• 제목/요약/키워드: Interesting areas

검색결과 167건 처리시간 0.024초

An Analysis on the Changes of Logistics Industry using Internet of Things

  • Lee, Seong-Hoon
    • 한국정보기술학회 영문논문지
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    • 제9권1호
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    • pp.57-66
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    • 2019
  • The Internet of Things is one of the most important technologies that can realize a super connective society. Efforts are being made to use the Internet in most areas of our society. In this flow, one of the interesting things that we see in our lives is the change in the logistics industry. The key to change is that it is likely to evolve continuously as it pursues unmanned activities. In this study, we examined the change of the logistics industry using the Internet of things. It also describes the necessary processes for efficient operation of the unmanned market

Science mapping of catalyst support for gas adsorption applications

  • Mazlee M. N.;Zunairah H.
    • Advances in materials Research
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    • 제13권3호
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    • pp.203-210
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    • 2024
  • Science mapping is a visual representation of the structure and dynamics of scholarly knowledge. Gas adsorption on catalyst supports is a crucial process in many catalytic reactions. The R package "Bibliometrix" and VosViewer software were employed for science mapping analysis. The results show that the upward trend but fluctuates from year to year for both annual scientific production and average article citations per year. Co-occurrence of the keywords were used to identify the primary fields of study and to map the existing state of research. Trending topics reveal some interesting features that support the growth of research in this field and are associated with emerging disciplines or areas of study that have not been extensively explored.

대도시 주민의 근린옥외여가시설 선택모형을 기초로 한 시설지 배분에 관한 연구 (A Study on the Facilities Distribution based on the Choice Model of the Outdoor Leisure-Facilities in a Neighbourhood Unit of the Megalopolis Citizens. -In terms of the Comparison of Choice Models and the Limitations of Use Areas between the Megalopolis-)

  • 최기수;김한배;진양교;진상철;허미선
    • 한국조경학회지
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    • 제23권1호
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    • pp.123-139
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    • 1995
  • The megalopolis citizens are reevaluating the expectant value and the perception of leisure aceording to increasing the level of their incomes, The leisure of citizens is increasing in the aspect of quantity and quality of life nowadays In the site planning of leisure, the concrete understanding about people's choice of a leisure site will be the most important thing, not only for the aspect of improvement of the quality of life but also efficiencies of the land use The purposes of chi study are firstly, to find out the factors which are influenced on a choice of Outdoor leisure facilities in neighbourhood unit and to Compare the Characteristics Of Choice models between the three metropolitan areas, secondly, to predict a limitation of use areal according to the change of a needed time based on the metropolitan's standard choice model For the choice model establishment this research used Logit Model which has been used in the field of the traffic, the tourism and the economics. This research made the results which find out the influencing variables with needed times, the accessibility and the percentage of facilities. The lindtations of use areas come out the results which are predicted according to the change of needed times as a most influencing factors. The range of each preferred leisure facility is about 956 meter distant in the neighbourhood park about 644 meter distant in the pocket park about 604 meter distant in the recreation center, about 628 meter distant in the tennis court about 974 meter distant in the private hob by facility and about 528 meter distant in the library from the apartment unit The recreation center and the library are nearer facilities than the other facilities. But these facilities are surveyed to be more or less influenced by an interesting progran, a context of events and the level of useful facilities, etc.

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Classifying Social Media Users' Stance: Exploring Diverse Feature Sets Using Machine Learning Algorithms

  • Kashif Ayyub;Muhammad Wasif Nisar;Ehsan Ullah Munir;Muhammad Ramzan
    • International Journal of Computer Science & Network Security
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    • 제24권2호
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    • pp.79-88
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    • 2024
  • The use of the social media has become part of our daily life activities. The social web channels provide the content generation facility to its users who can share their views, opinions and experiences towards certain topics. The researchers are using the social media content for various research areas. Sentiment analysis, one of the most active research areas in last decade, is the process to extract reviews, opinions and sentiments of people. Sentiment analysis is applied in diverse sub-areas such as subjectivity analysis, polarity detection, and emotion detection. Stance classification has emerged as a new and interesting research area as it aims to determine whether the content writer is in favor, against or neutral towards the target topic or issue. Stance classification is significant as it has many research applications like rumor stance classifications, stance classification towards public forums, claim stance classification, neural attention stance classification, online debate stance classification, dialogic properties stance classification etc. This research study explores different feature sets such as lexical, sentiment-specific, dialog-based which have been extracted using the standard datasets in the relevant area. Supervised learning approaches of generative algorithms such as Naïve Bayes and discriminative machine learning algorithms such as Support Vector Machine, Naïve Bayes, Decision Tree and k-Nearest Neighbor have been applied and then ensemble-based algorithms like Random Forest and AdaBoost have been applied. The empirical based results have been evaluated using the standard performance measures of Accuracy, Precision, Recall, and F-measures.

