• Journal of the Korea Institute of Information and Communication Engineering
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• v.23 no.4
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• pp.407-415
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• 2019

Hearing - impaired children who have difficulty hearing and hearing go through pronunciation training. The purpose of this study is to provide the pronunciation training system based on digital contents that can be used for repeated hearing training while maintaining interest in hearing - impaired children. For this purpose, we conducted an interview survey for users and experts. Based on the results, we developed a digital content based pronunciation training system. Finally, to verify the effect of the digital service implemented, the user test was conducted for the hearing - impaired children. As a result of the interview, repeated training and interest factors were found to be essential factors affecting pronunciation training. In implementing digital services, we have used fairy tales and a variety of interactive elements to derive children's interests and designed a user flow that can train multiple words and sentences for effective repetition training. As a result of the test, this digital content was evaluated positively.

• New Physics: Sae Mulli
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• v.68 no.11
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• pp.1268-1274
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• 2018

Aircraft-warning lights are lights that are used to inform pilots in flight about the presence of buildings or dangerous objects. Currently, the light sources of most aircraft-warning lights have been replaced by light-emitting diodes (LEDs). However, the aircraft-warning lights that are installed do not meet the optical performance standards and may cause airplane collisions. Therefore, the use of such light poses a risk to aviation safety. In order to solve this problem, we designed a Fresnel lens with the same luminous intensity distribution ovef $360^{\circ}$ direction; thus, we collimated the light beam from the LED light source with a narrow beam divergence angle in the form of an array of aspheric pieces. After that, we designed and simulated an aircraft-warning-light optical system with a center luminous intensity of 20,000 cd and a vertical divergence angle of $3^{\circ}$ or more by optimizing the lens' tilt and the distance between the LED and the Fresnel lens.

• Journal of Practical Engineering Education
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• v.14 no.2
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• pp.341-350
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• 2022

In this paper, we propseded the Youngwoo keyboard to help the communication disorders experienced by patients with dysarthria. Existing methods for communication by patients with dysarthria include a letter board with consonants and vowels, a mouse using eye tracking, and communication assistance applications. However, there was a delay of more than 5 minutes per sentence, so there were many difficulties in communication. However, unlike the existing method, the proposed method has been improved so that the patient with dysarthria can communicate by completing the sentences with eye movements. In the conclusion and future work of this paper, the educational use value for Yeongwoo keyboard was analyzed, and it was shown that this training can be of great help to families with ALS patients. The proposed keyboard will be able to improve the difficulties of families by facilitating communication of patients with dysarthria.

• The Journal of the Acoustical Society of Korea
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• v.41 no.1
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• pp.99-107
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• 2022

This study attempted to analyze the consonant perception ability and errors and to verify compatibility items for hearing impaired children wearing hearing aids and cochlear implants using the Phoneme Perception Test for School-Aged children (PPT-S). As a result of the study, it was found that children with hearing impairments have more difficulty in perceiving final consonants than initial consonants. The hard type of PPT-S, in which the articulation method and articulation place of the target and foil words are similar, felt more difficult than the easy type. Among the initial consonants, the incorrect response rate for aspiration sound was higher. In the case of final consonants, the incorrect answer rate for 'ㄷ' and 'ㅁ' was relatively higher. There was no significant difference in the percentage of correct response rate according to the gender of the speaker. The above results can be usefully used as basic data for standardizing of PPT-S and evaluating the intervention effects before and after hearing rehabilitation with hearing impaired children.

• 한국노년학
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• v.27 no.2
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• pp.409-425
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• 2007

The purposes of this study were to compare the disability prevalence and its related factors between men and women. The data used for the analysis was the National Health and Nutrition Survey, 2005, and the instrument of measuring disability was the K-ADL which had been developed by Won(2002). Chi-square test and multivariate logistic regression were used to test the gender difference. In the bivariate analyses, women had more disabilities than men among the entire elderly and the young elderly. However, there was not gender difference of disability among the old elderly. After controlling for age and other factors related to disability, no gender differences in the prevalence of disability were found. However, in the same analyses for the individual activities of daily living, men had more disabilities than women for all the activities except bathing and incontinence control. In conclusion, women's higher prevalence of disability in the univariate and bivariate analyses were spurious, because it was disappeared when other related factors to disability were controled for and women's disability became lower than men for some activities of daily living.

