• Korean Journal of Radiology
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• 제2권2호
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• pp.87-96
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• 2001

The radiologic and clinical findings of foreign bodies in the chest of children are well recognized. Foreign bodies in adults are infrequent, however, and the radiologic findings of these unusual circumstances have rarely been described. We classified various thoracic foreign bodies into three types according to their cause: Type I, Aspiration, Type II, Trauma or Accident; Type III, Iatrogenic. This pictorial essay will illustrate the radiologic findings and consequences of thoracic foreign bodies in adults, which have rarely been described in the radiologic literature. The clinical significance of thoracic foreign bodies will be also be discussed.

• International Journal of Fluid Machinery and Systems
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• 제2권3호
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• pp.239-247
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• 2009

Sewage pumps are designed with a wide flow channel by, for example, sacrificing some efficiency and reducing the number of blades, in order to prevent plugging with foreign bodies. However, the behavior of foreign bodies which actually flow into a pump is extremely complex, and there are questions about whether the presumed foreign bodies will actually pass through. This paper proposes a new type of sewage pump impeller designed to further improve pump efficiency and performance in passing foreign bodies. This sewage pump impeller has a structure in which the suction flow channel of a closed type non-clog pump is wound in a helical spiral. The focus of this research was to investigate pump performance and internal flow in this single blade sewage pump impeller. The results clearly indicated the following facts: The developed sewage pump impeller exhibits high efficiency over a wide range of flow rates; internal flow of the pump is very complicated; and the internal flow state varies greatly when the flow rate changes.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 춘계학술대회 논문집
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• pp.151-154
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• 2007

THE DOMESTIC AND FOREIGN OF THE COUNTRY RAILROAD ACCIDENT ANALYSIS IT LED FROM THE PAPER WHICH IT SEES AND IT ANALYZED A TRAIN COLLISION/DERAILED ACCIDENT RISK FIXED QUANTITY. THE TRAIN ACCIDENT OCCURS DIRECT AND LATENT DAMAGE. IT CLASSIFIES THE ACCIDENT WHICH 5 YEAR FOR OCCURS RECENTLY DOMESTIC AND FOREIGN OF THE COUNTRY WITH A TYPE FROM THE RESEARCH WHICH IT SEES. IT TRIED TO ANALYZE THE DAMAGE SIZE AGAINST A TRAIN COLLISION/DERAILED ACCIDENT WITH DANGEROUS QUOTIENT.

• 대한안전경영과학회지
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• 제25권2호
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• pp.39-48
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• 2023

Recently, the crisis of demographic extinction is rising in Korea more than any other country, and it is difficult for industrial sites to maintain without 'foreign workers'. Industrial accidents and accident deaths of foreign workers account for 7.6% and 12.3% of the total, through an in-depth analysis of fatal accidents in the manufacturing industry, differences and similarities between fatal accidents of foreign workers and all fatal accidents were confirmed in terms of occurrence type, workplace size, length of service, employment type, etc. In this study, customized countermeasures were found.

• 대한기관식도과학회지
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• 제4권2호
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• pp.254-257
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• 1998

Esophageal foreign body are not uncommon problems in the otolaryngologic field. Esophageal foreign body may cause severe complications such as esophageal ulceration, esophageal perforation, periesophagitis, tracheo-esophageal fistula, mediastinitis, pneumothorax pyothorax according to the kinds, shape, size, duration of lodgement of foreign body. The majority of esophageal foreign U which lodge in the esophagus can be removed endoscopically, but the following type of foreign body may require removal by external route. 1. an impacted foreign body 2. a foreign body producing esophagitis after unsuccessful attempts at removal through the esopahgoscope 3. a periesophageal abscess with a foreign body lodging in the abscess itself. Recently, we experienced a case of esophageal foreign body (fish bone) which penetrate the cervical esophageal wall and formed retropharyngeal abscess in 54-year old female. The foreign body are successfully removed and abscess was drained by external route through the lat neck.

