• Journal of the Korean Society of Costume
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• v.64 no.4
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• pp.118-130
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• 2014

The purpose of this study is to measure the touching stimulus level of EEG for fabrics to create a reference data for product planning of clothes with touching characteristics of high satisfaction. The subjects were composed of 6 female college students and their EEG level was measured while they touched 6 kinds of Korean traditional silk fabric. The results are as follows: 1. Shantung and Myoungju showed the highest and the lowest values of alpha for the touching stimulus respectively. The fabric of Shantung showed high values of alpha, beta, theta, delta, gamma, high-beta and SMR for the touching stimulus. 2. The values of beta were the highest with Shantung and the lowest with Nobangju for the touching stimulus. 3. The highest values of theta and delta for the touching stimulus was assigned to Shantung and the lowest belonged to Gabsa. 4. The highest values of gamma for the touching stimulus was assigned to Shantung and the lowest belonged to Gongdan. 5. The highest value of SMR for the touching stimulus was assigned to Santung, and the lowest belonged to Gongdan and Nobangju. 6. The highest values of high-beta for the touching stimulus was assigned to Shantung and the lowest belonged to Gabsa and Gongdan.

• 한국HCI학회:학술대회논문집
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• 2009.02a
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• pp.538-541
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• 2009

In this paper, we explain a haptic based video and audio streaming method. The proposed method is to stream tactile and vibration information along with video and audio information. The video screen is divided into a grid, and each cell has tactile information which is corresponding to the content. At the same time, the sound stream is also analyzed and vibration information is applied. These data are streamed to clients and displayed through a haptic device and a vibration interface. So, a client will be more immersed into the video and audio by touching and getting vibrations.

• 한국HCI학회:학술대회논문집
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• 2009.02a
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• pp.741-744
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• 2009

In this paper, We introduce the glove mouse using a Gyroscope, acceleration sensor, Pin-type Viboratctile Display Device and USB HID. The device recognize a user's wrist by Gyroscope and acceleration sensor in the glove and transmit the data to USB dongle which is recognized the manufactured mouse by Blutooth. Also, using a special application, We transmit the tactile information to user through the Pin-type Vibrotactile Display. We implement wearable system in the glove except USB device. If user want to use general spatial mouse, we recognize mouse USB dongle only without another application. If user want to feel the tactile sensationn, we can use by connecting PC serial communication port to USB dongle.

• Korean Journal of Human Ecology
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• v.23 no.2
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• pp.317-328
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• 2014

In this study, differences of texture image and preference for men's suit fabrics according to mechanical properties, hand and fabric information were investigated. 55 subjects evaluated texture image and preference of 12 kinds of wool blended fabrics. For statistical analysis, t-test and pearson correlation coefficients were used. The results were as follows: Most of mechanical properties effected on texture images, and bending property and shearing property were effected on tactile preference and purchasing preference. For hand, objective hand values showed correlations with subjective texture images and preferences, but THV had almost no correlations. In sensory images according to presence of fabric information, fabrics were evaluated thinner, lighter, more pliable and smooth by cognition of wool blending ratio. For sensibility images, fabrics were evaluated more refined, intellectual, dignified and less practicable after recognize of wool blending ratio. In preferences, tactile preference was increased and purchasing preference was decreased after recognize fabric information. Therefore, significant differences of texture image and preference were observed according to presence of fabric information.

• Journal of Fashion Business
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• v.9 no.1
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• pp.1-20
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• 2005

This study is purposed to provide new idea for developing high value added fashion goods by studying relief effects of fashion design. Based on prior researches, various ways to give relief effects were searched and then modern fashion design cases were looked for which were referred to fashion-related magazines and collection-related internet sites since the late 1990s. The ways for relief effects are weaving, industrial finishing, sewing technique. Weaving techniques are about fancy yarns, variation of weaving structure, pile weave. Industrial finishing techniques which can make relief effects are embossing, heat-setting, shearing, pliss, burn out, flocking. Sewing techniques are quilting, pleats, embroidery, slash, attachment in accordance with the way to produce relief effects. The forms of relief effects are tactile pattern that cannot be seen in the distance, subtle relief pattern which is more three-dimensional than tactile pattern, rhythmical relief pattern, sculptural pattern, and deep-volumed pattern. The present research can provide practical data for design by studying techniques of relief effects and collecting and arranging design cases that have been sporadically carried out. The study on relief and unique surface effects can be a way to effectively stimulate and express emotions of modern people with various taste and individuality.

