• The International Journal of Costume Culture
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• v.3 no.3
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• pp.246-261
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• 2000

The purpose of this study was to investigate the apparel purchasing behavior of adult women consumer groups divided by materialism. The specific objects of this study were ; 1) to examine the degree of materialism, impulsive buying, and conspicuous consumption. 2) to examine the correlation between impulsive buying, materialism, and conspicuous consumption, and to examine the relative influences of impulsive buying, materialism affecting conspicuous consumption. 3) to classify groups according to the level of the propensity for materialism, and to examine the clothing purchasing behavior of the divided groups. Data were administered to 357 adult women living in Sunchol from June to July 1999. For analysis of the data, factor analysis, one-way ANOVE, duncan's multiple range test, frequency and χ²-test were employed. The results of this study were summarized as follows. 1. Materialism and impulsive buying have shown higher than middle score, and conspicuous consumption has shown similar to middle score. 2. The correlation between materialism, impulsive buying, and conspicuous consumption has shown similar to middle score. The higher the materialism and experience of impulsive buying was, the higher was the conspicuous consumption. According to the results of regression analysis examining the relative influence of variables affecting conspicuous consumption. According to the results of regression analysis examining the relative influence of variables affecting conspicuous consumption, the relative importance of the variables were in the order of ; success-symbolic materialism, life-centered materialism, happiness-pursuing materialism, in the order of ; success-symbolic materialism, life-centered materialism, happiness-pursuing materialism, impulsive buying and their explanatory power totalled 35.2%. 3. Evaluating attributes of product, the type of purchasing store, the place of purchasing, the need of high class department store, purchasing price range, and accompanying people when purchasing were the factors influencing the apparel purchasing behavior.

• Journal of Advanced Navigation Technology
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• v.24 no.6
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• pp.587-592
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• 2020

The giant information exchange enabled by the Internet of Things paradigm will likely exploit electrical lines as a ready-to-use infrastructure. The advantage of using the pre-installed infrastructure of wiring networks makes power line communication a competitive technology for broad-band communications. Therefore, there has been a growing interest towards the use of existing power line communication channels as an effective means for transmitting high speed data and Internet service. One of the main noise types affecting power line communication systems is the impulsive noise, and the focus of this work is on the impact of this impulsive noise on the performance of OFDM-QPSK systems. For the performance analysis of impulsive noise, data measured in three environments were used. Through the analysis, it is shown that OFDM-QPSK system outperforms QPSK system for most of the impulsive noise cases. Also, RS-coded OFDM-QPSK system can achieve good BER performance under 3 cases impulsive noise environment.

• 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.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.18 no.5
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• pp.1051-1060
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• 2014

In this paper, performance of an orthogonal frequency division multiplexing (OFDM) system in an impulsive noise environment is analyzed. Here, it is verified that performance of the OFDM system with window nonlinearity, which is one of the impulsive noise mitigation algorithms, is dependent on the over-sampling rate and the size of window. With respect to the variation of those parameters, we also provide an appropriate region of threshold values that control amplitudes of the sampled waveform of received signals. As a result, a new combination of parameters which improves error performance of OFDM system in an impulsive noise environment as compared to the previously reported parameters is presented.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.40 no.12
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• pp.2324-2330
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• 2015

In blind signal processing in impulsive noise environment the maximum cross-correntropy (MCC) algorithm shows superior performance compared to MSE-based algorithms. But optimum weight conditions of MCC algorithm and its properties related with robustness to impulsive noise have not been studied sufficiently. In this paper, through the analysis of the behavior of its optimum weight and the relationship with the MSE-based LMS algorithm, it is shown that the optimum weight of MCC and MSE-based LMS have an equal solution. Also the factor that keeps optimum weight of MCC undisturbed and stable under impulsive noise is proven to be the magnitude controlled input through simulation.

