• Transactions of the Korean Society of Machine Tool Engineers
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• v.16 no.5
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• pp.55-62
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• 2007

With the developments in knitting, manufacturing, and polymers, coated gloves have been evolved in a way to maximize occupational safety and functionality. In this paper, we have considered the PU-coating process for the glove knitted by Dyneema to reduce the occurrence of the defects due to air bubble. This paper classifies the types of defect due to air bubble and traces their forming mechanisms. The air between coating layer of glove and mold's surface forms the defects if it is not evacuated fully in the process of submerging into water. The defects can be suppressed or avoided by forming air-evacuating path on the surface of the molds.

• Proceedings of the KSME Conference
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• 2003.04a
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• pp.1240-1247
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• 2003

Water jet nozzle for LCD has been used as a wet cleaning process in many industries. It is necessary for the nozzle to consider cleaning effect and flux. In this paper, we applied the bubble dynamic theory(Rayleight-Plesset equation) to improve the cleaning efficiency. Generally, Rayleigh-Plesset equations for cavitation bubbles are used in analyzing computer simulation for caviting flows. Burst of bubbles causes potential energies and we can use these energies to remove organic and inorganic compounds on the LCD. Therefore, it is necessary to analyze the bubble generations and axiomatic design by computational fluid dynamics(CFD). By comparing the weight matrix of neural networks to the design matrix of axiomatic design, we propose methods to verify designs objectively. The optimal solution could be deduced by the regression analysis using the design parameters.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.11
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• pp.6565-6575
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• 2014

Hamilton's Markov-switching model [5] was extended to the simultaneous equations model. A framework for an instrumental variable interpretation of full information maximum likelihood (FIML) by Hausman [4] can be used to deal with the problem of simultaneous equations based on the Hamilton filter [5]. A comparison of the proposed FIML Markov-switching model with the LIML Markov-switching models [1,2,3] revealed the LIML Markov-switching models to be a special case of the proposed FIML Markov-switching model, where all but the first equation were just identified. Moreover, the proposed Markov-switching model is a general form in simultaneous equations and covers a broad class of models that could not be handled previously. Excess sensitivity of marginal propensity to consume with big shocks, such as housing bubble bursts in 2008, can be determined by applying the proposed model to Campbell and Mankiw's consumption function [6], and allowing for the possibility of structural breaks in the sensitivity of consumption growth to income growth.

• International Area Studies Review
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• v.13 no.2
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• pp.168-188
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• 2009

Japanese economy suffered from a great recession for one decade between 1993 and 2002, because of the bubble bursting. Recently, a similar situation broke out in the USA and spread throughout the world. This paper investigated the effects of economic policy on the Japanese depression in order to find out how the recession, caused by financial crisis, can be reasonably removed. The analysis of documentary records indicate that there exists an optimum rate in government debt and the point in time of economic policy is decisive. Statistical studies with a VAR model and a State Space Model suggest that government expenditures affect the growth rate of national product but with a short term and it has a time lag of a half year. Income tax has a grievous negative effect on the growth rate with a long term and it works without a time lag. Therefore the increasing of taxation should be put into force very carefully. However private investment is a determinate factor for the recovery of depression.

• Cross-Cultural Studies
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• v.37
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• pp.157-183
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• 2014

Although Marguerite Yourcenar, a representative French woman writer, lived 47 years in the United States from 1939 to 1987, the American influence on her life has not been studied either at home or abroad. The purpose of this study is to examine chronologically the American influence on the following three literary works of Yourcenar: The Little Mermaid (1942), River Deep, Dark River (1966) and Recluse (1982). The Little Mermaid is a drama, presented in musical format, about the identity crisis and inner conflict of Yourcenar. Unlike the little mermaid who burst like a bubble in Hans Christian Andersen's fairy tale, Yourcenar associates her death with the image of ascension. River Deep, dark river is a translation of the Negro spiritual expressing the suffering of African Americans. Recluse, her last novel, deals with the life story of a simple man living in nature on a small island. This novel shows Yourcenar's desire for a pure world that is not defiled by human greed. Yourcenar sponsored major human rights organizations and environmental groups in her life, and donated her entire fortune for human rights and the protection of Wild Fauna and Flora. The American influence on the literary works of Yourcenar can be summarized as a "great turning point", because she was transformed from a humanistic writer into an intellectual actor.

