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Estimating Simulation Parameters for Kint Fabrics from Static Drapes (정적 드레이프를 이용한 니트 옷감의 시뮬레이션 파라미터 추정)

  • Ju, Eunjung;Choi, Myung Geol
    • Journal of the Korea Computer Graphics Society
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    • v.26 no.5
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    • pp.15-24
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    • 2020
  • We present a supervised learning method that estimates the simulation parameters required to simulate the fabric from the static drape shape of a given fabric sample. The static drape shape was inspired by Cusick's drape, which is used in the apparel industry to classify fabrics according to their mechanical properties. The input vector of the training model consists of the feature vector extracted from the static drape and the density value of a fabric specimen. The output vector consists of six simulation parameters that have a significant influence on deriving the corresponding drape result. To generate a plausible and unbiased training data set, we first collect simulation parameters for 400 knit fabrics and generate a Gaussian Mixed Model (GMM) generation model from them. Next, a large number of simulation parameters are randomly sampled from the GMM model, and cloth simulation is performed for each sampled simulation parameter to create a virtual static drape. The generated training data is fitted with a log-linear regression model. To evaluate our method, we check the accuracy of the training results with a test data set and compare the visual similarity of the simulated drapes.

The Effect of Group Validation Therapy(V/T) in the Elderly with Dementia (집단인정치료(Group validation therapy)가 치매노인에게 미치는 영향에 관한 연구)

  • Chang, Woo-Shim
    • 한국노년학
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    • v.28 no.4
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    • pp.1023-1039
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    • 2008
  • The purpose of this study was to develop a group validation therapy(V/T) which could be implemented for the elderly with dementia in nursing home, and to evaluate the effectiveness of the program on cognition, ADL(Activity of Daily Living), depression, problematic behavior and QOL(Quality of Life). Subjects were recruited from 4 nursing homes in D city. The sample comprised forty elderly with dementia, capable of verbal communication. Each twenty were in an experimental and control groups. However, four elders with dementia dropped out in experimental and control groups due to personal affairs. Experimental group completed twelve consecutive group validation therapy sessions that combined centering, asking factual questions, rephrasing, identifying and using the preferred sense, asking the extreme, imagining the opposite, reminiscing, touching, maintaining eye contact and a caring tone of voice, observing, matching and expressing the emotion with emotion, using ambiguity, linking behavior with a basic human need, using music and mirroring techniques. Following the intervention, experimental group experienced a significant improvement in cognition, ADL, depression, and QOL. But it is a nonsignificant in problematic behavior on statistically. As a result, a group validation therapy should be applied as an effective and practical psychosocial intervention for the elderly with dementia.

Lu Xun's novel and art of color (노신(魯迅)소설과 색채예술(色彩藝術))

  • Bae, In Soo
    • (The)Study of the Eastern Classic
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    • no.32
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    • pp.51-69
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    • 2008
  • Lu Xun was closely bounded with art since he was young, and he had a thorough knowledge of art. This treatise discerned how Lu Xun substituted and expressed his emotion through his work of art, and what was characteristic of his selection and combination of colors. Truly, color is related to statement of human mind. Lu Xun expressed certain color either consciously or unconsciously when he created human figure. The group of black in human figure in his art is representative example of it. Lu Xun always used heavy and dark color to emphasize human figure so that people can assume their lives and character. This artistic mentality or, great choice of art, relates to Lu Xun's individual life and state of mind. However, Lu Xun did not always choose dark color. Sometimes he looked squarely at darkness and tried to pursue bright color presupposing 'hope' at the same time.

