Advanced Materials Research Vols. 756-759

Abstract: The-metric is an important class of Finsler metrics including Randers metric as the simplest class, and many people research the Randers metrics. In this paper, we study a new class of Finsler metrics in the form ,Whereis a Riemannian metric, is a 1-form. Bengling Li had introduced the projective flat of the-Metric F. We find another method which is about flag curvature to prove the projective flat conditions of this kind of-metric.

Abstract: Routing Optimization is always a key issue in MANET (Mobile Ad-Hoc Network). When referring to multi-media communication, the routing stability, which is up to link stability, is in urgent need. On the analysis of kinds of factors that affect link stability greatly, a multi-dimensional comprehensive evaluation model (MVCLS) was presented based on factor classification. In the model, the weight levels were classified, a mechanism of weight rotation was available, and a normalized link stability evaluation system with multi-attribute and multi-weight was formed. In addition, aiming at reliability and robust of the model, time series analysis and Kalman filter were combined to smooth and predict the value of key factors. At last, the link stability model is used to optimize the OLSR routing protocol, which takes the link stability as the important stuff for path selection. Simulation experiments of modified OLSR were done with support of Qualnet, the results of which show that the network performance is improved and also prove the effectiveness of the link stability model.

Abstract: As the basis of outsourcing goodwill, self-created goodwill has a great impact on goodwill accounting. With the development of knowledge economy, the proportion of self-created goodwill is increasing in enterprise assets. This article tries to state briefly the origin, the existing problems and the causes of these problems of self-created goodwill and conduct a feasibility analysis of the confirmation of self-created goodwill through a profound analysis of the composition of it. Thus we will find out the approach to the confirmation of self-created goodwill, providing some valuable inspiration in the accounting circle of our country while dealing with goodwill accounting.

Abstract: With the development of information technology, the network information security is closely linked with national security. In order to resist the harmful information to safeguard national security, Australian government enforces network security plan. Its network of legal norms and such practices as real-name system, national information security have a certain degree of enlightenment to China.

Abstract: Classification of imbalanced data sets is widely used in many real life applications. Most state-of-the-art classification methods which assume the data sets are relatively balanced lose their efficiency. The paper discusses the factors which influence the modeling of a capable classifier in identifying rare events, especially for the factor of sample size. Carefully designed experiments using Rotation Forest as base classifier, carried on 3 datasets from UCI Machine Learning Repository based on weak show that, in particular imbalance ratio, increases the size of training set by unsupervised resample the large error rate caused by the imbalanced class distribution decreases. The common classification algorithm can reach good effect.

Abstract: In this research we study the demand characteristics and service sensitivity of solar energy water heater products in the whole life cycle, establish the maximum profit model of multi-level inventory system. Adopt the maximum profit model checking the enterprise actual research instance, analysis the relationship of the customer mean demand changes between the optimal service level or the maximum profit, the results show that the maximum profit model can reflect the relationship of the customer mean demand changes between the maximum profit.

Abstract: Aimed at the actual demand of current evaluation job for undergraduates, based on fuzzy set theory, a new thought to make comprehensive evaluation about undergraduates was raised by combining with Agent technology and artificial intelligence expert system technology in this paper. The mathematical model for evaluation was established via weighted fuzzy evaluation method and weighted fuzzy inference method based on reliability and realized by adopting Java language under Web environment, to gain professional conclusions and suggestions for undergraduate comprehensive evaluation.

Abstract: By an analysis of symmetric features of equivalent mappings of the frieze group, a definition of their generalized Mandelbrot sets is given and a novel method for constructing generalized Mandelbrot sets of equivalent mappings of frieze group is presented via utilizing the Ljapunov exponent as the judgment standard. Based on generating parameter space of dynamical system, lots of patterns of generalized Mandelbrot sets are produced.

Abstract: By analyzing the spiral wooden staircase handrail elbow, a design scheme of its CNC machining equipment was established. The mathematics description equations for the space outline curve centerline of spiral wooden staircase handrail elbow were set up, and then the UG software was used for simulation verification. Simulation results show that the mathematics description equations has good versatility and practicality, which lay a theoretical foundation for the integrated CAD/CAM CNC machining method research on the spiral wooden staircase handrail elbow.

Abstract: This teaching design is to get students familiar with a new genre--- memoir, and learn to write a memoir. Students will be able to identify the characteristics of a memoir, analyze the structure of a memoir, finish the joint construction of a memoir and construct a memoir independently.