• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.45 no.3
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• pp.167-172
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• 2019

Langerhans cell histiocytosis (LCH) is a rare disorder characterized by the proliferation of dendritic cells resulting in local or systemic symptoms. The clinical symptoms of patients with Langerhans cell histiocytosis depend on the site and the degree of involvement. This article describes two case histories of unifocal bony Langerhans cell histiocytosis with mandibular involvement and further discusses the appropriate management of such via a review of the literature.

• Journal of Korea Multimedia Society
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• v.25 no.10
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• pp.1457-1467
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• 2022

The relationship between film and culture is established through a shared focus on people's lives. Culture changes at different times, which makes a dynamic and complex relationship between film and culture. Understanding this relationship helps to provide better support for current filmmaking. The purpose of this study is to provide insights into the macro issue of film and culture by exploring the relationship between film theme and culture concept. To this end, we used a case study to explore the connection between themes and culture concepts in Disney's Mulan (1998, 2020) through literature and analyses of culture concepts (Chinese "imagery" and Postmodernism). The study concludes that, "Culture assemblage" and "Vision is king" have become cultural trends that influence the creation of film theme and style to a certain extent; how to balance the relationship between the core idea of film theme and the external forms is an important issue in current filmmaking. The article contributes to promote thinking about culture in film creation, and its research perspective on different cultures and histories is innovative.

• Smart Structures and Systems
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• v.30 no.6
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• pp.627-637
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• 2022

Recent years, direct displacement-based design (DDBD) procedure is proposed for the design of un-bonded posttensioned (UPT) concrete wall systems. In the DDBD procedure, the determination of the equivalent viscous damping (EVD) ratio is critical since it would influence the strength demand of the UPT wall systems. Nevertheless, the influence of EVD ratio determination of the UPT wall systems were not thoroughly evaluated. This study was aimed to investigate the influence of different EVD ratio determinations on the DDBD procedure of UPT wall systems. Case study structures with four, twelve and twenty storeys have been designed with DDBD procedure considering different EVD ratio determinations. Nonlinear time history analysis was performed to validate the design results of those UPT wall systems. And the simulation results showed that the global responses of the case study structures were influenced by the EVD ratio determination.

• Journal of the Korean Geotechnical Society
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• v.24 no.12
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• pp.113-120
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• 2008

One-dimensional site response analysis is widely used to simulate the seismic site effects. The equivalent linear analysis, which is the most widely used type of site response analysis, is essentially a linear method. The method applies constant shear modulus and damping throughout the frequency range of the input motion, ignoring the dependence of the soil response on the loading frequency. A new type of equivalent linear analysis method that can simulate the frequency dependence of the soil behavior via frequency-strain curve was developed. Various forms of frequency-strain curves were proposed, and all curves were asserted to increase the accuracy of the solution. However, its validity has not been extensively proven and the effect of the shape of the frequency-strain curve is not known. This paper used two previously proposed frequency-strain curves and three additional curves developed in this study to evaluate the accuracy of the frequency-dependent equivalent linear method and the influence of the shape of the frequency-strain curves. In the evaluation, six recordings from three case histories were used. The results of the case study indicated that the shape of the frequency-strain curve has a dominant influence on the calculated response, and that the frequency dependent analysis can enhance the accuracy of the solution. However, a curve that results in the best match for all case histories did not exist and the optimum curve varied for each case. Since the optimum frequency-strain curve can not be defined, it is recommended that a suite of curves be used in the analysis.

• Korean Journal of Head & Neck Oncology
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• v.11 no.2
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• pp.173-177
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• 1995

Multiple primary malignant neoplasms occur relatively frequently today and are important especially in the head and neck area for they usually carry a bad prognosis. Detection of a synchronous primary tumor at the time of initial work-up is crucial both for management and final outcome. The first case was a T1 hypopharyngeal cancer with a mid-esophageal second primary who complained of a huge neck node. The second case was a T3 hypopharyngeal cancer who was initially seen by the chest surgeons for a large lower esophageal tumor. The third case was a patient previously operated for stomach adenocarcinoma three years ago, who had newly developed symptoms like dysphagia and hoarseness, and was diagnosed as hypopharyngeal T3 with oropharyngeal second primary cancer. Three cases were all heavy smokers and had histories of heavy alcohol consumption. They were all treated at the same sitting by en-block resection of the involved organs and postoperative radiation therapy. The authors have recently experienced 3 cases of synchronous second primary cancers in association with hypopharyngeal cancer and a report is made.

• Tunnel and Underground Space
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• v.24 no.2
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• pp.120-130
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• 2014

Recently, a few mega projects of subsea tunneling are completed or ongoing or under planning stage all across the world. In Korea, subsea tunnels connecting to Japan and China have been considered in the past decades. At the same time, subsea tunnels connecting to domestic islands were planned with preliminary design concepts. Development and improvement of indigenous techniques regarding subsea tunneling are essential in light of current technical level in Korea and their future impact on tunneling industry. In this paper, distinct features of subsea tunnel and construction trend of subaqueous tunnels are analyzed via case studies. Also, case studies about incidents related to subsea tunneling and required techniques to secure safety are presented.

