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김정수,김선효,권용헌 한국운동과학회 2002 운동과학 Vol.11 No.2
김정수, 김선효, 권용헌. 10대 카누선수의 철분영양상태 조사. 운동과학 제11권 제2호, 535-550, 2002. 이 연구는 남녀 중·고등학교 카누선수를 preseason 중에 18명, season 중에 12명을 대상으로 식이 조사와 혈액검사를 통해 카누 선수의 스포츠 빈혈 요인을 분석하였다. Preseason과 season 중 남녀 카누 선수의 평균 연령은 15.3세, 평균신장은 173.3㎝, 평균체중은 64.9㎏이었으며, 평균체질량 지수(BMI)는 21.7로 표준 체중에 속하였다. 식이 조사는 24시간 기억법(24-hour recall method)과 CAN프로그램(computer aided nutritional analysis program; 한국영양학회개발)을 이용하여 조사된 내용을 한국인 영양 권장량(Korean RDA)과 비교하였다. 혈청 철, 혈철 페리틴, TIBC, TS, 헤마토크리트 그리고 헤모글로빈 등 철 영양상태에 대해 분석하였다. 연구결과 식이를 통한 하루 영양소 섭취량은 preseason보다 season동안에 남녀 선수 모두 높았으며, 남자선수에 비해 여자선수의 철 섭취량이 양호하였다(p<0.05). Preseason 중에 철 섭취량은 권장량의 63.7%로 낮았으며, season 중에는 권장량의 93.6%로 권장량고 거의 유사하였다(p<0.01). 끼니별 영양소 섭취 비율에서 preseason과 season 동안 아침, 점심, 저녁식사와 간식을 통한 영양소 섭취 비율은 남자선수의 경우는 양호하였으나, 여자선수의 경우 아침식사를 통한 영양소 섭취비율이 낮고 간식을 통한 영양소 섭취비율이 높아 바람직하지 못하였다. Preseason과 season 동안 동물성 식품과 식물성 식품을 통한 철의 섭취 비율은 남녀 모두 식물성 식품에서 2/3정도 섭취하고 있어, 연구대상자의 철의 주요 급원은 식물성 식품으로 나타났다. 전체 대상자의 heme 철과 nonheme 철 섭취량은 preseason 보다 season 동안이 2배정도 높았으나(p<0.05), 가상적인 철 흡수율은 season에서 낮았다. 이는 preseason에 비해 season에서 철 유용도가 낮은 식사를 하는 비율이 높았기 때문으로 생각된다. 혈청 철 농도와 transferrin 포화도는 preseason 보다 season에서 높았으나(p<0.05), ferritin을 제외한 혈청 철 영양 상태 분석 지표는 두 기간간에 차이가 없고 대부분이 정상범위에 속해 있었다. Preseason과 season에서 전체 대상자의 혈청 ferritin 농도와 혈청 중의 다른 철 영양 상태를 나타내 주는 지표들간의 상관관계는 혈청 ferritin 농도와 혈청 TS간에는 유의적인 양의 상관관계가 있었으나(p<0.05), 다른 지표간에는 유의성이 나타나지 않았다. 빈혈 발생 요인은 preseason에서 혈청 ferritin 44.4%, 철 농도 50%, TS 44.4% 그리고 Hb 13.3%, Hct 6.7%로 나타났으며, season에서는 33.3%, 25.0%, 25.0% 그리고 8.3%, 8.3%로 각각 나타났다. 연구 대상자의 식이를 통한 철 섭취량은 preseason에서는 불량하고 season에는 양호하여, 두 기간간에 차이가 있어 철 영양섭취가 평소에 고르게 이루어지지 않고 있음을 보여주었다. 그러나 season의 경우에도 철 유용도를 높일 수 있는 MPF나 비타민 C의 섭취가 적절히 이루어지지 못해, 철 흡수율을 떨어뜨릴 수 있는 등 철 섭취의 질적인 문제도 인식할 수 있었다. 따라서 preseason과 season의 구분 없이 철의 양적, 질적인 섭취를 고려한 균형 잡힌 식사와 함께, 개개인의 체력에 맞는 적절한 운동량 조절이 이루어져야 할 것이다. 또한 남녀 대상자 모두 흡수율이 낮은 nonheme 철을 주로 섭취하고 있으므로 육류의 붉은 살코기, 가금류 및 생선류 등을 주로 섭취하고 철의 흡수율을 높이는 데에 기여하는 비타민 C의 섭취도 충분히 해야할 것이다. 아울러 운동선수의 합리적인 영양관리를 위한 영양교육과 체력에 맞는 운동조절이 함께 이루어져야 카누선수들의 빈혈 발생률을 줄일 수 있을 것이다. Kim, J. S., Kim, S. H. and Kwon, Y. H. A Study on the Nutrition Status of Iron among Teenage Canoe Players in Korea Exercise Science, 11(2): 535-550, 2002. This study was carried out to compare the nutrition status of iron(Fe) among teenage canoe players in Korea between the periods of preseason and season, based upon dietary nutrient intakes and serum indices of Fe nutrition status. Subjects