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석병석(Suk, Byong-suk),민승용(Min, Seung-yong),권재욱(Kwon, Jae-wook),김창균(Kim, Chang-kyoon),문상만(Moon, Sang-man),최수진(Choi, Su-jin),구철회(Koo, Cheol-hea),김인규(Kim, In-kyu),류동영(Ryu, Dong-young) 한국항공우주연구원 2015 항공우주산업기술동향 Vol.13 No.2
시험용 달 궤도선의 발사 요구조건 사전 분석 단계로 최근 외국에서 발사한 달 탐사선의 발사 요구조건을 분석하였다. 일반적으로 달 탐사선의 발사 요구조건은 달 임무 궤도를 결정하는 중요한 요소이며, 또한 지구, 달, 태양의 상대적인 운동으로 인해 임무궤도 요구조건을 만족하는 발사 가능 시간이 주기적으로 반복되는 경향이 있다. 분석 결과 설정된 발사 요구조건들로부터 달 궤도선의 주 임무가 달의 남/북극 지역의 광학 관측 임을 간접적으로 알 수 있었다. 향후 우리나라 달 궤도선 발사 요구 조건 설정에 본 논문이 도움이 되길 기대한다. In the preliminary study on launch window requirement for Korea Path-finder Lunar Orbiter(KPLO), the recent foreign lunar orbiter’s lauch window requirement was analyzed. Normally, the launch requirements depends on the mission orbit. Based on the relationship between Moon, Earth, and Sun, the launch time will be available periodically to meet requirements. In this paper, it is understood that the launch window requirements come from payload mission requirements to take picture each poles of Moon. This paper might be a practical example to derive KPLO launch requirements in the future.
Design, Synthesis, and In Vitro Evaluation of APIO Analogue of Neplanocin A
Moon, Hyung Ryong,Kwon, Sung Hee,Lee, Jeong Ah,Yoo, Byul Nae,Kim, Hea Ok,Chun, Moon Woo,Kim, Hee-Doo,Kim, Joong Hyup,Jeong, Lak Shin 梨花女子大學校 藥學硏究所 2003 藥學硏究論文集 Vol.- No.12
A novel apio analogue of neplanocin A was efficiently synthesized from D-ribose via stereoselective aldol-retroaldol reaction for introducing hydroxymethyl group and RCM reaction for synthesizing carbocycle, and its inhibitory activity against SAH hydrolase was assayed.
Kwon, Su-Kyoung,Kim, Chung-Hoon,Lee, Kyung-Hee,Jeon, Il Kyung,Ahn, Jun-Woo,Kim, Sung-Hoon,Chae, Hee-Dong,Kang, Byung-Moon The Korean Society for Reproductive Medicine 2013 Clinical and Experimental Reproductive Medicine Vol.40 No.3
Objective: To evaluate the effect of the addition of estradiol to luteal progesterone supplementation in GnRH antagonist cycles for infertile patients undergoing IVF/ICSI. Methods: One hundred and ten infertile patients, aged 28 to 39 years, were recruited for this prospective randomized study. They were randomly assigned to receive vaginal progesterone gel (Crinone) along with 4 mg estradiol valerate (group 1, n=55) or only Crinone (group 2, n=55) for luteal support. A GnRH antagonist multiple dose protocol using recombinant human FSH was used for controlled ovarian stimulation (COS) in all of the subjects. The COS results and pregnancy outcomes of the two groups were compared. Results: Group 1 and 2 were comparable with respect to the patient characteristics. The COS and IVF results were also comparable between the two groups. There were no differences in the clinical pregnancy rate (PR) and multiple PR between the two groups. However, the embryo implantation rate were significantly higher in group 1 than that in group 2 (22.2% vs. 13.3%, p=0.035). The incidence of luteal vaginal bleeding (LVB) was significantly lower in group 1 (7.4% vs. 27.8%, p=0.010). Conclusion: The addition of estradiol to luteal progesterone supplementation in GnRH antagonist cycles reduces the incidence of LVB and increases the embryo implantation rate in infertile patients undergoing IVF/ICSI.
