This study aims to identify the factors on the cord-blood donation of Korean post-partum women, who may store, donate, or discard their infant's cord blood. This descriptive research assesses the level of knowledge and attitude of post-partum women in Korea, regarding cord blood and its usage. The participants in this study were 320 post-partum women of which 109 stored, 34 donated, and 177 discarded their cord blood. The knowledge level of women who donated or stored their cord blood was higher than that of those who discarded. The attitude level of the women who donated was higher than that of those who stored or discarded. Knowledge, attitude, income, and source of information were the factors on the cord-blood donation; high knowledge, high attitude, low income, and information source from mass media contributes to cord-blood donation. In order to promote the cord-blood donation, it is necessary to develop guidelines for cord-blood education to improve the knowledge and attitudes of child-bearing women and healthcare professionals.

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Recent mobile handhelds, e.g., Smart-phone, can be charged wirelessly using the traditional wireless communication technologies. In particular, Bluetooth with a charging circuit enables a short-range wireless charging of a mobile handheld. This paper presents an overview of power charging structures and proposes a new charging circuit based on schottky diode with a real commercial film-type antenna on mobile terminal. Our new circuit improves the charging efficiency approximately by 160%.

Smart grid is a modernized electrical grid that uses information and communication technologies to gather and act on information, such as information about the behaviors of suppliers and consumers, in an automated fashion to improve the efficiency, reliability, economics, and sustainability of the production and distribution of electricity. However, with the advent of cyber crime, there are also concerns on the security of the infrastructure, primarily that involving communications technologies. In this work, we make an in-depth investigation on the issue of security services and network loads on Smart grid. Through simulation, we analyze the relations between security services and network loads. The experimental results of this study will contribute toward designing an advanced Smart grid system that offers better quality of services. Also, the approach proposed in this study can be utilized to derive new and valuable insights in security aspects.

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