Jongheon Kim

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Keywords: Internet shopping System quality Information quality Service quality Customer satisfaction Utilitarian shopping value Hedonic shopping value Repurchase intention a b s t r a c t This research empirically examines the effect of various Internet shopping site qualities on the utilitarian and hedonic values of Internet shopping. The influence of the(More)
Previous research suggests that computer security countermeasures would be effective in preventing computer abuse in organizations. However, computer abuse problems still persist despite these efforts. This study proposes a new model of computer abuse that explains a causal link between abusive behavior and a psychological state toward this behavior, drawn(More)
The City of Philadelphia adopted an ambitious broadband internet plan to provide the city with comprehensive wireless coverage. The decision to adopt this project involved a tradeoff between the benefit of high-speed service to all residents and cost of the project. The project represents breaking a relatively new ground, with few experiences of other(More)
This paper proposes a novel vision-based jellyfish detection algorithm in underwater environment. Since jellyfish, especially Aurelia aurita, is translucent and amorphous when projected to the 2-dimensional image, its boundary is indistinct and detecting jellyfish is very challenging. To detect moving jellyfish, two types of features that present the(More)
As the importance of unconventional resource grows, the demand for the directional drilling technology is increasing. One of the key technologies of the directional drilling is a rotary steerable system (RSS). Among several types of RSS developed so far, `point-the-bit' and `push-the-bit' are the most commonly used ones. In this paper, a new rotary(More)
This paper presents a novel auto-focusing system based on a CMOS sensor containing pixels with different phases. Robust extraction of features in a severely defocused image is the fundamental problem of a phase-difference auto-focusing system. In order to solve this problem, a multi-resolution feature extraction algorithm is proposed. Given the extracted(More)
The directional drilling system is one of the key technologies for developing unconventional resources such as shale gas and coal bed methane (CBM). There are several types of the directional drilling system such as the whipstock, bent-sub, and the rotary steerable system (RSS). Among these systems, the RSS is most advanced system. In this paper, the hybrid(More)