Physicochemical characteristics of hot-water leachate prepared from persimmon leaf dried after steaming or freezing treatment (스팀 및 동결 전처리가 건조 감잎 열수추출물의 이화학적 특성에 미치는 영향)

  • Hun-Sik Chung;Kwang-Sup Youn;Jong-Kuk Kim
    • Food Science and Preservation
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    • v.30 no.6
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    • pp.983-990
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    • 2023
  • This study was conducted to develop a preservation technology that can induce changes in physicochemical properties to effectively utilize of persimmon leaves. The application effects of steaming or freezing technique were investigated. Astringent persimmon leaves were steam-blanched (100℃, 30 sec) or frozen (-20℃, 15 d), followed by hot-air drying (50℃). The physicochemical properties of the extract obtained by hot-water leaching from the dried leaves were compared. The extract of leaves dried without pretreatment was used as a control. L* value was higher in steamed than in control and frozen. a* value was highest in the control. The browning index was higher in the frozen and lower in the steamed than in the control. Soluble solids were the highest in the steamed and the lowest in the frozen. Sucrose content was relatively high in the steamed, and the glucose and fructose contents were relatively high in the frozen. Total polyphenol content and DPPH radical scavenging activity were higher in steamed and lower in frozen than in control. Thus, it was confirmed that steam or freeze pretreatment after harvesting persimmon leaves affects the extraction yield, color, antioxidant capacity and component changes of dried persimmon leaves. Unlike steaming, freezing pretreatment showed the effect of promoting decomposition and browning reactions, and it is considered useful when such an effect is needed.

Analysis of Sleep Questionnaires of Patients who Performed Overnight Polysomnography at the University Hospital (한 대학병원에서 철야 수면다원검사를 시행한 환자들의 수면설문조사 결과 분석)

  • Kang, Ji Ho;Lee, Sang Haak;Kwon, Soon Seog;Kim, Young Kyoon;Kim, Kwan Hyoung;Song, Jeong Sup;Park, Sung Hak;Moon, Hwa Sik;Park, Yong Moon
    • Tuberculosis and Respiratory Diseases
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    • v.60 no.1
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    • pp.76-82
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    • 2006
  • Background : The objective of this study was to understand sleep-related problems, and to determine whether the sleep questionnaires is a clinically useful method in patients who need polysomnography. Methods : Subjects were patients who performed polysomnography and who asked to answer a sleep questionnaires at the Sleep Disorders Clinic of St. Paul's Hospital, Catholic University of Korea. Baseline characteristics, past medical illness, behaviors during sleep-wake cycle, snoring, sleep-disordered breathing and symptoms of daytime sleepiness were analyzed to compare with data of polysomnography. Results : The study population included 1081 patients(849 men, 232 female), and their mean age was $44.2{\pm}12.8years$. Among these patients, 38.9% had an apnea-hypopnea index(AHI)<5, 27.9% had $5{\leq}AHI<20$, 13.2% had $20{\leq}AHI<40$, and 20.0% had $40{\leq}AHI$. The main problems for visiting our clinic were snoring(91.7%), sleep apnea(74.5%), excessive daytime sleepiness(8.0%), insomnia(4.3%), bruxism(1.1%) and attention deficit(0.5%). The mean value of frequency of interruptions of sleep was 1.6 and the most common reason was urination(46.3%). Epworth Sleepiness Scale(ESS) had a weak correlation with AHI(r=0.209, p<0.01). When we performed analysis of sleep questionnaires, there were significant differences in the mean values of AHI according to the severity of symptoms including snoring, daytime sleepiness, taking a nap and arousal state after wake(p<0.05). Conclusion : On the basis of statistical analysis of sleep questionnaires, the severity of subjective symptoms such as ESS, snoring, daytime sleepiness and arousal state after wake correlated with the AHI significantly. Therefore the sleep questionnaires can be useful instruments for prediction of the severity of sleep disorder, especially sleep-disordered breathing.

Effects of vowel types and sentence positions in standard passage on auditory and cepstral and spectral measures in patients with voice disorders (모음 유형과 표준문단의 문장 위치가 음성장애 환자의 청지각적 및 켑스트럼 및 스펙트럼 분석에 미치는 효과)

