• Journal of Nutrition and Health
• /
• 제33권3호
• /
• pp.314-324
• /
• 2000

Evaluation of nutritional status of the elderly imposes different problem from the other age groups. It is essential to use right instrument to assess food consumption. In Korea, the food frequency questionnaire has not been applied widely to elderly people. The purpose of this study is to assess the possibility of employing a semi-quantitative food frequency questionnaire(FFQ) for the Korean elderly to estimate nutrient and/or food intakes. In this study the FFQ for the elderly was developed and validated. The subjects were 144 free-living old women aged from 65 to 90. The FFQ was designed with 4 items for cereals and 86 items for other foods and with frequency of 12 intervals. Three portion sizes were given to select : 1/2 of standard amount, standard amount, and 11/2 of standard amount. ach subject was interviewed with newly developed FFQ form and same subjects were also involved to complete 3-day diet record. Nutrient intake was calculated using software program developed by our group. The nutrient intakes by the FFQ was validated by comparing the results with 3-day diet record. The FFQ estimated significantly higher mean intakes of energy, carbohydrate, protein, fats and vitamin C than did the diet reconrds(p<0.05). Pearson's correlation coefficients between two methods ranged from 0.21 for vitamin Q to 0.69 for alcohol(mean r=0.53). From 32% to 42% of the subjects were classified in the same quintile of nutrient intake by two methods, and 63% to 84% were classified in the same or adjacent quintile. On average, only 4% of the subjects were misclassified into extreme quitiles. The results indicate that the FFQ developed for the elderly in this study is useful for classifying individuals by rank and identifying groups at extremes of nutrient intakes.

• Nuclear Engineering and Technology
• /
• 제52권2호
• /
• pp.417-428
• /
• 2020

Investigations of the commercial aircraft impact effect on nuclear island infrastructures have been drawing extensive attention, and this paper aims to perform the safety assessment of Generation III nuclear power plant (NPP) buildings subjected to typical commercial aircrafts crash. At present Part III, the local damage of the rigid components of aircraft, e.g., engine and landing gear, impacting the steel concrete (SC) structures of NPP containment is mainly discussed. Two typical SC target panels with the thicknesses of 40 mm and 100 mm, as well as the steel cylindrical projectile with a mass of 2.15 kg and a diameter of 80 mm are fabricated. By using a large-caliber air gas gun, both the projectile penetration and perforation test are conducted, in which the striking velocities were ranged from 96 m/s to 157 m/s. The bulging velocity and the maximal deflection of rear steel plate, as well as penetration depth of projectile are derived, and the local deformation and failure modes of SC panels are assessed experimentally. Then, the commercial finite element program LS-DYNA is utilized to perform the numerical simulations, by comparisons with the experimental and simulated projectile impact process and SC panel damage, the numerical algorithm, constitutive models and the corresponding parameters are verified. The present work can provide helpful references for the evaluation of the local impact resistance of NPP buildings against the aircraft engine.

• Steel and Composite Structures
• /
• 제7권4호
• /
• pp.339-354
• /
• 2007

Arched Corrugated Steel Roof (ACSR) is a kind of thin-walled steel shell, composing of arched panels with transverse small corrugations. Four full-scale W666 ACSR samples with 18m and 30m span were tested under full and half span static vertical uniform loads. Displacement, bearing capacities and failure modes of the four samples were measured. The web and bottom flange in ACSR with transverse small corrugations are simplified to anisotropic curved plates, and the equivalent tensile modulus, shear modulus and Poisson's ratio of 18m span ACSR were measured. Two 18 m-span W666 ACSR samples were analyzed with the Finite Element Analysis program ABAQUS. Base on the tests, the limit bearing capacity of ACSR is low, and for half span loading, it is 74-75% compared with the full span loading. When the testing load approached to the limit value, the bottom flange at the sample's bulge place locally buckled first, and then the whole arched roof collapsed suddenly. If the vertical loads apply along the full span, the deformation shape is symmetric, but the overall failure mode is asymmetric. For half span vertical loading, the deformation shape and the overall failure mode of the structure are asymmetric. The ACSR displacement under the vertical loads is large and the structural stiffness is low. There is a little difference between the FEM analysis results and testing data, showing the simplify method of small corrugations in ACSR and the building techniques of FEM models are rational and useful.

