가축배설물의 재생자원이용에 대한 경종농가의 선호분석 : 선택형 컨조인트모형을 이용하여

신용광,佐佐木 市夫,곽영태 한국농업정책학회, 한국축산경영학회 2000 농업경영정책연구 Vol.27 No.1

This paper estimates crop farmer's preference on renewable resource using a choice-based conjoint model. For the data, 2,074 questionnaires were collected from 89 crop farmers in the Otofuke, Japan in 1999. From the empirical results, this study examines several attributes and levels of renewable resource influencing crop farmer's utilities and simulates the market share of the renewable resource.

美國의 邊境精神과 韓國의 새마을運動精神과의 比較硏究

郭東憲,李瑛雨,李廷彬,申址湜 경북대학교 1988 새마을 硏究論叢 Vol.9 No.-

도시근린공원의 이미지와 이용만족도에 관한 연구

하영철,정수일,곽윤근,신현익,하헌정,김익환,김석만 金烏工科大學校 1999 論文集 Vol.20 No.-

This paper presents the future direction of the development and maintenance of the urban park of the Kumi city. The direction was obtained by analyzing the evaluation results on the satisfaction level of park use and the park image of the park users. The analysis results are as follows. 1) It turns out that the rest and accommodation facilities are the major facilities that uplifts the total image of the park. 2) Among the park images, the image on the pleasantness was the major image, related with the satisfaction on the park equipments. 3) The social class, who gave a bad score on the above equipments and images, is a low-aged class, who is a white class with high income as well. Therefore, it is suggested that the park maintenance plan, with emphasis on the class, is an important task.

반코마이신 내성 장내구균 분리 환자에서 황색포도알균의 내성

김동욱,신선혜,김혜진,류선,이선희,장철훈,김영대,곽임수 대한감염학회 2004 감염과 화학요법 Vol.36 No.1

목적 : Vancomycin-resistant enterococci (VRE)로부터 S. aureus로의 vacomycin 내성 유전자의 전파는 오래전부터 예견되어져 왔으며 큰 걱정거리로 남아있다. 최근에 vanA 유전자를 가지고 있는 vancomycin-resistant S. aureus 2주가 미국에서 분리되었다. 이 연구의 목적은 VRE를 보균하고 있는 환자들에서 S. aureus 보균양상과 항균제 내성을 알아보는데 그 목적이 있다. 재료 및 방법 : 2001년 1월부터 2001년 12월까지 부산대학교병원에 입원하였던 환자들 중 임상검체에서 VRE가 분리된 환자 7명과 2001년 9월부터 12월까지 외과 중 환자실에 입원하였던 환자들 중 VRE 감시배양을 시행하였던 20명의 환자들을 대상으로 하였다. 환자들은 전비공, 액와부, 회음부, 직장에서 매주 면봉으로 검체를 채취하였다. 선별배지에서 검체를 배양하여 S. aureus를 분리하였고 원판 확산법을 이용하여 methicillin 감수성을 측정하였다. Broth microdilution 법으로 vancomycin MIC를 측정하였다. 결과 : 총 27명에서 73회의 방문과 292회의 배양이 시행되었으며 총 67주의 S. aureus가 분리되었다. 이중 64주(95.5%)가 methicillin 내성이었다. 전비공 MRSA 보균율은 VRE를 보균하고 있었던 환자는 19명 중 11명(58%)에서, VRE를 보균하지 않았던 환자는 8명 중 3명(37.5%)으로 VRE 보균자에서 보균율이 더 높았다. 총 64주의 MRSA의 vancomycin MIC의 분포는 0.5-2㎍/mL였으며 2㎍/mL를 초과하는 균주는 발견되지 않았다. 64주 중 vancomycin MIC가 1㎍/mL인 균주가 54주(84.4%)로 가장 많았으며 2㎍/mL 6주(9.4%), 0.5㎍/mL 4주(6.3%)의 순이었다. 결론 : VRE 환자에서 S. aureus의 보균율은 비보균자 보다 높았으며 분리된 균주들은 대부분 MRSA였다. VRSA 균주는 발견되지 않았다. Background : The transfer of vancomycin resistance from vancomycin-resistant enterococci (VRE) to Staphylococcus aureus has been predicted. The purpose of this study is to determine the prevalence and antibiotics resistance of S. aureus among patients colonized with VRE. Methods : Between January 2001 and December 2001, a prospective study was performed at Pusan National University Hospital on 27 patients. Surveillance swabs from nasal cavity, axilla, perineum, and rectum were obtained at weekly intervals. Methicillin susceptability of S. aureus was determined by oxacillin disk diffusion test and minimum inhibitory concentration (MIC) for vancomycin by microdilution broth test. Results : Total of 292 swab cultures were performed and 67 S. aureus isolates were collected. 64 isolates (95.5%) were resistant to methicillin. The prevalence of nasal MRSA carrier in 19 patients colonized with VRE was higher than that in 8 patients not colonized with VRE (58% vs. 37.5%). In 64 MRSA isolates, MIC (㎍/mL) for vancomycin ranged from 0.5 to 2. No isolates with MIC >2 ㎍/mL were observed. MIC of 1 ㎍/mL was shown (observed) in 54 isolates, 2 ㎍/mL in 6 isolates, and 0.5 ㎍/mL in 4 isolates. Conclusion : The prevalence of S. aureus with colonization of VRE is higher than that without colonization of VRE. Most of S. aureus isolates were resistant to methicillin. VRSA isolates were not observed.

