국내산 및 중국산 십전대보탕 재료의 구조탄수화물과 식이섬유에 관한 연구

김기철,김지민,김대진,Kim Ki-Chul,Kim Ji-Min,Kim Dae-Jin 한국생명과학회 2005 생명과학회지 Vol.15 No.1

십전대보탕에 들어가는 한약재 10종을(국산 7종, 중국산 10종)을 수집하여 일반성분과 중성세제섬유소(neutral detergent fiber, NDF), 식이섬유(total dietary fiber, TDF; insoluble dietary fiber, IDF; soluble dietary fiber, SDF)를 분석하였다. 십전대보탕 재료 중 국내산 7종, 중국산 10종에 있어서 일반성분과 식이섬유는 국내산과 중국산간의 차이가 크지 않았다. 그러나 중성세제섬유의 경우 건조물 기준으로 국내산 $35.24\%$, 중국산 $58.64\%$로 차이가 크게 나타났다 국내산 7종의 총탄수화물(CHO)과 NDF 간에는 Y=0.32X+60.96, r=0.61(p<0.01), 총탄수화물(CHO)과 NFE간에는 Y=0.65X+32.88, r=0.76(p<0.001)로서 유의한 회귀식과 상관이 도출되었다. 그러나 총탄수화물(CHO)과 NFC간에는 Y=-0.07X+80.93, r=0.10로서 회귀식이 도출되었으나 유의성은 없었다. 중국산 10종의 총탄수화물(CHO)과 NDF간에는 Y=0.53X+49.64, r=0.69(p<0.001), 총탄수화물(CHO)과 NFE간에는 Y=0.50X+46.42, r=0.71 (p<0.01)로서 유의한 회귀식과 상관이 도출되었다. 그러나 총탄수화물(CHO)과 NFC간에는 Y=0.10X+78.21, r=0.10로서 회귀식이 도출되었으나 유의성은 없었다. 국내산 7종의 TDF와 IDF간에는 Y=0.96X+4.08, r=0.99(p<0.01), TDF와 SDF간에는 Y=-6.87X+62.97, r=0.51(p<0.01)로서 유의한 회귀식과 상관이 도출되었다. 중국산 10종의 TDF와 IDF간에는 Y=0.96X+3.14, r=0.99(p<0.01), TDF와 SDF간에 Y=-8.71X+58.96, r=0.50(p<0.01)로서 유의한 회귀식과 상관이 도출되었다. 국내산과 중국산 7종 식이섬유의 t-test 결과 TDF와 IDF는 평균이 양측검정결과 유의하게 다르지 않았으나 SDF는 평균이 유의하게 달랐지만 단측검정 결과 유의하지 않았다. This study was conducted to determine the total carbohydrate (CHO), nitrogen free extract (NFE), non fiberous carbohydrate (NFC) and ditery fiber (NDF, neutral detergent fiber; TDF, total dietary fiber; IDF, insoluble dietary fiber; SDF, soluble dietary fiber) of 17 kinds of domestic and Chinese herbs. The samples were dried at 60t for 24 hrs and ground to pass a 0.5mm screen. The contents of NFE was ranged from $85.73\%\;to\;57.57\%$, NDF was ranged from $85.72\%\;to\; 29.74\%$, CHO was ranged from $92.68\%\;to\;63.01\%$, TDF was ranged from $87.33\%$to 17.21, IDF was ranged from $86.37\%\;to\;14.56\%$, SDF was ranged from $6.06\%\;to\;0.97\%$ on domestic herbs in dry matter basis. NFE was ranged from $95.33\%\;to\;35.24\%$, NDF was ranged from $71.48\%\;to\;29.74\%$, CHO was ranged from $78.77\%\;to\; 35.24\%$, TDF was ranged from $86.43\%\;to\;16.22\%$, IDF was ranged from $85.98\%\;to\;13.04\%$, SDF was ranged from $4.13\%\;to\;0.45\%$ on Chinese herbs in dry matter. The several components of domestic and Chinese herbs were not significantly of TDF and IDF, but SDF was significantly by tow-tailed test. The correlationship of several herbs were r=0.99 between TDF and IDF (p<0.01), r=0.51 between TDF and SDF (p<0.01)on domestic herbs. The correlationship of 10 kinds herbs r=0.99 between TDF and IDF (p<0.01), r=0.50 between TDF and SDF (p<0.01) on Chinese herbs, respectively.

