아산시 송악저수지의 수질오염 현황 및 부영양화 저감방안 연구

손부순,염윤기,이종화,장봉기,박종안 순천향대학교 기초과학연구소 1998 순천향자연과학연구 논문집 Vol.4 No.2

This study was conducted to estimate the water pollution load, water quantity and quality of inflow stream, status of water pollution and reduction of eutrophication in the Song-ak lake in Asan city. Inflow of branch to Song-ak lake has three streams, one is Eu-gok stream which has the most width of inflow area and another is Dong-hwa stream and the other is Ma-gok stream. The sampling numbers for water quality are 30 points from the sediment of bottom in the Song-ak lake from June, 1997 to ay, 1998. Water quality had been tested for water temperature, pH, dissolved oxygen(DO), chemical oxygen demand(COD), suspended solid(SS), total nitrogen(T-N), total phosphorus(T-P), colony numbers of E. coli, chlorophyll-α. The total nitrogen, total phosphorus and heavy metals(Fe, Pb, Cd) were analyzed by the migration test of the sediment. The results were as follows; The rate of water pollution by the livestock wastewater of the total water pollution load for BOD, SS, T-N and T-P were 59.8%, 82.9%, 56.1% and 90.6%, respectively. Mean daily inflow was 25,369m3. Quantity of inflow was highest at Eu-gok stream. The mean levels of pH, DO, COD, SS, T-N, and colony numbers of E. coli of the inflow water were 7.52, 10.25mg/ℓ, 2.12 mg/ℓ, 3.03 mg/ℓ, 2.25 mg/ℓ, 0.11 mg/ℓ and 1,795/100㎖, respectively. The worst inflow water quality was observed at Dong-hwa stream. The mean levels of pH, DO, COD, SS, T-N, T-P, T-N/T-P and colony numbers of E. coli at Song-ak lake were 8.06, 9.32mg/ℓ, 6.83 mg/ℓ, 4.78 mg/ℓ, 1.66 mg/ℓ, 0.115 mg/ℓ, 20.75 and 64/100㎖, respectively. these are higher than class IV by environmental water quality standards for lake. Mean level of trophic state index was 59.4. The mean levels of T-N, T-P, Fe and Pb by migration test of sediment at Song-ak lake were 259.7ppm, 10.546ppm, 1,704ppm and 8.54ppm, respectively. As the water pollution was mainly caused by livestock waste, the strategy for the reduction of eutrophication of the Song-ak lake should be concentrated on the control of the livestock waste.

《 難經 》의 臟腑虛實에 따른 鍼灸補瀉法에 關한 硏究 : 體質針 原理에 關한 硏究(Ⅰ)

윤종화,김주경,손성철 대한침구학회 2001 대한침구의학회지 Vol.18 No.6

Obejective : Based on 《sixty-ninth Nan》 (《難經·六十九難》) the interpromoting of the five element's balance method to discuss following "when deficiency than should strengthen mother and when excessive than eliminate son" theories. Method : This strengthening and eliminating method is based on Jang-bu organ's balance method when "east is excessive (liver excessive (肝實 )) and west is deficiency (lung deficiency (肺虛))" then "eliminate the south and strengthen the north "'s method. Results : The seventy-fifth Nan (《難經·七十五難》) explains" son effects mother's excessive and mother effects son's deficiency " theory where it balance method of the inter-overacting five elements controlling Jang-bu organ's differentiations. The eighty-first Nan (《難經·八十一難》) explains strengthening-eliminating method of "lung excessive and liver deficiency." Since there are two different perspective of seventy-fifth and eighty-first Nan, we must compare and discuss to make right point of view. Conclusion : the treatment method in 《Nan kyoung sixty ninth nan》 could be understood as a view of five element constitutional theory (五行體質理論), the treatment method in 《Nan kyoung seventyty-fifth nan》 of eleminating fire and strengthning water in case of liver excess and lung defficiency and the treatment method in 《Nan kyoung eighty-first nan》 of strengthning liver and eleminating lung in case of lung excess and liver defficiency could be understood as a view of the yin-yan constitutional theory (陰陽體質理論).

순천향대학 강의실의 도로교통소음 폭로량에 대한 조사

손부순,이종화,장봉기,박종안 순천향대학교 기초과학연구소 1999 순천향자연과학연구 논문집 Vol.5 No.1

Recently, there has been widespread recognition that traffic noise is a serious social problem. Soonchunhyang university also likely to be suffered by the problem because a busy highway is near the school. In this study, we examined the exposure level to traffic noise in a classroom of Soonchunhyang university. The results were as follows: 1. Total mean exposure level in classrooms was 42.6 dB. The exposure level in college of humanities was higher than that of orther colleges (college of natural sciences and college of medicine) 2. The exposure level in a classroom was 37.5 dB if the windows were kept close, and 42.5 dB if open. The level also influenced by the distance between the classroom and road. 3. After the construction of an antinoise wall, the exposure level was slightly changed from 43.3 dB to 42.3 dB. This suggest that the exposure levels were not affected by the antinoise wall.

