RISS 학술연구정보서비스

검색
다국어 입력

http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

변환된 중국어를 복사하여 사용하시면 됩니다.

예시)
  • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
  • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
닫기
    인기검색어 순위 펼치기

    RISS 인기검색어

      검색결과 좁혀 보기

      선택해제
      • 좁혀본 항목 보기순서

        • 원문유무
        • 원문제공처
          펼치기
        • 등재정보
          펼치기
        • 학술지명
          펼치기
        • 주제분류
          펼치기
        • 발행연도
          펼치기
        • 작성언어

      오늘 본 자료

      • 오늘 본 자료가 없습니다.
      더보기
      • 무료
      • 기관 내 무료
      • 유료
      • Application of Artificial Insemination Technology for Dairy Breeding in Mongolia

        Hyun‐Tae Jo,Jong‐In Jin,Seong‐Su Kim,ByungHyun Choi,Tumor Baldan,Jung‐Gyu Lee,Yun‐Shik Kim,Sam‐Churl Kim,Il‐Keun Kong 한국동물생명공학회(구 한국동물번식학회) 2011 발생공학 국제심포지엄 및 학술대회 Vol.2011 No.1

        This study was focused on improvement of milk production in Mongolia dairy industry by artificial insemination (AI) technology, of which was supported from ODA project of KOICA in Republic of Korea. The study was started from January 2009 to present and 3rd years in this year. So, all data, especially synchronization and pregnancy of dairy cows (Holstein) will be summarized in final result in this year. For synchronization, total 81 dairy cows selected from 4 private farms that were 38, 30, 8 and 5 in Undarmal milk, Onjin (Enkhbayer), Jargalant, and BRM School, respectively. All the dairy cows were injected intramuscular (IM) of 5 ml PGF2α in the vulva and detected estrus 2 to 3 days after PGF2α injection. Total 78 out of 81 dairy cows (96.3%) were detected estrus by only 1 time injection of PGF2α. The dairy cows that were induced estrus, inseminated with 0.5 ml dairy frozen semen by conventional AI techniques. The pregnancy diagnosis of the AI dairy cows was detected by uterus palpation after 60 days of insemination. Total 75 from 78 inseminated dairy cows (90.1%) were diagnosis pregnant. The estrus induction and pregnant rate were very effective using PGF2α injection and conventional AI techniques in Mongolia dairy cow. The results indicated that AI after estrus induction in Mongolia dairy cows could be applied to dairy breeding technology to improve the breeding efficiency and milk production.

      • 표준 용매 벤젠의 Rayleigh 비의 온도 의존성

        박일현,이종근,윤관한,조동환,민병길,방대석 金烏工科大學校 2000 論文集 Vol.21 No.-

        The Rayleigh ratio of benzene is a very important physical constant with which the integrated scattered intensity of laser light scattering can be converted into the absolute value. In this study temperature dependence of Rayleigh ratio of this solvent has been investigated with two different methods in the temperature range of 25-75℃. It was found that in the direct measurement the non-linear behavior of its Rayleigh ratio were observed as increasing temperature even if the scattering volume correction was applied to the scattered intensity of benzene. However the result of indirect measurement based upon the invariance of molecular weight of standard polystyrene polymer for any polymer solution temperature showed us that its temperature dependence up to 75℃ could be expressed with the Benoit's linear equation rather than the non-linear one. It seems that the scattered intensity in direct method has more complicate contributions at the elevated temperature. Further research works are necessary in order to solve such discrepancy clearly.

