• 대한한방부인과학회지
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• 제25권1호
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• pp.70-78
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• 2012

Objectives: The purpose of this article is not until to investigate the changes and types of statistical methods and to point out the statistical errors after analyzing the method of articles that improve the quality of the statistical analysis of papers published in the Journal of Oriental Obstetrics and Gynecology. Methods: Papers published in the Journal of Oriental Obstetrics and Gynecology from 2009 to 2011 were reviewed for methodological and statistical validity using a modified version of Ahn's checklist. A statistician reviewed individual papers and evaluated the list items in the checklist for each paper. To avoid the potential assessment error by the statistician who lacks expertise in the field of Oriental Obstetrics and Gynecology. Results: A total of 190 papers including 64 original articles, 40 reviews article, 58 case report and 28 brief communication were reviewed. Statistics methods used in 121 papers were composed of t-test(58.7%), ANOVA test(19.8%) and ${\chi}^2$- test (14.0%) et al. Whereas only 14.9% of papers were free of statistical errors, the number of omission errors was 58 and the number of commission errors was 149 each. Conclusions: A variety of statistical errors were encountered in papers published in the Journal of Oriental Obstetrics and Gynecology. Accordingly, researchers should be more careful when it comes to describing and applying statistical methods.

• 비교문화연구
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• 제40권
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• pp.41-60
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• 2015

이 논문은 21세기 한국과 중국, 일본, 대만에서 제작, 유행한 TV 드라마 <꽃보다 남자>를 연구대상으로 하여 동북아시아의 문화융합을 살펴보고 이 지역 대중이 공유하는 문화적 취향을 귀납하였다. 일본 만화를 원작으로 한 4개국의 <꽃보다 남자>는 원작이 지니고 있는 기본적인 서사구성을 토대로 캐릭터의 설정과 서사공간의 혼합, 소비주의적 욕망의 재현에서 각국의 사회적이고 문화적인 특수성을 재현하였다. 이를 통해 수용자들은 동북아시아 각국의 사회문화적 환경이 자연스럽게 혼성적으로 결합된 서사를 접하게 되는 것이다. 한편 로맨스 플롯을 기본으로 전개되는 TV 드라마 <꽃보다 남자>는 원작인 만화에서 가능했던 구성적 특질이 매체변환 과정에서도 드러나고 있다. 특히 전통적인 성 관념에서 탈피한 남성 캐릭터의 설정과 독립적인 여성 캐릭터의 재현을 통해 미래의 역할 모델을 제시하는 순정만화의 상상력이 동북아시아 대중들에게 공유되고 있다. <꽃보다 남자>의 주 수용자 계층인 10-20대 초반 젊은 여성들의 이해에 기반한 감수성과 취향이 21세기 동북아시아에서 공유되고 유행한다는 점은 "소녀"의 부상이라는 점에서 주목을 요한다. 부르주아 가족 구조를 단위로 하는 현대 자본주의 체제에서 엄격한 보호와 구속의 대상이었던 소녀는 21세기 동북아시아 대중문화콘텐츠 산업에서 중심 소비자로서 자리를 확고히 했음을 보여주기 때문이다.

• 한방안이비인후피부과학회지
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• 제34권1호
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• pp.13-28
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• 2021

Objectives : Strabismus is a disease that can be observed and treated directly from the outside. Therefore, it is very important in Korean medicine ophthalmology in accessibility to treatment. This study is designed to investigate the trends of strabismus-related studies published in Journal of Korean medicine. Methods : 5 Internet databases were selected to search for the study subject. The following 9 keywords were used; Strabismus, Heterophoria, Binocular vision, Visual acuity, Diplopia, Paralytic, Cover test, Oculomotor nerve paralysis, Abducens nerve paralysis. Through this process, a total of 45 studies were found and analyzed into 5 categories ; publication year, publication journal, number of author, type of article, analyzation of case report. Results : There were 2 review articles, 1 original article and 42 case reports. 5 studies(11.1%) were published in 2004 year. Journal of Korean Oriental Medical Ophthalmology & Otolaryngology & Dermatology were the most common with 40%. The authors were often 2 and 3 (each 22.2%). In the case report study, the treatment period was most often 1-30 days (35.7%). Conclusions : 42 studies were on paralytic strabismus and 1 study was on paralytic and non-paralytic strabismus. These results represent that the studies are concentrated in case reports about paralytic strabismus, but this seems to be an area to be improved in future research.

