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19세기 남병철 『의기집설(儀器輯說)』 혼천의 용법 분석
최홍순,김상혁,민병희,남경욱,유경한,김용기,HONG SOON CHOI,SANG HYUK KIM,BYEONG-HEE MIHN,KYOUNG-UK NAM,GEOYOUNG-HAN YOO,YONGGI KIM 한국천문학회 2024 天文學論叢 Vol.39 No.1
The armillary sphere, an astronomical observation device embodying the Orbital Heaven Theory of the Later Han Dynasty in China, holds both historical and scientific significance. It has been produced in various forms by many individuals since its inception in the era of King Sejong in the Joseon Dynasty. A prominent figure in this field was Nam Byeong-cheol (南秉哲, 1817-1863), known for his work 'Uigijipseol' (儀器輯說), published in 1859, which detailed the history, production methods, and usage of the armillary sphere. This text particularly highlights 21 applications of the armillary sphere, divided into 33 measurements, covering aspects like installation, time, and positional measurements, supplemented with explanations of spherical trigonometry. Despite numerous records of the armillary sphere's design during the Joseon Dynasty, detailed usage information remains scarce. In this study, the 33 measurements described in 'Uigijipseol' (儀器輯說) were systematically classified into six for installation, nineteen for position measurement, seven for time measurement, and one for other purposes. Additionally, the measurement methods were analyzed and organized by dividing them into the ecliptic ring, moving equatorial ring, and fixed equatorial ring of the armillary sphere. In other words, from a modern astronomical perspective, the results of schematization for each step were presented by analyzing it from the viewpoint of longitude, right ascension, and solar time. Through the analysis of Nam's armillary sphere, this study not only aims to validate the restoration model of the armillary sphere but also suggests the potential for its use in basic astronomical education based on the understanding of the 19th-century Joseon armillary sphere.
Nam-Su Lee,Jae-Ho Byun,Sang-Byung Bae,Chan-Kyu Kim,Kyu-Taeg Lee,박성규,Jong-Ho Won,Dae-Sik Hong,Hee-Sook Park 대한암학회 2004 Cancer Research and Treatment Vol.36 No.3
PURPOSE: The prognosis of patients with advanced non-small-cell lung cancer (NSCLC) is extremely poor. Many prospective randomized trials on patients with advanced NSCLC suggested systemic chemotherapy improves both the survival and quality of life. A phase II trial was conducted to evaluate the efficacy and safety profile of the combination chemotherapy of gemcitabine and cisplatin in advanced NSCLC. MATERIALS AND METHODS: Forty-four patients with locally advanced or metastatic NSCLC were enrolled. The patients received a cisplatin, 75 mg/m2, infusion over 30 minutes on days 1, followed by a gemcitabine, 1,250 mg/m2, infusion over 30 minutes on days 1 and 8 every 3 weeks. RESULTS: The median age of the patients was 64 years (range: 27~75). Forty-one patients were assessable for response and toxicity analyses. The overall response rate was 53.6%, but with no complete remissions. The median time to progression was 5.6 months (range: 1~15.4). The median survival was 14.2 months (95% confidence interval (CI), 13.8~22.5). A total of 179 cycles were administered, with a median of 4 cycles of chemotherapy, ranging from 2 to 9 cycles. The most common hematological toxicities were NCI grades 3/4 neutropenia (24%) and thrombocytopenia (7.8%). The most common non-hematological toxicity was fatigue (42.4%). There were no life-threatening toxicity or treatment related mortalities. The median duration of follow up was 9.4 months, ranging from 1.6 to 30.3 months. CONCLUSION: In this trial, the combination of gemcitabine and cisplatin showed significant activity, with acceptable and manageable toxicities as a first-line regimen for patients with advanced NSCLC. (Cancer Res Treat. 2004;36:173-177)
Sung-Hee Lee,Kyeong-Nam Oh,Sook-Nyung Rho,Bok-Hee Lee,Hyun-Joo Lee 한국식품영양과학회 2006 Preventive Nutrition and Food Science Vol.11 No.2
The object of this study was to examine whether the germanium fortified yeast administered to SD rat is accumulated in the liver and kidney. The administration doses were within 2,000 ㎎/㎏ which is the level of NOAEL (no observed adverse effect level) proved through the previous study of single/consecutive oral toxicity test. There were no significant clinical symptoms and mortality following the administration of organic germanium-fortified yeast (0, 500, 1,000, 2,000 ㎎/㎏) during the whole test period, and also no difference in the consumed amount of feed and water for each group. No significant abnormalities of hematology and blood chemistry parameters were found in all groups of organic germanium-fortified yeast (0, 500, 1,000, 2,000 ㎎/㎏). The amount of germanium accumulated in liver and kidney was 0 g/㎏ by ICP-AES method in the group of organic germanium-fortified yeast. In the positive control group of GeO₂ (150 ㎎/㎏), the amount of accumulation was shown to 3135.0 and 4277.2 g/kg in each female and male kidney and 1044.3 and 2135.8 g/㎏ in each female and male liver, respectively. Organic germanium-fortified yeast, a biosynthetic product resulting from putting germanium into yeast, did not show any clinical symptoms, blood chemical significance, and residues in kidney and liver. It could be inferred that the non-toxic amount of organic germanium-fortified yeast was up to 2,000 ㎎/㎏.
Korean Agricultural Workforce Problems and Alternative Measures
( Sang Jin Ma ),( Seung Hee Nam ) 한국국제농업개발학회 2015 韓國國際農業開發學會誌 Vol.27 No.2
As the share of agriculture in Korean economy has been decreasing since the 1970s, the Korean agricultural workforce has also declined and agricultural workers in their twenties and thirties have become scarce. Recent Korean agricultural labor productivity is stagnant in growth. Since the 1980s, Korea has been trying to secure young generation in the agriculture sector and rural areas by launching new programs such as Farm Successor Fostering Program (1981), Korea National Agricultural College (1997), and Special Agricultural Program in Agricultural Schools (2006). While each program has its own outcomes, the greying of Korean farmers is likely to continue because of less favorable public perceptions of agriculture, farm youth decrease, old farm retirement and entry, and agricultural school graduates’ scarce entry into farming. In order to solve these problems, this study suggested the following measures: activating education about agriculture; fostering selected agricultural high schools; strengthening the role of agricultural colleges in fostering agricultural workforce; linking retiring farmers and new farmers through farm corporations; launching intermediate organizations in charge of regional agricultural workforce; and supporting capital formation of young farmers.