산업장 근로자의 근골격계 자각증상과 스트레스의 평가

김기철,박승정,장두섭,김삼태,김유철,권소희,정해경,송용선,이기남,Kim Ki-Chul,Park Sung-Jung,Jahng Doo-Sub,Kim Sam-Tae,Kim Yoo-Chul,Kwon So-Hee,Jung Hae-Kyoung,Song Yung-Sun,Lee Ki-Nam 대한예방한의학회 2004 대한예방한의학회지 Vol.8 No.1

This study was conducted to evaluated musculoskeletal subjective symptoms and the degree of stress of industrial workers to present fundamental materials of preventive oriental medicine for improving their health and quality of life. During the medical examination with oriental medicine method, presence of subjective symptoms of musculoskeletal pain, Psychosocial Well-being Index(PWI) and life style were checked by using questionnaire method in 474 industrial workers. The collected data were analyzed with crosstabs, ANOVA and T-test. The results were as follows; 1. In general differences according to musculoskeletal subjective symptoms, education level of high school graduation had significantly higher distribution than that of below middle school or above university graduation in the pain present group. 2. In the musculoskeletal subjective symptoms and the degree of stress, all of Factor1, Factor2. Factor3, Factor4. and PWI had higher score in pain present group than in pain free group and the difference was statistically significant. 3. According to degree of stress and general character of subjects, single and education level of high school graduation had high score in Factor2, Factor3 and PWI. Factor1 and Factor3 was high in income group of low 1.49 million won. Factor2, Factor4, and PWI was high significantly in income group of 1.50 - 2.99 million won. In job type, manufacturing worker group had significantly high score in Factor3. 4. In degree of stress and life style difference, there was significant difference in PWI score in the field of alcohol chinking, smoking, exercise, obesity except sleeping hours. In the present study. as a result, it is found out that musculoskeletal subjective symptoms present group had higher score in psychosocial stress across the fields than symptom-free group and it is recommended that continuous studies on the relationship of job-related musculoskeletal disorders and psychosocial stress should be performed for improvement and prevention of mental and physical health of industrial worke

화천 지역의 수문분석을 위한 SWAT 모형의 적용성 평가

김기철,김종건,박윤식,허성구,유동선,김기성,최중대,임경재,Kim, Gi-Cheol,Kim, Jong-Geon,Park, Yun-Sik,Heo, Seong-Gu,Yu, Dong-Seon,Kim, Gi-Seong,Choe, Jung-Dae,Im, Gyeong-Jae 한국관개배수위원회 2007 한국관개배수논문집 Vol.14 No.2

For sustainable development at a watershed, environment friendly site-specific management practices need to be developed and implemented. The soil and Water Assessment Tool(SWAT)model has been world-wide used to estimate stream flow, sediment, and nonpoint source pollutant loads, and effects on water quality of different management practices. In this study, the SWAT model was used to estimate the flow resources at Hwacheon areas using Digital Elevation Model(DEM),Land use, precipitation ,wind ,maximum and minimum temperature, solar radiation, humidity of watershed The R2 value and EI value for the comparison of SWAT estimated flow and measured flow were 0.87 and 0.67 respectively for calibration period, and the R2 value and E1 value for validation were 0.75 and 0.67 respectively. The comparison results show what the SWAT model is applicable to simulate hydrology behaviors at this study watershed.

