红外预热处理对压榨紫苏籽油品质及抗氧化活性的影响

采用不同温度、时间红外预热处理紫苏籽,探讨其对压榨紫苏籽油品质(包括理化指标、脂肪酸组成、褐变程度、活性成分含量)、抗氧化活性及氧化稳定性的影响。结果表明:经红外预热处理制备的紫苏籽油理化指标、脂肪酸组成均符合LS/T 3254—2017《紫苏籽油》要求,脂肪酸组成与未经红外预热处理的无显著差异,且180℃红外预热处理30 min能够显著提高紫苏籽油多酚和黄酮含量、抗氧化活性及氧化稳定性(P<0.05)。此外,相关性分析表明紫苏籽油褐变程度、多酚含量、黄酮含量与抗氧化活性、氧化稳定性呈极显著或显著正相关(P<0.01,P<0.05)。180℃、30 min适宜作为紫苏籽红外预热处理条件,研究结果为紫苏籽油的制备提供了参考依据。

TPT热压预热设备的改造

太阳能电池背板也称为太阳能电池背板膜、光伏背板等。本文主要介绍通过加热源将材料预热到160℃~360℃的温度,在此使用的加热源包括但不限于辊筒加热、红外预热、火焰加热、电子束和激光等[2]。公司现有设备采用压送辊热压,红外灯或辊筒预热只需很少投入就能改造成满足TPT热压条件的生产设备。

贯穿式汽车尾灯设计与应用

该文总结汽车贯穿式汽车尾灯在设计开发过程中需要综合考量的几大维度的问题。通过机械性能、热性能和物理性能进行综合比对选择材料;通过红外预热摩擦焊的工艺进行焊接;贯穿灯的产品插拔力、人机工程校核进行CAE校核;最佳注塑工艺的注射、保压压力和时间展开DOE因子解析;光泽色差反光率对比锁定最佳外观效果材料。

New Progress in the Application of Satellite Thermal Infrared Imagery to Earthquake Prediction

The concept of stochastic resonance (SR) has been introduced into the analysis of satellite thermal infrared images. Six kinds of anomalous phenomena related to crustal movement were recognized in satellite thermal infrared images. Six diagnostic indicators for the prediction of global earthquakes with magnitude ≥6.0 and their quantitative evaluation standards have been established. The microscopic behavior of global crustal movement is successfully controlled by using satellite thermal infrared imagery, and the occurrence time and magnitude of over 80% of global strong earthquakes occurred since the foundation of the observation station have been successfully predicted. It is believed that the combination of satellite thermal infrared information with macroscopic anomalous phenomena will play an important role in earthquake hazard reduction.