• Journal of Digital Convergence
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• v.18 no.11
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• pp.99-109
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• 2020

Paid membership is a useful marketing method that can acquire long-term customers. This study benchmarked representative overseas memberships, Amazon Prime, Alibaba 88 Membership, and Rakuten Super Point, so that domestic shopping platform companies can refer to launch the paid membership. The membership services have in common: economic benefits, convenient experiences, and discriminatory treatment. Domestic companies should set the core customer value they want to deliver to consumers and organize the benefits so that paid membership can be operated from a long-term perspective. This study has a high practical contribution and it is necessary to conduct an empirical analysis of experts and a customer user survey in the future.

• The Journal of Korean Medicine
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• v.36 no.1
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• pp.61-74
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• 2015

Objectives: The main purpose of this study is to find a solution for modernized classification of herbal medicinal preparations in dual medical systems. Through this study, we expect to provide a reasonable foundation of herbal medicine for public health. Methods: We studied legal or technical terms of herbal medicinal preparations from the past regulations, and through this procedure, we could suggest clear definitions of terms for herbal medicinal preparations. We also investigated documents for approval of herbal medicinal preparation from US, EU(European union), The People's Republic of China, Japan, so that we can refer to them to revise regulation for appropriate use of herbal preparations. Results: In Korea pharmaceutical affairs act, any basis of 'Crude drugs' does not exist. But in some subordinary notifications, the way that they use the 'Natural product medicine' is used as a means of limiting basic rights of doctor or pharmacist of Korean medicine compared to doctor or pharmacist. At the same time, in subordinary notifications, provisions are vague and not enough for scientific evidence of Korean medicine. Thus, we re-categorized herbal medicinal preparations into new drugs, drugs made from herbal medicinal preparations and suggested requirements for drug approval. Conclusions: Instead of using the term 'Crude drug preparations', and we should use term 'Herbal medicinal preparations' in related act and notification. And also we suggest to amend subordinary regulations and documents for approval of herbal medicinal preparations. Through this, we can make herbal medicinal preparations be more industrialized.

• Journal of computational fluids engineering
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• v.15 no.2
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• pp.21-27
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• 2010

Immersed boundary lattice Boltzmann method (IBLBM) has been applied to simulate a turbulent flow over circular cylinder in a flow field effectively. Although IBLBM is very effective method to simulate the flow over a complex shape of obstacle in the flow field regardless of the constructed grids in the calculation domain, the results, however, become numerically unstable in high reynolds number flow. The most effective suggestion to archive the numerical stability in high Reynolds number flow is applying the multiple relaxation time (MRT) model instead of single relaxation time(SRT) model in the collision term of lattice Boltzmann equation. In the research MRT model for IBLBM was introduced and comparing the numerical results obtained by applying SRT and MRT. The hydraulic characteristic of cylinder in a flow field between two parallel plate at the range of $Re{\leqq}2000$represented and it is also compared the drag and lifting coefficients of the cylinder calculated by IBLBM with SRT and MRT model.

• The Korean Journal of Health Service Management
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• v.6 no.3
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• pp.53-66
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• 2012

The main purpose of this research is to gain full understanding of how well people are aware and prepared for after retirement. To reach the goal to learn more about the upcoming aging society, professionals from variety of medical fields were employed as subjects to this research. In order to get a detailed result, and to provide an ideal suggestion, the research was conducted with 406 professional workers from 31 different medical institutions as its subjects. Obtained results were summarized as follows. First, in terms of government policies in the field, the idea of long term recuperation insurance gained more support than the belief that the public annuity is a sufficient economic countermeasure. Second, there is a causal relation between the economical preparation for retirement and the reason why people do not prepare for their after retirement. The more one feel short of money, the more one is obtuse towards the necessity of preparing for retirement, the more ignorant one is about preparing for retirement, the higher the chance that there will be no preparation done for his/her after retirement.

• Journal of Oriental Neuropsychiatry
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• v.27 no.2
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• pp.43-55
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• 2016

Objectives The aim of this systemic review was to summarize medical records of Korean medicine based psychotherapy and investigate its therapeutic mechanism.Methods We searched articles on Korean neuropsychiatry in Korean databases. Subsequently, we selected and analyzed medical records on Korean medicine based-psychotherapy that met inclusion criteria.Results Fifty-five medical records were included. They were classified into the following 5 categories. Five minds mutual restriction therapy in 19 medical records; counseling and persuading therapy in 12 medical records; moving essence and changing Qi therapy in 10 medical records; Kyungjapyungji psychotherapy in 2 medical records; and suggestion psychotherapy in 11 medical records.Conclusions The results indicated that emotion is mainly used for cure. Buddhism affects Korean medicine based psychotherapy. Korean medicine based psychotherapy corresponds to western psychotherapy such as short-term dynamic psychotherapy (STDP), supportive psychotherapy, cognitive therapy, behavior therapy, and guided imagery.

