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)
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)
The development of Internet generated the wave of E-Commerce, which can lead an expansion of IT industry. This paper focuses on the relationship between of ownership motivation and corporate performance in IT companies because the showing of low occupational stability of managers in IT industry. With an empirical research through all 99 IT companies from(More)
Data mining, with its descriptive and predictive ability, can discover the hidden patterns of data from a large-scale data warehouse by precise mathematical means, which is helpful for decision making. With a panel data analysis, this paper examines the relation between managerial ownership and firm performance. Based on a sample of 75 public companies in(More)