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In this article, we apply the ARMA (n, n−1) model to the production system where there is some autocorrelation, and propose a new statistical control chart based on the model. The Monte Carlo Simulation is used to analyze the ability of the control chart. The results show that the ARMA (n, n−1) control chart significantly outperforms the ARMA (1, 1) one when the production process is stable; when facing unstable production process, ARMA (n, n−1) control chart can also have a good performance. Based on the results, we design the rules for choosing parameters and the procedure of constructing an ARMA (n, n−1) control chart.

This paper aims to disentangle how to play the brokerage roles of innovation networks in enhancing innovation performance. Based on extant studies on innovation networks, five dimensions of the brokerage problems are discussed and each of them is combined with a proposition.

In this paper, we examine the knowledge transfer process on community networks by analyzing the average knowledge level as a function of the agent's absorptive capacity. It is found that the average knowledge level decreases with the increment of inner-community links and the decreases of inter-community links when we keep the total links (including inner-community and inter-community links) constant. It is also shown that as for inner-community (inter-community) links unvaried, the increment of inter-community (inner-community) will promote average knowledge level.

Caofeidian sea area is an important ecoregion of Hebei province. It's meaningful to investigate the pollution situation of this area. Firstly, a numerical model of tidal flow and pollutant transport based on Delft3D-FLOW is established to simulate and analyze COD distribution in Caofeidian sea area. Then, the model is verified by measured data. Finally, the flow field and COD concentration in this area are analyzed, and general suggestion for control COD is presented.

This work proposes a basic equation of thermal radiation interaction between surface objects on the basis of the principle of heat balance in the interface. The solution of this equation takes account of the contribution of sensible heat flux and latent heat flux more completely, compared with traditional solution for surface cooling and heating processes. By the aid of the experimental data conducted in Xiaotangshan experimental site, Beijing, both the nonapplicability of Kirchoff's law and the measurability of surface emissivity in a nonisothermal system have been highlighted. Two methods called ventilation and time-delay compensations have been proposed to reduce the error induced by change of surface temperatures of nonisothermal objects during the measurement of emissivity.