• Journal of Korean Institute of Industrial Engineers
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• v.37 no.1
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• pp.74-82
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• 2011

The Bass model is a cornerstone in diffusion theory which is used for forecasting demand of durables or new services. Three well-known estimation methods for parameters of the Bass model are Ordinary Least Square (OLS), Maximum Likelihood Estimator (MLE), Nonlinear Least Square (NLS). In this paper, a hybrid method incorporating OLS and NLS is presented and it's performance is analyzed and compared with OLS and NLS by using simulation data and empirical data. The results show that NLS has the best performance in terms of accuracy and our hybrid method has the best performance in terms of stability. Specifically, hybrid method has better performance with less data. This result means much in practical aspect because the avaliable data is little when a diffusion model is used for forecasting demand of a new product.

• Journal of the Korea Furniture Society
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• v.26 no.3
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• pp.267-273
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• 2015

This study is a review on the relationship between furniture purchasers and producers in the Joseon period. Understanding the relationships in our traditional spirit and the Joseon furniture that reflects a aesthetic sense is a meaningful work. Joseon was to build an ideal country which put emphasis on the order and harmony through Theory of 'Yeak' as the confucianism nation. Human aesthetics, which emphasis on the spiritual value by confirmity to nature and forcus on the relaxed, deficient personality rather than completeness was established as the central formative consciousness of the Joseon Dynasty. The nature of things in the confucian scholar prior to the representations of things is expressed in the form of master craftsman's skill and soul. Formative consciousness of the confucian scholar is to realize ideals by communciation and interchange with master craftsman's soul in the form of the Joseon furniture. The beauty of restraint and brevity in the Joseon Dynasty furniture includes meanings and procedures of art work. It implies an orderer's purpose of production and a producer's products. Understanding the spirit of times in the production becomes the cornerstone capable of getting closer to the furniture ultimate proper function. These problems have a very close relationship with the problems of modern people's commnuication. We expect an even higher growth of the furniture by achieving more improved communication based on the consumer's great insight and the producer's passion.

• Journal of Korean Library and Information Science Society
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• v.47 no.3
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• pp.115-137
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• 2016

The research objectives of this study are twofold: to analyze affective dispositions in both 'Standards for the 21st-Century Learner(AASL, 2007)' and 'Framework for Information Literacy for Higher Education(ACRL, 2015)'; and to look for implications from the two documents in information literacy instruction(ILI). A total of 18 and 38 affective dispositions were found in AASL(2007) and ACRL(2015) documents respectively. This study mainly discusses sequencing affective objectives and assessment techniques for the ILI. The affective dispositions found from the two documents will be a cornerstone of ILI in K-20.

• Journal of Chest Surgery
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• v.45 no.6
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• pp.390-395
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• 2012

Background: Conventional open repair is a suboptimal therapy for blunt traumatic aortic injury (BTAI) due to the high postoperative mortality and morbidity rates. Recent advances in the thoracic endovascular repair technique may improve outcomes so that it becomes an attractive therapeutic option. Materials and Methods: From August 2003 to March 2012, 21 patients (mean age, 45.81 years) with BTAI were admitted to our institution. Of these, 18 cases (open repair in 11 patients and endovascular repair in 7 patients) were retrospectively reviewed and the early perioperative results of the two groups were compared. Results: Although not statistically significant, there was a trend toward the reduction of mortality in the endovascular repair group (18.2% vs. 0%). There were no cases of paraplegia or endoleak. Statistically significant reductions in heparin dosage, blood loss, and transfusion amounts during the operations and in procedure duration were observed. Conclusion: Compared with open repair, endovascular repair can be performed with favorable mortality and morbidity rates. However, relatively younger patients who have acute aortic arch angulation and a small aortic diameter may be a therapeutic challenge. Improvements in graft design, delivery sheaths, and graft durability are the cornerstone of successful endovascular repair.

