• Title/Summary/Keyword: Discomforts

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A New 3D Depth Reconstruction Method Adaptive to Various Environments (환경 적응적 3D 깊이 재구성 방법)

  • Kim, Jung-Un;Kang, Hang-Bong
    • Journal of Korea Multimedia Society
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    • v.19 no.2
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    • pp.271-279
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    • 2016
  • The recent development of the HD (High Definition) and UHD (Ultra High Definition) technology allowed the growth of 3D contents market. Yet the majority of the 3D contents in the market are strictly for 6.5 cm inter-ocular distance, causing various visual discomforts for the viewers who have different inter-ocular distance. Moreover, because the 3D contents are created for a fixed viewing distance, the change of the viewing distances when watching 3D contents can also cause visual conflicts. To solve this problem, we devised techniques that consider the environmental information of the viewer watching 3D contents. By analyzing the relationship between viewing distance, inter-ocular distance, and perceived depth, we created an adaptive content viewing system that reflects the viewer's environment to minimize any conflicts in watching 3D contents. From our experiments, we found that the performance of our adaptive content viewing system was reasonable.

자동차 조립공정에서의 작업자세 부하 평가 체계 구축

  • 정재원;정민근;김상호;이인석;이상민
    • Proceedings of the ESK Conference
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    • 1998.04a
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    • pp.36-39
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    • 1998
  • In this study, the postural stresses in automobile assembly tasks were evaluated through an experiment. We had 19 subjects who simulated 42 different working postures occuring in the automobile assembly tasks for1 min and rated their whole body discomforts subjectively. We sued a free modulus magnitude estimation technique, commonly used as a psycophysical rating technique, and fully trained the subjects for the technique. The postures were selected through the analysis of the characteristics of te automobile assembly tasks and the expected difficulties. The subjective discomfort rating data were normalized by min-max standardization method. The consistency of the rating data was guaranteed by the analysis of spear man rank-order. The postures were ranked on their ratings and the relationships between the whole body discomfort ratings, and joint discomfort ratings were analysed. It is expected taht a system for evaluating postural stresses, which was specific to automobile assembly tasks, can be developed based on the relationship and can also be expended to a general purpose system with a minor modification.

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The Mechanisms of Somatization (신체화의 기전)

  • Song, Ji-Young
    • Korean Journal of Psychosomatic Medicine
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    • v.4 no.2
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    • pp.262-268
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    • 1996
  • It is important not only understanding the underlying psychodynamic mechanism of the somatization but also understanding the somatization as a process where biological and sociocultural factors are acting as maintaining and exaggerating the primary vague somatic symptoms. Recently, among mechanisms of the somatization biological and cognitive aspect became more important than psychodynamics. When the doctors see patients complain physical discomforts without organic foundation, they should give attention to the mechanism of symptom amplification, misinterpretation, individual cognitive characteristics and learned behavior. Psychiatric disorders which show somatic symptoms should be also evaluated. Autonomic dysfunctions linked with stress would give some clues of the mystery of the mind-body relationship.

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Parametric analysis of the properties of a passenger car for the improved ride quality (승차감 개선을 위한 승용차 현가계 특성치의 파라메타 해석)

  • 임성수;이장무;민현기;이재형
    • Journal of the korean Society of Automotive Engineers
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    • v.15 no.1
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    • pp.73-80
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    • 1993
  • In this study, 3-dimensional linear and non-linear vehicle models are proposed to improve ride quality. The simulations of a vehicle passing over a bump were performed with those two vehicle models. The dynamic responses of the models were analyzed in time-domain and frequency-domain. Then, discomforts in each vibration axis and the combined-axes were evaluated based on the vibrations of the proposed models. The actual vehicle test results in time domain and frequency domain. Also, the discomfort values were compared. Then the validity of those two models were verified. Also, the design parameters of the suspension system are proposed for improving the ride quality.

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CLINICAL EVALUATION OF THE EFFECTIVENESS OF PEDICLED BUCCAL FAT PAD GRAFTS IN CLOSURE OF OROANTRAL COMMUNICATIONS (구강-상악동 누공의 폐쇄에 있어 유경 협부 지방 이식의 유용성)

  • Kim, Eun-Seok
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.26 no.3
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    • pp.297-300
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    • 2000
  • The author evaluated the effectiveness of pedicled buccal fat pad grafts for closure of oroantral communications. Nine patients with chronic oroantral communications and one patient with an oronasal communication were treated with pedicled buccal fat grafts. They were treated successfully in all cases, and there were no postoperative complications (i. e. shallow buccal vestibule), and minimal patient discomforts. It was concluded that this was a easy and time fast method for closure of oral defects and had wide application and high successful rate.