Moon, Sung-Kwon,Lee, Jae-Cheoun,Kim, Young-Jae,Lee, Sang-Hoon,Hahn, Se-Hyun,Jang, Ki-Taeg 大韓小兒齒科學會 2004 大韓小兒齒科學會誌 Vol.31 No.2
치아 우식의 예방에 있어서 불소 도포는 효과적인 방법으로 재광화를 촉진하고 탈회를 억제한다. APF gel은 전문가 불소도포용으로 가장 일반적인 방법이었으나 최근 fluoride varnish가 소개되면서 그 사용이 증가되고 있다. 이번 연구의 목적은 fluoride varnish와 acidulated phosphate fluoride(APF gel)이 인공우식 병소에 미치는 영향을 시편의 화학적 고정이나 절단 없이 미세전산화 단층 촬영과 3차원 영상을 이용하여 재광화 효과를 비교해 보고자 함이다. 48개의 우식이 없는 건전한 영구 소구치에 인공우식을 유발하고 각 군당 16개씩, 세 군으로 나누었다. 1군은 대조군으로 어떠한 처치도 시행하지 않았다. 2군은 APF gel을 도포하고 1분 후에 gel을 거즈로 제거하여 수세하고 3군은 fluoride varnish를 도포한 후 45분 후에 얇은 varnish 막을 외과용 칼로 조심스럽게 제거하였다. 그 후 각 시편을 50㎖의 인공타액에 3개월 동안 담그어 둔 후 그 사이 기간동안 매달 미세전산화 단층 촬영을 이용하여 3차원 영상을 얻었다. 3차원 영상분석 프로그램으로 재광화 부위의 밀도를 측정하고 다음과 같은 결과를 얻었다. 1. 모든 군에서 시간이 지남에 따라 인공우식 부위의 밀도는 증가하였다. 2. APF gel 군과 fluoride varnish 군에서 한 달, 두 달, 세 달 후 밀도가 대조군보다 통계학적으로 유의성 있게 높았다(P<0.05). 3. APF gel 군과 fluoride varnish 군에서 처치전과 처치 한 달 후의 밀도 차이가 대주군보다 통계학적으로 유의성 있게 높았으며 fluoride varnish 군에서 처치 한 달 후와 처치 두 달 후의 밀도 차이가 대조군과 APF gel 군보다 유의성 있게 높았다(P<0.05). 4. Fluoride varnish가 APF gel보다 불소 처치 후 두 달, 세 달 후 재광화 효과가 더 우수하였고 오래 지속되었다. The application of acidulated phosphate fluoride gel(APF) and fluoride varnishes are the most common topical fluoride therapy. The purpose of this in vitro study was to compare the remineralization effects of two topical fluoride agents, APF gel and fluoride varnish with microtomograph and 3D image analyzer without sample preparation and chemical fixation. For the purpose of the study, the artificial caries lesion was caused on the caries-free permanent premolar and 48 specimens were divided into three groups each containing 16 specimens. No application was performed on group 1, which acted as control group. Group 2 was treated with APF gel and was removed after a minute. Group 3 was treated with the topical application of fluoride varnish and removed after 45 minutes. Each specimen was placed into a closed container with 50ml of a artificial saliva during three months and the 3D images of the remineralization area were taken using the SkyScan each month. Using the density-measuring program in V works^(TM), the density value of the remineralization area was measured. The following results were obtained: 1. All groups demonstrated an increase in the density of artificial caries lesion with time. 2. The density was significantly higher in APF gel and fluoride varnish group than control group at 1 month, 2 months, 3 months after the treatment(P(0.05). 3. The difference of the density between that "prior to treatment" and that "l month after treatment in Group 2 and Group 3 was significantly higher than that of Group 1 and, the difference of the density between that "1 month after treatment and that "2 month after treatment" in Group 3 was significantly higher than that of Group 1 and 2(P〈0.05). 4. The fluoride varnish was more effective after 2 and 3 months and continuous than the APF gel.
