Time-Related Changes in Detrusor Overactivity in Awake Rats with Spinal Cord Injury Observed by Simultaneous Registrations of Intravesical and Intraabdominal Pressures

Jin, Long-Hu,Shin, Hwa-Yoan,Yoon, Seung-Hwan,Seong, Do-Hwan,Park, Chang-Shin,Lee, Tack,Yoon, Sang-Min Korean Continence Society 2011 International Neurourology Journal Vol.15 No.1

<P><B>Purpose</B></P><P>To compare the physical characteristics of detrusor overactivity (DO) induced by intravesical infusion of saline in awake, sham rats and rats with chronic spinal cord injury (SCI), by simultaneous registrations of intravesical and intraabdominal pressures.</P><P><B>Methods</B></P><P>Male Sprague-Dawley rats, normal or with a spinal vascular clip at the level of Th9, were investigated cystometrically 1 and 4 weeks after SCI. Intravesical pressure (IVP) and intraabdominal pressure (IAP) were recorded simultaneously to evaluate true DO. During the filling phase, the event of IVP rises, defined as increments that exceeded 2 cmH<SUB>2</SUB>O from baseline, were determined as DO according to the absence of simultaneous changes in IAP.</P><P><B>Results</B></P><P>All SCI rats exhibited DO during the filling phase, which was not shown in sham rats. The frequency and pressure of DO had a tendency to decrease with time. The DO frequency of SCI rats after 4 weeks (0.9±0.2 min<SUP>-1</SUP>) was decreased compared with that after 1 week (2.1±0.4 min<SUP>-1</SUP>; P<0.05). The DO pressure of SCI rats after 4 weeks (8.4±1.9 cmH<SUB>2</SUB>O) was decreased compared with that after 1 week (11.6±2.9 cmH<SUB>2</SUB>O; P>0.05).</P><P><B>Conclusions</B></P><P>Cystometric studies in awake male SCI rats showed some significant changes in bladder function after SCI. All SCI rats exhibited DO during the filling phase, and showed different physical characteristics of DO over the course of time. The neurological basis of these time-related changes remains poorly understood, but may provide important prognostic information about long-term urological management in SCI patients.</P>

위치검출기가 없는 브러쉬리스 직류전동기의 자기제어 시스템

尹炳道,金倫鎬,金一煥,金石根 중앙대학교 기술과학연구소 1990 기술과학연구소 논문집 Vol.20 No.-

The microcomputer control of a brushless do motor without a shaft position sensor is implemented. The motor produces a trapezoidal back EMF voltage. The control system is operated by two phase feeding. In the two phase feeding mode, it is possible to obtain the rotor position data from the terminal votage which is not conducting. Microcomputer reads the positon data from the terminal voltage and output the data to the inverter control module. Experimental results show that this system is application to the low power drives of less than one hp for low performance such as fan, pumps and fome appliances.

GIS을 활용한 인공어초의 적지 선정에 관한 연구

김범규,황도현,윤홍주,서원찬,Kim, Bum-Kyu,Hwang, Do-Hyun,Yoon, Hong-Joo,Seo, Won-Chan 한국전자통신학회 2015 한국전자통신학회 논문지 Vol.10 No.5

This study carried out in order to investigate the most basic elements of suitability selection methods for composition of artificial reef. Acquired data by in-situ measurements and satellite remote sensing analysed in applying GIS. To identify the characteristic of marine environment around the West Sea, the South Sea and the East Sea of Korea, physical conditions-seabed sediment and depth, biological conditions-chlorophyll-${\alpha}$, chemical conditions-Sea Surface Temperature(SST) and DO were used. Suitable sites for artificial reef are selected Taean Peninsula, Geoje, Wando, Pohang, Seocheon, etc. From now on, it will be helpful to effectively utilize artificial reef as well as construct synthetic database. It is also expected to use basic data for artificial reef facilities management. 본 논문는 인공어초 조성의 가장 기본적인 요소인 적지선정을 위한 방법에 대해 고찰하였다. 현장관측과 위성 원격탐사(Remote Sensing, RS)로 획득한 자료를 지리정보시스템(Geographic Information System, GIS)을 활용하여 분석하였다. 한반도 주변해역의 해양환경 특성을 파악하기 위해 물리적 조건-해저저질, 수심, 생물적 조건-클로로필-${\alpha}$, 화학적 조건-해수온, DO를 활용하였다. 인공어초 적지로는 태안반도, 거제, 완도, 포항, 서천 등이 나타났다. 향후 본 연구는 인공어초 설치의 효율적인 활용뿐만 아니라 종합적인 데이터베이스의 구축에 도움을 줄 수 있을 것이다. 또한 인공어초 시설관리의 기초자료로 활용할 수 있을 것으로 기대된다.

