• 제어로봇시스템학회:학술대회논문집
• /
• 2005.06a
• /
• pp.864-867
• /
• 2005

In this paper we introduce a design of parallel architecture for wavelet transformation on FPGA. We implement wavelet transforms though lifting scheme and apply Daubechies4 transform equations. This technique has an advantage that we can obtain perfect reconstruction of the data. We divide our process to high pass filter and low pass filter. With this division, we can find coefficients from low and high pass filters simultaneously using parallel processing properties of FPGA to reduce processing time. From the equations, we have to design real number computation module, referred to IEEE754 standard. We choose 32 bit computation that is fine enough to reconstruct data. After that we arrange the real number module according to Daubechies4 transform though lifting scheme.

• Proceedings of the Korean Society for Technology of Plasticity Conference
• /
• 2006.05a
• /
• pp.81-85
• /
• 2006

In this study, we have been examined nano Injection Molding process which can improve transcription of 100nm-level pattern. We changed the various parameter (temperature of injection mold, clamp force, temperature of nozzle) which can be influence for improving transcription. And we measured and analyzed shapes of 100nm-level pattern by Automic Force Microscope for proving transcription. We made the Blu-ray Disc sample for proving transcription. And we measured HF-Signal and jitter. As a result, when the temperature of mold is more than $120^{\circ}C$ and the clamp force is more than 10 ton, We reached over 95 percent of transcription compared with stamper pattern. And we reached in-spec. value for HF-Signal and Jitter. Then we reached over 95 percent of transcription compared with stamper pattern.

• The Bulletin of The Korean Astronomical Society
• /
• v.41 no.2
• /
• pp.51.1-51.1
• /
• 2016

We revisited a recent dust emission observed at a main-belt asteroid P/2010 A2 in terms of dynamical properties of dust particles and large fragments. This is a continued research that we made a presentation at the Korean Astronomical Society 2016 Spring Meeting, but we have strengthened the dynamical analysis of the ejecta to afford the conclusive evidence for the enigmatic phenomenon. We thus constructed a model to reproduce the morphology of the dust cloud based on the dust dynamics, and succeeded in reproducing the observed morphologies in different epochs over several years. For further analysis, we reconstructed the proper motion of large fragments with respect to the dust emission source estimated from our dust model. We found that (i) the dust cloud morphologies and (ii) observed trajectories of fragments are reasonably explained only when we assumed that both were ejected from a position where no object was detected from any observations. This result suggests that the original body was shattered by an impact, leaving only debris into space. In this presentation, we will compare our results with impact laboratory studies and provide an impact interpretation of the P/2010 A2 activity.

• Publications of The Korean Astronomical Society
• /
• v.9 no.1
• /
• pp.85-100
• /
• 1994

In Korea Astronomy Observatory, we developed a S/W package to compile the Korean Nautical Almanac. We describe the motivation to develop the S/W and explain the S/W package in general terms. In appendix, we describe the procedure to calculate the polaris table in more detail. When we developed the S/W, we paid much attention to produce accurate data. We also made great effort to automate the compilation of Nautical Almanac as far as possible, since the compilation is time consuming and labour extensive. As a result, the S/W we developed turns out to be very accurate and efficient to compile Nautical Almanac. In fact, we could compile a Korean Nautical Almanac in a few days.

• Language and Information
• /
• v.4 no.1
• /
• pp.67-82
• /
• 2000

The purpose of the paper is twofold. First, we revise the well-known Centering Theory of anaphora resolution and propose the controlled Information Packaging Theory (for short, CIPT). Second, we suggest a solution to the resolution of the antecedents of pronouns within the framework of CIPT. For this purpose, we select a dialogue of hotel reservation as a domain-restricted discourse, and discourse, and discuss the characteristics of the distribution of pronouns. We suggest that we need to palce the Slot-Link element on the top of the forward centering list. We claim that we need to establish a constraint on conceptual compatibility. As for the pronouns in the global dialogue, we propose a constraint of discourse command.

