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엄원섭,이성직,윤화중 충남대학교 1990 忠南科學硏究誌 Vol.17 No.2
The noise intensities were measured and its attenuations were investigated from various kinds of automobiles on heavy traffic road under the following conditions; 1. Measuring points were taken 7.5m and 15m from sound source. 2. The small, medium and large size of automobiles were chosen as sampling automobiles. 3. Noise intensities were measured from various kinds of automobiles with the speed of 40km/h below, 65km/h below, 80km/h below and 80km/h upper respectively. 4. The kinds of engine of automobiles were chosen both of gasoline and diesel engine. With the above conditions the varying of noise intensities were measured and with its results the attenuations of noise were calculated accordance with the frequency bands.
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Wha Weon Jung,Jeong Seon Yun,Jae Hee Lee 한국청각언어재활학회 2023 Audiology and Speech Research Vol.19 No.4
Purpose: The Spatial Hearing Questionnaire (SHQ) is a self-report subjective questionnaire that includes eight subscales, including “understanding of male, female, and child’s voice”, “music”, “localization”, “speech understanding in quiet, noise-front, and noise-separate situations”. The aim of this study was to examine the validity and reliability of the Korean version of the SHQ (K-SHQ) in cochlear implant (CI) users. Methods: Fifty-two adult CI users participated in this study. Internal consistency and test-retest reliability of the K-SHQ were evaluated. Concurrent validity was identified by comparing the K-SHQ responses with the “spatial hearing” subscale scores from the Korean version of the Speech, Spatial, and Qualities of Hearing Scale (K-SSQ). We also examined the construct validity of the K-SHQ through an exploratory factor analysis. Results: Overall, the greatest difficulties were obtained from the subscale of “localization”, with the least difficulties in the subscale of “speech in quiet”. Both internal consistency and test-retest reliability were adequate for CI users based on all 24 items and the 8-subscale responses of the K-SHQ. The “localization” subscale responses of the K-SHQ were significantly correlated with the “spatial hearing”subscale responses of the K-SSQ, demonstrating a good concurrent validity in relation to localization performance. The results of the exploratory factor analysis showed that two factors, “speech understanding” and “localization”, explained 73.2% of the variance. Conclusion: The K-SHQ showed satisfactory reliability and validity in evaluating speech understanding as well as spatial hearing abilities in cochlear implant users, especially in complex listening situations.
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카제인의 탈인산화가 카제인 미셀의 에탄올 안정성에 미치는 영향
신원선(Weon Sun Shin),문태화(Tae Wha Moon) 한국응용생명화학회 1995 Applied Biological Chemistry (Appl Biol Chem) Vol.38 No.3
Various artificial casein micelle systems were prepared from dephosphorylated whole casein, β- or κ-casein and their stabilities towards ethanol were assessed. Ethanol stability was lower in the micelle systems with dephosphorylated whole casein as compared to the artificial micelles prepared from native whole casein, and the stability decreased with the extent of dephosphorylation. The casein micelles with partially dephosphorylated κ-casein had a lower ethanol stability than those with native x-casein. Ethanol stability of the micelle system with dephosphorylated β-casein decreased as the degree of dephosphorylation increased. Progressive dephosphorylation of caseins in skim milk system resulted in a decrease of the stability towards ethanol. The decrease was less than that in the system with dephosphorylated individual caseins. Increase in pH of the artificial casein micelle systems in the range of 6.3∼7.2 led to an increased ethanol stability manifesting that the presence of serine phosphates contributes significantly to the stability towards ethanol.
