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A fishing model is presented in this paper. A year is divided into four seasons on the basis of the Penna model. We define the rules of death, reproduction, fishing and so on for fish. And "closed fishing" in China is introduced in this model. Then we discuss the population size of fish and the fishing products in the case of "closed fishing" or not. At last the conclusion is obtained that the policy will be significant if fishing intensity is in a certain range. And reducing fishing intensity is essential policy, and "closed fishing" is just an accessorial policy. [ABSTRACT FROM AUTHOR]

The quality of Chinese medical herbs depends on their geographical origins. Combining support vector machine (SVM) with Fourier transform infrared (FTIR) spectroscopy is a fast, accurate and nondestructive technique to classify the herbal origins. It is time consuming to tune the key parameters of SVM elaborately. However, a special leave-one-out (LOO) error bound of generalization ability (i.e., the ratio of the number of support vectors to the number of training vectors) can be estimated through training binary SVM once. In this paper, averaging all LOO error bounds over binary SVM classifiers is defined as the LOO error bound for multiclass problem according to one-against-other technique. Using this error bound and grid search, we can estimate the regularization and kernel parameters in SVM efficiently. In our experiments, 269 spectral curves of Dahurian Angelica Root (Baizhi in Chinese) from four provinces in China are examined in detail using polynomial and RBF kernels. On eight testing subsets, the average error rate is 3.53%. For four geographical origins, the highest error rate 6.07% is obtained using Zhejiang's herb. These results demonstrate that for classifying the herbal origins our proposed method can effectively tune SVM parameters and achieve high classification accuracy simultaneously. [ABSTRACT FROM AUTHOR]

Real-time communication platforms such as ICQ, MSN and online chat rooms are popular today over the Internet. The language used on these platforms differs significantly from standard natural language. Comparatively, this language, referred to as chat language, is informal, anomalous and dynamic. In this paper, the NIL corpus — a Chinese chat language text collection — is presented which is constructed to facilitate language study. Also, linguistic characteristics and ecological behaviour of the language are studied. We show that chat language is anomalous and dynamic in nature leading to the out-of-vocabulary, ambiguity and sparse data problems. To tackle these problems, a novel chat language model is proposed. The model is based on phonetic mapping between chat terms and their standard natural language counterparts. [ABSTRACT FROM AUTHOR]

Tourism is the major industry in the Huangshan city. This paper examines time series of tourism to Huangshan from 1979 to 2004. The yearly data set comprises the total arrivals of tourists and total income. A mathematical model which is based on the polynomial approximation and radial basis function is set up to model the tourist flow. The total income and expenditure per tourist are also modeled. The established mathematical models can be used to forecast the tourist flow so that proper planning and management can be arranged. [ABSTRACT FROM AUTHOR]

This paper presents the preliminary results of a modeling study on regional air pollutants transport over the Pearl River Delta (PRD) region of China in fall season (Nov. 2002) on the basis of compiled emission inventories. The advanced regional chemical transport model, STEM-2K1, driven by meso-scale meteorological model MM5, was employed with a nesting technique. Three weather patterns were found in the fall season. Numerical sensitive study indicated that external influence on air quality in PRD was significant and dependent on the transport pattern determined by weather situations. [ABSTRACT FROM AUTHOR]

In this paper, we report solar neutron events detected in the solar cycle 23, especially three interesting events detected on November 23rd and 28th 1998 in Tibet and October 28th 2003 in Tsumeb. [ABSTRACT FROM AUTHOR]

Emphasizes on the initiation of the First Cross Taiwan-strait Conference on Statistical Physics organized by mainland China physicists. Participants of the conference; Composition of the scientific program of the conference; Highlights of the opening and closing session of the conference; Inclusions of the relevant papers not included in the proceedings.

In this paper, we apply IAAFT to generate surrogate time series of measured multivariate time series. A quantitative method to detect nonlinearity in multivariate time series is proposed using the generalized redundancy and linear redundancy as the significance test statistic. The null hypothesis of a multivariate linear Gaussian random process is tested using the multivariate surrogate data. The validity of this method is demonstrated using two types models (linear and nonlinear) and applied to Shanghai stock market. [ABSTRACT FROM AUTHOR]

The article presents information on editorial board meeting of International Journal of Structural, Stability and Dynamics (IJSSD) in Majestic Harbor Plaza Hong Kong Hotel on 17 December 2009 in Hong Kong, China. Topics include the enhancement of impact factor and best paper award. The symposium featured several editorial board members of IJSSD including S. L. Chan, X. L. Zhao and D. A. Nethercot.

Discusses the outcome of the Fifth International Conference on New Theories, Discoveries and Applications of Superconductivity and Related Materials, held during the period of June 11 to 16, 2004, in Chongqing, China. Organizers and sponsors; Participants; Papers presented; Demonstrations.

Focuses on the collection of research papers on numerical acoustics during the International Congress of Theoretical and Computational Acoustics in Beijing, China. Discussion of the problems of contemporary research; Assessment of the accuracy problems of the boundary-element collocation method; Description of the appearance of viscoelastic material.

Reviews the 8th IUMRS International Conference on Electronic Materials that was held in Xi'an, China. Number of different countries represented at the conference, which focuses on Silicon-based Heterostructure Materials; Number of papers introduced at the conference focusing on the preparations, characterizations and applications of silicon-based heterostructure materials, such as GeSi films, wide band semiconductors, and nano-structure semiconductors.