골유착성 임플랜트 보철물 장착시 하악골의 탄성변형 및 응력분포에 관한 삼차원 유한요소법적 연구

김용호,김영수,김창회,Kim, Yong-Ho,Kim, Yung-Soo,Kim, Chang-Whe 대한치과보철학회 1998 대한치과보철학회지 Vol.36 No.2

The human mandible is always under the condition of loading by the various forces extorted by the attached muscles. The loading is an important condition of the stomatognathic system. This condition is composed of the direction and amount of forces of the masticatory muscles, which are controlled by the neuromuscular system, and always influenced by the movement of both opening and closing. Mandible is a strong foundation for the teeth or various prostheses, nevetheless it is a elastic body which accompanies deformation by the external forces on it. The elastic properties of the mandible is influenced by the various procedures such as conventional restorative treatments, osseointegrated implant treatments, reconstructive surgical procedures and so forth. Among the treatments the osseointegrated implant has no periodontal ligaments, which exist around the natural teeth to allow physiologic mobility in the alveolar socket. And so around the osseointegrated implant, there is almost no damping effect during the transmission of occlusal stress and displacements. If the osseointegrated implants are connected by the superstructure for the stabilization and effective distribution of occlusal stresses, the elastic properties of mandible is restricted according to the extent of 'splinting' by the superstructure and implants. To investigate the change of elastic behaviour of the mandible which has osseointegrated implant prosthesis of various numbers of implant installment and span of superstructre, a three dimensional finite element model was developed and analyzed with conditions mentioned above. The conclusions are as follows : 1. The displacements are primarily developed at the area of muscle attachment and distributed all around the mandible according to the various properties of bone. 2. The segmentation in the superstructure has few influence on the distribution of stress and displacement. 3. In the load case of ICP, the concentration of tensional stress was observed at the anterior portion of the ramus($9.22E+6N/m^2$) and at the lingual portion of the symphysis menti($8.36E+6N/m^2$). 4. In the load case of INC, the concentration of tensional stress was observed at the anterior portion of the ramus($9.90E+6N/m^2$) and the concentration of tensional stress was observed at the lingual portion of the symphysis menti($2.38E+6N/m^2$)). 5. In the load case of UTCP, the relatively high concentration of tensional stress($3.66E+7N/m^2$) was observed at the internal surface of the condylar neck.

최근 한국 정당의 개혁조치에 대한 평가

김용호(Yong-Ho Kim) 한국정당학회 2008 한국정당학회보 Vol.7 No.1

이 글의 목적은 2002년 3김 은퇴 이후 한국정당이 시도한 개혁조치를 평가하고, 향후 새로운 정당발전 방향을 제시하는 것이다. 평가의 대상은 지구당 폐지, 지지자중심의 정당 만들기, 원내정당화, 국민참여경선제, 당정분리 등이다. 이러한 개혁조치는 3김 정당정치의 폐해인 고비용 정당구조, 머신정당, 비민주적 공천제도, 제왕적 총재문제 등을 해결하는 데 상당히 기여하였다. 그러나 이러한 개혁조치들이 예상하지 못한 새로운 문제점을 초래하였는 바, 기존의 지방정당조직과 당원의 충성심을 약화시켜 정당조직의 역할이 매우 축소되는 바람에 미디어와 시민단체와 네티즌집단 등의 정치적 영향력이 상대적으로 강화되었다. 앞으로 한국정당은 국민의 생활정치 요구를 입법화하여 삶의 질을 향상시킴으로써 정당지지자를 많이 모아서 명실상부한 대중정당을 건설하는 것이다. The major purpose of this paper is to evaluate recent reforms which South Korean political parties have so far made since political retirement of the longtime party leaders often called “three Kims” in 2002. These reforms include the legal abolition of the local party chapters at the electoral district-level, the introduction of U. S.-style primary system to elect presidential candidate, some attempts to transform a machine-type party into a parliamentary-oriented party for the autonomy of the party’s parliamentary members, and the reorientation of the member-centered party management into the supporter-oriented one. These reforms certainly contributed to a certain degree to the elimination of some negative aspects of the “three-Kims-style” party politics. At the same time, these reforms had also brought some “unintended” consequences of weakening the party's organizational strength as well as the partisan loyalty of party members. Hereafter, the South Korean parties need to cultivate their support bases at the grass-roots level by providing more substantial benefits to the voters with the effective legislation of the economic and social polices.

