雨爱 - 杨丞琳

随着中国电厂侧信息技术应用的不断深化，发电企业对信息系统和网络的依赖程度越来越高，信息安全的重要性显得愈加重要，这也对电厂侧的信息安全和信息专业人员提出了更高的要求。本文对电厂信息系统存在的安全风险和对策进行了分析，旨在为电厂从事信息工作的人员提供参考。

In this article, we introduce a new family of sense preserving harmonic mappings f in the open unit disk and prove that functions in this family are close-to-convex. We give some basic properties such as coefficient bounds, growth estimates, convolution and determine the radius of convexity for the functions belonging to this family. In addition, we construct certain harmonic univalent polynomials belonging to this family.