慶北地方 고양이의 內部寄生蟲 調査 : Ⅰ 條蟲類 線蟲類 ��鉤頭蟲類 1. Cestoda, Nematoda and Acanthocephala

李熙碩 慶北大學校 1978 論文集 Vol.25-26 No.-

This survey conducted to know the species and infection rates of helminth parasites of cats slaughtered in Taegu from July to August in 1977. The intestines and other organs of 50 cats were used for this examination. The result obtained were summarized as follows: 1. Four species of parasite were identified: species and their infection rates were 30% of Taenia taeniaeformis, 20% of Spirometra sp., 12% of Toxocara cati and 2% of Polymorpnus sp., 2. Intestinal helminths were found in 44% of the cats: single species infection; 28%, double species infection; 14%, tripple species infection; 2%. 3. Polymorphus spis the first report of cats in Korea.

성격평가 질문지의 불안척도 요인구조 : 정신과 환자집단 자료를 중심으로

이숙희,박민철,이상열,오상우 圓光大學校 醫科學硏究所 2005 圓光醫科學 Vol.20 No.2

韓國 在來山羊의 消化管 및 膵臟內 寄生蟲 調査

李鉉凡,李熙碩,崔源弼 慶北大學校 1977 論文集 Vol.24 No.-

Present study was undertaken in order to clarify the species and infection rate of internal parasites in Korean native goats. Abomasum of 100 goats slaughtered in Daejun and abomasum, intestinal tracts, and pancreata of 40 goats slaughtered in Taegu prefecture were inspected. The parasites recovered were classified morphologically with following results. 1) A total of 7 species of parasite was identified. Their habitats and infection rates were as follows; Abomasum-Haemonchus contortus: 20% in Taegu and 42% in Daejun, and Trichostrongylus sp. : 2.5% in Taegu and 3% in Daejun. Small intestine-Moniezia expansa: 12.5%. Large intesine Oesophagostomum columbianum: 27.5%, Oesophagostomum venulosum: 17.5%, and Trichuris ovis: 5%. Pancreas-Eurytrema coelomaticum: 15%. 2) Characteristic nodule formation on the walls of cecum, colon, and ileum was observed in 5 out of 11 goats infected with Oesophagostomum columbianum. No nodule formation, however, was observable in goats infected with Oesophagostomum venulosum. 3) the maximum worm burdens of Oesophagostomum columbianum, Eurytrema coelomaticum, and Haemonchus contortus were higher (above 83) than those of the other parasites. 4) the numbers of female nematodes were greater than of male except Oesophagostomum venulosum.

大邱近郊에 飼育되는 乳牛의 第 1 胃 內容物의 調査 分析 : pH, 纖毛蟲 및 揮發性脂肪酸 ph, Ciliate Protozoa and Volatile Fatty acids

李熙碩,邊明大,咸泰守 경북대학교 1981 새마을 硏究論叢 Vol.1 No.-

The Content of rumen were compared between two groups (A and B) of dairy cow fed different rations. Group A were fed on ration consisted exclusively of concentrates, and Group B were fed on ration consisted mainly of roughage. 1. The pH of content in the rumen showed that group A was 6.9 and group B was 6.5 on the average. 2. Total number of ciliates of both A and B groups on the average per ml showed normal range, displaying somewhat increased in group A than group B. Ten genera or sub-genera and twenty-five species of ciliates were detected from the content of the rumen both A and B group of dairy cow. Among them Betehella was detected for the first in Korea. Entodinium simplex keeps the highest appearance rate of all species of ciliates, showing above 60 per cent of them all, and the others showing below 7 per cent on average. 3. There was no significant difference in volatile fatty acid(VFA) concentration of the contents of the rumen between two groups. When the VFA composition of the contents of the rumen was compared, the acetic acid content was significantly higher (P<0.05) whereas the propionic acid content was significantly lower (P<0.05) in group A than in those of group B.

