• The Journal of the Korea Contents Association
• /
• v.16 no.2
• /
• pp.14-24
• /
• 2016

Recently, the sound design of the electric vehicle has emerged as one of the new research objects. This study was conducted to explore and examine major values of interior driving sound of the electric vehicle from the perspective of user experience. An exploratory study based on the ground theory extracted contextual information and quietness as independent variables, and then we analyzed the main and interaction effects of those two variables on the usefulness, emotion, and satisfaction through a $2{\times}2$ factorial experimental design. The experimental study demonstrated that the effect on the user experience of electric vehicle can be conditioned by the combination of contextual information sound and quietness. Based on the results of this study, we suggested future research agendas for the optimization of user needs which reflect individual preference of interior driving sound values.

• The Journal of The Korea Institute of Intelligent Transport Systems
• /
• v.21 no.1
• /
• pp.193-208
• /
• 2022

The purpose of this study is to verify how the EV rent-a-car satisfaction affect the purchase intention of the EV. As a result of the study, Gender, Age, Quietness & Ride comfort, Charging infrastructure had a significant correlation with the EV rent-a car satisfaction level. and It is confirmed that the factors of Age, Quietness & Ride comfort, Charging infrastructure affect the EV purchase intention of the EV through the EV rent-a-car satisfaction level. The differentiation of the study is that it was analyzed through empirical research, focusing on the EV rent-a-cars as a major means of spreading the EV. also the analysis target was limited to first-time the EV's Users through the EV rent-a-car.

• KIEAE Journal
• /
• v.1 no.2
• /
• pp.13-19
• /
• 2001

Recently, With the increase of income level, many people desire to have agreeable and quiet surrounding. However, the extent and time of the exposure to construction noise and vibration is increasing, which is a factor that ruins the quietness of the surrounding and increasingly raises interests in its effects. In this point, this study attempts to survey the characteristics of construction vibration by SD(Sand drain) method in construction field. In addition, the result of study is presumed to be usable as the fundamental materials for an efficient counter-plan in case of the public resentment in relations to the construction vibration occurring henceforth.

• Journal of Korean Academy of Nursing
• /
• v.27 no.4
• /
• pp.740-752
• /
• 1997

The purpose of this study was to identify structural patterns in the subjectivity of Taegyo in pregnant woman and to provide a basis for nursing interventions. Thirty pregrant women were the subjects of this study. They were in the gestation period of pregnancy between 12 weeks to five days post partum and they lived in the city of Taejon. The research method employed Q-methodology which is based on self-psychology and abductive logics. The results revealed three different types of the Taegyo ; 1) Peaceful mind type, listening to music and appreciation of art for quietness of mind and also the support and concern of husband. 2) Self control type, recognizes herself as a pregrant woman and trys to do her works spontaneously and also adapt herself to changing of circumstances. 3) Dependent oriented type, needs absolute help from the surroundings under the specific condition of pregnancy. This results show that investigating the specific experience, characteristic and structure of the Taegyo of a pregnant woman can be used as a part of the nursing assessment and also provides useful basic data of nursing interventions during pregnancy.

• Journal of the Korea Fashion and Costume Design Association
• /
• v.4 no.1
• /
• pp.5-17
• /
• 2002

This study aimed to investigate the relationship between ideal images of women and women's clothing fashion England between 1820s and 1850s. The age was divided into two periods, which were 1820-1836 and 1837-1850. During the first period, the ideal images of women were those of fairy, spirit, and angels, which were expressed by tight waist belt, wider and shorter skirt, top expanded sleeve, wide and flat pelerine collar, feather decoration, elaborate and curly hair style, narrow and light ballerina shoes etc.. During the second period, the ideal images for women were those of lady with modesty, quietness, and weakness. They were expressed by long and full skirt, tight or bulge over the lower arm sleeve, dropped sleeve, poke bonnet, body wrapping large shawl and sober color etc.. The result shows that the ideal images of women in 19th century England were concretely expressed by various clothing fashion including hair style, shoes, and decoration. This study sheds light on psychological, historical, and theoretical approaches to clothing.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
• /
• 2006.11a
• /
• pp.757-762
• /
• 2006

The method of promoing sound surroundings with the new concept named 'Soundscape' attracts the public attention. This new method is the way of active promoting acoustic surroundings to offer the vitality, comfort and identity of urban space and relative quietness by masking the noise with natural and signal sounds. Therefore, this research has the purpose of finding out the method of soundscape concept of urban public space for the comfort acoustic surroundings.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
• /
• 2002.11b
• /
• pp.665-670
• /
• 2002

Pleasantness or quietness becomes one of the most important factors for residential designs recently. Especially for apartments, the noise generated by falling objects becomes a sensitive issue these days. To overcome the problem of the impact noise in apartments, the floor design has been changed. To reduce the transmissibility of the noise, composite floor structures are devised and implemented for the construction of apartments. In this paper, the noise reduction performance of a composite floor plate with holes is analyzed. Computational modelings for the structures are developed and its performance is evaluated by using the finite element method. The results show that the noise can be well reduced with the multi-layer composite floor plates with holes.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
• /
• 2007.05a
• /
• pp.494-500
• /
• 2007

The comfort and quietness of vehicle has been improved greatly due to the development of technology in automobile industry. It is driven by reduction on the level of vibration and noise in powertrain system. However, the hidden problems in automobile parts become noticeable since the vehicle has been better in overall performance. One of them is related to the fuel pump system. Therefore, this study is focused on investigating the characteristics of fuel pump and fuel tank first, and then comparing the data before and after installation of fuel pump system in a testing vehicle. Additionally, the measured data will be analyzed to identify the problems and find a solution to improve the level of noise and vibration in fuel pump system.

• Journal of Astronomy and Space Sciences
• /
• v.33 no.2
• /
• pp.101-104
• /
• 2016

More than 100 γ−ray pulsars have been discovered by the Fermi Gamma-ray Space Telescope. With a significantly enlarged sample size, it is possible to compare the properties of different classes. Radio-quiet (RQ) γ−ray pulsars form a distinct population, and various studies have shown that the properties of the RQ population can be intrinsically different from those of radio-loud (RL) pulsars. Utilizing these differences, it is possible to further classify the pulsar-like unidentified γ−ray sources into sub-groups. In this study, we suggest the possibility of distinguishing RQ/RL pulsars by their spectral shape. We compute the probabilities of a pulsar to be RQ or RL for a given spectral curvature. This can provide a key to the estimation of the intrinsic fraction of radio-quietness in the γ−ray pulsar population, which can place a tight constraint on the emission geometry.

• Journal of the Korean Society of Manufacturing Technology Engineers
• /
• v.20 no.5
• /
• pp.612-617
• /
• 2011

The comfort and quietness of vehicle has been improved greatly due to the development of technology in automobile industry. Some of noise reductions, for example, are driven by the improvement in the power-train system. Due to better in all performance, it is required to reduce more noise in automobile components. One of them is related to the fuel pump system including a pump and a tank. Therefore, this study is focused on investigating the characteristics of fuel pump and fuel tank first, and then comparing the data before and after installation of fuel pump system in a testing vehicle. Additionally, the measured data will be analyzed to identify the problems and provide knowledge to reduce the level of noise and vibration in fuel pump system.