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Copyright of Bulletin of the Chinese Ceramic Society is the property of Bulletin of the Chinese Ceramic Society Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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To evaluate the safety of navigation flight task scheduling schemes in forest fire rescue, safety evaluation indicators for navigation rescue task scheduling schemes were proposed by detecting the flight path conflicts of various general aircraft. Using an airspace grid model to model the rescue flight environment, and planning the rescue flight paths of aircraft with different performance constraints based on their respective task scheduling schemes, and conducting trajectory conflict detection to evaluate the safety of the task scheduling scheme. The simulation results show that this method has a 53. 8% improvement in time efficiency compared to the direct conflict detection algorithm, and a 6. 7% improvement in accuracy compared to the efficient spatiotemporal synchronous route conflict detection method. It can be seen that this method can efficiently and accurately predict track conflicts in rescue flights and evaluate the safety of task scheduling schemes, providing effective decision support for navigation rescue command and scheduling work. [ABSTRACT FROM AUTHOR]

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Copyright of Engineering Science Research & Application is the property of Omniscient Pte. Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

甘油二酯（DAG）是甘油三酯中一个脂肪酸被羟基取代形成的酯，是膳食油脂中的天然成分之一。旨在为DAG油作为降脂减重功能性油脂的应用提供理论参考，介绍了DAG的降血脂及控制体质量功效，并综述了其作用机制。DAG因其自身的特异性结构而具有与TAG不同的消化特性，且DAG可以上调小肠中脂肪氧化、产热基因的表达，上调肝脏中β-氧化相关基因表达，抑制脂质转运和增强血浆脂质清除作用。综上，基于DAG本身结构的特异性消化代谢途径以及DAG摄入后对脂质代谢相关基因的调控，DAG可有效降低餐后血脂水平并减少体内脂肪积累，达到控制体质量的效果，改善或预防肥胖的发生。Diacylglycerol (DAG) is an ester formed by the substitution of a fatty acid by a hydroxyl group in triglycerides, and it is one of the natural components of dietary fats and oils. In order to provide a theoretical reference for the application of DAG oil as a functional blood lipid-lowering and weight-reducing oil, the blood lipid reduction and body weight control efficacy of DAG were introduced, and the mechanism of action was reviewed. DAG has different digestive properties from TAG due to its own specific structure, and DAG can up-regulate the expression of fat oxidation and thermogenesis genes in the small intestine, the expression of genes related to β-oxidation in the liver, inhibit lipid transport and enhance plasma lipid clearance. In conclusion, based on the specific digestive and metabolic pathways of DAG and the regulation of lipid metabolism-related genes after DAG intake, DAG can effectively reduce the postprandial lipid level and the accumulation of body fat to achieve the effect of controlling body weight and improving or preventing the occurrence of obesity.