일부 도시 영세 지역 주민의 건강행위와 보건 의료 이용에 관한 연구 (A Study on Health Behavior and Utilization of Health Service of Residents in Low-Income Areas)

  • 정연강;한승의
    • 지역사회간호학회지
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    • 제5권1호
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    • pp.30-52
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    • 1994
  • The purpose of this study is to look into the health behavior and utilization of health service, and the factors which have influence on both of them. In order to research them, it visited home and interviewed selecting randomly 300 subjects who can understand the purpose of this study, want to participate and are possible to interview. Questionnaries survey was administered during the period from April.6 to May.12. 1993. Collected materials analysis were dealt with a method of SPSS PC Program and used percentage. Mean, SD. t-test, $X^2-test$, Pearson's Correlation Coefficient, Multiple Regression and One-way ANOVA for hypothesis verification. The results of this study are as follows. 1. The hypothesis is that there will be a significant difference in performance degree of health behavior by general characteristics(sex, age, educational background, occupation, religion) of subjects. According to the results, it turned out that sex(P=.035), educational background(P=.0432), and occupation(P=.440) appeared to be a significant difference as P<.05. 2. The hypothesis that the more interesting degree on health of subjects have, the better they performance for health behavior was supported (r=.2552, P<.001). 3. The hypothesis that the healthier subjects are, the better they performance for health behavior was supported(r=.5262, P<.001). The highest correlation was seen between the healthier subjects and health behavior. According to the results of multiple regression analysis with interesting degree on health and healthier subjects as dependent variables, it turned out that R2 was 35% and had a significant difference. 4. The hypothesis is that there will be a difference in the utilization of health service by general characteristics(sex, age, educational background, occupation, religion). According to. the results, it showed that educational background (dental clinic), religion(pharmacy) had an influence on the frequency of utilization of facilities (P<.05).

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고교 융합형 '과학' 교과서에 대한 학생들의 의견 (High School Students' Opinions about Fusing 'Science' Textbook)

  • 정진수;김동원;임재근;이윤정;김은애;임성만
    • 대한지구과학교육학회지
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    • 제5권2호
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    • pp.189-196
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    • 2012
  • This study was conducted using the phenomenological research method to collect and analyze high school students' opinions about fusing "science" textbook that reflect the 2009 Revised Curriculum. Ninety six students were chosen to be participants from 32 high schools that selected by city and province. The data collection was carried by individual interviews and group discussions. The results are as follow; students' opinions were summarized to 50 themes, and then classified to 9 theme clusters and 2 categories. Students' opinions were divided into a positive position - "it is good because interesting material associated with life", "the structure of textbook is good", "teachers' efforts make class interesting", and "it will help in career choices"- and negative position - "the content is difficult to understand", "the configuration is complex", "I have less interest about it because it doesn't related College Scholastic Ability Test", "teacher's explanation is insufficient", and "it is not associated with career choice"-. The living-related material and story-telling configuration received good reviews from students. On the other hand, the configuration of topics makes many concepts to use, so students have difficulty understanding the content and pointed out the lack of teachers' explanations about unfamiliar areas. In order to solve the difficulties, variety teaching material for fusing "science" will be developed.

보육시설 내 여성노인 자원봉사활동 도입을 위한 탐색적 연구 -보육시설 종사자를 대상으로- (A Study on the Elderly Women's Voluntary Activities for Child Nursing Facilities -Centering around workers of child nursing facilities-)

  • 심미영;정정숙
    • 한국가정과학회지
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    • 제8권1호
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    • pp.59-70
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    • 2005
  • The purpose of this study is to develop a program that allows older women to provide voluntary services for child nursing facilities, making those women have more social participation, effectively their spare time and ultimately improve the quality of their life. Results of the study can be described as follows. First, social requests about the use of older women as volunteers for child nursing services were analyzed to show that most people working at child nursing facilities perceived lack in the number of child nursing teachers. Those people recognized the need of using older women as service volunteers for the facilities. They were very positive about such use. Second, it is recommendable that volunteers of child nursing service should be not too much older women, or below 65. Voluntary activities that those women participate include taking care of younger children, reading interesting stories for children, helping works of child homes, teaching manners and living attitudes, instructing dietary etiquettes and cooking. Voluntary service activities should be made 1 to 3 times a week, 1 to 2 hours a time, considering psychological and physical states of older people. Third, such older volunteers should be educated about 6 areas, 'the operation and management of child homes, 'practices', 'child health and safety', 'the quality of child nursing', 'child development and counseling' and 'voluntary service training'. Out of these six areas, 'child health and safety' and 'voluntary service training' are more required to be instructed. such training needs to focus on activities in which older women can actually engage as volunteers. Fourth, it is advisable that the recruitment and management of such volunteers are led by the city and that the development of training programs for voluntary service activities and education of the volunteers are referred to universities.