민주화이후 한국 대통령제의 진화과정 분석

김용호 ( Kim Yong-ho ) 한국의회발전연구회 2017 의정연구 Vol.23 No.1

이 글은 비교정치제도적 시각에서 민주화이후 지난 30년간 한국 대통령제의 진화과정을 분석, 평가, 전망하였다. 민주화이후 한국 대통령제는 3김시기의 제왕적 대통령제에서 3김이후 “대통령중심적 대통령제(president-centered presidentialism)”로 진화하였다. 이러한 진화과정에 제도적 요인(정치자금법을 비롯한 주요 정치관련법, 각 정당의 제도 개혁)과 비제도적 요인(대통령의 리더십성격)이 작용하였다. 이러한 진화과정을 분석한 결과 우리들은 앞으로 정치제도개혁을 통해 현행 “대통령중심적 대통령제”를 “대통령-의회 권력분립형 대통령제”로 발전시킬 가능성을 발견하였다. 특히 지난 30년간의 민주화 추세를 고려해보면 한국 대통령제가 장차 권력분립형 대통령제로 발전해 나갈 수 있을 것으로 전망된다. 이제 통치과정에서 대통령 우위의 “대통령중심적 대통령제”에서 벗어나 앞으로 행정, 입법, 사법 3부가 서로 대등한 통치의 주체로서 견제와 균형을 이루어 민주주의를 발전시켜 나가야 한다. 그동안 국회의 대통령 견제와 감독기능의 증가, 사법부의 독립성 증대, 시민사회의 책임 있는 정치적 참여 증가등이 권력분립형 대통령제를 가능하게 할 것으로 본다. 따라서 지난 30년간 대통령제하에서 우리들이 이룩한 민주적 성과를 유지, 발전시켜 나가려면 현행정부형태를 바꾸지 않고 대통령제를 유지하는 가운데 현행 대통령제의 문제점을 시정해 나가는 것이 바람직하다. 이를 위해 현행 헌법상의 대통령 권한을 축소하고, 4년 중임의 정부통령제로 변경하는 개헌이 필요하다. 또 현행 헌법의 내각제적요소를 제거해야 한다. 그리고 권력분립형 대통령제를 뒷받침할 수 있도록 국회제도, 정당제도, 선거제도, 대선후보 경선제도를 개선하고 대통령제와 관련된 잘못된 인식과 잘못된 정치적 관행을 고쳐 나가야 한다. The major purpose of this paper is to analyze the evolution of the presidential system in South Korea during the past three decades ever since the country`s democratization in 1987 from the comparative institutional perspective. As imperial presidentialism during the so-called three Kim`s era(1987-2003) disappeared right after the political retirement of the three Kims in 2003, then president-centered presidentialism emerged during the post-three Kim`s era, since the country`s recent three presidents possessed their relatively low-level of partisan power in terms of their control of National Assemblies and their respective presidents` parties during their presidencies. South Korea has now a strong possibility to transform the current president-centered presidentialism into the American-style separatist presidential system in the near future, since the country`s National Assembly has continuously been making its efforts to function as an effective governing body being compatible with the American Congress. In addition, the country`s judiciary branch has effectively been playing a political role like the US supreme court ever since the country`s democratization in 1987. It is also emphasized that South Korea`s civic society is currently playing as a guardian of democracy through its effective and responsive political participations in many public sectors for promoting civic liberties, public welfare, and other democratic values. South Korea now needs to carry out constitutional revisions, political reforms of legislative system, party system, and electoral system as well as correct some contradictory political understandings and habits in a way to transform the current president-centered presidentialism into American-style separatist presidential system in the near future.

장막 침윤이 없는 위암 환자에서 수술 후 보조적 화학 요법에 대한 전향적 연구 -중간 보고-

김용호,김병식,이창환,김완수,육정환,오성태,박건춘,Kim Yong-Ho,Kim Byung-Sik,Lee Chang-Hwan,Kim Wan Su,Yook Jung-Whan,Oh Sung-Tae,Park Kun-Choon 대한위암학회 2001 대한위암학회지 Vol.1 No.4

