The purpose of the present study was to explore the effects of wearing knee guards on skin blood ... more The purpose of the present study was to explore the effects of wearing knee guards on skin blood flow and skin pressure during dynamic soccer motions. Twenty-one male subjects participated in the following two experimental conditions: wearing knee guards (KG) and no knee guards (Control). Subjects performed several consecutive soccer motions along with a standing position between each motion. Skin blood flow and skin pressure on the thigh, knee, and calf were monitored. The results showed that skin pressure had the greatest value in a sitting position for both the KG condition and Control, but the smallest during instep kicking and switching directions (P < 0.001). The rear calf had the greatest skin pressure for the KG condition (P < 0.001), while the side knee showed the greatest for the Control (P < 0.001). Normalized skin blood flow based on values from their standing position was the greatest during the jump motion among the various soccer motions. Interestingly, skin ...
The thermal storage and washing durability of polyester fabrics treated with tungsten bronze nano... more The thermal storage and washing durability of polyester fabrics treated with tungsten bronze nanorods(TBNRs) were analyzed to determine the optimal concentration for the photothermal effect in this study. TBNRs with an average length of 34.0 ± 2.5 nm and a diameter of 2.3 ± 0.4 nm were synthesized by the thermal decomposition of Ammonium metatungstate hydrate(AMT) in oleylamine (OA) to generate TBNRs that are capable of emitting heat by efficiently absorbing light in the near-infrared region. The effect of TBNR concentration and the silane coupling agent on the photothermal effect and washing durability of the PET fabric were evaluated with a solar simulator. As a result, as the concentration of TBNRs increased, the photothermal effect increased, and the maximum photothermal effect was shown at 5 wt%. In addition, washing durability were further improved by adding 0.5 wt% silane counpling agent. Overall, the post-processing treatment effectively increased the photothermal effect wit...
Currently, most commercial polyols used in the production of polyurethane (PU) foam are derived f... more Currently, most commercial polyols used in the production of polyurethane (PU) foam are derived from petrochemicals. To address concerns relating to environmental pollution, a sustainable resource, namely, castor oil (CO), was used in this study. To improve the production efficiency, sustainability, and compressive strength of PU foam, which is widely used as an impact-absorbing material for protective equipment, PU foam was synthesized with CO-based multifunctional polyols. CO-based polyols with high functionalities were synthesized via a facile thiol-ene click reaction method and their chemical structures were analyzed. Subsequently, a series of polyol blends of castor oil and two kinds of castor oil-based polyols with different hydroxyl values was prepared and the viscosity of the blends was analyzed. Polyurethane foams were fabricated from the polyol blends via a free-rising method. The effects of the composition of the polyol blends on the structural, morphological, mechanical,...
: This study investigates the effects of appearance-relative behaviors of adolescent female consu... more : This study investigates the effects of appearance-relative behaviors of adolescent female consumers on their awareness of heath harmfulness and skinny jeans purchasing behaviors and identifies the influential variables on the wearing satisfaction of skinny jeans. A survey was carried out with middle and high school female students and 386 responses were analyzed using descriptive analysis, factor analysis, a reliability test, and regression analysis. The results of this study were as follows, 1) From the results of the factor analysis on appearance-related behaviors and clothing benefits of skinny jeans for female adolescents, each of the variance assessments clearly showed factorial structures. 2) As a result of looking at the influences of appearance-relative behaviors on the clothing benefits of skinny jeans, respondents who paid more attention to their appearance tended to consider hygiene and activity comfort less important. In addition, respondents who had higher fashion con...
In human history, scarf has acted not only as a protection for body but also as a symbolization o... more In human history, scarf has acted not only as a protection for body but also as a symbolization of class. Today, scarf has become a whole field in fashion and an important accessory to express individuality in fashion. Hence, like other fashion item, it is very important to develop exclusive design for scarf by analyzing the current fashion trend. In this research, we have designed a scarf textile, accordance with the contemporary design trend, applying the floral pattern, designed by William Morris who was an artist considered as the founder of the 1800s arts and crafts movement. We selected four trend themes, "Salon de Archives", "Eco Tech", "Profound Nature", and "Neo Aristo" for the design of 2007/2008 Fall/Winter. The flower motifs in Pimpernel Wallpaper, Honeysuckle textile design, Acanthus Wallpaper, Garden tulip wallpaper, Evenlode printed cotton, Trellis Wallpaper, and Chrysanthemum Wallpaper, by William Morris who expressed an image ...
Increased demands for sustainable apparel products require research to understand better how to e... more Increased demands for sustainable apparel products require research to understand better how to encourage sustainable buying behavior effectively, especially in the understudied areas of cross-cultural research. This study, which includes respondents from the UK, US, and China (total n = 711) who completed an online survey, explores determinants of behavioral intention toward sustainable apparel products (SAP). This paper contributes to examine both consumer characteristics (shopping values, consciousness of sustainability, perceived consumer effectiveness, and environmental knowledge) and marketing perspective (evaluation criteria of SAP) determinants for encouraging sustainable apparel consumption behaviors. Significant country differences also emerged, indicating the positive impact on behavioral intention to sustainable apparel products across three countries. Results of structural equation modeling analysis demonstrated there were differences and similarities in the effect of c...
