• Electronics and Telecommunications Trends
• /
• v.28 no.1
• /
• pp.137-147
• /
• 2013

본고는 미국 이동통신 업계에서 모바일 요금전략을 선도하고 있는 버라이즌 와이어리스사(社)의 최근 요금전략 동향을 고찰하여 요금제 개편의 의미와 추진 배경 그리고 국내에 주는 시사점을 정리한 것이다. 본고의 분석에 따르면 최근 2차례에 걸쳐 진행된 버라이즌 와이어리스사의 요금제 개편은 상호 밀접한 관련성이 있고 음성 부분과 데이터 부분에 대한 요금체계를 전반적으로 재설계한 것으로 평가할 수 있다. 특히 Share Everything Plan은 다양한 의미와 혁신적인 변화를 동반하고 있어 향후 이 요금제가 통신 업계에 어떤 영향을 주는지 계속해서 주시할 필요가 있다. 본고는 모바일 업계를 선도하고 있는 버라이즌 와이어리스사의 요금전략에 초점을 맞추어 상세하고도 심도 있는 분석으로 기존 논문들과 차별화 하였다.

• Journal of the Korea Furniture Society
• /
• v.28 no.4
• /
• pp.362-370
• /
• 2017

To improve usability and recognition of product, the term, Affordance, started to be known in the design world by US recognitive psychologist, Donald A. Norman, has the meaning of providing, Act inducement, Act motivation, Expectancy or what environment provides, etc., thus as one of Mental Model, providing ever more importance not only to the everyday life goods but to the time like these days when products for information overflow. Particularly, this study is oriented toward providing basic study framework on Affordance-like approach in pursuing psychological approach in design for changing the limitless phenomena involved in environment and human body and further for inquiring into source of idea from abstract form hint latent in act and further from the act conducted everyday while peoples are unconscious.

• Journal of Korean Society for Quality Management
• /
• v.28 no.1
• /
• pp.27-40
• /
• 2000

Technological forecasting for microprocessor market can provide timely insight into the prospects for significant technological changes in computer hardware as well as software. In this paper, we use bibliometrics to forecast R&D trend on microprocessor technology. Cumulative numbers of US Patents on several generations of microprocessor technology (pipeline, superpipeline, supersclar and VLIW) approved since 1980 are applied to fit diffusion models. Our study results provide both the maximum market potential and the maturity time for each generation of microprocessor technology. Such information is expected to make contribution on making better decisions with regard to strategic corporate planning, R&D management, product development and investment in new technology of microprocessor.

• Journal of Chest Surgery
• /
• v.28 no.9
• /
• pp.869-871
• /
• 1995

Esophageal duplication cysts are uncommon, benign lesions of the esophagus. They are rare congenital foregut anomalies. To be considered an esophageal duplication cyst, a lesion must meet the following criteria:1 the cyst in the esophageal wall 2 the cyst is covered with a muscularis propria,generally of two layers and 3 the cyst has an epithelial lining consistent with that of the 4 week embryo, which may be columnar or pseudostratified columnar, and may be ciliated. Herein we report a case of an esophageal cyst located within the thoracic cavity, which is, to the best of our knowledge, the first case reported in Korea. Surgery is generally the treatment of choice for esophageal cyst, and was indicated in this case for the diagnosis and management of symptoms attributable to the cyst.

• Proceedings of the KAIS Fall Conference
• /
• 2010.11a
• /
• pp.168-171
• /
• 2010

본 논문에서는 GaN HEMT 소자를 이용한 고출력 고효율 특성을 가지는 광대역 SSPA의 개발을 다루고 있다. 개발한 SSPA는 8W 급과 15W 급의 GaN HEMT 소자를 사용하여 Pre-Drive 증폭단을 구성하였으며, Drive 증폭단은 50W/150W급 GaN HEMT 소자를 직/병렬구조로 사용하였다. Main 증폭단은 4-way 분배기와 결합기를 이용한 Balanced Structure를 적용하여 높은 출력을 구현하였으며, 안정적인 동작을 위하여 음(-)전원 제어 회로와 출력신호 검출 회로를 포함하고 있다. 제작된 SSPA의 사용가능 대역은 2.9GHz~3.3GHz로 단일전원을 사용하고 있으며 100us 펄스 폭, 10% Duty Cycle 조건에서 60dB의 전압이득, 1kW 출력과 약 28% 효율 특성을 가지는 것으로 측정되었다. 본 논문에서 개발한 SSPA는 S-대역을 사용하는 레이더시스템의 송신단에 적용될 수 있다.

