• Journal of Korean Society of Forest Science
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• v.99 no.3
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• pp.368-379
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• 2010

u-Park means national parks with environmentally sound information networks and integrated ubiquitous services are available. u-Park is totally managed based on u-IT (Ubiquitous IT Technologies) which provides ubiquitous service through sophisticated resources of national park and establishments. It is necessary in changing the existing park management system into u-IT based u-Park management system that park managers should accept new technology, u-Park management system, and be able to utilize it. The purposes of this research is to analyze managers' acceptance behavior on ubiquitous computing technology. Technology acceptance model (TAM) was introduced to specifies the causal relationships among variables related to managers' technology acceptance behavior. The hypothesized model was tested by surveying 157 managers at 5 national parks in Korea. TAM accounted for 55.2% of the variance in intention to use. The most important finding is that perceived compatibleness was the most influential variable in determining intention to use. This means that u-Park management system should be compatible with manager's task and business style.

• Journal of Korean Theatre Studies Association
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• no.52
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• pp.61-115
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• 2014

Die vorliegende Arbeit macht die $Theaterst{\ddot{u}}cke$ von Park seit Mitte der 2000er Jahre zu ihrem Forschungsgegenstand. Park stellt nun mannigfaltige Verfahrensweise von dramaturgischer Technik und $Theater{\ddot{a}}sthetik$ zur $Verf{\ddot{u}}gung$, damit er den Zuschauer auf die gesamten $Zust{\ddot{a}}nde$ der $zeitgen{\ddot{o}}ssischen$ Gesellschaft aufmerksam macht und auch die Teilnahme daran beeinflusst. Indessen benutzt Park die Theorie des Lachens im breiten Spektrum. So verbindet er das Lachen jeweils mit der Komik des Grotesken, des Paradoxons und der Satire, um dessen Effekt zu maximalisieren. Und die $Theaterst{\ddot{u}}cke$ von Park mobilisieren die $Performativit{\ddot{a}}t$ aufgrund der Aisthetik, damit sie die Grenzen jener semiotischen Interpretation ${\ddot{u}}berwinden$, die auf der sprachzentrierten $Repr{\ddot{a}}sentation$ basiert. Infolgedessen wird jene Kommunikation aufgrund der sinnlichen Wahrnehmung aktiv $eingef{\ddot{u}}hrt$, die sich anhand des Austausches von Energie und $Atmosph{\ddot{a}}re$ zwischen $B{\ddot{u}}hne$ und Zuschauerraum vollzieht. Darum zeigt die $Theater{\ddot{a}}sthetik$ von Park jene mehreren gemischten Merkmale, die die traditionelle ${\ddot{A}}sthetik$ der $Repr{\ddot{a}}sentation$ mit der Verfahrensweise der ${\ddot{A}}sthetik$ der Postmoderne verbinden. Indem Park mit Hilfe von der mannigfaltigen Verfahrensweise von Dramaturgie und $Theater{\ddot{a}}sthetik$ zu einem experimentellen Versuch zu Theaterformen gelangt, treten in seiner Theaterkunst eben das $zeitgen{\ddot{o}}ssische$ verdinglichte Gesellschaftsbild und zugleich die $Negativit{\ddot{a}}t$ als eine $k{\ddot{u}}nstlerische$ Kritik daran in Erscheinung. Vor dieser Folie versucht die vorliegende Arbeit nicht nur die Dramturgie und $Theater{\ddot{a}}sthetik$ von Park zu erforschen, sondern auch das daraus resultierende $zeitgen{\ddot{o}}ssische$ Gesellschaftsbild wissenschaftlich zu $er{\ddot{o}}rtern$.

• 한국IT서비스학회:학술대회논문집
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• 2009.05a
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• pp.91-105
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• 2009

현 정부는 신성장동력의 녹색기술산업 분야에서 첨단그린도시를 선정하여, 향후 많은 지자체 등에서 앞다투어 U-City 건설을 목표로 많은 서비스를 도입할 것으로 예상된다. 그러나, U-City 서비스, 프로세스, 필요한 H/W 등에 대한 표준화는 이루어져 있지 않은 상황이다. 이에 본 연구에서는 U-City 건설에 활용될 수 있는 IT 기반의 U-City 서비스 개발 방법론을 제안하고자 한다. 이를 위해 본 연구에서는 U-City와 NSD(New Service Development) 방법론들에 대한 문헌연구를 중심으로 U-City Service 개발 방법론 도출을 위한 분석을 하였다. 이러한 U-City 서비스 개발 방법론 연구결과를 통하여 U-City 서비스 도입을 위한 지침서를 제공할 수 있는 토대를 마련할 것이다.

