Apatite - Wollastonite Glass - Ceramics 재료개발 및 치면열구전색재로의 이용을 위한 동물실험 연구

김용성,신승철,김호건,신건철,( Yong Sung Kim,Seung Chul Shin,Ho Keon Kim,Deon Chul Shin,Tadashi Kokubo ) 대한예방치과·구강보건학회 1990 大韓口腔保健學會誌 Vol.14 No.2

인산염 함유 세치제가 치석 형성 억제 효과에 미치는 영향에 관한 임상 실험 연구

김용성,신승철,정광래 ( Yong Sung Kim,Seung Chul Shin,Kwang Lae Jung ) 대한예방치과·구강보건학회 1993 大韓口腔保健學會誌 Vol.17 No.1

Sex Differences in Gut Microbiota

김용성,Tatsuya Unno,Byung-Yong Kim,Mi-Sung Park 대한남성과학회 2020 The World Journal of Men's Health Vol.38 No.1

Humans carry numerous symbiotic microorganisms in their body, most of which are present in the gut. Although recent technological advances have produced extensive research data on gut microbiota, there are various confounding factors (e.g., diet, race, medications) to consider. Sex is one of the important variables affecting the gut microbiota, but the association has not yet been sufficiently investigated. Although the results are inconsistent, several animal and human studies have shown sex differences in gut microbiota. Herein, we review these studies to discuss the sex-dependent differences as well as the possible mechanisms involved.

일제하(日帝下) 사립전문학교(私立專門學校) 도서관(?書館)

김용성,Kim, Yong-Sung 한국비블리아학회 1981 한국비블리아학회지 Vol.5 No.-

Korean private colleges under the period of Japanese control was the kernel for the educational resistance, one of the save-the-nation movements because of inculcating in Koreans the spirit of independence and self-respect under that period. Posung College Library building, erected in Commemoration of the 30th Anniversary of the Foundation, especially, was the result of Koreans systematizing ability and iron will of independence for the future generations. In this paper, an attempt to study the Korean private college libraries under the period of Japanese control is provided. The main institutions in this study are Posung College library, Chosen Christian College library (Yunhee College Library), and Ewha College Library. This study will focus to review the followings: 1. The historical background of above mentioned libraries. 2. The educational resistance under that period. 3. The comparative and analytical study of these private college libraries and Keijo Imperial University library. 4. The facilities and the basic collection development plan on the basis of presentation. 5. library services including readers services. 6. The impact of these libraries on the present private university libraries. 7. The organization and staffing pattern, and budget of these private college libraries. The followings are the outlines conclusions: 1. Korean private college libraries had been established in order to perform the educational resistance. They are one of the supporting agencies for the research activities, among the most important means of social education, and provide, no doubt, the full nutriment for hungry soul under that period. 2. These libraries have not outstripped Keijo Imperial University in collection of books as well as man power, but their collection of books coincided, in general, with their curricula, and had feature to perform the save-the-nation-movement by education. 3. The library services were appeared in the forms such as the Circulation Library, Lectures on the Use of Books and Libraries, Library Week, and Training Course for the Librarians, etc. It is thought that these activities contributed to the social and cultural development of Korea indirectly. 4. The library administration of the private colleges depended upon the director of library because of the frequent changes of staffs and the simple functional system without its middle class. 5. The Japanese Government-General in Korea gave no financial assistance to the private colleges though they were in financial difficulties more than Keijo Imperial University. 6. The ambitious ideal for foundation of universities in reality as well as in name was not achieved during that period because of the monstrous obstacle so-called the Japanese Government-General in Korea, but its ideal had a desirable effect upon these college libraries development, in particular, before and after 1935.

