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The cold roll bonding process of a laminar metal composite consists of three steps, i.e., surface treatment, cold roll bonding, and heat treatment. The surface pretreatment is the precondition of obtaining a metal composite with a superior bonding level. The influence of the steel plate surface condition on the bonding strength is studied, based on the bonding mechanism of a laminar metal composite by cold roll bonding. Flap disc grinding is a better surface treatment than wire brushing for obtaining high bonding strength. Within a certain range, the larger the surface roughness, the higher the bonding strength. Comparing different grinding textures, viz longitudinal, transverse, and 45°with respect to the rolling direction, it was revealed that the longitudinal surface texture was more advantageous for bonding.

Jasmonic acid (JA) plays a crucial role in various biological processes including development, signal transduction and stress response. Allene oxide synthase (AOS) catalyzing (13S)-hydroperoxyoctadecatrienoic acid (13-HPOT) to an unstable allene oxide is involved in the first step of JA biosynthesis. Here, we isolated the PtAOS1 gene and its promoter from trifoliate orange (Poncirus trifoliata). PtAOS1 contains a putative chloroplast targeting sequence in N-terminal and shows relative to pistachio (Pistacia vera) AOS. A number of stress-, light- and hormone-related cis-elements were found in the PtAOS1 promoter which may be responsible for the up-regulation of PtAOS1 under drought and JA treatments. Transient expression in tobacco (Nicotiana benthamiana) demonstrated that the P−532 (−532 to +1) fragment conferring drive activity was a core region in the PtAOS1 promoter. Using yeast one-hybrid, three novel proteins, PtDUF886, PtDUF1685 and PtRAP2.4, binding to P−532 were identified. The dual luciferase assay in tobacco illustrated that all three transcription factors could enhance PtAOS1 promoter activity. Genes PtDUF1685 and PtRAP2.4 shared an expression pattern which was induced significantly by drought stress. These findings should be available evidence for trifoliate orange responding to drought through JA modulation.

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To probe into consumer behavior from the perspective of cognition and emotion, meanwhile offering objective and quantitative physiological evidence for advertisers, e-commerce platforms selling experiential products, and other e-commerce platforms for holiday promotional activities. This paper adopted a combination of multi-channel physiometer and questionnaire survey, in which a total of 42 subjects including 18 men and 24 women is selected and recruited. (1) Factors such as promotion, music background, and model backdrop help to enhance the festive atmosphere of e-commerce platforms and stimulate positive emotions of consumers; (2) Greeting cards can stimulate positive emotions among female consumers, but they are not statistically significant in stimulating male consumers; (3) The effect of warm and cold colors on the sympathetic nerves of consumers is significant, among which warm colors can significantly ignite the positive emotions; and (4) Although not all indicators of multi-channel physiometer are consistent with questionnaire data, the differences can be explained, so it proves to be a sound method to quantitatively measure emotions. This paper conducted multi-channel physiometer research on E-commerce platform promotions and consumer behaviors from the perspective of cognition and emotion, which provided an objective quantitative method for online retailers and marketers.