면진 트러스-아치 구조물의 지진거동 분석

김기철,김광일,강주원,Kim, Gee-Cheol,Kim, Kwang-Il,Kang, Joo-Won 한국공간구조학회 2008 한국공간구조학회지 Vol.8 No.2

The various systems as the seismic resistance systems are used to reduce the seismic response of structure. And the seismic isolation system among them is the system that reduces the seismic vibration to be transmitted from foundation to upper structure. The purpose of isolation system is to lengthen the period of structure and make its period shift from the dominant period of earthquake. In this study, the seismic behavior of arch structure with lead rubber bearing(LRB) and friction pendulum system(FPS) is analyzed. The arch structure is the simplest structure and has the basic dynamic characteristics among large spatial structures. Also, Large spatial structures have large vertical response by horizontal seismic vibration, unlike seismic behavior of normal rahmen structures. When horizontal seismic load is applied to the large spatial structure with isolation systems, the horizontal acceleration response of the large spatial structure is reduced and the vertical seismic response is remarkably reduced. 지진에 의한 구조물의 응답을 저감시키기 위하여 내진, 면진, 제진 등 다양한 장치가 사용되고 있으며 그 중에서 면진장치는 구조물로 전달되는 지진에너지를 최소화하기 위한 시스템으로 그 주된 목적은 구조물의 주기를 길게 만들어 지진파의 탁월주기를 벗어나게 하는 것이다. 본 연구에서는 대공간구조물의 기본적인 동적특성을 가지고 있으며 동시에 가장 간단한 구조이기도 한 아치에 납-고무면진장치와 마찰진자면진장치를 적용하여 지진거동을 분석하였다. 대공간구조물의 지진거동은 일반적인 골조구조물의 지진거동과 달리 수평지진에 의하여 수직방향으로 큰 지진응답이 나타나고 있다. 면진장치를 대공간 구조물에 적용할 경우에 수평지진하중에 의하여 수평방향 지진응답이 저감되는 것은 물론 면진장치의 수직강성으로 인하여 수직응답도 현저하게 저감되는 것을 알 수 있었다.

바닥판 구조물의 진동제어를 위한 MR 감쇠기의 적용

김기철,곽철승,Kim, Gee-Cheol,Kwak, Chul-Seung 한국공간구조학회 2006 한국공간구조학회지 Vol.6 No.3

수동동조질량감쇠기의 진동제어 효과는 질량감쇠기와 구조물과의 동조로 인하여 나타나고 있다. 그러나 바닥판 구조물의 질량과 강성의 변화로 인하여 실제 구조물에 있어서 비동조 현상이 일어나기도 한다. 이러한 상황에서는 수동동조질량감쇠기의 성능이 비효율적이며 경우에 따라서는 구조물의 진동을 증가시키기도 한다. 본 논문에서는 기계나 사람에 의한 바닥판 구조물의 진동을 줄이기 위하여 자기유체감쇠기의 적용성을 알아보고자 한다. 준 능동제어와 groundhook 제어 알고리즘을 적용하여 준능동감쇠기의 성능과 수동질량감쇠기의 성능을 비교 분석하였다. 또한 비동조 상황에서의 준능동감쇠가와 수동질량감쇠기의 견인성을 비교 분석하여 다음과 같은 결론을 얻었다. 자기유체감쇠기는 동조상황에서 우수한 제어 성능을 가지고 있으며 비동조 상황에서도 우수한 견인성을 보여주고 있다. A conventional passive TMD is only effective when it is tuned properly. In many practical applications, inevitable off-tuning of a TMD occurs because the mass in a building floor could change by moving furnishings, people gathering, etc. when TMDs are offtuned, TMDs their effectiveness is sharply reduced. Moreover, the off-tuned nTMDs can excessively amplify the vibration levels of the primary structures. This paper discusses the application of a new class of MR damper, for the reduction of floor vibrations due to machine and human movements. The STMD introduced uses a MR damper called to semi-active damper to achieve reduction in the floor vibration. Here, the STMD and the groundhook algorithm are applied to a single degree of freedom system representative of building floors. The performance or the STMD is compared to that or the equivalent passive TMD. In addition, the effects of off-tuning due to variations in the mass of the floor system. Comparison of the results demonstrates the efficiency and robustness or STMD with respect to equivalent TMD.

