• 대한전자공학회논문지TC
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• 제41권12호
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• pp.125-130
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• 2004

본 논문에서는 EM field 시뮬레이션을 통한 CMOS 공정의 온-칩 직사각형 나선 구조의 인덕터 특성을 보여 주고있다. EM field 시뮬레이션을 위해서 ADS 모멘텀을 사용하였으며, 실제 검증은 하이닉스 0.35㎛ CMOS 공정을 이용하여 인덕터를 제작, 측정하였다. 이 연구에서는 일반 CMOS 공정에서의 전송선로의 넓이, 턴 횟수와 같은 기하학적인 변화에 따른 인덕터의 특성이 조사되었다. 실험과 시뮬레이션 결과는 거의 일치하였으며 5이하의 Q- factor를 가질 때 1nH에서 6nH의 인덕턴스 분포를 가지는 것을 확인할 수 있었다.

• 운동영양학회지
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• 제13권1호
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• pp.29-35
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• 2009

The purpose of this study was to investigate the effects of oral supplementation of coenzyme Q10 (CoQ10) for 4 weeks on the plasma free oxygen radical and total antioxidant capacity at resting and after one bout exercise in healthy old men. Thirty volunteers with an average (+/-SD) age of 62.59+/-5.3 years participated in this study and were divided with three groups; CoQ10 (200 mg daily) group, vitamin C & E (800mg, 400 IU daily) group, and placebo group. A cycle exercise (60% HRR) test was performed at the end of study. Blood samples were taken for the analyses at rest and pre-, post-, 30min after cycle exercise, before and after the 4 weeks of supplementation. After supplementation, there were no significant differences in the plasma free oxygen radical levels and total antioxidant capacity at resting. Plasma free oxygen radical level and total antioxidant capacity in three groups were significantly elevated after exercise, however, it did not vary significantly between groups. CoQ10 supplementation showed significant difference in total antioxidant capacity during recovery phase compared with placebo group. Our results demonstrated that supplementation of CoQ10 in healthy old men improve blood total antioxidant capacity after one bout exercise, despite no alteration of plasma free oxygen radical levels.

• 한국식품영양학회지
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• 제22권4호
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• pp.577-586
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• 2009

Aging is associated with decreased energy expenditure, thermogenesis and energy requirements. Maintenance of physical fitness of the elderly has been reported to reduce the rate at which the basal metabolic rate, muscle strength, skeletal muscle mass and bone density deteriorate. Skeletal muscle disease is known to increase the risk of physical disability and psychological problems. This study was conducted to investigate changes in disability, emotional problems, body compositions, obesity indices and nutrient intake levels according to physical fitness with the elderly in rural areas. According to the results, physical fitness was negatively related with Activities of Daily Living(ADL, p<0.05), Instrumental Activities of Daily Living(IADL, p<0.001), Body Mass Index(BMI, p<0.001) and abdominal obesity(p<0.05), while it showed a positive correlation with the General Self Efficacy Scale(GSES)(p<0.001) and nutrient intake(p<0.05). When changes in these factors were compared according to the range of quartile of the Fullerton Advanced Balance Scale(FAB Scale), GSES(Q1=35.3, Q2=43.5, Q3=53.2, Q4=51.9, p<0.001), BMI(Q1=36.1%, Q2=34.7%, Q3=33.2%, Q4=28.6%, p<0.01), abdominal obesity(Q1=1.02, Q2=0.99, Q3=0.97, Q4=0.94, p<0.001) and nutrient intake(Q1=71.1%, Q2=75.4%, Q3=80.6%, Q4=80.2%, p<0.05) differed significantly. Taken together, these results suggested that better physical fitness would lead to a reduction in negative factors including physical disability and obesity indices, but to an increase in positive factors such as GSES and nutrient intake. The results of this study are expected to be used as basic data for the development of programs to promote the health of the elderly in a local society.

