스쿠버다이빙 참가자의 참여정도와 참여동기 및 행복감의 관계

김동욱(Dong Uk Kim),김영갑(Young Kab Kim) 한국사회체육학회 2012 한국사회체육학회지 Vol.0 No.48

This objective of this study is to analyze the relationship between participation level and participation motivation and happiness among skin-scuba participants. The scope of this study is the skin-scuba participants who activated in some Dong-Hae diction of Kangwondo in 2011. The scope was abstracted by using Convenience Sampling Method. We finally analyzed 278 questionnaires which were distributed 300 first. The way of material disposing was frequency analysis, descriptive analysis, correlation analysis, and multiple regression analysis by using SPSS program. The following research results were drawn. First, The intensity of exercise in participation level had a good effect on the health improvement and The exercise frequency of participation level had a good effect on self-development and The exercise frequency and exercise period of participation level had a good effect on guidance hope. Second, The exercise intensity of participation level had a good effect on satisfaction and The exercise intensity and frequency of participation level had a good effect on accomplishment. Third, The health improvement, accomplishment, guidance hope and sociality had a good effect on the happiness of satisfaction, and the health improvement and sociality had a good effect on the happiness of accomplishment.

Complete genome sequence of Spirosoma aerolatum KACC 17939^T, a bacterium related to the DNA repair

김동욱,김주영,김수정,김민지,이주연,김명겸,Kim, Dong-Uk,Kim, Ju-Young,Kim, Su Jeong,Kim, Min Ji,Lee, Ju Yeon,Kim, Myung Kyum The Microbiological Society of Korea 2017 미생물학회지 Vol.53 No.3

이 연구에서는 자동차의 에어컨의 바이오필름환경에서 분리 된 Spirosoma aerolatum KACC $17939^T$의 완전한 게놈 서열을 분석하였다. 이 게놈은 G + C 함량이 48.3%인 7,959,595 bp으로 구성되어 있고 6,471개의 유전자와 6,471개의 단백질 코딩 유전자, 9개의 rRNA 유전자 그리고 43개의 tRNA 유전자 및 115개의 위유전자(pseudogene)를 포함하고 있다. A Gram-stain-negative, yellow-pigmented bacterial strain, designated Spirosoma aerolatum KACC $17939^T$, was isolated from a biofilm of car air conditioner collected in Republic of Korea. In this study, we report the complete genome sequence of a bacterium Spirosoma aerolatum KACC $17939^T$ obtained using the PacBio RS II platform. The genome comprised of 7,959,595 bp with the G + C content of 48.3%, the genome included 6,640 genes were predicted, among them, 6,471 genes are protein-coding genes.

Complete genome sequence of Spirosoma rigui KCTC 12531^T, a bacterium isolated from fresh water from the Woopo wetland for taxonomic study

김동욱,김주영,김수정,김민지,이주연,김명겸,Kim, Dong-Uk,Kim, Ju-Young,Kim, Su Jeong,Kim, Min Ji,Lee, Ju Yeon,Kim, Myung Kyum The Microbiological Society of Korea 2017 미생물학회지 Vol.53 No.3

이 연구에서는 우포늪의 깨끗한 물에서 분리된 Spirosoma rigui KCTC $12531^T$의 완전한 게놈 서열을 분석하였다. 이 게놈은 G + C 함량이 54.4%인 5,828,404 bp으로 구성되어 있고 4,774개의 유전자와 4,647개의 단백질 코딩 유전자, 9개의 rRNA 유전자 그리고 43개의 tRNA 유전자 및 73개의 위유전자(pseudogene)를 포함하고 있다. Spirosoma rigui KCTC $12531^T$ was isolated from fresh water from the Woopo wetland, Korea. In this study, we report the complete genome sequence of a bacterium Spirosoma rigui KCTC $12531^T$, its complete genome sequence was obtained using the PacBio RS II platform. The genome comprised of 5,828,404 bp with the G + C content of 54.4%, the genome included 4,774 genes were predicted, among them, 4,647 genes are protein-coding genes.

