『상한론(傷寒論)』 변병진단체계(辨病診斷體系)에 근거하여 치료한 음양이차후노복병(隂陽易差後勞復病) 증례 4례

조성환,이성준,Cho, Seong-Hwan,Lee, Sung-Jun 대한상한금궤의학회 2016 대한상한금궤의학회지 Vol.8 No.1

Objective : This study is to report 4 Eumyangyeokchahunobok-byung cases diagnosed and treated according to newly hypothesized Eumyangyeokchahunobok-byung definition based on Shanghanlun disease pattern identification diagnostic system. Methods : We analyzed 4 clinical cases diagnosed with Eumyangyeokchahunobok-byung and treated by herbal medicine, which included in Eumyangyeokchahunobok-byung chapter of Shanghanlun according to newly hypothesized definition. Results : Dermatology Life Quality Index decreased from 25 to 10 on first patient, dizziness handicap inventory decreased from 64 to 2 on second patient, dizziness handicap inventory also decreased from 56 to 2 on third patient, and fatigue severity scale decreased from 7 to 2 on fourth patient. Conclusions : Not only all the patients' chief complaints relieved but their other clinical problems such as allergic rhinitis, body pain, constipation, reflux esophagitis also improved. These results highly insist that there is quite a possibility that Eumyangyeokchahunobokbyung means various diseases caused by reversed sleep cycle.

발효음식에 의한 연성 의치상 이장재의 색상 변화에 관한 연구

조성환,임헌송,신수연,Cho Seong-Hwan,Lim Heon-Song,Shin Soo-Yeon 대한치과보철학회 2004 대한치과보철학회지 Vol.42 No.5

Statement of problem: The clinical criteria of soft lining materials are resilience over an extended period, capability of forming a strong bond with denture base materials, dimensional stability, adequate tear strength, and color stability. Many researches and reports dealt with food colorants or denture cleanser, but not with fermented foods. Purpose : This study was designed to assess what fermented foods, such as soy sauce and red pepper paste that many Koreans have eaten, influence on the color stability of soft denture liners. Material and methods: The color differences (${\Delta}E^*$) were measured by spectrophotometer with different immersion time. For the procedure, thirty disk-shape specimens per 4 soft denture linears(Molloplast-$B^{(R)}$, Ufi Gel $SC^{(R)}$, Dura $Base^{(R)}$, Sofreliner $MS^{(R)}$) were fabricated with a thickness of 2mm and 16mm in diameter. Each 10 specimen were immersed into the beakers of fermented foods distilled water, and $L^*$, $a^*$, $b^*$ values were measured for the color difference(${\Delta}E^*$), on the 1st, 7th, and 28th day with spectrophotometer. Result and conclusion : 1. There were significant differences between samples(soy sauces, red pepper pastes, and distilled water) in Sofreliner $MS^{(R)}$ of 1st day after immersion(p<0.05). There were significant differences between samples in Sofieliner $MS^{(R)}$ and Ufi Gel $SC^{(R)}$ of 7th days after immersion(p<0.05). There were significant differences between samples in Molloplast-$B^{(R)}$ of 28th day after immers ion(p<0.05). 2. In red pepper pastes, ${\Delta}E^*$ values of Molloplast-$B^{(R)}$, Ufi Gel $SC^{(R)}$, Sofrelinev $MS^{(R)}$ weve higher than 3.3. Those values were not clinically acceptable. In soy sauces, ${\Delta}E^*$ values of all denture liners were lower than 3.3. ${\Delta}E^*$values of Ufi Gel $SC^{(R)}$ were higher than those of other denture liners 3. Based on the above results , red pepper paste causes more discoloration than soy sauce.

