目前在三系杂交稻中85％以上的不育细胞质是野生稻细胞质，单一细胞质源的大面积应用不仅制约着杂交稻单产的进一步提高，而且有可能导致对单一细胞质敏感病害的大流行。细胞质利用的多源化是解决这一问题的关键之一。我们以杂交籼稻常用的5种细胞质的不育系与相应的保持系交叉配组，配制20个二元不育系，然后与9311、抗65、特青3个恢复系配组，配制了60个三交F_1，并用6个不同类型的不育系与不同细胞质的同质恢复
Elliptic curve cryptography has been used in many security systems due to its small key size and high security compared with other cryptosystems. In many well-k
以海域使用现状调查省级成果数据为基础,通过对海岛周边海域使用现状分析,阐述我国海岛周边海域空间资源开发与利用状况,及开发过程中出现的诸如海岛消失、生态环境恶化、海
Attribute-based encryption (ABE) has been a preferred encryption technology to solve the problems of data protection and access control, especially when the clo
“杂家”向有两种涵义,一为编辑,二为杂文家,二者皆以“杂”字为其特色。而现在报界同仁爱弄杂文者亦颇多,于是“杂”上加“杂”,愈加其杂矣。“杂”字,很难说其有什么不好
A refractive index sensor based on Fano resonances in metal-insulator-metal (MIM) waveguides coupled with rectangular and dual side rings resonators is proposed
株高是株型构成的重要因子，不仅影响作物的抗倒伏性，也影响最终产量潜力。“绿色革命基因”sd1的成功应用带来了水稻产量的大幅提升，然而sd1在育种上的一枝独秀使得半矮秆遗传种
Crowd counting has been applied to a variety of applications such as video surveillance, traffic monitoring, assembly control, and other public safety applicati
从五种中草药植物材料中分离筛选人参黑斑病生防用拮抗细菌,结果共分离到了82株内生细菌菌株,其中55株为内生拮抗细菌,通过复筛5株拮抗细菌对人参黑斑病菌抑菌效果较强,其抑菌率均达到了50%以上,其中在人参根中筛选得到的BJ33菌株对人参黑斑病菌的抑菌率最高,达到了80%以上。根据16S rDNA序列同源性及系统发育分析,结合菌株形态学、培养特征及生理生化特性,初步将菌株BJ33鉴定为解淀粉芽孢杆菌(
Execution control is a critical task of robot architectures which has a deep impact on the quality of the final system. In this study, we describe a general met