• BMB Reports
• /
• v.37 no.1
• /
• pp.28-34
• /
• 2004

The discovery of biochemical and cellular functions of unannotated gene products begins with a database search of proteins with structure/sequence homologues based on known genes. Very recently, a number of frontier groups in structural biology proposed a new paradigm to predict biological functions of an unknown protein on the basis of its three-dimensional structure on a genomic scale. Structural proteomics (genomics), a research area for structure-based functional discovery, aims to complete the protein-folding universe of all gene products in a cell. It would lead us to a complete understanding of a living organism from protein structure. Two major complementary experimental techniques, X-ray crystallography and NMR spectroscopy, combined with recently developed high throughput methods have played a central role in structural proteomics research; however, an integration of these methodologies together with comparative modeling and electron microscopy would speed up the goal for completing a full dictionary of protein folding space in the near future.

• Journal of the Korean Society of Costume
• /
• v.28
• /
• pp.85-98
• /
• 1996

Yanbian is the area where many Korean-Chinese have settled and have undergone a unique culture. This study is intended to examine the clothing life of Korean-Chinese in Yanbian in the aspects of the cultural marginality and the effects of other cultures. Nowadays they have three kinds of dresses" Han-Bok In-Min-Bok and the western dress. han-Bok is the result of cultural marginal phenomenon so they pre-serve 1920s style which already disappeared in South Korea. In-Min-Bok is the production of Communism which is an 'invention' from the viewpoint of Cultural-Anthropology. However both Han-Bok and In-Min-Bok are gradually disappearing from the daily life. Today it is quite common for us to see a number of people wearing western dresses on the street. In their clothing life the acculturation to the Chinese wasn't traced which may be due to the strong 'National I dentity' of them.

• Journal of Society of Preventive Korean Medicine
• /
• v.3 no.1
• /
• pp.67-82
• /
• 1999

This study was performed to investigate out-of-pocket money among medical expenses of an oriental medical university hospital by the use of internal data of an oriental hospital because medical insurance program data could not show us insuree's out-of-pocket money among medical expenses. The purpose of this study was to analyze out-of-pocket money among medical expenses of ambulatory and hospitalized patients. Under this purpose, We analyzed actual medical expenses data of 1389 out-patients and 858 in-patients of the oriental medical university hospital with 90 beds that could be approach to internal data from July 1, 1998 to March 31, 1999. The major findings are as follows : 1. In ambulatory patients, the cost share ratio of insuree & that of insurer was 90 : 10 respectly. 2. In hospitalized patients, the cost share ratio of insuree & that of insurer was 72 : 28 respectly.

• Transactions of the Korean Society of Automotive Engineers
• /
• v.15 no.2
• /
• pp.28-34
• /
• 2007

In design stage of vehicles, the application of virtual durability analysis techniques enables us to cut down the necessary time and cost to carry out various physical experiments. In this study, computer simulations of vehicle suspensions were carried out with DADS program including component flexibility, and the durability analysis of vehicle components was executed with MSC/Fatigue program using the load history obtained from vehicle dynamic simulation. Driving test of a vehicle was also carried out to obtain precise input data for the durability analysis, and the results of virtual durability analysis were compared to those of experiments.

• Journal of the Korea Furniture Society
• /
• v.28 no.1
• /
• pp.36-46
• /
• 2017

Recently, the demand for marine leisure industry is rapidly increasing due to the five-day work week and the per capita income approaching US $ 30,000. In particular, the Republic of Korea is surrounded by the sea on three sides and is composed of 3,150 islands and coastline. As shipbuilding infrastructure is abundant and the government is expected to actively support policies as a new growth engine, leisure boat furniture industry is expected to grow rapidly along with leisure boat manufacturing. Therefore, in this paper, after understanding the leisure boat (yacht) and analyzing the requirements of yacht furniture, we proposed a beautiful yacht furniture design that is lightweight, durable and safe using a 120-foot super yacht that can best show the characteristics of yacht furniture using wood bending technology and color variation of woods.