회분식 생물반응기를 이용한 BDOC_(rapid)와 BDOC_(slow) 결정

손희종,노재순,강임석 한국물환경학회 2004 한국물환경학회지 Vol.20 No.4

In this study, biodegradable organic matter was divided into a rapidly biodegradable fraction(BDOC_(rapid)) and a slowly biodegradable fraction(BDOC_(slow)) for various waters with different types of DOC. These fractions(BDOC_(rapid) and BDOC_(siow)) were defined by using a shaking incubation method modified from Carlson's method. Also, in this study, optimum incubation time and accuracy were investigated to determine BDOC_(rapid) and BDOC_(slow). When suspended bacteria obtained from raw water and BAC effluent, or attached bacteria from BAC was respectively used as an inoculum, the difference in total BDOC(BDOC_(total)) was minimal. Therefore, total BDOC was determined in 7~8 days by the shaking method, which is comparable with Servais's method by which BDOC was determined in 28 days. In addition, the difference of BDOC between these two methods was within 7%. Although BDOC_(rapid) and BDOC_(slow) were effectively determined by a method defined by Klevens, the difference in optimal incubation time was significant for different water samples. However, when using the shaking method, optimal incubation time for BDOC_(rapid) was found to be 3 days, therefore, the BDOC_(rapid) was defined as the difference between DOC_0 and DOC_(3days), and BDOC_(slow) was defined as the difference between BDOC_(total) and BDOC_(rapid). As a conclusion, for determining the fraction of BDOC using the shaking method, the concentrations of an inoculums and optimal incubation times used in this study were very effective.

노인환자와 풍년환자의 병원 음식 만족도 비교 분석

손주현,천종희 한국식생활문화학회 2001 韓國食生活文化學會誌 Vol.16 No.5

The purpose of this study was to analyze the satisfaction level on hospital foods in elderly and middle aged patients. The subjects were selected among the patients treated in the Inha University hospital during July of 1999. One hundred thirty five elderly patients aged over sixty(68 men, 67 women) and sixty five patients aged in forties(35 men, 30 women) were surveyed through questionnaires in terms of satisfaction level on hospital foods and the food preferences. Satisfaction on general taste, saltiness, serving temperature, appearance, texture and variety of hospital foods was not significantly different according to age. However, elderly men showed significantly higher satisfaction level than elderly women in terms of general taste of hospital foods(p<0.01). The preferences of cooking method for meat, fish, vegetable and the preferred kinds of kimchi and milk & milk products were not significantly different between the two age groups. However, elderly women significantly preferred sauted meat to broiled meat compared to elderly men(p<0.05).

Character Agent와 가상현실 기법을 이용한 웹사이트 개발에 관한 연구 : 기존 사이트 분석을 중심으로

손세환,김명희,김종기 동서대학교부설연구센터 2001 연구센터논문집 Vol.4 No.1

Web environment had developed with haste degree than other business. Research about information transmission method in web environment is gone in many-sidedness degree these day. Field that attract user's interest latest among it is character and virtual reality. specially, virtual reality begins in VRML and much skill is appearing to intel's 3D skill recently. But, eminent skill is site that is not to speak that is standard. Users are applying various imagination skill and sites of several form are appearing. Wish to analyze finding virtual reality site that appear recently and is consultable in site model development.

대구시 고농도 오존 사례일인 경우 대기 오염물질 농도의 일변화 특성

손임영,윤일희,김희종 한국환경과학회 2002 한국환경과학회지 Vol.11 No.12

This study analyzes the surface ozone, NO and NO_2 concentration data from 1997 to 1999 in Daegu. It investigates effect on precursor during high­ozone episode days. The high­ozone episode is defined when a daily maximum ozone concentration is higher than 100 ppb(ambient air quality standard of Korea) in at least one station among six air quality monitoring stations. The frequency of episodes is 13 days(33 hours). The frequency is the highest in May and September, and the area with the highest frequency is Nowondong and Manchongdong. The average value of daily maximum ozone concentration with ozone episode is 81.6 ppb, and that of 8-hour average ozone concentration is 58.6 ppb. It means that ozone poliution is continuous and wide-ranging in Daegu. The daily variation of NO, NO_2 and O_3 in high-ozone episode are inversely proportional one another. Nowondong an industrial area, is affected by pollutants that are emitted from the primary sources, while Manchondong a residential area by the advection of O_3 or by the primary pollutants like VOC_s.

