• 제목/요약/키워드: Yellow effect

검색결과 920건 처리시간 0.029초

황해.동중국해의 겨울철 취송 순환에 대하여: Part I. 조류에 의한 저면 마찰력의 영향 (On the Wintertime Wind-driven Circulation in the Yellow Sea and the East China Sea : Part I. Effect of Tide-induced Bottom Friction)

  • 이종찬;김창식;정경태;전기천
    • Ocean and Polar Research
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    • 제25권spc3호
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    • pp.361-371
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    • 2003
  • The effect of bottom friction on the steady wind-driven circulation in the Yellow Sea and the East China Sea (YSECS) has been studied using a two-dimensional numerical model with and without tidal forcing. Upwind flow experiment in YSECS has also been carried out with a schematic time variation in the wind field. The surface water setup and circulation pattern due to steady wind forcing are found to be very sensitive to the bottom friction. When the effects of tidal currents are neglected, the overall current velocities are overestimated and eddies of various sizes appear, upwind flow is formed within the deep trough of the Yellow Sea, forming a part of the topographic gyre on the side of Korea. When tidal forcing is taken into account, the wind-induced surface elevations are smoothed out due to the strong tide-induced bottom friction, which is aligned almost normal to the wind stresses; weak upwind flow is farmed in the deep trough of the Yellow Sea, west and south of Jeju. Calculation with wind forcing only through a parameterized linear bottom friction produces almost same results from the calculation with $M_2$ tidal forcing and wind forcing using a quadratic bottom friction, supporting Hunter (1975)'s linearization of bottom friction which includes the effect of tidal current, can be applied to the simulation of wind-driven circulation in YSECS. The results show that steady wind forcing is not a dominant factor to the winter-time upwind flow in YSECS. Upwind flow experiment which considers the relaxation of pressure gradient (Huesh et al. 1986) shows that 1) a downwind flow is dominant over the whole YSECS when the northerly wind reaches a maximum speed; 2) a trend of upwind flow near the trough is found during relaxation when the wind abates; 3) a northward flow dominates over the YSECS after the wind stops. The results also show that the upwind flow in the trough of Yellow Sea is forced by a wind-induced longitudinal surface elevation gradient.

황해의 역풍류 형성에 미치는 산동반도의 영향 (Effect of Shantung Peninsula on the Development of Mean Upwind Flow in the Yellow Sea)

  • 승영호
    • 한국해양학회지
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    • 제30권6호
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    • pp.537-542
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    • 1995
  • 간단한 모델을 이용하여 겨울철 황해에서 역풍류 형성시 산동반도가 미치는 영향에 대하여 고찰하였다. 모델결과, 산동반도의 영향은 만 전체에 걸쳐 나타나는 반면 반대측(한국연안)의 작은 반도들에 의해 생길 수 있는 가능한 영향은 그 규모가 너무 작아서 무시될 수 있는 것으로 나타났다. 산동반도의 영향으로 만의 골을 따라 흐르는 역풍류는 서쪽으로 편향하게 된다.

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광.열경화 prepreg 제조 연구(I) (Manufacture of Prepreg with Photo-curing System)

  • 김영근;신동혁;김영민;박종만;이재락
    • 한국복합재료학회:학술대회논문집
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    • 한국복합재료학회 2003년도 춘계학술발표대회 논문집
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    • pp.192-195
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    • 2003
  • UV curing technology becomes important in various sectors of applications due to the high efficiency, environmental protection and saving energy. Above all, It is necessary to consider the formulation of glass fiber sizes in some detail to achieve this study since they are governed by the products to be made and their performance in the composites made form them. The effect of glass fiber sizes against UV curing system was investigated by the method of changing size formulation. Nanosil 700 was used in order to increase curing efficiency. Yellow effect was not observed at the 1% fiber sizer content.

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식품색에 대한 대학생의 기호도에 관한 조사연구 (Examination into Favorable Taste of College Students on Food Colors)

  • 황춘선;박모라;신영자
    • 한국식품조리과학회지
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    • 제8권4호
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    • pp.387-396
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    • 1992
  • This study was conducted to examine the favorable taste of food color for one month of November 1991 With 200 college students consisting 100 male and 100 female students. The color to examine the favorable food was based on Munsell color standard of ten colors such as F. Birren seven colors (red, orange, yellow, yellowish green, green, blue and violet), brown, pink and black. And then, the data of this study was analysed by using frequency(%), mean values, standard deviation, t-test, Chi-square, Spearman correction with SAS Package on the basis of 100% collection and reliable coefficient alpha= .775. The result of this study is summarized as follows. 1. It was shown that the male college students (59%) showed remarkable interest in the food color higher than that of female college students (92%), and that 85% of male students and 97% of female students considered that the food color has an effect on appetite. In addition, the food name having an effect of the food color on appetite appeared in such order as carrot (13.0%), apple (10.9%), spinach (7.0%), cucumber (6.0%) and red pepper (5.6%). The important factor in choosing the favorable food was the taste for both male and female college students, while the male and female students considered the food color as the 4th, respectively, and the 3rd important factor in choosing the favorable food. 2. The favorable food color appeared in order such as orange, red, yellow, yellowish green, green, blue, violet, pink, black and brown colors for the male college students, and in order such as red, orange, yellow, green, yellowish green, brown, violet, black, pink and blue. Also, there was difference between the male and female college students in such colors as brown, yellowish green, blue and pink. It was also shown that there was no relation between the male and female college students in examining the order of favorable food colors and general colors when selecting null hypothesis (ASE: .405). The food name associated with the color was apple for red color, orange for orange color, coffee for brown color, banana for yellow color, lettuce for yellowish green color, spinach for green color, mackerel for blue color, eggplant for violet color, sausage for pink color and bean for black color 3. The favorable color combination of both male and female college students showed red with green, orange with yellow, yellow with green, green with yellow, pink with violet and black with black. In addition, the favorable combination of the male college students indicated brown with black, yellowish green with orange, blue with red and violet with yellow while the female college students did brown with yellow, yellowish green with green, blue with yellow and violet with pink. The favorable combination color showing difference between the male and female college students included orange, brown, violet, pink and black colors. 4. The relation between the food color and terms of favorable taste showed that “light and mild color” is yellow, that “untasty color” is black, that “sourish and puckery color” is orange, that “bitter color” is violet, that “hot color” is red, and that “fresh color” is green which were answered by both male and female college students. However, the male and female college students considered yellow, respectively, and orange as “tasty color”, and black and yellow, respectively, as “sweet color”. Then, the taste term showing difference between male and female college students included “light”, “mild”, “sourish”, “tasty” and “sweet”. Based on the above result of this study, it is apparent that there is a close relation between the food color and appetite while being difference between the general color and taste. In addition to this fact, there is also some differences between male and female college students in the taste of food color.