『상한론(傷寒論)』 궐음병(厥隂病)에 대한 고찰: 변병진단체계(辨病診斷體系)에 입각해 치료한 증례 2례에 근거하여

조성환,윤효중,이성준,Cho, Seong-Hwan,Yun, Hyo-Joong,Lee, Sung-Jun 대한상한금궤의학회 2017 대한상한금궤의학회지 Vol.9 No.1

Objective : This study is to propose a new hypothesis about the interpretation of Jueyinbing in Shanghanlun by studying 2 Jueyinbing cases. Methods : We analyzed the original form of the chinese characters 'Jue(厥)', 'Jueyin(厥陰)' and 'Huoluan(?亂)' and tried to understand their contexts in Shanghanlun. At the same time, we analyzed 2 clinical cases diagnosed and treated as Jueyinbing according to newly hypothesized definition. Results : Both patients suffered from eye diseases which caused by concentrating on a sophisticated work by straining their hands, feet and chest during the night time. After the herbal intervention, their eye diseases are improved firstly. The National Eye Institute 25-item Visual Function Questionnaire (NEI-VFQ) score increased on both patients. Not only all the patients' chief complaints relieved but their other clinical problems such as limb pain, hand tremble also improved. Conclusions : These results highly insist that, at least in 15 characters provision of Shanghanlun, Jueyinbing had had the different usage from the conventional terminology, and it is assumed that Jueyinbing means the disease made by concentrating on a sophisticated work by straining hands, feet and chest during night time.

백호가인삼탕(白虎加人蔘湯)으로 호전된 브레인 포그(Brain fog) 1례 임상보고

조성환 ( Seong-hwan Cho ) 대한상한금궤의학회 2020 대한상한금궤의학회지 Vol.12 No.1

Objective: This study aimed to report the effect of Baekhogainsam-tang on brain fog. Methods: A 59-year-old female patient complained of brain fog and waking up frequently during the night. Based on the Shanghanlun disease pattern identification diagnostic system, the patient was treated with Baekhogainsam-tang. The result was evaluated using the score. Results: After administration of Baekhogainsam-tang for 45 days, the MFI score decreased from 89 to 40. The average number of instances of waking up during the night decreased from 3 to 1.5. Conclusions: Some cases of brain fog can be treated by Baekhogainsam-tang.

컴퓨터 교과 교육 2 : 계획된 행동이론(TPB)에 의한 정보통신윤리 실천 행동의도의 분석

조성환 ( Seong Hwan Cho ),김길모 ( Kil Mo Kim ),김성식 ( Seong Sik Kim ) 한국컴퓨터교육학회 2009 한국컴퓨터교육학회 학술발표대회논문집 Vol.13 No.2

10대 청소년들을 대상으로 하는 정보통신윤리 교육의 궁극적인 목적은 학생들 스스로가 정보사회에서 무엇이 옳고, 옳지 않은지를 판단하고 올바른 행동을 하고자 하는 의식을 향상시키는 것이다. 따라서 근본적인 차원에서 인터넷 중독, 불법 SW 다운, 사이버 폭력 등과 같은 정보통신윤리 역기능 행동이 왜 유발되는지에 대한 올바른 이해가 선행되어야 할 필요가 있다. 이에 본 연구에서는 사회심리이론의 하나인 계획된 행동이론(TPB)을 원용하여 중학교 학생들의 정보통신윤리 행동의도에 영향을 미치는 요인 간 관계를 회귀분석을 통하여 분석하였다.

키워드 네트워크 분석 방법을 활용한 블록체인 트렌드 분석에 관한 연구

조성환(Seong-Hwan Cho) 한국정보전자통신기술학회 2018 한국정보전자통신기술학회논문지 Vol.11 No.5

본 연구는 키워드 네트워크 분석에 사용되는 텍스트마이닝과 의미연결망 분석 방법을 활용하여 블록체인의 산업 활용 분야로 언론 및 정부 발표에서 언급되고 있는 ‘금융’, ‘에너지’, ‘물류’를 언급한 기사들을 비교 분석하였다. 블록체인 적용이 언급된 산업 분야별로 기사의 내용 및 키워드의 차이를 파악하고 비교 분석하는 것을 목적으로 하였다. 2017년 1월부터 2018년 7월까지 언론에서 보도한 총 43,093건의 기사를 Python BeautifulSoup을 이용하여 네이버 뉴스에서 수집하였고, 세 용어의 상호 중복을 제거하기 위한 정제 작업을 수행하였다. 이후 키워드 간 네트워크 분석을 위해 텍스톰(Textom)과 UCINET을 이용하여 세 용어에 대한 텍스트마이닝과 의미연결망 분석을 진행하였다. 분석 결과, 세 용어는 모두 ‘기술’ 측면에서는 유사한 단어들이 있었으나, ‘정부 정책’이나 ‘산업’측면의 이슈 등에서 내용적 차이가 있었다. 또한 빈도 및 중심성에 있어서도 차이가 있음을 확인할 수 있었다. This study aims to identify and compare contents and keywords used in articles related to blockchain applications to various industries. The text mining and Semantic Network Analysis, as methods of keyword network analysis, were used to analyze articles including terms of ‘finance’ ‘energy’ and ‘logistics’, which media and government frequently mentioned as areas that can apply blockchain technologies. For this study, data were collected from 43,093 articles from January, 2017 through July, 2018. Data crawling was carried out by using Python BeautifulSoup and data cleaning was performed in order to eliminate mutual redundancies of the three terms. After that, text mining and semantic network analysis were performed using Textom and UCInet for network analysis between keywords. The results showed that all the three terms were similar in terms of "technology", but there were differences in the contents of "government policy" or "industry" issues. In addition, there were differences in frequencies and centralities of these terms.

