• Proceedings of the Korean Information Science Society Conference
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• 2007.06a
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• pp.59-60
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• 2007

휴대폰과 메신저 등 통신 환경에서 사용되는 표준어가 아닌 SMS의 변형된 어휘 및 띄어쓰기 오류를 자동으로 교정하여 형태소 분석 및 품사 태깅의 성능 저하 문제를 방지하는 문자열 오류의 교정 방법을 제안하였다. 통신 어휘들의 문자열 사전 구축 방법으로 통신어휘집을 기반으로 수동으로 구축하는 방법과 수작업으로 구축된 말뭉치로부터 자동으로 변형된 문자열을 추출하는 방법, 그리고 문맥을 고려하는 방법을 비교-분석하고 실험 및 성능 평가 결과를 제시하였다.

• Journal of the Korean Society for Precision Engineering
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• v.12 no.7
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• pp.53-65
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• 1995

입자화상 처리기법은 유체역학 분야의 정량적 유동가시화에 있어서 중요한 역할을 하고 있다. 회전 유동의 측면 사진을 찍을 때, 측정부의 볼록면 때문에 그 영상에서 광학적 변형이 일어나게 된다. 이러한 변형은 측정부의 형상은 물론 회전유동의 방향에 의해서도 큰 영향을 받는다. 정확한 유동장을 얻기 위해서 이러한 변형이 적절한 방법에 의하여 교정된다. 교정한 실험 데이터를 수치해석 결과와 비교해 보면 정량적으로 잘 맞는 것을 알 수 있다.

• Journal of the Korean Orthopaedic Association
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• v.54 no.1
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• pp.1-8
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• 2019

Globally, the elderly population is increasing rapidly, which means that the number of deformity correction operations for elderly spine deformity patient has increased. On the other hand, for aged patients with deformity correction operation, preoperative considerations to reduce the complications and predict a good clinical outcome are not completely understood. First, medical comorbidity needs to be evaluated preoperatively with the Cumulative Illness Rating Scale for Geriatrics or the Charlson Comorbidity Index scores. Medical comorbidities are associated with the postoperative complication rate. Managing these comorbidities preoperatively decreases the complications after a spine deformity correction operation. Second, bone densitometry need to be checked for osteoporosis. Many surgical techniques have been introduced to prevent the complications associated with posterior instrumentation for osteoporosis patients. The preoperative use of an osteogenesis inducing agent - teriparatide was also reported to reduce the complication rate. Third, total body sagittal alignment need to be considered. Many elderly spine deformity patients accompanied degenerative changes and deformities at their lower extremities. In addition, a compensation mechanism induces the deformed posture of the lower extremities. Recently, some authors introduced a parameter including total body sagittal alignment, which can predict the clinical outcome better than previous parameters limited to the spine or pelvis. As a result, total body sagittal alignment needs to be considered for elderly spine deformity patients after a deformity correction operation. In conclusion, for elderly spine deformity patients, medical comorbidities and osteoporosis need to be evaluated and managed preoperatively to reduce the complication rate. In addition, total body sagittal alignment needs to be considered, which is associated with better clinical outcomes than the previous parameters limited to the spine or pelvis.

• Journal of the Korea Computer Graphics Society
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• v.20 no.1
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• pp.1-11
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• 2014

Patients with cerebral palsy or arthritis have deformities in lower limb which cause unstable gait or posture and pains. Surgeons perform a deformity correction osteotomy with surgical plan. But sometimes they find the unexpected angular or rotational deformation after surgery. The problems are that there is no method to predict the result of a surgical plan and also there are so many factors to must consider in surgical planning step such as clinical measurements, rotation angle, wedge angle, morphology of lower limb, etc. This paper presents new methods for planning the deformity correction osteotomy efficiently. There are two approaches based on the 3D mesh model and the accurate assessment of the patient's lower limb. One is the manual pre-simulation of surgery using forward kinematics. And the other is the automatic surgical planning using inverse kinematics and nonlinear optimization. Using these methods, we can predict and verify the results of various surgical treatments and also we can find a more effective surgical plan easily compared to conventional methods.

• Journal of Plant Biotechnology
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• v.47 no.3
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• pp.185-193
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• 2020

The number of commercially approved gene-edited crops is gradually increasing, and in South Korea, it has led to intense investment in gene-edited crop development to increase international competitiveness. However, as with genetically modified crops, the safety of gene-edited crops regarding unexpected risks for humans and the environment is subject to an ongoing debate. In particular, unintentional "off-target effects" have become the center of controversy. In this review, we discuss typical plant characteristics (including somatic variation and ploidy), the extent of various off-target effects in genetically modified crops generated via horizontal transfer in nature, and the off-target effects in commercial genetically modified crops. We conclude that most off-target effects possibly occurring in gene-edited crops are not expected to be critically harmful to humans or the environment. Therefore, existing regulation for genetically modified crops should be enough for the risk assessment of gene-edited crops.

• 대한치과교정학회:학술대회논문집
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• 1999.11a
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• pp.63-63
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• 1999

• Journal of Welding and Joining
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• v.22 no.4
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• pp.1-3
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• 2004

용접변형은 용접잔류응력과 같이 고유변형도에 의해 발생되며, 고유변형도의 분포형상에 따라 그림 1과 같은 용접변형이 발생된다. 이러한 용접변형은 강구조물 제작시 다양한 용접부형상에 의해 복합적으로 발생되며, 이것은 강구조물을 설계치수를 변화시키거나 부재 간 단차를 발생시켜 절단 또는 교정과 같은 생산공정에 불필요한 작업을 유발시켜 생산성을 저하시킨다.(중략)

• Journal of Christian Education in Korea
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• v.65
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• pp.215-241
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• 2021

New models for prison ministry are crucial during the current era of mass incarceration in America-a time when the potential reach of prison ministries can grow as the population of incarcerated individuals grows. In this article, I lift up one prison ministry in New Jersey as an example of how Christian evangelicals who are engaged in traditional prison ministry can bravely open their minds and hearts to models of religious education that go beyond individual conversion toward communal transformation. In this article I present an example of a neo-evangelical group named Jericho Ministries, Inc., a prison ministry that understood this and consequently tried to develop a prison ministry that was not only a charitable endeavor, but also a just one.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.36 no.4
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• pp.355-360
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• 2012

Cold drawn(CD) bars feature superb surface roughness, dimensional precision, and straightness. They are used in the manufacture of automotive parts and home electrical appliances. Two cross-roll straighteners have been used to manufacture CD bars for these industries. This study investigated the variation of the gap size between the two cross-rolls. It was found that changes in the gap size have a large influence on the residual stress and plastic deformation. Finite element method(FEM) simulations were performed to study the influence of the gap size on the residual stress in CD bars, and experiments were performed to verify the FEM results. The residual stresses were measured with X-ray diffraction in both the axial and the hoop directions.

• Proceedings of the KWS Conference
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• 2004.05a
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• pp.229-231
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• 2004

다층 용접이 적용되는 후판 조립 부재에서는 각 조립단계별로 용접변형이 필연적으로 발생되고 있으며 용접변형의 교정을 위한 추가 작업도 각 조립간계 및 후 공정에서 반복적으로 수행되고 있다. (중략)