To improve the classification method of body type, 103 young female college students in Jiaodong area(Shandong, China) were measured by a 3 D body scanning system, and variables of upper body parts were selected and a...To improve the classification method of body type, 103 young female college students in Jiaodong area(Shandong, China) were measured by a 3 D body scanning system, and variables of upper body parts were selected and analyzed by SPSS software. According to the indices such as the chest ratio, the chest sagittal diameter ratio, and the shoulder angle, the tested population was quickly clustered into six categories by the classification method of “size feature+shape index+front and back indices”, which were divided into flat chest body, graceful body, breast augmentation body, normal body, convex back body, and flat body. The proportion of various body types and classification rules were obtained. According to the classification rules, 103 samples and 15 new females’ body data were analyzed and verified. Finally, according to the descriptive statistical analysis of upper body-related indicators of young female in this area, the height and the chest circumference were selected as independent variables, regression analysis was carried out on 11 related indicators, and the mapping relationship between height and chest circumference was studied, which provided a mathematical model for the design of fit clothing structure of young females in Jiaodong area.展开更多
采用原位水热法,将WO_(3)纳米棒负载在层状的g-C_(3)N_(4)上制备具有高吸附性和光催化活性的Z型g-C_(3)N_(4)/WO_(3)复合光催化剂。通过XRD、XPS和SEM对复合材料的形貌和结构进行了表征,并测试其光致发光光谱、光电流和紫外可见漫反射光...采用原位水热法,将WO_(3)纳米棒负载在层状的g-C_(3)N_(4)上制备具有高吸附性和光催化活性的Z型g-C_(3)N_(4)/WO_(3)复合光催化剂。通过XRD、XPS和SEM对复合材料的形貌和结构进行了表征,并测试其光致发光光谱、光电流和紫外可见漫反射光谱;考察了在可见光下g-C_(3)N_(4)/WO_(3)复合材料对土霉素的降解效果及复合材料的可重复利用性能,并结合自由基淬灭实验初步推测了g-C_(3)N_(4)/WO_(3)的光催化机理。结果表明,WO_(3)纳米棒负载到g-C_(3)N_(4)纳米片上并形成异质结;g-C_(3)N_(4)/WO_(3)异质结增强了可见光响应且降低了光生载流子复合率;添加0.6 g g-C_(3)N_(4)的g-C_(3)N_(4)/WO_(3)复合光催化剂具有最佳的光催化活性,在可见光照射下120 min对土霉素的降解率达到86%,优于单组分的g-C_(3)N_(4)和WO_(3),且稳定性较好;在g-C_(3)N_(4)/WO_(3)降解土霉素过程中,空穴(h+)为主要活性物质。展开更多
文摘To improve the classification method of body type, 103 young female college students in Jiaodong area(Shandong, China) were measured by a 3 D body scanning system, and variables of upper body parts were selected and analyzed by SPSS software. According to the indices such as the chest ratio, the chest sagittal diameter ratio, and the shoulder angle, the tested population was quickly clustered into six categories by the classification method of “size feature+shape index+front and back indices”, which were divided into flat chest body, graceful body, breast augmentation body, normal body, convex back body, and flat body. The proportion of various body types and classification rules were obtained. According to the classification rules, 103 samples and 15 new females’ body data were analyzed and verified. Finally, according to the descriptive statistical analysis of upper body-related indicators of young female in this area, the height and the chest circumference were selected as independent variables, regression analysis was carried out on 11 related indicators, and the mapping relationship between height and chest circumference was studied, which provided a mathematical model for the design of fit clothing structure of young females in Jiaodong area.
文摘采用原位水热法,将WO_(3)纳米棒负载在层状的g-C_(3)N_(4)上制备具有高吸附性和光催化活性的Z型g-C_(3)N_(4)/WO_(3)复合光催化剂。通过XRD、XPS和SEM对复合材料的形貌和结构进行了表征,并测试其光致发光光谱、光电流和紫外可见漫反射光谱;考察了在可见光下g-C_(3)N_(4)/WO_(3)复合材料对土霉素的降解效果及复合材料的可重复利用性能,并结合自由基淬灭实验初步推测了g-C_(3)N_(4)/WO_(3)的光催化机理。结果表明,WO_(3)纳米棒负载到g-C_(3)N_(4)纳米片上并形成异质结;g-C_(3)N_(4)/WO_(3)异质结增强了可见光响应且降低了光生载流子复合率;添加0.6 g g-C_(3)N_(4)的g-C_(3)N_(4)/WO_(3)复合光催化剂具有最佳的光催化活性,在可见光照射下120 min对土霉素的降解率达到86%,优于单组分的g-C_(3)N_(4)和WO_(3),且稳定性较好;在g-C_(3)N_(4)/WO_(3)降解土霉素过程中,空穴(h+)为主要活性物质。
