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A Study on Sensitivity of Food Color (푸드 색채 감성에 관한 연구)

  • Kim Ji-Young;Na Jeong-Ki
    • The Korean Journal of Food And Nutrition
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    • v.18 no.4
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    • pp.385-394
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    • 2005
  • The objective of this study is to stimulate the satisfaction on food color sensitivity through objectifying the color sensitivities on customer's foods. The preference analysis on food sensitivity adjectives is measured on 5-point scale by preferring degree on each adjectives. And it is calculated on the sensitivities for the SD method that is used for finding whether it is strong or not on food image stimulus which was photographed on the 8 restaurants in Seoul. We found the outcome as follows. The most preferred sensitivity adjective is 'cleanness', and the worst preferred one is 'unshapliness'. It is differed on genders by $95\%$ confidence interval. The attractiveness, simplicity, richness, comfort and elegance are derived from the result of factor analysis for food color sensitivity. The yellow or orange color foods are main one for the simplicity and comfort. The orange color food are fit on richness and elegance factor, and it will be most effective if choosing the color more similar to brown one.

The Learning Preference based Self-Directed Learning System using Topic Map (토픽 맵을 이용한 학습 선호도 기반의 자기주도적 학습 시스템)

  • Jeong, Hwa-Young;Kim, Yun-Ho
    • Journal of Advanced Navigation Technology
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    • v.13 no.2
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    • pp.296-301
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    • 2009
  • In the self-directed learning, learner can construct learning course. But it is very difficult for learner to construct learning course with understanding the various learning contents's characteristics. This research proposed the method to support to learner the information of learning contents type to fit the learner as calculate the learner's learning preference when learner construct the learning course. The calculating method of learning preference used preference vector value of topic map. To apply this method, we tested 20 learning sampling group and presented that this method help to learner to construct learning course as getting the high average degree of learning satisfaction.

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Field Attenuation of Foam Earplugs

  • Copelli, Fran;Behar, Alberto;Le, Tina Ngoc;Russo, Frank A.
    • Safety and Health at Work
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    • v.12 no.2
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    • pp.184-191
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    • 2021
  • Background: Hearing protection devices (HPDs) are often used in the workplace to prevent hearing damage caused by noise. However, a factor that can lead to hearing loss in the workplace is improper HPD fitting, and the previous literature has shown that instructing workers on how to properly insert their HPDs can make a significant difference in the degree of attenuation. Methods: Two studies were completed on a total of 33 Hydro One workers. A FitCheck Solo field attenuation estimation system was used to measure the personal attenuation rating (PAR) before and after providing one-on-one fitting instructions. In addition, external ear canal diameters were measured, and a questionnaire with items related to frequency of use, confidence, and discomfort was administered. Results: Training led to an improvement in HPD attenuation, particularly for participants with poorer PARs before training. The questionnaire results indicated that much HPD discomfort is caused by heat, humidity, and communication difficulties. External ear canal asymmetry did not appear to significantly influence the measured PAR. Conclusion: In accordance with the previous literature, our studies suggest that one-on-one instruction is an effective training method for HPD use. Addressing discomfort issues from heat, humidity, and communication issues could help to improve the use of HPDs in the workplace. Further research into the effects of canal asymmetry on the PAR is needed.

Recovery of Catechin Compound from Korean Green Tea by Solvent Extraction and Partition (용매 추출과 분배에 의한 한국산 녹차로부터 카테킨 화합물이 회수)

  • 김정일;노경호
    • KSBB Journal
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    • v.16 no.5
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    • pp.442-445
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    • 2001
  • Catechin compounds as anticancer and antioxidant were target materials from Korean Green Tea in this work. The methodologies of solvent extraction and partition were utilized to recover catechin compounds from green tea and the optimal experimental conditions were found by comparing the degree of recovery as slovent. extraction times and operating temperatures. The extract was partitioned with chloroform, which was best fit to remove caffeine after the extraction of green tea with 80$^{\circ}C$ water for 40 min. Further, the resulting extract was partitioned in ethyl acetate layer to purify the catechin compounds of EGC, EC EGCG and ECG. This experimental result could be extended to preparative HPLC to obtain EGCG on a commercial scale.

