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손상(損傷) 인대(靭帶) 부위 아시혈(阿是穴)의 직접구(直接灸)를 이용한 부위별 염좌치험(捻挫治驗) 3례
조윤철 ( Yoon Chul Cho ),나경원 ( Kyung Won Ra ),정원석 ( Won Suk Chung ) 한방재활의학과학회 2005 한방재활의학과학회지 Vol.15 No.1
Objectives : Direct moxibustion applied on painful point of injured ligament, not acu-point, is effective method to treat acute pain and chronic weakness of injured ligaments. We recently experienced 3 case of sprain treated with direct moxibustion on painful point of ligaments. Methods : Patients who injured in lateral collateral ligament, anterior talo-fibular ligament, and collateral ligament of finger were treated by direct moxibustion on tender points of injured ligaments. Results and conclusion : There was successful results that pain and ROM was improved. It seems that burns due to moxibustion facilitate repair of ligament and control inflammation.
고관절 전치환술을 시행 후 내원한 만성 강직성 척추염 환자 치험 1례
조윤철(Yoon-chul Cho),나경원(Kyoung-won Ra),임세영(Se-young Lim),유상민(Sang-min Yoo) 척추신경추나의학회 2004 대한추나의학회지 Vol.5 No.1
Objectives : The objective of this study is to evaluate the treatment effect of Oriental therapy including exercise therapy in chronic ankylosing spondylitis with total hip replacement. Methods : Oriental therapy and exercise therapy were performed for 64days admission in a patient who had chronic ankylosing spondylitis with total hip replacement and physical tests were examined. Result : Pain and ROM of cervical, lumbar spine, and left hip joint has improved with this treatment. And Anorexia, dyspepsia, and fatigue were also decreased. Conclusions : In this case, oriental therapy was proved to be effective in improving chronic symptoms and general prostration of Ankylosing Spondylitis. And It is necessary to carry out exercise therapy regulary.
전술 애드 혹 네트워크에서 다중 홉 전송을 위한 자원 예약 및 백오프 기법
조윤철,윤선중,고영배,Cho, Youn-Chul,Yoon, Sun-Joong,Ko, Young-Bae 한국군사과학기술학회 2012 한국군사과학기술학회지 Vol.15 No.1
In multi-interface multi-channel(MIMC) based tactical ad hoc networks, QoS support for required operational capacity is one of the main challenging issues for multi-hop transmissions. To support QoS in such a harsh environment, we propose a novel MAC scheme to minimize multi-hop as well as per-hop delay. The current IEEE 802.11 MAC protocols should contend to reserve the channel resource at every hop by each sender. The every-hop channel contention results in a degradation of end-to-end delay for multi-hop transmissions. The basic idea of our scheme is to make a "multi-hop reservation" at the MAC layer by using the modified RTS frame. It contains additional information such as destination information, packet priority, and hop count, etc. In addition, we differentiate the contention window area according to the packet priority and the number of hops to deliver packets in the predefined allowed latency. Our scheme can minimize the multi-hop delay and support the QoS of the critical data in real time(i.e., VoIP, sensing video data, Video conference between commanders). Our simulation study and numerical analysis show that the proposed scheme outperforms the IEEE 802.11 MAC.
IP 기반 전술네트워크를 위한 효율적인 Link-K 메시지 통합 및 전송기법
윤선중,성윤경,조윤철,고영배,Yoon, Sun-Joong,Sung, Yun-Kyung,Cho, Youn-Chul,Ko, Young-Bae 한국군사과학기술학회 2010 한국군사과학기술학회지 Vol.13 No.6
Korea Department of Defense has been developing Link-K, Korean Joint Tactical Datalink, to support their independent joint operations and trying to enlarge the scope of Link-K tactical message delivery to nodes in IP based tactical networks for sharing situation awareness more broadly. A Link-K tactical message size is too small to fit into an IP packet, inefficiently wasting most of the IP packet space of the low bandwidth IP-based tactical networks. This paper proposes a new Link-K tactical message aggregation and delivery method when tactical messages need to be sent to some nodes located at IP-based tactical networks. With numerical analysis and OPNET simulation studies, we prove the effectiveness and efficiency of the proposed method.