Under the requirement of energy savings and emission reduction in China, building energy consumption, which occupies a rising proportion of the total energy consumption in society, has become the focus of energy conservation research. Public buildings with a high-energy consumption level have become the most important part of energy conservation research. It is of great practical significance and social value to study energy conservation in large public buildings. In this paper, a large office building is taken as an example. First, a simulation model is constructed by using the energy consumption simulation analysis method, and the reliability of the model is verified by a comparison with the actual energy consumption. Second, based on the model, the thermal design parameters of six building envelope structures, including the external wall heat transfer coefficient, are analyzed in the order of energy-saving sensitivity. Based on the results of the sensitivity analysis, suggestions for each factor are presented. Finally, considering the mutual influence of each parameter on the building energy consumption, the orthogonal design method is used to arrange the test, and the optimal scheme combination of the energy-saving effect is analyzed, which can provide decision support for the energy saving of public building envelopes.

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This paper considers the utility of each player consisting of two parts: the objective utility and subjective utilities. We assume that a player obtains its objective utility from the interactions with its neighbors in the spatial population. Besides, the subjective utility, which is largely ignored by previous studies, is determined by its attitudes. Here, we focus on how attitudes affect the evolution of cooperation on two different complex networks, the namely square lattice and Barabási–Albert scale-free network. First, the simulations indicate that populations with a higher average attitude can achieve a higher level of cooperation. Furthermore, a positive average attitude is conducive to promoting cooperation, while a negative average attitude leads to a decline in cooperation. Moreover, in populations with a positive average attitude, as the attitude heterogeneity increases, the average level of cooperation decreases. Conversely, in populations with a negative average attitude, increased attitude heterogeneity induces the promotion of cooperation.