Acylthiocholine의 합성

정두희,이지현,박유미,정대일,곽문정,신영주 東亞大學校附設基礎科學硏究所 1998 基礎科學硏究論文集 Vol.15 No.2

Choline esters that are used with substrate of EE-AChE-catalyzed hydrolyses were synthesized by two methods. 2-Chloroethyl thiohexanoate 4a, 2-chloroethyl thioheptanoate 4c, and 2-chloroethyl thiooctanoate 4b were synthesized by treatment of hexanoyl chloride 3a, heptanoyl chloride 3c, and octanoyl chloride 3b with ethylene sulfide 2. Hexanoylthiocholine 6a and octanoylthiocholine 6b were synthesized by using 4a and 4b with trimethylamine 5. Secondly after reaction ethylene sulfide 2 with dimethyl amine 7 and acylation by acid anhydride 8, heptanoylthiocholine 6c, decanoylthiocholine 6d were synthesized by treatment of methyl iodide.

딥러닝과 영상처리 기법을 사용한 통합 지능형 주차 관제 시스템 개발

이영지(Young-Ji Lee),이희열(Hee-Yeol Lee),고태영(Tae-Young Ko),곽동훈(Dong-Hoon Kwak),김재형(Jae-Hyung Kim),김주호(Joo-Ho Kim),오승진(Seung-Jin Oh),이승호(Seung-Ho Lee) 대한전자공학회 2019 대한전자공학회 학술대회 Vol.2019 No.11

In this paper, we propose the development of an integrated intelligent parking control system using a 360° camera that has overcome the shortcomings of the existing parking control system. The system proposed in this paper consists of six items as follows. First, license plate recognition software when entering the vehicle, second, real-time parking space identification software using 360° image, third, real-time precision parking guidance software based on deep learning vehicle motion recognition, fourth, multi-license-plate recognition software using 360° image, fifth, real-time parking position identification software using 360° image, sixth, database server etc. Performance evaluation results were high in both recognition rate and time spent, and efficiency was confirmed.

Life Science : this month in 멕 ; Synthesis of Grandisol, the Sexual Attracting lnsect Pheromone

( Young Shin Kwak ),( Byeong Seon Jeong ) 영남대학교 약품개발연구소 2012 영남대학교 약품개발연구소 연구업적집 Vol.22 No.0

In this issue, Suh`s group reported a new formal total synthesis of (±)-grandisol featuring a palladium-catalyzed 4-exo-trig cyclization. Grandisol`s interesting cyclobutane structure has been a popular test model for various cyclization methods over the years. This report summarizes Suh`s formal synthesisof grandisol along with a concise review of the four-membered ring cyclization strategies employed in the synthesis of grandisol.

