Surface Morphology and Its Sound Deadening Effect of Strix Uralensis Feathers

作     者：Zhou Changhai Tian Ximei Li Xiujuan Ren Luquan Key Laboratory of Terrain-Machine Bionics Engineering Jilin University(Ministry of Education) Changchun 130022 P.R.China 

会议名称：《The International Conference of Bionic Engineering(ICBE’06)》

会议日期：2006年

学科分类：08[工学] 09[农学] 0901[农学-作物学] 0836[工学-生物工程] 090102[农学-作物遗传育种] 

基　　金：the National Key Grant Program of Basic Research Development (Grant No.2002CCA01200) 

关 键 词：Strix uralensis feather morphology sound deadening 

摘      要：正The surface morphology of Strix uralensis feathers was studied using pickup stereo microscope and electronic scanning *** reveal that the macroscopic and microscopic structures of Strix uralensis feathers are different from those of diurnal birds,such as messenger pigeons.A Strix uralensis feather is featured by fully developed knot-like barbules and many half-baked *** addition to the common theory that the sound deadening effect of strigiform bird feather during fly is attributed to the serration structure of primary remiges,we believe that the fluffiness of strigiform feathers,the highly developed knot-like barbules,and the presence of plentiful undeveloped webs also contribute to the sound deadening effect.