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Yellow 발광 OLED의 전기적 특성 (Electrical Properties of Yellow Emitting OLED)

  • 홍경진;기현철;민용기
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2009년도 하계학술대회 논문집
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    • pp.325-326
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    • 2009
  • We studied the effect of ITO surface treatment by using $O_2$ plasma to enhance the emission efficiency of the Organic Light Emitting Diodes (OLEDs). The luminance efficiency and the operational stability were improved with an ITO anode treated at the optimized conditions.

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반응성 염료에 의한 견날염에 관한 연구(단보) I. 백색발염에 대하여 (A Study on the Silk Printing with Reactive Dye.)

  • 정인모;이용우
    • 한국잠사곤충학회지
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    • 제32권2호
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    • pp.110-112
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    • 1990
  • The influence of the concetration of the discharging agent on some properties of silk fabric dyed with reactive dyes studied. The tensile strength, yellow index and whiteness were investigated as parameters to determine the effect of the dischanging agent. The results were summarized as follows ; 1. The tensile strength and the yellow index decreased with the increase of the concentration of the discharging agents. 2. The whiteness depended on both of the type and the concentration of the discharging agent.

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Analysis of Complex Forced Raleigh Scattering Decay Profiles for the Diffusion of Methyl Yellow in Binary Solution

  • 박하선;성정문;이현정;장태현;Daniel R. Spiegal
    • Bulletin of the Korean Chemical Society
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    • 제18권9호
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    • pp.1006-1010
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    • 1997
  • The nature and analysis methods of complicated decay profiles found in forced Rayleigh scattering (FRS) have been investigated for the probe diffusion of methyl yellow in 2-propanol. The complementary shifted and ground state grating effect, which is known to be the origin of non-single exponential decays, was analyzed by non-linear regression fitting to a double exponential model function. We confirmed that the parameters were highly correlated so that it was difficult to extract a unique set of parameters in the presence of experimental noise. Nevertheless, a reasonable range of decay time constants could be estimated from the grating spacing dependence.

SeaWiFS 자료를 이용한 황해와 동해의 생물광학 특성 비교 (Comparison of Bio-Optical Properties of the Yellow Sea and the East Sea using SeaWiFS Data)

  • 정종철
    • 한국지리정보학회지
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    • 제4권2호
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    • pp.38-45
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    • 2001
  • 본 연구에서는 동해와 황해에서 $36_{\circ}$ N과 $124_{\circ}$ E, $132_{\circ}$ E의 3개 라인으로부터 Lwn(normalized water leaving radiances)을 추출하였다. 이들 자료에 의해 OCTS 알고리듬과 SeaWiFS의 OC-2 알고리듬을 비교하였고, OCTS 알고리듬이 OC-2 알고리듬에 비해 엽록소 농도를 과대평가하고 있음을 알았다. 해색센서에 의해 동해와 황해의 해양환경변화를 장기적으로 모니터링하기 위해서는 황해의 부유사 영향을 제거할 수 있는 대기보정 방법이 제안되어야 하며, 용존유기물과 부유사 영향을 고려한 생물광학 알고리듬의 적용이 요구된다.

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다양한 콩종류가 흰쥐의 체내지질과 지질과산화에 미치는 영향 (Effects of Different Kinds of Korean Soybeans on Body Lipids and Lipid Peroxidation in Rats)

  • 김혜영;한윤희;김명희;김강성
    • Journal of Nutrition and Health
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    • 제40권3호
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    • pp.229-234
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    • 2007
  • This study was conducted to investigate the effect of different kinds of traditional Korean soybeans on blood and liver lipids and lipid peroxidation. SD male rats (n=48) were assigned to six different groups and provided experimental diets for 28 days. The protein source of the diet was casein, isolated soy protein (ISP), or casein plus traditional soy powders (yellow bean, huktae, jinuni or seorietae). The ISP, jinuni and seorietae diet decreased blood triglyceride compared to casein group. The ISP groups had lower hepatic total lipid and triglycerides than casein groups. The yellow bean and seorietae group had hepatic lipid lowering effects, but the effect was not found in huktae and jinuni group. The glutamate-oxaloacetate transaminase activity was significantly decreased in ISP and jinuni groups than in casein group. The glutamate-pyruvate transaminase activity was also decreased in ISP group. The results of this study suggest that jinuni, yellow bean and seorietae groups are more effective in lowering body lipids than huktae group.