• 한국정보시스템학회지:정보시스템연구
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• 제31권4호
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• pp.209-232
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• 2022

Purpose In the current environment of online shopping, the cost for consumers to obtain the information they need is decreasing, and the price of products is becoming more transparent, leading to increased price competition among enterprises for similar products. Given the widespread usage of limited-time promotion as a marketing method for enterprises in the context of e-commerce, it is great meaning to study and reveal the internal influence mechanism of limited-time promotion on consumers' impulsive consumption. Design/methodology/approach Based on the S-O-R theory, this study constructs a model of consumers' impulsive consumption in the context of e-commerce from the perspective of perceived price discount, with evoking sense and pleasure as mediating variables and perceived time pressure as moderating variables. Findings The results show that perceived price discount has a significant positive impact on evoking sense and pleasure. Evoking sense has a significant positive impact on pleasure. Both evoking sense and pleasure have a significant positive impact on consumers' impulsive consumption. Meanwhile, perceived time pressure plays a significant moderating role between perceived price discount and evoking sense, between perceived price discount and pleasure, and between evoking sense and consumers' impulsive consumption. Finally, based on the above findings, this study provides effective suggestions for e-commerce participants in the formulation of limited-time promotion strategies.

• 한국콘텐츠학회논문지
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• 제22권3호
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• pp.361-368
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• 2022

최근 각광을 받는 브랜드간 콜라보레이션이나 한정판 마케팅 등의 새로운 마케팅 기법에 대해서 학술적인 연구가 제한되어 있는 실정이다. 본 연구에서는 기존 대형 브랜드를 대상으로만 분석된 한정판매 마케팅 기법이 소규모 브랜드에 적용되었을 때, 어떤 효과를 가져오는지를 분석하는 것을 목표로 하였다. 실증 분석을 위해 연간 매출이 1,200만원 정도인 소규모 브랜드에서 한정판 제품을 출시하고, 일주일이라는 짧은 기간에 인스타그램을 통한 소셜 마케팅을 수행하였다. 그 결과 이 브랜드의 매출은 전년보다 10배의 매출 성장을 기록하였다. 이 연구를 통해 대형 브랜드뿐 아니라 소규모 브랜드에서도 한정판 마케팅이 브랜드 인지도와 매출 증대에 유의미한 영향을 가질 수 있음을 확인하였다.

• 대한전기학회논문지:전력기술부문A
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• 제48권5호
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• pp.658-663
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• 1999

2D sliced CT images hardly express the human disease in a space. This space expression can be reconstructed into 3D image by piling up the CT sliced image in succession. In medical image, in order to get the reconstructed 3D images, expensive system or much calculation time is needed. But by changing the method of reconstruction procedure and limit the range, the reconstruction time could be reduced. In this study, to reduce the processing time and memory, we suggested a method of interpolation and ray casting processing at the same time in a limited range. Such a limited range processing have advantages that we could reduce the unnecessary interpolation and ray casting. Through a experiment, it is founded that the reconstruction time and the memory was much reduced.

• Journal of Information Technology Applications and Management
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• 제12권1호
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• pp.111-123
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• 2005

Many indexing methods were proposed so that process moving object efficiently. Among them, indexing methods like the 3D R-tree treat temporal and spatial domain as the same. Actually, however. both domain had better process separately because of difference in character and unit. Especially in this paper we deal with limited region such as indoor environment since spatial domain is limited but temporal domain is grown. In this paper we present a novel indexing structure, namely STS-tree(Separation of Time and Space tree). based on limited region. STS-tree is a hybrid tree structure which consists of R-tree and one-dimensional TB-tree. The R-tree component indexes static object and spatial information such as topography of the space. The TB-tree component indexes moving object and temporal information.

• 한국통신학회논문지
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• 제33권11A호
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• pp.1043-1052
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• 2008

본 논문에서는 간섭 제한적인 환경의 OFDM 시스템에서 시공간 부호화 기술과 순환지연 다이버시티 기술의 성능을 비교한다. 통신 시스템은 다이버시티 기술을 보통 자신의 성능을 향상시키기 위하여 사용하지만 시스템이 간섭 제한적인 환경에서 동작된다면 다른 사용자에게 미치는 영향도 함께 고려해야 한다. 다른 사용자와의 간섭을 고려하지 않을 때 시공간 부호화 기술은 순환지연 다이버시티 기술보다 우수한 성능을 보이지만 다른 사용자에게 미치는 영향을 함께 고려할 때는 순환지연 다이버시티를 사용하는 것이 더 우수한 성능을 보일 수 있다.

