http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
마산연안지역의 국지풍 순환 및 대기오염물질 확산에 관한 연구
김유근,이화운,문윤섭,김해동,원경미,정우식,오인보 부산대학교 환경문제연구소 1997 環境硏究報 Vol.15 No.1
To investigate a horizontal windrose and the mixing height in Masan coastal area, a local atmospheric flow and the concentration of air pollutants were analyzed by abserved data from AWS, airsonde and air sampler. The land-sea breeze model and the ISCST2 model of U. S. EPA(Environmental Protection Agency) were used to predict the concentration of air pollutants such as SO2 and TSP. As a result, during spring the principal wind direction in the Masan region is mainly represented by windrose of the WNW and NW, which can be induced by land breeze and the SE and SSW of sea breeze even if weak wind speed. The mixing height during the measurement was marked with the range from 400 m(0900 LST) to 1450 m(1500 LST), and the height of an inverse layer was presented as the range from 30 m(2100 LST) to 150 m(0300 LST). It is very important to cosider the local wind field for the accurate diffusion and movement of air pollutants in coastal urban area. The atmospheric flow was simulated by the two-dimensional local wind model upon considering the orographic characteristics such as land-sea contrast, mountain valley and urban building. The result of air quality simulated by ISCST2 support that the dispersion pattern of the pollutants in that area was followed as local circulation system in coastal urban area.
고정식 교정장치에 의한 균혈증의 발생가능성에 관한 연구
임순모,안병근,김선해,박영주,한호진,이윤상 대한치과교정학회 1993 대한치과교정학회지 Vol.23 No.4
The purpose of this study was to investigate a possibility of chronic or intermittent bacteremia in patients undergoing orthodontic treatment with fixed orthodontic appliance. Orthodontic patients who had been injured by orthodontic appliances and/or suffered from gingivitis were selected. They had not taken any antibiotics for 1 month. The number of subjects were 21 including 7 males and 14 females. Blood samples of the subjects were cultured and, IgG, IgA and IgM levels in the serum were quantified. The author found following results. 1. No bacterial growth was found in 7-day culture of all the samples. 2. The immunoglobulin levels in serum were confined in normal range. 3. This study could not deny the possibility of transient bacteremia episode undergoing orthodontic treatment.
회맹장 및 대장을 침범한 장 결핵에 있어서 바륨을 이용한 방사선 이중조영촬영 소견에 대한 연구
진용현,전혜정,이용근,강철호,조성범,김윤환,박철민,차상훈,김일영,이혜경 건국대학교 의과학연구소 2002 건국의과학학술지 Vol.12 No.-
To determine the characteristic double contrast barium enema findings of ileo-cecal and colonic tuberculosis and to make differential diagnosis from other bowel inflammatory disease. Sixty-seven patients confirmed as ileo-cecal and/or colonic-tuberculosis in six hospitals were evaluated retrospectively. The diagnosis was proven by endoscopic biopsy, surgery, and clinical follow up. Nine of 67 patients were excluded because radiologic findings were normal though endocopic biopsy examinations resulted in tuberculosis. Histopathological diagnosis were madein 58 cases as follows: endoscopic biopsy(n=29), operation(n=12), follow up examination(n=14), tissue culture(n=1), laparoscopic biopsy(n=2). There were 30 men and 28 females. The mean age were 36 yrs(range:16-67), 34 patients were in the second and third decade. The distribution of lesions, morphological characteristics, mucosal changes, ulcer shape and depth, associated with other tuberculous lesion, multiplicity were retrospectively analyzed in the findngs of double contrast barim enema. The commonest clinical symptoms were abdominal pain(n=35, 60%) and diarrhea(n=18, 31%). The chest radiography revealed association of pulmonary tuberculosis in 39 cases. Tuberculous lesions of other organs except chest were present in five cases. Double contrast barium enema findings showed a thickening and irregularity of intestinal mucosal fold(n=29, 50%), bowel contraction and/or shortening(n=26, 45%). There were small, nodular, superficial ulcers in the case of ulcer depth less than 2 mm in the depth. As many as 39 cases(67%) in this series had two or more lesions in the intestinal tuberculosis. The involved segment revealed symmetrical feature(n=21, 36%). Inflammatory pseudopolypoid lesions were noted in 30 cases(52%). The ileo-cecal region was involved in 38 cases(66%). The ascending colon(n=25, 43%) was the second commonest site with or without contiguous cecal involvement. Lesions in terminal ileum, ileo-cecal valve, transverse colon, descending colon and appendix were seen in 19, 18, 18, 12 and seven cases, respectively. Among 18 cases of ileo-cecal valve lesions, there were incompetency in nine cases(16%) and wide gapping in four cases(7%). In 14 cases, tuberculous enterocolitis was diagnosed by clinical follow-up and double contrast barium enema study. 12 out of 14 cases, the findings of double contrast barium enema of tuberculous enterocolitis were normalized after anti-tuberculous medication. However, two cases showed more aggravated state than before due to inappropriate treatment. Double contrast barium enema plays an important role in the diagnosis of tuberculous enterocolitis, determines the type, site and extent of the involvement and helps in treatment guide by using sequential studies.
A Study on the Techniques of Composite Mold Structure for Hovercraft Using New Material System
Yun-Hae Kim,Clung-Won Bae,Keun-Sil Park,Sung-Youl Bae,Kyung-Man Moon,Sung- Yul Lee,Young-Doe Jo,Byung-Yun Kang 한국항해항만학회 2008 한국항해항만학회지 Vol.32 No.9
Fiber reinforced plastics (FRP) have been widely used bemuse of their high specific strength, high specific stiffness and etc. Although these kinds of FRP have various merits in applications, it has been had one of the complicated problems to manufacture their wooden mold For these reasons, the simple methods to manufacture the mold required in the FRP industries. To improve these kinds of problems, the molding system using composite materials was developed By this new manufacturing techniques and high functional FRP composite mold was built. Comparing with wooden mold, the process efficiencies of frame manufacturing process and inner mold manufacturing process were improved approximately 40% and 70%, respectively.
Molecular Cloning and Induction of β-1,3-Glucanase Gene from Nicotiana glutinosa L.
Yun, Hae Keun,Yi, so Young,Kim, Sung Uk,Son, Kwang Hee,Yu, Seung Hun,Bok, Song Hae,Choi, Doil 충남대학교 생물공학연구소 1997 생물공학연구지 Vol.5 No.-
Cloning and characterization of disease-response genes in plants could be an initial step toward understanding the complex disease resistance mechanism. To better understand the complex step, we isolated one of the pathogenesis-related proteins, β-1,3-glucanase, cDNA from a cDNA library of Nicotiana glutinosa showing systemic resistance. One clon (GN-3) was a partial cDNA of β-1,3-glucanase 800 bp in size with a 171 amino acid coding region. This clone had a 90% uncleotide homology with the β-1,3-glucanase gene of N. tabacum cv. BY4. A deduced amino acid sequence of GN-3 clones indicated a 91% identity with the β-1,3-glucanase of tobacco, 58% with that of Lycopersicon esculentum, and 51% with that of Glycine max. Northern blot analysis showed that expression of β-1,3-glucanase mRNAs was induced by TMV infection and salicylic acid treatment. In addition to that this gene was highly induced by CuSO4 and β-aminobutyric acid which are known as inducers of plant disease resistance. The possible orle of this gene expression in relation to chemical-induced plant defense responses is discussed.