닷넷 기반 분석 애플리케이션 성능 향상에 관한 연구 : 웹 기반 중심 Web Based

손경덕,김화종 강원대학교 정보통신연구소 2005 정보통신논문지 Vol.9 No.-

.NET is the fastest-growing development platform in the world. ASP.NET powers some of the biggest web sites and applications. This paper provides end-to-end guidance for managing performance and deep platform knowledge across the .NET Framework technologies. This paper introduces common issues of performance and proposes coding techniques to improve the performance of ASP.NET pages and controls, ADO.NET, and Enterprise Services(COM+). Our performance study shows that these techniques are faster than general programming techniques.

Glutaraldehyde계 상아질 과민증 탈감작제에 의한 치수신경 활동성 변화 및 상아세관 폐쇄양상

손호현,이광원,김종화 大韓齒科保存學會 1996 Restorative Dentistry & Endodontics Vol.21 No.2

농장 사육되는 타조에서 나타난 다리 기형의 증례 보고

최종윤,손화영,전무형,조성환,김혜성,류시윤,박배근,이영원,윤원기 충남대학교 수의과대학 동물의과학연구소 2001 動物醫科學硏究誌 Vol.9 No.-

Two farmed young ostrich chicks were applied to pathology laboratory at Chungnam National University. Grossly, one ostrich showed rotated tibiotarsus, the other showed rolled toes. Case 1 ostrich was hypertrophy of fibualis longus and tibial cranialis tendon and gastrocnemius tendon in crus, inflammation of flexor digitorum longus. In histopathological views, myocytes of fiburalis longus were showed hypertrophy and hyperplasia. It is not found any specific feature in X-ray of the case 2 ostrich. Limb deformities were detected frequently in farmed ostrich chicks in 2- to 3 weeks old. Limb deformities were an important cause of mortality in farmed ostrich chicks during the first 10weeks after hatch. Cause of limb deformities were considered a nutrition problem.

澱紛 資化性 효모의 選別 및 性質

李鐘洙,孫東和 대구산업정보대학 1991 논문집 Vol.5 No.-

This study was made of 11 starch-assimilating yeasts with respect to their capacity for direct conversion of starch into single cell protein and α-amylase activity. Lipomyces starkeyi KFCC 4421, the strain with the higest values, was selected. The results abtained were as follows, under otimum culture condition. 1. Y starch and α-amylase activity were 0.3220 and 4.38 IU, respectivly. 2. Y starch was maximum at 1% soluble starch and initial pH 5.0 in 4 days after incubation. 3. Y starch was maximum in the medium containing 0.5% Yest extract as nitrogen source.

순구개열자의 선천결손치와 과잉치의 발생빈도에 관한 연구

강종화,강정숙,손우성 대한치과교정학회 1993 대한치과교정학회지 Vol.23 No.3

The purpose of this study was to evaluate the frequency of congenital missing teeth and supernumerary teeth in cleft patients. The subjects were divided into bilateral cleft lip and palate(BCLP), unilateral cleft lip and palate(UCLP) and cleft palate alone(CP alone) group. 97 cleft patients(BCLP 15, UCLP 70, CP alone 12) between 6-20 years old were evaluated. Panorama film, Orthodontic chart and initial intraoral photogram were employed for this research. The obtained results were as follows. 1. The incidence of congenital missing teeth in total cleft samples was 57.7%, and the incidence of supernumerary teeth was 26.8%. Each incidence was higher than non-cleft. 2. The Incidence of congenital missing teeth was the highest in BCLP and the lowest in CP alone. 3. The number of congenital missing teeth per perso was usually one, and the frequency was higher in the maxilary lateral incisors(67.8%), and maxillary second premolar(14.9%) than other teeth. 4. Most of tooth number anomalies in cleft patients were found in maxilla, especially adjacent region to the cleft site.

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.

개에서 관찰된 모기질세포종의 증례보고

조성환,손화영,김혜성,최종윤,류시윤,박배근,윤원기,홍성혁,김덕환 충남대학교 수의과대학 동물의과학연구소 2002 動物醫科學硏究誌 Vol.10 No.-

Pilomatricoma was histopathologically diagnosed in a 2.5-year-old male Alaskan malamute. The patient was referred to Chungnam National University, Veterinary Medical Teaching Hospital with solitary, firm and well-circumscribed mass at shoulder. Grossly, the mass was dome shaped to tumor like and 10 x 8 x 5㎝ in size. Some lesions had gritty or bony consistency and was chalky when sectioned Histopathologic feature included mumerous clusters of tightly arranged, basaloid cells with evenly distributed chromatin and ghost cells were characterized by a central unstained zone. The ghost cells often become calcified and osseous metaplasia was also present.