원예치료가 정신 및 지체 장애인의 재활에 미치는 영향

손기철,고언희,엄수진,이상훈,송종은 建國大學校附設農業資源開發硏究所 2002 農資源開發論集 Vol.24 No.-

This study was to investigate the effect of horticulture therapy on the healing and rehabilitation of the mentally retarded (MR) and physical disorder (PD) persons. Horticultural therapy program was carried at S rehabilitation center located in Kyounggi-DO from Jun 29, 1999 to Oct 12, 1999. The participants in this program were 36 clients of MR and PD. They attended 14 times once a week for 1 hour at a time for horticultural therapy. Evaluation of horticultural activities and ADL (Activities of daily living) has been assessed two times, that is, before and after horticultural therapy program (HTP) whereas horticultural therapy group activity treatment procedure and horticulture task skill inventory have been assessed 3 times, that is, before HTP and after each 7 weeks. MR in the evaluation of horticultural activities showed statistically significant in participation, interest and assistance, verbal interaction during activity, self-concept and identity, need-drive adaptation, interpersonal and social relations, cognition and problem solving, exercise perceptivity, life-tasks skill and vocational adjustment. In activities group of MR also showed significant improvement in terms of physical perceptual abilities, cognitive ability, writing ability, social interaction (P<0.001). Additionally, their horticulture task skill were improved significantly in skill and efficiency factor (P<0.008) and their ADL were changed positively but not significant. On the other hand, PD in evaluation of horticultural activities showed significantly positive changes in self-concept and identity, interpersonal and social relations, life-tasks skill and vocational adjustment. However, physical perceptual abilities factor was proven to be effective in horticultural therapy group activities treatment procedure (P<0.002). Only grooming was significantly improved in ADL evaluation of PD (P<0.03). Putting these results together, it was found that horticultural therapy programs would be very useful for rehabilitation and healing method in both MR and PD.

노인환자와 중년환자의 병원음식 배식량에 대한 만족도와 섭취율 비교연구

손주현,천종희 한국식생활문화학회 2002 韓國食生活文化學會誌 Vol.17 No.5

The purpose of the study was to compare the satisfaction level on hospital meal size and actual intake rate of hospital foods between elderly and middle aged patients. Sixty one middle aged and one hundered thirty two elderly patients were surveyed on the foods served in the hospital-rice, soup, meat/fish, vegetable, kimchi and daily products. Compared to the middle aged patients, the more elderly thought the serving size of rice was too big(p<0.05), and those of soup, meat/fish and kimchi tended to be too big. There was no difference in the satisfaction level on the serving size of vegetable dish between two age groups. · In actual intake rates of hospital meal there were no significant differences between the elderly and middle aged patients. However, the elderly male ate significantly(p<0.05) less amount of rice than the middle aged male and the elderly female ate significantly(p<0.01) less amount of meat/fish then the middle aged female. Satisfaction levels and actual intake rates were significantly correlated in all food items.

VS전동기를 대체하기 위한 저가형 VVVF 인버터의 개발

전희종,조성민,윤재식,손진근 崇實大學校 1999 論文集 Vol.29 No.1

VS(Variable Speed)-Motor is speed control method using eddy-current coupling. This method installs eddy-current coupling with constant speed driving Induction Motor and controls rotating speed through a charging change of a excitation current, particularly. VS-Motor is used widely because of simple control and wide speed range. But this method has large losses and low efficiency because of heating as slip drum in low speed region. In cooling, addition of a mechanical devices is difficult and in volume, large space is occupied. Using SCR for control, efficiency of system is low. In case of inverter, though advantage of high efficiency and high performance the price is expensive. Therefore, in this study, we developed low-cost type VVVF(Variable Voltage Variable Frequency) Inverter system for substituting VS-Motor.

개에서 피지선 과형성의 진단 및 치료 증례

박희서,손화영,정성목,송근호,조종기,이영원,신상태,김명철,김덕환,박성준 충남대학교 수의과대학 동물의과학연구소 2004 動物醫科學硏究誌 Vol.12 No.-

An eleven year old castrated male Maltese was presented to the Veterinary Medical Teaching Hospital of Chungnam National University. In physical examination, approximately 0.5 cm round mass was observed on tail base. This small elevated mass has also shown alopecic and firm configuration. It was differentially diagnosed as sebaceous adenoma and hyperplasia by fine needle aspiration. After surgical removal, the sample was diagnosed as sebaceous hyperplasia by histopathological examination. It has not yet shown any signs of recurrence and prognosis has teen good.

소득작물 전후작지 적응 극단기성 벼 ‘중모 1032’

손영보,이종희,조준현,이지윤,오성환,송유천,박동수,박노봉,김상열,여운상,남민희,권영업 忠北大學校 農業科學硏究所 2015 農業科學硏究 Vol.31 No.2

분변토를 이용한 VOCs 흡착에 관한 기초연구

김재홍,손희정,김장호,김수생,서정민 동아대학교 환경문제연구소 1997 硏究報告 Vol.20 No.2

This study was carried out two point view that reuse of sludge and adsorption of benzene, toluene and o-xylene of VOCs in cast, carbonized cast and activated carbon. The cation exchange capacity of cast and carbonized cast were 59.2, 112 meq/l00g, respectively. The specific surface were 560, 800 ㎡/g, respectively. The average removal rates of benzene by 50g cast of 50% hydrous cast, anhydrous cast, carbonized cast, activated carbon were 15.0, 41.2, 88.2, 99.4% in 60min retention time. The average removal rates of toluene by 50g cast of 50% hydrous cast, anhydrous cast, carbonized cast, activated carbon were 12.5, 34.2, 88.2, 99.5% in 60min retention time. The average removal rates of o-xylene 50g cast of 50% hydrous cast, anhydrous cast, carbonized cast, activated carbon were 8.8, 28.5, 84.8, 98.1% in 60min retention time. The adsorption efficiency of test absorbent was in order of benzene > toluene > o-xylene.