• 제목/요약/키워드: Light Stimulus

검색결과 125건 처리시간 0.031초

The Impression Evaluation according to Coloration of Shirts and Ties (I) - On Tone-on-Tone Coloration of Purple and Green - (셔츠와 타이의 배색방법에 따른 남성복의 인상 평가 (제1보) - 보라, 초록색의 톤 온 톤 배색을 중심으로 -)

  • Lim, Ji-Young;Kang, Kyung-Ja
    • Korean Journal of Human Ecology
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    • 제14권5호
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    • pp.833-846
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    • 2005
  • The purpose of this study is to find out the various impressions that tone-on-tone coloration of shirts and ties gives. This experiment was based on the $2\times4\times4\times2$ factorial designs; colors (purple and green), shirt tones (vivid, light, dull, and dark), tie tones (vivid, light, dull, and dark) and perceivers' genders (male and female). The materials in the experiment developed for this study were composed of various stimuli and the response scales for each stimulus. The stimuli were 32 upper body photographs, which were color printed by CAD system (4D-box program). We unified those colors of shirts and ties, and then made shirt and tie tone different. 27 bi-polar adjectives, each of which was graded into seven in its degree, were used to evaluate the impression. The subjects of this research were 192 male and 192 female college students in Gyeongnam province including Jinju City. The data was analyzed by using SPSS program. Analyzing methods were one-way ANOVA and LSD test. The items of the adjectives were classified into 5 impression dimensions; potency, activeness, attractiveness, visibility and tenderness. In conclusion the impression through matching shirts and ties could be varied by the colors and the tones of shirts and ties. This study can be used as the basic color data in the males' clothes market which gradually pursuits high-quality, personality, and variety.

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Alcohol Impairs learning of T-maze Task but Not Active Avoidance Task in Zebrafish

  • Yang, Sunggu;Kim, Wansik;Choi, Byung-Hee;Koh, Hae-Young;Lee, Chang-Joong
    • Animal cells and systems
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    • 제7권4호
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    • pp.303-307
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    • 2003
  • The aim of this study is to investigate whether alcohol alters learning and memory processes pertaining to emotional and spatial factors using the active avoidance and T-maze task in zebrafish. In the active avoidance task, zebrafish were trained to escape from one compartment to another to avoid electric shocks (unconditioned stimulus) following a conditioned light signal. Acquisition of active avoidance task appeared to be normal in zebrafish that were treated with 1% alcohol for 30 min for 17 days until the end of the behavioral test, and retention ability of learned behavior, tested 2 days later, was the same as control group. In the T-maze task, the time to find a reservoir was compared. While the latency was similar during the 1 st training session between control and alcohol-treated zebrafish, it was significantly longer in alcohol-treated zebrafish during retention test 24 h later. Furthermore, when alcohol was treated 30 min after 2nd session without prior treatment, zebrafish demonstrated similar retention ability compared to control. These results suggest that chronic alcohol treatment alters spatial learning of zebrafish, but not emotional learning.

Children's Clothing Preference on Animation Character Color -Focusing on Mickey and Mini Mouse- (애니메이션 캐릭터 색채에 대한 유아의 의복 선호도 -미키와 미니마우스를 중심으로-)

  • Sung, Nam-Suk;Choi, Su-Koung
    • Journal of the Korea Fashion and Costume Design Association
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    • 제13권2호
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    • pp.63-71
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    • 2011
  • The purpose of this study was to analyze children's clothing preference on animated character color. The experimental materials developed for this study were a set of stimulus and response scales. The stimuli were 30 color pictures, in which gender (boy, girl), type of character (Mickey Mouse, Mini Mouse), hue of character (red, yellow, green, blue, purple), and tone of character (vivid, light, dark) were manipulated. The 5-point scale was used to evaluate children's clothing preferences. Data were obtained from 300 boys and 300 girls living in Seoul, Busan, Jinju, and Changwon in April 2010. For data analysis, ANOVA and Duncan-test were used by using SPSS program. Results of this study were as follows. Tone of character had an independent effect on children's clothing preference. Interaction effects of gender and hue of the character were found. Interaction effects of gender and tone of the character were found. Interaction effects of type and tone of the character were found.

