论元人冯子振、释明本《梅花百咏》唱和的多重影响

元人冯子振、释明本的《梅花百咏》唱和是酬唱诗学的典型事件和重要文本,产生了多重影响:确立了后世《梅花百咏》基本体制,推动了《梅花百咏》组诗创作的繁荣,甚至催生出以《梅花百咏》试才的现象;《梅花百咏》的同题共作为方内与方外、湖湘与两浙、布衣与士大夫等不同阶层诗人的交流提供了媒介和桥梁;冯子振、释明本《梅花百咏》及其拟作跨越了艺术门类和国界限制,与书法、绘画甚至碑刻艺术产生了交互,在日本汉诗圈中亦有一定反响。

Simplified Reflection Models of Representative Ground Metal Target in Millimeter Wave Passive Surveillance

For designing camouflage of ground metal target against millimeter wave(MMW) passive detections,based on the radiation and reflection theories related to MMW passive detection and an assumption of high frequency approximation,simplified models of two kinds of ground metal targets are established.Analysis indicates that the reflection from ground is the leading factor on a ground metal target's radiant temperature.In an 8-mm imaging experiment,the uneven distribution of radiant temperatures in horizontal and vertical metal plates is directly perceived.In a radiometer experiment,two positions of a radiometer device are utilized to obtain the radiant temperatures of a horizontal metal in two different grounds(made of asphalt and metal net respectively),which are 295.41 K and 301.55 K,respectively.The experimental results are close to the analytical results calculated from the proposed simplified models,which are 306 K and 296 K,respectively.According to the simplified models,different parts of a vertical plate receive incident MMW of different angles from the asphalt background.The radiant temperature of a vertical metal plate obtained from a radiometer experiment at night is 307 K,and it is in coherent with 304.22 K,the result from calculation using the simplified model of vertical plate.Both the analytic results and the experimental results agree with the uneven distribution of radiant temperature.

南宋咏梅诗人张道洽佚作辑补

南宋诗人张道洽一生创作咏梅诗三百余首,然《全宋诗》中所存仅九十六首,不及总数三分之一。今据明人王思义所编《香雪林集》辑补出五绝六首、七律二十五首、七绝三十首,共计六十一首。这些诗歌或直接署名“张道洽”,或署“张泽民”“实斋”,其中一部分还可在他人诗文中找到旁证,当为张道洽之作无疑。此外,《(崇祯)开化县志》中还存有一篇署名“张道洽”的《梅花诗序》,文中所述之事与张道洽生平行迹相合,部分文句与《瀛奎律髓》《宋百家诗存》摘引者相同,亦当为张道洽之作。