Purpose: We have carried out prospective randomized clinical trial to compare survival benefit and side effect among three postoperative adjuvant chemotherapeutic regimens in serosa-negative gastric cancer patients. Materials and Methods: Total 317 cases were recognized as serosa negative and randomized into three groups at operating room. Out of them, 172 cases were excluded because of various reasons and 135 cases were analyzed finally; Group A 36 cases, Group B 49 cases, Group C 50 cases. Group A were treated with intravenous FP combination therapy, group B with MF combination therapy and group C with oral $UFT^{(R)}$ (mixture of Tegafur and Uracil) for one year. The median follow-up period was 30 months. Results: $88.9\%$ of Group A, $83.7\%$ of Group B and $90.4\%$ of Group C received adequate chemotherapy. The complication rates of Group A ($44.4\%$) was significantly higher than group B ($20.4\%$) and group C ($24.0\%$)(P<0.05). Most frequent complications were nausea and vomiting. The 3-year survival rates and disease-free survival rates were $92.2\%$ and $89.9\%$ respectively (Group A: $96.6\%,\;87.8\%$, B: $90.3\%,\;87.7\%$, C: $95.7\%,\;93.8\%$). There were no significant differences in survival rate and disease-free survival rate among the three groups (P>0.05). Conclusion: This study might suggest that the survival benefit of postoperative adjuvant chemotherapy for gastric Pseudomonas aeruginosa, and therefore it may be a useful adjunct tool for detection of Pseudomonas aeruginosa infection in combination with other conventional techniques.

멀티미디어 텔레컨퍼런스를 위한 새로운 영상 압축 기술

김용호,장종환,Kim, Yong-Ho,Chang, Jong-Hwan 배재대학교 자연과학연구소 1992 自然科學論文集 Vol.5 No.2

A new texture segmentation-based image coding technique which performs segmentation based on roughness of textural regions and properties of the human visual system (HVS) is presented for multime-dia teleconference. The segmentation is accomplished by thresholding the fractal dimension so that textural regions are classified into three texture classes; perceived constant intensity, smooth texture, and rough texture. An image coding system with high compression and good image quality is achieved by developing an efficient coding technique for each segment boundary and each texture class. We compare the coding efficiency of this technique with that of a well established technique (discrete cosine transform (DCT) image coding). 텍스처럴 리전의 러프니스와 사람의 시각 시스템의 특성에 기초하여 세크멘테이션을 수행하는, 멀티미디어 텔레컨퍼런스를 위한 새로운 텍스처 세그멘테이션-베이스 영상 코우딩 기술을 제안한다. 세그멘테이션은, 텍스처의 영역이, 지각된 콘스탄트 인텐시티와 스무드 텍스처 및 러프 텍스처의 세가지 텍스처 클래스로 분류되도록 프랙탈 디멘전을 쓰레쉬호울딩하여 이루어진다. 각 세그먼트 바운더리와 각 텍스처 클래스를 위한 효과적인 코우딩 기술을 개발하여 높은 압축률과 좋은 영상 품질을 갖는 영상 코우딩 시스템을 달성하고, 이 기술의 코우딩 효율을 잘 확립된 기술 (디스크릿 코사인 트랜스폼(DCT) 영상 코우딩)의 코우딩 효율과 비교한다.

TV-Anytime 메타데이터를 이용한 맞춤형 데이터 방송 서비스에 관한 연구

김용호,이한규,최진수,홍진우,Kim Yong Ho,Lee Han-kyu,Choi Jin Soo,Hong Jin Woo 한국정보처리학회 2005 정보처리학회논문지B Vol.12 No.6

디지털방송이 시작되고, 방송 매체가 다양해지면서 시청자가 볼 수 있는 방송 채널과 프로그램의 수가 증가하고 있다 이 많은 방송 채널중에서 시청자가 자신이 원하는 프로그램을 찾기 위해서는 기존의 프로그램 가이드만으로는 한계가 있다. TV-Anytime Forum(TVAF)에서는 메타데이터를 기반으로 시청자가 원하는 발송 콘텐츠를 원하는 시간에 소비할 수 있는 맞춤형 방송 서비스를 제공하는 방법에 대해서 규격화하였다. 방송 콘텐츠 중에서 특히 데이터방송 콘텐츠는 일반 AV 콘텐츠와는 다른 구조를 갖고 있으며, 따라서 데이터방송을 위한 새로운 메타데이터의 구조나 전승서버와 단말에서의 동작 메커니즘이 필요하다. 본 논문에서는 TV-Anytime(TVA) 메타데이터를 이용하여 맞춤형 데이터방송 서비스를 제공하기 위한 방법에 대해서 설명할 것이다. The number of broadcasting channels and contents are increasing with the arrival of digital broadcast and various broadcasting medium. However, there is a limit on searching of the program by using conventional program guide. Therefore, personalized broadcasting service to provide the environment, that user is able to consume his/her customized broadcasting contents at anytime, is standardized by TV-Anytime Forum. Especially. the structure of data broadcasting contents have different from that of AV contents. Therefore, it is necessary to new structure of the metadata for personalized data broadcasting service and new mechanism for data flow of broadcasting system. In this paper, we introduce a method for personalized data broadcasting service using TV-Anytime metadata.

