• 대한기관식도과학회지
• /
• 제6권1호
• /
• pp.21-28
• /
• 2000

Background:Subacute necrotizing lymphadenitis or Kikuchi's disease is unknown ethiology and self-limiting process. This disease predominantly affects young women age but rarely affects pediatrics, and usually manifests as lymphadenopathy and fever. Even though this disease is self-limited, benign process, many cases are misidentified as malignant lymphoma. The purpose of this study is to report the clinicopathologic finding, radiological finding and many labolatory test and to compare with characteristics of adult patients in this disease. Meterial and Methods:We reviewed 27 pediarics patients with subacute necrotizing lymphadenitis by excision biopsy or fineneedle aspiration cytology.Result:The most common symptomes were palpation of cervical lymh node(88.9%) and fever(66.7%). The common site of the involvement was cervical lymph node. The multiple involvement was 93% and bilateral involvement was 59%. Leukopenia(52%) and elevated erythrocyte sedimentation rates(93%) appeared in abnormal laboratory data. Microscopically, the characteristic finding was the wide area of florid nuclear dusts engulfed by histiocytes and well-circumscrbed area with eosinophilic fibrinoid material. There was a striking degree ofkaryorrhexis and an absence of granulocyte with paucity of plasma cell. All patients recovered with the conservative treatment and there was no specific complication and recurrence. Conclusion : We reviewed pediatric patients with this disease. Characteristics of this disease inpediatric patients were similar to adult patients.

• 한국철학논집
• /
• 제29호
• /
• pp.153-178
• /
• 2010

본고의 핵심은 동아시아 전통 유교의 자아실현 과정과 그에 함축된 삶의 의의를 짚어보려는 것이다. 유교에서도 원시유교의 중심을 차지하는 공자와 맹자의 자아실현 단계를 검토하고 인격의 성숙과 교육적 특징을 고찰한 후, 그 현대적 의미를 도출해 본다. 유교의 창시자인 공자가 『논어』에서 학이시습(學而時習)을 언급한 이후, 그의 행적은 평생 동안 지속되는 자아실현의 과정이다. 즉, 지학(志學)-이립(而立)-불혹(不惑)-지천명(知天命)-이순(耳順)-종심(從心)에 이르는 자아실현 단계는 삶의 온축(蘊蓄)인 동시에 인생의 깨달음을 심도 있게 보여준다. 이는 삶의 과정이 질적으로 승화하고 있다는 점과 평생에 걸쳐 여섯 번이나 주요한 자기 변화 과정을 거치면서 철저한 자아실현의 능동성과 교육 및 학습의 중요성을 깨우쳐 주고 있다. 공자를 사숙한 맹자에게서도 인격성숙은 이와 유사한 패턴으로 이어지는데, 맹자의 자아구현 단계는 그의 철학에 근거한 심학(心學)적 특성이 짙게 배어 있다. 이는 선인(善人)-신인(信人)-미인(美人)-대인(大人)-성인(聖人)-신인(神人)으로 표출되는데, 이런 여섯 단계의 자아성숙 과정은 평생 동안 완벽한 인격을 꿈꾸는 교육과 학습의 모델이다. 공자와 맹자의 자아실현관은 내면적으로는 자기단련이고 외면적으로는 인간의 전형(典型)을 드러낸다. 그것은 유교가 지향하는 수기치인(修己治人)의 유기체적 이념을 수행하는 과정이다. 요컨대, '사람임'에서 '사람됨'을 거쳐 '사람다움'을 다지는 삶의 예술이다.

