크롬(Ⅵ)의 체내 흡수와 소실속도에 관한 연구

김현영,이성배,임철홍,이권섭,정용현,이종성,한정희,전윤석,황호순,이용묵 한국산업위생학회 2003 한국산업보건학회지 Vol.13 No.1

The CrO3 mostly used in plating. metal surface disposal, leather, cosmetic manufacturing, as an experiment material by repeatedly inhaling and exposure the male S.D. rats at a 0.00, 0.2., 0.50, 1.25 mg/㎡ concentration(particle size: 0.5-0.5 aerosol)6hours a day, 5day a week in 13weeks comparing with 2weeks, 8weeks of recovery group about the noxiousness of the experiment animal and the reduce scale of the CrO3 in the internal organ especially in blook and respiratory organ with the period of convalescent and clearance. The experiment results which we received are as follows. 1. In blood the RBC, HGB and HCT experiment, rats with 0.20, 0.50 mg/㎡ concentration showed that there were some decreases but not dependent. The kidneys absolute weight compared with control group was reduced intentionally(p〈0.05) and the lungs absolute weight compared with control group showed intentional increase(p〉0.05). 2. After the exposure of the experiment material, the whole blook, l\blood plasma and red blood cell in blood by (x): the period of convalescent, per (y); the decreasing of Cr concentration, was y=66.51 e -0.057x, y=67.2 e-0.101x, y=70.01 e-0.030 in 0.50 mg/㎡ exposure concentration by calculating the clearance coefficient of correlation, and the half life (day)was estimated 12.0, 6086, 23.0 each. 3, After the exposure of the experiment material, the experiment animals lung, liver and kidneys by(x); the period of convalescent, per (y); the decreasing of Cr conentration, was y=1808 e-0.00493x, y=12.02e-0.0297x, y=67.61 e-0.0292x in 0.50mg/㎡ exposure concentration by calculating the clearance coefficient of correlation, and the half life(day)was estimated 140.6, 23.3, 23.7, each, and including lung, liver with all of the experiment internal organs, the Cr clearance decreased as the exposure concentration increased.

심인성 색전 요인이 없는 뇌경색 환자에서 경식도 심초음파와 Acoustic Quantification을 이용한 대동맥 탄성의 평가

이종민,윤호중,임효영,박지원,김휘열,전희경,문건웅,정욱성,채장성,김재형,최규보,홍순조 대한순환기학회 2000 Korean Circulation Journal Vol.30 No.8

저선량 γ선 조사가 고추의 광합성과 광 스트레스 경감에 미치는 효과

이혜연,김재성,백명화,박순철,박연일 한국환경농학회 2002 한국환경농학회지 Vol.21 No.2

고추 종자에 저선량 γ선을 조사시킨 고추 식물체의 생육과 광합성 능 및 광 스트레스 반응에 미치는 영향을 조사하였다. 저선량 4 Gy가 조사된 고추 식물체에서 광합성에 의한 산소발생이 대조구에 비해 1.5배정도 높은 것으로 나타났다. 고추 잎에 900 μmol/㎡/s의 빛의 세기로 광저해를 4시간 유도하였을 때 최대 광합성능 (Pmax)이 대조구의 경우 20%정도 감소되는 반면 4 Gy 조사구는 3% 정도의 감소를 보였다. Fv/Fm는 광저해가 진행됨에 따라 감소되는 경향을 보이며 대조구의 경우 4시간 처리시 fv/Fm 값이 50% 정도 감소되는 것을 볼 수 있었다. 반면 4 Gy조사구는 fv/Fm값이 대략 37%정도 감소되어 대조구에 비해 광 스트레스에 대해 덜 민감한 것으로 나타났다. Fo는 광저해가 진행됨에 따라 거의 변화가 없었으며 대조구나 4 Gy 조사구 사이의 차이도 거의 없는 것으로 나타났다. 광계Ⅱ의 광양자 수율인 Φ_PSⅡ과 광계Ⅱ 반응중심에 의한 여기 포획률을 나타내주는 1/Fo-1/Fm 또한 광저해가 진행됨에 따라 감소되었으며 4시간을 처리했을 경우 각각 대조구는 47%, 4 Gy 조사구는 30%의 감소를 볼 수 있었다. 비광화학적 소멸인 NPQ는 광저해가 진행됨에 따라 감소되는 경향을 보였으나 대조구와 4 Gy 조사구간에 차이는 없는 것으로 나타났다. 이러한 결과를 볼 때 종자의 종피를 투과한 저선량의 γ선이 식물의 광합성을 증대시키고 동시에 광 스트레스에 대한 저해를 감소시키는 것으로 보인다. The effect of low dose Y radiation on photosynthesis and the reduction of photoinhibition in red pepper plant was investigated. The seedling height, leaf width and leaf length of pepper were stimulated in plants grown from seeds irradiated with the tow dose of 4 Gy. The O_2 evolution in the 4 Gy irradiation group was 1.5 times greater than in the control. To investigate the effect of low dose Y radiation on response to high light stress, photoinhibition was induced in leaves of pepper by illumination of high light (900 μ㏖/㎡/s). Pmax was decreased with increasing illumination time by 20% in the control, while hardly decreased in the 4 Gy irradiation group. The photochemical yield of PSII, estimated as Fv/Fm, was decreased with increasing illumination time by 50% after 4 hours while Fo did not change. However, Fv/Fm in the 4 Gy irradiation group was decreased by 37% of inhibition, indicating that the photoinhibition was decreased by the low dose Y radiation. Changes in the effective quantum yield of PSII, Φpsu, and 1/Fo-1/Fm, a measure of the rate constant of excitation trapping by the PSII reaction center, showed similar pattern to Fv/Fm. And NPQ was decreased after photoinhibitry treatment, showing no difference between the control and the 4 Gy irradiation group. These results showed the positive effect of low dose Y radiation on the seedling growth and the reduction of photoinhibition.

