U-City 적용 기술의 경제성 분석 방법에 관한 연구

김호기(Kim, Ho-Kee),김지현(Kim, Ji-Hyun),곽윤철(Kwak, Yun-Chul),정창무(Jung, Chang-Mu) 대한국토·도시계획학회 2012 國土計劃 Vol.47 No.2

This research is follow-up study of Kim Ji-Hyun?Kim Ho-Kee?Jung Chang-Mu(2010) and Kim Ji-Hyun?Kim Ho-Kee(2010). The fields of technology for applying to U-City are extensive and each type of technology within the sector is diverse. Such being the case, the purpose of this research is to suggest a process(or method) for analyzing economic efficiency of U-City technologies. The process is composed of few works that technology classification, deduction of assessment items, making questionnaire, survey and analysis. By using conjoint analysis, we can calculate few results like values of each technology, marginal rate of substitution between assessment items. Those values are very useful to analysis economic efficiency of U-City technologies. This research has its meaning as attempt to suggest methodology for creating a standard of judgement that can be used to choose more efficient technologies.

건축물 고형시료 중 석면 분석을 위한 방해 물질 제거방법에 대한 연구

김윤재,임지현,장봉기 순천향대학교 기초과학연구소 2021 순천향자연과학연구 논문집 Vol.27 No.1.2

In this study the following pretreatment methods are proposed using solid samples of buildings : furnace ashing methods according to the existing waste process, acid treatment after furnace ashing, acid treatment using graphite block acid circulation, a new method of attempting. This study propose a method for pretreatment of solid samples in buildings containing asbestos with a comparison of the asbestos analysis obstruction removal rates according to the above mentioned methods. The materials used in this study are 48 slates of 3 types and 48 textures of 3 types, total 96 samples which are solid samples in buildings. Pretreatment and acid treatment methods were classified in four ways: Electric high temperature furnace ashing methods according to the existing waste process and acid treatment with HCl(1+3)(Group A), Electric high temperature furnace ashing methods and acid treatment with aqua regia(HCl 3 : HNO3 1)(Group B), acid treatment with aqua regia(Group C) using graphite block acid circulation, a new method of attempting and acid treatment with inverse aqua regia(Group D). The removal rate of furnace ashing from slate samples in A and B treatment groups was 13.91%, and the removal rate of furnace ashing from texture samples in A and B treatment groups was 9.21%, so the removal rate of furnace ashing from slate samples was significantly higher than texture samples(p<0.001). The removal rate of asbestos analysis interfering substances from slate samples and texture samples in C treatment group with acid treatment with aqua regia using graphite block acid circulation were 30.50% and 30.58%, respectively. So in both slates and texture samples, the removal rate of asbestos analysis interfering substances from the slates and texture samples of A, B, and D treatment groups was significantly higher(p<0.001). The newly proposed acid treatment with aqua regia using graphite block acid circulation method in this study significantly eliminated more acid solubility material and asbestos analysis interfering substances than electric high temperature furnace ashing methods according to the existing waste process and acid treatment with HCl(1+3), and this method does not go through the process with high temperature furnace ashing, it is believed that asbestos analysis can be made easier by preventing changes in the characteristics of asbestos and the use of graphite block acid collection devices when acid treatment of solid samples in buildings containing large amounts of asbestos analysis interfering substances can be more effective than conventional methods.

방광 크롬친화세포종과 동반된 배뇨후 벼락두통

하윤석,강성진,허소영,이지현,김민정,김종국,김광수 고신대학교 의과대학 2009 고신대학교 의과대학 학술지 Vol.24 No.1

Thunderclap headache is a hyperacute, severe headache that is so named because the pain strikes suddenly and severely, and is sometimes a sign of a medical emergency. We report a case of pheochromocytoma in the urinary bladder in a 48-year-old woman who presented with recurrent thunderclap headache after voiding and exercise. So we think thunderclap headache during or immediately after micturition may be an important diagnostic clue of bladder pheochromocytoma.

