• Journal of Convergence for Information Technology
• /
• v.10 no.7
• /
• pp.223-231
• /
• 2020

Older drivers have an increased risk of accidents due to poor function, but they also develop self-regulation ability to check their own changes. Thus, information on whether the actual elderly driver responds to changes in driving ability and risk may provide a meaningful basis for the clinic and research of the elderly's driving ability assessment. Therefore, the purpose of this study is to provide basic data for the evaluation of elderly drivers by analyzing the driving risk self-perception characteristics in terms of driving behavior and function with Korean elderly drivers. A self-reporting assessment was conducted on 500 elderly drivers living in the community and the characteristics of driving risk perception were analyzed. As a result, it was confirmed that many elderly drivers are aware of the driving risk when their vision and hearing are impaired or when they find it difficult to adapt to changes in driving conditions. On the other hand, the characteristics of insensitive reactions to changes in medical health conditions, such as drug use or epilepsy, seizures, and loss of consciousness, were identified. The researcher hopes this study will contribute to the safety management of elderly drivers in Korea, where aging is accelerating.

• Journal of Korean Society of Transportation
• /
• v.27 no.5
• /
• pp.63-74
• /
• 2009

One of the effective countermeasures for preventing traffic accidents is to provide traffic safety warning information to drivers. Provision of warning information would lead to safer driving to avoid accident occurrence. This study investigated the effects of in-vehicle warning information on driver's behavior. A variety of warning information contents using text, sound, and pictograms were prepared for the field experiments. Individual vehicle speed and acceleration data, which represent quantitative drivers' behavior in response to in-vehicle warning information, were collected using differential global positioning systems (DGPS). Statistical analyses including ANOVA and Tukey's pairwise comparison were conducted. It is expected that the results could be invaluable for designing more effective warning information.

• 모자간호학회지
• /
• v.2 no.1
• /
• pp.34-44
• /
• 1992

지난 10년 동안 구미에서는 부모-아동 관계 영역에 혁신을 가져왔다. 특히 부모-아동 애착이론의 획기적인 변화로 가족 중심 출산 경험을 강조하고 있다. 과거에는 남편이 아내의 출산에 참여하던 것이 타부시되어 왔지만 애착의 개념이 대두되면서 남편도 출산에 함께 참여하도록 고려하여 임신에서부터 부부가 함께 이 과업을 완수하도록 모든 환경을 변화시키고 있다. 애착이론은 다양하여 정신분석이론, 학습이론, 인지발달이론과 동물 행동학적 측면에서 이해되고 있다. 다양한 이론적 배경과 개념들을 가지고 아버지-아동의 애착 및 유대관계에 대한 연구가 지난 10여년 이상 되어오고 있다. 가장 관심의 촛점이 되어 연구 되어온 것으로는 애착형성을 위해 중요하다고 하는 민감한 시기(Critical period)를 중심으로 애착의 특성인 시각, 청각, 촉각, 상호호혜적 관계, 긍정적 애정을 바탕으로 연구되어졌다. 이 연구는 부아 애착(Paternal Infant Attachment)의 연구를 연구방법, 측정도구 및 방법상문제와 변수들을 중심으로 재정리하여, 이 분야에 있어서 앞으로의 연구 방향을 살펴보았다. 17편의 연구들을 각각 년도, 표본수, 방법 및 측정, 결과 및 비고난을 비교 분석하여 도표를 작성하였다. 이론적 기틀과 문헌고찰에 근거하여 다음과 같은 적용과 제언을 한다. 1. 출산전 아버지의 특성에 대한 사정이 필요하다. 2. 연구자가 집단간 비교를 용이하게 하기 위해 연구전에 표본의 특성을 정확히 기술해야 한다. 3. 부모와 아버지의 과거력에 대한 상세한 정보수집이 강조되어야 한다. 4. 앞으로의 연구는 이론적 모델에 근거하여 이루어져, 대중교육 뿐 아니라 정책 결정에 기여해야 한다. 5. 연구결과 평가와 해석을 위해 정확한 이론적 근거가 필요로 된다. 6. 간호연구는 부적절한 부아 애착 형성에 있어서 아버지의 특성을 확인하고 부아유대와 애착 증진의 요소를 파악해야한다. 7. 부아 유대에 대한 위협요소 확인을 위한 도구개발과 그들에 대한 효과적인 간호전략이 필요 된다. 8. 가족에 있어서 모든 부모행위가 하나의 독립변수로서 연구되어야 하고 부아유대 증진에 관한 연구가 시도되어야겠다. 오늘날 부모들은 임신기간동안 많은 정보에 접하기를 원한다. 산전, 산후의 교육과 지식은 긍정적인 부아 관계를 증진시키고, 이것은 아동의 발달에 크게 기여할 수 있다. 긍정적으로 이러한 관계는 가족단위를 강하게 통합시키게 되므로 건강관리자(Health care workers)들은 애착에 대해 높은 관심을 갖어야 하겠다.