• 한국응용약물학회:학술대회논문집
• /
• 한국응용약물학회 2004년도 Annual Meeting of the Korean Society ofApplied Pharmacology
• /
• pp.18-34
• /
• 2004

This paper will review data obtained primarily from our preclinical investigations that show that exposure to stress has a significant impact on drug taking. Stress increases reward associated with psychomotor stimulants, possibly through a process similar to sensitization, and a growing clinical literature indicates that there is also a link between substance abuse and stress in human addicts. One explanation for the high concordance between stress-related disorders and drug addiction is the self-medication hypothesis, which suggests that a dually-diagnosed person often uses the abused substance to cope with tension associated with life stressors or to relieve symptoms of anxiety and depression resulting from a traumatic event. However, another characteristic of drug self-administration is that drug delivery and its subsequent effects on the HPA axis are under the direct control of the individual. This controlled activation of the HPA axis may result in the production of an internal state of arousal or stimulation that is actually sought by the individual (i.e., the sensation-seeking hypothesis). During abstinence, however, exposure to stressors or drug-associated cues can stimulate the HP A axis to remind the individual about the effects of the abused substance, thus producing craving and promoting relapse. Stress reduction, either alone or in combination with pharmacotherapies targeting the HPA axis may prove beneficial in reducing cravings and promoting abstinence in individuals seeking treatment for addiction. Of primary importance is to reduce the impact of cocaine-associated environmental stimuli on the HPA axis so that they no longer function as triggers for relapse.

• 대한산업공학회지
• /
• 제28권4호
• /
• pp.360-367
• /
• 2002

The machine-part group formation is to group the sets of parts having similar processing requirements into part families, and the sets of machines needed to process a particular part family into machine cells. The purpose of this study is to develop a two-phase machine-part group formation algorithm based on Self-Organizing Maps (SOM). In phase I, it forms machine cells from the machine-part incidence matrix by means of SOM whose output layer is one-dimension and the number of output nodes is the twice as many as the number of input nodes in order to spread out the input vectors. In phase II, it generates part families which are assigned to machine cells by means of machine ratio related with processing part and it gives machine-part group formation. The proposed algorithm performs remarkably well in comparison with many well-known algorithms for the machine-part group formation problems.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 2006년도 제37회 하계학술대회 논문집 C
• /
• pp.1422-1423
• /
• 2006

In our study, the PTFE nozzle ablation in the high-voltage self-blast type $SF_6$ gas circuit breaker was investigated. The test circuit breaker has the structure that the pin electrode is moving and the pressure reservoir volume and the dimension is almost same as commercial 145kv 40kA circuit breaker for similar result in real circuit breaker. The variation of current and arcing time was the range of $36kA_{rms}$(symmetry) - $40kA_{rms}$(asymmetry) and 10-16 ms. From the measured data the tendecy of the mass loss of the nozzle to current load and arc energy was estimated. In this process, the distance from the arc to nozzle(PTFE) surface, area which was exposed to arc and stroke contour was considered. These results will be used to enhance the accuracy of the computational fluid dynamics analysis in circuit breaker and estimate the residual life time of a circuit breaker.

• 무역학회지
• /
• 제44권3호
• /
• pp.85-104
• /
• 2019

As exporting countries are limited compared to the export market of civilian industries, an approach should be preceded by a comprehensive evaluation of the purchasing availability of exportable markets and the status of potential competitive markets, as well as an analysis of the technology related to weapons systems. Based on the case of K9 self-propelled howitzers, a leading overseas export weapons system, this research was conducted to clarify the process of selecting the export market for Korean defense products and to verify it using a survey of weapons systems experts. In particular, this study specifically suggested the methodology needed to select the final exportable market through the analysis procedures such as competition and similar weapons systems, key performance identification, and identification of export-oriented markets, while considering the characteristics of the Defense Industrial Products. Based on these analysis results, the government proposed a method of selecting a major export market to enhance the possibility of weapons exports by domestic defense companies. Therefore, the study results can be used as a basis for objectively assessing the priorities for exportable markets, considering the possibility of exporting weapons systems that are under research and development or will be improved in the future.

