• 제목/요약/키워드: Held group

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노지고추 및 배 재배 농업인의 방제작업 중 Chlorpyrifos, Chlorothalonil 노출에 관한 연구 (Exposure Assessment of Korean Farmers While Applying Chlorpyrifos, and Chlorothalonil on Pear and Red Pepper)

  • 강태선;김길중;최인자;권영준;김경란;이경숙
    • 농촌의학ㆍ지역보건
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    • 제29권2호
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    • pp.249-263
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    • 2004
  • 본 연구에서 시험한 두 가지 농약에 대한 피부노출 측정 및 분석방법을 시험하였고 두 가지 농약에 대한 측정 및 분석방법으로써 모두 적정함을 확인하였다. 두 가지 농약에 대하여 호흡노출의 측정 및 분석법에 관한 타당도를 시험한 결과 본 연구방법으로 chlorpyrifos는 만족하였고 chlorothalonil의 경우 피부노출 측정 및 분석법만 타당하였다. 이와 같이 확정한 노출 측정방법으로 배 방제작업과 노지고추 방제작업시 농약노출량을 측정하였고 여러 가지 요인별로 비교하였나 두 가지 농약에 대하여 각 작목, 살포시기, 노출평가(피부,호흡기)와 작업용 변수로하여 노출평가를 실시하였다. 피부노출량은 과수 동력분무기, 노지고추 동력분무기 > 과수 SS기 > 동력분무기 보조의 순서로 나타났다. 과수 동력분무기와 노지고추 동력분무기 살포간 노출량의 차이는 유의하지 않았다. 과수나 노지고추의 방제만을 볼 때 다른 요인보다는 살포기기가 피부노출에 영향을 주는 주된 요인인 것으로 파악된다. 피부노출에서 작목은 주로 노출부위에 영향을 주는 것으로 평가되었다. 보조작업의 경우 손노출이 66%로 가장 높게 나타났다. 호흡기노출량은 각각의 노출이 서로 다르다고 할 수 없었다. 위험도 평가결과 chlorpyrifos 살포작업은 위험한 것으로 나타났으며 노출농도를 약 1/5 이하로 감소시킬 필요가 있는 것으로 밝혀졌다.

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The Crystal and Molecular Structure of Bromhexine$\cdot$HCl

  • Koo, Hung-Hoe;Jung, Yong-Je;Lee, Soon-Won
    • Archives of Pharmacal Research
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    • 제7권2호
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    • pp.115-120
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    • 1984
  • The crystals of bromhexine-HCl, $C_{14}$ H$_{21}$ N$_{2}$Br$_{2}$Cl, are orthohombic, space group Pca2 with a = 14.598(2)A, b=12.461(3)A, c =9 9.186(1) A and Z = 4. Intensity dat for 967 reflections (Fobs > 6.sigma.(F)) were collected on a Rigaku-Denki automatic four circle diffractometer. The structure was solved by the Patterson and Fourier methods. Refinements were carried out to the final R value of 0.082. The cyclohexane ring has a normal chair form and the benzene ring is planar. There are three independenet hydrogen bounds in the structure. One is an intermolecular hydrogen bond (N-H... Cl) and the others are intramolecular hydrogen bonds (N-H...Br, N$^{+}$-H...Cl$^{[-10]}$ ) Apart from the hydrogen bounding system the molecules are held together in the crystal by van der Waals force.e.

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메밀의 Rutin 및 기능성 물질의 종류와 변이 (Rutin and Functional Ingredients of Buckwheat and Their Variations)

  • 최병한;김선림;김성국
    • 한국작물학회지
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    • 제41권spc1호
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    • pp.69-93
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    • 1996
  • In Korea, buckwheat has historically held a very important position because it has been used as a food and traditional medicine. The objectives of this report were to mainly review the up to present papers includings 75 references about buckwheat's rutin, functional ingredients and their variations. Buckwheat provides an abundance of such nutrition as protein, amino acids, vitamin($B_1,\;B_2$, E, P), minerals(Fe, Zn, Mn, Mg, P, Cu, Ca, Se) and dietary fiber. Buckwheat's essential amino acid, lysine, is notably higher amount than cereals. Rutin(vitamin P), one of a group of flavonoids, is abundant in buckwheat and noted for its beneficial function of reducing every kinds of radiation and vascular diseases, diabetes mellitis and retinal hemorrhage, etc. Rutin also acts as a pigment stabilizer and acetone extracts of buckwheat have a potent tyrosinase inhibitory activity.

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한국 성인의 근력 평가에 대한 연굴 - 견부 주위근 중심으로 - (Evaluation of Muscle Strength in Korean Adults -center of shoulder muscle group -)

  • 이인학;이현경
    • The Journal of Korean Physical Therapy
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    • 제10권1호
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    • pp.99-104
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    • 1998
  • The purpose of this study was evaluate a isometric shoulder mused strength of normal college student in two groups. 40 college student between the age of $20,47\pm1.96$, weight of $58,50\pm6.78Kg,\;height\;of\;161.87\pm4.91Cm$ were studied. Isometric shoulder strenght was measured by Nicholas hand-held dynamometer far Boxers, extensors, abductors, adductors, external rotators. and internal rotators of shoulders. Testing was Performed with the subject supine according to the modified Bohannon's method and Jae-Wok Kim's method.

