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비환(鼻環)에 의한 돈폐충증(豚肺蟲症)의 예방(豫防)에 관한 연구(硏究)
임정택,윤화중,한방근,김영홍,Lim, C.T.,Yoon, H.J.,Han, B.K.,Kim, Y.H. 대한수의학회 1972 大韓獸醫學會誌 Vol.12 No.1
1. Of 4,112 earth worms, 3,480 were classified as Eisenia foetidae, and 3,277 of the species were infested with the larvae of Metastrongylus apri. 2. Cresol and $CaCN_2$ were found effective in the insecticidal test of earthworms. 3. The nose ring was effective, in pigs, to prevent digging and eating the earthworms and resulted a lower lungworm incidence in pigs. 4. The best place to put the nose ring was the nasal septum.
방사성 옥도 ( 131Ⅰ ) 가 Guinea Pig 의 난소 , 자궁 및 성주기에 미치는 영향
이강욱,윤화중,이규승 ( K . W . Lee,H . J . Yoon,K . S . Lee ) 한국축산학회 1973 한국축산학회지 Vol.15 No.2
The effects of radioiodine (^(131)I) administration on the histology of ovary and uterus and sexual cycle of the mature guinea pigs were observed. A single dose of 4.5 mC radioiodine per ㎏ body weight was injected subcutaneously. On the 1, 7, 14, 28, 42 and 56th day after radioiodine treatment, five treated and 5 control guinea pigs were sacrificed and their ovary and uterus were examined histologically. The variations in sexual cycle were examined by vaginal smear method through the experimental period. The results obtained were as follows: 1. No histological changes in the ovary were observed on the first day after treatment. On the 7th day after treatment, however, some atretic follicles were appeared and granulosa cells were changed with pyknosis and karyorrhexis. From the 14th day onwards, primordial follicles began to be damaged with a tendency to be severe gradually. After 42 days atretic follicles .and atrophy or hypoplasia of interstitial cells wore observed. On the 56th day after treatment, these ovaries began to be restored to the normal state. 2. The atrophy of myofibrils and multiplications of interstitial connective tissue of tunica muscularis were observed in the uterus from after treatment. 3. The change in sexual cycle of the treated guinea pig was apparent. The diestrus period extended in some guinea pigs on the 10th day after treatment. From the 21st day onwards, the distinct extension of diestrus period was observed.
韓國에서의 日本腦炎에 關한 硏究 - (第II報) 日本腦炎發生의 關係要因에 對한 醫學計學的 考察
Lee W.C.(李元暢),Yun K.B.(尹快炳),Lee T.J.(李澤柱),Yoon H.J.(尹和重),Chung, B.H.(鄭柄鉉),Lee S.M.(李相穆) 한국예방수의학회 1983 예방수의학회지 Vol.7 No.1
This paper will present an epidemiological information aspects of Japanese encephalitis in Korea of the past ten years from 1971 to 1980 and the medical statistical observation on the relative factor of Japanese encephalitis. It hoped that the information will be used for reference in future endeavors of study in the follows: The obtained results were as follows: 1. The mean of the incidence cases of Japanese encephalitis in Korea from 1971 to 1980 was 94.2±24.6(S.E.), that of incidence rate per 100,000 was 0.26±0.07 (S.E.) and that of case fatality rate was 3.6±0.89 per 100 cases. 2. The highest incidence cases of Japanese encephalitis could be found in younger whose age under 19 years old, which accounted 96% of the total incidence cases. 3. The correlation coefficient between the incidence cases of Japanese encephalitis and number of vaccinated in man was r=-0.416, its and pesticide consumtion amount was r=-0.432 and its and number of pig vaccinated was r=-0.485. 4. Correlation coefficient between year after imported and positive rate of HI test of Japanese encephalitis was r=+0.976.