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A Study on the Pattern by the Traits of Fabrics of Women's Tailored Jacket

  • Jang, Se-Eun;Sohn, Hee-Soon
    • Journal of Fashion Business
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    • v.11 no.6
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    • pp.101-114
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    • 2007
  • This research aimed to identify the differences, in terms of the pattern, of using wool and jersey for designing jackets and to provide a theorized solution. The object of this study is development of women's tailored jacket pattern by the traits of fabrics with fabrics those are generally used to develop the power of manufacturing technique about fit of jacket. Basic bodies prototype, graphics of sleeves prototype and graphics of jacket pattern those a clothing company at present(on&on, a brand of Beaucre Merchandising Co.,Ltd) is using were used as basics of tailored jacket pattern. Three kinds of fabric(wool, polyester, jersey) were chosen, we made jackets in the same manufacturing process of the clothing company, modified and made up for the weak points and then we compared and analyzed differences of pattern by the traits of fabrics, the results are as follows: 1) We drafted basic tailored style jacket pattern, made a jacket with wool fabric, made wearing experiment, modified and made up for the weak points by the trend, then developed JacketⅠ for study; 2) With JacketⅠ for study as the basic, we made a jacket with polyester fabric, made wearing experiment, modified and made up for the weak points, then developed Jacket II for study; 3) With JacketⅠ for study as the basic, we made a jacket with jersey fabric, made wearing experiment, modified and made up for the weak points, then developed Jacket III for study; 4) We presented final degree of polymerization of pattern with Jacket I II III for study; 5) We compared and analyzed the differences of pattern with the degree of polymerization of pattern with Jacket I(Wool) for study and Jacket II(Polyester), there was no change of size overall except extra amount which happens because of the trait of the fabric in 20 items of body format pattern, there were differences of size in 3 items(height of a sleeve, width of a sleeve, length of a sleeve) among 5 items of sleeves pattern; 6) We compared and analyzed the differences of pattern with the degree of polymerization of pattern with Jacket I(Wool) for study and Jacket III(Jersey) for study, there were differences of size by the kinds of fabric in 11 items(neck point to shoulder point length, Bishoulder point length, back interscye length, front interscye length, armhole circumference, depth of armhole, chest circumference, bust circumference, waist circumference, hip circumference, waist dart) among 20 items of body format pattern, there were differences of size by the kinds of fabric in 5 items(height of a sleeve, circumference of a sleeve, width of a sleeve, length of a sleeve, width of bottom of a sleeve) among 5 items of sleeves pattern.

Factor Structure, Validity and Reliability of The Teacher Satisfaction Scale (TSS) In Distance-Learning During Covid-19 Crisis: Invariance Across Some Teachers' Characteristics

  • Almaleki, Deyab A.;Bushnaq, Afrah A.;Altayyari, Basmah A.;Alshumrani, Amenah N.;Aloufi, Ebtesam H.;Alharshan, Najah A.;Almarwani, Ashwaq D.;Al-yami, Abeer A.;Alotaibi, Abeer A.;Alhazmi, Nada A.;Al-Boqami, Haya R.;ALhasani, Tahani N.
    • International Journal of Computer Science & Network Security
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    • v.21 no.7
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    • pp.17-34
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    • 2021
  • This study aimed to examine the Factor Structure of the teacher satisfaction scale (TSS) with distance education during the Covid-19 pandemic, as well as affirming the (Factorial Invariance) according to gender variable. It also aimed at identifying the degree of satisfaction according to some demographic variables of the sample. The study population consisted of all teachers in public education and faculty members in higher education in the Kingdom of Saudi Arabia. The (TSS) was applied to a random sample representing the study population consisting of (2399) respondents. The results of the study showed that the scale consists of five main factors, with a reliability value of (0.94). The scale also showed a high degree of construct validity through fit indices of the confirmatory factor analysis. The results have shown a gradual consistency of the measure's invariance that reaches the third level (Scalar-invariance) of the Measurement Invariance across the gender variable. The results also showed that the average response of the study sample on the scale reached (3.74) with a degree of satisfaction, as there are no statistically significant differences between the averages of the study sample responses with respect to the gender variable. While there were statistically significant differences in the averages with respect to the variable of the educational level in favor of the middle school and statistically significant differences in the averages attributed to the years of experience variable in favor of those whose experience is less than (5) years.