Algal bioassay 에 의한 조류생장 제한영양염류 결정

오희목(Hee Mock Oh),이석준(Seog June Lee),김성빈(Seong Bin Kim),박미경(Mi Kyung Park),윤병대(Byung Dae Yoon),김도한(Do Han Kim) 한국하천호수학회 1998 생태와 환경 Vol.31 No.2

Determination of Limiting Nutrient for Algal Growth by Algal Bioassay. Oh, Hee-Mock, Seog June Lee, Seong-Bin Kim, Mi- Kyung Park, Byung-Dae Yoon and Do-Han Kim (Environmental Microbiology Research Unit, Korea Research Institute of Bioscience and Biotechnology, Taejon 305-333, Korea and Water Resources Research Institute, Korea Water Resources Corporation, Taejon 305-390, Korea) Water quaiity and algal growth potential (AGP) using Microcystis aeruginosa were investigated from April to September 1997 in Daechung Reservoir. Secchi disk transparency was 1.1 m in August. Chlorophyll-a concentrations were higher than 10㎍/l at all samples. Total phosphorus concentration was in a range of 0.020∼0.027mg/l which is at the approximate value of 0.03 mg/l, the general critical level of eutrophication. These results indicate that Daechung Reservoir is in an eutrophic state except some temporary times and restricted sites. Phosphorus uptake rate of M. aeruginosa was higher in the water from the epilimnion than in the hypolimnion and also higher under light condition than under dark condition. Therefore, phosphorus uptake rate appears to depend on cellular phosphorous content and light condition, a meaning of endergonic process. Phosphorus was the most frequently limiting nutrient: phosphorus was limiting algal gowth in April and May, nitrogen, phosphorus and trace elements were the limiting factors for algae in August, and trace elements in September. If a fast growing alga, M, aeruginosa, is used as a test organism for assaying AGP, in vivo fluorescence instead of dry weight can be measured for algal biomass and incubation period can be reduced from traditional 14 days to 7 days.

저압 MOCVD반응기에서 ZnO박막의 화학증착에 대한 CFD해석

윤도영 광운대학교 신기술연구소 1999 신기술연구소논문집 Vol.28 No.-

본 연구에서는 저압 유기금속 화학증착 반응기내에서 DEZ(diethyl zinc)의 증착반응 및 유동현상을 POLYFLOW를 이용한 전산유체역학(CFD)의 해석결과로부터 산출하여 최적의 산화아연박막의 증착조건을 도출하였다. 전제방출디스플레이(FED)로 활용가능한 산화아연박막의 제조공정에서 반응물로는 DEZ, 산화제와 운반가스로는 산소가스와 질소가 각각 적용되었다. 유한요소법에 기초한 POLYFLOW는 화학증착반응기내에서 화학증기와 같은 열유체의 이동현상을 해석하는데 있어 효과적인 것으로 나타났다. 특히 계산결과에 의하면 증착속도에 대하여 기판의 온도영향이 주요한 변수로 작용하고 있었으며, 최적의 증착조건으로부터 비교적 균일한 표면적 두께를 조절할 수 있을 것으로 기대된다. The present study investigates the optimal condition for the deposition of ZnO:Zn thin film using POLYFLOW to solve the deposition reaction and flow phenomenon of diethyl zinc vapor in a M0CVD (Metal Organic Chemical Vapor Deposition) reactor. The manufacturing process of zinc oxide thin film for the use of Field Emission Display involves diethyl zinc(DEZ) as a reactant, oxygen gas as an oxygenic agent and nitrogen gas as a carrier gas. POLYFLOW which is a commercial simulator for Computational Fluid Dynamics based on finite element method was very effective to analyze the transport phenomena of thermal fluids like chemical vapors. The computational results show that the temperature plays an important role in the deposition rate. Therefore it is expected that the optimal condition of temperature controls the uniformity of deposition thickness.