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A Study of Taste Sensation by Aging (미각의 증년적 변화에 관한 연구)

  • 김양희
    • Journal of the Korean Home Economics Association
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    • v.17 no.4
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    • pp.43-47
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    • 1979
  • In order to get taste sensation 116 male and 82 female subjects were tested by dropping solution on tongue. Table I shows the number of subjects in each selected age group. none of the subjects complained gastrointestinal discomforts and drinking and smoking habits were moderate (Less than 5 cigarettes a day). Taste sensation was elicited by applying standard tap water solutions of sucrose(sweet), , sodium chloride(salty), citric acid (sour) and quinine (bitter) on tongue. The dour concentrations of each solution are given in Table 2. The test were done about 1 hour after meal . A drop of approximately 0.1 ml of the lowest concentration of solution was placed on tongue. The number of subjects who recognized the taste of concentrations were recorded in each age group. The obtained results were as follows ; 1. The sweet taste sensation of each age group was more sensitive in female than in male. 2. Decreased level of sensitivity to sweet. salty, sour and bitter taste was detected in the 40 year age group. 3. Females tent to be more sensitive to taste than males generally.

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안모 비대칭 환자에서 편측 상악 구치부 분절 골절단술과 하악지 시상분할골절단술 및 급속 교정을 이용한 치험례

  • Yu, Jeong-Taek;Song, Seon-Heon;Kim, Su-Yong;Kim, Cheol;Park, Ji-Hun
    • The Journal of the Korean dental association
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    • v.44 no.2 s.441
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    • pp.133-138
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    • 2006
  • This is a report of one case about facial asymmetry involving maxilla & mandible. Le Fort I Maxillary Osteotomy & BSSRO is usually used for facial asymmetry patient involving maxilla & mandible. But Le Fort I Maxillary Osteotomy has demerits about more aggressive technique, more operation times, more discomforts of post operation nasal breathing than Unilateral maxillary Segmental Osteotomy. So we treated one patient successfully using Unilateral Maxillary Segmental Osteotomy, BSSRO & Post - Operation Rapid Orthodontics instead of Le Fort I Maxillary Osteotomy.

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A Study on Health Status of Elderly Women in Urban Area (도시 여성노인의 주관적 건강상태)

  • Cho, Dong-Sook
    • Women's Health Nursing
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    • v.12 no.1
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    • pp.61-69
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    • 2006
  • Purpose: The study was done to identify the perceived health status of elderly women and men, and define the difference between the two groups. Method: The subjects of this study were 209 elderly people over 60 years living in urban areas. The data was collected through personal interviews using questionnaires from September to October 2002. Data was categorized by content analysis and then data was analyzed with the SPSS program by frequency and Chi-square tests. Result: Elderly women complained of types of pain(leg pain, arthritis, lumbago, headache) more than elderly men. Elderly men complained about decreased levels of activities such as walking and general weakness. Elderly men and women have discomforts in daily living such as walking and doing household chores. First, elderly men and women want good health and improvement of health status. Second, women want happiness for their offspring, but men want to improve the government and the laws. Conclusion: Elderly women want relief from pain, but elderly men want an increased level of activity. The findings of this study give useful information to conduct health education and care for elderly women.

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A Study on Light-shelf system based on IT in Housing Space -Focus on Lighting Energy Saving- (주거공간을 위한 IT결합 광선반시스템 개발 연구 -조명에너지 저감을 중심으로-)

  • Ahn, Hye-Young;Lee, Heang-Woo;Kim, Yong-Seong
    • KIEAE Journal
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    • v.13 no.1
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    • pp.133-140
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    • 2013
  • The purpose of this study was to test the effectiveness of the light-shelf system combined with IT to save lighting energy in resident space. According to the multiple variables that affected intensity of illumination, various experiments were designed and conducted. The main findings of this study were following: (1)the optimal level of light-shelf system was formulated which met the appropriate range of intensity of illumination in living-room; (2)although the mixed light-shelf system indicated a high performance, it could often provide discomforts to residents according to the degree of exposure; (3)artificial lights using light-shelf system combined with IT showed a higher effectiveness than those using fixed light-shelf system displayed. This study provided initial information of light-shelf system formative processes that could contribute to the lighting energy diminution. Future studies should focus more on multiple approaches regarding different types of resident space planning.

Headache in the Retropharyngeal Abscess -A case report- (후인후부 농양에 의한 두통 -증례 보고-)

  • Lee, Young-Bok;Yoon, Kyung-Bong;Yoon, Kyoung-Seop
    • The Korean Journal of Pain
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    • v.9 no.1
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    • pp.191-194
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    • 1996
  • Headache is one of the most frequent discomforts in human. Its significance is often abstruse, as it may signal serious disease or represent only tension, fatigue, or a migrainous disorder. The International Headache Society(HIS) has developed a new classification and definition system of headache. Retropharyngeal tendinitis is an accepted cause of headache in the list of HIS classification. We experienced an reported a case of retropharyngeal abscess with severe occipital headache.

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