• Korean Journal of Human Ecology
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• v.14 no.5
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• pp.821-832
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• 2005

The purpose of this study is to investigate bathing habits and behaviors, and to find out consumers' needs for washcloth, which in this case refers to Korean exfoliating cloth for bathing purpose. Subjects of this study were females of 20s to 50s living in urban area. Four hundred and twenty-six (426) women were interviewed with a structured questionnaire. Data were analyzed by ANOVA, factor analysis, correlation analysis, MDS. The results of this study are briefly summarized as follows: The most popular bathing type was shower (84.9%). Personal hygiene was one of the commonest purpose of bathing, and other purposes included health maintenance, stress alleviation, and beauty in order. Dimensions of consumer needs for washcloth were extracted from factor analysis as following properties: tactile, tough, aesthetic, constructive, and hygienic. The preference for washcloth type was related to skin type. "Non-skin damage property" was the most important parameter to choose washcloth and the other parameters included massage effect, tactile property, foaming property, and easy-to-use property.

• International Journal of Human Ecology
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• v.8 no.1
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• pp.27-37
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• 2007

The purpose of this study is to investigate the preference of the hand and the sensibility image of underwear textiles according to seasons. According to a recent survey of 109 college students, using a 7 scale evaluation to the preference of the hand and the sensibility image among 13 summer and 10 winter underwear textiles. The data was analyzed through mean, SD, factor analysis, t-test, Person correlation analysis and regression analysis using SPSS Win 11.0. The summer underwear textiles were classified according to six tactile factors: stiffness/surface unevenness, weight, elasticity, moistness, extension, and warm-cool and 3 sensibility image factors: elegant individual, modern, and sporty-casual. The winter textiles were classified according to six tactile factors: stiffness/surface unevenness, elasticity, warm-cool, drapability, moistness and flexibility and divided into 2 sensibility images: modern elegant and sporty-casual. Factors expressing hand and sensibility image according to season showed significant difference. In the summer, weight, in the winter, drapability and flexibility showed significant difference at the hand factor evaluation. The hand factors: weight, warm-cool and modern sensibility image factors effect the preference of summer underwear textile, also the hand factors-elasticity, stiffness/surface unevenness and the sensibility image factor-easy-sport-casual-effect the preference of winter textiles. Therefore, the thin, light, and cool textiles which are also gorgeous and sporty-casual are preferred for summer underwear textiles while soft, simple and comfortable textiles are preferred for winter textiles.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2009.04a
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• pp.280-281
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• 2009

Piezoelectric vibrators can be good replacements of electric motors to excite touch screen of a mobile device owing to small volume and low power consumption. One problem to be solved yet for real application is larger excitation force or moment than available currently. More efficient excitation by a piezoelectric vibrator could be achieved by operating at one of resonance frequencies of the system, which must also be as close as possible to frequency range where index finger is most sensitive and increasing transmission force or moment at that frequency. In this study, dynamic models are derived for the piezoelectric exciter and an adhesive viscoelastic layer, which connect the exciter to the screen. The adhesive layer is modeled as distributed stiffness by considering its geometric shape to relative to the piezoelectric exciter. Then, equations of motion for the piezoelectric exciter and the adhesive layer are derived using Hamilton's principle. Based on this model, dynamic characteristics of the exciter will be designed to maximize the force or moment transmitted onto the screen structure.

• Applied Chemistry for Engineering
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• v.18 no.2
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• pp.121-125
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• 2007

Siloxane monomer and oligomer were introduced to n-butyl acrylate and methyl methacrylate copolymer for improvement of water resistance and tactile sensation of acryl-type emulsion. Terpolymerimerization of n-butylacrylate, methyl methacrylate and siloxane monomer or oligomer was carried out in aqueous solution. The glass transition temperature (Tg) of terpolymer decreased with increasing siloxane monomer, however, the Tg of terpolymer increased with increasing siloxane oligomer due to the crosslinking of acrylated end group. The adhesion property and surface energy of the obtained terpolymer decreased with introducing siloxane monomer or oligomer in terpolymer. Decrement of tack and surface energy means the enhancement of water resistance and tactile sensation of the emulsion.

• Journal of the Society of Naval Architects of Korea
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• v.52 no.6
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• pp.478-484
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• 2015

Knowledge about ice load distribution along the ship hull due to ship-ice interaction can provide important background information for the development of design codes for ice-going vessels. The objective of this study is to understand ship and ice interaction phenomena and determine the magnitude of ice load acting along a ship hull. The model tests were performed in the ice model basin in Korea Research Institute of Ships and Ocean engineering (KRISO) with the model of icebreaking ship Araon. Self-propulsion tests in level ice were performed with three difference model ship speeds. In the model tests, three tactile sensors were installed to measure the spatial distribution of ice load acting at different locations on a model ship, such as the bow and shoulder areas. Variation in the distribution of ice load acting on a model hull with ship speed is discussed.