• Journal of the Korean Society for Precision Engineering
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• v.21 no.9
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• pp.69-76
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• 2004

Most tasks of the large vertical or ceiling structures have been carried out by human power. Those tasks require us much operation costs and times, safety devices, etc. So the need of automation for those tasks have been rising. That automation needs a wall-climbing mobile vehicle. Most former researches are things about attachment devices and moving mechanisms. A wall-climbing mobile vehicle must be designed by a method different from the case of the vehicle of the horizontal environment. That is because gravity acts as a negative role on the stability of a wall-climbing vehicle. In this thesis, the particular shape characteristics of a wall-climbing mobile vehicle are derived by the wall-environment modeling. In addition, some design constraints of the permanent magnetic wheel as an attachment device was studied. According to those requirements and constraints, one specific wall-climbing mobile vehicle was designed and some experiments were made on the attachment ability of that vehicle.

• Imaging Science in Dentistry
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• v.31 no.4
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• pp.221-225
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• 2001

Purpose: To observe the relationship of bilaminar zone of temporomandibular joint retrodiscal tissues to the disc condition. Materials and Methods : The upper and lower stratum of bilaminar zone were identified on magnetic resonance open mouth images of 148 joints from 74 patients with disc displacements. Results: Both strata were identifiable in 105 joints which had disc displacement with reduction. Lower stratum was not identifiable in 35 joints which had disc displacement without reduction but 12 of 35 had hyalinized posterior attachment where the disc was. The 8 joints which had partial disc displacement without reduction showed identifiable lower stratum at the reducing site which was medial. Conclusion: Disruption or no identification of lower stratum which corresponds to the condylar portion of posterior attachment may be the sign of disc displacement without reduction.

• The Journal of Korean Academy of Prosthodontics
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• v.55 no.1
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• pp.53-60
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• 2017

When attempting to restore the oral function of a partially edentulous patient, there are a number of prosthetic treatment options available, depending on the structure of remaining teeth. For example, when only one set of maxillary and mandibular teeth are diagonally in place across from each other, it is difficult to gain stable occlusion. In this case, implants can be put in place at the corresponding edentulous area to achieve balance. By doing so, a stable occlusion can be achieved. For this case report, a patient with crossed occlusion after extraction was treated with maxillary RDP (removable dental prosthesis) and mandibular implant-supported RDP (removable dental prosthesis). Moreover, an implant fixture was placed under the posterior molar of the distal extension base diagonally across from the remaining maxillary teeth. Then, magnetic attachment was implemented. According to the patient who received the treatment, the result was functionally and aesthetically satisfactory.

• Journal of Korean Neurosurgical Society
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• v.47 no.6
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• pp.464-466
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• 2010

A 59-year-old female presented with headache and dizziness for one year. Magnetic resonance imaging revealed a $52{\times}28$ mm, wellcircumscribed, homogenously enhancing mass lesion without dural attachment located in the left lateral cerebellomedullary cistern. The tumor was excised, and a histological diagnosis was a mixed pattern meningioma of meningothelial and fibroblastic type. A meningioma in the posterior fossa without dural attachment is quite rare. We report a rare case of lateral cerebellomedullary cistern meningioma without dural attachment with literature review.

• 대한치과보철학회:학술대회논문집
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• 1998.05a
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• pp.61-61
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• 1998

• 대한치과보철학회:학술대회논문집
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• 1998.11a
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• pp.55-55
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• 1998

• 대한치과보철학회:학술대회논문집
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• 2006.04a
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• pp.72-72
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• 2006

• 대한치과보철학회:학술대회논문집
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• 2000.04a
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• pp.57-57
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• 2000

• 대한치과보철학회:학술대회논문집
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• 2002.04a
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• pp.52-52
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• 2002

• 대한치과보철학회:학술대회논문집
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• 2002.04a
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• pp.56-56
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• 2002