• Journal of Chest Surgery
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• v.47 no.6
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• pp.566-568
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• 2014

A 51-year-old woman visited our hospital with massive hemoptysis. She had suffered from recurrent hemoptysis for five years and had undergone bronchial artery embolization many times. The patient had a history of pulmonary tuberculosis and bronchiectasis. Chest radiography showed consolidation around the nodule in the lateral basal segment of the right lower lobe. We successfully performed a right lower lobectomy. The histological study of the resected specimen showed a vegetable foreign body and clumps of Actinomyces, indicating actinomycosis, which was suggested to be the cause of the hemoptysis. This was a very rare case of hemoptysis caused by a vegetable foreign body and actinomycosis.

• Proceedings of the Korean Society of Crop Science Conference
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• 2002.05a
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• pp.63-68
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• 2002

Quality of industrial crops is considered to have three categories : the nutritional value, functional value, shape and appearance. The frame of this article are composed of five section : major oil crops, sesame, perilla, peanut, rape seed, and medicinals. The authors are reviewed and discussed on the current status and prospects of the quality evaluation and researches in industrial crops to provide and refers the condensed informations on the their quality.

• Journal of Applied Biological Chemistry
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• v.48 no.4
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• pp.198-201
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• 2005

Two known isoquinoline alkaloids, (+)-chelidonine (1) and (-)-stylopine (2), were isolated from $CHCl_3$-soluble fraction of whole plants of Chelidonium majus L. var. asiaticum, and their structures were identified by spectroscopic methods and X-ray crystallographic analysis. Two isolates (1 and 2) were examined for their in vitro cytotoxic activities against five human cancer cell lines including DU-145 (prostate), MCF (breast), A549 (lung), HePG2 (liver), and HT-29 (colon) by sulphorhodamine B (SRB) assay.

• Journal of Korean Neurosurgical Society
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• v.40 no.1
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• pp.35-37
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• 2006

We present a case of acute spinal epidural hematoma[EDH] following unilateral laminectomy for bilateral decompression[ULBD]. A 45-year-old male presented with severe multi-level spinal stenosis underwent ULBD on the left side at the L2-3 and L3-4 level. Five hours after operation, paraparesis developed along with severe bilateral buttock pain. The CT scan showed an acute spinal EDH at the L2-3 level. The acute spinal EDH was successfully decompressed after emergency decompressive surgery with performing an additional laminectomy on the contralateral side at the L2-3 level. Although ULBD is an effective minimally invasive surgical technique for treating spinal stenosis, the possibility of acute spinal EDH should be kept in mind, as happened in our case.

• Journal of Korea Ship Safrty Technology Authority
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• s.21
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• pp.51-65
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• 2006

The aim of this study is to supply the basic field data and precautionary measures that was obtained from analys of troubles and failures in the main engine and its accessories of fishing vessels. In this paper, we analyzed the accidents of main engines and their accessories in fishing vessels for five years from 2000 to 2004, according to engine system, type of fishing vessels and engine power. Finally, we propose the methods to reduces the accidents of main engines and rheir accessories in fishing vessels.

• International Journal of Control, Automation, and Systems
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• v.5 no.5
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• pp.570-576
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• 2007

This paper presents a hexagon-based Q-leaning algorithm to find a hidden targer object with multiple robots. An experimental environment was designed with five small mobile robots, obstacles, and a target object. Robots went in search of a target object while navigating in a hallway where obstacles were strategically placed. This experiment employed two control algorithms: an area-based action making (ABAM) process to determine the next action of the robots and hexagon-based Q-learning to enhance the area-based action making process.

• Korean Journal of Child Studies
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• v.26 no.3
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• pp.97-110
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• 2005

This study of the effectiveness of various art programs took place in Gwangju with asample of 60 four- to five-year-old children from three kindergartens. The children were assigned to one of three experimental groups : 20 children in the picture book group(experimental group 1), 20 children in the famous paintings group(experimental group 2), and 20 children in the traditional group(control group). Data were analyzed by ANCOVA using the scores of the pre-test as covariance. Results showed that the picture book and the famous painting art programs affected young children's art ability more positively than the traditional art program. The picture book art program showed particularly high educational effectiveness.

• Korean Journal of Child Studies
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• v.31 no.1
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• pp.35-46
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• 2010

This study analyzed variables that affect children's leadership qualities. The subjects were 400 five-year-old children and their mothers living in the Seoul metropolitan area. The instruments used in this study were the Young Children's Leadership Scale (Kim, 2006), Temperament(Hong, 2008), Peer Interaction (Choi, 2004), Mother's Verbal Control Modes(Do, 1997), and the HOME instrument (Rhee and Jang, 1982). The data collected was analyzed by descriptive statistics, Pearson's correlation, and multiple regression analysis. Our results indicated that (a) girls' scores on leadership were higher than those of boys. (b) Boys' leadership qualities were related to children's temperament, peer relationship, maternal verbal control modes, and home environment. (c) Girls' leadership qualities were related to children's temperament, peer relationship, and home environment. (d) In particular, it was noted that children's temperament (in terms of their sensitivity/endurance) was the strongest predictor for leadership qualities in both boys and girls.

• IEMEK Journal of Embedded Systems and Applications
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• v.7 no.5
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• pp.247-253
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• 2012

This paper presents sensor network based autonomous vehicle system using a proposed image processing algorithm. The proposed image processing algorithm consists of pre-processing and five-stage image processing: coordinate calculation, driving area decision, line segment calculation, steeling decision, and acceleration decision. We evaluate the performance of the proposed algorithm on both straight road and curved road. Experimental results indicate that the proposed algorithm works well for autonomous vehicles. However, control accuracy of the proposed algorithm decreases as speed is increasing.

• YAKHAK HOEJI
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• v.33 no.1
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• pp.46-53
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• 1989

The extractable organic matter was extraced from airborne particulates collected in Seoul during 1986. It was fractionated to several fracrtions and mutagenicities of them were tested in Salmonella thyphimurium TA98 by Ames method. The neutral fraction showed the highest indirect acting mutagenicity while the highest direct acting mutagenicity was observed in the acidic fraction. Indirect acting mutagenicity of airborne particulate was attributed to its neutral fraction about 88% in average, to acidic about 10% in average and to basic fraction about 2% in average. Direct acting mutagenicity of airborne particulate was attributed to its neutral fraction about 70%, to acidic fraction about 29% and to basic fraction about 1%. Among five subfractions of neutral fraction, the proportion of mutagenicity of polynuclear aromatic hydrocarbon subfraction was 13.2% in indirect acting mutagenicity and 5.0% in direct acting mutagenicity.