Luan Jiang

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RATIONALE AND OBJECTIVES Although the spiculation levels of breast mass boundaries are a primary sign of malignancy for masses detected on mammography, developing an automated computerized method to detect spiculation levels and quantitatively evaluating the performance of such a method is a difficult task. The objectives of this study were to (1) develop(More)
The brain blood vasculature consists of a highly ramified vessel network that is tailored to meet its physiological functions. How the brain vasculature is formed has long been fascinating biologists. Here we report that the developing vasculature in the zebrafish midbrain undergoes not only angiogenesis but also extensive vessel pruning, which is driven by(More)
In this paper an automatic and effective method was proposed for mass segmentation in mammography. Based on the facts that mass edges are continuous and closed curves consisted of points which have larger gradient transformation, a plane fitting method and a dynamic programming technique were applied. The regions of interest (ROIs) used in this study were(More)
Economic crisis is both a challenge and a chance for manufacturing enterprises of the Pearl River Delta facing the industrial upgrading. This article is a very good reference for enhancing competitive advantage which is on an empirical study of the relationship between corporate strategy, manufacturing flexibility and performance. This paper reviews(More)
The objective of this study was to evaluate the association betweenthe quantitative assessment of background parenchymal enhancement rate (BPER) and breast cancer. From 14,033 consecutive patients who underwent breast MRI in our center, we randomly selected 101 normal controls. Then, we selected 101 women with benign breast lesions and 101 women with breast(More)
Utilizing the model of the relationships among IT capability, strategic flexibility, non-financial performance and financial performance, we carry out an empirical research based on a sample of the manufacturing enterprises in Pearl River Delta. Then strategic flexibility is classified as proactive flexibility and reactive flexibility to conduct further(More)
The title compound, C(17)H(17)N(4) (+)·C(9)H(5)O(6) (-)·C(9)H(6)O(6)·H(2)O, contains a protonated 2,2'-(1,3-propanedi-yl)bis-(1H-benzimidazole) cation, a deprotonated benzene-1,3,5-tricarb-oxy-lic acid anion, a neutral benzene-1,3,5-tricarb-oxy-lic acid mol-ecule and a water mol-ecule, which are linked together through N-H⋯O, O-H⋯O and weak C-H⋯O hydrogen(More)
New venture, endogenous vigour of the country's economic development, has been the focus of the study researchers. However, new venture's mortality is much higher than old enterprises, one important reason of which is the lack of organizational legitimacy in Institutionalism's opinion. Legitimacy derives from the socialized institutional structure, and is(More)
With a descriptive and predictive ability, data mining (DM) can discover the hidden patterns of data from a large-scale data warehouse by precise mathematical means, which is surpportable for decision making. With a structural equation model(SEM) analysis, this paper examines an important issue concerned to corporate governance - ownership structure,(More)