• 동아시아경상학회지
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• 제7권3호
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• pp.63-73
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• 2019

Purposes - In this research, we look over and investigate associations between shopping items and the demographics of foreign tourists in South Korea. The related seven variables are gender, age, occupations, country of residence, visit month, visit purpose and trip type. In addition, we can graph twenty-one shopping items in association with the demographics of foreign tourists by computing their dissimilarity or similarity on two dimension planes granting that the association exists between the underlying variables. Research design and methodology - This research is performed by Ministry of Culture and Tourism in 2017 and investigated 13,200 foreign tourists from 20 countries. For analyzing the detailed relationships between shopping items and the demographics of foreign tourists, we take advantage of both independent test and correspondence analysis as key statistical techniques. Results - The findings show that shopping items which foreign tourists purchase are closely associated with the three different demographics variables such as country of residence, tour type and visit purpose by monitoring significant p-value of chi-squared statistic Conclusions - This study suggests Ministry of Culture, Sports and Tourism must explore ways toward tourism infrastructure such as global marketing, municipality strategy for attracting foreign tourists, development of diverse shopping items and services and so on.

• 대한기관식도과학회지
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• 제5권1호
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• pp.73-77
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• 1999

The risk of foreign body by small button-disc battery in children has been increasing because the batteries are widely used in electronic device and plaything and easily contact with children. Foreign body of mercury type button-disc battery, when lodged in the esophagus, leak a caustic solution which causes a rapid necrosis of esophageal mucosa. So it should be removed immediately when the radiologic diagnosis is made. We experienced a case of esophageal foreign body by mercuric disc battery in a 14-month-old male. This case will be discussed with literature review.

• 한국작물학회지
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• 제53권2호
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• pp.203-216
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• 2008

본 시험은 국내 육성 5품종, 국외 도입 61품종 등 향미자원 66품종 및 국내에서 재배면적이 넓은 재래종 14품종을 비향미자원의 이화학적 특성을 평가하고자 아밀로스함량, 단백질함량, 알칼리붕괴도(ADV) 및 호화점도(RVA)등을 분석 향후 기능성 및 다양한 향미 품종의 육성에 필요한 기초자료를 제공하고자 실시하였다. 그 결과를 요약하면 다음과 같다. 1. 국내 육성향미 자원(18.1%) 및 국내 다면적 재래종(19.0%) 각각의 저아밀로스 자원을 제외하면 평균 아밀로스함량이 비슷하였으며, 외국에서 도입한 인디카형(25.6%) 및 자포니카형(25.0%) 향미자원의 평균 아밀로스함량보다 매우 낮은 경향을 보였다. 2. 국내에서 육성한 통일계와 자포니카형 향미품종 각각의 평균 단백질함량은 7.6%와 6.4%이었고 인디카형 도입 향미자원 및 자포니카형 도입 향미자원의 평균 단백질함량은 각각 7.6%와 7.0%이었으며, 국내 다면적 재래자원(자포니카형)들의 평균 단백질함량은 5.6%이었다. 자포니카형의 품종들이 인디카형 자원에 비해 다소 낮은 단백질함량을 나타내었으며, 외국에서 도입한 향미자원의 경우 단백질함량의 변이 폭이 넓었다. 3. 국내에서 육성한 향미 자원 중 통일계 품종의 평균 알칼리붕괴도는 5.0이었고 자포니카형 품종의 평균 알칼리붕괴도는 6.0이었다. 인디카형 도입 향미자원의 평균 알칼리붕괴도는 4.3이었고 자포니카형 도입 향미자원의 평균 알칼리붕괴도는 5.1이었다. 국내 다면적 재래자원(자포니카형)의 평균알칼리붕괴도는 6.0이었다. 알칼리붕괴도 값은 자포니카형 > 통일계 > 인디카형의 순서로 낮았으며 도입 향미자원의 알칼리붕괴도 값의 분포가 국내 육성 향미 자원이나 국내 재래자원보다 넓었으며 평균값도 낮게 보였다. 4. Amylogram의 전체적인 양상을 살펴보면, 전체 자원의 최고점도, 최저점도, 최종점도는 국내육성 향미 자원 중 통일계 품종 > 국내 다면적 재래자원(자포니카형) >국내 육성 자포니카형 향미자원 > 인디카형 도입 향미자원 > 자포니카형 도입 향미자원 순으로 낮은 평균값을 보였다. 또한 국내외 향미 자원 및 일반 벼의 생태형(ecotype)에 따라 아밀로그램의 양상이 뚜렷하게 차이를 나타내었으며, 배유의 amylose와 amylopectin의 구성조합의 차이에 따른 메벼, 찰벼, 중간찰벼의 아밀로그램의 양상이 구분이 가능하였으며, 특히 찰벼의 경우 메벼나 자포니카형에 비해 뚜렷한 차이를 보였다.

