• Proceedings of the IEEK Conference
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• 2006.06a
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• pp.747-748
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• 2006

In this paper, we describe photonic sensor interface and driver program based on SOPC(System on a programmable chip) platform. This platform uses device that has ARM922T processor and APEX FPGA area on a chip. As for driver program development, three different methods are tried such as simple firmware, real-time OS based program and embedded Linux based program, and results are compared for SoC implementation.

• Proceedings of the Korean Magnestics Society Conference
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• 2008.12a
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• pp.244.1-244.1
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• 2008

• Proceedings of the Korean Magnestics Society Conference
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• 2008.12a
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• pp.241.2-241.2
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• 2008

• Proceedings of the Korean Magnestics Society Conference
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• 2008.12a
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• pp.242.1-242.1
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• 2008

• Journal of the Korean Society for Precision Engineering
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• v.11 no.1
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• pp.157-165
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• 1994

A general-purpose program for automatic two-dimensional finite-element modelling with quadrilateral elements was developed in this research. The conventional looping method employed in the program was introduced with emphasis on a new splitting criterion and a splitting scheme developed for improving the method. Some application examples were given, which show versatility and applicability of the developed program.

• Journal of Engineering Education Research
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• v.18 no.5
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• pp.32-41
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• 2015

This paper deals with analyzing accreditation findings and the causes for the deficiencies in the review by the EAC(Engineering Accreditation Committee) of ABEEK in 2014. For this purpose Final Statements of the 266 engineering education programs reviewed by the EAC of ABEEK in 2014 were analyzed on the basis of the each criterion. However, Accreditation Criterion 8(Program Criterion) was excluded in the analysis of the causes for the deficiencies since the program-specific requirements within areas of specialization might vary with the program criteria. As results of accreditation review by the EAC of ABEEK, Deficiency findings were 81 cases which made up 3.81% of total findings, Weakness findings were 1,679 which made up 78.91% of total findings, Concern findings were 124 cases which made up 5.83% of total findings, and Satisfaction findings were 244 cases which made up 11.47% of total findings. Deficiency and Weakness findings against which the relevant program must take actions for the improvement were 82.71% in all. The findings on program accreditation are made on the basis of the Accreditation Actions Guide. Accordingly, in view of formal logic in the accreditation review, the accreditation findings should comply with the Accreditation Actions Guide consistently. In this respect, the Deficiency findings in the accreditation review can be justified. So it is useful for a program or an institution which prepares for the accreditation review to check over the causes for the Deficiency against the Accreditation Actions Guide. On the other hand changeover in the accreditation policy of the ABEEK may be necessary. If the quality of the engineering education is improved continuously through the accreditation review, accreditation fulfills its purpose. To gain this end it is important to place higher value on the 'bigger picture' than on the minor details. In other words, "holistic" evaluation of evidence should form the basis of accreditation review.

• Journal of Aerospace System Engineering
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• v.8 no.2
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• pp.27-32
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• 2014

From the flight safety and the performance point of views, a new engine installation impacts an helicopter development or upgrade program significantly. More than a close relationship between an aircraft manufacturer and an engine manufacturer is necessary for the best integration work from the program initiation phase. In this paper, technical cooperation between aircraft and engine companies, and technical supports by the engine manufacturer for the T700/701K engine during the Surion development program are summarized. The applications of official technical program documents, US Mil-spec, France airworthiness regulations as the standard of the engine installation work, and engineering activities at each phase such as contract, design and manufacturing, flight clearance, ground and flight tests are described. This paper would be a cornerstone for the future domestic helicopter development program.

• KIEE International Transactions on Power Engineering
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• v.4A no.4
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• pp.178-191
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• 2004

This paper presents a new approach to HVDC system control for damping subsynchronous oscillation (SSO) involving HVDC converters and turbine generator shaft systems. This requires a novel eigenvalue analysis (NEA) program, derivation of HVDC system modeling considering steady-state conditions and dynamic conditions in the combined AC/DC system, and an appropriate control scheme. The method suggested makes possible the design of a subsynchronous oscillation damping controller (SODC) to provide positive damping torque for the range of torsional modes in combined AC/DC systems. There are three steps involved in the design of a SODC； first the worst torsional mode is determined using the NEA program, next the SODC parameters are designed for the range of that torsional mode, and then finally an off-line simultaneous time domain program such as PSCAD/EMTDC is used to verify the parameters of the SODC. The suggested SODC design method is applied to two AC/DC systems, and its practicality is verified using the PSCAD/EMTDC simulation program.

• IE interfaces
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• v.16 no.1
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• pp.94-102
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• 2003

This study proposed a method to apply risk management standards to a product safety management program and reviewed cases where a risk management cycle is applied to the product safety management program. Comparing the four product safety management programs suggested by several authors yielded common features of the risk management cycle: (1) organization for product safety, (2) risk identification, (3) risk evaluation, (4) risk treatment, (5) monitoring/communication, and (6) documentation. A Japan company(Ricoh)'s case showed that the risk management cycle to treat product liability risks can be used as a successful product safety management program.

• Proceedings of the KIPE Conference
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• 2007.07a
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• pp.473-475
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• 2007

This paper shows a monitoring program, and this Exploiting monitoring program is a program for real-time monitoring the current and voltage which is produced by wind generators. And this program helps to check efficiency and situation of the wind generator; therefore, it uses LabVIEW for this real-time monitoring program. It is expensive that the specific network is needed in the common LD (long distance) data transmission. So in this paper, it shows the transmission method which use ezTCP/LAN (Serial-port${\leftarrow}{\rightarrow}$LAN-port converter) and combine with the TCP/IP based on LabVIEW. And in this method the specific network is not needed for using the Internet network to transmit the data, which can reduce the application cost of the system.