• Title/Summary/Keyword: behavior observation

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Observation of Juvenile Southern Bluefin Tuna (Thunnus maccoyi C.) School Response to the Approaching Vessel Using Scanning Sonar

  • Lee Yoo-Won;Miyashita Kazushi;Nishida Tsutomu;Harada Sei-Ichiro;Mukai Tohru;Iida Kohji
    • Fisheries and Aquatic Sciences
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    • v.5 no.3
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    • pp.206-211
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    • 2002
  • The aim of this study was to obtain the basic data on the fish school behavior change to approaching vessel and fish species identification by means of their swimming speed. The surveys were carried out for the juvenile southern blue fin tuna and other fish schools off Esperance, western Australia from January to March 1999. We observed changes of fish school behavior in response to the approaching vessel using 360-degree scanning sonar. The results showed that, a horizontal direction index used to quantify a change of fish school behavior did not identify dependence of a radial distance and a swimming speed. A Mann­Whitney test conducted using the horizontal swimming speed of both species identified by sonar specialists, did not reveal a significant difference.

Analysis of Verbal and Nonverbal Behaviors of Grandmothers during Young Grandchildren-Grandmother Picture Book Reading (영유아 손자녀와 그림책읽기 시 조모의 언어적·비언어적 상호작용 분석 연구)

  • Kim, Hye Jin;Kim, Myoung Soon
    • Korean Journal of Childcare and Education
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    • v.14 no.1
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    • pp.87-108
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    • 2018
  • Objective: The purpose of this study was to investigate grandmothers' verbal and nonverbal behaviors during young grandchildren-grandmother picture book reading. Methods: Participants were fifty-two children aged 22-42 months and their grandmothers. The researcher visited participating children's homes or child care centers and videotaped grandchildren-grandmother book reading activities. Each grandmother read two picture books for each observation. Grandmother surveys were administered after the reading activities. Parent surveys were completed by parents and were returned to the researcher. Results: First, grandmothers began reading picture books to grandchildren when children were 6 to 11-months-old or 12 to 17-months-old. They spent 5 to 10 minutes or 10 to 15 minutes at a time reading books. Second, grandmothers' most frequent verbal behavior during young grandchildren-grandmother picture book reading was 'explaining,' followed by 'questioning,' and 'providing feedback,' in that order. Grandmothers' MLU-eojeol during grandchildren-grandmother reading was 2.56. Their most frequently used nonverbal behavior was 'pointing,' followed by 'gestures.' Lastly, there was a significant difference in grandmothers' verbal and nonverbal behaviors during grandchildren-grandmother reading, depending on the grandmothers' characteristics. Conclusion/Implications: Grandmothers use various verbal and nonverbal behaviors during grandchildren-grandmother picture book reading activities, and there are significant differences in grandmothers' verbal and nonverbal behaviors with grandchildren based on grandmothers' characteristics.

A Study on Outdoor Behavior and Satisfaction of Children by the Physical Character of Outdoor Space of Housing Area in Daegu (I. 주거지 외부공간의 물리적 특성에 따른 아동의 외부활동 행태 및 만족도에 관한 연구 - 대구광역시 택지개발지구를 중심으로 -)

  • Kim, Myo-Jung;Kim, Soo-Young
    • Journal of the Korean housing association
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    • v.17 no.5
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    • pp.169-178
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    • 2006
  • The purpose of this study is to provide the guidelines for housing area that consider the children's outdoor behavior. This study was complemented the limit of study method of the previous studies limiting the subject to play space in APT. So, this study was progressed the analyzation of physical characters of outdoor spaces, the observation of children's activities behavior, and the survey of children's opinion and satisfaction. Especially, 2 objective housing areas of this study were selected the deferent areas. The deferents were the structure of street, the location shape of parks, and the physical characters(accessibility, network etc.). Finally, founding on the result of this study, the 7 guidelines of housing area for children were presented : play space, park & green space, space of around the education facilities, space of around the commercial facilities, street space, square, and parking lot. This study have means that expand the objective range and use the variety study methods.

