• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2004년도 추계학술대회논문집
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• pp.596-599
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• 2004

The media transport systems, such as printers, copiers, facsimile, ATMs, cameras, etc., have been widely used and being developed rapidly. In the development of those systems, the media feeding mechanism is an important key technology for the design and development of the media transport systems. In this paper, a multi-degree of freedom sheet model with dynamic contact conditions is presented to understand the mechanism of sticking and jamming. A sheet is modelled as a cantilever beam and the feeding velocity is assumed to be constant. The relation between the feeding velocity and the coefficient of friction for guaranteeing stable feeding is presented. Simulations are performed for a horizontal linear guide and a oblique linear guide, calculating the contact force and contact states of mass points.

• Journal of Multimedia Information System
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• 제8권3호
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• pp.167-174
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• 2021

This paper compares VR cinema with interactive cinema from an interactive perspective to examine cinemas as a new medium. Rather than revealing the difference through this, the focus is on presenting a methodology that understands the cinema in a new environment that is now standing at the starting point. The development of video technology is changing not only the external elements of content but also the internal storytelling method, but the lack of killer content has always been pointed out as a problem compared to the remarkable development of technology. Therefore, it is necessary to specify the characteristics and types of interactions represented by VR (virtual reality) and new media represented by interactive media and to present directions. Therefore, the types and characteristics of interactions were compared with VR film produced in line with the new phenomenon and interactive film . Through this, we would like to present the meaning and value of the new film format from a media perspective.

• 한국멀티미디어학회논문지
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• 제22권9호
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• pp.1046-1054
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• 2019

With regard to the diffusion of mobile Internet service and generational differences for Internet use, this study aims to explore the relationship between the Internet activities and privacy concern based on the media dependency theory. Using the Korea Media Panel data produced by KISDI in 2018, this study analysed 8,988 nation-wide samples to test the difference of Internet use in personal privacy concern among generations. The results of the study showed that there was statistically significant difference for privacy concern among generations. This study has an implication to reveal the phenomenon of 'privacy paradox' by showing that SNS use negatively influenced users' privacy concern.

• 보건교육건강증진학회지
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• 제4권1호
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• pp.41-64
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• 1987

The main objectives of the present study were to understand the knowledge and practice of breastfeeding mothers about the feeding and supplementary food and to analyze the factors related to it. The data for the present study collected from July 9 to July 31, 1984 for 302 mothers in Seoul. 1. The Knowledge of Breastfeeding Mothers about the Fee4ing and Supplementary Food (1) In the knowledge of mothers on the appropriate feeding pattern before 6 month, 69.3% of total women believed that breast-fed babies are healthier. There was a singificant difference in the type of feeding in order to education level, socio-economic state, and. mass-media exposure. (2) In the knowledge of mothers on an appropriate duration of lactation, the mean duration of breastfeeding is 8. 1 month. The duration of breastfeeding gradually decreases in order of education level, socio-economic state, mass-media exposure, and employment status. (3) In the knowledge of mothers on an appropriate time of introduction of supplementary food, the mean time of introduction of supplementary food is 4. 7 month. It is gradually decrease in order of education level, socioeconomic state, mass-media exposure, and employment state. 2. The Practice of Breastfeeding Mothers about the Feeding and Supplementary Food (1) The practice of mothers on infant-feeding before 6 month and that education level, socio-economic state and mass media exposure are the higher, the rate of breast feeding is the less. (2) The mean duration of breastfeeding is 9 month. It is 1 month longer the knowledge of mothers on an appropriate feeding pattern before 6 month. (3) The time of introduction of supplementary food is average 4.75 month. It is similar to the knowledge of mothers on an appropriate time about introduction of supplementary food. The result of this study indicate that the knowledge and practice of breast feeding is maintained comparatively high in low educated group, whereas it is noticeably decreasing among the high educated group. High educated group believed that the short duration of breastfeeding better than long, and they practiced breastfeeding so short period. And high educated group also thought early introduction of supplementary food is good for the babies health. Consequently, in this study, for the most part, elite group is found to have rather wrong opinions and practice about infant nutrition. Therefore the accurate information of infant nutrition is must be encouraged to mothers.