자연 방사선량 중 ²²²Rn 기여 성분 정량 해석

이병영,채하석,전재식,오희필,김도성 대한방사선 방어학회 1989 방사선방어학회지 Vol.14 No.2

옥외 라돈이 호흡기관에 주는 선량을 측정·평가할 목적으로 CR-39 비적검출기를 내장한 라돈컵을 사용하여 대기중 라돈농도를 측정하였다. 직접형 검출기 및 개방 컵과 필터 컵의 구조를 갖는 CR-39비적검출기에 대한 라돈검출인자는 공기중의 농도가 잘 알려진 표준라돈 조사시설에서 이들 검출기와 라돈컵을 일정기간 조사하여 결정하였다. CR-39를 70°c, 30% NaOH용액으로 220분간 화학부식하였을 때 직접형 거출기와 개방 컵, 필터 컵에 대한 라돈검출인자는 각각 0.273, 0.0813, 0.0371tr mm-2/37 Bqm-3·d)였다. 또한 1988년 5월에서 1989년 3월까지 대전(충남대학교)에서 측정한 대기중의 라돈농도는 개방 컵에 의한 결과는 27.4 - 135.8Bq/m3(0.74 - 3.67 pCi/l)로서 연평균 73.3 Bq/m3(1.98 pCi/l)이었으며, 필터 컵에 의한 결과는 16.7 - 143.9 Bq/m3(0.45 - 3.89 pCi/l)로 연평균 68.5 Bq/m3(1.85 pCi/)이었다. 측정한 옥외 대기중이 라돈농도와 부위별 폐선량모형으로부터 산출한 ICRP표준인의 호흡기관에 대한 실효 선량당량률은 약 520 nSv/h로 평가되었다. A study for the assessment of dose given by outdoor radon to respiratory system has been carried out by making use of radon-cups containing CR-39 plastic track detectors. Detection efficiencies were determined by irradiation of the radon-cups in a standard radon chamber of known concentration. Thus determined detection factors of CR-39 plastic track detector in bare, open cup and filtered cup geometry are found to be 0.273, 0.0813 and 0.0371 trmm-2/(37 Bqm-3 d), respectively, which are chemically etched in 30% NaOH solution of 70℃ for 220 minutes. The outdoor radon concentrations measured at Taejeon (Chungnam National University) from May 1988 to March 1989 are in the range of 27.4 - 135.8 Bq/m3 (0.74 - 3.67pCi/l) by open cup and 16.7 - 143.9 Bq/m3 (0.45 - 3.89pCi/l) by filtered cup, which yield overall annual average value of outdoor radon concentration of 70.8 Bq/m3 (1.91 pCi/l). Corresponding effective dose equivalent rate to respiratory system of ICRP standard man is assessed to be 520nSv/h.

大邱地域 고양이의 견사상충 感染狀況 調査

李熙碩 慶北大學校 1988 論文集 Vol.46 No.-

This survey was conducted to detect adult and microfilaria of Dirofilaria immitis of cats slaughtered in Daegu during the period from August to September in 1988. A total of 56 cats was used for this examination. The results obtained were sumarized as fallows: 1. An adult of Dirofilaria immitis, morphologically identified as such, was detected from the right ventricle of a cat(1.6%) by autopsy. The cat was involved a mature male worm. 2. Microfilaria of Dirofilaria immitis were detected from three of 56 cats(5.4%) by performing blood test. In those cats, no adult worm was found in the right ventricle. 3. No other filarial species were detected from any cats examined. The microfilaria infection rate of Dirofilaria immitis was much lower in cats(5.4%) than in dogs(21%) in Chinju.

공간벡터 개념을 이용한 유도 전동기 기동 토크 맥동의 저감에 관한 연구

전희종,정을기,이석태,최우진 崇實大學校 生産技術硏究所 1994 論文集 Vol.24 No.-

In this investigation the PFM(Pulse Frequency Modulation) will be used for optimizing PWM inverter pulse patterns. In traditional the pulse frequency of PWM is kept constant. But modulated PWM's frequency in this study, the sinusoidal inverter's performance should be improved. The PWM pulse patterns are definitely controlled so that the time-integral function of the voltage vectors in the space vector notation may show a circular locus. Further, performance index will be minimized because of minimizing distortion of output current. Finally, these theories are realized using single-chip microprocessor.