The Characteristics of Living Behavior and Using Furniture and Home Appliances by Elderly-Headed Households (노인단독가구의 주행위와 가구.가전제품의 사용 특성)

  • Kwon, Oh-Jung;Lee, Yang-Min;Ha, Hae-Hwa;Shin, Hye-In;Kim, Hyung-Woo
    • Journal of the Korean housing association
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    • v.21 no.1
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    • pp.31-42
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    • 2010
  • The purpose of this study was to analyze behavioral patterns of elderly residents and to identify the characteristics of using furniture and home appliances by elderly-headed households. For this purpose, field studies that included observation and open-ended interview were conducted with 52 elderly-headed households. The major findings of this study were as follows: elderly-headed households need home appliances with lighter body, lower capacity and simple functions. Furniture for elderly people should be designed to minimize the inconvenience of using western style furniture, also the behavior patterns which are important to the elderly like taking medicine have to be considered. And it is necessary to design furniture and equipments properly to prevent accidents happened in housing. Lastly, because the elderly relies heavily on watching TV, it will be desirable to apply TV-friendly devices such as home networking and home automation. Research results will be useful information on product design to reflect characteristics of elderly and follow-up studies associated with each furniture and appliances and specific living behavior are needed.

A Study on the Influence of Fiber Orientation on the Mode I Interlaminar Fracture Behavior of Carbon/Epoxy Composite materials (탄소섬유/에폭시 복합재료의 Mode I 층간파괴거동에 미치는 섬유배향각의 영향에 관한 연구)

  • 이택순;최영근
    • Transactions of the Korean Society of Mechanical Engineers
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    • v.19 no.2
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    • pp.391-401
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    • 1995
  • Several tests of the Double Cantilever Beam(DCB) were carried out for influence of the fiber orientation on the Mode I of the interlaminar fracture behavior in the Carbon/Epoxy composites. The interlaminar fracture toughness of Mode I was estimated based on the energy release rate of Mode I, $G_{I}$. The fracture toughness at crack initiation, $G_{IC}$, increases from type A to type E. The fracture toughness, $G_{IR}$ , is almost constant macroscopically for type A and type E when crack propagates. $G_{IR}$ for types B, C, D increases rapidly at the beginning of the crack growth then it decreases gradually. The fracture surface observation by SEM was also obtained the same results. Consequently the influence of the fiber orientation on the Mode I Interlaminar fracture behavior was made clear.ear.

Shopping Orientation and Knitwear Purchasing Behavior of Female College Students in the U.S. (미국 여대생의 쇼핑 성향과 니트웨어 구매행동에 관한 연구)

  • Lee, Ok-Hee;Rucker, Margaret
    • The Research Journal of the Costume Culture
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    • v.13 no.1
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    • pp.161-173
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    • 2005
  • The Main objective of this study was to investigate the relationship between shopping orientations and Knit wear Buying Behavior of female college students in the U.S. age 18 to 33. The questionnaires for this survey were developed to measure knitwear purchasing behavior, including sources of information about knitwear, evaluative criteria of knit wear product, attributes f store preference for knitwear, and shopping orientation. The questionnaire was administered to 119 female college students in the University of California. The data was analyzed by percentage, frequency, mean, factor analysis, Cluster Analysis and ANOVA, Duncan Multiple Range test. The female college students were classified into five subdivisions by cluster analysis; cautious shopping group, recreational shopping group, self-confident shopping group, shopping indifferent group, price conscious shopping group. In the case of fashion information sources of knit wear, significant differences were found according to shopping orientation subdivision in observation of others' and famous people's clothing, fashion shows, fashion articles in magazines, newspapers, and on the Internet, and shop displays. The evaluation criteria of knit wear product were significantly different depending on shopping orientation subdivision in fashionable, brand and store name, appropriate for different occasion, prestige. The store attributes of knitwear were significantly different depending on shopping orientation subdivision in product knowledge of sales personnel, store atmosphere, display of merchandise, layaway payment plan, price level, ease of parking and access, and new fashion.

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Benefits Sought and Knitwear Purchasing Behavior of Female College Students in the U.S. (미국 여대생의 의복 추구 혜택과 니트웨어 구매 행동)