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Breeding of Near Isogenic Lines of Silkworm (Bombyx mori L.)

  • Li, Muwang;Xu, Anying;Hou, Chengxiang;Zhang, Yuehua;Huang, Junting;Guo, Xijie
    • International Journal of Industrial Entomology and Biomaterials
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    • 제6권2호
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    • pp.207-210
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    • 2003
  • Four different backcrossing methods were designed and 23 near isogenic lines (NILs) of 22 linkage groups were obtained using Hb as recurrent parent, the mutant gene lines which held markers as donor parents. Eleven of them had been mated with the recurrent parent for 10 times, and the others for 7∼8 times. The NILs of other 6 linkage groups are under way and had been backcrossed to the recurrent for 3∼4 times. These NILs will act important roles in the construction of molecular linkage map and gene location and positional cloning.

Hand arm vibration measurement using micro-accelerometer in different brick structures

  • Gomathi, K.;Senthilkumar, A.;Shankar, S.;Thangavel, S.;Priya, R. Mohana
    • Smart Structures and Systems
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    • 제13권6호
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    • pp.959-974
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    • 2014
  • Hand-Arm Vibration Syndrome (HAVS) is a group of diseases caused by exposure of the hands to vibration while operating the hand held power tools such as road breaker, drilling machine, demolition hammer in construction works. In this paper, area-changed capacitive micro-accelerometer is designed to measure the vibration exposure on worker's hand when operating a drilling machine on various blocks such as clay block, paver block and solid cement block. The design process includes mathematical modelling of micro-accelerometer and simulations are done using INTELLISUITE 8.6. Experimental results are taken for various blocks surfaces using conventional and micro-accelerometer. Comparisons show that usage of area-changed micro-accelerometer for Hand-arm vibration monitoring provides better sensitivity, which in turn reduces the risk of HAVS in workers.

박물관 교육 프로그램이 유아의 자아존중감 및 미술능력 향상에 미치는 효과 (The Effectiveness of a Museum Education Program : Enhancing Self-Esteem and Art Ability in Young Children)

  • 서영숙;김진숙
    • 아동학회지
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    • 제26권2호
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    • pp.135-147
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    • 2005
  • Twenty-five 6- and 7-year-old children participated in the museum education program held at two museums attached to Sookmyung Women's University in Seoul, Korea. Each museum was named in honor of a great artist; i.e. Moon, Shin and Jung, Youngyang and his/her artistic works. The main museum education activities included guided observation, discussion, and expressive activities using various materials. It consisted of eight sessions of about two hours each. Results showed that the self-esteem and artistic ability of children that participated in the museum education program increased more than the control group. These results affirmed the value of museum education for young children.

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경주 광명동유적 건물지의 성격에 대하여 (Study on the character of architecture remains in Gwangmyeong-dong site, Geongju)

  • 김광수
    • 건축역사연구
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    • 제23권5호
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    • pp.37-45
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    • 2014
  • It was identified by the excavation that architecture remains were confirmed buddhist temple consist of ruins of main building of a temple, auditorium site, ruins of stone pagoda, embankment, pedestrian Facilities and drainage etc. in the Gwangmyeong-dong site. The site has been held temple arrangement with 1 main building of a temple, twin Pagodas from the Unified Silla period to Goryeo dynasty. The temple constructed after that was destroyed the architecture in the Unified Silla period. It seems that aristocrat or royalty power of within group of the nearby remains of city which was constructed in the Unified Silla period build and visit the temple. Considering there are excavations, it assumes that the temple had been constructed during the last days of the Unified Silla, was closed up during the mid-Goryeo Dynasty.

ISO/WD 18233 - 건축음향에서의 새로운 측정방법의 적용 (Report on the Research of ISO/WD 18233 - Application of new measurement methods in building acoustics)

  • 국찬;김선우
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2003년도 추계학술대회논문집
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    • pp.851-856
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    • 2003
  • The study on the new measurement method of room acoustics is now in process in the ISO TC43/SC2/WG24 New standard(WD 18233) is dealing with the MLS, swept sinusoidal signal and impulse. This working group is composed of more than 20 specialists in 10 countries and the convener is professor J.H.Rindel in technical university of Denmark. The meeting of WG24 was held in the DIN, Berlin at 23rd. this september and the results was sent to the secretary of ISO TC43/SC2 for the circulation. Brief information of ISO/WD18233 and the result of this meeting is given here.

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The crystal and molecular structure of $\gamma$-hydroxy-.$\beta$-amino butyric acid

  • Kim, Yang-Bae
    • Archives of Pharmacal Research
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    • 제8권1호
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    • pp.1-6
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    • 1985
  • The crystal structure or $\gamma$-hydroxy-$\betha$-aminobutyric acid was determined by MULTAN system with X-ray intensity data on a diffractometer and refined by the least-squares method to an R-value 0.034 for 711 reflections. The crystals were orthorhombic, space group $P2_{1}2_{1}2_{1}$, Z = 4, with a = 10.220, b = 8.257 and c = 6.556$\AA$. The molecule takes the zwitterionic form and skeletal conformation is trans-transform. The molecules are held together by intra-and intermolecular NH-O and OH--O hydrogen bonds.

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