• Spatial Information Research
• /
• 제20권4호
• /
• pp.69-82
• /
• 2012

본 연구의 목적은 서울시의 전통적 중심지역인 도심의 공간구조적인 특성을 파악하고, 중심부의 토지이용 패턴과 그의 특성을 분석하여 도심의 계획과 개발에 필요한 방향을 제시하는 것을 그 목적으로 하였다. 본 연구의 진행을 통해 서울시 도심의 공간구조를 현재의 시점에서 고찰함으로써 향후 수도권을 포함한 광역 대도시권의 중심지로서의 공간구조 위계와 향후 서울도심부의 역할에 대하여 계획적인 요소와 세부적인 토지이용의 실증적인 분석을 바탕으로 연구 결과를 도출하였다. 중심업무 기능이 판매, 업무, 서비스시설이었던 점을 감안하여 이를 중심으로 연구대상지내 도심의 패턴 및 특성을 정리 하였다. 첫째, 토지이용의 판매시설 분포의 특성은 종로대로변을 따라서 서에서 동으로 이동하는 가로축으로 발달하였고 퇴계로에서부터 명동, 남대문까지 가로축을 따라 높은 시설 분포율을 보이고 있다. 이는 대형 상권이 존재하기 때문으로 분석된다. 둘째, 토지이용의 업무시설 분포의 특성은 세종로와 을지로 서울시청, 서울역으로 이어지는 지역에 높은 분포율을 보였다. 이러한 분석 결과는 서울시의 도심지역 정비계획과 청계천 복원사업, 도심재창조 프로젝트 등이 업무 판매 기능을 강화 하였으며 도심지역의 쇼핑 여가 관광 기능이 확대되어 주변 상권을 활성화 하였으며, 서울의 도심의 중심성을 유지하고 있는 것으로 평가 되었다.

• Asian-Australasian Journal of Animal Sciences
• /
• 제23권11호
• /
• pp.1427-1435
• /
• 2010

The present study was conducted to examine the effect of a stair-stepped feed intake pattern on growth, feed efficiency, and meat quality of Hanwoo steers. Twenty-seven 11-month-old Hanwoo steers were randomly divided into three groups. The control group was fed according to the Korean steer feeding program, and the other two groups were fed according to an alternated feeding schedule of 3-2-4-2 months. During the first three months of the experiment, treatment group 1 (T1) and treatment group 2 (T2) were fed 20% and 30% less than the control group, respectively. For the following two months, the T1 group was fed 20% more than the control group while the T2 group was fed 20% less than the control group. In the third step, T1 and T2 groups were fed 20% and 10% less, respectively, than the control group for four months. In the last two months, T1 and T2 groups were fed 20% more than the control group. After the stair-step feeding trial, steers were fed concentrated feed ad libitum for five months. The altered feed intake pattern did not affect daily body weight gain. However, daily feed intake tended to decrease and growth efficiency tended to increase in the two treatment groups compared to the control group. Altered feed intake also affected blood metabolite levels. The serum glucose and BUN level of the T1 group increased in the first re-fed period compared to the T2 and control groups. The serum cholesterol level of the T2 group decreased in the first restricted-re-fed growth period compared to the T1 and control groups. The serum NEFA levels of the two treatment groups increased from the first restricted period compared to the controls. The serum insulin level of the T2 group increased in the last period compared to the T1 and control groups. Regarding meat yield index, the control group was significantly higher than the T2 group (p<0.05). Regarding meat yield grade, the carcass back fat thickness of the T2 group was significantly higher than the control group (p<0.05). In marbling score, the T1 group was the highest (4.9), followed by the control group (4.1) and the T2 group (4.0). These results indicate that using a stair-stepped growth pattern (T1) can contribute to improvements in growth efficiency and muscle marbling.

