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이선학(Sun Hak Lee),김용익(Yong Ik Kim),김진수(Jin 대한통증학회 1997 The Korean Journal of Pain Vol.10 No.1
N/A Background: There are several treatment of trigeminal neuralgia including Gasserian Ganglion Block. This paper retrospectively analyze the efficacy of Gasserian Ganglion Block as main treatment of trigeminal neuralgia. Methods: We studied 55 patients for followings; sex, age, duration from onset to visit, consulted mediator, causes, characteristics of pain, affected area, types of block, kinds and volume of used neurolytic agents, duration from first block to repeat block, types of repeat block, complications, if surgery was necessary after block Results: Charcteristic items of trigeminal neuralgia are similar with other studies. Mean duration of pain relief was 23 months. The duration was shortened in the repeat block. There were no significant complication. Conclusion: Considering Gasserian Ganglion Block as main treatment of trigeminal neuralgia is an effective and safe method. Therefore we would like to recommend the need to increase public awareness of trigeminal neuralgia and its possible treatment in pain clinics through mass commanication.
저병원성 조류인플루엔자 감염에 따른 육계의 면역인자 변화
김덕환(Deok-Hwan Kim),김규직(Kyu-Jik Kim),노진용(Jin-Yong Noh),이선학(Sun-Hak Lee),송창선(Chang-Seon Song),박혜경(Hae Kyoung Park),남상섭(Sang-Soep Nahm) 한국가금학회 2020 韓國家禽學會誌 Vol.47 No.4
가금산업에서 전염성 질병은 농장의 생산성에 악영향을 미치는 중요한 요인이다. 그 중 저병원성 조류인플루엔자는 산란율과 증체율에 영향을 준다. 본 연구에서는 육계에서 저병원성 조류인플루엔자 감염시 혈청 단백질 및 사이토카인의 변화 양상을 조사하였다. 1일령의 육계를 1주령부터 4주령까지 각 주령마다 저병원성 조류인플루엔자를 공격 접종 후 혈중 chDBP, Chicken Ovotransferrin, chIL-1β, chIL-6, chIFN-γ의 양을 비교하였다. 어린 주령에 저병원성 조류인플루엔자를 공격접종한 그룹에서는 4주령에 음성대조군과 비교해 chIL-1β, chIL-6가 유의성 있는 낮은 값을 보이는 것을 확인하였다. 추가적인 연구를 통하여 chIL-1β, chIL-6가 질병의 경과를 확인할 수 있는 보조적인 감염 지표로 활용될 수 있을 것으로 판단된다. Avian influenza virus infection, one of the most important diseases recognized in the poultry industry, is known to cause changes in cytokine and serum protein levels. However, the normal ranges and/or age-dependent changes in important cytokines and serum proteins associated with influenza infection have not been fully elucidated. In this study, the levels of cytokines (interleukin-1β, interleukin-6, and interferon-γ) and serum proteins (vitamin D binding protein and ovotransferrin) were determined in 1-week- to 4-week-old broilers at 1-week intervals after challenge with a low pathogenic influenza virus. The results showed that the physiological levels of cytokines and serum proteins varied with aging during the 4 weeks. The levels of interleukin-1β and interleukin-6 increased from 20% to 35% after influenza infection compared to those in the negative control group, indicating that these cytokines may be used to monitor disease progression.
LPGi 시스템의 SULEV Emission 개발 (Ⅱ)
강현홍(Hyunhong Kang),박병진(Byungjin Park),이동훈(Donghoon Lee),이선학(Sunhak Lee),조진행(Jinhaeng Cho),지선호(Sunho Ji) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
The trend of exhaust emission regulation requires SULEV which is much more stringent than ULEV. The LPGi (LPG gaseous injection) system vehicle has been commercialized, but is required to be improved to SULEV regulation. Acknowledged methods of Exhaust After Treatment system are EHC(Electrically Heated Catalyst), Spark Retard Control and SAI(Secondary Air Injection) which has been known as a method of reducing Catalyst light-off time. The focus of this paper is to reduce HC(Hydro-Carbon), CO(Carbon monoxide) & NOx(Nitrogen Oxides) emissions using fuel control with current LPGi system. In theory, the thermal efficiency and the vaporization performance of LPG fuel is better than gasoline fuel. Additionally, LPGi system does not have wall wetting phenomenon because the previously vaporized fuel is injected into cylinder directly. So in case of LPGi system, it is possible to control the exact fuel mass even from cold start. Thus LPGi system can reduce much of the exhaust HC even before catalytic converter will be activated. The purpose of this paper is to introduce the technology as to how to develop the engine control system to reduce the emissions for KSULEV and to share the KSULEV emission test result which was executed by the National Transportation Pollution Research Center.