• 한국학교보건학회지
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• 제14권1호
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• pp.115-130
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• 2001

Dieting behaviors prevail among most women and are highly increasing among female adolescents who don't have to lose weight. The dieting behaviors of normal or low weight groups are highly related to the negative impact of health risk behaviors. We need a strategy for intervening in the dieting behaviors of relevant groups. With this background, a study was conducted to examine the current situation of dieting behaviors and related factors in middle school girls, and to provide guidelines for the relevant dieting group. This survey was carried out by self-questionnaires passed out to 901 middle school girls from 3 middle schools in Seoul. Data were collected from April 10th, 2000 to April 17th, 2000 and 794 respondents' data were finally selected for analysis. The instruments of this study were Shin's scale for effects of mass-media, Birleson's depression self-rating scale translated by shim, Rosenberg's self-esteem scale, Smilkstein's Family APGAR score translated by Yoon, Kim's school-related adjustment scale. The credibility of instruments was 0.41~0.83 in the pilot study and 0.70~0.86 in the main study. The summary of results was as follows: 1. The general characteristics of respondents were analyzed. In comparison of grade and dieting behaviors, the subjects of the group perceived that their body image was obeser than their real body image and their ideal body image was slenderer than their current body image. A dieter's body image was seriously distorted. 2. The dieting behaviors were analyzed. The Subjects' BMI was within the normal to low range -- they didn't have to lose weight. But actually 47.3% of the respondents were dieters. Their main dieting methods were exercise(71.8%), computer games(64.9%) such as DDR and pump, and intake reduction(64.1%). Most dieters were using desirable methods such as exercise and intake control. But unhealthy methods such as saunax, smoking and harmful drug-use were also used by a few dieters. The main reason for dieting was attractiveness. The chief resources of dieting methods were mass-media(67.8%), friends(64.3%), and parents & relatives(35.1%). Only a few subjects obtained the information from health professionals. While they were trying to lose weight, 42.1% of the subjects experienced side effects such as dizziness(45.0%), apathy(20.5%), appetite loss(18.5%), amenorrhea and the irregularity of the menstrual cycle(16.6%). 3. The relationship between dieting behaviors and factors was analyzed. Dieting behaviors were significantly related to the experience of menarche, the experience of dating with heterosexuals, perceived body image, self-esteem, depression, family's relationship, school instruction-related adjustment, school life-related adjustment, and the effect of mass-media. After that, the multiple logistic regression was used. The analysis revealed that dating, perceived body image, the experience of menarche and the effect of mass media were significant factors. In conclusion, strategies for preventing irrelevant dieting behaviors are urgently required to enhance female adolescents' ability to choose the right information from countless others and to recognize their optimum body image.

• 한국과학교육학회지
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• 제19권2호
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• pp.275-292
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• 1999

본 연구의 목적은 형식적 과학교육의 부각점과 과학보도 수용 태도를 조사하고, 형식적 과학교육의 부각점에 따른 과학보도 수용 태도를 분석하는 것이다. 형식적 과학교육의 외적 부각점은 특정한 학교 과학 교육의 구성요소가 부각되는 이유를 학교 과학교육의 구성요소 자체의 특징에 귀인하는 경우로, 형식적 과학교육의 내적 부각점은 응답자 자신의 믿음이나 인지적 활동에 귀인하는 경우로 정의하였다. 또한 해석이 긍정적인가, 부정적인가에 따라 긍정적인 부각점과 부정적인 부각점으로 구별하였다. 또한 과학보도 수용 태도는 과학보도에 대한 노출, 주목, 인지, 이해도, 신뢰도, 활용도의 여섯가지 범주로 이루어진다고 정의하였다. 이 정의에 따라 설문지를 개발하여 설문 조사를 실시하고 1,825명의 설문결과를 분석하였다. 형식적 과학교육에 대해 긍정적인 부각점은 초등학교과 중학교에서는 실험 수업이, 고등학교에서는 과학교사에 의해 주로 형성되는 것으로 나타났다. 부정적인 부각점은 초등학교과 고등학교에서는 강의식 과학 수업이, 중학교에서는 과학시험 및 성적에 의해 주로 형성되는 것으로 나타났다. 과학보도 수용 태도는 5점 척도 중 3점으로 약간 긍정적이라고 할 수 있으며, 과학보도에 대한 주목, 신뢰도 등이 다른 소범주보다 긍정적이 이었다. 전체적으로 학생보다 성인이 과학보도 수용 태도가 더 긍정적이었다. 과학보도 수용 태도를 결정하는데 영향을 크게 미치는 소범주는 과학보도에 대한 인지와 노출이었다. 상관분석 및 다중회귀분석 결과, 학교 과학교육의 외적 부각점보다 내적 부각점이, 그리고 좋아했던 시절의 과학시간의 부각점보다 좋아했던 시절의 과학시간의 부각점이 과학보도 수용 태도를 보다 많이 설명할 수 있다는 것을 알 수 있다.