국내 의학용 스마트폰 앱의 분류 및 분석

신지윤, 김우현, 이태수 충북대학교 의과대학 충북대학교 의학연구소 2011 忠北醫大學術誌 Vol.21 No.2

-본문참고-

Roxythromycin-tylosin-furaltadone 합제의 닭 유래 세균에 대한 시험관내 항균효과

김지영,채미경,윤효인,서상희,박배근,김현수,전무형 충남대학교 수의과대학 동물의과학연구소 2003 動物醫科學硏究誌 Vol.11 No.-

In vitro antimicrobial susceptibility of roxythromycin (Rx), tylosin (Tyl), erythromycin (EM) and furaltadone (Fur) was studied, either by the single type or the combinated type of Rx-Tyl-Fur (RTF) against E. co1i (30 strains), Staph. aureus (20 strains) and Mycoplasma gallisepticum (5 strains) that are the major pathogens in poultry farm. The paper disk diffusion and MIC tests were applied. In screening test by paper disk diffusion method, the single types of antibiotics showed the sensitivity against 55 strains of bacteria in order of Fur, EM, Rx and Tyl. The combinated RTF showed the higher rate of sensitivity (80∼83.3% at 64㎍/disk, 60-75% at 32㎍/disk) and wider range of growth inhibiting zone (19.6±3.7-24.8±4.7mm) than those of the single drugs. In MIC test, the sensitivity against the 55 strains appeared in order of Fur. EM, Rx and Tyl as similar to those of paper disk diffusion method. The MIC ranges of RTF were 0.125∼16㎍/ml for E. coli, 0.25∼16㎍/ml for Staph. aureus and 1-8㎍/ml for Myco. gallisepticum, showing evidently lower than those of the single types. The MIC_(50) and MIC_(90) of RTF were estimated l∼4㎍/ml and 8∼16㎍/ml, respectively, and remarkably lower than those of the single drugs.

새로운 백금착체인 tetrachloro [bis(2-chloroethyl)ethylenediamine-N,N']platinum(IV)과 cisplatin이 마우스의 면역반응에 미치는 영향

표명윤,유경미,최지선,오현정 숙명여자대학교 약학연구소 1993 약학논문집-숙명여자대학교 Vol.9 No.-

Effects of a new platinum complex, tetrachloro-[bis(2-chloroethyl) ethylenediamine-N,N']platinum(IV)[PtCl₄-2(CEen)] and cisplatin on the immune response were investigated. Male ICR mice were treated at the respective LD50(20% or 60% LD50) of cisplatin and PtCl₄-2(CEen). The results were as following : LD50 of PtCl₄-2(CEen) for male ICR mouse was 122.5mg/kg(i.p.) and higher than cisplatin(16.3mg/kg, i.p.). Body-, spleen-, thymus-, liver-weight, number of WBC and RBC were reduced dependently on the dose and day of administeration of cisplatin and PtCl₄-2(CEen). But these toxicities produced by PtC^-^CEen) appeared to be relatively less and to improve faster than by cisplatin. The titers of hemagglutinin and hemolysin to SRBC in mice received cisplatin and PtCl₄-2(CEen) were decreased significantly and independently on the day of antigen injection. Cisplatin and PtCl₄-2(CEen) stimulated significantly contact hypersensitivity to DNFB when administered prior to sensitization(DNFB), but suppressed slightly when administered after sensitization.

혐오자극과 모델링 및 언어적 지시가 발달지체 아동의 상동행동에 미치는 효과 : 사례연구

한현민,함소희,김윤선,지지영,홍희영 대진대학교 교육연구소 2000 교육연구 Vol.2 No.1

The experiment was undertaken to determine the combined effects of aversive, modeling, and verbal instruction on the self-stimulatory stereotyped benavior exhibited by a three-year two-month old with developmental delay, The behavioral interventions were consisted of lemon juice(aversive), behavioral rehearsal(moleling), verbal instruction(prompting), and defferential reinforcement of incompatible behavior (DRI), and continued over 73 sessions. The data gathered across multitreatments design (A-BCD-A-BD-DE) were visually analyzed. The results revealed that all the treatments reduced the occurrences of stereotyped behavior, the significant differences among any interventions were not found, and more importantly, the behavior effects were maintained.