  • Mi-Hyeon Choi;Seong Hee Choi
    • Phonetics and Speech Sciences
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    • v.15 no.4
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    • pp.81-90
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    • 2023
  • Auditory perceptual assessment and acoustic analysis are commonly used in clinical practice for voice evaluation. This study aims to explore the effects of speech task context on auditory perceptual assessment and acoustic measures in patients with voice disorders. Sustained vowel phonations (/a/, /e/, /i/, /o/, /u/, /ɯ/, /ʌ/) and connected speech (a standardized paragraph 'kaeul' and nine sub-sentences) were obtained from a total of 22 patients with voice disorders. GRBAS ('G', 'R', 'B', 'A', 'S') and CAPE-V ('OS', 'R', 'B', 'S', 'P', 'L') auditory-perceptual assessment were evaluated by two certified speech language pathologists specializing in voice disorders using blind and random voice samples. Additionally, spectral and cepstral measures were analyzed using the analysis of dysphonia in speech and voice model (ADSV).When assessing voice quality with the GRBAS scale, it was not significantly affected by the vowel type except for 'B', while the 'OS', 'R' and 'B' in CAPE-V were affected by the vowel type (p<.05). In addition, measurements of CPP and L/H ratio were influenced by vowel types and sentence positions. CPP values in the standard paragraph showed significant negative correlations with all vowels, with the highest correlation observed for /e/ vowel (r=-.739). The CPP of the second sentence had the strongest correlation with all vowels. Depending on the speech stimulus, CAPE-V may have a greater impact on auditory-perceptual assessment than GRBAS, vowel types and sentence position with consonants influenced the 'B' scale, CPP, and L/H ratio. When using vowels in the voice assessment of patients with voice disorders, it would be beneficial to use not only /a/, but also the vowel /i/, which is acoustically highly correlated with 'breathy'. In addition, the /e/ vowel was highly correlated acoustically with the standardized passage and sub-sentences. Furthermore, given that most dysphonic signals are aperiodic, 2nd sentence of the 'kaeul' passage, which is the most acoustically correlated with all vowels, can be used with CPP. These results provide clinical evidence of the impact of speech tasks on auditory perceptual and acoustic measures, which may help to provide guidelines for voice evaluation in patients with voice disorders.

Stereotactic Radiosurgery of 26 Intracranial Arteriovenous Malformations with Linear Accelerator (뇌동정맥기형 26예의 선형가속기를 이용한 뇌정위다방향 단일방사선치료)

  • Yoon Sei Chul;Suh Tae Suck;Jang Hong Seok;Choi Kyu Ho;Kim Moon Chan;Shinn Kyung Sub;Bahk Yong Whee
    • Radiation Oncology Journal
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    • v.10 no.1
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    • pp.21-26
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    • 1992
  • From July 1988 through November 1991,26 patients with inoperable arteriovenous malformations were treated with 6 MV linear accelerator at the Kangnam St. Mary's Hospital, Catholic University Medical College. There were 5 females and 21 males with median age of 29 years (range: $6\~63$ years) and median follow up times of 15 months (range: $4\~40$ months). The arteriovenous malformation volumes treated ranged from 1 cm diameter to 3.5 cm rectangular size. The prescribed doses at the isocenter varied from 15 to 30 Gy and were given as a single fraction. To date, all patients performed follow-up not only clinically but also through CT or angiography based radiologic modalities every 6 month. A complete obliteration was achieved in 6 ($23\%$) and partial obliteration in 8 ($31\%$) and no change in 1 ($4\%$). We observed 14 ($54\%$) responsiveness of arteriovenous malformations after radiosurgery by 2 years afterward. Whereas, the decision of the remaining 11 ($42\%$) patients was considered too early to expect the therapeutic response following radiosurgery. No complications through treatment related were observed, yet. Our initial outcome in these first 26 patients with arteriovenous malformations is recommended further follow-up.

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Adverse Effects of Chloral Hydrate in Neonates: Frequency and Related Factors (신생아에서 Chloral Hydrate의 부작용의 빈도와 관련 인자)