• Parasites, Hosts and Diseases
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• v.30 no.1
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• pp.53-58
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• 1992

This 54-year-old Korean coal miner soBered from continuous watery diarrhea and weight loss after corticosteroid treatment(${\beta}-methasone$, 4 mg daily for 1 week) due to hip-bone fracture in January 1991. Except for the short therapy f steroid, no other histories were contributory. The malabsorption syndrome was aggravated while the case was treated under the impression of amebiasis or intestinal tuberculosis. AIDS antibody test by EIA was negative and quantitative analysis of serum immunoglobulins was in normal ranges. Nine months after the onset of symptoms, the case was diagnosed as malabsorption syndrome caused by complected and aggravated infection by Strengyleides stercoralis, Isospora and cytomegalovirus in the small intestine, which were proved by stool examination and duodenal biopsy. His clinical course became worse even after high-dosaged and prolonged albendazole treatment for strongyloidiasis with supportive quid therapy. The patient was discharged in hopeless status in November, 1991 and died after one week at home.

• Tuberculosis and Respiratory Diseases
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• v.78 no.2
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• pp.128-132
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• 2015

Bronchopulmonary dysplasia (BPD) is related to decreased lung function throughout life. However, the pathology and radiology pattern of BPD of adults are not documented well yet. In this case report, we present BPD case of an adult monozygotic twin showing nearly identical lesions on chest computed tomography (CT). CT images showed mixed areas of ground-glass and reticular opacities in both lungs. They had common histories of pneumonias requiring mechanical ventilations in period of infants. Pulmonary function test of one patient showed a pulmonary insufficiency with airway obstruction. Pathologic findings showed bronchiolar hyperplasia and peribronchiolar fibrosis which was similar to classic BPD patients. Our twin case report might help provide distinguishing pathology and radiology pattern of an adult pulmonary sequelaes of BPD. It might be reasonable to make close follow-up for BPD patients to evaluate the long-term outcomes of BPD survivors.

• Journal of KIISE:Computer Systems and Theory
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• v.26 no.9
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• pp.1042-1054
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• 1999

공유메모리 병렬프로그램의 오류수정에서 경합의 탐지는 중요하다. 왜냐하면 경합은 잘못된 수행 결과를 초래할 뿐만 아니라, 의도하지 않은 프로그램의 비결정적인 수행을 유발하여 오류수정을 어렵게 하기 때문이다. 특히 최초경합의 탐지는 더욱 중요하다. 그 이유는 최초경합을 제거함으로써 나머지 경합들을 방지할 수도 있기 때문이다. 기존의 수행중 경합 탐지기법들은 접근별 보고방식을 기반으로 하는데, 이 기법들은 임의 공유변수에 대한 병행 쓰레드들의 모든 접근사건들을 검사하기 위해서 접근역사라는 유일한 공유정보를 이용하므로 탐지과정에 심각한 병목현상을 유발시킨다. 그러나, 최초경합 탐지를 위한 경우 이러한 병목현상은 크게 개선될 수 있다. 본 논문에서는, 각 접근사건 검사를 위해 각 쓰레드에 공유되지 않는 독립적인 접근역사를 별개로 두고, 경합을 보고하는 시점인 쓰레드 합류시점에서만 공유되는 접근역사를 이용하도록 함으로써 병목현상을 개선하여 최초경합을 탐지할 수 있는 새로운 수행중 탐지기법을 제안한다. 그러므로 본 기법은 최초경합을 보다 효율적으로 탐지할 수 있기 때문에 수행중 경합 탐지를 더욱 효율적이고 실용적으로 할 수 있다. Abstract Detecting races is important for debugging shared-memory parallel programs, because the races lead to unintended nondeterministic executions of the programs as well as erroneous result and then make debugging programs difficult. Especially, detecting the first races is more important. The reason is that the removal of the first races can make other races disappear. Most existing on-the-fly techniques to detect the races are based on per- access reporting method incurring the serious central bottleneck, because the techniques use unique shared information called access history for checking all accesses of concurrent threads to a shared variable. Such bottleneck, however, can be improved considerably in case of detecting first races. This paper presents a new on-the-fly technique which detects the first races with reduced bottleneck through checking each accesses with private access histories and finally reporting races with shared access histories. Therefore, this technique makes on-the-fly race detection more efficient and practical.

• SUVANNABHUMI
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• v.12 no.2
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• pp.53-80
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• 2020

Students of global development are often introduced to Southeast Asia by reading many of the influential authors whose ideas were derived from their experiences in the region. John Furnivall, Clifford Geertz, Benedict Anderson and James Scott have made Southeast Asia relevant to comprehending developments far beyond the region. It might even be added that others come to the region because it has also been the home to many key historical events and seminal social developments. However, when many of the best-known writings (and textbooks) of global history are examined, treatment of Southeast Asia is often scarce and in the worst cases non-existent. It is within this context that this paper will examine Southeast Asia's role in the interpretation of global history. The paper will consider the 'global history' as a historical production in order to depict the ways in which the construction of global narratives can be a reflection of the immediate needs of historians. Furthermore, the discussion will be historiographic, exhibiting the manner in which key global histories portrayed the significance of the region. Particular importance will be placed on the ways in which the region is used to present larger historical trajectories. Additionally, the paper will consider instances when Southeast Asia is either profoundly underrepresented in global narratives or misrepresented by global historians. Last, since the discussion will probe the nature of 'global history', it will also consider what the subject might look like from a Southeast Asian point of view. The paper will end by exploring the ways in which the region's history might be augmented to become visible to those who live outside or have little knowledge about it. Visual augmented reality offers great potential in many areas of education, training and heritage preservation. To draw upon augmented reality as a basic metaphor for enquiry (and methodology) means asking a different kind of question: how can a region be "augmented" to become (at least in this case) more prominent. That is, how can the region's nations, histories and cultures become augmented so that they can become the center of historical global narratives in their own right. Or, to put this in more familiar terms, how can the "autonomous voices" associated with the region make themselves heard?