• Childhood Kidney Diseases
• /
• 제12권1호
• /
• pp.93-98
• /
• 2008

IgG 신병증(IgG-associated mesangial glomerulonephritis)은 전세계적으로 드물게 보고되고 있는 새로운 원발성 사구체 질환으로 1993년 Sato 등에 의해 처음으로 보고되었고 이후 1994년 Yoshikawa 등에 의해 소아에서의 10례가 보고되었다. 주로 단백뇨를 주소로 하며 현미경적 혈뇨를 동반하기도 한다. 이 질환은 조직 면역 형광 검사상 사구체 간질에 IgG의 침착을 보이는 사구체 신염이다. 이 질환은 초기에는 양성 경과를 취하는 것으로 알려졌으나 2002년 Fakhouri 등은 대부분은 양성 경과를 보이지만 일부는 말기 신부전증으로 진행함을 관찰할 수 있었으며 1례에서는 신장이식 후 이식신에서 IgG 신병증이 재발된 예도 보고 하였다. 본 증례에서는 한명은 신증후군이 동반되었고 한명은 무증상 현미경적 혈뇨만을 보였다. 이들 모두 면역 형광 현미경 소견상 사구체 간질에 IgG 침착이 주로 보였고 IgM, 보체의 침착도 보였다. 또한 전자현미경 소견상 사구체간질에 고밀도 전자 침착이 보였다. 신생검에서 면역 현미경 소견과 전자 현미경 소견으로 진단된 IgG 신병증 소아환자 2례를 경험하고 국내에서는 아직 보고된 예가 없기에 문헌 고찰과 함께 증례를 보고하는 바이다.

• 한국작물학회:학술대회논문집
• /
• 한국작물학회 2022년도 추계학술대회
• /
• pp.30-30
• /
• 2022

Philippines is the second world supplier of coconut by-products. As its first major genomics project, the Philippine Genome Center program for Agriculture (PGC-Agriculture) took the challenge to sequence and assemble the whole coconut genome. The project aims to provide advance genetics tools for our collaborating coconut researchers while taking the opportunity to initiate local capacity. Combination of different NGS platforms was explored and the Philippine 'Catigan Green Dwarf' (CATD) variety was selected with the breeders to be the crop's reference genome. A high quality genome assembly of CATD was generated and used to characterize important genes of coconut towards the development of resilient and outstanding varieties especially for added high-value traits. The talk will present the significant results of the project as published in various papers including the first report of whole genome sequence of a dwarf coconut variety. Updates will include the challenges hurdled and specific applications such as gene mining for host insect resistance and screening for least damaged coconuts (thus potentially insect resistant varieties). Genome-wide DNA markers as published and genes related to coconut oil qualitative/quantitative traits will also be presented, including initial molecular/biochemical studies that support nutritional and medicinal claims. A web-based genome database is currently built for ease access and wider utility of these genomics tools. Indeed, a major milestone accomplished by the coconut genomics research team, which was facilitated with the all-out government support and strong collaboration among multidisciplinary experts and partnership with advance research institutes.

• 한국안광학회지
• /
• 제17권4호
• /
• pp.441-447
• /
• 2012

목적: 본 연구는 주야 관측경에 사용되는 빔 분리프리즘용 $1{\times}$ 광로 연장 어댑터(optical path relay adapter) 설계 개발에 관한 것이다. 방법: 상용 C-mount 경통구조를 가지는 줌렌즈 광학계와 빔 분리프리즘을 사용하여 주간 야간용 관측경을 만들기 위해서는 줌렌즈 광학계의 상의 크기는 변하지 않으면서 결상면의 위치를 길게 늘일 수 있는 광로 연장 어댑터가 필요하다. 이에 우리는 lens module 모드를 사용할 수 있는 CodeV 프로그램을 이용하여 $1{\times}$ 광로 연장 어댑터를 설계할 수 있었다. 결과: 우리는 빔 분리 프리즘을 갖는 주야 관측경용 광로 연장 어댑터를 설계 할 수 있었는데, 이 광학계는 EFL이 -Q56.0 mm, 배율이 +1.0배, 첫 번째 렌즈에서 마지막 렌즈까지의 거리가 약 20.4 mm인 특징을 갖는 광학계가 되었다. 이 시스템의 분해능은 40% MTF 값 기준으로 30 lp/mm인 특성을 보여준다. 이 특성은 설계되어진 광로 연장 어댑터는 3세대 영상증폭관(IIT: image intesifier tubes)의 분해능을 충분히 수용할 수 있는 광학계임을 보여준다. 결론: 30 lp/mm에서 MTF 40%인 성능을 가지면서, 첫 번째 렌즈에서 마지막 렌즈까지의 거리가 20.4 mm, EFL이 -Q56.0 mm, 배율이+1.0인 광학적 특성을 갖는 광로 연장 어댑터를 설계하여 적용함으로써 우리는 상용 C-mount 결상 경통구조를 가지는 줌렌즈 광학계와 3세대 영상증폭관(IIT)과 빔 분리프리즘으로 이루어진 새로운 형태의 주야 관측경을 개발할 수 있었다.