  • Lee, Ok Hee
    • The Research Journal of the Costume Culture
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    • v.14 no.4
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    • pp.542-555
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    • 2006
  • The main objective of this study was to investigate the relationship between benefits segmentation and knitwear purchasing behavior of college female students in the U.S. The questionnaires for this survey were developed to measure knitwear purchasing behavior and benefits segmentation. The questionnaire was administered to 119 female college students in the University of California. The data was analyzed by percentage, frequency, mean, factor analysis, Cluster Analysis and ANOVA, Duncan Multiple Range test. The female college students in the U.S. were classified into fourth subdivisions by the cluster analysis. In the case of fashion information sources of knit wear, significant differences were found according to benefits sought subdivision in observation of famous people's clothing, fashion articles in magazines and newspapers, TV advertisements, Newspaper advertisements, advice of salespeople, and Catalogs. The evaluation criteria of knit wear product of consumers were significantly different depending on benefits sought subdivision in design/style, quality of construction, fashionable, brand and store name, pleasing to others, prestige, and sexy. The store attributes of knitwear product of consumers were significantly different depending on benefits sought subdivision in friendliness of sales personnel, product knowledge of sales personnel, brand names, new fashion, and variety of products. The outlook for the industry of knitwear look to remain bright, there should be a continuous effort to research and invest in consumer satisfaction of knitwear.

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Acoustic observation of the behavior of fish in an artificial reef (수중 음향 기법을 이용한 인공어초에 서식하는 어류의 행동 특성)

  • Yoon, Eun-A.;Hwang, Doo-Jin;Kim, Ho-Sang;Lee, Seung-Joo;Lee, Kyung-Seon
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.50 no.2
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    • pp.124-130
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    • 2014
  • We aimed to assess the behavior characteristics of fish on an artificial reef using hydroacoustic techniques. The acoustical survey was conducted with a 200 kHz dual beam transducer while fishing on the stone combination reef of Uljin. A school of fish were detected on the artificial reef before sunset and floated on the artificial reef at 30 minutes after sunset. The density (Nautical Area Scattering Coefficient, NASC) of fish that floated on the artificial reef after sunset was about $600m^2/nmi^2$; similar observations (about $50m^2/nmi^2$ or less) were noted after 19:00 hours. Fish caught by fishing on the artificial reef were Sebastes schlegeli, Hexagrammos otakii, Sebastes thompsoni, and Conger myriaster. Resultantly, we demonstrated that hydroacoustic techniques are useful for detecting behavior characteristics of fish in the artificial reef. Such results can be used for basic data to estimate the install effect of the artificial reefs.

Compaction and Sintering Behavior of $Al_2O_3$-modified Ziroconium Titanate $(ZrTiO_4)$

  • Chun, Myoung-Pyo;Geun, Hur;Myoung, Seung-Jae;Cho, Jung-Ho;Kim, Byung-Ik
    • Proceedings of the Korean Powder Metallurgy Institute Conference
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    • 2006.09b
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    • pp.822-823
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    • 2006
  • The compaction and sintering behavior of zirconium titanate $(ZrTiO_4)$ was investigated by means of the measurement of sintering density and shrinkage, and the observation of microstructure. With increasing the content of $Al_2O_3$ additive, $Al_2O_3$-modified zirconium titanate samples fired at $1300^{\circ}C$ showed the anisotropic shrinkage behavior that the upper region of sintered body has higher sintering shrinkage than the low region. This difference of sintering shrinkage decreased with increasing firing temperature from 1300 to $1400^{\circ}C$. The SEM micrographs of powder compation show that the anisotropic shrinkage behavior is related with non-uniform density in a uniaxial compaction.

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Analysis of Effect of Urban Agricultural Experience Activities to Alleviate Problem Behaviors of Adolescents (청소년 문제행동 완화를 위한 도시농업 체험활동의 효과 분석)

  • Jung, Nam-Sick;Lee, Yong-Hak;Kang, Eun-Jee;Kim, Yong-Geun
    • Journal of Agricultural Extension & Community Development
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    • v.23 no.3
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    • pp.271-283
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    • 2016
  • The purpose of this study is to verify the effect of urban agricultural practice on the factors of adolescent problem behavior. The main findings of this study are as follows. First, as a result of measuring quantitative research, urban agricultural practice improves 16.7% of self-worth, reduces 28.1% of depression, and improves 19.4% of sociality, the factors of adolescent problem behavior, and statistical significance is confirmed in all lower measures. Second, as a result of measuring qualitative research, there are overwhelmingly many cases that most items change positively or are maintained in sentence completion test. Third, a positive change of mind in adolescent communication, cognitive and problem- solving abilities, and participation is confirmed through observation of program participation behavior. It is significant for this study to confirm that urban agricultural experiential activity has a positive impact on the factors of adolescent problem behavior, and to verify educational effects and social values of urban agricultural practice including the necessity of development and operation of urban agricultural program to solve youth problems.