• Journal of the Korean Wood Science and Technology
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• 제38권4호
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• pp.359-374
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• 2010

국내산 낙엽성 참나무류인 신갈나무, 상수리나무, 떡갈나무, 졸참나무, 갈참나무 및 굴참나무 수피의 추출성분의 구조를 규명하고 수종 상호간 성분의 특성 및 연관성 등을 조사하였다. 그 결과 신갈나무에서 화합물 2(ellagic acid, 0.03 g), 4 ((+)-catechin, 4.59 g), 6 (taxifolin, 3.35 g) 및 7 (glucodistylin, 20.52 g)을 상수리 나무에서는 화합물 1 (gallic acid, 0.18 g), 4 ((+)-catechin, 8.52 g), 5 ((+)-gallocatechin, 0.09 g), 6 (taxifolin, 0.54 g) 및 7 (glucodistylin, 3.28 g)을 떡갈나무에서는 화합물 1 (gallic acid, 0.38 g), 2 (ellagic acid, 0.11 g) 4 ((+)-catechin, 2.01 g), 5 ((+)-gallocatechin, 0.12 g) 및 7 (glucodistylin, 0.39 g)을 갈참나무에서는 2 (ellagic acid, 1.51 g), 4 (+)-catechin, 21.91 g) 및 7 (glucodistylin, 3.91 g)을 졸참나무에서는 2 (ellagic acid, 0.84 g), 4 ((+)-catechin, 0.82 g), 6 (taxifolin, 4.02 g) 및 7 (glucodistylin, 21.50 g)을 굴참나무에서는 1 (gallic acid, 0.24 g), 3 (caffeic acid, 0.05 g), 4 ((+)-catechin, 0.32 g) 및 7 (glucodistylin, 0.65 g)을 분리하여 구조를 규명하였다. 국내산 참나무속 6 수종의 수피에서는 화합물 4 ((+)-catechin)와 7 (glucodistylin) 이 공통적으로 분리되었으며 두 성분 중 함유량이 상대적으로 높은 glucodistylin은 참나무류 수피의 지표성분 으로 이용될 수 있을 것이다.

• 한국조경학회지
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• 제17권3호
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• pp.35-47
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• 1990

This study was executed to analyze the vegetational landscape structure and administration planning of Heonin Royal Tomb forest by three kinds of ordination techniques (PCA, RA and DCA) and comparison of the couple photographs between 1920s and 1980s. Seventeen sites in the recreation area and fifteen sites in the protective area were sampled with clumped sampling method in June 1988 and five quadrats were examined in each site. Environmental impact grade 3, 4 and 5 area covered 56.4% of the surveyed area and these area should be restored by the input of human energy. Pinus densifora community of actual vegetation covered 8.4%, Alnus japonica 24.2% and Quercus community 40.9% of the total area. And the afforested vegetation of Pinus koraiensis and Pinus rigida covered 23.1 % The recreation area was divided by P. densiflora, P. densiflora-Quercus aliena, A. japonica-Q.aliena, A. japonica and the protective area by Q. acutissima, Q. aliena, A. japonica-Q. aliena.. DCA ordination showed that successional trends of tree species seem to be from P. densiflora, Sorbus alnifolia, Styrax obassia to Q. variabilis Q. serrata in P. densiflora community and from A. japonica through A. ginnala to Q. aliena in A. japonica community of the upper layer. By the comparison of the couple photographs between 1920s and 1980s, we can recognize the change of historical landscape composed of P. densiflora community and those community is succeeded to Q. aliena.

• 한국해양바이오학회지
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• 제2권3호
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• pp.198-200
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• 2007

Cultivation of a $Q_{10}$-producing photosynthetic bacterium, Rhodobacter sphaeroids, was carried out in a 1-L flask to characterize its cellular growth reaction. The result of experiment showed that dissolve oxygen in the broth was depleted within 7 h. ORP decreased with decrease of DO, and recovered somewhat with increase of pH. The growth of R. spahaeroids reached at late-log phase in 140 h of reaction. The final pH and dry-cell weight were 7.62 and 2.2 mg/mL, respectively. The $Q_{10}$ content in the final broth was 2.35 mg/g dry cell weight, which was higher than that obtained in tube culture.

• 대한수학회지
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• 제35권2호
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• pp.423-432
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• 1998

Let p, q be integers such that 2 $\leq$ p, q $\leq$ n, and let $D_{p, q}$ denote the matrix obtained from $I_{n}$, the identity matrix of order n, by replacing each of the first p columns by an all 1's vector and by replacing each of the first two rows and each of the last q-2 rows by an all 1's vector. In this paper the permanent minimization problem over the face, determined by the matrix $D_{p, q}$, of the polytope of all n $\times$ n doubly stochastic matrices is treated.d.

