산업단지 및 일반생활 지역의 공기 중 톨루엔에 대한 개인노출 및 생체시료의 상관성 분석

이병준(Byoungjun Lee),허 정(Jung Heo),정다영(Dayoung Jung),김순신(Sunshin Kim),류현수(Hyeon-Su Ryu),최민지(Min-Ji Choi),솨이지엔페이(Jian-Fei Shuai),임성국(Sung-Guk Im),양원호(Wonho Yang) 한국환경보건학회 2017 한국환경보건학회지 Vol.43 No.4

Objectives: The purpose of this study was to assess the correlation relationship between personal exposure and urinary hippuric acid in biological monitoring for airborne toluene in an industrial complex and in general environments. Methods: Personal exposure to toluene and its metabolite, hippuric acid, in urine were simultaneously measured in occupational environments area near an industrial complex and in general environments. The study subjects were divided into three types: 137 workers who use organic solvents in the workplace, 210 residents living near a dyeing industrial complex, and 379 residents living in general environments. The toluene exposures of workers and residents were measured by a passive sampler for four days. The urine of participants was sampled when the passive samplers of personal exposure were collected. Results: The toluene and hippuric acid concentrations of workers were the highest, followed by the concentrations of residents living near a dyeing industrial complex and residents living in general environments. The coefficient of correlation between the concentrations of toluene and hippuric acid among workers was 0.749 (p<0.01) in the workplace. On the contrary, correlations between the concentrations of toluene and hippuric acid among residents living near a dyeing industrial complex and residents living in general environments were all not significant. The relationship between the concentrations of hippuric acid and toluene in three types could be described by the exponential growth model. Conclusions: This study analyzed the relationships between toluene exposure and the concentrations of hippuric acid in urine in high, middle, and low exposure environments, and could be described by the exponential growth model.

열대 지역에서 통일형 초다수성 벼 품종의 생육 및 수량성 비교

이지윤,준현,성환,손영보,송유천,한상익,박동수,권영업,이철원,이종희 忠北大學校 農業科學硏究所 2015 農業科學硏究 Vol.31 No.2

자동측정망 데이터를 이용한 국내 항공기소음 실태 조사

이주엽,전지현,이태강,김선우 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1

Currently domestic criteria for the aircraft noise is being adapted WECPNL(weighted equivalent continuous perceived noise level), while internationally preferred method is L_(dn) which is originated from L_(eq) and can evaluate even environmental noise. WECPNL used in domestic as a evaluation method is only for the aircraft noise. It is, therefore, not adequate for the evaluation of residents' injury, moreover, it is very difficult to measure the aircraft noise with WECPNL due to the complicated calculating procedures as long as automatic measuring system is not used This study aims to propose alternative evaluation method for the aircraft noise. To achieve this purpose, the data measured by automatic measuring system in 5 places among domestic airports from 1998 to 2002 were gathered and calculated with three evaluation method ; WECPNL, L_(eq) and L_(dn) and the results calculated from different methods were compared and analyzed. At the same time, it was investigated problems generated from the actual operating of the automatic measuring system and that remedy was presented.

도심 공원의 음 풍경 디자인을 위한 실험적 연구

이태강,송민정,전지현,장길수 대한건축학회 2005 대한건축학회논문집 Vol.21 No.1

This study is an experimental study to introduce the soundscape design in urban parks Objective 4 urban parks were surveyed And four or three subdivision area in these parks were investigated the sound source frequently to be heard and the degree of satisfaction for visual and auditory atmosphere measuring the sound level in 5 minute subjective response to soundscape for each subdivision area were earned out using 7 scale S D method based on pair of adjectives In order to recognized the effect environment sound (bird Sing, sweet ecological music, and nature sounds)for enriching the present soundscape, this study analyzed the subjective response for soundscape before and after providing environmental sound Result of the evaluation of public perception and their sound were vaned at the each subdivision area, which represented the special characteristics of the urban parks The score for image of the places were always higher than those of the sounds, thus visual Image were affected more positively than auditory image The effect of the environmental sound usually resulted in improvement of the subjective cvaluation at cach subdivision area Factor analyzing of the 25 korean vocabulary for using S D method could be induced the appropriate three factors "impression", "calmness" and "delight" These factors can be used for soundscape design of sound sources and images to provide

소비자의 농산물 표시 이용현황과 개선방향

이계임,최지현,김민정 한국식품유통학회 2004 食品流通硏究 Vol.21 No.4

The purpose of this study is to evaluate current food labeling system based on consumer survey and to suggest policy directions for the future demand. The survey showed that consumers are mostly concerned about country of origin labeling for vegetables, and the place produced and country of origin labeling for fruits. Only 15 percent of consumers have recognized types of organic food labeling and its certifications, impling government's public information are not well conducted. In order to promote understanding and utilization of food labeling, it is necessary to improve the style of labeling such as the size and location based on consumers' need. The basic idea for the improvement of public information for food labeling includes following aspects : consistent public relations for food labeling by news media, providing information related to food labeling through the related web site and hot telephone line, strengthening role and function of volunteer's monitering system.