• (The) Research of the performance art and culture
• /
• no.22
• /
• pp.45-61
• /
• 2011

Performers of 'Seoul Jinjinokigut' point to aesthetics of performance centered on sense of sight, not sense of hearing. 'Seoul Jinjinokigut' is a kind of theatrical mode of performance, not narrative mode of performance. Performers of 'Seoul Jinjinokigut' succeed in making of relationships of harmonious fusion between 'social drama' and 'stage drama' through performing of Jinjinokigut. 'Seoul Jinjinokigut' is a kind of mode of performance that fuses life and death, not narratively but theatrically.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.29 no.6C
• /
• pp.770-776
• /
• 2004

The goal of perceptual audio coder is to reduce redundancy and irrelevancy of audio signal based on the concept of masking. Several studies on masking effect reveal that the masking threshold varies as a function of the noise-like or tone-like nature of audio signals. Therefore, tonality of audio signal influences significantly the quality and efficiency of perceptual audio coder In this paper, we propose a new effective algorithm for tonality measure using spectrum energy. Since the proposed algorithm consists of a few transcendental functions and simple operations, it has lower complexity than MPEG psychoacoustic model-II. The proposed algorithm was tested with some audio signals, and DSP implementation showed that the proposed algorithm could be implemented with 3 MIPS. These results illustrate the efficiency of proposed algorithm in both performance and complexity.

• Journal of Korean Society of Forest Science
• /
• v.103 no.3
• /
• pp.473-482
• /
• 2014

The objective of this study was to understand the effects of soundscapes on forest landscape preference in the Baekdudaegan protected area. The study sites were selected in Jeombongsan and Sobaek National park selected within the Baekdudaegan. The landscape preference surveys were conducted by using landscape adjectives classified with Nature, Sound, Attractiveness, and Aesthetics. The comparative analyses examined the difference of preferences between only visual landscapes and visual landscapes with soundscapes. The research found out that soundscapes were associated with landscape characteristics, and positively correlated with the improvement in landscape preference. Thus, the research can infer that forest landscape assessment consider visual attributes as well as soundscape cues.

• The Journal of the Acoustical Society of Korea
• /
• v.11 no.3
• /
• pp.53-60
• /
• 1992

Many adaptive beamforming methods have been studied for interference cancellation and speech signal enhancement in telephone conference and auditorium. Main aspect of adaptive beamforming methods for speech signal processing is different from radar, sonar and seismic signal processing because desire output signal should be apt to the human ear. Considering that phase of speech is quite insensible to the human ear, Sondhi proposed a nonlinear constrained optimization technique whose constraint was on the magnitude transfer function from the source to the output. In real environment the phase response of the speech signal affects the human auditorium system. So it is desirable to design linear phase system. In this paper, linear phase beamformer is proposed and sample processing algorithm is also proposed for real time consideration Simulation results show that the proposed algorithm yields more consistent beam patterns and deep nulls to the noise direction than Sondhi's.

