http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
석우진(Woojin Seok),황영하(Young-Ha Hwang),노성기(SungKee Noh),김상하(SangHa Kim) 한국정보과학회 2008 정보과학회논문지 : 정보통신 Vol.35 No.5
본 논문에서는, WLAN과 셀룰러망의 중첩된 환경에서 망자원을 효율적으로 하는 호수락제어 방식을 제안한다. 제안된 방식은 비실시간 트래픽을 WLAN으로 분산 이동시킴으로써 셀룰러망의 혼잡도를 완화시킨다. 제안된 호수락제어 방식에 대해서 수치 분석과 시뮬레이션 분석을 한다. 시뮬레이션 결과로써, 제안된 호수락제어 방식이 기존의 방식보다 좋은 성능을 보여준다. 특히, 실시간 트래픽 보다 비실시간 트래픽의 높은 입력 트래픽율에 대해서 좀 더 안정적인 QoS를 유지할 수 있다. In this paper, we propose a resource effective call admission control(CAC) in integrated WLAN and cellular network. The proposed CAC mitigates the congestion of cellular network by handing over non-realtime traffic to WLAN. We analyze the proposed CAC in numerical and simulation method. The simulation results show that the proposed CAC achieves better performance than normal CAC. Especially, the proposed CAC can sustain desired QoS more robustly against high incoming non-realtime traffic load than againt realtime traffic load.
Reports : Phytosphingosine promotes megakaryocytic differentiation of myeloid leukemia cells
( Sang Hee Han ),( Jusong Kim ),( Yerim Her ),( Ikjoo Seong ),( Sera Park ),( Deepak Bhattarai ),( Guanghai Jin ),( Kyeong Lee ),( Gukhoon Chung ),( Sungkee Hwang ),( Yun Soo Bae ),( Jaesang Kim ) 생화학분자생물학회(구 한국생화학분자생물학회) 2015 BMB Reports Vol.48 No.12
We report that phytosphingosine, a sphingolipid found in many organisms and implicated in cellular signaling, promotes megakaryocytic differentiation of myeloid leukemia cells. Specifically, phytosphingosine induced several hallmark changes associated with megakaryopoiesis from K562 and HEL cells including cell cycle arrest, cell size increase and polyploidization. We also confirmed that cell type specific markers of megakaryocytes, CD41a and CD42b are induced by phytosphingosine. Phospholipids with highly similar structures were unable to induce similar changes, indicating that the activity of phytosphingosine is highly specific. Although phytosphingosine is known to activate p38 mitogen-activated protein kinase (MAPK)-mediated apoptosis, the signaling mechanisms involved in megakaryopoiesis appear to be distinct. In sum, we present another model for dissecting molecular details of megakaryocytic differentiation which in large part remains obscure. [BMB Reports 2015; 48(12): 691-695]