• 한국한의학연구원논문집
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• 제18권3호
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• pp.49-61
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• 2012

This article set out to develop an old Chinese - modern Korean collated terminology by analyzing and paralleling Chinese-Korean translational terms relevant to Korean medicine at a minimum meaning unit from "Eonhaegugeupbang", "Eonhaetaesanjipyo" and "Eonhaetaesanjipyo". Those are composed of original Chinese texts and their subsequent corresponding Korean translations. It tries to make a list of translational standards of Korean medicine terms by classifying the cases of translational ambiguity in terms of disease, body position, thumbnail-pressing acupuncture method, and disease-curing method. The above-mentioned ancient books are medical classics written by Huh Jun, the representative medical physician, and published by the Joseon government. Thus, they are appropriate enough as historically legitimate medical documents, from which are drawn out words and terms to form an old Chinese - modern Korean collation dictionary. This collation glossary will contribute to the increased relevance of data ming, or information retrieval. in a database system and information search engine of massive Korean medical records, by means of providing a novel way to obtaining synchronized results between the original writings of old Chinese and the secondary translated ones of modern Korean. The glossary will promote the collective but consistent translation of numerous old archives of Korean medicine and in other related fields as well.

• Membrane and Water Treatment
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• 제3권3호
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• pp.169-179
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• 2012

One of the major limitations in the use of commercial aromatic polyamide thin film composite (TFC) reverse osmosis (RO) membranes is to maintain high performance over a long period of operation, due to the sensitivity of polyamide (PA) skin layer to oxidizing agents, such as chlorine, even at very low concentrations in feed water. This article reports surface modification of a commercial TFC RO membrane (BW30-Dow Filmtec) by covering it with a thin film of poly(vinyl alcohol) (PVA) crosslinked with glutaraldehyde (GA) to improve its resistance to chlorine. Crosslinking reaction was carried out at 25 and $40^{\circ}C$ by using PVA 1.0 wt.% solutions at different GA/PVA mass ratio, namely 0.0022, 0.0043 and 0.013. Water swelling measurements indicated a maximum crosslinking density for PVA films prepared at $40^{\circ}C$ and GA/PVA 0.0043. ATR-FTIR and TGA analysis confirmed the reaction between GA and PVA. SEM images of the original and modified membranes were used to evaluate the surface coating. Chlorine resistance of original and modified membranes was evaluated by exposing it to an oxidant solution (NaClO 300 mg/L, NaCl 2,000 mg/L, pH 9.5) and measuring water permeability and salt rejection during more than 100 h period. The surface modification effectively was demonstrated by increasing the chlorine resistance of PA commercial membrane from 1,000 ppm.h to more than 15.000 ppm.h.

• Clinics in Shoulder and Elbow
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• 제11권1호
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• pp.6-12
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• 2008

관절경 수술 및 MRI가 보편적으로 쓰이면서 SLAP (superior labrum from anterior to posterior) 병변은 최근 많이 진단되고 있으며 수술 역시 널리 시행되고 있다. 그러나 임상적으로 SLAP 병변을 진단 내리기는 힘들어 이를 진단하기 위한 다양한 이학적 검사법이 소개되고 있으나 그 민감도와 특이도에 이견이 많아 확진 검사로 쓰이기는 힘들다. 하지만 임상적으로 SLAP 병변이 의심되는 경우 이학적 검사가 SLAP 진단 과정에 도움이 되는 것은 사실이며, 다른 정밀검사를 하도록 도와줄 수 있고 수술 전 계획을 수립하는데도 도움을 준다. 따라서 자세한 병력과 함께 정확한 이학적 검사법을 알고 시행하는 것이 SLAP 병변의 진단과 치료에 중요하다고 할 수 있다. 이 종설에서는 현재 보고된 SLAP 병변의 이학적 검사법들을 나열하여 원문 기술(original descriptions)과 통계학적 분석에 기술하여 어떠한 검사법이 있으며 어떻게 검사를 시행 해야 되며 그 검사 결과를 어떻게 판정해야 되는지를 알아보고자 한다.