      • KCI등재

        순열 및 구개열 환자의 외과적 치료방법에 관한 임상적 연구

        신병철,이동근,성길현 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.4

        In order to find the distribution, causes and treatments of cleft lip and/or palate, I analyzed 113 patients of cleft lip and/or palate who were treated in the Department of Oral and Maxillofacial Surgery, School of Dentistry, Wonkwang University, Iksan, Chunbuk, KOREA from September 1984 to August 1995. The obtained results were as follows. 1. In total 113 patients of cleft lip and/or palate, male patients were 63 cases (56%) and female patients were 50 cases(44%). 2. In distribution of cleft lip and/or palate, cleft lip patients were 30 cases (27%), cleft palate patient were 23 cases(20%) and cleft lip and palate patients were 60 cases(53%). 3. Unilateral cleft lip patients (78 cases: 87%) were larger than bilateral cleft lip. In unilateral cleft lip patients, lip side cleft lip patients (54 cases: 50%) were larger than right side cleft lip patients (33 cases: 37%). 4. Possible causes of cleft lip and/or palate were related with familial tendency, drug intoxication, malnutrition, old maternal age, stress and hypoxia during 4-8 weeks of pregnancy period. 5. The favorite treated method of cleft lip was Millard rotation-advancement method. probably the most popular operated period was 3 months. 6. The useful operating technique of cleft palate was Wardill V-Y flap method. The most popular period has been 18 to 24 months. 7. In 11 patients with velopharyngeal insufficiency, hypernasality decreased by superior based pharyngeal flap pharyngoplasty. 8. Cleft alveolus was treated with autogenous and allogeneic bone graft. The most appropriate operation period was 9 to 11 years.

      • KCI등재

        내인성 혈장 리튬 농도와 정신분열병

        오채근,김종인,이병학,윤재항,김창현,김성재 大韓神經精神醫學會 2007 신경정신의학 Vol.46 No.1

        Objectives : The aim of this study was to compare endogenous plasma lithium concentrations among schizophrenic patients classified by DSM-IV subtype and control groups and to investigate the correlation of endogenous plasma lithium concentration and psychotic symptoms in schizophrenia. Methods : Schizophrenic patients were selected among psychiatric inpatients without lithium medication and then classified by DSM-IV schizophrenia subtype, Schizophrenic patient groups were composed of 15 disorganized type, 15 paranoid type and 15 undilferentiated type schizophrenic patients. The control group was composed of 15 healthy subjects without any psychiatric disease,Endogenous plasma lithium concentrations were estimated by inductively coupled plasma atomic emission spectrometer. The psychotic symptoms in schizophrenic patients were classified as positive symptoms, negative symptoms and disorganized symptoms according to andreasen classificationl about SANS and SAPS items. Endogenous plasma lithium Con-centration among three subtypes of schizophrenia and control group was compared, and correlation between endogenous plasma lithium concentrations and psychotic symptoms was examined. Rcsults : 1) Schizoprenic patients showed higher endogenous plasma lithium concentration than control groups (p=0.033). Endogenous plasma lithium concentrations were significantly different among three subtypes of schizophrenia (p=0.001). Compared with the control group, disorganized type showed higher endogenous plasma lithium concentration, but paranoid type and undifferentiated type were not significantly different. 2) Disorganized symptoms correlated with endogenous plasma lithium concentration (r=0.416, P=0.004), but negative symptom and positive symptom did not significantly correlate with endogenous plasma lithium concentration (r=0.202, P=0.184. r= -0.216, P=0.155). Conclusion : These results suggested that schizophrenic patients with disorganized symptom show the differences in utilization or distribution of endogenous lithium.

