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The unique features of cellulosic paper including flexibility, biodegradability, and low cost enables it as a versatile, sustainable biomaterial for promising applications. In the paper industry, microsized mineral particles are widely used in the production of printing/writing paper grades, while rosin derived from trees is the earliest internal sizing agent for paper hydrophobication. On the basis...
This paper describes an automatic test equipment for integrated circuits. Most traditional automatic test equipments focus on integrated circuits tests in conventional environments. They usually can not test integrated circuits in the extreme environments, such as thermal cycling, thermal vacuum, vibration and shock. Some can accomplish the tests in only one kind of extreme environment. We invent...
As an inherent constituent of ecotourism, environmental education is of great significance to the sustainable development of ecotourism. However, existing studies pay little attention on environmental education and the improvement of people's environmental awareness. Based on relevant literatures, this paper aims to construct an environmental education model for ecotourism. It engaged in the analytical...
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