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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>
김도경,박혜진 경희대학교 디자인연구원 2001 예술· 디자인학연구 Vol.4 No.1
The purpose of this study was to suggest the more efficient system for management in Children's Park through the investigation of the managemental condition. Research sites for managemental system were 3 autonomous districts (Songpa-gu, Nowon-gu, Yangcheon-gu) that have different management system. The summary of conclusions is as follows : 1) There are "The Children's Park management rule" about the Standing rules of Children's Park management in the autonomous district law. 2) Songpa-gu has done the consignment management system to all Children's Parks and Yangcheon-gu has done the direct management system. However, Nowon-gu has done both management systems. 3) In management way, they are frequently going on a tour of inspection to fix and keep security and record their day works. However, Songpa-gu has only the different form that record their works at each Children's Parks. There are some improvements for efficient management with results. This research suggest that : 1) Detail guides for safety management should be made in The Children's Park management rule. 2) It is required for autonomous district to employ one or more managers of each Children's Parks for efficient management. Although, it is quite difficult for a autonomous district to hire additional employee. If they use the residents living near Children's Parks, I could be one of good alternatives. 3) In addition to record the results of dairy works is strongly recommended by usage of computer net-works like Songpa-gu. It is helpful many Children's Parks for few managers to manage.
私立大學生의 成長發育 및 營養狀態에 關한 硏究 : 中學校 入試有無過程을 通한 比較
朴淳永,具燾書,朴良元,金振浩,南炳執,朴昌植,朴喆斌 慶熙大學校 1980 論文集 Vol.10 No.-
In order to ascertain any possible changes in the physical and the nutritional status of Korean high school students before and after the abolishment of college entrance examination system, an intensive survey was conducted on the physical conditions of the incoming freshmen students (9532 males and 3428 females) of Kyung Hee University from 1972 to 1980. The finding are as below. 1. Physical growth conditions In each of the average physical dimensions of body height, body weight, chest girth and sitting height, a remarkable improvement was recorded for all age groups after the matriculation was abolished. 2. Physical and nutritional indices Relative body weight showed constant values of 35.0 in male and 32.0 in female. Relative chest girth showed the normal chest girth style in all age groups of both sexes. Relative sitting height showed a constant value of 54 for both sexes. The values of vervaeck index of th nutritional status were shown to be between 86-87 in male and 83-94 in female, Pelidisi index 91 and 92-93, Rohrer index of physical status 121-125 and 130-132, and Kaup index 206-211 and 202-210, respectively.
내열성 Polyesterimide의 합성 및 물성 연구
박이순,하기룡,박진국,도정희 경북대학교 산업기술연구소 1992 産業技術硏究誌 Vol.20 No.-
Pyromellitic dianhydride(PDA)와 4-aminophenol(AMP)의 이미드화 반응을 통하여 양말단에 phenolic OH기를 갖는 bisphenolbisimide형 단량체를 합성하였다. 합성된 bisphenolbisimide 단량체를 terephthaloyl chloride 혹은 aliphatic acid dichloride와 반응하여 polyesterimide들을 얻었다. 종합반응은 용액중합 및 계면중합 반응을 사용하였으며 용액중합 반응이 수율을 향상시킴을 알았다, 생성된 polyesterimide들은 FT-IR, NMR을 사용하여 구조를 확인하였으며 DSC 및 TGA로 역적 성질을 측정한 결과 Tm=401℃, 최대분해온도가 500℃ 이상의 고내열성을 나타냄을 확인하였다. Bisphenolbisimide type monomer with phenolic OH group at both ends were synthesized through the imidzation reaction of pyromellitic dianhydride(PDA) and 4-aminophenol(AMP). Bisphenolbisimide monomer was reacted with terephthaloyl chloride of aliphatic acid dichlorides to give polyesterimides. Polymerization reactions were conducted by solution and interfacial polymerization method, the former with higher polymer yield. The structure of polyesterimides were characterized by FT-IR and NMR, Polyesterimides showed high termal stability with Tm=401℃ and maximum decompositon temperature of over 500℃.
첨가질량이 존재하는 변단면 4변고정 적층복합판으 진동해석
박제선,김경진,원치문,심도식 江原大學校 産業技術硏究所 1995 産業技術硏究 Vol.15 No.-
A method of calculating the natural frequency corresponding to the first mode of vibration of beams and tower structures, with irregular cross-sections and with arbitrary boundary conditions was developed and reported by D. H. Kim in 1974. This method has been developed for two-dimensional problems including the laminated composite plates and was proved to be very effective for the plates with arbitrary boundary conditions and irregular sections. In this paper, the result of application of this method to the clamped composite plates with non-uniform cross-section and with attached point mass/masses is presented.
박현서,정진도 공주대학교 자원재활용 신소재 연구센터 2002 센터사업 성과집 Vol.- No.1
The disposal of municipal solid waste is a serious problem in Korea and throughout the world General diposal methods-incineration or dumping in landfills-creat more problems than they could be solved. Incineration generates toxic ashes and gase, and landfills will soon reach capacity and do not gurarantee the safe containment of harmful substances. Recently the fly ash has been classified as hazardous waste and diposal is no longer allowed unless it is treated by new law, the bottom ash also has become a very controversial issue due to their harmfulness. Sampling and analysis of ash at the three MSW incinerators was performed to determine if beneficial use could be made of this material. According to the results of analysis with HELOS, Atomic Absorption Spectrophotometry, and ICP-MS, bottom ashes included only 8.8% of PM-10 and Fly ashes, on the other hand, included approximately 50% which represented a very dangerous level. Among 17 heavy metals, tested Pb was detected to the extent harmful to human body, while the rest were discovered relatively to be lower level compared to Po.