• 한국IT서비스학회지
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• 제21권3호
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• pp.1-25
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• 2022

The financial MyData service has implemented in January 2022 and launched 45 services by banks, securities, credit cards and fintech companies. This study applied the Q methodology, to identify the user types of MyData services and compared the perceptions of employees of financial institutions who plan and develop the MyData services. There are three types of MyData service users: active users, limited users who focus on consumption and asset status inquiry, and sensitive users for personal information. There were two types of recognition of financial company employees. One is the active user support other is the sensitive user for personal information support. The analysis of subjective perceptions can be used as a reference for establishing a company's MyData service marketing strategy and establishing related policies to improve the MyData ecosystem.

• 인터넷정보학회논문지
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• 제24권4호
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• pp.15-24
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• 2023

Digital therapeutics (DTx) are utilized to replace or supplement drug therapy to treat patients. DTx are developed as a mobile application for portability and convenience. The government requires security verification to be performed on digital medical devices that manage sensitive information during the transmission and storage of patient data. Although safety verification is included in the approval process for DTx, the cybersecurity checklist used as a reference does not reflect the characteristics of mobile applications. This poses the risk of potentially overlooking vulnerabilities during security verification. This study aims to address this issue by comparing and analyzing existing items based on the mobile tactics, techniques, and procedures of MITRE ATT&CK, which manages globally known and occurring vulnerabilities through regular updates. We identify 16 items that require improvement and expand the checklist to 29 items to propose improvement measures. The findings of this study may contribute to the safe development and advancement of DTx for managing sensitive patient information.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2000년도 추계종합학술대회 논문집(1)
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• pp.41-44
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• 2000

Because of internet's growth, today's network has a serious bandwidth problem. WDM(Wavelength Division Multiplexing) is a solution of this problem. In the WDM networks, QoS(Quality of Service) is as important as bandwidth. And today's voice over IP technology makes a lot of delay-sensitive internet traffic. De]ay-sensitive internet traffic is growing up, so more QoS is needed. We proposed effective solution to assign QoS.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2001년도 하계종합학술대회 논문집(1)
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• pp.281-284
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• 2001

In this paper, we design the Sorting-Banyan network with an efficient buffer and sorting management schema that makes switch be capable of supporting delay sensitive as well as loss sensitive. The proposed switching network is remodeled that based on Batcher-banyan network that have eight input and output ports The structure of designed switching network is constructed of modified banyan network with 2-way routing paths and two plane sorting networks. we have analysed the maximum throughput of the switch, under the uniform random traffic load, the FIFO discipline has increased by about 11% when we compare the switching system with the input buffering system.

• 한국통신학회:학술대회논문집
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• 한국통신학회 1991년도 추계종합학술발표회논문집
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• pp.141-144
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• 1991

In this paper, we analyze the performance of ATM switch with output buffer which has a space priority control mechanism. As we assumed that the input traffic consists of loss tolerable voice and loss sensitive data, we modeled it with MMPP(Markov Modulated Poisson Process). We confirmed that the loss probability of loss sensitive traffic decreases when we use the space priority control mechanism.

• 전기의세계
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• 제31권5호
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• pp.368-374
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• 1982

This paper describes a combined algorithm for short-term-load forecating. One of the specific features of this algorithm is that the base, weather sensitive and residual components are predicted respectively. The base load is represented by the exponential smoothing approach and residual load is represented by the Box-Jenkins methodology. The weather sensitive load models are developed according to the information of temperature and discomfort index. This method was applied to Korea Electric Company and results for test periods up to three years are given.

• 한국의류산업학회지
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• 제15권5호
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• pp.704-712
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• 2013

Contemporary young men are consumption-oriented, pursue ideal male images displayed in commercials, and are highly interested in fashion, beauty, and appearance. This metrosexual tendency(which values appearance) is largely influenced by mass media. This study examines how men's media information utilization influences appearance awareness and metrosexual tendency as well as how these two variables influence cosmetics consumption and fashion product consumption behavior. The results are as follows. First, metrosexual tendency consists of four dimensions: fashion involvement, pursuit of individuality beyond sexuality, cognition of fashion taste, and preference of a high quality product. The sum of variance is 65.594%. Second, media information utilization influenced metrosexual tendency and metrosexual tendency influence cosmetic consumption, brand-sensitive consumption and commercial-sensitive consumption; however, it did not affect price-sensitive consumption. Third, media information utilization affected appearance awareness; however, appearance awareness did not affect metrosexual tendency. In conclusion, appearance management behavior for men in their 20s is clearly affected by media. This phenomenon is caused by the metrosexual desire to express identity through fashion. Men in their 20's do not take care of their looks because of the social perception of appearance (as related to showing off their competence or pursuit of social success); rather, they have a desire to express their individuality and personally enjoy grooming and maintaining their appearance. Therefore, we can expect increased beauty and fashion expenditures.

• 한국추진공학회:학술대회논문집
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• 한국추진공학회 2007년도 제29회 추계학술대회논문집
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• pp.99-102
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• 2007

Pressure Sensitive Paint(PSP)는 압력에 반응하는 도료를 뜻한다. PSP를 이용하여 압력을 측정 하기 위해서는 paint calibration과 PSP를 도포한 모델의 풍동실험이 필요하다. PSP는 이 두 가지의 결과를 이용한 이미지의 후처리과정을 통하여 압력정보를 포함한 이미지를 얻을 수 있는 신기술이다. 본 연구에서는 PSP에 필요한 장치 및 설비들을 구성하고 PSP를 이용하여 calibration 실험을 실시하였다. 본 연구를 통해 얻어진 calibration chamber의 설계 및 제작 방법으로 진보된 calibration 시스템을 연구할 수 있는 능력을 배양하였다.

• 한국항해항만학회지
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• 제26권1호
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• pp.127-136
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• 2002

항공 대잠수함전에 사용되는 방향주파수분석저장 소노부위 (DIFAR Sonobuoy)에 방위정보를 제공하는 플럭스-게이트 콤파스의 위상감응검출 (PSD) 회로 설계와 구현에 관해서 기술하였다. PSD 회로는 쌍동-T RC 회로망을 갖는 능동형 대역필터로 구성하였다. PSD 회로에 대한 성능실험 결과, 대역통과 필터가 지구자장 방향에 비례하는 2Fe의 2차 고조파 신호를 효과적으로 걸러냄을 확인하였다. 그 결과 방위 신호 정보를 획득할 수 있었다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제10권10호
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• pp.5153-5170
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• 2016

The benefit of the scalability and flexibility inherent in cloud computing motivates clients to upload data and computation to public cloud servers. Because data is placed on public clouds, which are very likely to reside outside of the trusted domain of clients, this strategy introduces concerns regarding the security of sensitive client data. Thus, to provide sufficient security for the data stored in the cloud, it is essential to encrypt sensitive data before the data are uploaded onto cloud servers. Although data encryption is considered the most effective solution for protecting sensitive data from unauthorized users, it imposes a significant amount of overhead during the query processing phase, due to the limitations of directly executing operations against encrypted data. Recently, substantial research work that addresses the execution of SQL queries against encrypted data has been conducted. However, there has been little research on top-k join query processing over encrypted data within the cloud computing environments. In this paper, we develop an efficient algorithm that processes a top-k join query against encrypted cloud data. The proposed top-k join processing algorithm is, at an early phase, able to prune unpromising data sets which are guaranteed not to produce top-k highest scores. The experiment results show that the proposed approach provides significant performance gains over the naive solution.