• 한국정보디스플레이학회:학술대회논문집
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• 2004.08a
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• pp.1049-1052
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• 2004

In general, contrary to the CRTs with impulsive emission, liquid crystal displays have motion artifacts such as blurring. ghost image, decrease of dynamic CR(contrast ratio), and stroboscopic motion due to hold type driving method. In this paper, to improve motion picture quality of LCDs. impulsive driving method of black data insertion was applied to the OCB mode which is well known for its fast LC response time and wide viewing angle properties. Subject evaluation was carried out with CRT, TN, SIPS(Super IPS). and impulsive driving OCB. Moving picture image quality near CRT was obtained in impulsive OCB driving mode

• Journal of the Korean Society of Clothing and Textiles
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• v.34 no.3
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• pp.424-436
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• 2010

This study tests the relation of various fashion-related features of young male consumers. Clothing involvement, fashion involvement, fashion innovativeness, impulsive buying, and brand loyalty have been considered as focal variables in understanding consumer attitudes & behaviors toward fashion. This study proposed hypotheses on the relationships among these variables and tests them with survey data from a convenient sample of male university students. A total 195 complete responses were obtained from young men between 18 and 27 years of age. The results are as follows. First, fashion involvement and clothing involvement significantly (+) affected fashion innovativeness, and fashion innovativeness also significantly (+) affected impulsive buying and brand loyalty. Second, impulsive buying insignificantly affected brand loyalty. Third, the groups of young men divided by the demographical variables partially showed meaningful differences in fashion-related variables of interest. This study investigates the relationships among various fashion variables that have been used as critical explaining variables for fashion attitudes and behaviors, especially for young male consumers.

• Journal of the Korean Society for Industrial and Applied Mathematics
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• v.14 no.4
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• pp.225-247
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• 2010

In this paper, we establish a two-competitive-prey and one-predator Holling type II system by introducing a proportional periodic impulsive harvesting for all species and a constant periodic releasing, or immigrating, for the predator at different fixed time. We show the boundedness of the system and find conditions for the local and global stabilities of two-prey-free periodic solutions by using Floquet theory for the impulsive differential equation, small amplitude perturbation skills and comparison techniques. Also, we prove that the system is permanent under some conditions and give sufficient conditions under which one of the two preys is extinct and the remaining two species are permanent. In addition, we take account of the system with seasonality as a periodic forcing term in the intrinsic growth rate of prey population and then find conditions for the stability of the two-prey-free periodic solutions and for the permanence of this system. We discuss the complex dynamical aspects of these systems via bifurcation diagrams.

• Journal of Distribution Science
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• v.18 no.9
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• pp.55-65
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• 2020

Purpose: The research aims to examine whether perception about busyness can affect the way people view themselves and then make an impact on purchase decision-making. Based on a proposed theoretical framework, the current research examines whether or not perception about busyness affects perceived self-worth and has an impact on impulsive buying. Research design, data, and methodology: The paper conducted a survey in which two scenarios are used for manipulating degree of busy mindset. For analyzing data, analysis of variance and regression analysis are applied, in conjunction with analysis of moderating effects. Results: Busy mindset has a positive effect on perceived self-worth. The effect of busy mindset on perceived self-worth is greater in the group of high perceived social mobility. In the category of hedonic products, perceived self-worth has a positive effect on impulsive buying intention. Conclusions: These results imply that a sense of self-worth can affect impulsive buying behavior on the basis that people sometimes buy things on impulse as a way of self-indulgence or self-reward for their efforts. Managerial implications of the results suggest a busy appeal to consumers would be more effective for hedonic products.

• Toxicological Research
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• v.32 no.4
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• pp.275-280
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• 2016

Prenatal nicotine exposure over an entire pregnancy has been associated with an increased prevalence of hyperactivity, anxiety-like behavior and depression-like behavior in mature rats. However, the effects of maternal nicotine exposure in late gestation and lactation on the psychology and behavior of adolescent rat offspring are unclear. Thus, we investigated the effect of nicotine exposure during late gestation and lactation on anxiety-like and impulsive decision-making behavior in adolescent offspring of rat. Female rats were orally exposed to nicotine which is within range of plasma level of human chronic smokers during the period of third last period of gestation and lactation. When the offspring were weaned, we observed alterations in the anxiety-like behavior and decision-making ability of adolescent rat offspring using light/dark box test and T-maze delay-based cost-benefit decision-making task. The maternal consumption of nicotine reduced both the time spent in the light compartment and the number of transitions compared to nicotine-free rats. Moreover, such nicotine exposed adolescent offspring rats showed impulsive decision making which chose the instant reward in a decision-making situation. We found that nicotine exposure during late gestation and lactation induces an increase in anxiety-like and impulsive decision-making behavior at this developmental stage. These findings suggest that maternal nicotine-exposed offspring are at an increased risk of developing anxious and impulsive behavior.