Relevance between Marketing Route of Social Media and Consumer Age Group for Choosing Dental Clinics

( Shin-young Lee ),( Mi-gyeong Kwak ),( Mi-jeong Kim ),( Jung-hwa Song ),( Young-ju Lee ),( Hye-ju Hong ),( Sang-hwan Oh ) 한국치위생과학회 2021 치위생과학회지 Vol.21 No.4

Background: The purpose of the study was to evaluate the relationship and route of dental Social Media marketing by age group and support effective dental marketingy by age group. Methods: A study was conducted on 265 people, aged 20 to 64 years, who lived in Seoul, Gyeonggi area and regularly used one or more of the social media platforms, Naver Band, Facebook, Instagram, KakaoStory, Twitter, or YouTube more than once a day. A 27-question questionnaire survey of approximately 10 minutes was conducted, and the collected data was statistically analyzed using the PASW program, with the significane level set to 0.05. Results: “Introduction of acquaintances” was the most common route to visit the dentist. Regarding the use of social media platforms based on age group, ‘Instagram’ had the highest frequency among people belonging to the age groups of 20 to 29 years and 30 to 39 years; ‘YouTube’ had the highest frequency among those aged 40 to 49 years; and ‘Naver Band’ had the highest frequency among those aged 50 to 65 years. Conclusion: The most frequently used social media by consumers according to age included Facebook, YouTube, and Instagram. However, social media was found to have no significant impact on the choice of dental institutions, as the number of people who visited the dentist through “Introduction of acquaintances” was the highest, and “Introduction of acquaintances” did not have experience accessing the dentist site after dental marketing. If this study could provide customized marketing information for each age group through social media, it is expected that the marketing effect of dental institutions through social media would be maximized in the future.

Maternal Plasma Hepatocyte Growth Factor Concentrations in Women Who Subsequently Developed Preeclampsia

Shin Young Kim,So Yeon Park,Mi Jin Kim,Moon Young Kim,Kyu Hong Choi,Dong Wook Kwak,Yoo Jung Han,Hyun Mee Ryu 대한의학유전학회 2012 대한의학유전학회지 Vol.9 No.2

The relationship between serum vitamin D levels and sleep quality in fixed day indoor field workers in the electronics manufacturing industry in Korea

Young Saeng Jung,Chang Ho Chae,Young Ouk Kim,Jun Seok Son,Chan Woo Kim,Hyoung Ouk Park,Jun Ho Lee,Young Hoo Shin,Ho Sung Kwak 대한직업환경의학회 2017 대한직업환경의학회지 Vol.29 No.-

Background: Although recent studies have investigated the influence of vitamin D on sleep patterns, there is a lack of research on the relationship between vitamin D and sleep patterns in Korean workers. This study focused on the relationship between serum vitamin D levels and sleep in fixed day indoor field workers in the electronics manufacturing industry in Korea. Methods: The 1472 subjects who were included in this study were selected from fixed day workers in the electronics manufacturing industry who had received a worker’s special health examination at a hospital in Changwon, South Gyeongsang Province between January 2015 and December 2015. Nighttime workers and those who showed symptoms of depression were excluded from this study. The sociodemographic and lifestyle variables of the participants were investigated, including age, sex, marital status, level of education, body mass index, smoking habits, alcohol consumption habits, and regular exercise. Work-related factors were evaluated, such as employee tenure and occupational stress. Serum 25-hydroxyvitamin D was measured as an indicator of vitamin D levels, and quality of sleep was evaluated using the Pittsburgh Sleep Quality Index (PSQI) translated into Korean. Results: The subjects had a mean serum vitamin D level of 13.70 ± 5.93 ng/mL. Vitamin D deficiency, defined as a serum vitamin D level of <10 ng/mL, was found in 24.8% of males and significantly more frequently in females (47.6%). Poor sleep quality was reported by 19.8% of participants with serum vitamin D levels ≥10 ng/mL and by 21.7% of those with serum vitamin D levels <10 ng/mL, which was a significant difference (P = .007). Multiple logistic regression analysis adjusting for significant variables found that poor sleep quality was more likely in those with vitamin D deficiency than those with higher serum vitamin D levels (odds ratio = 1.36; 95% CI, 1.01–1.82). A comparison of serum vitamin D levels and PSQI components showed that the mean scores for subjective sleep quality, sleep latency, and sleep duration were significantly higher in the vitamin D-deficient participants, indicating that the vitamin D-deficient participants had poorer sleep quality. Conclusions: This study investigated serum vitamin D levels in fixed day indoor field workers in the manufacturing industry in Korea and analyzed the relationship of vitamin D deficiency with sleep quality. A significant correlation was found between serum vitamin D deficiency and poor sleep quality. Based on the results of this study, sleep disorder management for workers can be improved by providing regular examinations checking their serum vitamin D levels and supplying vitamin D to workers with serum vitamin D deficiency to enhance their quality of sleep.