• Journal of Embryo Transfer
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• v.4 no.1
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• pp.21-27
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• 1989

Hydrogel chambers made from polymerized 2-hydroxyethyl methacrylate were used for in chamber fertilization. To determine whether sperm motility was preserved in the Hydrogel chamber, chambers which have rabbit sperm or frozen-thawed bovine sperm were transplanted inside of mouse peritoneal cavity and sperm were observed after recovering the chambers in the due time. As a result, it was determined that preservation of sperm motility was good. To determine whether in chamber fertilization was possible, chambers which have rabbit oocytes and sperm were transplanted inside of mouse peritoneal cavity and eggs were observed after recovering the chambers at 84 hr of preservation. As a result, the fact that fertilization and culture was occurred inside of the chamber was determined.

• Journal of Physiology & Pathology in Korean Medicine
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• v.18 no.1
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• pp.53-57
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• 2004

In order to evaluate the neuroprotective effects of Kamisinsunbulo-dan(KSM), the cytotoxicity of amyloid β and the recovering effect of KSM were checked at first. Then the viability of C6 cells was tested in comparison with each concentration of KSM. The cytotoxicity of amyloid β(31-35) showed from 5 μM higher to 100 μM. And the recovering effect by KSM showed significantly at 100㎍/㎖. concentration. And the cell viability was shown significantly over 200 ㎍/㎖ of KSM. This is thought that the viability has some relation to length of culturing duration, 6 to 12 hrs. Lastly in the western blotting of APP, the amount of low molecule's APP was decreased. So the APP form ratio(APPr) changed to increase, and it meant that KSM can be used to lower the toxic APP, and can be a candidate for Alzheimer's disease.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2002.05a
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• pp.594-597
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• 2002

In this paper we study the effects of transmission noise on fixed-length coded wavelet coefficients. We use a posteriori detectors which include inter-bitplane information and determine which transmitted codeword was most likely corrupted into a received erroneous codeword We present a simple method of recovering from these errors once detected and demonstrate our restoration methodology on scalar-quantized wavelet coefficients that have been transmitted across a binary symmetric channel.

• Journal of the Korea Institute of Military Science and Technology
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• v.15 no.2
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• pp.121-129
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• 2012

In this study, in terms of the exercise vehicles of the weapon systems having negative buoyancy, the analysis on the operation concepts was performed and the new methods of floating to surface were proposed. In case of having negative buoyancy, the additional methods for recovering the exercise vehicle have to be considered. As parts of recovering the exercise vehicle, for floating to surface the new methods of weight discharge, weight separation and sea water discharge were proposed. The conceptual design about sea water discharge method was performed. It was confirmed that those methods could be applied to the design of the exercise vehicle having negative buoyancy.

• Proceedings of the KOSOMBE Conference
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• v.1996 no.11
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• pp.99-102
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• 1996

The ultimate object of FES is on the recovering function of body and shape demaged from desease or injury to original state. On this study, object is recovering of gait function of the disabled who, especially, have gait disturbance. Paralyzed muscle from the central nerve disable, if peripheral nerves which be in the lower part of the harmed are activated, muscle contraction is possible. The traumatic trouble, peripheral nerves aren't connected to a central nerve but origin of peripheral nerve cells which are in the lower part of the harmed are alive, react on stimulation. We design 4-channel stimulator, being based on standard stimuli pattern. stimulator is manufactured with compact size and light weight to portable.

• Journal of information and communication convergence engineering
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• v.20 no.4
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• pp.280-287
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• 2022

Recently, the number of mobile ransomware types has increased. Moreover, the number of cases of damage caused by mobile ransomware is increasing. Representative damage cases include encrypting files on the victim's smart device or making them unusable, causing financial losses to the victim. This study classifies ransomware apps by analyzing several representative ransomware apps to identify trends in the malicious behavior of ransomware. We present a technique for recovering from the damage, from a digital forensic perspective, using reverse engineering ransomware apps to analyze vulnerabilities in malicious functions applied with various cryptographic technologies. Our study found that ransomware applications are largely divided into three types: locker, crypto, and hybrid. In addition, we presented a method for recovering the damage caused by each type of ransomware app using an actual case. This study is expected to help minimize the damage caused by ransomware apps and respond to new ransomware apps.

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 2000.11a
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• pp.13-17
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• 2000

• Proceedings of the Korea Society for Energy Engineering kosee Conference
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• 2001.11a
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• pp.303-310
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• 2001

• 제어로봇시스템학회:학술대회논문집
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• 2002.10a
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• pp.118.4-118
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• 2002

$\textbullet$ Magnetic floor hinge $\textbullet$ Recovering torque $\textbullet$ Eddy Currents $\textbullet$ Magnetic damper $\textbullet$ Optimal design $\textbullet$ Cost optimization

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 2000.10a
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• pp.85-89
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• 2000