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The Image Perception Depending on the Tone-on-lone Coloration of a Korean skirt and a Korean jacket (치마$cdot$저고리의 톤 온 톤 배색에 대한 이미지 지각)

  • Kang Kyung-Ja;Jeong Bok-Nam;Jeong Su-Jin
    • Journal of the Korea Fashion and Costume Design Association
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    • 제7권2호
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    • pp.39-50
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    • 2005
  • The purpose of this research was to investigate the impression dimension and to elucidate the image perception depending on the tone of the Korean jacket and Korean skirt using the tone-on-tone coloration. As stimulators, the became same color by making the skirt and jacket red, yellow, and green at the same time. After the skirt and jacket became four kinds of tones, vivid, light, dull, and dark by altering value and fuing chroma in the assembled color, these tone-on-tone coloration stimulators $48(3\times4\times4)$ were used for the investigation of this study. Impression factor of the stimulus consisted of the 5 different dimensions(youthfulness and activity, attractiveness, gracefulness, concentration of attention, tenderness). Among these factors, youthfulness and activity, attractiveness were proved to be more important. In the tone-on-tone coloration of a Korean skirt and a Korean jacket, each dimensional image was affected by the character of color, also the evaluation of countenance showed the meaningful difference depending on tone. Thus, we can comprehend that the influence of tone as well as color affects the evaluation of an image.

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The Clothing Image according to Coloration, Tone, and Interval of Checked Pattern in Color Contrast (색상대비 체크무늬의 배색, 톤, 간격에 따른 의복이미지)

  • Jeong, Su-Jin;Choi, Su-Koung
    • Fashion & Textile Research Journal
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    • 제13권2호
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    • pp.147-154
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    • 2011
  • The purpose of this study was to investigate the clothing image according to coloration, tone, and interval of checked pattern in color contrast. The experimental materials developed for this study were a set of stimulus and response scales. The stimuli were 24 color pictures, in which coloration(RB: Red+Blue, YP: Yellow+Purple), tone(light, dull, dark), and interval(0.5 cm, 1.5 cm, 3.5 cm, 5.5 cm) were manipulated. The 7-point scale was used for evaluation of clothing image. Data were obtained from 240 female college students living in Seoul, Gwangju, Jinju, and Masan on May 2010. For data analysis, ANOVA and Duncan-test were used by using SPSS program. Results of this study were as follows.; Clothing image according to coloration, tone, and interval of checked pattern consisted of five dimensions of attractiveness, freshness, appeal, modesty, and activity. Coloration showed an independent effect on attractiveness and appeal. Tone showed an independent effect on freshness, appeal, and modesty. Interval showed an independent effect on freshness. Also, interaction effects of coloration and tone on appeal were found. Interaction effects of coloration and interval on modesty were found.

Stability and Rheology of Cream Containing Sopoongsan (소풍산을 첨가한 크림의 안정성 및 물성 변화)

  • An, Bong-Jeun;Lee, Jin-Young;Lee, Chang-Eon;Son, Jun-Ho;Park, Jung-Mi;Park, Tae-Soon
    • Applied Biological Chemistry
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    • 제48권4호
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    • pp.404-410
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    • 2005
  • Sopoongsan is an oriental medicinal composition including 12 medicinal herbs. Sopoongsan is known to have anti-inflammatory, antimicrobial, anti-allergic, and anticancer effects on human skin. The results of stability test showed that the creams containing Sopoongsan extracts were very stable at both accelerated temperature conditions and sun-light. And pH and viscosity of each cream did not change greatly for 56 days. From the particle size and rheological measurements, it can be known that when the amount of the Sopoongsan extracts increases, the mean value of particle size decreases, and the value of the complex modulus and loss angle increases, which means the Sopoongsan extracts help stabilize the emulsion. From the result of human patch test to assess the safety of cream containing Sopoongsan extracts, there was no stimulus of negative reaction on skin. In result of the user tests, it can be known that the higher concentration of the Sopoongsan was preferred by customers.

Investigation of Visual Perception Under Zen-Meditation Based On Alpha-Dependent F-VEPs

  • Liao, Hsien-Cheng;Liu, Chuan-Yi;Lo, Pei-Chen
    • Journal of Biomedical Engineering Research
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    • 제27권6호
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    • pp.384-391
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    • 2006
  • Variation of brain dynamics under Zen meditation has been one of our major research interests for years. One issue encountered is the inaccessibility to the actual meditation level or stage as a reference. In this paper, we propose an alternative strategy for investigating the human brain in response to external flash stimuli during Zen meditation course. To secure a consistent condition of the brain dynamics when applying stimulation, we designed a recording of flash visual evoked potentials (F-VEPs) based on a constant background EEG (electroencephalograph) frontal $\alpha-rhythm$ dominating activities that increase significantly during Zen meditation. Thus the flash-light stimulus was to be applied upon emergence of the frontal $\alpha-rhythm$. The alpha-dependent F-VEPs were then employed to inspect the effect of Zen meditation on brain dynamics. Based on the experimental protocol proposed, considerable differences between experimental and control groups were obtained. Our results showed that amplitudes of P1-N2 and N2-P2 on Cz and Fz increased significantly during meditation, contrary to the F-VEPs of control group at rest. We thus suggest that Zen meditation results in acute response on primary visual cortex and the associated parts.