우리나라 공동주택의 리모델링 활성화를 위한 제도 개선 방안

김용성,이찬식,Kim Yong-Sung,Lee Chan-Shik 한국건설관리학회 2001 한국건설관리학회 논문집 Vol.2 No.1

1999년 현재 총 주택 재고 1천 백만 호 중 공동주택은 약 $57.5{\%}$를 차지하고 있다. 대부분의 공동주택은 공용부분에 대한 극히 부분적인 유지보수와 개별세대를 위주로 리모델링이 이루어지고 있어서 관리의 효율성이 낮고 사회경제적인 낭비를 초래하고 있다. 정부에서는 ‘주택건설촉진법'과 '공동주택관리령'을 제정하여 공동주택을 효과적으로 관리하기 위한 노력을 기울이고 있지만 운영상 많은 문제점이 나타나고 있다. 이러한 문제점을 해결하기 위하여, 이 논문은 문헌조사, 설문 및 면담조사를 바탕으로 우리나라의 공통주택관리방식, 금융$\cdot$세제상 지원, 특별수선충당금 적립, 자재품질 및 설계기준 그리고 리모델링 관련 법령 측면에서 공동주택의 리모델링을 활성화할 수 있는 방안을 제시하였다. In 1999, a residence stock amounts to 11 million units and apartment housing holds 57.6 percent of the residence stock. Without proper remodeling for apartment housing, a significant portion of them would be expected to be demolished shorter than their life-time due to socioeconomic reasons. Apartment housing is maintained depending on government regulations such as 'Housing Construction Promotion Code' and 'Apartment Housing Maintenance Ordinance'. However, there are many problems with implementation of them. In order to solve the problems, we focus on the remodeling system that includes Maintenance of Apartment Housing, Finance and Taxation, Special Repair Appropriation Budget, Resource Quality and Standard Plan, and Remodeling associated with the code. And this study, which being compared with the foreign remodeling system, presents the improvement scheme of system for apartment housing remodeling. This study aims to promote remodeling apartment housing and provide the suitable scheme for remodeling activities.

Nd - YAG 레이저가 치아법랑질 표면의 불소도포효과에 미치는 영향

김용성,신승철 ( Yong Sung Kim,Seung Chul Shin ) 대한예방치과·구강보건학회 1996 大韓口腔保健學會誌 Vol.20 No.2

전도성 페이스트 도포량 변화에 따른 결정질 태양광 모듈의 전기적 특성에 대한 영향성 분석

김용성,임종록,신우균,고석환,주영철,황혜미,장효식,강기환,Kim, Yong Sung,Lim, Jong Rok,Shin, Woo Gyun,Ko, Suk-Whan,Ju, Young-Chul,Hwang, Hye Mi,Chang, Hyo Sik,Kang, Gi-Hwan 한국재료학회 2019 한국재료학회지 Vol.29 No.11

Recently, research on cost reduction and efficiency improvement of crystalline silicon(c-Si) photovoltaic(PV) module has been conducted. In order to reduce costs, the thickness of solar cell wafers is becoming thinner. If the thickness of the wafer is reduced, cracking of wafer may occur in high temperature processes during the c-Si PV module manufacturing process. To solve this problem, a low temperature process has been proposed. Conductive paste(CP) is used for low temperature processing; it contains Sn57.6Bi0.4Ag component and can be electrically combined with solar cells and ribbons at a melting point of $150^{\circ}C$. Use of CP in the PV module manufacturing process can minimize cracks of solar cells. When CP is applied to solar cells, the output varies with the amount of CP, and so the optimum amount of CP must be found. In this paper, in order to find the optimal CP application amount, we manufactured several c-Si PV modules with different CP amounts. The amount control of CP is fixed at air pressure (500 kPa) and nozzle diameter 22G(outer diameter 0.72Ø, inner 0.42Ø) of dispenser; only speed is controlled. The c-Si PV module output is measured to analyze the difference according to the amount of CP and analyzed by optical microscope and Alpha-step. As the result, the optimum amount of CP is 0.452 ~ 0.544 g on solar cells.