美術관 建築計劃의 基本理念에 關한 考찰

尹道根 弘益大學校 1971 弘大論叢 Vol.3 No.-

There has been striking tendencies in most of the developing countries that historic traditions were consciously appreared to be preserved since the early Twentieth Century. Fine Arts Museum is aimed to collect, evaluate and exhibit all the concerned materials in such a way that it could culturally contribute to the public, to the extent possible. In terms of function & spatial composition of the museum, every work of arts could properly be displayed into the space where a collective art of spatial architecture is made possible. Many architects and planners have already studied future development of planning approaches for the fine arts museum, and yet urgent need of further analysis and specific research studies is revealed in a series of problems, that could give an inevitable result for particular solution. To this respect, the study report will mainly cover the following aspects; -Understanding the nature and structure of physical composition of recently built museums abroad since last decade, -Developing programmes and planning requirement from the result of case studies for Museums prepared by the writer on the spot during planning research work in the Europe, -Defining goals and objectives of desired future patterns in museum construction and implementing these objectives in plans and proposals.

現代建築의 抽象과 虛構的 觀點에서 본 新構成主義的 傾向에 關한 硏究

尹道根,金元鉀 弘益大學校 1989 弘大論叢 Vol.21 No.2

Current issues on architectural isms after Modernism is being confused by many other synonyms in very short period. But the focus of that words is converged into Modernism. No matter how some critic define it variously as late, post, second, etc, its starting point is from Modernism. There are two trends in current architecture which, through opposing, have both still come out of the Modern tradition: a Neo-Constructivism, which uses the stylistic methods of Modernism to free the Modern from its naive dependency on technique and its straight puritanism; and a new Historicism which, as the deflected response to the language of pre-Modernism, achieves the same result, the elevation of construction to a narrative medium. Because these two stances start from a common basis, they are capable of synthesis, and it can be called as a narrative architecture. This Study is aimed at the analysis of the evolution of Neo-Constructivism on the basis of abstraction, macihne aesthetic, and fictional plot.

퇴행성 요추질환에서 GRAF 연성고정장치의 치료효과

하윤,김영수,윤도흠,진동규,박희완 대한신경외과학회 1998 Journal of Korean neurosurgical society Vol.27 No.10

日帝의 住居政策과 그 遺産에 關한 硏究

尹道根,金蘭基 弘益大學校 1987 弘大論叢 Vol.19 No.2

This study is the research of Housing policy and those inheritances during colonial epoch of Japan. From the Han-il hapbang(Korea-Japan Union) in 1910 to 3. 1. Movement in 1919. Japan government reigned in Moodantongchi(the Military Government), but after that, they changed the governmental policy from the Moodantougchi to Moonhwatongchi(the Cultural Government) in order to appease the independent movement. At this point, this study examines the reality of Moonhwajueu. (Culturalism) advocated by Japan, and housing policy and residential condition. Therefore this. study processes the following contents. 1. In order to find out the residential condition under Colonial Japan, this research the appearence of Middle Class House and examine the Western type and Japanese type house. 2. This research the character of Moonhwatongchi, Moonhwajuteak(Cultural Housing), and Housing policy. 3. The process of "Juteak Gaelyang Woondong(Housing Improvement Movement),. problems of the architects in that time. 4. The establishment of Juteakyoungdan(Housing Corporation) an those housing. 5. The Improvement Korean Style Housing.

17世紀 프랑스 建築의 新ㆍ舊論爭과 그 影響에 關한 硏究

尹道根,申在淳 弘益大學校 1988 弘大論叢 Vol.20 No.2

Today, we realize that modern buildings and post-modern buildings are rely heavily on an insistent use of elementary geometrial shapes. Some, like the square, are easy to draw and others, like the circle and the triangle, or solids based on them like the cylinder, are rather more awkward to manage. Yet the worst contemporary architects and industrial designers will use them. The idea has got about that elementary geometrical shapes are in some way better than more complicated shapes. Generally Speaking, we owe this tendency to Neo-Classical architect. But it goes back much further. The objectives of this report are to analize the process that have been developed since seventeenth century, and this tendency can not equalize with original conception of Platonism.