      • 원자력 발전소 근로자에서 업무상 질병으로 인정받은 급성 골수성 백혈병 1예

        임현술,정해관,김수근,박병찬,이관 東國大學校醫學硏究所 2002 東國醫學 Vol.9 No.2

        저자들은 10여 년 동안 원자력 발전소 협력업체에 종사하면서 저선량의 방사선에 노출된 근로자로 급성 골수성 백혈병으로 진단 받고 사망 후 업무상 질병으로 인정된 증례를 보고하는 바이다. 증례에 대한 의무기록과 혈액검사 및 조직검사, 세포유전학 검사를 검토하였으며 환자의 작업 내역, 방사선 피폭량 및 동료 근로자에 대하여 조사하였다. 환자는 35세 남자로 1997년 11월 20일 경북 포항시 소재 D 대학병원에서 용접공에 대하여 실시하는 기타 중금속 특수건강진단(망간)에서 백혈구 수가 μL당 108.9×10³개, 혈색소는 8.6g/dL로 급성 백혈병을 의심하였다. 11월 24일 대구광역시에 위치한 K 대학병원을 방문하여 급성 골수성 백혈병으로 확진되었다. 골수검사에서 이소성 B 임파구성 표지자를 지닌 AML M2로 진단되었고, 염색체 검사에서 필라델피아 염색체가 발견되었으며, 46 XY t(1:4)(p32:p16)의 소견을 보였다. 항암 화학요법을 시행하였고 주기적인 항암 약물요법과 추적 관찰을 시행하였다. 1999년 5월 30일 급성 골수성 백혈병에 의한 합병증인 폐렴 및 패혈증으로 사망하였다. 본 증례의 방사선 피폭량은 1,853 mRem (18.53 mSv)이었으며, 방사선에 의한 암발생 원인확률은 미국 기준으로 5.4-6.1%이었다. 우리나라는 업무상 질병인정 기준에 방사선 노출에 의한 백혈병이 인정된다고 명시하고 있어 업무상 질병으로 인정되었다. 그러므로 우리나라 실정에 맞는 전리방사선 피폭량에 따른 업무상 질병 인정기준을 설정하여야 하며 방사선 피폭 근로자에 대하여 방사선 질환의 감시체계를 운영하여야 한다. Acute myelogenous leukemia (AML) has been known as an occupational disease induced by irradiation. We report a case of acute myelogenous leukemia with a history of low dose irradiation in a nuclear power plant. The authors reviewed the clinical and hematologic features of the case. We also reviewed the job contents of his workplace. We also interviewed other workers in the same workplace. The amounts of radiation exposure were reviewed. The worker was a 35-year-old male who had worked in a nuclear power plant for 11 years (1987-1997). Total amounts of radiation exposure during the work period was 1,853 mRem. He had been diagnosed as AML on November, 1997 at a routine periodic health examination. He died of refractory leukemia on May, 1999. The AML developed in this patient seems to be related to the exposure to radiation. To prevent irradiation injury, we must modify work procedures, begin comprehensive medical surveillance, educate workers on risks of radiation, and increase workers awareness of safety regulations in the workplace.

      • SCOPUSKCI등재

        Most Probable Number 방법을 이용하여 측정한 중랑천 河床土壤의 혐기성 세균의 수와 수질과의 상관 관계

        박두현,김병홍,임시근,최영효 한국미생물생명공학회 ( 구 한국산업미생물학회 ) 1996 한국미생물·생명공학회지 Vol.24 No.3

        중랑천의 하상 토양의 혐기성 호흡세균의 분포를 MPN법으로 조사하였다. 철이온환원세균을 조사하기 위해 배양액 중의 Fe(Ⅱ)을 확인하는 변형된 oxalate-ferrozine 법을 개발하였으며, 황산염환원세균(SRB)과 메탄생산세균을 각각 FeS 침전과 head space의 CH_4를 검출하는 방법을 채택하여 중랑천 지천과 본천의 혐기성 미생물 분포를 조사한 결과 오염 정도가 상대적으로 높은 본천에서 철이온환원세균이 10^7~10^8 cells/g 정도로 조사되었으며 지천의 경우 10^7 cells/g이었다. 우이천 상류를 제외한 모든 조사 지점에서 SRB와 methanogen 이 10^3 cells/g이었다. 이 결과는 분류 하수관의 설치로 유기물의 유입이 낮아진 조건에서도 하상의 침전층에서 유래하는 유기물을 이용하여 철이온환원세균이 생장할 수 있으며, SRB와 methanogen의 생장은 철이온환원세균에 의해 방해를 받는다는 것을 나타낸다. Sediments collected from the Jungnang-cheon and its tributaries were used to enumerate anaerobic bacteria by most probable number (MPN) methods. A simple method was developed to detect ferrous ion in the culture fluid in order to count the number of iron ion reducers, and sulfate-reducing bacteria (SRB) and methanogens were detected by the presence of FeS precipitate in the culture or methane in the head space, respectively. The numbers of iron reducer was in the range of 10^7~10^8/g in the sediment of the stream containing higher organic content than the tributaries. The sediments of tributaries were analyzed to contain iron reducers less than 10^7 cells/g. With one exception the numbers of SRB and methanogens were less than 10^3 cells/g in the sediment. From these results it is concluded that organics in the sediment support the growth of iron reducers, which out-compete SRB and methanogens.

