• Asia Marketing Journal
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• 제22권3호
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• pp.87-105
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• 2020

With the development of Information Technology, customers require promptly higher quality products and services. Companies try to make newly digital marketing strategies, but there are no empirical researches on them. This article empirically presents a new perspective that companies can shape the customer decision journey ahead by coordinating customer experience. In this article, based on Elaborated Likelihood Model (ELM) theory, customer experience consists of the emotional or cognitive experience. We surveyed about 200 subjects (N = 217) in their 20s and 30s based on the International Music Industry Association's Music Listening 2019 report, then analyzed four different models (before personalization-cognitive experience, before personalization-emotional experience, after personalization- cognitive experience, after personalization-emotional experience) by JASP and R Studio. We conducted Structural Equation Model (SEM) and paired t-test. Personalization factors are about recommendation systems in Spotify. The results of survey represent that companies can shape the Customer Decision Journey (CDJ) ahead especially through enhance cognitive experience. It empirically proves Elaborated Likelihood Model (ELM). The conclusion can be drawn that 'pulling' customer experience can be a new marketing strategies in the digital era.

• 한국정보과학회논문지:시스템및이론
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• 제33권12호
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• pp.907-917
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• 2006

본 논문에서는 각 중복서비스의 수행형태가 결정적이냐 비결정적이냐에 따라 알맞은 수동형중복 프로토콜을 적용함으로써 이동 에이전트 시스템에서 중복 서비스의 결함포용성과 확장성을 향상시키는 새로운 전략을 제안한다. 이러한 목적을 위해 두 개의 수동형 중복 프로토콜들인 PRPNS과 PRPDS를 각각 비결정적 중복 서비스와 결정적 중복 서비스를 위해 설계한다. 이 두 프로토콜들은 모두 방문 이동 에이전트들이 반드시 주 서비스 에이전트만이 아니라 보조 서비스 에이전트를 수행하는 임의의 노드로 전달되어 수행될 수 있도록 한다. 특히, 프로토콜 PRPDS는 임의의 보조 서비스 에이전트가 이동 에이전트 요구 메시지를 수신하고, 주 서비스 에이전트로부터 그 요구 메시지의 전달 일련번호를 얻은 후에, 그 보조 서비스 에이전트가 해당 요구 메시지를 처리하고 다른 중복 서비스 에이전트들과의 조정역할을 할 수 있도록 한다. 따라서, 이 두 프로토콜들을 사용하는 본 논문의 전략은 이동 에이전트 시스템에서 매우 많은 수의 이동 에이전트들이 동시에 접근하고자 하는 중복서비스의 높은 확장성을 보장할 수 있다. 본 시뮬레이션 결과는 제안된 전략이 기존의 수동형 중복프로토콜만을 사용하는 전략에 비해 매우 향상된 성능을 발휘한다는 것을 보여준다.

• ETRI Journal
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• 제40권3호
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• pp.318-329
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• 2018

Femtocell (FC) technology envisaged as a cost-effective approach to attain better indoor coverage of mobile voice and data service. Deployment of FCs over macrocell forms a heterogeneous network. In urban areas, the key factor limits the successful deployment of FCs is inter-cell interference (ICI), which severely affects the performance of victim users. Autonomous FC transmission power setting is one straightforward way for coordinating ICI in the downlink. Application of intelligent control using soft computing techniques has not yet explored well for wireless networks. In this work, autonomous FC transmission power setting strategy using Adaptive Neuro Fuzzy Inference System is proposed. The main advantage of the proposed method is zero signaling overhead, reduced computational complexity and bare minimum delay in performing power setting of FC base station because only the periodic channel measurement reports fed back by the user equipment are needed. System level simulation results validate the effectiveness of the proposed method by providing much better throughput, even under high interference activation scenario and cell edge users can be prevented from going outage.

• Journal of Contemporary Eastern Asia
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• 제17권2호
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• pp.147-175
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• 2018

Under authoritarian regimes, citizen-led NGOs such as environmental NGOs (ENGOs) often operate under close scrutiny of the government. While this presents a challenge to a single ENGO, we propose here - in line with existing research on network effects - that there are opportunities for multiple ENGOs to coordinate and thus work in ways that supersede government controls, affect public opinion, and contribute to policy revision and/or creation. In this paper, we specifically examine the possibility that the gamut of citizen-based ENGOs in China are coordinating. Based on network analysis of ENGOs web pages as well as interviews with more than a dozen ENGO leaders between 2014 and 2016, we find that ENGOs have few direct and public connections to each other, but social media sites and personal connections offline provide a crucial function in creating bridges. A closer examination of these bridges reveals, however, that they can be substantive to the environmental discussion or functional to the dissemination of web page information but typically not both. In short, ENGOs in China are not directly connected but rather are connected in a way that responds to the available social media and the government's censorship practices.

