期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
Principal Component Analysis and Cluster Analysis of Luffa Germplasm Resources in Zhejiang Province 被引量:1
1
作者 Chunmei FENG Jiaoyang WANG +1 位作者 yongbin zhao Weidong QU 《Agricultural Biotechnology》 CAS 2014年第5期15-20,共6页
In this study, 32 Luffa germplasm resources were collected from various regions in Zhejiang Province as experimental materials, to investigate 22 agronomic traits including fruit bearing habit, leaf margin, fruit ribb... In this study, 32 Luffa germplasm resources were collected from various regions in Zhejiang Province as experimental materials, to investigate 22 agronomic traits including fruit bearing habit, leaf margin, fruit ribbing and percentage of nodes with female flowers to total node. Based on the obtained experimental data, principal component analysis and cluster analysis were carried out using DPS software. The results showed that 22 agronomic traits could be integrated into 5 principal components, with the cumulative contributive percentage of 81. 308%. According to the correlations between the first five principal components and traits, 14 traits with great influences were screened. On the basis of principal component analysis, cluster analysis of 32 Luffa germplasm resources was conducted, which divided Luffa cylindrica and Luffa acutangula into two categories and six subcategories by Euclidean genetic distances. This study provided scientific basis for the collection, preservation, identification, creation and utilization of Luffa germplasm and parent selection in cross breeding of Luffa. 展开更多
关键词 LUFFA Agronomic traits Principal component analysis Cluster analysis
下载PDF
Design of Feedback Shift Register of Against Power Analysis Attack
2
作者 yongbin zhao XuYang RanranLi 《Computers, Materials & Continua》 SCIE EI 2019年第2期517-527,共11页
Stream ciphers based on linear feedback shift register(LFSR)are suitable for constrained environments,such as satellite communications,radio frequency identification devices tag,sensor networks and Internet of Things,... Stream ciphers based on linear feedback shift register(LFSR)are suitable for constrained environments,such as satellite communications,radio frequency identification devices tag,sensor networks and Internet of Things,due to its simple hardware structures,high speed encryption and lower power consumption.LFSR,as a cryptographic primitive,has been used to generate a maximum period sequence.Because the switching of the status bits is regular,the power consumption of the LFSR is correlated in a linear way.As a result,the power consumption characteristics of stream cipher based on LFSR are vulnerable to leaking initialization vectors under the power attacks.In this paper,a new design of LFSR against power attacks is proposed.The power consumption characteristics of LFSR can be masked by using an additional LFSR and confused by adding a new filter Boolean function and a flip-flop.The design method has been implemented easily by circuits in this new design in comparison with the others. 展开更多
关键词 Stream cipher feedback shift register power analysis Boolean function
下载PDF
Control Effect and Application Technology of Mandipropamid on Red Taro Blight
3
作者 Huifu WANG yongbin zhao +2 位作者 Weidong QU Hui FANG Huiqin ZHANG 《Asian Agricultural Research》 2017年第1期78-80,共3页
The field experiment results showed that 250 g/l mandipropamid suspension had good control effect on red taro blight,and the 1∶1500 suspension was applied twice continuously during the early period( June 25) and culm... The field experiment results showed that 250 g/l mandipropamid suspension had good control effect on red taro blight,and the 1∶1500 suspension was applied twice continuously during the early period( June 25) and culmination period( July 12) of taro blight; the control effect 23 d after the last application reached 79. 28%,significantly better than that of conventional pesticide,and it was safe,so it had good prospects for the development and application in production. 展开更多
关键词 250g/l mandipropamid suspension Red taro blight Control effect SAFETY
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部