• 한국병원경영학회지
• /
• 제22권3호
• /
• pp.61-73
• /
• 2017

Purposes : The purpose of this study is to identify factors that have effects on safety activities of hospital personnels by investigating causality between patient safety culture, job stress, safety system and safety activities of faculty and staff member who are working for oriental medicine hospital of university. Methodology : The subjects were 246 employees working in 4 oriental medicine hospitals of university in Daejeon and Chungcheongnam-do. The data were collected from January 16 to January 25, 2017 using a structured questionnaire. For data analysis, descriptive statistics, Pearson correlation coefficient, t-test, ANOVA and Duncan test with SPSS 22.0 were used. Findings : The activity score for patient safety of faculty and staff member, who were experienced at job training program after joining a company and regular training course for qualification or license, was meaningfully higher than that of group who had no job training experience. The result indicated that the higher there is level of safety culture and safety system and the lower there is work stress, the more the activity has positive effect on patient safety. The level score of awareness for safety culture of faculty and staff member in C hospital, which is facing financial crisis in business circumstances recently, showed average value of 3.29. It was significantly lower than that of the other three hospital. Also, The activity score for patient safety was markedly lower than that of the other three hospital. This result become interested in the process of linking non-financial performance and financial performance. The level score of safety activity in A hospital which obtained healthcare accreditation was remarkably higher than that of the other three hospital which didn't certify healthcare accreditation. Pratical Implications : Subjects about Q.I or patient's experience management must be included in curriculum of Oriental medicine. It is necessary to get the effect of job training program for faculty and staff member through the process of preparation for obtaining healthcare accreditation. When the hospital director is appointed, it must be considered that he/she has the ability to attach importance to analysis and management of the factors creating safety accident, and has business mindset for healthcare delivery of customer- centricity. This research showed that financial performance of hospital, which of business environment is favorable; located in metropolitan city and having large scale of hospital and quality of residence rating but low-level of safety culture and safety activity, was lower than that of general hospital situated in small and medium-sized cities. More research needs to be done for answering this result.

• 한국육종학회지
• /
• 제41권1호
• /
• pp.56-60
• /
• 2009

"대양"은 우리 나라에서 재배가 가능한 조숙 양질 다수성 쌀귀리 품종을 육성하고자 미국의 조숙성 쌀귀리 계통인 'LX446-1-84-Q1'을 모본, 대립 겉귀리 계통인 'SO92004-B-3-3-5-7'을 부본으로 인공 교배하여 계통육종법에 의해 계통을 선발한 후 2002년부터 생산력검정시험과 지역적응시험을 거쳐 2007년에 육성된 품종이다. 그 특성은 다음과 같다. 1. "대양"은 잎폭은 넓으며, 이삭형은 산수형이고, 종실은 길고 갈색이다. 2. "대양"은 재배지 3개년 평균 출수기가 5월 8일로서, 기존 육성된 '선양'과 유사하였다. 3. "대양"은 천립중이 30.3g으로 선양의 24.5g에 비해 5.8g 무거운 대립종이며, 지역적응시험에서의 평균 종실 수량은 4,180kg/ha으로 '선양'보다 20%나 많았다. 4. "대양"은 탈부율이 높고, 조단백질 함량은 11.2%, 베타 글루캔 함량은 4.6%로서 표준품종인 '선양'과 비슷하였다.