압축 영상의 강건한 전송을 위한 효과적인 에러 내성 엔트로피 부호화

조성환(Cho, Seong-Hwan),김응성(Kim, Eung-Sung),김정식(Kim, Jeong-Sig) 한국산학기술학회 2006 한국산학기술학회논문지 Vol.7 No.2

많은 영상과 비디오 압축 알고리듬들은 입력 영상을 블록으로 나눈 후, 각 블록 데이터로부터 가변 길이 부호 스트림을 생성한다. 가변 길이 부호를 에러 발생 환경 채널에 연속적으로 전송할 경우, 해당 부호화기들은 채널 에러에 많은 영향을 받는다. 따라서 대부분의 영상과 비디오 기법에서는 채널 에러에 대하여 비트 스트림을 보호하기 위한 방법으로 디코딩의 시작 위치를 지시하기 위한 재동기(resynchronization) 마커로 여분의 제어 비트들을 추가한다. 이런 여분의 추가 정보를 감소시키기 위한 기법으로 에러 내성 엔트로피부호화(EREC)가 널리 알려져 있다. 본 논문에서는 추가되는 여분의 제어 비트를 감소하기 위해 가변 길이 부호들을 고정 길이 부호의 형태로 인코딩 하는 에러 내성 엔트로피 코드(EREC Error Resilient Entropy Code)의 성능을 향상시켜 전송 에러 발생에서 전송되는 압축 영상의 화질을 크게 개선할 수 있는 기법을 제안한다. 기존의 EREC와 제안 기법을 비교하였을 때, 동일한 비트 에러율(BER)에서 제안 기법이 객관적 화질뿐만 아니라 주관적으로 또 향상된 화질의 결과 영상을 얻을 수 있었다. Many image and video compression algorithms work by splitting the input image into blocks and producing variable-length coded bits for each block data. If variable-length coded data are transmitted consecutively, then the resulting coder is highly sensitive to channel errors. Therefore, most image and video techniques for providing some protection to the stream against channel errors usually involve adding a controlled amount of redundancy back into the stream. Such redundancy might take the form of resynchronization markers, which enable the decoder to restart the decoding process from the known state, in the event of transmission errors. The Error Resilient Entropy Code (EREC) is a well known method which can regain synchronization without any redundant information to convert from va.riable-length code to fixed-length code. This paper proposes an enhancement to EREC, which greatly improves its transmission ability for the compressed image quality without any redundant bits in the event of errors. The simulation result shows that the both objective and subjective quality of transmitted image is enhanced compared with the existing EREC at the same BER(Bit Error Rate).

