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Kim, Sang-Tae,Lee, Seung-Yeon,Kim, Seung-Chul,Byun, Hye-Won,Lee, Sang-Tae,Kim, Mu-Yeal,Hong, Seok-Pyo,Chung, Young-Jae,Park, Ki-Ryong,Lee, Chung-Hee,Lee, Joong-Ku,Heo, Kyeong-In,Lee, Ji-Ye,Lee, Eun-Je National Science Museum of Korea 2011 Journal of Korean nature Vol.4 No.3
We developed the educational purpose mobile application, named "Wild Flowers of Bukhansan National Park (version 1.0)", aiming for easy identification of wild flowers for students and visitors in the park. When visitors find a flower or part of plant in the park, visitors can search for its name utilizing the pictures and characters provided in their own smartphone mobile devices or tablet PCs. The application provides pictures of wild flowers in the park and character-based searching system based on 12 diagnostic features (e.g., growth form, leaf arrangement, flower symmetry, petal color, petal number, sepal number, etc). We adopted the complete floristic survey of Chung and Lee (1962) and added species that we confirmed their distribution in the park during the development of this application. In summary, number of vascular plants in this park was estimated to be 428 taxa including 100 families, 280 genera, 327 species, 1 subspecies, 50 varieties, and 5 formas. We provided a total of 588 pictures representing 358 taxa and each taxon includes multiple pictures in many cases. Included identification quizzes can be an efficient educational tool as well as fun activity for students and visitors who are learning plant species in Korea. Our next step will include GPS function in the application for indicating visitor's location and for providing previously reported sites of the species that we interested in the map of the park. The future application which includes GPS function will be a valuable tool for the monitoring of rare plants, plant researches related to the climate changes, etc. We currently provide Korean iPhone version only, and English version and both of android versions will be serviced soon.
Insulation Coating of Fe–Si–Cr Soft Magnetic Powder by Selective Oxidation
Jae‑Young Park,Kwangsuk Park,Bosung Seo,Julien O. Fadonougbo,Tae‑Wook Na,Ki Beom Park,Hyeon‑Tae Im,Nong‑Moon Hwang,Hyung‑Ki Park 대한금속·재료학회 2022 METALS AND MATERIALS International Vol.28 No.7
This study examines the insulation coating technology of Fe–Si–Cr powder via selective oxidation annealing, which oxidizeselements selectively by controlling the oxidation potential. The study calculated the oxidation driving force of Fe, Si, andCr, and conducted a thermodynamic analysis of oxidation and reduction conditions according to temperature and oxidationpotential. Based on the results, a selective oxidation annealing was performed in an atmosphere in which Fe is reduced andonly Si and Cr are selectively oxidized. The oxidation potential was controlled through the partial pressure ratio of hydrogenand water vapor. The XPS analysis results confirmed that a Si and Cr complex oxide layer formed on the powder surfaceafter the selective oxidation annealing. Afterward, withstanding voltages were analyzed to evaluate the insulation property. Then, the withstanding voltage of the powder applying the selective oxidation annealing increased significantly comparedto that of the initial powder. Further analysis showed that the powder annealed in an air atmosphere had a significantly lowersaturation magnetic flux density than the initial powder, while the powder applying the selective oxidation annealing hadonly a slightly reduced saturation magnetic flux density.
김용진,김경재,박재복,이지현,안기성,강민모,최석문,황기석 대한내과학회 1993 대한내과학회지 Vol.45 No.4
A 60-year-old man was admitted to our hospital complaining of fever with chillness and anarexia for 12 weeks. Physical examination revealed supraclavicular lymphadenopathy and left inguinal lymphadenopathy. Abdominal CT scan showed the evidence of maked lymphadenopathy on retraperitoneal, external iliac, obturator, left inguinal, and celiac lymph nodes. A pathologic diagnosis of Ki-1(+) lymphoma was made by the biopsed supraclavicular lymph node because the node consisted of large cells with pleomorphic nuclei, scanty cytoplasm, large basophilic nucleoli, atypical vacuoli and large cells were positive for leukocyte common antigen, Ber-H2, marker, and B-cell marker.
중ㆍ고등학생들의 수학교과 호오도(好惡度)의 변화에 대한 분석
박규홍,박기양,김영국,박윤범,박혜숙,임재훈 서원대학교 교육대학원 2000 교육논총 Vol.4 No.-
In this paper we investigate and analyze the variation of secondary school student's like and dislike the school mathematics lesson. First, we investigate the reason that why students dislike mathematics in the class and we search the point of time when the students dislike mathematics in the class. Next, we investigate and analyze the variation of student's inclination to the school mathematics lesson. In this research we try the followings. 1) We analyze the variation of each level school, student's inclination to the school mathematics class, 2) We analyze the variation of student's inclination to the mathematics for each place where the school located. 3) We analyze and compare between the inclination to the mathematics lesson and to each level school. 4) We analyze and compare between the inclination to the mathematics lesson and to each factors of student's inclination From these investigation and analysis, we have the following conclusion . (1) The student's inclination to the mathematics is depend on the teacher's teaching method and on the fact that how can the mathematics lesson be composed easily. (2) The student's response was seen in the same type from the inquiry about the inclination to the mathematics lesson in the school of Seoul and small country town. This is a passing phase caused by the educational environment in Seoul and the small country town's schools is better than that of the big city or medium city. (3) The student group of the human knowledge in the general high school show the negative response for the inclination to the matheirlatics lessen compare to that of the student group of natural science in the general high school. (4) In the middle school, about half of the students dislike mathematics But such dislike rate of mathematics increased in the high school. (5) Teachers must take into consideration to the student in the first grade high school mathematics course To do this, teachers make adapt the curriculum easily for the student and must teach the mathematics to the students who can take interest in the mathematics.