• Journal of Science and Technology Studies
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• v.14 no.1
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• pp.3-33
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• 2014

Over the last forty years, the dominant perspective of social science on medicine has been the medicalization theory. It indicates the social process of expanding power of medical professionals by (re)defining the problems which were treated as non-medical phenomena(e.g. homosexuality, alcoholism, obesity, etc.) into "diseases" and thus the spheres of medical intervention. Meanwhile, rapid technoscientific changes in the medical field owing to the diffusion of biological sciences and information technologies since the mid-1980s and the accompanying emergence of new social arrangements such as bioeconomy and biological citizenship have led to the rise of a new social scientific perspective called the biomedicalization theory. This paper attempts to compare the two theories and assess their merits and demerits as a basic work to deepen the understandings of sociology and STS on contemporary medicine. And it also attempts to analyze their relative relevance through the case of mental disorder. The analysis on the case of mental disorder clearly shows that the medicalization in that area seems to have continuously proceeded since the early 19th centiry to the present. Furthermore, it also seems true that the five central processes of biomedicalization(except for risk surveillance technologies of mental disorder) have been observed and realized since the late 20th century. These results indicate that although medicalization has consistently proceeded, it has not been limited to the quantitative expansion of the medical field but been extended to the qualitative transformation asserted by the biomedicalization theory. Therefore, while the concept of medicalization is valid and significant even today, we can recognize that the concept of biomedicalization allow us to capture the new phenomena which cannot be properly and sufficiently captured by that of medicalization.

• Feed Journal
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• v.4 no.10 s.38
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• pp.132-137
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• 2006

목장 경영의 성공과 실패에는 여러 가지 요인이 작용하지만 연중 얼마나 적은 소가 도태되는가 하는 것 또한 아주 중요하게 생각해 보아야 할 사항이다. 낙농에 있어 거의 대부분의 질병이 산욕기에 발병하는데 산욕기(産褥期)란 분만으로 인한 상처가 완전히 낫고, 자궁이 평상시 상태가 되며 신체의 각기관이 임신 전의 상태로 회복되기까지의 기간으로 대개 분만 후 6~8주간을 말한다. 산욕기에 주로 발생할 수 있는 다양한 질병(산욕기 부전마비, 난산, 급성유방염, 제4위 전위증 등)들이 조기에 발견되어 적절히 치료되지 못하고 만성화되면서 전해질불균형, 에너지와 단백질의 섭취부족에 의한 영양장애로 허약과 지방간 및 케토시스 등으로 진행되어 결국 도태됨으로서 목장 경영에 있어 막대한 영향을 끼치는 것이다. 이러한 산욕기 질병의 주 원인은 건유기 사양관리에 있다. 건유기간 동안 체점수(BCS)의 변화를 최대한 줄이면서 분만전의 스트레스를 얼마만큼 줄일 수 있도록 관리하는가에 달려있다. 다시말해 분만 전 마지막 한달간에 건유에서 분만으로의 이행과정을 얼마나 매끄럽게 연결 지어주는가에 따라 산욕기 질병의 발생률이 결정되는 것이다. 본 고에서는 건유기 사양관리 소홀로 발생되는 산욕기 부전마비에 관해서 자세히 설명해 보고자 한다.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2014.05a
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• pp.242-243
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• 2014

In this study, industrial by-products including blast furnace slag, incineration ash and waste gypsum were used with recycled fine aggregates to manufacture the zero-cement mortar. The replacement ratio of anhydrite gypsum was fixed as 0, 10%, 20% the replacement ratio fo WA1 was fixed as 0.5% and 1.0%, respectively. It could be identified that when the replacement of gypsum was 20% and WA1 of 1.0%, the strength could be in the range of normal strength.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2014.05a
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• pp.222-223
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• 2014

In this study, industrial by-products including blast furnace slag, incineration ash and waste gypsum were used with recycled fine aggregates to manufacture the zero-cement mortar.The replacement ratio of dihydrate gypsum and anhydrite gypsum was fixed as 0 and 10%, the replacement ratio fo WA1 was fixed as 0.5% and 1.0%, respectively. It could be identified that when the replacement of gypsum was 10% and WA1 of 1.0%, the strength could be in the range of normal strength.

• Speech Sciences
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• v.13 no.3
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• pp.197-206
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• 2006

Perceptual judgement method is frequently used in evaluating dysarthric speech. Although most of speech pathologists and researchers focus on the 38 perceptual features provided by Darley, Aronson & Brown(1969) during evaluation, there are additional characteristics that may be useful to describe dysarthria in literature. We reviewed previous dysarthria literature and selected 46 perceptual characteristics that could be examined at various subsystems of speech production. We also provided explanations and rationale for the rating method for each of the perceptual characteristics. This attempt might aid to offer a basic ground for developing a diagnostic tool of dysarthria.