• Journal of the Korea Safety Management & Science
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• v.1 no.1
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• pp.207-216
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• 1999

Too many big accidents have been occurring in Korea during '90. Those were accidents of Sung-Soo Bridge in 1994 and Sam-Poong Department Store in 1995. It was confirmed that the causes of the accident were unreliable construction or building. Therefore, in this study are to use technique of virtual reality(VR) simulation in order to prevent construction accidents. To set up the VR in safety construction, Date Base of variables, VR model and expert system are needed. This system is to build expert system, to visualize of the VR system and navigation, and to find out design errors of construction. Therefore, the purpose of this was to analyze accident type of construction, and apply VR system for simulation technique.

• Speech Sciences
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• v.8 no.4
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• pp.243-257
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• 2001

In English textbooks, there are three kinds of English intonation representations: Trager & Smith's, Weak-strong, Audio-lingual way. Each representation has its merits and demerits. Therefore, just one of them is insufficient to represent English intonation properly. Trager & Smith's representation is relevant to show holistic intonation itself. In contrast to this merit, it is not appropriate to represent downstep, declination, etc. With Weak-strong, it is good to show weak and strong point in the sentence. It is not, however, consistent with intonation. Instead of these representations, some textbooks accept Audio-lingual method. Audio-lingual method gives students more chances to hear native speakers' intonations. But it doesn't give ways to understand English intonation itself. In English textbooks, they don't have any hierarchies dependent upon students' proficiency. In spite of various intonations, they just accept a few limited intonation models. Thus, it is necessary to review all kinds of intonation representations and to develop more advanced and relevant English intonation representation.

• Proceedings of the KIEE Conference
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• 2000.07c
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• pp.2165-2167
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• 2000

Until the first stage of the 1990's years. Korea are not concern so much the facilities of traffic tunnel, because of them are the short length and also the quantity of them are not over the several tens in korea, but in latest many tunnels has been constructed and are designed in expressway and local national loads, the government office concerned forecast the numbers of tunnel are increased about 300 until the 2003 years, and then we need more interesting about the facilities of tunnel in the tunnel, the first above of all important facilities is lighting installation which are required much electric energy and continuing maintenance.

• Proceedings of the Safety Management and Science Conference
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• 1999.11a
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• pp.291-301
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• 1999

Too many big accidents have been occurring in Korea during '90. Those were accidents of Sung-Soo Bridge in 1994 and Sam-Poong Department Store in 1995. It was confirmed that the causes of the accident were unreliable construction or building. Therefore, in this study are to use technique of virtual reality(VR) simulation in order to prevent construction accidents. To set up the VR in safety construction, Date Base of variables, VR model and expert system are needed. This system is to build expert system, to visualize of the VR system and navigation, and to find out design errors of construction. Therefore, the purpose of this was to analyze accident type of construction, and apply VR system for simulation technique.

• Journal of Industrial Technology
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• v.31 no.A
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• pp.123-128
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• 2011

In this study, procedures, a power performance testing system of Wind Turbine System Research Center of Kangwon National University is introduced. Test prodedures and results are presented on a stand-alone vertical-axis 200W wind turbine manufactured by Geum-Poong Energy Inc.. Power performance test is performed according to IEC standard. The test results are compared with the power performance standard. Also, the effects of normalization and disturbed sectors are considered.

• Proceedings of the KIEE Conference
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• 2005.07b
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• pp.1041-1043
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• 2005

It is expected to reduce stresses to components of high voltage circuit breaker and transferred switching surge from power system by applying controlled switching technique to high voltage system. This technique has already been applied to switch shunt reactor or capacitor bank in advanced countries. In this paper, operating software is installed in developed controlled switching device and HMI(Human-machine Interface) is under developing, In the future, this technique is expected to contribute to S.A(Substation Automation).

• Nuclear Engineering and Technology
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• v.14 no.1
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• pp.1-9
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• 1982

Some observations from the examination of actual manhour curves for the power plant design engineering obtained from Sargent & Lundy Engineers and of a few of the model curves proposed by Bechtel, are analyzed in this paper. A model curve representing typical design engineering manhour has been determined as a probability density function for the Gamma Distribution. By means of this model curve, we strategically forecast the future engineering manpower requirements to meet the Government's long range nuclear power plan. As a sensitivity analysis, the directions for the localization of nuclear power plant design engineering, are studied in terms of the performance factor for the experienced versus inexperienced engineers.

• 제어로봇시스템학회:학술대회논문집
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• 2001.10a
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• pp.59.4-59
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• 2001

In this paper, wireless interface of the motion between human and robot is implemented. The idea is that if a human who is equiped with device including accelerometer and rate-gyro sensor move his/her arm, then the robot follows human motion. The robot is designed as wheeled type mobile robot with two link arms. The robot´s basic movements such as forward, backward, left, right movement can be controlled from foot sensor which human steps on. Arm movements can be controlled by arm motion of human motion. In order to detect human motion, sensor data analysis from gyro and accelerometer has to be done. Data from sensors are transferred through wireless communication to activate the robot.

• Bulletin of the Korean Chemical Society
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• v.7 no.6
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• pp.421-425
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• 1986

New di- and triorganotin(IV) complexes of meta- and para-phenylenebisdithiocarbamate(m- and p-pbdtc) have been synthesized and characterized by means of chemical analysis, mass spectrometry, and IR spectroscopy. The reaction of the m-pbdtc ligand with diorganotin(IV) halides resulted in 1:1 products, $R_2Sn{\cdot}m$-pbdtc (R = Me, Cy, n-Bu) of dimeric nature whereas the p-pbdtc ligand led to an oligomeric or polymeric structure. The pbdtc ligands were also reacted with triorganotin(IV) halides to form monomeric complexes, $(R_3Sn)_2{\cdot}pbdtc.$ The tin coordination chemistry of these complexes were also discussed in terms of Sn-C and Sn-S bonding modes.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2008.11a
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• pp.435-436
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• 2008

The manufacturing technology used for next generation high-speed air-breathing engines, such as ramjet engine, scramjet engine and so on, was classified and reviewed to check up if pre-occupied manufacturing technology in Hyundai Rotem and other Korean companies in the field of liquid rocket engines, gas turbines and afterburners can be applied for fabricating next generation air-breathing engines.