윤여창,김태종,이중복,이기수,윤화중,황도윤 건국대학교 동물자원연구센터 1998 動物資源硏究誌 Vol.19 No.-
Exteroxigenic Escherichia coli(ETEC) is a major cause of diarrhea in neonatal and weaning piglets. The incidence of ETEC in piglets with diarrhea was investigated by detecting the K88, K99 and 987P antigens from the isolated strains of Escherichia coli(E.coli). This study was carried out to investigate the biochemical characteristic, antibiotic susceptibililty and development of E.coli vaccine against diarrheal disease in piglets. The results obtained from this study were summarized as follows: 1. 24 strains of K88 positive ETEC were isolated from 64 E.coli. 2. In antibiotic susceptibility test, K88 positive ETEC showed high sensitivity to imipenem but resistance to penicillin and vancomycin. 3. 16 strains were positive for heat labile toxin, but not shown hemolysis. 4. The purified pilus of K88 positive ETEC had molecular weight of 28.5 KDa by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. 5. Serum antibody responses to immunogen in guinea pigs given experimental oil and gel emulsion vaccine peaked at 4 and 6 week after vaccination. 6. In the mean hemagglutination inhibition titer to antigens of guinea pigs, oil emulsion pili vaccine was 1:1280 and those given gel emulsion pili vaccine was 1:640 respectively. 7. Agglutination titers in pregnant gilts given the oil emulsion pili vaccine were significantly higher compared to those of control groups. 8. The protective efficacy of the oil emulsion pili vaccine was 77.3% under field condition.
形狀記憶素子 (Cu_(93-x)Zn_x) Al_7의 Kinetics 와 Thermodynamics에 關한 硏究
張忠根,琴彩,徐日煥,尹和重,吳熙弼 충남대학교 기초과학연구소 1981 연구논문집 Vol.2 No.-
In order to get basic thermodynamic informations about shape-memory alloys, the samples, (Cu_(93-x)Zn_x)Al_7, were prepared in the argon gas at the temperature 1150℃. The investig ons for density, specific heat, latent heat, entropy, activation enthalpy, shape memory effect, phase transformation temperature, crystal structure and kinetics have revealed the following results for these samples : 1) these shape-memory alloys have one way memory character and 99 percentage recoveries 2) these alloys have body-centered tetragonal structure below A_s points and body-centered cubic structure above A_f points 3) the phase-transformation temperatures of these alloys are directly proportional to the Zn content 4) the densities of these alloys are about 8.1g/㎤ ; specific heat, 0.1㎈/g ; latent heat, 5㎈/g ; entropy, about 0.016㎈/gK and activation enthalpy, 32.75 K㎈/mole.
張忠根,琴彩,徐日煥,尹和重,吳熙弼 충남대학교 자연과학연구소 1981 忠南科學硏究誌 Vol.8 No.1
The shape recovery process and the percentage recovery of Cu-Al alloys have been measured as a function of temperature in the range of 450-750℃ at the composition range from 10.8 to 15.0 wt pct aluminum. These alloys show one way memory effect and approximately 40% recoveries at parent phase finish point.
張京鎭,尹和重,鄭仁虎,李東熙 건국대학교 동물자원연구센터 1992 動物資源硏究誌 Vol.17 No.-
This study undertaken in order investigate the effects of electro-acupuncture for the dogs with traumatic paralysis of hindquarters. The kind of dogs with paralysis of hindquarters used in this study were 12 bilaterals, 5 right sides, and 4 left sides, but all dogs were without bone injury on X-ray. Electro-acupuncture was performed with a current of 2-4 Volts and 25Hz at the acupuncture point of Tchuk-Joong(positive), Back-Hoe(negative), and Sam-Eum Kyo(negative) for 25-30 minutes a day. The definition of "effectiveness" was stand up alone, "ineffectiveness" was impossible to stand up alone. 1. The 21 cases appyling electro-acupuncture resulted in 14 effectiveness(67%) and 7 ineffectiveness(33%). 2. It was judged that the combination of acupuncture points to Tchuk-Joong, Back-Hoe, and Sam-Eum Kyo was effective for the dogs with paralysis of hindquarters. 3. It was recognized that the effects of electro-acupuncture was good in the traumatic neurologic disturbance without bone injury.