      • 생체분해성 고분자를 이용한 사시수술용 제형개발 및 효용성에 대한 연구

        민병무,김용백,김승영,김창식,박근성,길숙종,조항진,이성복,노승무,송규상,강대영,조준식,양준묵,정경수,최선웅,이진호,김학용,인현빈 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.1

        A new device, muscle clamping system was developed to facilitate exact quatifying technique A strabismus surgery, and reduce the risk of complications. The device is composed of a lower fixing body with three jaws and an upper supporting body. They are used to clip an extraocular muscle and fix it to the sclera with a single bite. Superior rectus recession on 16 rabbit eyes were performed with this new device. Conjunctival injection, muscle adhesion strength, and light microscopic findings were examined at 1, 2, 4 and 8 weeks postoperatively. The Conjunctival injection were minimal, adhesion power ranged from 420 to 600 gram gravity, which is sufficient in withstand the normal pull of human extraocular muscle. In microscopic exam, some Inflammatory cells and fibrosis were found. The new device was technically easy, fast, and accurate, so it may be useful in stabismus surgery.

      • Polyvinylfluorocinnamate 광배향막 표면에서의 액정배향에 관한 연구

        이병현,함성근,임지철,송기국 慶熙大學校 材料科學技術硏究所 1997 材料科學技術硏究論集 Vol.10 No.-

        광배향에 의하여 액정의 방향자가 유도되는 메카니즘을 이해하기 위하여 광반응성 고분자인 polyvinylfluorocinnamate의 UV 조사에 따른 구조변화를 FTIR과 UV/Vis spectroscopy를 이용하여 조사하였다. 선편광이 된 UV를 등방성의 고분자 필름에 조사하여 필름 내에 광학적 anisotropy가 형성되는 것을 확인하였고 이러한 배향막의 anisotropy에 의하여 액정의 방향자가 결정되는 것을 알 수 있었다. 광조사에 의하여 UV의 편광방향과 수직으로 늘어서게 된 분자 사슬내의 group들이 분산력에 의하여 액정분자의 배향을 조사된 UV의 편광방향과 수직인 방향으로 유도하는 것이다. In order to understand the induction mechanism of the liquid crystal director, structural changes of photosensitive polyvinylfluorocinnamate with UV irradiation were investigated using FTIR and UV/Vis spectroscopy. It was found that optical anisotropy was induced in the film by irradiation of linearly polarized UV light onto the isotropic polymer film, and such anisotropy in the film determined the direction of the liquid crystal director. The groups in the polymer, which are preferentially aligned perpendicular to the polarization direction after the UV exposure, induce liquid crystal alignment perpendicular to the polarization direction of UV via dispersive intermolecular interactions.

      • Mesh형 내부전극을 사용한 2중 원통형 오존발생기의 온도 의존특성

        전병준,이상근,송현직,박원주,이광식 영남대학교 공업기술연구소 1999 工業技術硏究所論文集 Vol.27 No.1

        Nowadays, environment pollution caused by development of industrial society becomes a serious social problem. So, ozonized gas is suggested as a counter plan against the problem. In this paper, a double cylindrical type ozonizer has been designed and manufactured to improve ozone yield by cooling external electrode. The ozonizer equipped with three electrodes(central, internal and external electrodes) and two gaps. Discharge and ozone characteristics are described in this paper by varying flow rate( Q ) of oxygen suppling gas, temperature of cooling gas and supplied voltage.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