• Journal of Advanced Marine Engineering and Technology
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• v.38 no.4
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• pp.383-388
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• 2014

This study predicts damaging risk factors in apartment fire situation by using CFAST. The software was developed by Building and Fire Research Lab, that is government affiliated organization of the National Institute of Standards Technology. This analysis scenarios werec well verified by experimental results. Situation of the living room and the second room as well as the bedroom tends to be qualitatively the same with the experimental data. In case of apartment fire, it is predicted that they have been got into trouble with dizziness, badly vomiting and paralysis symptoms due to short oxygen and excessive carbon dioxide when persons were left out in the living room or second room.

• The Journal of Internal Korean Medicine
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• v.40 no.5
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• pp.912-919
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• 2019

Objective: The aim of this case report was to describe the effects of traditional Korean medicine on a patient suffering from central dizziness caused by a lateral medullary infarction Methods: The patient was given a series of Korean medicine therapy treatments, including Jeseubsungi-tang, acupuncture, and cupping, for 37 days. We measured the progress of this case using a numerical rating scale (NRS). Results: After the treatment, the NRS score for dizziness decreased, and the headache almost completely subsided. Conclusions: This clinical case study indicated that Jeseubsungi-tang could be effective in relieving central dizziness and headache caused by lateral medullary infarction.

• Korean Journal of Clinical Pharmacy
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• v.27 no.4
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• pp.221-227
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• 2017

Background: As personalized healthcare industry has attracted much attention, big data analysis of healthcare data is essential. Lots of healthcare data such as product labeling, biomedical literature and social media data are unstructured, extracting meaningful information from the unstructured text data are becoming important. In particular, text mining for adverse drug reactions (ADRs) reports is able to provide signal information to predict and detect adverse drug reactions. There has been no study on text analysis of expert opinion on Korea Adverse Event Reporting System (KAERS) databases in Korea. Methods: Expert opinion text of KAERS database provided by Korea Institute of Drug Safety & Risk Management (KIDS-KD) are analyzed. To understand the whole text, word frequency analysis are performed, and to look for important keywords from the text TF-IDF weight analysis are performed. Also, related keywords with the important keywords are presented by calculating correlation coefficient. Results: Among total 90,522 reports, 120 insulin ADR report and 858 tramadol ADR report were analyzed. The ADRs such as dizziness, headache, vomiting, dyspepsia, and shock were ranked in order in the insulin data, while the ADR symptoms such as vomiting, 어지러움, dizziness, dyspepsia and constipation were ranked in order in the tramadol data as the most frequently used keywords. Conclusion: Using text mining of the expert opinion in KIDS-KD, frequently mentioned ADRs and medications are easily recovered. Text mining in ADRs research is able to play an important role in detecting signal information and prediction of ADRs.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.22 no.5
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• pp.709-714
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• 2018

Visual Reality technology is becoming more and more interesting as it attracts people's interest. VR technology is used in various markets such as games, animation, and education. However, there were many people experiencing motion sickness such as dizziness and headache due to the delay time between hardware such as a device for sending a video after experiencing a VR image and an HMD for reproducing an image. The system proposed in this paper focuses on the environment rather than the movement of the attraction and detects the dividing line existing on the path by the proximity sensor and accurately calculates the position on the path according to the user 's motion. Since the position of the user is synchronized with the VR image, the position error of the user is improved to 0.2%.

• Proceedings of the KAIS Fall Conference
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• 2009.12a
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• pp.769-773
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• 2009

본 연구는 MRI 검사를 받은 환자를 대상으로 영상매체(Visual equipment & Audio system)를 이용하여 영상물을 제공함으로서 불안과 불편감에 대한 효과에 대해 규명함으로써 MRI 검사로 인한 심리적, 정신적 불안과 불편 감을 감소시킬 수 있는 대체요법을 제공하기 위하여 본 연구를 시도하였다. 연구대상은 대전광역시에 위치한 K 대학병원에서 MRI 검사를 받은 환자 중 영상물을 제공받은 실험군 30명과 영상물을 제공받지 않은 대조군 30명을 대상하였다. 연구의 도구는 Spielberger의 기질불안 도구와 Cline, Herman, Shaw와 Morton이 고안한 불안점수 도구인 시각적 상사척도(VAS)를 이용하였고, 영상물을 제공하여 두 군 간의 활력징후를 측정하였고 불편감은 대상자의 주관적 불편감(어지러움, 공포감. 긴장감)점수와 객관적 불편감 행동 점수를 사용하였다. 자료 분석 방법은 SPSS12K for Windows program을 이용하였으며, 두 군의 일반적 특성 및 수술에 관련된 특성의 동질성 검증은 $\chi^2$ 검정, 가설검증은 t-test로 분석하였다. 연구결과를 요약해 보면 영상매체(Visual equipment & Audio system)를 이용하여 영상물(영화, 애니메이션)을 제공하면서 MRI 검사를 진행했을 경우 검사 대상자의 혈압 및 객관적 불편감에서는 유의한 영향을 미치지 못했으나 불안과 활력징후의 하나인 맥박의 감소, 또한 주관적 불편감이 감소됨을 알 수 있었다. 따라서 환자의 심리적인 긴장감을 완화시키며 안정감을 느끼게 하는데 효과적인 대체요법이 될 수 있을 것으로 사료 된다.