데크 바닥판 구조물의 실용적인 진동해석

김기철,Kim, Gee-Cheol 한국전산구조공학회 2005 한국전산구조공학회논문집 Vol.18 No.1

장경간화되고 경량화된 데크 바닥판 구조물은 부재가 유연하기 때문에 거주자의 움직임에 의하여 진동이 크게 발생할 수 있으며, 이러한 바닥판 진동은 건축물의 안전성뿐만 아니라 건축물의 사용성에도 많은 영향을 끼치므로 건축물의 품질 평가기준으로 사용되고 있다. 데크 바닥판 구조물의 올바른 사용성 평가를 위해서는 정확한 진동해석과 응답평가가 수반되어야한다. 본 논문에서는 데크 바닥판 구조물의 직교이방성을 고려한 여러 가지 모형화 방법을 적용하여 진동해석을 수행하였으며 모형화 방법에 따른 진동응답을 비교 분석하였다. 본 논문에서 제시한 데크 골 방향 강성에 대한 등가두께 모형화방법은 간단한 방법으로 데크 바닥판 구조물의 직교이방성을 간단한 방법으로 고려할 수 있으며, 정확한 진동응답을 얻을 수 있으므로 실무에서 실용적으로 활용할 수 있다. As long-span and light-weight deck floor slab are flexible and have low inherent damping, the significant floor vibration could be induced by residents' activities. These floor vibrations affect to safety and serviceability of building structures. So the vibration criteria are applied to the quality assessment of building structure. Therefore, the accurate vibration analysis should be performed for the correct assessment of deck floor slab. In this paper, practical analysis method with considering orthotropic rigidity of deck floor is proposed tot the accurate vibration analysis of dock floor slabs with form deck plates.

연구논문 - Properties of Composites - : 얇은 적층판 CFRP 굽힘거동에 관한 연구

김기철,이재락,이주진,문한규 ( Ki Chul Kim,Jae Rock Lee,Joo Jin Lee,Hahn Gue Moon ) 대한금속재료학회 ( 구 대한금속학회 ) 1988 재료강도 심포지엄 Vol.- No.-

아치구조물 적용 인장저항 면진장치의 수치해석적 거동 분석

김기철,장명호,Kim, Gee-Cheol,Jang, Myung Ho 한국공간구조학회 2020 한국공간구조학회지 Vol.20 No.3

If an excessive displacement occurs in the base isolation system, the structure will be damaged due to overturning of the upper structure. In this study, we analyze the behavior of base isolation by applying earthquake to base isolation with anti-uplift device. In the case of structures that generate horizontal reaction forces such as arch structures, horizontal reaction forces must be considered in the design of the base isolation and structural members. And anti-uplift device for preventing the excessive displacement of the base isolation system is needed.

전통극 공연장의 건축요소(3)

김기철,Kim, Gi-Cheol 대한건축사협회 1988 建築士 Vol.1988 No.12

막재료의 난연 및 방염성능 실험에 대한 연구

김기철,최광호,Kim, Gee-Cheol,Choi, Kwang-Ho 한국공간구조학회 2016 한국공간구조학회지 Vol.16 No.2

The Membrane structure has a number of problems in the application of a fireproof code based on general buildings codes. Thus, the fireproof code of membrane structure is necessary to activate the construction of the membrane structure. Because it requires a systematic classification of fire retardant and flame proof performance of membrane material. Fire retardant and flame proof tests are conducted on membrane materials mostly used in current construction to propose the fire and flame retardant performance criteria of membrane materials. Fire and flame retardant tests results, PTFE membrane material with the glass fiber fabric have a limit-combustible performance. PVDF membrane material with the polyester fabric does not ensure the fire retardant performance, but this membrane material has the flame retardant performance of a thick fabric. Also, ETFE does not ensure the fire retardant performance, but this membrane material has the flame retardant of a thin fabric.