• Science of Emotion and Sensibility
• /
• v.4 no.2
• /
• pp.79-88
• /
• 2001

The objectives of this study were to investigate the relationship of sound parameters with subjective sensation and physiological responses, and to figure out the interrelationship between the subjective sensation and physiological responses. Sound parameters calculated were LPT, ΔL, Δf, loudness[Z], and sharpness[Z]. Subjective sensation was evaluated in 7 aspects(soft-hard, loud-quiet, pleasant-unpleasant, sharp-dull, clear-obscure, rough-smooth, high-low) by thirty participants. We acquired physiological responses when each fabric sound was presented to 10 participants. Physiological signals obtained in this study were electroencephalogram(EEG), pulse volume(PV), skin conductance level(SCL), and LF/HF of heart rate variability. The larger the values of loudness[Z] and LPT, the louder and the rougher the subjective sensation of the perceived fabric sound. Also, the larger the values of loudness[Z] and LPT, the harder, the duller, and the less pleasant. As LPT increased, PV decreased. Loudness[Z] increased in proportion to SCL and so did sharpness[Z] to LF/HF. As the sound perceived to be quieter and clearer, the relative power of slow alpha rose. As the sound perceived to be more pleasant and smoother, PV rose.

• Journal of the Institute of Electronics Engineers of Korea SC
• /
• v.38 no.3
• /
• pp.47-54
• /
• 2001

This study is to analyze the impedance response in human body by acoustic stimulation on acupoints and contrast parte; for objectification of the meridian substance. It is to verify meridian pathway and channel theory or bio-energy in body. This paper proposes to make an hypothesis about the underground water theory. The meridian has not tube or pipe line type channel but bio-energy flow along the channel similar to flowing pattern of underground water in body. It was analyzed the current characteristic or impedance response after acoustic stimulation by sound wave of 5 specific tones. The response characteristics of current stimulation are measured by the average current magnitude and variation ratio or meridian. The current variation ratio or Live Meridian(gung) 33.2%, Heart Meridian(sang) 30.7% Kidney Meridian (gak) 33.1%, Spleen Meridian(chi) 33.9%, Lung Meridian (wo) 30.7% are to be compared to contrast parts (non-acupoint and meridian). In experimental results, meridian is discrimination to non-meridian, and 5 vital meridians have a reciprocal relationship with sound wave of 5 specific tones.

• The Journal of Korean Academy of Sensory Integration
• /
• v.9 no.2
• /
• pp.41-49
• /
• 2011

Objective : This study aims to compare children with and without pervasive developmental disorders in terms of the sensory processing ability and behavioral characteristic of oral feeding. This study also aims to identify correlation between sensory processing and characteristics of eating. Methods : The subjects of this research were normal children and those who have diagnosis of a pervasive developmental disorder, aged from 4 to 6. The research instruments were composed of Short Sensory Profile (SSP), Brief Autism Mealtime Behavior Inventory (BAMBI) and Food Items of the Sensory Checklist. Data collection was done by a professional survey institute located in 10 cities including Busan, South Korea. The survey questionnaires were distributed to 455 parents of children with and without pervasive developmental disabilities through the survey institutes. Total 263 answers were collected out of 455 questionnaires (62%) and 154 answers were used in data analysis. Out of 154 answers, 45 were for children with pervasive developmental disabilities and 109 were for normal children. Data analysis was done to identify correlations between sensory processing and characteristics of eating such as eating behavior and oral feeding. Results : 1. There was a significant difference between children with and without pervasive developmental disorders in all area of sensory processing ability (p<.05). 2. There was no difference between children with and without pervasive developmental disorders in eating behavior (p=0.881) and oral feeding (p=0.324). 3. In the group of children with a pervasive developmental disorders, it is found that there is negative correlation between sensory processing, eating behavior and oral feeding (r=-0.384, p<.01). 4. A remarkable significant correlation was found between sensory processing and eating behavior especially in taste/smell sensitivity (r=-0.6, p<.01) and auditory filtering (r=-0.326, p<.05). The correlation between sensory processing and oral feeding was most significant in under responsiveness/seeking sensation (r=-0.372, p<.05) and auditory filtering (r=-0.382, p<.05). Conclusion : This study found that there are significant correlations between sensory processing ability and some characteristics of eating behaviors for children with pervasive developmental disorders. This information can be useful to develop a program to intervene eating behavior problems of children with pervasive developmental disorders.