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Three-dimensional mesh fabric has been successfully installed in ventilated car seats due to its excellent cushioning and ventilating properties originating from a sandwich monofilament architecture. In this paper, a detailed structural analysis is presented of a 10.3 mm thick three-dimensional mesh fabric to better understand the structural features and mechanical behavior. A continuous monofilament architecture was reconstructed by using a filament centerline tracing technique and micro X-ray computed tomography data. The curvature, torsion, and length of a unit cell extracted from the monofilament architecture were calculated. Inflection points from the curvature and torsion curves were used to divide the continuous monofilament architecture into separate monofilament loops and spacer monofilaments. The monofilament loops are found to have similar maximum curvatures at their intermediate points between 1.5 and 1.8 mm−1, but the spacer monofilaments have discrepant maximum curvatures close to the ends between 0.3 and 0.75 mm−1. The monofilament loops are sinusoidally arranged with a sinusoidal torsion distribution at their ends ranging from 0.2 and 0.9 mm−1 due to the stretching and heat setting process. Spacer monofilament torsions vary nonlinearly from negative to positive and the maximum torsions are between 0.45 and 0.9 mm−1. The monofilament loops have a length of 3.07–3.90 mm, while the spacer monofilaments have a length of 10.94–12.54 mm. Spacer monofilaments within the unit cell differ in curvature, torsion, and length, so their contributions to fabric compression resistance should be different.

Intensive agriculture has caused unintended environmental consequences, such as water quality degradation. It is necessary for policymakers to make proper planning of sustainable agricultural development. Using a "Pressure-State-Response (PSR)" framework, we conducted surveys focused on farmer behavior toward agriculture and environmental protection in 2009 and 2011. The surveys indicated that farmer behavior was complex and contradictory, and caused some environmental effects. Therefore, we used normative landscape scenario method to develop two scenarios. Both scenarios emphasized on stable economic growth along with water quality improvement and presented good effects. A feedback survey was organized in 2013 to interpret farmer perceptions of the alternative scenarios. The results indicate scenario I is likely to be accepted by farmers; however, the beautiful rural landscape in scenario II represents what farmers want, and scenario I or II can be achieved by changing farm behavior in the future. By logistic regression model analysis, increasing agriculture benefits and new technology popularization were key factors affecting farmer behavior. Relevant policy implications on farmers were proposed. This paper showed how important to understand farmer behavior and perceptions to agricultural development, and a description of the alternative scenarios and policy implications are meaningful for policymakers to manage nature resources.

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