간흡충증에서 초음파검사의 진단적 가치

이현경,김지용,성낙진,홍성태 동국대학교 경주대학 1996 東國論集 Vol.15 No.-

목적: 간흡충증에서 초음파검사의 진단적 가치를 알아보기 위하여 본 연구를 시행하였다. 대상 및 방법: 1996년 5월 한달 동안 간흡충의 농후유행지인 형산강 유역 포항지역의 436명의 자원자를 대상르로 초음파검사, 피내반응검사, 대변검사를 시행하였다. 이후 대변검사를 기준(gold standard)으로하여 초음파검사의 민감도, 특이도, 양성예측도 및 음성예측도를 알아보았다. 결과: 간내담관의 확장 및 담관주위 에코를 양성 소견으로 하였을 경우 초음파검사의 민감도 65.5%, 특이도는 64.6%, 양성예측도는 38.2%, 음성예측도는 84.3% 이었다. 결론: 초음파검사는 피내반응검사보다 민감하지는 못하나 특이적이었다. 그리고 피내반응검사 양성자에게 초음파 검사를 시행하는 것은 진단기준의 특이도를 높여 주는 효과가 있었다. Objectives: In this study we aimed to evaluate the diagnostic value of sonography on clonorchiasis. Subjectives and Methods: During a month, May 1996 sonographic examination, skin test, and stool examination were performed to 436 volunteers of Pohang which is located along the Hyong-San-Gang river and is one of well known endemic areas. Sensitivity, specificity, positive predictive value(PPV), and negative predictive value(NPV) of sonography were determined while stool examination was assumed as a gold standard. Results: The sensitivity of sonography was 65.5%; specificity, 63.2%; PPV 38.2%; NPV, 84.3% if both intrahepatic duct dilatation and periductal echogenicity were assumed as positive findings. Conclusions: Sonography was less sensitive but more specific than skin test. And sonographic examination perfomed to skin test positive subjects could increase the specificity of diagnostic criteria.

열처리 효과에 따른 PbMoO₄단결정의 전기 전도도와 광 흡수스펙트럼의 변화

이호섭,오인환,이재현,노지현,이동일 國立昌原大學校 基礎科學硏究所 1990 基礎科學硏究所論文集 Vol.2 No.-

PbMoO₄단결정의 전기전도도와 그 열처리 효과를 조사하였다. PbMoO₄단결정의 전기전도도는 저온 영역에서는 산소결함으로 인한 이온 확산이 지배적이었으며, 고온에서는 전자 기여에 의한 효과가 크게 나타났다. 그리고 산소분위기에서 열처리한 시료는 열처리 시간이 증가함에 따라 흡수단 근방의 장파장 영역에서 흡수율이 증가 하였다. The electrical conductivity of PbMoO₄single crystals and it's annealing effect were investigated. From the experiment, we conclude that oxygen vacancies are responsible for electical conductivities in low termperature region. But in high temperature, ac conductivity caused by electronic behavior increases rapidly with temperature increases. The absorption coefficient of PbMoO₄annealed in the oxygen atmosphere increases with time in the long wavelength regions above the absorption edges.

만성 정신분열증 환자의 인지기능에 미치는 Clozapine 효과

이홍식,정미정,김지현 大韓神經精神醫學會 1994 신경정신의학 Vol.33 No.5

Objects : Prior reviews have indicated that antipsychotic drugs may impair planning ability and memory but otherwise may even improve attention and reaction time performance. This study was performed to evaluate the effect of clozapine on cognitive functions and psychopathology in chronic schizophrenic patients. Methods : Neuropsychological tests such as Wisconsin Card Sorting test, Digit Span test and Judgment of Line Orientation test were applied to 21 chronic schizophrenic patients and 15 normal controls. The schizophrenic patients were retested with the same instruments after 3 monthes of treatment period with clozapine. Psychopathology was assessed in the same patients before initiation of clozapine and at 12 weeks using BPRS. Results : Cognitive impairment was found in each measure of executive function, attention, short-term memory and visual perception ability as compared with the normal controls. After 12 weeks of clozapine treatment, signigicant improvement occured in attention, short-term memory and visual perception ability as well as psychotic symptoms including both positive and negative symptoms, but had little effect on executive functions. Conclusion : Short-term treatment with clozapine may possibly improve parts of cognitive functions of chronic schizophrenics, and these effects can contribute to increase capacity for work and social function.

쇠고기 특성에 대한 소비자 평가분석

이계임,최지현 한국농업정책학회, 한국축산경영학회 2000 농업경영정책연구 Vol.27 No.1

Identifying the implicit valuations of beef characteristics in the Korean market has important policy implications for the Korean beef industry. Hedonic price model was applied to estimate beef characteristic values. The beef grading data from Animal Products Grading Service(APGS) were used in the analysis. The results indicate that selected carcass characteristics have significant effects on the price paid for Korean beef carcass. In particular, marbling plays a substantial role in determining the price of beef carcass, which underscores the importance of marbling in the Korean market.

전통장류의 일본수출시장 분석

이계임,최지현 한국농업정책학회, 한국축산경영학회 2003 농업경영정책연구 Vol.30 No.3

This study suggests the export strategies of the Korean traditional soybean paste products(KTSPPs) to Japan. The strategies are introduced by conducting Japanese consumer's preferences survey for the KTSPPs and Japanese soybean paste products market. The result showed that the KTSPPs were highly preferred among Japanese, however, the product differentiation of KTSPPs is very important to enhance the export due to the similar Korean products marketed in Japan. to promote the export of KTSPPs to Japan, advertizing and promotion of KTSPPs like Kimchi and Ginseng should be enforced. Expanding the loan support for the package design as well as packing facilities to the local manufacturers is needed to promote the export.