• Journal of Music and Human Behavior
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• v.14 no.1
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• pp.17-39
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• 2017

This study aimed to review Korean-written and English-written studies on music interventions for family caregivers of patients in medical settings. Electronic databases were searched for studies published through 2016, using the keywords of music intervention, family caregivers, and specified settings. A total of 43 studies, five Korean-written and 38 English-written studies, were selected. The results showed that caregivers were the sole participants in five studies (family-only), and caregivers and patients co-participated in 38 studies (family-patient). While diversified types of family participation were included in the English-written studies dating back to the late 1980s, the Korean-written studies were the only ones to include patients as co-participants with their caregivers. Studies with family-only participation tended to be conducted in palliative care units and usually included the spouses of the patients. Meanwhile, studies with family-patient participation tended to be conducted in NICU or cancer units and usually included the parents of the patients. Furthermore, studies with family-only participation tended to apply passive music activities, and those with family-patient participation tended to use active music activities. The results of this study present baseline data on how family-centered care can be included in music interventions in medical settings in Korea, suggesting future studies to systematically analyze music interventions for family caregivers in terms of diversified patient- and caregiver-related factors.

• Journal of Music and Human Behavior
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• v.16 no.2
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• pp.79-108
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• 2019

The purpose of this study was to systematically examine the effects of music interventions on the psychological and emotional well-being of adolescents with Internet addiction. Electronic databases were searched for combinations of terms related to adolescents, Internet addiction and related disorders, music intervention, and psychological and emotional outcomes. A total of nine studies that were published between 1995 and 2018 were identified and included in the final analysis. Among the included studies, six studies targeted middle school students and included both males and females. For outcome variables, anxiety and self-control were most frequently targeted. The most frequently used genre of music was popular Korean songs. In terms of intervention effects, the studies that used songwriting as a therapeutic technique showed positive results. Only four studies reported a rationale for their interventions and linked interventions to the target goals. This study discusses how music therapy interventions for adolescents with Internet addiction should be designed to effectively address the psychological and emotional issues of this young population.

• Journal of Music and Human Behavior
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• v.12 no.2
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• pp.37-60
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• 2015

The purpose of this study was to systematically review music intervention studies for patients with schizophrenia. The researcher searched nine electronic databases for clinical trials published since 2000, using combinations of keyword related to schizophrenia and music interventions. The initial search identified 272 studies, and fifteen studies were selected by reviewing the titles, abstracts and full articles, In addition, three articles were added by examining other review articles. Thus, a total of 18 articles were analyzed in terms of their general and intervention characteristics, and the PEDro scale was used to evaluate the methodological quality of the included studies. The results demonstrated that, due to the lack of randomization and blinding, the methodological qualities of the studies with high quality music interventions were often rated low. Eight Music interventions conducted by qualified music therapists included active music-making, therapeutic relationship, and supervision systems for improving intervention quality. In conclusion, the randomization, blinding, and the therapeutic rationale of intervention are recommended in future clinical trials for patients with schizophrenia.

• The Journal of the Korea institute of electronic communication sciences
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• v.12 no.5
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• pp.777-782
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• 2017

The Signal Intelligence (SIGINT) system based on the adaptive beamformer, comprised of the AOA estimator followed by the interference canceller, is a cutting edge technology for collecting various signal information utilizing all sorts of devices such as the radar and satellite. In this paper, we present the efficient adaptive SIGINT structure consisted of an AOA estimator and an adaptive beamformer. For estimating AOA information of various signals, we employ the Multiple Signal Classification (MUSIC) algorithm and for efficiently suppressing high-power interference signals, we employ the Minimum Variance Distortionless Response (MVDR) algorithm. Also, we provide computer simulation examples to verify the performance of the presented adaptive beamformer structure.

• Proceedings of the Korea Information Processing Society Conference
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• 2013.11a
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• pp.357-358
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• 2013

의학의 발달로 인해 전세계적으로 인구의 고령화가 진행되어 노인 인구가 차지하는 비중이 갈수록 증가하고 있다. 본 논문은 고령자를 위한 작품으로 카메라와 FPGA Board, Touch Panel을 유기적으로 결합하여 음악감상과 운동효과를 가져올 수 있는 게임을 포함한 하드웨어기반 시스템을 소개한다. 간단히 공을 화면에 맞추는 게임과 손 모양 인식에 따라 음악을 제어할 수 있는 부분의 설계와 알고리즘을 기술하고 있다. 본 시스템은 노인들에게 편리하고 간단한 UI를 제공하여 실내에서 여가 시간을 보낼 때 부담이 가지 않는 운동을 할 수 있는 게임을 하며 음악을 들으면서 건강증진, 치매예방 및 심신을 안정시킬 수 있다. 본 시스템은 평균 77% 이상 동작인식성공률을 가진다.