• Journal of Korean Association for Spatial Structures
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• v.19 no.4
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• pp.85-94
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• 2019

Then 3D printing is used practically at construction sites, there is a serious lack of studies on the conflict with construction-related laws and expected operational problems. Accordingly, the purpose of this study is to present obstacles and directions for improvement in construction-related laws (Building Act, Construction Technology Promotion Act, Housing Act, Construction Machinery Management Act, etc.) for practical operation of 3D printing. The important results are as follows. Amending existing construction-related laws for 3D printing is irrational and inefficient in terms of structure and material. This study proposed a method of satisfying performance required by laws or standards based on the performance design method presented in existing laws and systems through structure and material performance certification procedure. In addition, inclusion of 3D printing equipment in the Construction Machinery Management Act results in various restrictions such as equipment inspection and certification of machine parts. As such restrictions can block vitalization of 3D printing, a long-term and step-wise approach was suggested.

• Proceedings of the Korea Water Resources Association Conference
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• 2009.05a
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• pp.2161-2166
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• 2009

It is important for 0-6 hour nowcasting to provide for a high-quality initial condition in a meso-scale atmospheric model by a data assimilation of several observation data. The polarimetric radar data is expected to be assimilated into the forecast model, because the radar has a possibility of measurements of the types, the shapes, and the size distributions of hydrometeors. In this paper, an impact on rainfall prediction of the data assimilation of hydrometeor types (i.e. raindrop, graupel, snowflake, etc.) is evaluated. The observed information of hydrometeor types is estimated using the fuzzy logic algorism. As an implementation, the cloud-resolving nonhydrostatic atmospheric model, CReSS, which has detail microphysical processes, is employed as a forecast model. The local ensemble transform Kalman filter, LETKF, is used as a data assimilation method, which uses an ensemble of short-term forecasts to estimate the flowdependent background error covariance required in data assimilation. A heavy rainfall event occurred in Okinawa in 2008 is chosen as an application. As a result, the rainfall prediction accuracy in the assimilation case of both hydrometeor types and the Doppler velocity and the radar echo is improved by a comparison of the no assimilation case. The effects on rainfall prediction of the assimilation of hydrometeor types appear in longer prediction lead time compared with the effects of the assimilation of radar echo only.

• Journal of the Korean Home Economics Association
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• v.41 no.8
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• pp.179-199
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• 2003

This study was intended to probe the scheme for correctly making Korean fashion design known to the world. It is because its suggestion could find out in the current influence of Japanese designer works led to fashion in Europe and the U.S. It can be said that this success was attributed to Japanese high economic growth, increased interests in fashion, increased awareness of the fashion industry, production of designers activity in the world area, systematic and active support of the fashion circles and government for the fashion industry and so on. Korean government has recently begun to attempt to nurture Koreanism or Korean look as world-class fashion. But there are a considerable number of obstacles in making Koreanism or Korean look known to the world due to such several factors as the lack of interests in fashion, the lack of globally active designers, and the like. It is necessary to nurture the fashion industry and educate and train designers for the long-term perspective. In addition, both the government and the fashion circles need to provide for more active and reasonable policy for holding the Korean Fashion Fair, expanding the Seoul Collection to the more global level, opening the way for new designers, and so forth. Furthermore, our academic circles need to make much research on the scheme for the glottalization of Koreanism or Korean look.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.33 no.4
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• pp.366-372
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• 2009

Creep life prediction has been commonly used by a time-temperature parameter (TTP) which is correlated to an applied stress and temperature, such as Larson-Miller (LM), Orr-Sherby-Dorn (OSD), Manson-Haferd (MH) and Manson-Succop (MS) parameters. A stress-temperature linear model (STLM) based on Arrhenius, Dorn and Monkman-Grant equations was newly proposed through a mathematical procedure. For this model, the logarithm time to rupture was linearly dependent on both an applied stress and temperature. The model parameters were properly determined by using a technique of maximum likelihood estimation of a statistical method, and this model was applied to the creep data of Alloy 617. From the results, it is found that the STLM results showed better agreement than the Eno’s model and the LM parameter ones. Especially, the STLM revealed a good estimation in predicting the long-term creep life of Alloy 617.

• The Journal of Korean Association of Computer Education
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• v.8 no.4
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• pp.25-36
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• 2005

Data of 650 college students in the nation were collected by mail in 2001 Nov. Students preference over cyber communication methods were SMS message, messenger, blog, e-mail in that order. Younger students prefer SMS messages while older students prefer e-mail in relative term. Mobile phone is used more for SMS message than voice communication which is more so with females. The rate of non e-mail use is 57.8%, particularly males(61.9%) and younger students(69.4%) are higher. E-mail, once was very high in use, is being replaced by new media. Suggestion for e-learning environment are being connected, immediacy, active use of blog, more use of fun multimedia information.