• Advances in pediatric surgery
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• 제20권1호
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• pp.12-16
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• 2014

Foreign body ingestion is a common problem among paediatric populations. Most of the ingested foreign bodies spontaneously pass through the gastrointestinal tract, but approximately less then 10% of them remain without being discharged, and trigger complications. Therefore, proper evaluation and treatment according to the situation is required. In this study, clinical progress and complications were analyzed according to the clinical features and treatment in children who ingested foreign bodies. Among pediatric patients under 18 who were admitted to Chonnam National University Hospital after ingesting foreign bodies between January 2008 to June 2012, only the patients who had their foreign body in the gastrointestinal tract were included in this study. Based on medical records, age, type of foreign body, time spent till admission, and whether the endoscopy was done or not, complication were researched retrospectively. According to symptoms and plain abdomen X-ray findings, treatment was chosen and conducted among endoscopy, observation and emergency operation. Among 273 patients, 9 (3.3%) of them had surgical removal. Seven (2.6%) of them had an emergency operation on the day of admission, and the rest 2 (0.7%) had operation during observation. Removal through initial endoscopic approach was tried in 157 (57.5%) patients. Eleven (70.8%) of them had their foreign body removed at the initial trial, and 5 (4.9%) of them at the second trial. Among 109, who were on observation status, 9 (8.3%) of them needed endoscopic removal, and 2 (1.8%) of them suffered from surgical removal. It is thought to be better to approach slowly considering the type, size and symptoms in foreign body ingestion of pediatric patients, rather than immediate and invasive removal.

• 복식
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• 제60권8호
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• pp.118-131
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• 2010

The purpose of this study was to identify the differences in cosmetics brand selection by product type, and the differences in ambivalent cosmetics consumption attitude by ambivalent clothing consumption attitude. The subjects of the study were females aged 20 plus, living in Seoul and Gyeonggi Province between January and February 2008, and 427 questionnaires were used for analysis. For data analysis SPSS 17.0 statistical program was used, and principal component analysis, paired t-test and t-test were conducted. The results and conclusions of this study are as follows: firstly, the differences in cosmetics brand selection by product type were investigated. The results showed that domestic high-priced brands of skincare products were selected most often, that foreign high-priced brands of base products and color products were selected most frequently, that domestic low-and medium-priced brands of hair products were selected most often, and that foreign low-and medium-priced brands of body products were selected most frequently. In particular, foreign high-priced brands of color products were most favored, followed by domestic low-and medium-priced brands. The subjects selected foreign high-priced brands, which are the most expensive, and domestic low-and medium-priced brands, which are the least expensive, at the same time. They displayed ambivalent consumption patterns. Secondly, the differences in cosmetics consumption attitude by ambivalent clothing consumption attitude were examined. Groups high on ambivalent clothing consumption attitude had a higher cosmetics consumption attitude than groups low on ambivalent clothing consumption attitude.