• 반도체디스플레이기술학회지
• /
• 제22권4호
• /
• pp.124-130
• /
• 2023

Recently, fan out wafer level packaging, which enables high integration, miniaturization, and low cost, is being rapidly applied in the semiconductor industry. In particular, FOWLP is attracting attention in the mobile and Internet of Things fields, and is recognized as a core technology that will lead to technological advancements such as 5G, self-driving cars, and artificial intelligence in the future. However, as chip density and package size within the package increase, FOWLP warpage is emerging as a major problem. These problems have a direct impact on the reliability and electrical performance of semiconductor products, and in particular, cause defects such as vacuum leakage in the manufacturing process or lack of focus in the photolithography process, so technical demands for solving them are increasing. In this paper, warpage simulation according to the thickness of FOWLP material was performed using finite element analysis. The thickness range was based on the history of similar packages, and as a factor causing warpage, the curing temperature of the materials undergoing the curing process was applied and the difference in deformation due to the difference in thermal expansion coefficient between materials was used. At this time, the stacking order was reflected to reproduce warpage behavior similar to reality. After performing finite element analysis, the influence of each variable on causing warpage was defined, and based on this, it was confirmed that warpage was controlled as intended through design modifications.

• 디자인학연구
• /
• 제12권3호
• /
• pp.203-212
• /
• 1999

본 연구는 지방 문화재 특성화 사업의 일환으로 안동지방 전통문화재인 하회마을 ' 하회별신굿' 탈의 캐릭터사업계획에 따른 시각화 작업을 안동 MBC방송국으로부터 의뢰 받고 1998년 6월 1일부터 8월 20일 까지 약 3개월간의 작업과정과 작업결과에 대한 것을 기술한 것이다. 또한 본 논문에는 작업과정 중 기초적인 예비 조사단계에서 자료수집 및 분석과정과 본격적인 아트워크과정, 그리고 최종적인 시각형태를 수록하였고, 향후 각 지방자치단체에서 본 프로젝트와 유사한 전통문화재 캐릭터사업의 시각화작업을 중심으로 그 문제점과 고려해야할 사항들을 요약해서 결론으로 했다.

• International Journal of Costume and Fashion
• /
• 제9권1호
• /
• pp.1-14
• /
• 2009

This study is intended to examine the modernization of Chinese costumes through historical events, and to analyze the characteristics of the costume modernization process. The modernization of Chinese costumes appears to have begun with the Opium Wars, and the Nanjing Treaty(1842), the Beijing Treaty(1860) and the official residence of western people in Chinese territory. Afterwards, in order to initiate change, the Chinese people themselves implemented the Westernization movement(1861-94), placing an emphasis on the westernization of external elements such as technology and form, but aspects such as costume, deeply saturated in their traditions, do not appear to have changed significantly. Despite self-empowering movements such as these, as western forces diffused deeper into the Chinese mainland, neo-intellectuals formed the axis of a revolutionary movement. A major example can be found in the Xinhai Revolution(1911) revolution, which forbade the binding of feet and shaving of frontal hair and partially implemented western formal dress. Through these factors, the modernization process of Chinese costume demonstrates characteristics of an adherence to traditional dress and partial acceptance of western attire. Through this, we may understand the modern costumes of China, which adhered more to tradition than Japan, which pursued western costumes actively within a similar period, and Korea, which rushed modernization due to Japanese authority.

• 한국수학교육학회지시리즈A:수학교육
• /
• 제53권4호
• /
• pp.479-492
• /
• 2014

According to Krutetskii, the education of mathematically gifted students must be focused on the improvement of creative mathematical ability and the mathematically gifted students need to experience the research process like mathematician. Independent study is highly encouraged as the self-directed activity of highest level in the learning process which is similar to research process used by experts. We conducted independent study as a viable differentiation technique for gifted middle school students in the 3rd grade, which participated in mentorship program for 10 months. Based on the data through the research process, interview with a study participant and his parents, and his blog, we analyzed mathematical behavior characteristics of a study participant. This behavior characteristics are not found in all mathematically gifted students. But through this case study, we understand mathematically gifted students better and furthermore obtain the message for the selection and education of the mathematically gifted students and for the effective method of running mentorship program particularly.