고량강의 항염증 작용에 대한 연구

박히준,이제현,김수영,심범상,구헌종,강전모,최일환,이재동,김남재,이지숙,임사비나 EAST-WEST MEDICAL RESEARCH INSTITUTE KYUNG HEE UNI 2005 東西醫學硏究所 論文集 Vol.2005 No.-

Objective : The use of herbal therapy is becoming an increasingly attractive approach for the treatment of various inflammatory disorders. The Alpiniae officinari Rhizoma is popular in Aisa as a traditional herbal medicine. Alpiniae officinari Rhizoma is a species of the ginger family(Zingiberacease). Method : This study was performed to investigate the anti-inflammatory effect of Alpiniae officinari Rhizoma extract by the methods of "carrageenan induced paw edema" and "Lipopolysaccharide-induced inflammatory mediators in mouse macrophage RAW 264.7 cells". Result : We suggest that Alpiniae officinari Rhizoma extract decreased paw volume induced by plantar injection of carrageenan. Also Alpiniae officinari Rhizoma extract inhibited nitric oxide, prostaglandin E₂production and induced nitric oxide synthase, cyclooxygenase-2 protein expression in Mouse macrophage RAW 264.7 cells stimulated with lipopolysaccharide. Conclusion : This study shows that Alpiniae officinari Rhizoma extract seems to have anti-inflammatory effect by inhibition of nitric oxide, prostaglandin E_(2) production and nitric oxide synthase, cyclooxygenase-2 protein expression.

계지의 항염 효과에 관한 연구

박히준,이지숙,이재동,김남재,표지희,강전모,최일환,김수영,심범상,이제헌,임사비나 EAST-WEST MEDICAL RESEARCH INSTITUTE KYUNG HEE UNI 2005 東西醫學硏究所 論文集 Vol.2005 No.-

Objectives : Cinnamomi Ramulus (CR), the young twing of Cinnamomi loureirii nees, has been used for treating symptoms related to pain. rheumatic arthritis and inflammation in Korean herb medicine. This study was carried out to investigate the anti-inflammatory effect of CR in vivo and in vitro. Methods : Extracts of CR were prepared and the chemical components of the extracts were examined by gas chromatography-mass spectrometry (GC-MS). The extracts were administrated to the rat paw edema model induced by carrageenan to evaluate the anti-inflammatory effect of CR. The expressions of nitric oxide (NO). prostaglandin E2(PGE2), inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX)-2 were also quantified in lipopolysaccharide (LPS)-induced RAW 264.7 macrophages to survey the effect of CR in vitro. The main components were cinnamaldechyde and coumarin. Results : We examined the anti-inflammatory activity of the 80% ethanol extract of Cinnamomi Ramulus in vivo by using carrageenan-induced rat paw edema model. Maximum inhibition of 54.9% was noted at the dose of 1000㎎/㎏ after 2 hours of drug administration in carrageenan-induced rat paw edema and this showed a potent anti-inflammatory effect. Conclusions : The results showed that Cinnamomi Ramulus suppressed dose-dependently LPS-induced NO production in RAW 264.7 macrophages and also decreased iNOS protein expression. Cinnamomi Ramulus also showed a significant inhibitory effect in LPS-induced PGE2 production and COX-2 expression.

農家副業으로서의 畜産現況과 그 改善方案에 關한 硏究

洪鐘旭,李熙碩,朴恒均,崔源弼,李鉉凡,金祥基 慶北大學校 1978 論文集 Vol.25-26 No.-

Recently, there have been much corncerns about the strategies which can reasonably increase farm income at the average farm level. In other words, as a result of third-term Five Year Economic Development Plan there was a remarkable gap between farm household and non-farm household incomes. Therefore, various policy tasks to eliminate this unbalanced income growth are currently being implemented. This study was carried out to identify the situation of livestock farming at general farm level, regarded as one of income generation strategies for the farm sector. Some results of the study can be summarized as follows: First of all, it was found that a group of farms which raise a small size of animals like Korean cattle, hog, and various poultry gave higher resource bases as compared with that of non-livestock farms. Secondly, it was also recognized that both farm and farm household income levels of small-scale livestock farms were higher than those of non-livestock farm group within the same region, specifically as much as approximately ￦200,000. Thirdly, it was known that the average size of animal raising per household in 0.9 head of cattle, 0.8 head of hog, and 34 lyers of poultry, respectively. To the end, according to the farm disposal practices of major by-products, only about 18 percent of total rice straws produced at individual farms was utilized for the animal raising, and about 45 percent of all the brans available at farms for the livestock enterprise. The rest of straw and brans in regarded as selling at farm level. In this respect, it may be recommended either to increase current size of animals or to expand number of livestock farms.