• Journal of Electrical Engineering and Technology
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• 제9권3호
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• pp.1096-1103
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• 2014

This paper proposes a novel strategy for attenuating the output power fluctuation of the wind farm (WF) in a range of tens of seconds delivered to the grid, where the kinetic energy caused by the large inertia of the wind turbine systems is utilized. A control scheme of the two-level structure is applied to control the wind farm, which consists of a supervisory control of the wind farm and individual wind turbine controls. The supervisory control generates the output power reference of the wind farm, which is filtered out from the available power extracted from the wind by a low-pass filter (LPF). A lead-lag compensator is used for compensating for the phase delay of the output power reference compared with the available power. By this control strategy, when the reference power is lower than the maximum available power, some of individual wind turbines are operated in the storing mode of the kinetic energy by increasing the turbine speeds. Then, these individual wind turbines release the kinetic power by reducing the turbine speed, when the power command is higher than the available power. In addition, the pitch angle control systems of the wind turbines are also employed to limit the turbine speed not higher than the limitation value during the storing mode of kinetic energy. For coordinating the de-rated operation of the WT and the storing or releasing modes of the kinetic energy, the output power fluctuations are reduced by about 20%. The PSCAD/EMTDC simulations have been carried out for a 10-MW wind farm equipped with the permanent-magnet synchronous generator (PMSG) to verify the validity of the proposed method.

• 동남아시아연구
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• 제27권3호
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• pp.93-135
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• 2017

동남아시아 국가들은 중국과의 지리적 인접성으로 인해 G-2 역학관계에 주의 깊게 대응하면서 각자의 국가이익을 위해 외교의 묘수(art of diplomacy)를 찾고 있다. 캄보디아는 친중 헤징 전략으로 G-2 체제에 대응해 오고 있다. 본 연구는 냉전종식 이후 친미 성향을 보였던 훈센의 정책이 친중으로 전환하게 된 이유를 G-2 체제의 부상, 아세안 지역주의, 국가이익, 훈센의 통치기반과 체제정당성 차원에서 분석해 본다. 이론적으로 본 연구는 현실구성주의 시각에서 힘의 정치와 규범적 요인들이 훈센의 정치적 입지와 대외정책에 어떠한 영향을 미쳤는가를 살펴본다. 중국과 캄보디아는 경제 상호의존성과 중국의 힘의 상승이라는 현실주의 요인과 규범적 차원에서 양국의 이해관계가 수렴되면서 관계가 긴밀해져왔다. 더구나 중국의 막대한 경제원조와 투자는 훈센의 통치기반과 체제정당성을 강화시키고 있다. 반면에 민주주의와 인권을 앞세운 미국의 가치외교는 훈센의 권력기반에 위협적인 존재가 되면서 양국은 긴장과 갈등의 관계를 가져오고 있다. 하지만 훈센의 친중전략은 미국의 가치외교에 대해 전략적으로 대응하면서 중국으로부터 경제이익을 극대화하려는 헤징전략으로 동남아시아에서 중국의 헤게모니를 인정하고 중국의 지배를 인정하는 미국에 대한 균형전략은 아니다. 아세안의 경우 강대국들의 힘의 정치의 충격을 완화시키는 역할을 하고 있으나, 미중간의 이해관계가 첨예하게 엇갈리고 있어 캄보디아는 국익에 따라 아세안의 조정역할 보다는 양자관계로 G-2 체제에 대응하고 있다.

• 한국세라믹학회지
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• 제53권3호
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• pp.367-375
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• 2016

A novel strategy for the synthesis of $CoSb_2$ nanoparticles is demonstrated via preparation of novel organometallic complexes. Hydrated cobalt oleate (CoOl) and non-hydrated antimony oleate (SbOl) complexes are synthesized as precursors. The $CoSb_2$ nanoparticles are prepared by hot injection, which involves thermolysis of CoOl and SbOl in a non-coordinating solvent at $320^{\circ}C$. The coordination modes and distinct thermal behaviors of the intermediate non-hydrated SbOl complexes are comparatively investigated by thermo-analytical techniques. When the reaction temperature is increased, the particle size is found to increase linearly. The crystallinity of the $CoSb_2$ nanoparticles prepared at $250^{\circ}C$ is amorphous phase without any peaks. $CoSb_2$ structural peaks start to appear at $300^{\circ}C$ and dominant peaks with high crystallinity are synthesized at $320^{\circ}C$. The potential chemical structures of non-hydrated SbOl and their reaction mechanisms by thermolysis are elucidated. The elemental composition and crystallographic structure of $CoSb_2$ nanoparticles suggest a bimodal interaction of the organic shell and the nanoparticle surface, with a chemical absorbed inner layer and physically absorbed outer layer of carboxylic acid.