발전기 고정자 권선용 마이카/에폭시 수지의 표면 및 구조분석

이상교,심재선,정의남,송우창,박하용,심상흥,임윤희,박종국,심낙순 三陟大學校 1998 論文集 Vol.31 No.1

The purpose of this study is to determine the ageing mechanism of Mica/Epoxy composite material for large generator stator windings in order to estimate remaining life of generator. X-ray analysis is performed to investigate the position and structure of mica crystal in insulation materials. The phase change of aged and sound specimen under each atmosphere isn't observed. Surface analysis of insulation materials by optical microscope also show that the sound and aged specimen, sliding phenomenon by shear and thermal stress is observed both interface between mica and epoxy.

市中 各劇場의 空氣檢査

李貞珩,尹淳在 梨花女子大學校 藥學硏究所 1961 梨花藥學硏究 Vol.- No.2

직물디자인 분야에서 2 DPC CAD 시스템의 적용 및 운용에 관한 연구

이영희,이연순 영남대학교 지역발전연구소 1997 새마을지역개발연구 Vol.21 No.-

In this study the writers investigated the menus and functions of the 2DPC CAD system and researched the method of applying it to the textile design. The results of this study are as follow ; 1. The color palette menu is used to select colors and to give information on them. Using this menu we can select, modify, or change the colors. Further we can enter the utility menu. 2. The special option menu is useful when we operate the menu strip upward or downward. It is also useful when we cancel the input material. By using this, we can compile or modify after dividing the current image to rather small piece or fragment. Further, we can zoom to view the screen and lock or unlock the menu strip. 3. The color control section in the utility menu is applied to change, set, and copy colors. It is also applied to select color shades or background colors. 4. The disk commands of the utility menu allow us to execute function such as loading and saving disk files. The input system allows us to bring in images from the outside. The output system allows us to produce hard copy and output images on the screen. The settings menu is applied on changing environmental parameters and modifying the device used the primary input. The clear command allows us to the current space menu is applied to arrange the space of material temporally. The exit 2DPC is applied to escape from the 2DPC package temporarily.

A Study on Human Sensitivity in Design of Men's suit

이연순,박윤아,정은영 한국의류학회 2002 한국의류학회지 Vol.26 No.12

신사복 정장은 일상의 관습으로 착용되는 가장 중요한 항목으로서, 사무직, 관리직, 전문직 등의 정신 노동자들에게 폭넓게 수용되는 매우 중요한 의복항목이다. 따라서 소비자의 감성에 부합되는 신사복 개발을 위해 신사복 디자인에 대한 감성연구가 필요하다. 이에 본 연구에서는 신사복 상의 디자인 개발을 위해서 소비자의 감성에 적합한 신사복 상의를 적절하게 표현해 줄 수 있는 감성어휘를 추출하고 그 인자를 분석하였다. 요인분석결과, 7개의 요인과 67개의 감성어휘가 채택되었다. 선택된 감성어휘는 인자별로 대별하여 7개의 요인으로 묶어서 대표적인 요인명을 붙인 결과, 요인 1은 품위성 요인, 요인 2는 매력성 요인, 요인 3은 실용성 요인, 요인 4는 체형성 요인, 요인 5는 외관성 요인, 요인 6은 남성미 요인, 요인 7은 활동성 요인이라고 하였다.