• 응용통계연구
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• 제23권5호
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• pp.783-797
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• 2010

이 논문은 투자성과에 있어 자산배분의 중요성이 크다는 것에 주목하여 최적 자산배분을 달성하기 위한 투자의 수단으로써 펀드의 가능성을 살펴보고자 한다. 우선 펀드의 자산별 배분(또는 스타일)을 정의하기 위해 Sharpe(1992)가 제시한 펀드 수익률 기반 스타일 분석을 적용하였다. 정의된 펀드의 스타일이 일정기간 유지되는지 확인하기 위해 특정 개별 투자자를 가정하고 스타일 변동 허용범위를 설정한 뒤 이를 충족시키는지 살펴보았다. 국내 주식형 펀드에 한정하여 실증 분석을 수행한 결과 투자시점에 가정하였던 펀드의 스타일이 투자 예상 기간 동안 지속적으로 유지되지 않음을 확인하였고 그 원인을 파악하고자 하였다. 몇 가지 분석 상의 한계에도 불구하고 실증 분석의 결과 펀드가 투자자의 최적 자산배분 달성을 위한 투자수단으로 적절치 않다는 결론을 얻을 수 있었다.

• 대한치과의사협회지
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• 제48권1호
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• pp.45-55
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• 2010

Purpose: The aim of this study was to evaluate 1 year cumulative survival rate of implants placed on augmented sinus using Osteon$^{(R)}$, bone graft material and to assess height of the grafted material radiographically. Material and Methods: 10 maxillary sinuses were augmented in 10 patients and 25 implant fixtures were installed simultaneously or after 6 months healing period. The height of the sinus graft material was measured using panoramic images immediately after augmentation and up to 19 months subsequently. Changes in the height of the sinus graft material were calculated with respect to implant length and original sinus wall height. Results: The cumulative survival rate was 100% in all 25 implants. Additionally, normal healing process without any complication was observed in all patients. The mean crown/Implant ratio was 1.25. The mean marginal bone loss was 0.95mm and the mean resorption rate of Osteon$^{(R)}$ was 0.05mm/month. The fastest resorption site of Osteon$^{(R)}$ is the first molar area. The grafted material was well maintained in sinus and decreased slightly over 1 year. Conclusion: In conclusion, It can be suggested that Osteon$^{(R)}$ may have predictable result when it was used as a grafting material for sinus floor augmentation.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제6권4호
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• pp.1248-1266
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• 2012

This paper presents a multilevel reversible data hiding method based on histogram shifting which can recover the original image losslessly after the hidden data has been extracted from the stego-image. The method of prediction is adopted in our proposed scheme and prediction errors are produced to explore the similarity of neighboring pixels. In this article, we propose two different predictors to generate the prediction errors, where the prediction is carried out using the center prediction method and the JPEG-LS median edge predictor (MED) to exploit the correlation among the neighboring pixels. Instead of the original image, these prediction errors are used to hide the secret information. Moreover, we also present an improved method to search for peak and zero pairs and also talk about the analogy of the same to improve the histogram shifting method for huge embedding capacity and high peak signal-to-noise ratio (PSNR). In the one-level hiding, our method keeps image qualities larger than 53 dB and the ratio of embedding capacity has 0.43 bpp (bit per pixel). Besides, the concept with multiple layer embedding procedure is applied for obtaining high capacity, and the performance is demonstrated in the experimental results. From our experimental results and analytical reasoning, it shows that the proposed scheme has higher PSNR and high data embedding capacity than that of other reversible data hiding methods presented in the literature.

• 대한본초학회지
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• 제26권3호
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• pp.57-63
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• 2011

Objectives : Peucedani Radix ('Jeonho' in Korean) is the root of Peucedanum praeruptorum or Angelica decursiva. However, the root of Anthriscus sylvestris has usually been distributed as Jeonho. This study was performed to determine the discriminative criteria of Jeonho, focused on distribution in Korean markets. Methods : We have determined identification keys to discriminate each Jeonho samples, through observation of external morphology of original plants, and the research of external and internal morphological features of dried Jeonho herbs. Results : Because of identical to the Korean plant name 'Jeonho', Anthrisci Radix had been came into use as a substitute of Jeonho in Korea during the time of Japanese colonial rule. The original plants of Jeonho and its substitute are discriminated with shape of leaf, leaf margin and color of stem. External morphological features of the medicinal herbs of Jeonho are different in the color of cross-sections, pellucid dot, white powder. Internal morphological points, such as fiber bundle of xylem, seconadary mudullary ray and ray of xylem were also used as discriminative criteria for Jeonho. Further details(e.g. identificaion keys) are in the article. Conclusions : We think that these discriminative criteria will be meaningful in identifying the substitutes and adulterants of Jeonho.