• Proceedings of the Korea Technology Innovation Society Conference
• /
• 2000.05a
• /
• pp.208-225
• /
• 2000

인터넷 이용자의 급속한 증가에 따라 인터넷을 이용한 새로운 비즈니스 모델들이 급격히 증가하는 추세를 보이고 있다. 이러한 새로운 비즈니스 모델들은 사업추진을 위한 방법에 있어서 컴퓨터 기술 등 일정 부분 기술적인 속성들을 내재하고 응용하고 있다는 점에 착안하여 비즈니스 모델에 대한 특허를 부여하고 있다. 그러나, 미국, 일본 등 선진국 뿐만 아니라 최근에는 우리나라에서도 적극적으로 검토되고 있는 비즈니스 모델에 대한 특허부여는 인터넷 기술의 급속한 진보와 인터넷이 네트워크를 매개로 자유로운 정보공유를 목적으로 출발하였다는 점, 영업방법에 대한 특허를 부여할 경우 그 영업분야에 대한 사실상의 독점인정이 될 것이라는 점 등 다양한 측면에서 비판적인 의견들이 제기되고 있다. 비즈니스 모델에 대한 특허부여는 인터넷을 이용하여 전세계를 그 영업대상으로 한다는 점에서 영업범위가 매우 광범위 하다는 점 및 파급효과의 즉시성 등의 특성으로 인하여 우리나라 뿐만 아니라 범세계적 차원에서 공동의 논의의 장과 규범을 마련해 나가야 할 것이다. 본 고에서는 특허청 등 특허관련 업계와 인터넷 서비스 업계 등을 중심으로 산발적으로 다루어지고 있는 비즈니스 모델 특허의 개념정의와 요건, 최근의 비즈니스 모델 특허관련 전개동향, 논점 등에 대해 살펴보고, 우리의 전략적 대응방안을 제시한다.

• Geotechnical Engineering
• /
• v.10 no.1
• /
• pp.47-62
• /
• 1994

It has been well known that the rainfall-triggered rise of groundwater levels is one of the most important factors resulting the instability of the hillside slopes. Thus, the prediction of porewater pressure is an essential step in the evaluation of landslide hazard. This study involves the development and verification of numerical groundwater flow model for the prediction of groundwater flow fluctuations accounting for both of unsatu나toed flow and saturated flow on steep hillside slopes. The first part of this study is to develop a nomerical groundwater flow model. The numerical technique chosen for this study is the finitro element method in combination with the finite difference method. The finite element method is used to transform the space derivatives and the finite difference method is used to discretize the time domain. The second part of this study is to estimate the unknown model parameters used in the proposed numerical model. There were three parameters to be estimated from input -output record $K_e$, $\psi_e$, b. The Maximum -A-Posteriori(MAP) optimization method is utilized for this purpose, . The developed model is applied to a site in Korea where two debris avalanches of large scale and many landslides of small scale were occurred. The results of example analysis show that the numerical groundwater flow model has a capacity of predicting the fluctuation of groundwater levels due to rainfall reasonably well.

• Journal of Korea Multimedia Society
• /
• v.6 no.1
• /
• pp.136-147
• /
• 2003

To achieve an optimal performance for a given problem, we need an integrative process of the parameter optimization via learning and the structure optimization via model selection. In this paper, we propose an efficient optimization method for improving generalization performance by considering the property of each sub-method and by combining them with common theoretical properties. First, weight parameters are optimized by natural gradient teaming with adaptive regularization, which uses a diverse error function. Second, the network structure is optimized by eliminating unnecessary parameters with natural pruning. Through iterating these processes, candidate models are constructed and evaluated based on the Bayesian Information Criterion so that an optimal one is finally selected. Through computational experiments on benchmark problems, we confirm the weight parameter and structure optimization performance of the proposed method.

• The Journal of the Korea Contents Association
• /
• v.14 no.11
• /
• pp.915-929
• /
• 2014

The purpose of this study was to explore organizational justice (distributive, procedural, and interactional justice) as the antecedent of and career satisfaction by conducting an integrative literature review. In addition, this study aimed to identify organizational support for career development (i.e., organizational sponsorship) as the potential mediating variable between organizational justice and career satisfaction. Based on an integrative literature review of previous research, this study proposed the conceptual model on the relationship between organizational justice and career satisfaction along with organizational support for career development. According to the conceptual model, organizational justice can add to the pool of important antecedents of career satisfaction, and organizational support for career development could mediate the relationship between organizational justice and career satisfaction. This study contributed to the human resource development (HRD) field through investigating the relationship between organizational justice and career satisfaction in a career development context in the workplace. Further, this study provided additional theoretical backgrounds to conduct organizational justice related research on diverse factors, such as potential mediating variables, influencing career satisfaction.