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.48 no.4
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• pp.100-106
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• 2011

u-TSN is a promising technology facilitating road safety and traffic management for drivers and passengers. To deploy this technology in a real environment, personal information and communicated data should be protected against malicious adversaries. Even though such adversaries would appear relatively infrequently, in such cases, the benefits of u-TSN could be disrupted and disabled. Therefore, one of the ultimate goals in the design of secure u-TSN is to protect against attacks of malicious adversaries. In this paper, we present secure communication scenario for u-TSN and implement security protocols and algorithms that are the components of the scenario on an IXP425 board. The security systems, implemented as a security module, supports secure and efficient communication for the u-TSN.

• Journal of the Korean Mathematical Society
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• v.40 no.5
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• pp.769-788
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• 2003

In this paper, we study the optimal control for the damped semilinear hyperbolic systems with unknown parameters (C(t)y')'＋ $A_2$(t, q)y'＋ $A_1$(t, q)y = f(t, q, y, u). We will prove the existence of weak solution of this system and is to find the optimal control pair (q, u) $\in$ $Q_{t}$ ${\times}$ $U_{ad}$ such that in $f_{u}$$\in$ $Q_{t}$/ J(q, u) = J(q, u).$_{t}$/ J(q, u) = J(q, u).

• Bulletin of the Korean Chemical Society
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• v.32 no.12
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• pp.4327-4331
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• 2011

A new method in thermal ionization mass spectrometry (TIMS) was developed to correct peak tailing backgrounds in the isotope ratio measurements of uranium in ultra trace levels for higher accuracy. Two different uranium standard reference materials (U005 and U030) were used to construct databases of signal intensities at mass 234 u and mass 236 u, which correspond to the two uranium minor isotopes, and signal intensity of $^{238}U$. Correlations between peak tailing backgrounds and $^{238}U$ were obtained by least-squares regression on calculated backgrounds at mass 234 u and mass 236 u with respect to the signal intensity of $^{238}U$ followed by separation of the peak tails of the two major isotopes of uranium ($^{235}U$ and $^{238}U$), which enables us to obtain a master equation for peak tailing background correction on all kinds of samples. Verification of the correction method was carried out using U010 and IRMM-040a.

• Korea Multimedia Society
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• v.10 no.2
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• pp.73-83
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• 2006

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2008.06a
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• pp.763-764
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• 2008

• Proceedings of the Optical Society of Korea Conference
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• 2007.07a
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• pp.141-142
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• 2007

• Nuclear Engineering and Technology
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• v.43 no.2
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• pp.159-166
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• 2011

Si-rich-layer-coated U-7 wt%Mo plates were prepared in order to evaluate the diffusion barrier performance of the Si-rich layer in U-Mo vs. Al interdiffusion. Pure Si powder was used for coating the U-Mo plates by annealing at $900^{\circ}C$ for 1 h under vacuum of approximately 1 Pa. Si-rich layers containing more than 60 at% of Si were formed on U-7 wt%Mo plates. Diffusion couple tests were conducted in a muffle furnace at $560-600^{\circ}C$ under vacuum using Si-rich-layer-coated U-Mo plates and pure Al plates. Diffusion couple tests using uncoated U-Mo plates and Al-(0, 2 or 5 wt%)Si plates were also conducted for comparison. Si-rich-layer coatings were more effective in suppressing the interaction during diffusion couple tests between coated U-Mo plate and Al, when compared with U-Mo vs. Al-Si diffusion couples, since only small amounts of Al in the coating could be found after the diffusion couple tests. Si-rich-layer-coated U-7wt%Mo particles were also prepared using the same technique for U-7 wt%Mo plates to observe the microsturctures of the coated particles.