were composed of 18 and 12 students including male and females, in preseason and season, respectively. Blood was collected for all subjects after 15 hour fasting in preseason and in season, respectively. Serum Fe concentration, ferritin concentration, total Fe binding capacity(TIBC), transferrin saturation(TS), hematocrit(Hct) and hemoglobin(Hb) values were determined. As a result, dietary nutrient intakes were lower in preseason than in season. Daily dietary Fe intake of subjects was 63.7% during preseason, and that was 93.6% of the Korean PDA during season; thus Fe intake was significantly lower in preseason than in season (p<0.01). However, apparently absorption ratio of Fe was higher in preseason than in season as food source of iron tended to be better in preseason than did in season. Serum Fe concentration and TS were significantly lower in preseason than in season (p<0.05), other indices of serum Fe nutrition status were not different between in two periods except serum ferritin. Serum ferritin and TS had significantly positive correlation in two period (p<0.05),respectively. For the prevalence of anemia in preseason, 44.4%, 50.0%, 44.4%, 13.3% and 6.7% by determining serum ferritin concentration, Fe concentration, transferrin saturation, Hb and Hot, respectively. In case of season, the prevalence of anemia evaluated by serum ferritin, Fe concentration, transferrin saturation, Hb and Hct was 33.3%, 25.0%, 25%, 8.3% and 8.3%, respectively. As a consequence, canoe players should increase the intakes of foods containing heme-Fe such as red lean meat and also increase intake of vitamin C as an increasing factor of bioavailability of vitamin C in order to prevent the sport anemia by enhancing the nutrition status of Fe, and they should manage their meals evenly through preseason and season.
DVFS Algorithm Exploiting Correlation in Runtime Distribution
김정수,유승주,경종민 대한전자공학회 2009 Journal of semiconductor technology and science Vol.9 No.2
Dynamic voltage and frequency scaling (DVFS) is an effective method to achieve low power design. In our work, we present an analytical DVFS method which judiciously exploits correlation information in runtime distribution while satisfying deadline constraints. The proposed method overcomes the previous distribution-aware DVFS method [2] which has pessimistic assumption on which runtime distributions are independent. Experimental results show the correlation-aware DVFS offers 13.3% energy reduction compared to existing distribution-aware DVFS [2].