• Journal of the Korean Vacuum Society
• /
• v.21 no.5
• /
• pp.249-257
• /
• 2012

Nonlinear dynamical behaviors of plasma in the Pierce diode are investigated by a numerical code developed using a one dimensional fluid model. The plasma in Pierce diode is alternately stable and unstable as Pierce parameter is changed. The dynamical characteristics of neutral and non-neutral Pierce system is examined analytically and numerically. It alternately has growing and oscillatory mode as Pierce parameter varies. As Pierce parameter is decreased, each oscillatory mode undergoes a sequence of subharmonic period-doubling bifurcation and then culminate in a chaotic strange attractor. The analysis for this nonlinear behavior can be used as a model for understanding of beam-plasma interaction in more complex geometries and a data for chaos control.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.29 no.3C
• /
• pp.419-425
• /
• 2004

This paper presents a new method which is calculated to use only three vanishing points in order to compute the dimensions of object and its pose from a single image of perspective projection taken by a camera. Our approach is to only compute three vanishing points without informations such as the focal length and rotation matrix from images in the case of perspective projection. We assume that the object can be modeled as a linear function of a dimension vector v. The input of reconstruction is a set of correspondences between features in the model and features in the image. To minimize each the dimensions of the parameterized models, this reconstruction of optimization can be solved by standard nonlinear optimization techniques with a multi-start method which generates multiple starting points for the optimizer by sampling the parameter space uniformly.

• Journal of Technology Innovation
• /
• v.22 no.2
• /
• pp.247-285
• /
• 2014

Despite the important role of the transformational leadership and Creative Climate to achieve firms' sustainable competitive advantage, there has been limited empirical studies linking the transformational leadership and creative climate in employee's innovative performance. This study investigated the impact of transformational leadership on innovative performance based on employees of R&D department in IT services. This paper also investigated the mediating role of creative climate and moderating role of employee's innovative tendency in this relationship. Main findings of our empirical analysis are as follows. While the relationships between transformational leadership and innovative performance was positively associated, creative climate had positive effect on innovative performance. As expected, we also found that the creative climate had positively mediated the relationship between transformational leadership and innovative performance. Also, the innovative tendency has statistically significant moderating effect on this relationship. Based on the findings, we have suggested theoretical and practical implications while future research directions with limitations of the research are discussed.

• Journal of the Korean Geosynthetics Society
• /
• v.12 no.3
• /
• pp.55-64
• /
• 2013

In this study, a series of the isotropic compression-expansion tests and the Undrained triaxial tests were performed on low-plastic silt of Pocheon stone sludge. Using the tests results the characteristic of the parameters of Lade's single hardening constitutive model were investigated. We also observed that predicted values from the Lade's single hardening constitutive model were well consistent with the observed data. In experimental results the deviator stress showed the work hardening behaviour after reaching its yield stress. Therefore practically useful failure criterion for low-plastic silt were required. The stress-strain behavior predicted by 11 soil parameters are compared with the results obtained 9 parameters by correlation between h and ${\eta}_1$ and constant ${\alpha}$. They are poor matched each other.

• Journal of the Korean Institute of Intelligent Systems
• /
• v.27 no.2
• /
• pp.150-156
• /
• 2017

In July, 2015, the Korean national assembly passed 'Act on Capital Markets and Financial Investments,' and therefore, it was expected that the crowd funding would be activated owing to a variety of fundraisings and investments. Hence, for the success of the crowd funding, this paper tried to identify the factors affecting the funding. In this study we analyzed the core variables of the Unified Theory of Acceptance and Use of Technology(UTAUT) and their perceived risks on the crowd funding participants' intentions as well as the mediating effects of the attitudes; the core variables of UTAUT were performance expectancy, perceived risk, facilitating conditions, social influence, and the like. As a result, it was found that such facilitating conditions as performance expectancy and social influence would affect crowd funding participants' intention positively, but that effort expectancy and perceived risk would not significantly affect their intention. On the other hand, as a result of testing the mediating effects of the attitudes, it was found that performance expectancy and social influence would have significant mediating effects on participants' intention.

• Journal of Korean Society of Steel Construction
• /
• v.20 no.4
• /
• pp.455-467
• /
• 2008

The dynamic vehicle running tests were performed to analyze dynamic behavioral characteristics such as displacement, strain history loop and vibration acceleration in arch bridges. Also, the validity of the modeling was verified by comparing the results of the tests and those of the structural analysis modeling. With the resonance revision of verified modeling, when the ratio of excited frequencies to natural frequencies exceeds ${1{\pm}0.04}$, the stability of the bridge is obtained. Also, in the event of resonance by speed parameter, the second mode shape is dominant to the dynamic behaviors of arch bridges. It is found that manipulating the parameters involving arch ribs can increase the second mode natural frequency. It makes critical velocity greater than operational velocities to guarantee the stability of arch bridges.