• The Journal of Information Technology
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• v.8 no.4
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• pp.65-74
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• 2005

The central purpose of this paper is to examine impulsive buying from home shopping channels and to investigate some stimulating factors of marketing on the customers' impulsive buying. on TV. Survey questionnaires were given to 303 customers who have purchased products through TV home shopping more than once. We report the following findings. First, we find that product stimuli factors exert an effect on impulsive buying of fashion goods, but not of specialty goods. Second, of the two promotion stimuli factors a bonus pack and an extended payment period-the latter is shown to have a great effect. Third, in the case of price stimuli factors, concrete stimuli such as a discount range have a greater influence than abstract stimuli such as a reliable pricing. Finally, in the area of situational stimuli factors, speeches of show hosts have a bigger impact than buying situations such as limit selling. We believe that the current research provides a significant result, theoretically and practically, with respect to customers' behavior in TV home shopping. The methodological limitation involving samples and sampling method and the regional limitation make it difficult to generalize the findings. It should be worthy classifying and managing marketing stimuli. More practical research is in order.

• Transactions of the Korean Society of Mechanical Engineers B
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• v.21 no.11
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• pp.1403-1412
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• 1997

When a high-speed railway train enters a tunnel, a compression wave is generated ahead of the train and propagates through the tunnel, compressing and accelerating the rest air in front of the wave. At the exit of the tunnel, an impulsive wave is emitted outward toward the surrounding, which causes a positive impulsive noise like a kind of sonic boom produced by a supersonic aircraft. With the advent of high-speed train, such an impulsive noise can be large enough to cause the noise problem, unless some attempts are made to alleviate its pressure levels. In the purpose of the impulsive noise reduction, the present study calculated the effect of porous walls on the compression wave propagating into a model tunnel. Two-dimensional unsteady compressible equations were differenced by using a Piecewise Linear Method. Calculation results show that the cavity/porous wall system is very effective for a compression wave with a large nonlinear effect. The porosity of 30% is most effective for the reduction of the maximum pressure gradient of the compression wave front. The present calculation results are in a good agreement with experimental ones obtained previously.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2005.05a
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• pp.890-895
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• 2005

This paper presents the dynamic analysis of a cantilever beam undertaking impulsive force that undergoes rigid body motion. The transient response of the beam induced by the impulsive force and the rigid body motion is calculated based on hybrid deformation variable modeling method by applying the Rayleigh-Ritz assumed mode method. The stiffness variation effect caused by the rigid body motion is considered in this modeling. The effects of the impulsive force position and the angular velocity on the transient responses of the beam are investigated through numerical studies.

• Journal of Mechanical Science and Technology
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• v.19 no.2
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• pp.605-617
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• 2005

A sudden discharge of mass flow from the exit of a duct can generate an impulsive wave, generally leading to undesirable noise and vibration problems. The present study develops an understanding of unsteady flow physics with regard to the impulsive wave discharged from a duct, using a numerical method. A second order total variation diminishing scheme is employed to solve three-dimensional, unsteady, compressible Euler equations. Computations are performed for several exit conditions with and without ground and wall effects under a change in the Mach number of an initial shock wave from 1.1 to 1.5. The results obtained show that the directivity and magnitude of the impulsive wave discharged from the duct are significantly influenced by the initial shock Mach number and by the presence of the ground and walls.

• Transactions of the Korean Society for Noise and Vibration Engineering
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• v.19 no.9
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• pp.928-934
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• 2009

Underwater impulsive sound such as underwater blasting noise, piling noise and stone breaking hammer affects marine animal hearing response and organs. This study describes the characteristics of various impulsive noise from waterfront construction site and their effect on fish. Time constant, peak pressure, energy and SEL(sound exposure level) of four different underwater impulsive sounds are quantified. Auditory and non-auditory tissue damage ranges are derived by comparing their quantities to the exposure criteria for fish. Damage ranges of auditory tissue and non-auditory tissue of underwater boring blast of 150 kg of charge, are about 100 m and 300 m, respectively. Other three impulsive sounds also gives damage effects but less than that of underwater boring blast.