표류하는 개인들의 사회 ― 자장커의 『천주정』에 대한 한 독법
김정수 한국중국현대문학학회 2017 中國現代文學 Vol.0 No.82
This paper explores social violence that is rampant in a materialist China by reading A Touch of Sin(天注定) by Jia Zhangke, one sixth generation filmmaker. The four episodes that this film contains are based on four real violent incidents that took place from 2000 to 2010 in China. The film focuses on describing how those incidents occurred over time rather than showing the results they brought about. In this way, complicated issues around the incidents, structural, institutional, cultural and social, are successfully identified. More interestingly, A Touch of Sin adds a new perspective of looking at the issues by reinterpreting those incidents in a martial art style(武侠). All the problems that the globe is currently facing, such as economic polarization, a pervading mood of lethargy, the instability caused by massive displacement, hatred, loss of direction, financial capitalism being globalized, and so on, get refracted, vivid, and fixed in the unique context of China. The four main characters of the four episodes of the film, after failing to keep track of social changes since the Chinese economic reform, pursue extremist measures which disclose the reality in China since the reform. In detail, each character represents: 1) the economic polarization and lethargy caused by the household contract responsibility system(家庭联产承包责任制) which is still far from perfect, 2) loss of identity and a confusion in values due to the massive domestic displacement, 3) a new theory of success which sees possessing women as a measure of success (which means the regression or destruction of gender norms), and 4) the structural and extremist violence produced by the cartel of the central government, the local governments, and the global capitalism which takes it as natural to isolate and disregard the migrant workers.
김정수 질병관리본부 2014 Osong Public Health and Research Persptectives Vol.5 No.1
Objectives: The purpose of this study was to describe and understand the lifestyles of non-obese female college students with high body fat (HBF). Methods: The interview data were collected from 18 female students [body mass index (BMI) <23 kg/m2 and body fat ratio ≥30%] and analyzed by using descriptive phenomenology of Colaizzi. The procedural steps described the phenomenon of interest, collected participants’ descriptions of the phenomenon, extracted the meaning of significant statements, organized the meanings into clusters, wrote exhaustive descriptions and then incorporated data into an exhaustive description. Results: The results in 153 restatements, 36 constructed meanings, 22 themes, seven theme clusters, and three categories were deduced. The three categories were: diminished daily concerns of health, changes in living habits by stressors, and perceived unbalance in health. Conclusion: This study describes non-obese female university students’ experiences with HBF and their lifestyles. The findings have important implications for health promotion for non-obese female university students with HBF and must be considered when developing education courses for preparing adults.
신라시대 목탑의 전래에 관한 연구 : 찰주와 심초석을 중심으로
김정수 대한건축학회 2004 대한건축학회논문집 Vol.20 No.7
This study was to examine the central foundation stone of wooden pagodas in Kyongju. In order to enshrine the Sarrira of Buddha, it was used for the building the pilla at the floor of wooden pagodas in Shilla period. Therefore, the style of the major pilla was built at the floor of the wooden pagodas, this style has been changed by a central foundation stone. The wooden- frame assembled style of multi- story pagodas had been changed by the central foundation stone. As a result, it was found that the style of wooden pagodas has been changed tranditionally in Shilla period.
김정수,노시태,권정옥,이정혜 한국고분자학회 2015 Macromolecular Research Vol.23 No.1
Sequential anionic polymerizations of styrene and methyl methacrylate and 2-vinylpyridine in tetrahydrofuran(THF) were conducted in a plug flow reactor system with a static mixer. Polymers [polystyrene (PS), Mn:120×103 g·mol-1, Mw/Mn: 1.08), poly(methyl methacrylate) (PMMA, Mn: 28×103 g·mol-1, Mw/Mn: 1.09), poly(2-vinylpyridine)(P2VP, Mn: 53×103 g·mol-1, Mw/Mn: 1.08), and PS-b-PMMA (Mn: 117×103 g·mol-1, Mw/Mn: 1.12)] with aprecisely controlled high molecular weight were obtained using a 1,1-diphenylhexyllithium initiator in a plug flowreactor system. PS-b-PMMA, PMMA, and P2VP were obtained in the presence of LiCl. The molecular weight distribution,which was related to the mixing efficiency of the static mixer, decreased with increasing flow rate. Additionally,the molecular weight of the polymers could be adjusted by varying the flow rates.