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2011 대구세계육상선수권대회 남자 높이뛰기 메달리스트들의 바이오메카닉스적 특성 분석
김의환 ( Eui Hwan Kim ),배영상 ( Young Sang Bae ),김성섭 ( Sung Sup Kim ),권문석 ( Moon Seok Kwon ),위웅량 ( Ung Ryang Wo ),김기만 ( Ki Man Kim ),이정민 ( Jeong Min Lee ) 한국운동역학회 2011 한국운동역학회지 Vol.21 No.5
The purpose of this study was to perform a kinematic analysis of the high jump techniques of the three men`s medalists at the 2011 IAAF Championships in Daegu (August 27-September 4, 2011), In particular, a three-dimensional coordinates method was used to analyze the last three strides before touchdown, the touchdown techniques, and the movements after takeoff toward the bar. An analysis of the, data for the biomechanical characteristics of the world`s best high jumpers could contribute to an improvement in the performance of a national high jumper. The first conclusion of the data analysis was that the arm movements of the gold medalist, J. Williams, had a single arm form, whereas the arm movements of the other medalists were a double arm form. Second, the difference in the knee joint angles upon touchdown and toe-off was 10˚. Third, J. Williams achieved his maximum CM height after takeoff (1.26m) using the maximum flexion of his knee joint. Fourth, the foot contact duration of A. Dmitrik (0.11 s) was the shortest among the medalists, and the ratio for his transformation of horizontal velocity to vertical velocity was the greatest (75.25%) among the three. Last, the maximum CM height of T. Barry was the greatest, and his foot contact duration was the longest.
최수진,김인규,문상만,민승용,류동영,Choi, Su-Jin,Kim, In-Kyu,Moon, Sang-Man,Min, SeungYong,Rew, Dong-Young 항공우주시스템공학회 2015 항공우주시스템공학회지 Vol.9 No.4
Korea Aerospace Research Institute(here after KARI) has a plan to launch experimental lunar orbiter in 2018, and lunar orbiter and lander in 2020. There are several ways to go to the moon. Which one is direct transfer trajectory and another one is phasing loop transfer trajectory and the other one is WSB trajectory. Regardless of the transfer trajectories, LOI maneuver is the most important maneuver of all mission sequences because if this burn is failed, it is too difficult to get into the lunar orbit in the future. This paper describes first LOI target value of foreign lunar orbiters and analyzes orbital variations of experimental lunar orbiter according to various target values. By analyzing the variation of orbiter parameter after first LOI, proper orbital period for LOI target value are recommended to meet the inclination, apoapsis and periapsis altitude constraints.
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.
Sirolimus/steroids Maintenance Therapy after Early Cyclosporine Withdrawal
Man Ki Ju,Duck-Jong Han,Soo Jin Kim,In Sung Moon,Yong Lim Kim,Hyun Chul Kim,Seong Joo Kim,Sang Joon Kim,Soon Il Kim,Yeong Hoon Kim,Chang Kwon Oh,Yu Seun Kim 대한외과학회 2010 Annals of Surgical Treatment and Research(ASRT) Vol.79 No.4
Purpose: Sirolimus has potent anti-rejection activity as well as the ability to prolong allograft survival and reduce nephrotoxicity. This study was designed to evaluate the efficacy and safety of sirolimus in Korean de novo renal transplantation. Methods: We included 79 patients who received sirolimus at nine Korean transplantation centers in the intention-to-treat and valid-for-safety analyses. The study was an open, single treatment arm multicenter trial with 12 months of patient follow-up. Initially, patients received 2 ㎎ of sirolimus (after 6 ㎎ of loading does) with cyclosporine and steroids. Sirolimus was administered for up to 12 months. Antibody induction was not used. At 3 months after transplantation, cyclosporine was progressively withdrawn over 4 to 8 weeks while sirolimus was adjusted to obtain trough concentrations within 15∼30 ng/㎖ up to 6 months and concentrations within 12∼24 ng/㎖ between 7 and 12 months. Results: The proportion of patients who completed the 12-month sirolimus medication per protocol was 74.7% (59/79). Cyclosporine withdrawal was possible in 64 recipients (81.0%). Fifteen patients discontinued sirolimus before cyclosporine withdrawal, and 5 recipients did so after successful cyclosporine withdrawal. Most common causes of sirolimus discontinuation were graft rejection (n=8). Incidence of biopsy-proven acute rejection within 6 months after transplantation was 15.2%. Patient and graft survival rates at 12 months post transplantation were 97.5% and 96.2%, respectively. During the study period, three graft losses occurred by patient death. Conclusion: Based on this study, cyclosporine and sirolimus induction followed by cyclosporine withdrawal at 3 months post-transplant is considered to be efficient and safe after primary renal transplantation.