Bio ethylene propylene diene monomer (EPDM) produced with sugarcane-derived ethylene is an eco-fr... more Bio ethylene propylene diene monomer (EPDM) produced with sugarcane-derived ethylene is an eco-friendly alternative material that can perform similarly to an oil-based synthetic rubber while reducing dependence on fossil resources. In this study, bio-EPDM/tungsten oxide nanocomposite was prepared to improve thermal insulation properties of bio-EPDM foam for application in highly functional eco-friendly diving wetsuits. The synthesized tungsten bronze nanorods (TBNRs) were doped with sodium and added to the bio-EPDM compound, then foam was generated by molding at 155 °C under a high-pressure. After foam molding, the effects of TBNRs on the sea water resistance as well as the thermal and mechanical properties of bio-EPDM foam were investigated. As a result, TBNRs remarkably improved the softness and photothermal properties of bio-EPDM foam without a significant reduction of their mechanical properties. Especially, the excellent dimensional stability of the bio-EPDM foam with TBNRs und...
We present polymer nanocomposites of tungsten bronze nanorods (TBNRs) and ethylene propylene dien... more We present polymer nanocomposites of tungsten bronze nanorods (TBNRs) and ethylene propylene diene monomers (EPDM). The combination of these components allows the simultaneous enhancement in the mechanical and photothermal properties of the composites at low filler contents. The as-synthesized TBNRs had lengths and diameters of 14.0 ± 2.4 nm and 2.5 ± 0.5 nm, respectively, and were capped with oleylamine, which has a chemical structure similar to EPDM, making the TBNRs compatible with the bulk EPDM matrix. The TBNRs absorb a wide range of near-infrared light because of the sub-band transitions induced by alkali metal doping. Thus, the nanocomposites of TBNRs in EPDM showed enhanced photothermal properties owing to the light absorption and subsequent heat emission by the TBNRs. Noticeably, the nanocomposite with only 3 wt% TBNRs presented significantly enhanced tensile strain at break, in comparison with those of pristine EPDM, nanocomposites with 1 and 2 wt % TBNRs, and those with t...
The purpose of the present study was to explore the effects of wearing knee guards on skin blood ... more The purpose of the present study was to explore the effects of wearing knee guards on skin blood flow and skin pressure during dynamic soccer motions. Twenty-one male subjects participated in the following two experimental conditions: wearing knee guards (KG) and no knee guards (Control). Subjects performed several consecutive soccer motions along with a standing position between each motion. Skin blood flow and skin pressure on the thigh, knee, and calf were monitored. The results showed that skin pressure had the greatest value in a sitting position for both the KG condition and Control, but the smallest during instep kicking and switching directions (P < 0.001). The rear calf had the greatest skin pressure for the KG condition (P < 0.001), while the side knee showed the greatest for the Control (P < 0.001). Normalized skin blood flow based on values from their standing position was the greatest during the jump motion among the various soccer motions. Interestingly, skin ...
The thermal storage and washing durability of polyester fabrics treated with tungsten bronze nano... more The thermal storage and washing durability of polyester fabrics treated with tungsten bronze nanorods(TBNRs) were analyzed to determine the optimal concentration for the photothermal effect in this study. TBNRs with an average length of 34.0 ± 2.5 nm and a diameter of 2.3 ± 0.4 nm were synthesized by the thermal decomposition of Ammonium metatungstate hydrate(AMT) in oleylamine (OA) to generate TBNRs that are capable of emitting heat by efficiently absorbing light in the near-infrared region. The effect of TBNR concentration and the silane coupling agent on the photothermal effect and washing durability of the PET fabric were evaluated with a solar simulator. As a result, as the concentration of TBNRs increased, the photothermal effect increased, and the maximum photothermal effect was shown at 5 wt%. In addition, washing durability were further improved by adding 0.5 wt% silane counpling agent. Overall, the post-processing treatment effectively increased the photothermal effect wit...
Currently, most commercial polyols used in the production of polyurethane (PU) foam are derived f... more Currently, most commercial polyols used in the production of polyurethane (PU) foam are derived from petrochemicals. To address concerns relating to environmental pollution, a sustainable resource, namely, castor oil (CO), was used in this study. To improve the production efficiency, sustainability, and compressive strength of PU foam, which is widely used as an impact-absorbing material for protective equipment, PU foam was synthesized with CO-based multifunctional polyols. CO-based polyols with high functionalities were synthesized via a facile thiol-ene click reaction method and their chemical structures were analyzed. Subsequently, a series of polyol blends of castor oil and two kinds of castor oil-based polyols with different hydroxyl values was prepared and the viscosity of the blends was analyzed. Polyurethane foams were fabricated from the polyol blends via a free-rising method. The effects of the composition of the polyol blends on the structural, morphological, mechanical,...
