适用于异构结构的问题,在分析构件转移关系基础上,提出了一个新的软件可靠性模型。基于软件UML顺序图,提出将异构软件结构转换为马尔可夫链的算法。通过对一个实例的可靠性评估,验证了新模型能够比现有模型获得更准确的评估结果。     

基于自动测试系统的故障诊断专家系统

为在武器装备自动测试平台上建立故障诊断专家系统，介绍了一种新型的数据库访问技术ADO。作为实例，在自动测试平台上利用ADO技术实现了测试结果的读取，将测试数据作为故障诊断的入口参数，结合SQL语言在规则库中实现了推理机制，最后，用Visual C 语言实现了编程。     

The Use of Distinctive Monoclonal Antibodies in FMD VLP- and P1-Based Blocking ELISA for the Seromonitoring of Vaccinated Swine

The serum neutralization (SN) test has been regarded as the “gold standard” for seroconversion following foot-and-mouth disease virus (FMDV) vaccination, although a high-level biosafety laboratory is necessary. ELISA is one alternative, and its format is constantly being improved. For instance, standard polyclonal antisera have been replaced by monoclonal antibodies (MAbs) for catching and detecting antibodies, and inactive viruses have been replaced by virus-like particles (VLPs). To the best of current knowledge, however, no researchers have evaluated the performances of different MAbs as tracers. In previous studies, we successfully identified site 1 and site 2 MAbs Q10E and P11A. In this study, following the established screening platform, the VLPs of putative escape mutants from sites 1 to 5 were expressed and used to demonstrate that S11B is a site 3 MAb. Additionally, the vulnerability of VLPs prompted us to assess another diagnostic antigen: unprocessed polyprotein P1. Therefore, we established and evaluated the performance of blocking ELISA (bELISA) systems based on VLPs and P1, pairing them with Q10E, P11A, S11B, and the non-neutralizing TSG MAb as tracers. The results indicated that the VLP paired with S11B demonstrated the highest correlation with the SN titers (R² = 0.8071, n = 63). Excluding weakly positive serum samples (SN = 16–32, n = 14), the sensitivity and specificity were 95.65% and 96.15% (kappa = 0.92), respectively. Additionally, the P1 pairing with Q10E also demonstrated a high correlation (R² = 0.768). We also discovered that these four antibodies had steric effects on one another to varying degrees, despite recognizing distinct antigenic sites. This finding indicated that MAbs as tracers could not accurately detect specific antibodies, possibly because MAbs are bulky compared to a protomeric unit. However, our results still provide convincing support for the application of two pairs of bELISA systems: VLP:S11B-HRP and P1:Q10E-HRP.     

赤小豆萌芽最佳抗敏天数及相关活性物质研究

通过透明质酸酶体外抑制实验测定不同萌芽天数(0~6d)赤小豆抗敏活性,同时测定不同萌芽天数(0~6d)赤小豆中总皂苷、总多酚及总多糖含量,并与透明质酸酶抑制活性进行相关性分析。结果表明:赤小豆萌芽第4d抗敏效果最佳,各成分在萌芽过程中的变化不同,结合萌芽过程中多酚、多糖和皂苷类成分总含量的变化,确定多酚类物质是赤小豆萌芽中的主要抗敏活性物质。      

塔河油田底水砂岩油藏水平井剩余油主控因素分析

针对塔河油田一区、九区等强底水砂岩油藏高含水期油水关系复杂、影响因素多、剩余油认识不清造成措施难度大的特点,分析了不同主控因素下水淹模式及剩余油的形成和分布特征。从水平井轨迹与夹层不同的配置关系入手,将轨迹与夹层的配置关系分为全遮挡型、穿行夹层型、穿过夹层型和半遮挡型4种配置关系。根据渗透率组合形态将水平段渗透率组合分为4种形态:两段式、锯齿式、台阶式和均匀式,并结合油井生产动态研究了不同配置关系及渗透率形态所对应的水平段水淹模式,描述其对剩余油不同控制作用,并结合矿场试验给出各种剩余油赋存方式适合的挖潜手段,为底水油藏剩余油精细挖潜提供依据。