• 성인간호학회지
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• 제28권5호
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• pp.501-513
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• 2016

Purpose: The purpose of this study was to identify attitudes of male baby boomer toward holistic health using Q-methodology. Methods: Q-methodology is analysed through the subjectivity of each type of attitudes. Thirty-five q-statements were selected from a total of 145 statements. These statements were categorized into six areas (Physical, psychological, spiritual, work and leisure, love and friendship, culture). The recruited P-sample consisted of thirty-four male baby boomers from one town and two cities. The 35 selected Q-statements from each of 35 participants were classified into the shape of a normal distribution using a 9-point scale. The collected data were analysed using the PQMethod Program 2.11. Results: Four types of male baby boomer attitudes towards holistic health were identified. The first is a relationship oriented-marital relationship oriented type, the second type is an economic oriented- job seeking type, the third type is a nature friendly oriented-independent living type, and the fourth type is health oriented-physical health seeking type. Conclusion: The results of this study indicated that different approaches to holistic health promotion program could be developed based on the four types of holistic health attitudes among baby boom generation males in Korea.

• Journal of Hospice and Palliative Care
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• 제17권4호
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• pp.278-288
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• 2014

목적: 의료가 복잡하고 전문화된 최근에는 의료학문간 소통과 융합이 강조되고 있다. 병원업무는 환자를 중심으로 여러 분야의 협동 체계를 통한 의사결정의 효율성이 요구된다. 이 논문은 말기 환자에 대한 의사와 간호사의 공유 의료적 의사결정에 대한 인식을 알아보고자 한다. 방법: Q 방법론을 적용하여 35개의 Q 진술문을 9점 척도의 정규분포로 39명에게 작성하도록 하였다. 수집된 자료는 QUANL PC 프로그램으로 분석하였다. 결과: 환자결정형, 의사결정형, 의료인 공유결정형, 환자 가족 결정형의 네 가지 유형으로 나타났다. 공통적으로 동의한 항목은 충분한 설명과 치료과정의 공유, 교육 등으로 나타났고, 부정적으로 생각한 항목은 치료에 법적 측면을 고려에 대한 내용이었다. 제1유형은 환자의 요구와 가치관을 존중하는 환자중심의 의사결정 방식을, 제2유형은 의사가 결정을 내리고 환자가 이를 따르는 방식을, 제3유형은 의료인 상호간의 협력적인 의사 공유를, 제4유형은 의료인뿐 아니라 가족 참여의 의사결정을 중요하게 생각하였다. 결론: 의료인 간의 생각이 다양하다는 것을 보여주며, 일반인과도 의견의 차이를 보여준다. 의사결정에 대한 의견의 공유와 추가적인 연구가 필요할 것으로 생각된다.

• 한국항공우주학회지
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• 제35권4호
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• pp.347-352
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• 2007

논문에서는 과학기술위성 2호용으로 개발된 탑재체데이터 수신시스템(Data Receiving Equipment, DRE)을 소개하고 개발된 준비행모델(Proto Flight Model, PFM)에서의 기능 및 성능 시험 결과를 제시 한다. 탑재체데이터 수신시스템은 X 대역 수신기, 데이터 합성장치(Data Combine Equipment, DCE)와 수신 저장 컴퓨터(Receiving and Archiving Computer, RAC)로 구성되어 있다. DCE는 I&Q 신호 합성기와 ECL 신호 분배기로 구성 된다. RAC은 데이터 수신 카드(Data Receiving Card, DRC)와 소프트웨어인 ST2RAS(STSAT-2 Receiving and Archiving Software, ST2RAS)로 구성된다. X 대역 수신기를 통해서 수신된 I, Q 데이터는 DCE를 통해서 I&Q 데이터로 합성된다. 합성된 데이터는 데이터 수신 카드를 통해서 수신 저장 컴퓨터의 RAID(Redundant Array of Inexpensive Disk)에 저장되고, 이 데이터는 ST2RAS의 전처리를 통해서 위성의 상태 정보와 탑재체 정보로 분리된다. 탑재체데이터 수신시스템에 대한 기능 시험과 열진공 시험을 통해서 10-6 의 BER(Bit Error Rate) 요구사항을 만족하는 결과를 확인하였다.