• Journal of Digital Contents Society
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• v.19 no.4
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• pp.829-836
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• 2018

Sheet music is one of the inevitable elements for successful melody interpretation, playing or rendering, and performance, most of performing artists usually utilize a paper sheet music in the cases. However, the paper sheet music can be a one of the reason to degrade the concentration of audiences and artists or entire performing flows. In addition, it might be a weakness to use a paper sheet music in an outside performing place. We propose an electronic sheet music page tuner application, which can overcome these problems, based on a Tablet PC. The proposed page tuner application, which uses the OpenCV to adapt an eye tracking and behavior recognition, can provide an automatical page pass function to the performing artists. We will expect that the proposed application can highly decrease the weakness of paper sheet music.

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.48 no.4
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• pp.153-159
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• 2011

The MUSIC (MUltiple SIgnal Classification) method estimates the directions of arrival (DOAs) of the signals impinging on a sensor array based on the fact that the noise subspace is orthogonal to the signal subspace. In the conventional MUSIC, an estimate of the basis for the noise subspace is obtained by eigendecomposing the sample matrix, which is computationally expensive. In this paper, we present a simple DOA estimation method which finds an estimate of the signal subspace basis directly from the columns of the sample matrix from which the noise power components are removed. DOA estimates are obtained by searching for minimum points of a cost function which is defined using the estimated signal subspace basis. The minimum points are efficiently found through the Brent method which employs parabolic interpolation. Simulation shows that the simple estimation method virtually has the same performance as the complex conventional method based on the eigendecomposition.

• Asia pacific journal of information systems
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• v.20 no.2
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• pp.157-180
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• 2010

Rapid development of information technology has generated a new industry and market. In particular, network technology such as the Internet and other computer networks made transaction activities switched from traditional offline commerce to e-commerce. Among them, digital content is bit-based object which is created and distributed through electronic environment. In particular, many entertainment contents such as the music, the movies, and the computer game softwares are main products. Although digital content commerce has high potential demand, it lacks the consideration about the factor related to maintaining existing customer such as customer loyalty and switching costs. There has been a number of research on customer loyalty and other factors affecting it in the traditional electronic commerce environment, but there is a lack of research which examines the characteristics of digital content. The study about the effect of switching costs on customer loyalty in digital content commerce is necessary because the customers of digital content commerce market are from those of other e-commerce market or traditional offline commerce market. In addition, customer loyalty and switching costs are important factors because they may build up greater customer retention. For that reason, this study focused on examining the relationships among switching costs, antecedents for switching costs, and customer loyalty in online digital music service industry. The study has three major purposes: (1) to find antecedents of switching costs on digital content commerce and examine effect of antecedents for switching costs; (2) to identify effect of switching costs on customer loyalty in digital content commerce and examine moderating effects of alternative attractiveness; (3) to identify the differences of antecedents for switching costs by contents transmission type(streaming service and downloading service). And, the online digital music service industry is selected in this study since there are many users and transactions incurring. To accomplish these purposes, a survey questionnaire was developed and distributed to 256 informants. Survey instrument was developed based on previous research and pre-established survey items. Total of 206 surveys are collected and used in the data analysis. Among the respondents, 56.8% is male and 43.2% is female. Also, 86 responses were streaming service user group and 120 responses were download service user group. These data was analyzed using regression analysis. Major findings of empirical analysis can be summarized as follows. First, switching costs have positive effect on customer loyalty in digital content commerce environment. Second, the influence of switching costs on customer loyalty increases under conditions of high alternative attractiveness. Third, DRM convenience and breadth of use have positive effect on switching costs. The findings imply that the digital content provider should pay more attention to switching costs in addition to customer satisfaction in order to attract customers. Also, increasing the convenience of DRM use by securing the convenience of user interface and expanding the support device and increasing the service use scope by providing diverse value-added service helps to create a switching barrier. The result of the study can become a practical use in marketing strategy for maintaining existing customer. In particular, switching barrier is very important under conditions of high competition in the online music service market. This study can be used as a basis for further studies about customer retention in digital content commerce.

• Journal of Navigation and Port Research
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• v.36 no.10
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• pp.833-838
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• 2012

TDOA which is one of the position estimation methods is used on indoor positioning, jammer localization, rescue of life, etc. due to high accuracy and simple structure. This paper proposes the super-resolution TDOA estimator using MPM(Matrix Pencil Method). The proposed estimator has more accuracy and is applicable to narrowband signal compared with the conventional cross-correlation. Furthermore, its complexity is low because obtained data directly is used for construction of matrix unlike the MUSIC(Multiple Signal Classification) which is one of the well-known super-resolution estimator using covariance matrix. To validate the performance of proposed estimator, errors of estimation and computational burden is compared to MUSIC through software simulation.

• Proceedings of the Korean Magnestics Society Conference
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• 2008.12a
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• pp.296.2-296.2
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• 2008