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분산 트리거 계수 문제를 위한 효율적인 트리 기반 알고리즘
이재흥(Jae Heung Lee) 한국스마트미디어학회 2021 스마트미디어저널 Vol.10 No.4
분산 트리거 계수 문제는 외부로부터 트리거를 수신하는 개의 노드로 구성된 분산 시스템에서 수신한 전체 트리거 수의 합이 에 이르렀을 때 이를 사용자에게 알려주는 문제로 무선 센서 네트워크를 포함한 다양한 분산 시스템 환경에서 모니터링과 전역 스냅샷을 위해 사용된다. 이 논문에서는 분산 트리거 계수 문제를 위한 간단하고 효율적인 알고리즘을 제안한다. 제안 알고리즘은 차수가 이고 높이가 2인 트리 구조를 기반으로 동작하며, 남은 트리거 수에 따라 세 단계의 서로 다른 방식으로 동작한다. 제안 알고리즘에서 수신한 전체 트리거 수의 합이 에 이르렀을 때 이를 사용자에게 알려주지 않을 확률이 0임을 증명하였고, 실험을 통해 제안 알고리즘이 CoinRand에 비해 더 작은 메시지 복잡도를 가지며 노드 수가 많지 않을 때는 MaxRcv 또한 더 작음을 보여주었다. The distributed trigger counting problem is to notify the user when the total number of triggers received from a distributed system consisting of nodes reaches a predefined value . The distributed trigger counting problem is used for monitoring and global snapshots in various distributed systems. In this paper, we propose a simple and efficient algorithm for the distributed trigger counting problem. The proposed algorithm operates based on a tree structure of degree and height 2. The proposed algorithm operates in three different phases based on the remaining number of triggers. Experimental results show that the proposed algorithm has a smaller message complexity than CoinRand, and MaxRcv also performed better when the number of nodes is not large.
청심연자탕(淸心蓮子湯) 수추출물(水抽出物)이 XO/HX에 의해 손상(損傷)된 배양(培養) 해마신경세포(海馬神經細胞)에 미치는 영향(影響)
이재흥,김형순,배영춘,김경요,원경숙,황승연,Lee, Jae-Heung,Kim, Hyong-Soon,Bae, Young-Chun,Kim, Kyung-Yo,Won, Kyoung-Sock,Hwang, Seung-Yeon 사상체질의학회 2002 사상체질의학회지 Vol.14 No.3
The purpose of this study is to examine the toxic effects caused by xanthine oxidase/hypoxanthine(XO/HX) and the effects of herbal extracts such as Cheongsimyeonjatang(CYT) on the treatment of the toxic effects. For this purpose, experiments with the cultured hippocampal cells from new born mice were done. The results of these experiments were as follows. 1. XO/HX, a oxygen radical-generating system, decreased the survival rates of the cultured cells on MTT assay and NR assay, protein synthesis, and amounts of neurofilaments. 2. CYT have the efficacy of increasing protein synthesis decreased by XO/HX. 3. CYT have the efficacy. of increasing the amount of neurofilaments decreased by XO/HX. From the above results, it is suggested that Cheongsimyeonjatang (CYT) have marked efficacy as a protection for the damages caused by the XO/HX-mediated oxidative stress.
이재흥(Jae Heung Lee) 한국생물공학회 2012 KSBB Journal Vol.27 No.5
Phytoremediation-the use of plants for the in situ treatment of contaminated soil and water-has recently emerged as an inexpensive and user-friendly alternative to traditional methods of environmental clean-up. The present article outlines the characteristics of phytoremediation based on accumulated research evidence, along with discussions on its advantages and disadvantages. It further reviews various mechanisms involved in the phytoremediation processes: phytoextraction, rhizofiltration, phytostabilization, phytovolatilization and phytodegradation. Along the way, the author summarizes examples of its applications to environmental pollution control. These include wastewater treatment, removal of heavy metals, and hydrocarbons, remediation of recalcitrant contaminants, phytoremediation of radionuclides, and application of transgenic plants for enhanced biodegradation and phytoremediation. The remainder of the article briefly concludes with directions for future research.
Y-system으로 관찰한 Bell's palsy에 미치는 수기요법의 영향에 관한 임상적 연구
이재흥(Jae Heung Lee),안훈모(Hun Mo Ahn),홍승철(Seung Cheol Hong),이은미(Eun Mi Lee) 대한의료기공학회 2015 醫療氣功 Vol.15 No.1
Objects : The purpose of this study is to investigate the effect of Su-Gi therapy for Bell`s palsy by using Y-system(Yanagihara's unweighted grading system). Methods : We investigated 25 patients with Bell's palsy who had visited in the M, H Korean medicine hospital in Gyeonggi Province from December 27th, 2010 to April 8th, 2015. The Su-Gi therapy was done by 1 times daily. And each patients had been treated more than 25 days. We evaluated the change of them by using Y-system. Results : 1. We investigated 25 patients with Bell's palsy. 80% of the patients were females(20 patients), 20% of the patients were male(5 patients). The average age of patients was 47±15.15. The average period of Adm. treatment was 64% of the patients(16 patients) have left facial palsy, 36% of the patients(9 patients) have right facial palsy. 2. The mean Y-system score before treatment was 17.80±6.2, and the mean score after 25th days treatment was 33.68±4.0. Changes in the mean Y-system Score for each case according to the treatment days was increased significantly. 3. The mean Y-system score after 4th days treatment had increased by an 1.24±2.7 as compared to before treatment, the score after 10th days treatment was 8.7±4.7, the score after 14th days treatment was 11.84±5.8, the score after 20th days treatment is 14.72±6.7, and the score after 25th days treatment was 15.88±6.9. Every score was significantly increased. Conclusions: 1. Su-Gi therapy can be defined that is mainly using the hands to touch or movement of the human body skin, meridians and acupuncture points, muscles, joints and so on. And that is the treatment to communicate and harmonize to the meridians and acupuncture points, and to prevent of diseases, and to keep health. 2. All names of An-Gyo, An-Ma, Jum-Hyul, Chu-Na, massage, and so on should be referred to as Su-Gi therapy. And that individual names are to be classified and separated as the type or method of Su-Gi therapy. 3. The results of the treatment of Hwidam's Su-Gi therapy for Bell's palsy by using Y-system were significant.