• Journal of the Korean Association of Geographic Information Studies
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• v.12 no.3
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• pp.66-75
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• 2009

The purpose of this paper is design and implement the invisible depth analysis tools. The developed algorithm was basically used reference plan method and to remove first step errors we mix-used point-to-point method. and we consider error due to curvature and refraction for large scale analysis. The final algorithm was developed as ArcToolBox tools, which can be considered convenient and public use as well; as result it reduced experimental errors as compared with conventional method and makes possible high resolution analysis for large scale site.

• Journal of Auto-vehicle Safety Association
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• v.13 no.3
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• pp.60-68
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• 2021

Invisible passenger airbag door system of hard panel types must be designed with a weakened area such that the side airbag will deploy through the instrument panel as like intended manner, with no flying debris at any required operating temperature. At the same time, there must be no cracking or sharp edges in the head impact test. If the advanced airbag with the big difference between high and low deployment pressure ranges are applied to hard panel types of invisible passenger airbag (IPAB) door system, it becomes more difficult to optimize the tearseam strength for satisfying deployment and head impact performance simultaneously. It was introduced the 'Operating Window' idea from quality engineering to design the hard panel types of IPAB door system applied to the advanced airbag for optimal deployment and head impact performance. Zigzab airbag folding and 'n' type PAB mounting bracket were selected.

• 대한치과교정학회:학술대회논문집
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• 2002.11a
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• pp.89.1-89.1
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• 2002

• Proceedings of the Korean Society Of Semiconductor Equipment Technology
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• 2004.10a
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• pp.85-108
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• 2004

• 한국정보디스플레이학회:학술대회논문집
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• 2008.10a
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• pp.776-779
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• 2008

• 대한치과교정학회:학술대회논문집
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• 2000.11a
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• pp.55.1-55.1
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• 2000

• 대한치과교정학회:학술대회논문집
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• 2003.10a
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• pp.28.1-28.1
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• 2003

• Korean Architects
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• s.549
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• pp.28-31
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• 2015

• Journal of Chest Surgery
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• v.36 no.12
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• pp.995-998
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• 2003

During coronary artery bypass surgery, there are several discrete maneuvers that facilitates localization of the invisible left anterior descending coronary artery. In some cases with intramyocardial left anterior descending artery, long-term patency of a bypassed graft may depend on anastomosing the internal mammary artery graft to the more proximal and superficial site of the intramyocardial left anterior descending artery. We describe an easy technique to locate the proximal superficial left anterior descending artery with a distal coronary arteriotomy and retrograde insertion of a coronary probe.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.3
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• pp.1325-1329
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• 2012

This study suggests an indoor screen shooting system that can be connected with diverse graphic contents, through developing a gun only for indoor shooting and developing high-speed laser recognition algorithm. The dedicated gun has strong durability and was applied pneumatic solenoid valve control and invisible laser. The aim is to commercialize the indoor screen shooting system by developing a method of interacting with graphic engine through recognizing invisible laser at high speed.