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박귀종,문봉곤,박성준,박영식,이대희,이창희,나자경,정웅섭,표정현,이덕행,남욱원,이승우,양순철,한원용,Park, Kwi-Jong,Moon, Bong-Kon,Park, Sung-Jun,Park, Young-Sik,Lee, Dae-Hee,Ree, Chang-Hee,Nah, Jak-Young,Jeong, Woog-Seob,Pyo, Jeong-Hyun,Lee, Du 한국광학회 2011 한국광학회지 Vol.22 No.6
한국천문연구원이 개발한 다목적적외선영상시스템(Multi-purpose IR Imaging System, MIRIS)은 과학기술위성 3호(STSAT-3)의 주탑재체이다. 지구관측카메라(Earth Observation Camera, EOC)는 MIRIS를 구성하는 두 개의 적외선 카메라 중에 하나로, 지구의 $3{\sim}5{\mu}m$ 파장대의 적외선을 관측하기 위한 카메라이다. EOC의 광학계는 카세그레인 방식으로써 구경이 100 mm이고, 주경과 부경은 모두 비구면 반사경이다. EOC 주경의 플렉서는 링 타입으로써 발사환경에서 주경이 겪을 수 있는 충격과 진동을 견디도록 예압을 가하며 주경을 지지한다. 이는 마치 리테이너로 렌즈를 지지하는 것과 같은 메커니즘으로 주경을 지지하기 위한 시도이다. 광기계 해석을 통해 EOC 주경이 효과적으로 지지되고 있음을 확인했다. MIRIS(Multi-purpose Infra-Red Imaging System) is the main payload of the STSAT-3(Korea Science and Technology Satellite. 3), which is being developed by KASI(Korea Astronomy & Space Institute). EOC(Earth Observation Camera), which is one of two infrared cameras in MIRIS, is the camera for observing infrared rays from the Earth in the range of $3{\sim}5{\mu}m$. The optical system of the EOC is a Cassegrain prescription with aspheric primary and secondary mirrors, and its aperture is 100mm. A ring type flexure supports the EOC primary mirror with pre-loading in order to withstand expected load due to the shock and vibration from the launcher. Here we attempt to use the same mechanism by which a retainer supports the lens. Through opto-mechanical analysis it was confirmed that the EOC primary mirror is effectively supported.
Geant4를 활용한 국제우주정거장 내의 조직등가비례계수기 모의 실험
표정현,이재진,남욱원,김성환,김현옥,임창휘,박귀종,이대희,박영식,문명국,Pyo, Jeong-Hyun,Lee, Jae-Jin,Nam, Uk-Won,Kim, Sung-Hwan,Kim, Hyun-Ok,Lim, Chang-Hwy,Park, Kwi-Jong,Lee, Dae-Hee,Park, Young-Sik,Moon, Myung-Kook 한국천문학회 2012 天文學論叢 Vol.27 No.3
The International Space Station (ISS) orbits the Earth within the inner radiation belt, where high-energy protons are produced by collisions of cosmic rays to the upper atmosphere. About 6 astronauts stay in the ISS for a long period, and it should be important to monitor and assess the radiation environment in the ISS. The tissue equivalent proportional counter (TEPC) is an instrument to measure the impact of radiation on the human tissue. KASI is developing a TEPC as a candidate payload of the ISS. Before the detailed design of the TEPC, we performed simulations to test whether our conceptual design of the TEPC will work propertly in the ISS and to predict its performance. The simulations estimated that the TEPC will measure the dose equivalent of about 1:1 mSv during a day in the ISS, which is consistent with previous measurements.
치자(梔子) 약침(藥鍼)이 백서(白鼠) 모델 足과(족과) 념좌(捻挫) 통증(痛症)에 미치는 영향(影響)
구성태 ( Sung Tae Koo ),조명수 ( Myoung Soo Cho ),박성섭 ( Sung Sub Park ),김영태 ( Young Tae Kim ),박귀종 ( Kwi Jong Park ),손인철 ( In Cheul Sohn ),김경식 ( Kyoung Sik Kim ) 대한경락경혈학회 2005 Korean Journal of Acupuncture Vol.22 No.2
Objective: Frutus gardeniae, seed of Gardenia jasminoides Ellis is one of the crude drugs used for the treatment of inflammatory condition in oriental medicine. Methodes: The present study aimed to examine the analgesic effect and anti-inflammatory effect of Frutus gardeniae extract FGE) on a rat model of ankle sprain pain, and the relations between FGE-induced effect and endogenous nitric oxide (NO) and inducible NO synthase (iNOS), cyclooxygenase-2 (COX-2), and c-Fos protein expression in the spinal cord. As a chronic pain model, ankle sprain pain model was used to test the effect of FGE injection applied to acupuncture point. After the induction of ankle sprain, rats subsequently showed a reduced stepping force of the affected limb for at least the next 4 days. The reduced stepping force of the limb was presumably due to a painful knee. FGE dissolved in normal saline was injected several acupoints. Results: After the treatment, behavioral tests measuring stepping force were periodically conducted during the next 8 hours. FGE produced significant improvement of stepping force of the hindlimb affected by the ankle sprain lasting at least 4 hours. FGE produced the improvement of stepping force of the affected hindlimb in a dose-dependent manner. In addition, FGE injection showed inhibitory effect on the paw edema induced by ankle sprain. Both NO production and iNOS, COX-2 protein expression increased by ankle sprain were suppressed by FGE. FGE on combination with electroacupuncture (EA) produced more powerful and longer lasting improvement of stepping force of the hindlimb affected by the ankle sprain than either FGE or EA did. The present study suggest that FGE produces a potent analgesic effect on the ankle sprain pain model of the rat and that FGE-induced analgesia modulate endogenous NO through the suppression of iNOS/COX-2 protein expression.