• 한국가정과교육학회지
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• 제22권4호
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• pp.65-75
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• 2010

본 연구는 청소년들이 가지고 있는 다이어트에 대한 태도를 파악하고 올바른 다이어트를 실행하는데 도움을 주기 위한 기초자료를 제공하기 위하여 인구통계학적 특성과 체질량지수, 다이어트에 대한 관심도, 다이어트에 대한 인식도, 자아존중감, 신체이미지, 체형에 대한 부모, 친구, 대중매체 영향요인이 다이어트 실행에 미치는 영향력에 대하여 살펴보았다. 본 연구의 자료는 경북지역의 고등학생으로부터 설문지를 통해 수집되었으며, 최종 360부의 설문지가 최종분석자료로 이용되었다. 다이어트 실행집단과 비실행집단 간의 체질량지수, 다이어트에 대한 관심도, 다이어트에 대한 인식도, 자아존중감, 신체이미지, 체형에 대한 부모, 친구, 대중매체 영향요인을 비교해보면, 다이어트 실행집단은 비실행집단에 비해 체질량지수가 높고 다이어트에 대한 관심이 많으며 다이어트에 보다 긍정적으로 인식하고 있고 자아존중감과 신체이미지에 대한 만족도가 낮으며 체형에 대한 부모, 친구와 대중매체의 영향을 많이 받고 있는 것으로 나타났다. 또한 로지스틱 회귀분석 결과, 체질량지수, 다이어트에 대한 인식도, 신체이미지, 체형에 대한 친구의 영향, 체형에 대한 대중매체의 영향이 다이어트 실행 여부에 유의한 것으로 나타났다.

• 대한지역사회영양학회지
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• 제19권6호
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• pp.550-557
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• 2014

Objectives: This study was conducted to examine the preferences and needs of typical Korean females adults for food and nutrition information provided by the mass media. Methods: A total of 343 females (77 in their 20s, 85 in their 30s, 88 in their 40s and 93 in their 50s) residing in the Seoul/Gyeonggido area was surveyed on general characteristics, main sources of food and nutrition information and needs for sources and contents of nutrition information. Results: The survey showed that typical Korean females obtained knowledge of food and nutrition mainly through the Internet (30.4%) and broadcasting (29.0%). Typical Korean females were interested in 'dietary management for weight control' (21.9%), 'the prevention and treatment of disease' (20.0%), 'food safety' (16.8%), 'proper dietary habits' (14.6%), 'cookery' (11.8%), 'functional foods' (9.6%), 'restaurant details' (3.5%) and 'life-cycle-specific dietary guideline' (1.6%). Needs for food and nutrition program forms on TV were 'educational programs' (34.3%), 'documentaries' (20.8), 'expert lecture-style' (13.0%), 'entertainment programs' (11.9%), 'expert conversation' (11.4%), 'news-style' (4.6%) and 'public campaign advertisements' (4.0%). On the Internet, 38.6% of the respondents preferred to get information provided by food and nutrition-related institutions (38.6%) while 26.1% preferred webtoons for nutritional information. The favored forms in mobile applications were 'monitoring their diets' (29.5%), 'data-based texts information' (21.4%), 'experts feedback' (20.6%), 'communities' (15.1%) and 'games' (13.1%). The rates of the preference to obtain information from experts such as nutritionists and dietitians and doctorsor dietitian turned reporters increased markedly with older ages. Conclusions: Since the mass media is a main source of food and nutrition information for the general public, the effectiveness and accuracy of the information provided should be enhanced by taking the needs of the public into account. The quality of information should be improved by involving more nutrition experts.