( Moon Seong Baek ),( Yunkyoung Lee ),( Sang-bum Hong ),( Chae-man Lim ),( Younsuck Koh ),( Jin Won Huh ) 대한내과학회 2021 The Korean Journal of Internal Medicine Vol.36 No.1
Background/Aims: It is unclear whether corticosteroid use in patients with acute respiratory distress syndrome (ARDS) improves survival. This study aimed to investigate whether the administration of corticosteroids to patients in the early phase of moderate to severe ARDS is associated with improved outcomes. Methods: We analyzed the data of patients who received corticosteroids within 7 days of the onset of ARDS between June 2006 and December 2015 at a single tertiary teaching hospital. A total of 565 patients admitted with moderate to severe ARDS were eligible. The outcomes of patients treated with methylprednisolone 40 to 180 mg/day or equivalent (n = 404) were compared to those who did not receive steroids (n = 161). The primary and secondary outcomes were 28- and 90-day mortality rates, respectively. Propensity scores were used to adjust for baseline covariates. Results: The overall mortality at 28 days was not significantly different between the corticosteroid-treated and control groups (43.8% vs. 41%, p = 0.541). At 90 days, the overall mortality rate was higher in the corticosteroid-treated group than in the control group (59.2% vs. 48.4%, p = 0.021). However, on propensity score matching, corticosteroid therapy was not associated with a higher 28-day mortality rate (odds ratio, 1.031; 95% confidence interval, 0.657 to 1.618; p = 0.895) and 90 days (odds ratio, 1.435; 95% confidence interval, 0.877 to 2.348; p = 0.151). Conclusions: Corticosteroid therapy was not associated with 28- or 90-day mortality in the early phase of moderate to severe ARDS on propensity score matching analysis.
Proteomic Analysis of Seed Storage Proteins in Low Allergenic Soybean Accession
( Sung Cheol Koo ),( Dong Won Bae ),( Jun Su Seo ),( Kyoung Mi Park ),( Man Soo Choi ),( Seok Hyeon Kim ),( Sang In Shim ),( Kyeong Moon Kim ),( Jong Il Chung ),( Min Chul Kim ) 한국응용생명화학회 2011 Applied Biological Chemistry (Appl Biol Chem) Vol.54 No.3
Soybean (Glycine max L. Merr.) is a major source of protein for human and animal nutrients. However, soybean seed also contains a number of allergenic proteins, which limit its extensive usage in the food industry. P34 (Gly m Bd 30K), a low-leveled but highly conserved seed storage protein, has been described as a major allergen in soybean seed. Recently, two low P34 soybean accessions, PI603570A and PI567476, were identified by extensive screening of soybean germplasm. We have surveyed spatiotemporal expression pattern of P34 protein in low P34 accession, PI567476, and cultivated soybean accession, Clark, using antibody against P34. Immunoblot analysis showed not only seed specific expression pattern of P34, but also significantly reduced expression of P34 in PI567476 compared to Clark. Additionally, we performed proteomic analysis to compare protein compositions between PI567476 and Clark accessions. Although the overall distribution pattern of the protein spots was similar in both soybean accessions, 19 protein spots showing different intensity between both accessions were detected and analyzed by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF/MS). PI567476 accession exhibited altered expression of several seed storage proteins including allergens and seed maturation-related proteins. The detailed analysis for composition of seed storage proteins of the PI567476 accession provides valuable information in use of this soybean germplasm for breeding of low allergenic elite soybean lines, which is expected to enhance food safety and make soy products available to allergen-sensitive individuals.