• Asian Pacific Journal of Cancer Prevention
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• v.16 no.7
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• pp.2613-2617
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• 2015

Radiation induced lung injury has long been considered a treatment limiting factor for patients requiring thoracic radiation. This radiation induced lung injury happens early as well as late. Radiation induced lung injury can occur in two phases viz. early (< 6 months) when it is called radiation pneumonitis and late (>6 months) when it is called radiation induced lung fibrosis. There are multiple factors that can be patient, disease or treatment related that predict the incidence and severity of radiation pneumonitis. Radiation induced damage to the type I pneumocytes is the triggering factor to initiate such reactions. Over the years, radiation therapy has witnessed a paradigm shift in radiation planning and delivery and successfully reduced the incidence of lung injury. Radiation pneumonitis is usually a diagnosis of exclusion. Steroids, ACE inhibitors and pentoxyphylline constitute the cornerstone of therapy. Radiation induced lung fibrosis is another challenging aspect. The pathophysiology of radiation fibrosis includes continuing inflammation and microvascular changes due to pro-angiogenic and profibrogenic stimuli resembling those in adult bronchiectasis. General supportive management, mobilization of airway secretions, anti-inflammatory therapy and management of acute exacerbations remains the treatment option. Radiation induced lung injury is an inevitable accompaniment of thoracic radiation.

• Journal of the Microelectronics and Packaging Society
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• v.27 no.3
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• pp.9-19
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• 2020

Transferring of functional nanofilms onto target substrates is a cornerstone to developing nanofilm-based nextgeneration applications. In this work, we provide a brief review of recent advances on nanofilm transfer methods by categorizing them into the following three methods: wet-etching transfer, electrochemical delamination, and mechanical transfer. Furthermore, the mechanical transfer method, which is regarded as a promising technology owing to its facile, substrate recyclable, and widely applicable process, is overviewed by focusing on fracture mechanics approaches. Finally, the perspectives and challenges for future development of the mechanical transfer method are discussed.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2015.05a
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• pp.237-240
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• 2015

Individual's body is different depending on the body type or growing environment. In particular, recent changes in the way the movement toward a healthy 100-year-old range. But the purpose of the exercise, each person, gender, age, physical condition and how this movement should be applied according to analysis, to be studied. In this paper, we share information through this exercide method by online, and provide personalized workout, and an algorithm for research analysis. This study will be the cornerstone of research by combining biotechnology and IT to contribute to the health of the people 100 years old.

• Journal of The Korean Digital Architecture Interior Association
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• v.11 no.2
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• pp.41-50
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• 2011

Skeptical responses to urban design based on the Physical Planning theory assuming the existence of social agreement and the absolute authorities of planners bring about alternatives such as Participatory Planning and Community Design derived from Harbermas' Communicative Rationality. But the normative contentions do not progress any more to the stage of presenting practical strategies. This is the cause why there should be systematic approaches to reveal the relationships among various concepts or variables. With regard to the Community Design this study intends to take a statistical approach to find relationship between project scale and its accomplishment. The hypothesis that the smaller scale of project begets the better outcomes was tested to be rejected as a result of the analysis of variance. But the result also shows that appropriate density in relatively large area makes residents' expected satisfaction high. Although this discovery has its own meaning the tryout is anticipated to laying the cornerstone of quantitative analyses in the following studies.

• Tuberculosis and Respiratory Diseases
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• v.52 no.6
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• pp.651-656
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• 2002

Hyperimmunoglobulin E syndrome, otherwise known as Job's syndrome, is an immune disorder characterized by an abnormal elevation of the circulating immunoglobulin E level, and recurrent infections of the skin and sinopulmonary tract. The syndrome has various pulmonary features, e.g., pneumonia, pneumatocele, pneumothorax, lung abscesses and empyema. We report a case of hyperimmunoglobulin E syndrome, with various respiratory clinical manifestation. Medical therapy, including prophylactic antibiotics, has been the cornerstone for the treatment of hyperimmunoglobulin E syndrome. Even if surgical intervention is required, minimal pulmonary parenchymal resection is recommended.

• Journal of Arbitration Studies
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• v.24 no.3
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• pp.47-77
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• 2014

Ever since its introduction in the 1927 ICC Arbitration Rules, scrutiny of awards by the ICC Court has been a cornerstone feature of ICC arbitration. Most players involved in the arbitral process are likely to concede that a certain level of review of arbitral awards is both desirable and beneficial. Indeed, proponents among the users are frequently influenced in their choice of the ICC as the administering arbitral institution, based on their strong conviction that time and money invested in the resolution of a dispute is ultimately only well spent if awards are voluntarily complied with or at least less susceptible to be set aside. By providing a look behind the scenes of the scrutiny process, the article does away with tales of excessive intervention on behalf of the arbitral institution when reviewing and approving awards and demystifies the role played by the ICC Court throughout its close interaction with arbitral tribunals operating under the ICC Rules. The article further argues that the scrutiny process can be a highly efficient tool that helps to increase the quality and enforceability of awards rendered under the aegis of the ICC.