서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)
김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1
In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.
정제명,왕순주,안무업,박재형,유기철,박준석,강재구,제프리 아놀드 대한응급의학회 1999 대한응급의학회지 Vol.10 No.4
Background : To assess the current level of development of emergency medicine (EM) systems in Asia. Method : Survey of EM professionals from 12 Asian countries during a 90-day period from August to November 1998. 12 EM professionals from 12 Asian countries completed the survey. All participants were physicians. 7 participants (58%) gave presentations at an international EM conference during the study period. Respondents completed a 103 question questionnaire about the status of EM specialty, academic, patient care, information and management systems and the factors influencing the future of EM in their countries. Results : 92% of respondents stated that their countries have hospital-based emergency departments (ED). More than 80% of respondents reported that their countries have EMS systems and ED systems for trauma care and patient transfer. More than 70% stated that their countries have national EM organizations, EM research, national EMS activation phone numbers, ED systems for pediatric emergency care, emergency physician (EP) training in ACLS and ATLS and peer review. More than 60% reported official recognition of EM as an independent specialty status, ED triage systems and systems for customer service. More than 50% reported EM residency training programs, EM journals and EP ability to perform rapid sequence intubation (RSI). 50% reported EP ability to perform thrombolysis for acute MI and 33% reported EP ultrasonography. 92% felt that a lack of funding posed a moderate or great obstacle to the future development of EM in their countries. Conclusions : Many essential systems of EM now exist throughout Asia. In the systems of administration and emergency medical information in many countries, there are some parts to be developed further.
엉겅퀴(Cirsium japonicum var. ussuriense KITAMURA)의 조직배양에 의한 식물체의 재분화
강호종,박상현,박기관,김재환 진주산업대학교 1993 論文集 Vol.32 No.-
To examine proper part and medium in in-vitro culture shoot formation of in-vitro Crisium japonicum var. ussurinese KITAMURA, the test was carried out. The results are as follow: The wsa good in differentiation of the plant on the medium was good in MS+BA 10.0+Ki 10.0㎎/ℓ. In the results of formation and roots formation, proper medium was MS+Ki 0.1/ℓ. The case of MS+Ki 0.1㎎/ℓ was much no of shoots, ratio of roots, no of roots, also was good on growth.
비강 및 비인두에 발생한 도립유두종과 편평상피암종의 p53단백 및 세포증식능에 관한 연구
한주호,윤기중,이재규,신대균,박근호,조향정,문형배 圓光大學校 醫科學硏究所 1996 圓光醫科學 Vol.12 No.2
The inverted papilloma and squamous cell carcinoma are common neoplasia in the sinonasal cavity and nasopharynx, but the incidence of these tumors are very low and the study on the oncogenesis or biological activity of the tumor cells are not well known. This study was designed to evaluate the oncogenic roles of the p53 gene and the proliferative activity of the tumor cells in the inflammatory polyp, inverted papilloma and squamous cell carcinoma. The experiment was carried by the immunohistochemical stains about the p53 protein, PCNA and Ki-67, histochemical stain about the AgNORs. and flow cytometric analysis about the DNA ploidy using the formalin fixed paraffin embedded tissues. The frequency of the expression of p53 protein was 0%(0/16 cases) in the inflammatory polyps, 18.8% (3/16 cases) in the inverted papillomas, and 87.5%(14/16 cases) in the squamous cell carcinomas. The labelling index(%) of the PCNA and Ki-67 was 5.3% and 3.3% in the inflammatoy polyps, 29.6% and 25.2% in the inverted papillomas, and 51.9% and 36.8% in the squamous cell carcinoma. The expression of the PCNA and Ki-67 was distributed in the periphery of the tumor islands of the inverted papilloma and was distributed in the both of center and periphery of the tumor islands of the squamous cell carcinoma. The number of nuclear AgNORs was increased in the order of inflammatory polyps (0.96), inverted papillomas(1.34) and squamous cell carcinoma(2.09). The frequency of the DNA aneuploidy was 0%(0/16 cases) in the inflammatory polyps, 18.8%(3/16 cases) in the inverted papillomas. and 12.5%(2/16 cases) in the squamous cell carcinomas. Above results indicates that the changes of the p53 gene and proliferative activity of the tumor cells are involved on the oncogenesis and the biological activity of the inverted papilloma or squamous cell carcinoma in the nasopharynx and sinonasa cavity.