Vibrio Vulnificus Lipopolysaccharide의 생물활성과 그에 미치는 Cell Wall Protein-A의 영향

김용호,신홍대,강신원,Kim, Yong-Ho,Shin, Hong-Dae,Kang, Shin-Won 생화학분자생물학회 1988 한국생화학회지 Vol.21 No.3

Vibrio(V.) vulnificus 대량 배양에 의하여 회수된 균체로부터 lipopolysaccharide(LPS)와 cell wall protein-A(CWP-A)를 추출하여 Sprague Dawley rat에서 생물활성을 생체의 독소 배설 기능에 관련된 장기의 효소 및 혈중 성분을 비교 측정한 결과 aspartate transaminase(AST), alanine aminotransferase(ALT) 및 blood urea nitrogen(BUN)은 LPS쪽의 활성이 높았으나 lactic dehydrogenase(LDH)는 CWP-A쪽이 훨씬 높았다. 기타의 측정군은 양자에서 모두 유사한 활성을 나타내었다. 따라서 숙주 혈중 순환 효소 및 성분의 변동 성향을 고려해 볼 때 V. vulnificus 병독성 해석에 내독소인 LPS 뿐만 아니라 CWP-A도 중요하게 고려되어야 한다고 본다. Lipopolysaccaride(LPS) and cell wall protein-A(CWP-A) were extracted from cell wall of Vibrio(V.) vulnificus. The biological activities of CWP-A were weaker than LPS in aspartate transaminase(ASP), alanine aminotransferase(ALT) and blood urea nitrogen(BUN), but more strong in lactic dehydrogenase(LDH) and very similiar in other test. CWP-A of V. vulnificus were considered to be important for the expression of virulence, LPS as well.

학생특성에 따른 고객만족변수의 차이

김용호,Kim Yong-Ho 대한경영정보학회 2000 경영과 정보연구 Vol.4 No.-

Marketing is a topic of growing interest to nonprofit organizational managers(for example, hospitals, museums, charities and, churches, universities and colleges) as their organizations confront new, complex marketplace problems. These organization heads(specially in university and college) are laking their first, tentative steps toward marketing, often confusing it with its advertising and selling subfunctions. A genuine marketing response has been undertaken by a relatively small number of college in america. Their approach is best described as market-oriented institutional planning. In these approach, marketing is recognized as much more then mere promotion, and indeed, the issue of promotion cannot be settled in principles until more fundamental issues are resolved. According to market-oriented institutional planning customer satisfaction is one of the most important concept in university(college) marketing. Therefore, this study reviews literatures about university(college) marketing and general customer satisfaction. The literature study suggests some research hypotheses about customer satisfaction in college. Next, these hypotheses are tested empirically using ${\chi}^2-test$, multiple linear regression analysis and t-test. The research results worth explorative study on the customer satisfaction in the college.

Vibrio vulnificus 의 Cell Wall Protein A 와 Lipopolysaccharide ( LPS ) 의 추출 및 이들이 효소활성에 미치는 영향

김용호,이봉헌,박장수,강신원 ( Yong Ho Kim,Bong Hun Lee,Jang Su Park,Shin Won Kang ) 생화학분자생물학회 1994 BMB Reports Vol.27 No.5

Lipopolysaccharide (LPS) and cell wall protein A from Vibrio vulnificus were extracted, were tested the lethal toxicity and Limulus amebocyte gelation activity, and were examined the effect of cell wall protein A on the enzyme activity of LPS. These results were compared to those of LPSs and cell wall protein As from Escherichia coli and Salmonella typhimurium. The lethal toxicity of V vulnificus LPS (LDSO was 138.6 ㎎/㎏) was lower than those of E. coli LPS (56.3 ㎎/㎏) and S. typhimurium LPS (37.5 ㎎/㎏), but the Limulus gelation activities of all LPSs were the same value (0.1 ng/㎖). The results of enzyme activity by LPS and cell wall protein A have shown that the activities of alanine aminotransferase (ALT), aspartate aminotransferase (AST), and lactate dehydrogenase (LDH) were increased. The cell wall protein A on the enzyme activities of LPS was effective; the enzyme activities of LPS-cell wall protein A mixture were greater than those of LPS only.

내가 본 중국건축 - 대만을 둘러보고

김용호,Kim, Yong-Ho 대한건축사협회 1971 建築士 Vol.1971 No.2