• 한국의류산업학회지
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• 제23권4호
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• pp.448-457
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• 2021

This study aimed to identify messages that induce positive product attitudes and purchase intentions among luxury consumers in online luxury sales. Message types elicited from luxury products were classified as quantity-limited, time-limited, sustainability, and personalization. A total of 150 participants were recruited through a Google survey, and all respondents were randomly assigned to respond to one of five stimuli (quantity-limited, time-limited, sustainability, personalization, and control). Participants were informed that they would be engaging in luxury online shopping and read a description about it. Results showed that message attitude, product attitude, and purchase intention were positively formed with the quantity-limited and personalization message types. Furthermore, we discovered the underlying mechanism for quantity-limited and personalization messages increasing favorable message attitudes and it affected the product attitude. Finally, it increased the purchase intention of the product. By confirming purchase intentions according to message types for luxury brands, we have expanded the scope of advertising research to include online luxury sales platforms. Since luxury online shopping is inevitable, this study suggests that the effective use of message types such as quantitylimited and personalization would improve online sales.

• JSTS:Journal of Semiconductor Technology and Science
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• 제13권2호
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• pp.87-97
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• 2013

Negative bias temperature instability (NBTI) and positive bias temperature instability (PBTI) are critical circuit reliability issues in highly scaled CMOS technologies. In this paper, we analyze the impacts of NBTI and PBTI on SRAM $V_{MIN}$, and present a design solution for mitigating the impact of NBTI and PBTI on SRAM $V_{MIN}$. Two different types of SRAM $V_{MIN}$ (SNM-limited $V_{MIN}$ and time-limited $V_{MIN}$) are explained. Simulation results show that SNM-limited $V_{MIN}$ is more sensitive to NBTI while time-limited $V_{MIN}$ is more prone to suffer from PBTI effect. The proposed NBTI/PBTI-aware control of wordline pulse width and woldline voltage improves cell stability, and mitigates the $V_{MIN}$ degradation induced by NBTI/PBTI.

• 산업경영시스템학회지
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• 제21권47호
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• pp.57-68
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• 1998

Work environments have been changed with the advent of new technologies, such as computer technology. However, human cognitive limits can't pace up with the change of work environment. Designing human-computer system requires knowledge and evaluation of the human cognitive processes which control information flow workload. Futhermore, under limited reaction time and/or urgent situation, human operator may the work stress, work error and resultant deleterious work environment. This paper evaluate the visual factors of major information processing factors(information density, amount of information, operational speed of speed)on operator performance of supervisory control under urgent(limited reaction time)environments which require deleterious work condition. To describe the work performance int the urgent work situations with time stress and dynamic event occurrence, a new concept of information density was introduced. For a series of experiments performed for this study, three independent variables(information amount, system proceeding speed, information density) were evaluated using five dependent variables. The result of statistical analyses indicate that the amount of information affected on all of five dependent measure. Number of failure and number of secondary task score were influenced by both amount of information and operational speed of system. However reaction time of secondary task were affected by both amount of information and information density. As a result, the deleterious factors for the performances seemed to be a scanning time to supervise each control panel. Consequently, a new display panel was suggest to reduce operator work load for scanning task showing better operator performance.

• 전자공학회논문지B
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• 제29B권11호
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• pp.36-45
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• 1992

A numerical trajectory planning method for path-constrained trajectory planning is proposed which ensures collision-free and time-optimal motions for two robotic manipulators with limited actuator torques and velocities. For each robot, physical constraints of the robots such as limited torques or limited rotational velocities of the actuators are converted to the constraints on velocity and acceleration along the path, which is described by a scalar variable denoting the traveled distance from starting point. Collision region is determined on the coordination space according to the kinematic structures and the geometry of the paths of the robots. An Extended Coordination Space is then constructed` an element of the space determines the postures and the velocities of the robots, and all the constraints described before are transformed to some constraints on the behaviour of the coordination-velocity curves in the space. A dynamic programming technique is them provided with on the discretized Extended Coordination Space to derive a collision-free and time-optimal trajectory pair. Numerical example is included.

• Journal of Information Technology Applications and Management
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• 제22권2호
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• pp.1-17
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• 2015

In this research, we develop and suggest branch and bound algorithms for a two-machine permutation flowshop scheduling problem with the objective of minimizing makespan. In this scheduling problem, after each job is operated on the machine 1 (first machine), the job has to start its second operation on machine 2 (second machine) within its corresponding limited waiting time. In addition, each job has its corresponding ready time at the machine 1. For this scheduling problem, we develop various dominance properties and three lower bounding schemes, which are used for the suggested branch and bound algorithm. In the results of computational tests, the branch and bound algorithms with dominance properties and lower bounding schemes, which are suggested in this paper, can give optimal solution within shorter CPU times than the branch and bound algorithms without those. Therefore, we can say that the suggested dominance properties and lower bounding schemes are efficient.