• 보건행정학회지
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• 제21권3호
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• pp.397-413
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• 2011

Purpose: The purpose of this study is to examine the relationship between the income level and the healthcare utilization by health insurance type in all cancer patients in year 2005. Methods: The target population was cancer patients with health insurance who used healthcare as a diagnosis code (C00-C97) from January 1 to December 31 of 2005. The Korea Central Cancer Registry Center's Cancer Patient Registry Data, the list of cancer patients of the National Health Insurance Corporation, and the claim data of the Health Insurance Review & Assessment Service were used. The I was the wealthiest, followed by II, III, IV. The V was the poorest in this study. For the analysis, the $x^2$-test, ANOVA (and Kruskal-Wallis test), and regression were used. Results: Outpatient and hospitalization medical expenses, and outpatient visit days of cancer patients with self-employed health insurance were highest in I (p<.001, respectively), and the hospitalization days were the highest in II (p<.001, respectively). Outpatient and hospitalization medical expenses, and outpatient visit and hospitalization days of cancer patients with occupational health insurance were the highest in I (p<.001, respectively). Outpatient and hospitalization medical expenses, and outpatient visit and hospitalization days in cancer patients were higher in I compared to V, and higher in II and III, IV compared to V (p<.001, respectively). Conclusion: Supporting plan for cancer patients' outpatient healthcare utilization are necessary. Moreover, we should make specialized strategy for low income cancer patients with self-employed health insurance when we develop quality improvement policy for inpatient service.

• Asian Pacific Journal of Cancer Prevention
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• 제15권6호
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• pp.2893-2900
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• 2014

Background: Statistical methods are very important to precisely measure breast cancer patient survival times for healthcare management. Previous studies considered basic statistics to measure survival times without incorporating statistical modeling strategies. The objective of this study was to develop a data-based statistical probability model from the female breast cancer patients' survival times by using the Bayesian approach to predict future inferences of survival times. Materials and Methods: A random sample of 500 female patients was selected from the Surveillance Epidemiology and End Results cancer registry database. For goodness of fit, the standard model building criteria were used. The Bayesian approach is used to obtain the predictive survival times from the data-based Exponentiated Exponential Model. Markov Chain Monte Carlo method was used to obtain the summary results for predictive inference. Results: The highest number of female breast cancer patients was found in California and the lowest in New Mexico. The majority of them were married. The mean (SD) age at diagnosis (in years) was 60.92 (14.92). The mean (SD) survival time (in months) for female patients was 90.33 (83.10). The Exponentiated Exponential Model found better fits for the female survival times compared to the Exponentiated Weibull Model. The Bayesian method is used to obtain predictive inference for future survival times. Conclusions: The findings with the proposed modeling strategy will assist healthcare researchers and providers to precisely predict future survival estimates as the recent growing challenges of analyzing healthcare data have created new demand for model-based survival estimates. The application of Bayesian will produce precise estimates of future survival times.

• Asian Pacific Journal of Cancer Prevention
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• 제16권2호
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• pp.395-400
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• 2015

Both Japan and Korea provide population-based screening programs. However, screening rates are much higher in Korea than in Japan. To clarify the possible factors explaining the differences between these two countries, we analyzed the current status of the cancer screening and background healthcare systems. Population-based cancer screening in Korea is coordinated well with social health insurance under a unified insurer system. In Japan, there are over 3,000 insurers and coordinating a comprehensive strategy for cancer screening promotion has been very difficult. The public healthcare system also has influence over cancer screening. In Korea, public healthcare does not cover a wide range of services. Almost free cancer screening and subsidization for medical cost for cancers detected in population-screening provides high incentive to participation. In Japan, on the other hand, a larger coverage of medical services, low co-payment, and a lenient medical audit enables people to have cancer screening under public health insurance as well as the broad range of cancer screening. The implementation of evidence-based cancer screening programs may be largely dependent on the background healthcare system. It is important to understand the impacts of each healthcare system as a whole and to match the characteristics of a particular health system when designing an efficient cancer screening system.