고속 그래픽 처리를 위한 잉여수계 승산기 설계에 관한 연구

김용성,조원경,Kim, Yong-Sung,Cho, Won-Kyung 대한전자공학회 1996 전자공학회논문지-B Vol.b33 No.1

실시간 컴퓨터 그래픽 처리를 위하여는 고속 연산(승산 및 가산)회로가 필요하다. 잉여수 체계(RNS:Residue Number System)는 병렬성과 고속성을 갖는 정수연산체계이고, 또한 순환군(cyclic group)은 가산과 승산이 동형인 잉여수 연산을 수행하므로 고속의 승산기와 가산기의 설계가 가능하다. 그러므로, 본 논문에서는 DRNS(Double Residue Number System)를 제안하고, 순환부호(circula- tive code)를 이용한 고속의 잉여수 승산기를 설계하여, 이를 그래픽 프로세서의 연산기로 사용하고자 한다. 설계된 승산기는 TTL소자 74s09, 74s32를 사용한 경우 87MHz속도의 연산이 가능하다. To process computer graphics in real time, the high-speed operations(multiplier and adder) are needed to increase the speed of graphic process. RNS(Residue Number System) is integer number system that has the parallel and high-speed operation. Also, it is able to design both high-speed multiplier and adder, since a cyclic group has an isomorphic relation between multiplication and addition in RNS. So in this paper, DRNS(Double Residue Number System) is proposed, it is used for the multiplier and the adder, which are designed using a circulative code for the high-speed graphic processor in RNS. The designed multiplier would operate with the speed of 87Mzz two TTL using 74s09 and 74s32.

Cyclic Strength and Deformation Characteristics of Marine Cohesive Soil

김용성,서민우,오상은,Kim, Yong-Seong,Seo, Min-Woo,Oh, Sang-Eun The Korean Society of Agricultural Engineers 2012 한국농공학회논문집 Vol.54 No.3

본 연구에서는 해성 점성토에 대하여 반복 삼축시험을 실시하고 응력-변형률 관계 및 유효응력경로 특성 분석을 통해 동적 변형 및 강도 특성을 조사하였다. 시험에 사용된 시료는 일본 도쿠시마현의 코마츠시마 항 인근에서 채취된 점성토이며, 반복 삼축시험으로 동적 비배수 삼축시험, 동적 비배수 삼축시험 후 동적 삼축변형시험, 다단계 동적 비배수 삼축시험, 동적 삼축 변형시험 등 4종류의 시험을 수행하고, 시험 주파수로서 0.1 및 0.01 Hz을 적용하였다. 본 연구 결과 0.01 Hz로 수행된 동적 삼축시험 결과는 0.1 Hz로 수행된 삼축시험 결과보다 평균유효응력의 감소량이 크며, 반복 하중은 해성 점성토의 구조적 약화를 초래하고 초기 거동시 발생하는 간극수압과 밀접하게 관련이 있는 것으로 나타났다. 또한 미소변형률 영역에서 등가 탄성계수는 시험 횟수가 증가함에 따라 점차 감소하며, 감쇠비는 점차 증가하는 것으로 보아 변형계수는 반복 하중으로 인한 전단변형률의 축척에 따른 변형률 의존 거동에 관련하는 것으로 판단된다.

갑상선(甲狀腺) 기능저하증(機能低下症) 환자(患者) 1례(例)에 대(對)한 임상적(臨床的) 고찰(考察)

김용성,김경수,Kim, Yong-Sung,Kim, Kyung-Su 대한한의학방제학회 2001 大韓韓醫學方劑學會誌 Vol.9 No.1

Tyroid gland is the biggist endocrine organ which is located in front of trochea. The role of the thyroid gland in the total body economy comprises the synthesis, storage, and secretion of thyroid hormones, which are necessary to growth, development, and normal bodymetabolism. Hypothyroidism is the state of a dificiency in the secretion of Thyroid hormone. This may result from idiopathic myxedema, or distruction or removal of thyroid, or goiter, or thyroid adenomas. Hypothyroidism corresponds to thick lips, dry skin, puffy eyelids, coars hair, megaloglossia, and pudgy hands etc. On one case of Hypothyroidism who was hospitalized for the chief complaints of fatigue, general weakness, coldness, edema in head, neck site, lumbago. I diagnosed this case as dificiency of Qi and blood(氣血兩虛) or dificiency of warm-Qi in spleen and kidney(脾腎陽虛). And then I used Moxa treatment to increase Qi and blood, and Acupuncture treatment to reduce shoulder and neck pain, lumbago. And Herb-med is used to increase Qi and blood, and recover of general condition. As a result, this patient got better more quickly.