• The Journal of Society for e-Business Studies
• /
• v.3 no.2
• /
• pp.161-178
• /
• 1998

We followed the below procedure to establish the development strategy of CITIS standard. At first, we investigated Military CITIS and Commercial CITIS to establish the concept of CITIS and examined several implemented examples. And using the previous analysis, We analyzed the structure of the functions, the technologies and the standards. To establish the development strategy of CITIS standard, we divided CITIS standards into three category, These are infrastrucure standard, data standard and process standard. In the process standard, we analyzed how we develop a formulated process and which item we select to make formulated official documents. And finally, We explained the implementation plan and extension strategy of government-enterprise and inter-enterprise CITIS respectively.

• Korean Business Review
• /
• v.3
• /
• pp.155-182
• /
• 1990

The objective of this study is on evaluation process of resort hotel management strategy. Therefore, in this study, we find try to a successful implemantation of resort hotel feasibility study and management strategy by systematizing and materialinzing the theory of resort hotel. And we have also investigated and analyzed the real status of resort hotel and then worked out the problem, and estabilished a plan for feasibility determination of resort hotel, he results of this study are as follow: 1) We need to characterize, matenance, develop the benefits of resort hotel. 2) We need to know how to establish model and facilities of resort hotel. 3) We have to inclease quality and quantity of employee's service. 4) We need to effort to satisfy customer's needs and wants through improvising and enlarging facilities of resort hotel. 5) We need to specialize the quality of F & B division. 6) We need to improve the hotel image, promote sales through promotion tools like avertisement, publicity, personel selling, sales promotion.

• Journal of the Korea Institute of Military Science and Technology
• /
• v.11 no.3
• /
• pp.58-66
• /
• 2008

In this paper, we have proposed a method and procedure which can find out the unknown network protocol. Although it seems to be difficult to identify the protocol, we can find out the rule in the packet according to the method we have proposed. We have to recognize functions of the system and make the list of events first. Then we capture the network packet whenever the event are occurred. The captured packets are examined by means of the method that is finding repeated parts, changed parts according to the input value, fixed parts and changed parts according to regular rules. Finally we make the test program to verify the protocol. We applied this method and procedure to upgrade Electronic Warfare Test System which is operated by ADD. We have briefly described the redesign of control and analysis software for Electronic Warfare Test System

• Journal of Korean Society for Quality Management
• /
• v.19 no.2
• /
• pp.96-107
• /
• 1991

At the design stage of a plant, the plausible causes and pathways of release of hazardous materials are not clearly known. Thus there exist large amount of uncertainties on the consequences resulting from the operation of a fusion plant. In order to better handle such uncertain circumstances, we utilize the Probabilistic Risk Assessment(PRA) for the safety analyses on fusion power plant. In this paper, we concentrate on the tritium release accident. We develop a simple model that describes the process and flow of tritium, by which we figure out the locations of tritium inventory and their vulnerability. We construct event tree models that lead to various levels of tritium release from abnormal initiating events. Branch parameters on the event tree are assessed from the fault tree analysis. Based on the event tree models we construct influence diagram models which are more useful for the parameter updating and analysis. We briefly discuss the parameter updating scheme, and finally develop the methodology to obtain the predictive distribution of consequences resulting from the operating a fusion power plant. We also discuss the way to utilize the results of testing on sub-systems to reduce the uncertain ties on over all system.

• 연구논문집
• /
• s.30
• /
• pp.43-56
• /
• 2000

N-IR spectroscopy technology is very useful. And, the technology has wide application range. In the range, we know that single beam type silica analyzer has some handicap. So we were studied Splitted beam type silica analyzer. This dissertation have been discuss about system structure, system fundamentals and performance test. At the test, we were study in the spectral interference of NH3. We know that existing system had some problem. It is structural frailties of single beam type. Therefore we were study for Splitted beam type structure. And we obtain a good result. We have $\pm$5% accuracy and 0.5 ppb level measuring range. But, we have a question. It is ppt level measuring technology by the laser beam spectroscopy.