Characteristics of Male Diploma Nursing Students in Korea (전국 간호전문대학 남학생의 제특성에 관한 조사연구)

  • 김혜성
    • Journal of Korean Academy of Nursing
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    • v.9 no.2
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    • pp.63-72
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    • 1979
  • This study was performed to investigated of characteristics of male diploma nursing students. Data were collected by means of a mailed questionnaire. The sample included 29 respondents from 3 diploma nursing colleges during the period of Nov. 1st-15th, 1978. Major findings included. 1 ) Motive by which the objects of this investigation have chosen the science of nursing. Twenty-one (72.4%) responded, “As nursing occupation is a public welfare work, ”the highest rate, eighteen (62.3%) chose on advices of their parents and acquaintances. Seventeen (58.6%) reflected as a means of life with an occupation in hope of employment abroad. 2) Appreciation of nursing occupation. Twenty-two (75.9%) of opinions that the nursing job is called for by society was pre-dominent. While eighteen (62.1%) replied, “It is the job fit for the male sex, too.”“It is admitted as specialized occupation.”, or“It needs various human relation.”3) Degree of satisfaction wilt the science of nursing. Fifteen (51.7%) responded neither satisfied nor dissatisfied, while eight (27.6%) indicated as “satisfied”and four (13.8%) as“dissatisfied.”4) Degree of satisfaction with the faculty. Sixteen (55.2%) replied, “common, ”the highest, while ten (34.5%) indicated as“dissatisfied, ”two (6.9%) as“satisfied.”The reason for dissatisfaction with the faculty; The responses regarding dissatisfaction was twenty-three (79.3%) as insufficiency of the faculty. Thirteen (44.8%) indicated“the lack of personal cultivation of the faculty.”, And eleven (37.9%) indicated as“the quantitive shortage of the faculty, ”or“the vagueness of learning estimation.”5) Degree of satisfaction with the clinical, training. Eight (27.6%) responded as“common, ”or “dissatisfied, ”while seven (24.1%) indicated as“satisfied.”Reason for dissatisfaction with the training ; Twenty (69.0%) indicated“deficiency of personal treatment to the students of the men of business in the hospital”with respect to the reason, eighteen (62.1%) was indicated as gap between theory and practice, while eleven (37.9%) indicated“insufficiency of the equipment and materials of the hospital.”6) Interest in employment after graduation. Twenty-five (86.2%) indicated“going abroad”while fifteen (51.7%) indicated “education of nursing, ”which were the highest responses. Thirteen (44.8%) chose“Community Health Nursing (Health Center, Industrial Health).”7) Interest an employment during clinical nursing. Sixteen (55.2%) was interested in an operating room or the department of anesthesia, while fifteen (51.7%) was indicated “psychiatry, ”Eight (21.6%) chose a intensive care unit or a emergency room.

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Early-Stage Diagnosis of Cervix using the Polarization Sensitive Optical Coherence Tomography(A Preliminary Study) (편광 민감 광결맞음 단층 촬영 장치를 이용한 자궁경부의 조기 진단(A Preliminary Study))

  • Kang, Jin-Ho;Lee, Sang-Won;Yoo, Ji-Yeong;Kang, Moon-Sik;Kim, Beop-Min;Yoon, Bo-Sung;Kim, Young-Tae;Cho, Nam-Hoon
    • Korean Journal of Optics and Photonics
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    • v.18 no.5
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    • pp.367-372
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    • 2007
  • Cervical dysplasia induces morphologic changes in the cervical epithelium which involve changes in the nuclear/cytoplasmic (N/C) ratio. Since the nucleus is one of the significant scattering sources, the N/C ratio change reflects the degree of circular polarization (DOCP) with the depth of signals. Therefore, we used the polarization-sensitive OCT (PS-OCT) technique to measure the polarization changes caused by scattering. Cervical tissues were obtained from a high-grade squamous intraepithelial lesion (H-SIL) of one woman and from low normal women. We obtained the mean of the DOCP as a function of depth in the cervix and quantified the change ratio of the DOCP using slopes that were determined by linear fits in the epithelium layer. We found that DOCP of H-SIL decayed faster than that of normal tissue because of the higher scattering in H-SIL as expected. This result indicates that the PS-OCT system might be useful in measurements of change ratio of DOCP with depth for screening of cervical dysplasia.