SiCOI용 3C-SiC기판의 직접접합 특성

정연식,류지구,김규현,정귀상 경북대학교 센서기술연구소 2002 센서技術學術大會論文集 Vol.13 No.1

구치의 1급, 2급 와동에 은 아말감, 구치용 복합레진, 복합레진 인레이로 수복시 치아의 파절저항성

안연실,김미자,이광원,손호현 全北大學校 齒醫學硏究所 1991 전북치대논문집 Vol.9 No.1

The purpose of this study was to evaluate the fracture resistance of the marginal ridge of posterior teeth with class Ⅰ & Ⅱ silver amalgam, posterior composite, and composite resin inlay. The seventy-two extracted caries free human upper premolars were divided into six groups. Class Ⅰ and Class Ⅱ cavities were prepared and filled with amalgam, light curing composite resin, and resin inlay. Fracture strength was measured at the marginal ridge with "Instron". The results were as follows ; 1. Class Ⅰ restorations were stronger than Class Ⅱ in amalgam and composite resin filled group(P<0.05). There was no statistically significant difference in strength between Class Ⅰ resin inlay and Class Ⅰ resin inlay. 2. In the Class Ⅰ and the Class Ⅱ restorations, the best fracture resistance obtained in resin inlay, followed by composite resin, amalgam(P<0.05). In the Class Ⅰ restorations, result was the same but had no significant difference. 3. Class Ⅰ composite resin and Class Ⅰ resin inlay were stronger than Class Ⅱ amalgam(P<0.05). 4. In the Class Ⅰ restorations, when the marginal ridge was fractured, only enamel or enamel/material were involved. In the Class Ⅱ composite resin and Class Ⅱ resin inlay, enamel/material or only material were involved. In the Class Ⅱ amalgam, only material was fracture.

분화중인 흰쥐 콩팥의 요세관에서 nNOS의 발현

송지현,류시윤,김진,정주영 韓國電子顯微鏡學會 2008 Applied microscopy Vol.38 No.2

Nitric oxide는 콩팥에서 혈류의 조절, 사구체 혈액역동학 및 요세관의 운반에 중요한 역할을 하는 인자로서 최근 세포의 주기조절, 유사분열에도 관여하는 것으로 알려져 있다. 최근 연구결과에 의하면 발생중인 콩팥에서의 nNOS의 발현은 성체와는 다른 것으로 알려져 있으나, 발생중인 콩팥에서의 발현 양상 및 발현시기 등에 대해서 알려진 바 없다. 따라서 본 연구에서는 발생중인 콩팥을 이용하여 분화중인 요세관에서 nNOS의 발현양상을 관찰하고자 하였다. 성체에서 nNOS의 면역반응성은 사구체 보우만주머니의 벽측상피와 치밀반, 내림가는부분 및 수질집합관에 발현되었다. 발생중인 콩팥에서는 임신 15일에 처음 발현하기 시작하였으며, 그 부위는 원위세관의 굵은오름부분이었다. 임신 20일에서 출산후 14일까지 새로이 형성되는 요세관의 굵은오름부분에서 관찰되었으나, 분화를 마친 요세관에서는 그 발현 양상이 감소하였다. 출생후 21일경에는 최종적으로 치밀반에만 국한되어 발현되었다. 속수질에서는 내림가는 부분과 속수질 집합관에서 발현되었으며 그 양상은 수질 중간부위에서 강하게 발현되었으며 시작부위와 말단부위에서는 약하게 발현되었다. 이상의 결과로 보아 굵은오름부분에서의 nNOS의 발현은 요세관의 분화정도와 일치하며 특히 그 발현양상이 분화가 활발한 시기에 강하게 발현되고 분화가 저하된 후에는 발현이 감소하는 것으로 보아 발생중인 콩팥의 성장에 중요한 역할을 할 것으로 생각된다. Nitric oxide (NO) is an important regulator of renal blood flow, glomerular hemodynamics, and tubule transport processes in the kidney. There is also evidence that NO is involved in cell cycle regulation and mitotic division. During development the nNOS expression pattern differs from that observed in adult animals. However, little is known about temporal and spatial patterns of nNOS expression in the developing kidney. The purpose of this study was to establish the time of expression and the distribution of nNOS in the developing rat kidney. Kidneys from 14-, 16-, 17-, 18-, and 20-day-old fetuses, 1-, 4-, 7-, 14-, and 21-day-old pups, and adult animals were preserved and processed for immunohistochemistry. In the adult kidney, nNOS was detected in the parietal epithelium of Bowman’s capsule, macula densa, descending thin limb and inner medullary collecting duct. nNOS immunoreactivity appeared first in the distal tubule anlage at 15 days of gestation, and in all epithelial cells of developing thick ascending limbs (TAL) as well as macula densa of 17- and 18-day-old fetuses. From 20 days of gestation to 14 days after birth, nNOS was expressed in the newly formed cortical TAL, which are located in the medullary ray, whereas in mature TAL of juxtamedullary nephrons, nNOS immunolabeling gradually decreased in intensity and became restricted to the macula densa. In inner medullary collecting ducts, nNOS immunoreactivity appeared first at 7 days after birth in the papillary tip and gradually ascended to the border between outer and inner medulla. In the descending thin limb and parietal epithelium of Bowman’s capsule, weak nNOS immunoreactivity was observed at 14 days after birth and labeling gradually increased to adult levels at 21 days after birth. These results suggest that differential expression of nNOS in the developing kidney is an important physiological regulator of renal function during kidney maturation.