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초등교육용 멀티미디어 컨텐츠 설계에서 아동 감성 기반 아이콘 평가의 필요성 분석 (Analysis on the Needs for the Evaluation of Icons on the basis of Children's Sensibilities in Designing Multimedia Contents for Elementary Education)

  • 한정혜;조미헌
    • 컴퓨터교육학회논문지
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    • 제5권3호
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    • pp.107-116
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    • 2002
  • 멀티미디어 컨텐츠를 활용한 교수 학습의 효과를 높이기 위해서는 인터페이스의 설계를 중시해야하며, 학습자들의 정의적인 특성을 또한 고려해야한다. 이에 본 연구는 초등교육용 멀티미디어 컨텐츠의 명령어 처리를 위한 인터페이스로서의 아이콘 설계에 초점을 두고, 아동과 성인으로서의 교사의 감성을 비교하여 감성의 차이 존재 여부를 확인함으로써 감성을 기반으로 한 아이콘 평가의 필요성을 제시하고자 하였다. 연구 결과, 아동이 교사보다 평균 감성이 더 풍부하다는 사실이 밝혀졌으며, 아동 집단 내에서는 도시지역의 아동들이 시골지역의 아동들보다 평균 감성 풍부성이 더 높다는 사실이 발견되었다. 그와 더불어서 아동과 교사지간에는 감성 풍부성의 차이뿐만 아니라 감성의 방향 즉 긍정 부정의 감성 반응을 보인다는 사실 또한 발견되었다. 이러한 결과는 아동들을 대상으로 한 멀티미디어 컨텐츠의 아이콘을 설계함에 있어서 아동의 감성을 기반으로한 평가의 필요성을 부각시켰다.

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중.고등학생의 식생활행동과 영양섭취 실태와의 관계 연구 (The Dietary Behavior and Nutrient Intake Status of the Yooth in Rural Areas of Korea)

  • 이건순;유영상
    • 대한지역사회영양학회지
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    • 제2권3호
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    • pp.294-304
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    • 1997
  • The purpose of this study was to explore the relationship between dietary behavior and the nutrient intake status in the youth of rural areas, based on their personal characters such as their sex, age, family type, number of family members, mother's age, occupation, and school career. This study was made by use of a self-administrated questionnaire with a 24-hour recall for 5days as an instrument with 439 randomly selected students. Statistical methods applied to analyze the data were frequency, percent, Willcoxon Rank-sum test, Kruskal-wallis test, x2-test by contingence table, and Spearman's correlation coefficient in non parametric statistical cases. Some of the interesting results are as follows : 1) The correlation between sex and breakfast is highly significant. That is, over 80% of male students had breakfast every day, whereas only about 60% of female students had breakfast every day. Bad table manners and some other problems are insignificant with respect to the personal characters in the relations between the personal characters and eating behaviors. However, the regularity of every meal, the frequency of having meals with other family members, and the frequency of meals eaten out and snacks show significant differences. 2) The mother's occupation does not have any influence on the nutrient intake of their students when the relationship between personal characters and nutrient intake was analysed. On the other hand sex, the mother's school career, the numbers of family members, the type of family, and the income of the family showed significant differences nutrient intakes. 3) The regularity and the frequency of having meals, meals eaten out with their family members, and the table manners during meals showed significant differences in the intake of nutrient elements such as calorie, protein, fat, fiber, calcium, iron, phosphorus, vitamin B1, vitamin B2, niacin and vitamin C. However some consideration during meals and problems in eating habit are insignificant with regard to nutrient intake.

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Powder Metallurgy for Light Weight and Ultra-Light Weight Materials

  • Kieback, B.;Stephani, G.;Weiβgarber, T.;Schubert, T.;Waag, U.;Bohm, A.;Anderson, O.;Gohler, H.;Reinfried, M.
    • 한국분말재료학회지
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    • 제10권6호
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    • pp.383-389
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    • 2003
  • As in other areas of materials technology, the tendency towards light weight constructions becomes more and more important also for powder metallurgy. The development is mainly driven by the automotive industry looking for mass reduction of vehicles as a major factor for fuel economy. Powder metallurgy has to offer a number of interesting areas including the development of sintered materials of light metals. PM aluminium alloys with improved properties are on the way to replace ferrous pars. For high temperature applications in the engine, titanium aluminide based materials offer a great potential, e.g. for exhaust valves. The PM route using elemental powders and reactions sintering is considered to be a cost effective way for net shape parts production. Furthermore it is expected that lower costs for titanium raw materials coming from metallurgical activities will offer new chances for sintered parts with titanium alloys. The field of cellular metals expands with the hollow sphere technique, that can provide materials of many metals and alloys with a great flexibility in structure modifications. These structures are expected to be used in improving the safety (crash absoption) and noise reduction in cars in the near future and offer great potential for many other applications.