• Korean Journal of Psychosomatic Medicine
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• v.7 no.2
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• pp.247-251
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• 1999

Background : Iron deficiency anemia(IDA) is a very common condition, and its underlying causes are diverse. Gastrointestinal blood loss, pregnancy, menorrhagia are known as common causes of IDA. However, especially in the IDA case of unknown origin, we must consider the culture specific cause of IDA as a possible cause of IDA. As I found an unusual cause of IDA related to a cultural behavior, I would like to report two cases of IDA occurred by negative therapy in Korea. It is possible to explain these cases by explanatory model. Case 1 : With a chief complaint of dyspnea, a 27-year-old woman visited our clinic. She had multiple treatment histories of negative therapy for her psoriasis. The blood loss during this procedure is the cause of present IDA. Case 2 : A 70-year-old man visited our clinic complaining of anorexia and dizziness. The history of treatment showed that he had an IDA 9 month ago. The IDA developed again because of repeated negative therapy after previous treatment of IDA. He has used the negative therapy intermittently to treat tinea pedis for 5 years. Conclusion : We must consider the negative therapy as a possible cause of IDA in Korea.

• The Journal of the Korea Contents Association
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• v.18 no.5
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• pp.420-431
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• 2018

This study approaches the subject of satisfaction and persistent use intention based on presence based on virtual reality (VR). VR presence, user characteristic, and VR sickness, content satisfaction and system satisfaction, and continued use intention through this of 569 men and women commissioned by the survey agency were investigated. In the content of the study, the constituent factors of VR presence, an independent variable, were set as realism, immersion, and interaction. The user characteristics were set as the individual 's propensity to innovate, the degree of immersion, and the experience of using VR. VR Presence, User Characteristics, VR Sickness of Intention of Continuous Usage were set as research problems and models. Eight hypotheses were adopted in the analysis of the research problem applying the structural equation modeling (SEM) model. In conclusion, this study suggests that content satisfaction, which has the greatest influence on VR content satisfaction and persistent intention, is suggested.

• Investigative Magnetic Resonance Imaging
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• v.9 no.1
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• pp.57-61
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• 2005

Osteosarcomas are highly malignant bone tumors which commonly affect metaphyseal portions of long bones and those of the skull are distinctly rare as primary neoplasm. We report a case of recurrent osteosarcoma originated from the skull base which destructed sphenoid bone in two months. The CT and MR images of 28 years old man with headache, dizziness, and loss of touch sense in right buccal area showed 3-cm sized homogenously well-enhancing mass with internal small cystic portions. Craniotomy and mass excision was done and chemotherapy was combined for 1 month. After about 2 month, follow up MR images showed larger recurrent mass in original site and confirmed as the same osteosarcoma after 2nd operation.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.3
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• pp.665-671
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• 2013

Even though a dual lens stereoscopic camera allows for convenient stereoscopic photography, the necessity for the research comes up, since the dual lens stereoscopic camera can cause visual discomfort during zoom-in due to the fixed convergence point. We propose a method based on which a convergence point can be adjusted to prevent visual discomfort during zoom-in for a dual lens stereoscopic camera. First, the relational model is classified into nine kinds and defined, depending on locations of focus, object, and convergence point. And then, the method to minimize visual discomfort is suggested by adjusting convergence point on the given model. We also implement the suggested methods with anaglyph computer graphic and demonstrate the superiority of them.

• The Journal of Pediatrics of Korean Medicine
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• v.20 no.2
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• pp.129-137
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• 2006

목적 : 본 연구를 통하여 아토피 피부염 환아의 한약치료 후 임상 효능, 안전성을 평가하고, 나아가 효능과 안전성을 종합적으로 평가함으로써 아토피 피부염에 대한 한약치료의 유용성을 평가하고자 한다. 방법 : 경희대학교 한의과대학 부속한방병원 한방소아과에 내원한 아토피 피부염 환아 39명의 한약치료 전후의 의무기록을 검토하였다. 아토피피부염 치료에 대한 한약의 효능을 평가하기 위하여 치료 후 아토피 피부염의 개선정도에 대한 부모의 평가를 VAS를 사용하여 분석하였다. 아토피 피부염에 패한 한약치료 후 안정성의 평가를 위하여 치료 전후 혈중 AST, ALT, BUN, creatinine 변화를 검토하여 한약치료의 간신독성 여부에 대해 조사하였고, 보호자에 대한 설문조사를 통하여 한약치료 후 발생한 부작용 및 불편한 증상의 종류 및 정도를 평가하였다. 나아가 한약의 효능 및 안정성을 종합적으로 평가하여 아토피 피부염에 대한 한약 치료의 유용성을 분석하였다. 결과 및 결론 : 환아 39명 중 27명 (69%)의 부모가 한약치료가 아토피 피부염의 개선에 효과가 있다고 보고하였다. 안정성의 평가에 있어서, 39명의 환자에게서 한약 치료 후 간장과 신장에 미치는 독성이 발견되지 않았다. 2명의 환아가 일시적이고 경미한 복부 불쾌감을 호소하였으나, 한약투여와의 관련성은 관찰되지 않았다. 1명의 환아에서 경미한 복통이 발견되었으나, 의학적 치료 없이 증상은 소실되었으며, 치료 과정의 중단 없이 계획되었던 모든 치료 과정을 종료하였다. 치료 후 상기 환아는 아토피 피부염의 증상 개선 뿐 아니라 변비증상의 완화, 만성적 어지러움의 개선 등 제반 신체 조건의 호전을 보고 하였다. 임상적 효능과 안전성을 종합적으로 고려할 때, 환아 39명 중 27명 (69%)의 사례에서 한약치료가 아토피 피부염의 유용한 치료수단으로 평가되었다. 이를 근거로 한약치료가 아토피 피부염에 대하여 안전성을 가진 유용한 치료방법이라 사료되며, 향후 임상적 효능과 안전성을 객관적으로 평가할 수 있는 대규모의 임상연구가 필요하리라 사료된다.