Practice of Everyday Life Proprieties, Dynamics of Family Systems, and Psychological Well-Being Among Married Couples (도시부부의 생활예절수행, 가족체계역동성 및 심리적 복지감에 관한 연구)

  • 김연화;이정우
    • Journal of Families and Better Life
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    • v.21 no.2
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    • pp.1-18
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    • 2003
  • In recent years, Korean society has witnessed an increased interest in the observance of everyday life proprieties, building healthy families, and psychological well-being of family members. The main purpose of this research was to examine the relationships among the practice of everyday life proprieties, dynamics of family systems, and psychological well-being of Korean married couples. A self-report Questionnaire was used to collect data from married couples with a child over four-years-old who are currently residing in Seoul. 513 couples(1026 individuals) were used for the final data analysis. Statistical analyses were conducted using frequencies, percentages, means, standard deviations, Cronbach'α, Pearson correlation, paired t-test, factor analysis, and multiple regression. The findings of this study are as follows: First, the level of the practice of everyday life propriety was relatively high in both husbands and wives, and no significant gender difference was found in the level. Yet, there were some statistically significant differences in certain sub-dimensions. Wives showed a higher degree of performance in public decorum and social etiquette, whereas husbands exhibited a higher degree of performance in family decorum and communication manners. The family systems were highly dynamic, according to both husbands and wives, and there was no difference between husbands and wives. As for the sub-dimensions, the extent of communication was found to be higher among husbands than among wives. Psychological well-being was again relatively high for both husbands and wives, with husbands significantly higher than wives. Second, the findings indicate that the causal model did fit the data well, and that a myriad of background variables had direct and indirect impacts on psychological well-being, and these relationships were mediated by several variables in the sub-dimension of proprieties observance, family adaptability, and the degree of communication. The implication is that the practice of life propriety, an intervening variable, is crucial in improving psychological well-being of married couples. The findings of this research demonstrate that there are significant causal relationships among the practice of everyday life propriety, family systems dynamics, and psychological well-being. In addition, the observance of proprieties is shown to be a concept that can be used as an important predictor in the area of family resource management. Further research is needed to expand its focus on the practice of proprieties in the family resource management. More concrete and specialized family life education programs should be developed to help build healthy families. Lastly, the results indicate that proprieties education needs to be incorporated in family policies in order to promote the quality of family life.

Rapid Determination of Degree of Hydrolysis for Hemoglobin by Osmometry (Osmometry에 의한 Hemoglobin 가수분해도의 신속한 측정)

  • Chae, Hee-Jeong;In, Man-Jin;Kim, Dong-Ho;Kang, In-Kyu;Oh, Nam-Soon
    • Applied Biological Chemistry
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    • v.44 no.3
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    • pp.143-147
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    • 2001
  • An osmometrical method for determination of the degree of hydrolysis (DH) of hemoglobin was comparatively examined through TNBS (trinitrobenzene) sulfonic acid) method using two experimental variables $({\alpha}\;and\;{\beta})$, which were chosen based on correlation curves between hydrolysis equivalents (h) and $leucine-NH_2$ equivalents. DH values measured through osmometry and TNBS method highly correlated with $R^2$ values of $0.974{\sim}0.991$, irrespective of the reaction pHs and types of enzyme used. $DH_{osm}/DH_{TNBS}$ was >$1.438{\sim}1.656$ depending on the hydrolysis pH $7.5{\sim}10.0)$. Correlation euqations were well fit for measuring DH of Hb hydrolysate at different pH conditions. $DH_{osm}/DH_{TNBS}$ for co-treatment system using Esperase and Flavourzyme was 1.658, in good agreement with that of 1.656 for the single enzyme (Esperase) system. Thus, the osmometrical method was suggested to be a convenient, reliable, and rapid method for determination of DH of hemoglobin hydrolysates.

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