• Korean Institute of Interior Design Journal
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• v.20 no.2
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• pp.85-93
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• 2011

The Japanese housing market has implemented management and operation systems of community service ahead of the Korean market. This paper examines case studies of Japanese community services by reviewing related studies, studying homepages, and conducting in-depth interviews with management staff. The goal of this study is to find marketing strategies and the proper management practices in preparation for the upcoming low-fertility and aging society. The results of this study are as follows: 1) After Japan's bubble economy burst in 1985, so called that incorporated various community facilities with life services were introduced to the Japanese housing market in order to cope with the diversifying family types and lifestyles. This new trend was also due in part to customers' increasing demands for convenient urban condominiums. 2) In Japan, many developers and construction companies have run the management of community service programs and created new business models in collaboration with other affiliated companies. However, many of these programs have been found even more successful and reliable when the facility management companies collaborate with local service providers instead of relying solely on affiliated companies. 3) The early stage of life services began with "front-desk services", but these have evolved into more upgraded "concierge services" that can provide residents with tailored services and conveniences. Furthermore, some of the service providers have encouraged resident participation in the process of designing and implementing their community services. 4) In Korea, most construction companies and developers are still oriented toward providing hardware such as spaces and facilities in developing their community services. Therefore, companies with high market reputations must seek alternative ways to maintain and enhance their brand values by implementing new approaches in collaboration with both affiliated companies and local service providers. This can be done by finding new notions of managing and operating community services through research and development.

• Publications of The Korean Astronomical Society
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• v.30 no.2
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• pp.559-563
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• 2015

Monitor of All-sky X-ray Image (MAXI) is a Japanese X-ray all-sky surveyer mounted on the International Space Station (ISS). It has been scanning the whole sky since 2009 during every 92-minute ISS rotation. X-ray transients are quickly found by the real-time nova-search program. As a result, MAXI has issued 133 Astronomer's Telegrams and 44 Gamma-ray burst Coordinated Networks so far. MAXI has discovered six new black holes (BH) in 4.5 years. Long-term behaviors of the MAXI BHs can be classified into two types by their outbursts; a fast-rise exponential-decay type and a fast-rise flat-top one. The slit camera is suitable for accumulating data over a long time. MAXI issued a 37-month catalog containing 500 sources above a ~0.6 mCrab detection limit at 4-10 keV in the region ${\mid}{b}{\mid}$ > $10^{\circ}$. The SSC instrument utilizing an X-ray CCD has detected diffuse soft X-rays extending over a large solid angle, such as the Cygnus super bubble. MAXI/SSC has also detcted a Ne emission line from the rapid soft X-ray nova MAXI J0158-744. The overall shapes of outbursts in Be X-ray binaries (BeXRB) are precisely observed with MAXI/GSC. BeXRB have two kinds of outbursts, a normal outburst and a giant one. The peak dates of the subsequent giant outbursts of A0535+26 repeated with a different period than the orbital one. The Be stellar disk is considered to either have a precession motion or a distorted shape. The long-term behaviors of low-mass X-ray binaries (LMXB) containing weakly magnetized neutron stars are investigated. Transient LMXBs (Aql X-1 and 4U 1608-52) repeated outbursts every 200-1000 days, which is understood by the limit-cycle of hydrogen ionization states in the outer accretion disk. A third state (very dim state) in Aql X-1 and 4U 1608-52 was interpreted as the propeller effect in the unified picture of LMXB. Cir X-1 is a peculiar source in the sense that its long-term behavior is not like typical LMXBs. The luminosity sometimes decreases suddenly at periastron. It might be explained by the stripping of the outer accretion disk by a clumpy stellar wind. MAXI observed 64 large flares from 22 active stars (RS CVns, dMe stars, Argol types, young stellar objects) over 4 years. The total energies are $10^{34}-10^{36}$ erg $s^{-1}$. Since MAXI can measure the spectrum (temperature and emission measure), we can estimate the size of the plasma and the magnetic fields. The size sometimes exceeds the size of the star. The magnetic field is in the range of 10-100 gauss, which is a typical value for solar flares.

• Journal of the Korean association of regional geographers
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• v.22 no.2
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• pp.383-396
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• 2016

The most direct influence on the development of Yoseba Kotobuki was the end of World War II. As city rebuilding projects began vibrantly overlapping, the vitalization in Kotobuki was adopted by the laborers coming in from various parts throughout of the country. Just as the period of economic revival from the special demand created by the Korean War got underway, the aftermath of the worldwide economic recession due to the oil crisis had a direct effect on even the labor market. Moreover, as the vitality of the labor market gradually fizzled out from the long-term economic recession caused by the burst of the economic bubble, the labor base that had once been the pillar of the Japanese economy began to age and could no longer perform this role. As these aging laborers came to receive public assistance, the doya managers began repairing the doya and Kotobuki began to change again. The historical times which affected the changes in Yoseba Kotobuki's locality are in the lives of its members--the laborers--and the times themselves, which operate on the micro level; however, in those times, the national and the global time of the nation-state interact and are linked in multiple layers.