• 대한간호
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• 제37권2호
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• pp.44-52
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• 1998

The purpose of this study is to inquire the people's views on nursing for nurses, correct the image of nurse and take it as basis to be applied on nursing education examining the image of nursing on Television drama playing important role of mass media. 22 nurses of the characters in drama is applied to the analysis object of this study by selecting 6 dramas of Television ones the nurse play on the prime time from June 1 to August 31 in 1997. Contents analysis method was used in Data Analysis, 4 items was used after Coders previously modify and compensate it based on research documents of 1m Milim(1996) 2 Coders made the Coding the article on each person by them seeing the recorded film making the Coding Paper each items is written by the character. The average of reliability degree was 90% which measured the reliability degree by the mathod of Holsti. The statisic method of frequency, percentage was used SPSS Program in data processing The results were as follows. 1. Relative importance of 86.2% nurses in drama was depicted as extra characters 2. The affair attitude of nurses shown on drama was revealed as mechanical(84.7%), passive(45.5%), dependent(54.4%) unkind(68.2%). 3. The activity of nurses was classified with professional! simple affair. The professional affairs such as I.V., Blood Pressure Check, Rounding, Nursing Recording, Patient Education, Assist of Operation, Assistant meal of Patient, etc is mainly depicted and the screen of simple affair such as Receiving telephone, Carrying Tray or Dragging, Stretcher Car, Dressing Car and or Wheel Chair than professional affair. 4. The appearance feature of nurses was shown on thin physique(68.2%), common stature(68.2), dirty costume(45.4%), common appearance(81.9%), unnoble action(63.6%). The image of nurses is illuminated as the exterial scene of technical affair such as assisting the doctors and affair focused on accident and educational activity of nureses or extended role is nor depicted on Television drama. Therefore, the people regard the nurse as sexual object with good appearance than professional worker working professional nursing We want the following, epigraph based on above conclusion. 1. The continuous research is required on the image of nurse shown on various mass media. 2. The later research is required on appliction strategy of mass media for advancing the image of nurse. 3. The research to strengthen the objectivity by comparing analyzed data on drama & analyzing it is required 4. Through the deep study, the standard to show a concrete and professional work of nurses to scenario writers of TV drama is suggested by the association. 5. The monitoring about the mass media must be activated, not by some nurses, on a national scale and much study on the basis of this is needed.

• Geomechanics and Engineering
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• 제30권5호
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• pp.449-460
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• 2022

Safe underground construction in a rock mass requires adequate ground investigation and effective determination of rock conditions. The estimation of rock mass behavior is difficult, because rock masses are innately anisotropic and heterogeneous at different scales and are affected by various environmental factors. Quantitative rock mass classification systems, such as the Q-system and rock mass rating, are widely used for characterization and engineering design. The measurement of rock classification parameters is subjective and can vary among observers, resulting in questionable accuracy. Geophysical investigation methods, such as seismic surveys, have also been used for ground characterization. Torsional shear wave propagation characteristics in cylindrical rods are equal to that in an infinite media. A probabilistic quantitative relationship between the Q-value and shear wave velocity is thus investigated considering long-wavelength wave propagation in equivalent continuum jointed rock masses. Individual Q-system parameters are correlated with stress-dependent shear wave velocities in jointed rocks using experimental and numerical methods. The relationship between the Q-value and the shear wave velocity is normalized using a defined reference condition. This relationship is further improved using probabilistic analysis to remove unrealistic data and to suggest a range of Q-values for a given wave velocity. The proposed probabilistic Q-value estimation is then compared with field measurements and cross-hole seismic test data to verify its applicability.