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Using decision tree algorithm C4.5 to establish a classification rule and an analysis-forecasting model for students’marks. Describing how the analysis-forecasting result can be used to find out the factors which can affect students’ marks, so some negative learning habits or behaviors of students can be revealed and corrected in time. And(More)
OBJECTIVE Avascular necrosis of femoral head and nonunion is a major complication after the treatment of displaced femoral neck fracture in young adults. The purpose of this study was to introduce a new technique using biodegradable magnesium screws and vascularised iliac grafting for displaced femoral neck fracture in young adults. METHODS Totally 19(More)
The use of molecular target therapy has not been established for endometrial cancer. The present study investigated the potential therapeutic strategy of targeting CD117-positive cancer cells as a novel molecular target therapy. FACS-sorted CD117(+) cells isolated from endometrial cancer cell lines (Ishikawa or MFE280 cells) exhibited higher proliferative(More)
Abstract—As an important image feature, a corner takes significant position in camera calibration, pattern recognition and image matching area. A large amount of image corner points are the intersecting points of the edges of polygons. A corner point extracting method based on support vector for regression(SVR) was proposed aimed at extracting(More)
The improper environmental investment decision-making and its low operating efficiency not only waste investment capital but also affect the effectiveness of environmental treatment, still further, to some extent affect the sustainable competitiveness and development of enterprises. Based on multi-attribute decision making theory and through building a(More)
Through constructing credit evaluation indicator system of listed companies, the paper uses the methods of factor analysis, expert scoring as well as triangular fuzzy number to calculate the weight of every factor which are dealt with dimensionless treatment and the total order of the indicators, thereby obtains comprehensive credit evaluation scores of(More)
Transnational corporations (TNCs) which operate without borders cause the host country serious negative impacts such as environment and resources, and thus lead the government and its agents to set environmental barriers to restrict the conduct of TNCs. Green marketing efficiency of TNCs is the introduction of green into the business activities of TNCs.(More)
The high-frequency and low-frequency effects on vibrational resonance (VR) in a synthetic gene network are studied. Results show that the role of the high-frequency signal in VR acts as that of noise in stochastic resonance (SR), namely a high-frequency signal can change the effective value of the control parameter such that the random state-state(More)
Solving space angles between two lines, two planes, or one line and one plane in engineering drawing is of great significance for machining oblique holes, designing fixtures on inclined planes, or manufacturing process design. A simple and accurate method based on Line-to-Cone Rotation is proposed to solve space angles. The principle of Line-to-Cone(More)