윤곽선 맵과 다중 면 사이드 매치 유한상태 벡터 양자화를 이용한 영상 압축

조성환(Cho, Seong-Hwan),김응성(Kim, Eung-Sung) 한국산학기술학회 2007 한국산학기술학회논문지 Vol.8 No.6

본 논문에서는 영상의 윤곽선을 검출하여 배경 블록과 윤곽선 블록으로 분류하고 윤곽선 맵을 작성하여, 윤곽선 블록에 대해서는 다시 DCT의 AC 계수를 사용하여 16개로 세분화한 후, 다중 면 사이드 매치 유한상태 벡터 양자화를 수행하는 알고리듬을 제안한다. 윤곽선 맵의 정보에 따라 각각 주 부호책으로부터 상태 부호책을 작성하며, 현재 블록의 2면 또는 3면에 대해 사이드 매치 계산을 수행한다. 전송 비트 수를 줄이기 위해 먼저 부호화되는 블록들 중 배경 블록에 한하여 주 부호책으로 부호화 할 것인지를 결정한다. 또한 복호화기로 전송하는 부호단어 인덱스의 할당 비트를 줄이기 위해서 가변 길이 부호화를 수행한다. Zelda, Lenna, Bridge, Peppers 영상에 대하여 본 알고리듬으로 영상을 부호화 했을 때 SMVQ와 TSMVQ 알고리듬보다 더 좋은 영상의 화질을 얻을 수 있었다. In this paper, we propose an algorithm which implements a multi-sided side match finite-state vector quantization(MSMVQ). After extracting the edge information from an image and classifying the image into edge blocks or non-edge blocks, we construct an edge map. We subdivide edge blocks into sixteen classes using discrete cosine transform(DCT) AC coefficients. Based on edge map information, a state codebook is made from the master codebook, and side match calculation is done for two-sided or three-sided current block of image. For reducing transmitted bits, a decision is made whether or not to encode the non-edge blocks among the pre-coded blocks by using the master codebook. Also for reducing allocation bits of codeword indices to decoder, a variable length coder is used. Considering the comparison with side match finite-state vector quantization(SMVQ) and two-sided SMVQ(TSMVQ) algorithm about Zelda, Lenna, Bridge and Peppers image, the new algorithm shows better picture quality than SMVQ and TSMVQ respectively.

默齋日記 속 傷寒 및 傷寒論 에 대한 인식 연구

조성환(Seong-Hwan Cho),김동율(Dong-Ryul Kim) 한국의사학회 2019 한국의사학회지 Vol.32 No.1

TheDiaryofMuk-JaeisahistoricalrecordthatdescribesmanysocialaspectsoftheJoseonperiodinthe16thcentury.Itrecordsmany scenesofitsauthor,LeeMun-Geon,treatingpatients.ThispaperusesTheDiaryofMuk-Jaetoexaminechangesintheperceptionof theconceptofcolddamageandthetextoftheShanghanlun(TreatiseonColdDamage)intheJoseonperiodinthe16thcentury.In TheDiaryofMuk-Jae,colddamageisunderstoodinconnectionwithtwocategories:‘dangerousdisease’and‘diseasecausedbycold’. TheDiaryofMuk-JaealsopresentstheShanghanlunnotasaworklimitedtotheconceptofcolddamage,butasamedicaltextthat couldbewidelyusedformanydifferentdiseases.Thus,TheDiaryofMuk-Jaemayrepresentapointoftransitionbetweenintheperception ofcolddamageasseenintheUibangYuchui(TheCollectionofMedicalProcedures)ofthe15thcenturyandtheDonguibogam ofthe 17thcentury.

DCT 맵 FSVQ와 단방향 분포 허프만 트리를 이용한 영상 압축

조성환(Cho Seong Hwan) 한국정보처리학회 1997 정보처리학회논문지 Vol.4 No.10

In this paper, a new codebook design algorithm is proposed. It uses a DCT map based on two-dimensional discrete cosine of transform (2D DCT) and finite state vector quantizer (FSVQ) when the vector quantizer is designed for image transmission. We make the map by dividing input image according to edge quantity, then by the map, the significant features of training image are extracted by using the 2D DCT. A master codebook of FSVQ is generated by partitioning the training set using binary tree based on tree-structure. The state codebook is constructed from the master codebook, and then the index of input image is searched at not master codebook but state codebook. And, because the coding of index is important part for high speed digital transmission, it converts fixed length codes to variable length codes in terms of entropy coding rule. The huffman coding assigns transmission codes to codes of codebook. This paper proposes single-side growing huffman tree to speed up huffman code generation process of huffman tree. Compared with the pairwise nearest neighbor (PNN) and classified VQ (CVQ) algorithm, about Einstein and Bridge image, the new algorithm shows better picture quality with 2.04 dB and 2.48 dB differences as to PNN, 1.75 dB and 0.99 dB differences as to CVQ respectively.