: This study investigates the effects of appearance-relative behaviors of adolescent female consu... more : This study investigates the effects of appearance-relative behaviors of adolescent female consumers on their awareness of heath harmfulness and skinny jeans purchasing behaviors and identifies the influential variables on the wearing satisfaction of skinny jeans. A survey was carried out with middle and high school female students and 386 responses were analyzed using descriptive analysis, factor analysis, a reliability test, and regression analysis. The results of this study were as follows, 1) From the results of the factor analysis on appearance-related behaviors and clothing benefits of skinny jeans for female adolescents, each of the variance assessments clearly showed factorial structures. 2) As a result of looking at the influences of appearance-relative behaviors on the clothing benefits of skinny jeans, respondents who paid more attention to their appearance tended to consider hygiene and activity comfort less important. In addition, respondents who had higher fashion con...
In human history, scarf has acted not only as a protection for body but also as a symbolization o... more In human history, scarf has acted not only as a protection for body but also as a symbolization of class. Today, scarf has become a whole field in fashion and an important accessory to express individuality in fashion. Hence, like other fashion item, it is very important to develop exclusive design for scarf by analyzing the current fashion trend. In this research, we have designed a scarf textile, accordance with the contemporary design trend, applying the floral pattern, designed by William Morris who was an artist considered as the founder of the 1800s arts and crafts movement. We selected four trend themes, "Salon de Archives", "Eco Tech", "Profound Nature", and "Neo Aristo" for the design of 2007/2008 Fall/Winter. The flower motifs in Pimpernel Wallpaper, Honeysuckle textile design, Acanthus Wallpaper, Garden tulip wallpaper, Evenlode printed cotton, Trellis Wallpaper, and Chrysanthemum Wallpaper, by William Morris who expressed an image ...
Increased demands for sustainable apparel products require research to understand better how to e... more Increased demands for sustainable apparel products require research to understand better how to encourage sustainable buying behavior effectively, especially in the understudied areas of cross-cultural research. This study, which includes respondents from the UK, US, and China (total n = 711) who completed an online survey, explores determinants of behavioral intention toward sustainable apparel products (SAP). This paper contributes to examine both consumer characteristics (shopping values, consciousness of sustainability, perceived consumer effectiveness, and environmental knowledge) and marketing perspective (evaluation criteria of SAP) determinants for encouraging sustainable apparel consumption behaviors. Significant country differences also emerged, indicating the positive impact on behavioral intention to sustainable apparel products across three countries. Results of structural equation modeling analysis demonstrated there were differences and similarities in the effect of c...
Bio ethylene propylene diene monomer (EPDM) produced with sugarcane-derived ethylene is an eco-fr... more Bio ethylene propylene diene monomer (EPDM) produced with sugarcane-derived ethylene is an eco-friendly alternative material that can perform similarly to an oil-based synthetic rubber while reducing dependence on fossil resources. In this study, bio-EPDM/tungsten oxide nanocomposite was prepared to improve thermal insulation properties of bio-EPDM foam for application in highly functional eco-friendly diving wetsuits. The synthesized tungsten bronze nanorods (TBNRs) were doped with sodium and added to the bio-EPDM compound, then foam was generated by molding at 155 °C under a high-pressure. After foam molding, the effects of TBNRs on the sea water resistance as well as the thermal and mechanical properties of bio-EPDM foam were investigated. As a result, TBNRs remarkably improved the softness and photothermal properties of bio-EPDM foam without a significant reduction of their mechanical properties. Especially, the excellent dimensional stability of the bio-EPDM foam with TBNRs und...
We present polymer nanocomposites of tungsten bronze nanorods (TBNRs) and ethylene propylene dien... more We present polymer nanocomposites of tungsten bronze nanorods (TBNRs) and ethylene propylene diene monomers (EPDM). The combination of these components allows the simultaneous enhancement in the mechanical and photothermal properties of the composites at low filler contents. The as-synthesized TBNRs had lengths and diameters of 14.0 ± 2.4 nm and 2.5 ± 0.5 nm, respectively, and were capped with oleylamine, which has a chemical structure similar to EPDM, making the TBNRs compatible with the bulk EPDM matrix. The TBNRs absorb a wide range of near-infrared light because of the sub-band transitions induced by alkali metal doping. Thus, the nanocomposites of TBNRs in EPDM showed enhanced photothermal properties owing to the light absorption and subsequent heat emission by the TBNRs. Noticeably, the nanocomposite with only 3 wt% TBNRs presented significantly enhanced tensile strain at break, in comparison with those of pristine EPDM, nanocomposites with 1 and 2 wt % TBNRs, and those with t...
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Papers by Kyung Wha Oh