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Programmable matter is a material whose properties can be programmed to achieve specific shapes or stiffnesses upon command. This concept requires constituent elements to interact and rearrange intelligently in order to meet the goal. This paper considers achieving programmable sheets that can form themselves in different shapes autonomously by folding.(More)
The purpose of this study was to assess the genetic variation and establish the relationship amongst breeds and strains using 15 chicken specific microsatellite markers. A total of 285 unrelated DNA samples from four Korean native chicken strains (Black strain of Korean native chicken; KL, Red Brown strain of Korean native chicken; KR, Ogol strain of Korean(More)
The IEEE 802.11 standard is the most dominant MAC protocol in wireless LANs. This paper introduces a novel backoff scheme to improve the performance of the IEEE 802.11 DCF. The original IEEE 802.11 DCF with the binary exponential backoff mechanism suffers from frequent packet collisions under high traffic load. Our proposed backoff scheme termed P-DCF(More)
This study aimed to find out the morbid status of Korean physicians living in Korea, as one part of a feasibility study on the Korean physician cohort. It was performed by mail survey using a self-administered questionnaire from Jan. 1, 1995 through Dec. 31, 1995. Study subjects were 21,552 including 17,877 (81.1%) males and 3,384 (15.5%) females. Person(More)
Recently, IEEE 802.11 wireless LAN (WLAN) has emerged as a widely accepted technology for broadband wireless networking. A WLAN handoff operation, which occurs when a wireless station (STA) changes its association from one access point (AP) to another, has not been well understood so far since the mobility has not been a major concern for typical WLAN(More)
In this paper, an H.263 video codec is implemented by adopting the concept of hardware and software co-design. Each module of the codec is investigated to find which approach between hardware and software is better to achieve real-time processing speed and flexibility. The hardware portion includes motion-related engines, such as motion estimation and(More)
Thrombomodulin (TM) is a membrane glycoprotein expressed on endothelial cells, which plays a major role in the protein C anticoagulation pathway. In people with inflammation, TM expression can be down-regulated on endothelial cells and a soluble form released into circulation, resulting in increased risk of thrombosis and disseminated intravascular(More)
The evolution of Android smartphone has increased the importance of touchscreen capabilities as user interaction as well as user input method. However, due to the limitation of Android architecture, every touch event may not create its corresponding display update all the times. To overcome this limitation, this paper proposes a novel technique of Touch(More)
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