번역 - 위험평가

김동욱,Kim, Dong-Uk 한국화재보험협회 1988 防災와 保險 Vol.37 No.-

경쟁위험 하에서의 누적발생함수 추정량 성능 비교

김동욱,안치경,Kim, Dong-Uk,Ahn, Chi-Kyung 한국통계학회 2007 응용통계연구 Vol.20 No.2

경쟁위험(competing risk) 하에서의 누적 발생함수(cumulative incidence function)는 일반적으로 비모수적 방법으로 추정된다. 그러나 관심 있는 원인에 의한 사건이 다른 원인에 의한 사건보다 상대적으로 적게 발생하는 경우에 비모수적 방법으로 추정된 누적발생함수는 이산성으로 인해 다소 정확하지 않게 된다. 이와 같은 경우에 Bryant와 Diagnam(2004)는 관심 있는 원인에 대한 원인특정적 위험함수(cause-specific hazard function)를 모수적으로 모형화하고 다른 원인에 의한 사건은 비모수적으로 추정하는 준모수적 방법을 제안했다. 본 연구에서는 준모수적 누적발생함수 추정량을 재표현하고 와이블분포모형과 대수 정규분포모형으로 확장하였다. 또한 대수 정규분포 원인특정적 위험모형일 경우 누적 발생함수에 대한 비모수적 추정량, 와이블분포 준모수적 추정량과 대수 정규분포 준모수적 추정량의 효율성을 비교하며 준모수적 추정량의 성능과 모형 오설정이 미치는 영향을 살펴보았다. For the time-to-failure data with competing risks, cumulative incidence functions (CIFs) are commonly estimated using nonparametric methods. If the cases of events due to the cause of primary interest are infrequent relative to other cause of failure, nonparametric methods may result in rather imprecise estimates for CIF. In such cases, Bryant et al. (2004) suggested to model the cause-specific hazard of primary interest parametrically, while accounting for the other modes of failure using nonparametric estimator. We represented the semiparametric cumulative incidence estimator and extended to the model of Weibull and log-normal distribution. We also conducted simulations to access the performance of the semiparametric cumulative incidence estimators and to investigate the impact of model misspecification in log-normal cause-specific hazard model.

제 1상 임상시험의 SM, CRM, ATD에서 결정된 MTD의 정확성과 안전성 비교

김동욱,길순경,Kim, Dong-Uk,Kil, Sun-Kyoung 한국통계학회 2009 Communications for statistical applications and me Vol.16 No.1

제 1상 임상시험은 사람을 대상으로 처음 실시되므로 약물 투여의 안전성과 정확성이 신중히 고려되어야 한다. 따라서 제 1상 임상시험에서는 적은 수의 피험자를 통해 최대허용용량(maximum tolerated dose)을 정확하게 찾아야 한다. 제 1상 임상시험에서 최대허용용량을 결정하는 방법에는 표준방법(standard method), 연속재평가방법(continual reassessment method) 그리고 가속적정계획(accelerated titration designs) 방법이 있다. 본 연구에서는 동일한 모형에서 세 방법을 동시에 고려하여 최대허용용량의 안전성과 정확성을 살펴보았다. 또한 세 방법에 대해 최대허용용량에서 기대독성확률을 구하여 비교하였다. 그리고 ATD와 CRM의 단점을 보완한 수정된 ATD와 수정된 CRM을 포함하여 여러 방법들을 동일한 모형에서 동시에 그 성능을 비교하였다. The purpose of a phase I clinical trial is to determine the maximum tolerated dose(MTD) of a new drug. This paper investigates the performance of standard method, continual reassessment method and accelerated titration designs in phase I clinical trials. Especially we study the precision and safety at the MTD of these methods. We utilize hyperbolic tangent function and power function to define dose-toxicity model. For each method, expected toxicity rate at MTD is computed and compared with target toxicity probability. We also suggest some modifications of these methods and show some improvements in performance.

목본식물 형성층 전기저항에 영향을 주는 환경 요인

김동욱,김민수,이부용,Kim, Dong-Uk,Kim, Min-Soo,Lee, Bu-Yong 한국조경학회 2007 韓國造景學會誌 Vol.35 No.3

This study was conducted to analyze the effects of environmental factors such as soil moisture, light intensity, temperature and humidity on changes in cambial electrical resistance. To improve data quality, cambial electrical resistance was continuously measured at fixed points by using a data logger isolated from alternating current. The relationship between environmental factors and changes in cambial electrical resistance was also analyzed. The results are as follows: 1. Cambial electrical resistance is highly correlated to the temperature of the measured area(r=-0.934). Therefore, temperature compensation is needed to analyze the effects of other environmental factors on cambial electrical resistance changes. 2. If temperature is compensated for, the change of cambial electrical resistance is highly correlated to water vapor pressure(r=-0.836). 3. If temperature and humidity are compensated for, the change of cambial electrical resistance is highly correlated to intensity of light(r=-0.738). 4. Diurnal deviation of soil water potential is not more significantly related than the change of cambial electrical resistance. However, in the long-term, soil water potential and cambial electrical resistance are highly correlated(r=-0.831). This indicates that soil moisture significantly influences the long-term change of cambial electrical resistance.

활주로 연약지반 처리 및 포장공법

김동욱,Kim, Dong-Uk 한국도로학회 2003 도로포장공학회지 Vol.5 No.2

하수처리사업 감리제도의 문제점 및 개선방안

김동욱,Kim, Dong-Uk 한국상하수도협회 1996 水道 Vol.23 No.3

마그네슘의 결정립 성장과 집합조직: 상장모델 계산

김동욱,차필령,Kim, Dong-Uk,Cha, Pil-Ryung 한국분말야금학회 2011 한국분말재료학회지 (KPMI) Vol.18 No.2

We investigate grain growth behavior of poly-crystalline Mg sheet having strong basal fiber texture using phase field model for grain growth and micro-elasticity. Strong initial basal texture was maintained when external load was not imposed, but was weaken when external biaxial strain was imposed. Elastic interaction between elastic anisotropy of Mg grain and external load is the reason why texture evolution occurs.