Field-Sequential Stereoscopic System Using a Photo Sensor (포토 센서를 이용한 시분할 입체 시스템의 구현)

  • Lee, Sang-Hun;Kim, Yeong-Mo
    • Journal of the Institute of Electronics Engineers of Korea CI
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    • 제37권3호
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    • pp.39-44
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    • 2000
  • In this Paper, we present a new 3D viewing device based on field-sequential stereoscopic system. To extract signals for synchronization, common field-sequential stereoscopic system should insert extra equipment in the system(usually PC), or use internal signal of the system with software drivers. It causes several problems such as inconvenience, compatibility with hardware or OS, and reversed view of left and right image. In this paper, we propose new system that uses photo sensor sensing the light stimulus on the screen to extract synchronization and R/L distinction signals. This system will solve these problems and moreover it can operate in the internet or HDTV.

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Studies on the Effect of 2-Chloroethylphosphonic Acid (Ethephon) on the Floral Induction in Photoperiodic Plants (광주기식물의 개화유도에 미치는 2-Chloroethylphosphonic Acid(Ethephon)의 효과에 관한 연구 I. Ethephon에 의한 Lemna perpusilla 6746 개화억제)

  • 맹주선
    • Journal of Plant Biology
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    • 제20권2호
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    • pp.77-82
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    • 1977
  • The inhibiotory effect of ethphon on the flowering in Lemna perpusilla 6746 was shown to be related to sucrose concentrations and dilution factors of Hutner's medium. When grown in 1/10-strength Hutner's medium under 10(14) cycles, the plants have been completely inhibited in the floral induction by ethephon (>5ppm) in the presence of sucrose (>20 mM) in the meduim. However, in a less diluted Hutner's medium (1/2-strength), the inhibition of flowering by ethephon was observed to be partially diminished by sucrose at a high concentration (30mM), while a low concentration of sucrose enhanced the inhibitory effect of ethephon in flowering. As inductive dark periodswere extended, the effects of both compounds were partially nullified. Since no significant amount of ethylene possibly released in ethephon decomposition in the medium was detected, the inhibitory effect of ethephon in flowering was postulated to be exerted only through ethylene production within the plants. Plants were incubated in 10 ppm ethephon-containing medium during either dark or light periods, singly or periodically. The most effective single treatment with ethephon was observed during the 4th dark period, when formation of floral stimulus was assumed to be completed beyond a critical level. This postulation can be partially supported by a fact that the plants should be exposed to at least more than four consecutive 10(14) cycles for flowering.

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The Image Evaluation according to Checked Pattern Variable of Casual Shirts -Focus on Tone-in-Tone Coloration- (캐주얼 셔츠의 체크패턴 변인에 따른 이미지 평가 -톤 인 톤 배색을 중심으로-)

  • Choi, Soo-Kyoung
    • Journal of the Korean Society of Clothing and Textiles
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    • 제35권8호
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    • pp.867-876
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    • 2011
  • This study investigates the image of casual shirts according to color combination, tone, and interval of checked pattern in tone-in-tone coloration. The experimental materials developed for this study were a set of stimulus and response scales. The stimuli were 24 color pictures, in which color combination (RY: Red+Yellow, BP: Blue+Purple), tone (light, dull, dark), and interval (0.5cm, 1.5cm, 3.5cm, and 5.5cm) were manipulated. The 7-point scale was used for evaluation of image. Data were obtained from 240 female college students living in Seoul, Gwangju, Jinju, and Changwon in April 2010. For data analysis, ANOVA and Duncan-test were used by using SPSS program. The results of this study are as follows. Image according to color combination, tone, and interval of checked pattern consisted of five dimensions of attractiveness, youth- activity, appeal, modesty, and freshness. The cover combination showed an independent effect on freshness. Tone showed an independent effect on attractiveness, youth-activity, appeal, and modesty. Interval showed an independent effect on appeal, modesty, and freshness. Interaction effects of color combination and tone on youth-activity and appeal were found. In addition, interaction effects of tone and interval on attractiveness, youth-activity, and freshness were also found.