• Journal of applied mathematics & informatics
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• v.29 no.5_6
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• pp.1381-1393
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• 2011

In this paper, we consider two-species periodic Gilpin-Ayala competition system with delay and impulsive effect. By using some analysis methods, sufficient conditions for the permanence of the system are derived. Further, we give the conditions of the existence and global asymptotic stable of positive periodic solution.

• Journal of the Korea Society of Computer and Information
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• v.16 no.7
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• pp.173-181
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• 2011

This study investigated the effects of self concept on impulsive purchase and after-buying emotional response. For these purposes, researcher compared the impulsive purchasing and after-buying emotional response by socially independent-dependent groups in self concept. The results of present research were as follow: First, impulsive purchase led to high after-buying emotional response such as guilt, regret, happiness, but it did not in pride. non-impulsive purchase led to high pride. Second, socially independent self concept led high impulsive purchase. Third, socially independent self concept moderated the effect of impulsive buying on guilt, regret, happiness, but it did not in pride also. These results show that socially independent consumers in self concept purchase cell-phone impulsively and have high guilt, regret, happiness in after-buying emotion. But the low pride would be interpreted that they don't think their impulsive purchases desirable.

• Journal of Korea Society of Digital Industry and Information Management
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• v.13 no.1
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• pp.135-145
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• 2017

Distribution of online media sharply accelerated in the modern society, leading to robust increase in the time where individuals spend their leisure time on the Internet. One of the most popular entertainments among this is the video game industry, which gradually came to possess the characteristics like violence, cruelty, gambling, and sexuality, in order to gain attention. This study aims to investigate the addiction characteristics of users of domestic online games and to verify the causal relationship of these factors on the factors that affect impulsive crimes through Self-control. For practical verification of this study, survey was conducted for students of W High School in Incheon. This study is meaningful in that it prepared a theoretical foundation in the process of inferring criminal intent for impulsive crimes based on the effects of online games on impulsiveness, aggression, and addiction. It is also significant in that it presented a new mechanism that ego control, which occurred in the process of presenting a new variable of negative effect of online game on the criminal intent of impulsive crime, affects impulsive crime.

• Journal of the Korean Home Economics Association
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• v.48 no.8
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• pp.99-111
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• 2010

The purpose of this study was to identify the factors, which influence impulsive buying at duty-free shops. This involved an investigation into the effects of demographic characteristics, the types of purchased items, and the situational and emotional factors affecting impulsive purchasing behaviour in consumers, who had bought items from duty free shops in the past three years. The findings are as follows. Firstly, while beverage and cosmetic items were found to encourage impulse buying, in general demographic variables and type of product had only a slight influence. Secondly, the situational factors of price benefits, overseas luxury branding, and ease of access in the duty free shopping area all had a definite positive influence. Thirdly, with regard to emotional factors, positive emotion was found to have strong augmenting effect on impulsive purchasing. The findings can be used in the development of educational materials to prevent impulsive purchasing and promote sensible consumer behaviour.

• Transactions of the Korean Society of Mechanical Engineers B
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• v.28 no.7
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• pp.850-856
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• 2004

When a shock wave arrives at the open end of a tube, an impulsive wave is discharged from the tube exit and causes serious noise and vibration problems. In the current study, the effect of the cross-sectional area of a circular tube on the impulsive wave is investigated using computational methods. Marten-Yee's TVD scheme was employed to solve axisymmetric, unsteady, compressible Euler equations. With a change in the cross-sectional area of the tube, the Mach number of an incident shock wave is varied between 1.01 and 1.50. The results obtained show that the magnitude of the impulsive wave strongly depends upon the Mach number of the incident shock wave and the cross-sectional area of the tube. It is also found that for a given cross-sectional area of the tube, the impulse wave has strong directivity to the tube axis.