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金亮媛,崔正和 서울大學校 農科大學 1986 서울대농학연구지 Vol.11 No.2
The purpose of this study was to investigate the effects of clothing on human physiological reponses. Wearing trials were done to measure skin temrerature, rectal temperature, heartrate, sweat rate, thermal sensation and comfort during the period of rest and exercise in six different clothings which were opened and closed designs made of cotton, polyster, and linnen, re㎝spectively, at two different air temperature,25 ℃ and 30℃,R.H.70℃ and air velocity, 18㎝/sec. The major results are as followings: 1. Mean skin temperature was higher closed design than opened in ployester and linnen clothing during the period of rest at30℃and 25℃. there was no significant difference between clothing designs during the periods of exercise at 30℃ and 25℃. 2. Rectal temperature was higher in closed design than opened design in cotton clothing during the period of rest at 30℃ and there was no significant difference between clothing designs during the period of rest at 25℃. But there was no significant difference between clothing designs during the period of exercise at 30℃ and 25℃. 3. There was no significant difference between clothing designs on heart rate and sweat rate during the period of rest and exercise at 30℃ and 25℃. 4. Thermal sensation and comfort were more comfortable in opened design than in closed design in polyester during the period of rest at 30℃, but closed design than opened in linnen clothing during the period of rest at 30℃. However, there was no significant difference between opened and closed designs during the period of exercise at 30℃. 5. From this point of view, physiological responses and thermal sensation and comfort change in air temperature, and clothing materials what parts of skin surface was covered, though the covering area of skin surface was same.
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崔正和,金亮媛 서울大學校 農科大學 1986 서울대농학연구지 Vol.11 No.2
The purpose of this study was to investigate the effects of clothing materials on human physiological responses. Wearing trials were performed to measure skin temperature, rectual temperature, heart rate, sweat rate, thermal sensation and comfort during the period of rest and exercise in three different clothing made of cotton, polyester, and linnen respectively, at two different air temperatures, 25 ℃and 30 ℃ The major results are as followings: 1. Mean skin temperature was lowest in linnen clothing during the period of rest at 30℃and the period of exercise at 25℃. 2. It was found that rectal temperature tended to decrease in cotton clothing during the period of rest at 30℃ but was highest in polyester clothing during the period of rest at25℃. Rectal temperature was highest in linnen colthing during the period of exercise at 25℃. 3. Heart rate was highest in polyester clothing during the period of rest at 30℃,while lowering of heart rate in linnen clothing during the period of rest at 25℃. And there was no significant difference of heart rate among other clothing materials during the period of exercise at 25℃ and 30℃. 4. Microclimate inside clothing was lowest in cotton clothing during the period of rest at 30℃but tended to increase in cotton clothing during the period of rest at 25℃. It was lowest in cotton clothing during the period of rest at 25℃. It was lowest in polyester clothing during the period of exercise at 30℃ and no significant difference was found among other clothing materials during the period of exercise at 25℃. 5. there was no significant difference among other colthing materals on sweat rate, heart rate,thermal sensation and comfort.
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안면골 골절에 대한 임상적 고찰 : 9 YEARS SURVEY
민경원,유정원,박철규,김진환,김석화,이윤호 大韓成形外科學會 1990 Archives of Plastic Surgery Vol.17 No.3
This retrospective study comprised 108 patients with facial bone fractures in various accidents and treated in the department of Plastic and Reconstructive Surgery, the Seoul National University Hospital during the past nine years from December 1980 to June 1989. The medical records of this 108 patients (150 fractures) were reviewed and analyzed in order to obtain the clinical pattern and understand the therapeutic tendency. The following results were obtained : 1) The Most prevalent age group was at third decade(46.3%). 2) Seasonally the highest inciedence was in summer(40%) followed by fall (25.0%), spring(21.3%), and winter(14%). 3) The most common cause was interpersonal assault(39%). 4) A total of 150 fracture site were found in the zygoma(32%) followed by mandible(26.7%), and orbit(17.3%). 5) The most prevalent cause in each fracture site were traffic accident in zygoma(35.9%) and orbit(61.5%), interpersonal assault in mandible(46.7%). 6) The most prevalent fracture site of mandible was angle(38.6%) followed by parasymphysis (26.3%), and condyle(19.3%). 7) Total cases of associated soft tissue injury was 99 cases(91.2%), the most common soft tissue injury site was face(55.7%) 8) The most prevalent time interval between onset and surgical treatment was 3 days~7days(29.6%). 9) Open reduction was used for 85.3% of total cases while 12.7% of total cases required closed reduction, and 2%of total cases treated conservatively. 10) Early bone graft was done in 6 patients(5.6%), and the most common fracture site requiring bone graft was orbit(72.2%). 11) The complication rate was 24.1% and the most common complications were associated with eye and lacrimal apparatus injuries(46%).
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