Kwon, Keun-Sang,Wang, Sung Il,Lee, Ju-Hyung,Moon, Young Jae,Kim, Jung Ryul Williams & Wilkins Co 2017 Medicine Vol.96 No.31
<P><B>Abstract</B></P><P>This is a retrospective observational study. Greater trochanteric epiphysiodesis (GTE) has been recommended to prevent Trendelenburg gait and limitation of the hip joint motion due to trochanteric overgrowth after femoral varus osteotomy (FVO) in Legg–Calvé–Perthes disease (LCPD). However, capital femoral physeal arrest frequently occurs in patients with severe disease (lateral pillar C), so GTE might not be as effective in these patients. The aim of this study was to compare trochanteric growth inhibition due to GTE after FVO between 2 age groups (<8 or >8 years) in patients with lateral pillar B and B/C border LCPD and evaluate the effectiveness of GTE compared with the normal, unaffected hip.</P><P>This study included 19 children with lateral pillar B and B/C border LCPD in 1 leg who underwent FVO followed by GTE. Of the 19 children, 9 underwent GTE before the age of 8 years and 10 underwent GTE after 8 years of age. On radiographs taken at the immediate postoperative period and at skeletal maturity, the articulo-trochanteric distance (ATD), center-trochanteric distance (CTD), and neck-shaft angle (NSA) were compared between the 2 age groups. The amount of correction was compared between groups. The contralateral, unaffected hip was used as a control for trochanteric growth. The patients were clinically evaluated with Iowa hip score at the final follow-up.</P><P>There was no significant difference between the 2 age groups in terms of time to GTE, length of follow-up, or lateral pillar classification. In the affected hip, the amount of correction of the ATD, CTD, and NSA was significantly greater in patients < 8 years than in patients > 8 years. However, in the unaffected hip, the change in the ATD, CTD, and NSA did not differ significantly between the 2 groups.</P><P>We suggest that FVO followed by GTE for lateral pillar B and B/C border LCPD in patients under the age of 8 years can affect growth of the greater trochanter. However, effective growth inhibition due to GTE was not achieved after 8 years of age.</P>
Performance Analysis of 3D Localization for a Launch Vehicle Using TOA, AOA, and TDOA
Kwon, Soonho,Kim, Daeoh,Lee, Jihye,Moon, Sangmi,Chu, Myeonghun,Bae, Sara,You, Cheolwoo,Liu, Huaping,Kim, Jeong-Ho,Kim, Dae Jin,Park, Hosung,Kim, Jin Young,Kim, Cheol-Sung,Hwang, Intae Springer-Verlag 2018 Wireless personal communications Vol.103 No.2
Moon, Dong Eon,Choi, Jong Ho,Lee, Sung Kyun,Shim, Jae Yong,Kwon, Ou Kyung,Suh, Jae Hyun,Park, Chool Joo,Kim, Sung Nyeun,Chung, Woon Hyok CATHOLIC MEDICAL CENTER 1990 Bulletin of the Clinical Research Institute Vol.18 No.1
This study was conducted to investigate the potentiating effect of lidocaine on priming priciple with atracurium and the possibility of this technique for rapid endotracheal intubation. The onset time, clinical duration and recovery index of muscle relaxants were evaluated by the use of T1 to T4 ratio (%) calculated from train of four (TOF) responses recorded with biophysiogphy in common peroneal nerve-anterior tibial muscle preparation in rabbit. Lidocaine pretreatment significantly shortened the onset time of neuromuscular blockade induced by the priming principle with atracurium and did mot effect on clinical duration and recovery index. These results shelved that the combination of lidocaine pretreatment and priming principle can shorten the onset time of neuromuscular blockade induced by the administration of atracurium and it can be used for rapid endotracheal intubation in clinical practice.