2DPC CAD 시스템을 이용한 직물 디자인의 실제

이연순,이영희,권윤희 영남대학교 지역발전연구소 1998 새마을지역개발연구 Vol.22 No.-

In this study the writes investigated the menus and functions of the 2DPC CAD system and reasearched the method of applying it to textile design. The results of this study are as follows; 1. The paint box menu allows us to treat the screen as a canvas on which we paint, to edit images, rearrange, and create new images. 2. The enhancer menu offers the user commands which allow images to be modified, recolored, resized, improved, smoothed, darkened, lighted and more. 3. The recolor menu provided the user with a means of modifying the color of a continuous or non-continuous toned area so the user can recolor any portion of an image. 4. The segment menu allows u s to separate the current screen image into smaller sections, or segments, for editing and modifying only the particular sections of the image that we choose. 5. The grid menu allows the user to grid on the images for expression in three demensions. 6. The apply menu offers commands which allow the user to apply or map a pattern to any segmented image area. 7. The half drop menu allows us to take a pattern and place it into a 3x3 repeat unit, where each of the 3 × 3 elements can be modified as to spatial location. 8. The silkscreen menu allows us to create screens that are color separated and is useful for generating acetates with an output camera, which are necessary in generating silk screens. 9. The separate menu allows us to separate any image into its cyan blue, magenta, yellow and black component. 10. The collection menu allows us to ascertain that the image color printed with the output is the same as the colors on the screen. 11. The big image menu system provides a menus of creating and editing images much larger than the available 1024×768 screen size. 12. The fancy load menu alows us to rotate and scale rubber edges of any image, pattern, or ornament before the image is actually displayed on the screen.

한국어 분석을 위한 범주 문법의 확장

이미선,윤순호,한성국 圓光大學校 1992 論文集 Vol.26 No.2

자연언어 처리를 위해서는 문법체계의 설정이 선행되어야 한다. 생성문법 체계가 일반화되기 전에 범주문법 논리표현식과 자연언어의 체계를 범주에 의해서 표현할 수 있는 가능성을 제시한 것으로 많은 연구가 있었다. 최근 이와 관련하여 함수합성과 형상승규칙을 기반으로한 결합 범주 문법체계가 제시되기도 하였다. 결합범주문법은 WH-이동이나 등위구문등의 처리에 효과적인 것으로 알려지고 있으며 결합범주에 의해 구문 기능과 의미 해석을 동시에 하는 방법을 제시해 주고 있다. 함수합성은 제약적인 순서를 기반으로 하고 있기 때문에 한국어와 같이 어순이 자유로운 언어에 적용할 경우에는, 불합리한 형상승등의 문제점을 야기시키게 된다. 본 논문에서는 이러한 문제점을 해결하고 한국어 등 어순이 자유로운 언어에 적용하기 위해 가환범주의 설정을 제시한다. 가환범주를 사용하므로써 자유어순 언어의 사전구성과 함수합성 등 규칙적용을 효율적으로 할 수 있게 된다. 본 논문에서는 대표적인 한국어구문의 분석을 통해 가환범주의 언어학적 효용성과 처리방식을 보인다. The complexity of Natural Language Processing system makes the implementation of a system a research problem to find an adequate grammar system. Classical categorial grammar in the decades before generative grammar formalisms become the main stream of syntax theory, is based on the idea that the expressions of logical and natural languages can be described entirely in terms of the defined categories. One recent approach on categorial grammar called Combinatory Categorial Grammar (CCG) proposes the operations of functional composition and type-raising in analysis of noncanonical structures such as WH-dependencies and nonidentical phrase conjunction. On the assumption that syntactic categories directly reflect the semantics of the entity in a type-driven system, CCG can make it possible to combine the syntactic functions and semantic interpretation in one combinatorial category. Since the functional operations have the strict ordering properties, the adaption of the current CCG to free word order languages cannot avoid the unusual type-raising operations and will be hard to extend the domain of categories, In this paper, a commutative productive category is proposed to the current CCG for the syntactic analysis of free word order languages like Korean. The commutative productive category is quite natural for categorial lexicon and functional operations. We present the theoretical basis of productive categories and examine the linguistic implication and the processing algorithms for the typical syntactic structures of free order languages through Korean.

전용CAD 실습교육 프로그램 개발에 관한 연구 : 텍스타일 디자인 실기교육을 중심으로

이연순 한국공예학회 1998 조형디자인연구 Vol.1 No.-

Recently, CAD systems have become indispensable in field of the textile and clothing design. Therefore I would like to propose some education methods for computer-assisted textile design system. 1. Students who has studied the theory and the practical techniques of the textile design did better at computer-assisted textile design than those who hadn't, and the trend was especially noticeable in their ability to use the original menus of the CAD system. 2. Students who had studied more computer courses did better at computer- asisted textile design than those who hadn't, and the trend was especially noticeable in their ability to use the basic menus of the computer and the commen menus for graphics. 3. Students who had been educated using PC's and other CAD systems did better at computer-asisted textile design than those who hadn't, and the trend was especially noticeable in their ability to use of the original menus of the CAD system. 4. In conclusion, I would like to propose the use of a multi-step education program for a computer-assisted practice courses to enhance learning efficiency. In this program, students would start with textile design-related courses and basic computer courses, or they would take a practice course in which they would utilize PC's or other CAD systems.