  • Lee, Ju-Young;Youn, Young-Ah;Kim, Soon-Ju;Lee, Hyun-Seung;Kim, So- Young;Sung, In-Kyung;Chun, Chung-Sik
    • Neonatal Medicine
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    • v.18 no.1
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    • pp.130-136
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    • 2011
  • Purpose: Chloral hydrate is a common drug frequently used for procedural sedation. But data on chloral hydrate use in the newborns are limited. This study examined the frequency of adverse effects of chloral hydrate and factors related to the adverse effects. We also examined if there were additional adverse effects when an additional sedative was used. Methods: The medical records of 104 patients admitted to neonatal intensive care unit of Seoul St. Mary's Hospital from March 2010 to February 2011 who used chloral hydrate for procedural sedation were retrospectively reviewed. Results: Adverse effects after administration of chloral hydrate were noted in 41.3% of the 104 patients. The adverse events included oxygen desaturation (18.8%), increase in apneic episodes (17.5%), increase in bradycardia (10%), and feeding intolerance (3.8%). Using oxygen at the time of chloral hydrate administration was independently associated with adverse effects (odds ratio [OR], 10.911: 95% confidence interval [CI], 2.082-57.178) and with the necessity for an additional sedative after administration of chloral hydrate (OR, 4.151: 95% CI, 1.455-11.840). Using one additional sedative agent after chloral hydrate showed no difference in adverse effects except feeding intolerance. Conclusion: Patients dependent on oxygen at the time of chloral hydrate administration may were found to be at higher risk for adverse effect of chloral hydrate and for an additional sedative. When an additional sedative is needed, it could be used with monitoring feeding intolerance after chloral hydrate administration.

Error analysis on factorization and the effect of online individualization classes (인수분해에 대한 오류 분석과 온라인 개별화 수업의 효과)

  • Choi, Dong-won;Heo, Haeja
    • Journal of the Korean School Mathematics Society
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    • v.24 no.1
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    • pp.83-105
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    • 2021
  • In this paper, we analyzed the misconceptions and errors incurred during factorization learning. We also examined whether online individualization classes had a positive effect on students' mathematical achievement. The experiment was conducted for 4 weeks (16 times in total) on middle school juniors in rural areas of Gyeonggi Province, where the influence of private extra education was small. In the class, the 'Google Classroom' was used as a LMS, the video lecture was uploaded to YouTube, and the teacher interacted with the students through "Zoom" and "Facetalk". In the online class situation, students' assignments and test answers were checked in real time through 'Google Classroom', and immediate feedback was provided to the experimental class group's students. However, for the control group students, feedback was provided only to those who desired. A total of 7 achievement evaluations were conducted in the order of pre-test, formative evaluation (5 times), and post-test to confirm the change in students' ability improvement and achievement. Through the formative evaluation analysis, it was possible to grasp the types of errors and misconceptions that occured during the factorization process. Students' errors were divided into four types: theorem or definition distortion error, functional errors such as calculation, operation, and manipulation, errors that do not verify the solution, and no response. As a result of ANCOVA, the two groups did not show any difference from the 1st to 4th formative assessment. However, the 5th formative assessment and post-test showed statistically significant differences, confirming that online individualization classes contributed to improvemed achievement.

Effects of Biomedical Ethics Education on Moral sensitivity, Critical thinking and Biomedical ethics Awareness of Nursing Students (생명의료 윤리교육이 간호학생의 도덕적 민감성, 비판적 사고성향, 생명의료 윤리의식에 미치는 효과)

  • Kim, Kyung-Ah;Jeong, Gye-Seon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.2
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    • pp.240-249
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    • 2019
  • The purpose of this study was to find the effect of systemic biomedical ethics education program on moral sensitivity, critical thinking disposition and consciousness of biomedical ethics nursing student. This study is a quasi-experimental research design and repeated measured ANOVA was used to analyzed the collected data statistically on this study. Data was collected from 1st September to 31 of December 2014. Nursing students and nurses in A and S cities participated in this study as subjects. 32 nursing students were assigned to an experimental group, and 33 nursing students were assigned to control group A, 26 nurses were assigned control group B, total subjects were 91. There are significant different in consciousness of biomedical ethics(F=3.432, p=.037). In the category of consciousness of biomedical ethics, there are significant different in 'right to life of fetus'(F=4.476, p=.014) and 'prenatal diagnosis of fetus'(F=6.207, p=.003), and 'right to life of newborn(F=6.207, p=.003) between experimental group and two control groups. The biomedical ethics education influenced the positive effect on moral sensitivity, critical thinking disposition and consciousness of biomedical ethics of nursing students, and shown the significant effect to enhance the consciousness of biomedical ethics for nursing students.