• Title/Summary/Keyword: Growth habit

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Growth Characteristics and Yield of New Variety Italian Ryegrass (Lolium multiflorum Lam.), "Oasis"

  • Jae Hoon Woo;Bo Ram Choi;Sang-Hoon Lee ;Ki-Won Lee
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.43 no.3
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    • pp.162-167
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    • 2023
  • The experiment aim to breed an early-maturing variety of Italian ryegrass (Lolium multiflorum Lam.). It was conducted at the Grassland and Forage Crops Division, National Institute of Animal Science, RDA, Cheonan, Korea, from 2022 to 2023. The new variety named "Oasis" is a diploid with green leaves and has a semi-erect growth habit in late fall, and an erect growth habit in early spring. With a heading date of May 10, Oasis is categorized as an early-maturing variety. Compared with the "Florida80" as a control variety, Oasis's flag leaf was 1 mm wider and 2 cm shorter, while the plant length was 7.8 cm longer. Additionally, the ear of Oasis was 1.2 cm longer than that of Florida80, and it showed lodging resistance. The dry matter yield of Oasis (8,805 kg/ha) was higher than that of Florida80. The total digestible nutrient and crude protein contents of Oasis were 64.5%, and 9.3%, respectively, which were 1.1% and 0.6% higher than those of Florida80, respectively. The neutral and acid detergent fiber contents in Oasis were 54.2% and 30.8%, respectively, which was 1.9% and 1.4% lower than those of Florida80, respectively. These results indicate that Oasis has good dry matter yield in the most of region and especially, middle and northern region of South Korea.

The Infant and Child Growth Assistance System Based on a Smartphone

  • Byun, Ki-Won;Kang, Joon-Gyu
    • Journal of the Korea Society of Computer and Information
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    • v.21 no.8
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    • pp.95-103
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    • 2016
  • Food habit forming the basis for a lifetime of food and nutrient intake is established in early childhood and has an effect to the child's growth, sociality, and obesity. A variety of nutrition screening tools exists for assessing the health and nutrition status of children such as the Growth Curve, for determining if growth is appropriate. Body mass index(BMI) as a more reliable index of overweight to prevent childhood obesity, and Nutrition Quotient(NQ) and eating behaviors questionnaire for young children and parents to estimate their nutrient intake adequate or not. Such tools are mainly used by health practitioners, such as doctor and dietitian to provide nutrition intervention services to children at risk, especially and are not easy to use for general parents, who need assessment at any time and at any place. We propose Growth Assistance System for infants and children, which is possible to assess their physical condition, nutritional status, and eating behavior integrated. To be convenient and portable, it is implemented over the smartphone as an application. The system offers the growth charts, the BMI curves, NQ and eating behavior questionnaire to take a monitoring and the functionalities operate well. We hereby expect this system support the normal growth and development of infants and young children. And also support for the health practitioner (dietitians and nutritionists) to take a role in providing nutrition counseling and education to children needing nutrition services.

High school students' Low-carbon green growth awareness and Eco-friendly Clothing attitudes (고등학교 학생들의 저탄소 녹색성장 인식과 친환경 의생활 태도)

  • Jeon, Yunhee;Koo, Insook
    • Journal of Fashion Business
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    • v.17 no.1
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    • pp.42-63
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    • 2013
  • The attitude of Eco-friendly clothing is based on environmental awareness and Low-carbon green growth awareness. It can be developed through our education. I studied and analyzed the survey which targeted on highschool students whether the recognition of low-carbon green growth can be effected to the eco-friendly clothing attitude or not, and school education effect. The research shows the green growth recognition affects significantly to the eco-friendly clothing attitude. Also the study proves the education of green growth awareness and the eco-friendly clothing attitude informs the realizations of environmental and green growth concepts. The education of clothing habits affects our eco-friendly clothing attitude. Therefore this education is necessary for school curriculum and it must be expanded in any areas both in 'environment and green growth' course and 'home economics' courses in secondary education. The education of Eco-friendly clothing habit should be keep researched specifically and develop further and further.

Growth and Characterization of L-Histidine Tetrafluoroborate Single Crystals as a New Laser Damage Resistant Material

  • YOKOTANI, Atsushi;TAKEZOE, Noritaka;KUMURA, Satoshi;KONAGAYISHI, Susumu;KUROSAWA, Kou
    • Proceedings of the Korea Association of Crystal Growth Conference
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    • 1998.06a
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    • pp.7-10
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    • 1998
  • L-Histidine tetrafluoroborate single crystals have been grown from the aqueous solution. The profitable pH value to grow large crystals, the relative flow rate to get clear crystals, crystals habit and the orientation of the obtained crystal have been clarified. We have also demonstrated that the LHBF crystal has very high damage threshold which is potentially good for generation of the phase conjugated waves.

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Baicalin Production in Transformed Hairy Root Clones of Scutellaria baicalensis

  • Hwang, Sung-Jin
    • Biotechnology and Bioprocess Engineering:BBE
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    • v.11 no.2
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    • pp.105-109
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    • 2006
  • A transformed hairy root clone of Scutellaria baicalensis was established following infection with Agrobacterium rhizogenes ATCC15834. Three root clones of S baicalensis were selected by growth habit and baicalin content. The most active strain-the SR-03 clone-was examined for its growth and baicalin content under various culture conditions. The root growth and baicalin content were maximized in a Schenk and Hildebrandt medium supplemented with 4 and 6% sucrose, respectively. The accumulation of baicalin in transformed hairy roots was enhanced through exposure to various elicitors. Elicitation was attained by the addition of methyl jasmonate, salicylic acid, and various concentrations of fungal cell wall elicitors to the medium. The accumulation of baicalin in the elicited cultures ranged from 10.5 to 18.3 mg/g dry weight of the roots, which was 1.5- to 3-fold the amount attained in controls.

Studies on the Sambucus silliamsii var. coreana Nakai for Landscape use (야생딱총나무(Sambucus williamsii var. coreana Nakai)의 조경식목 화를 위한 기초 연구)

  • 김정미;박용진;이기훤
    • Journal of the Korean Institute of Landscape Architecture
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    • v.21 no.1
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    • pp.139-148
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    • 1993
  • The present experiments have been conducted to find out the plant's growth environments habitate, mode of life, characteristic of photosynthesis, habit of growth and propagation. The results of this study are as follows: 1. Sambucus williamsii var. Coreana distributes around all sides of native site without having any relation to altitude, inclination and direction. 2. In the native site, Robinia pseudo - acacia and its neighboring species were Prunus yedoensis, Acer pseudo-sieboldianum, Lindera obtusiloba and Staphylea bumalda. From 21 to 41 types of species were located in the vegetation of the quadrat area. 3. According to the variation of leaf temperature with the result of the change of net photosynthetic rate, the optimum temperature for growth is $25^{\circ}C$. 4. The rooted rate of vegetative propagation was the highest at 100ppm IBA plot and the lowest at 200ppm BA plot. 5. The rooted rates of Sambucus williamsii var. coreana in perlite 50% bed, vermiculite bed and peatmoss 50%+sand 50% bed are higher than others.

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판상형 산화아연의 합성 및 응용에 관한 연구 동향

  • Jang, Ui-Sun
    • Ceramist
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    • v.20 no.4
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    • pp.55-73
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    • 2017
  • As one of the most versatile semiconductors, zinc oxide (ZnO) with one-dimensional (1-D) nanostructures has been significantly developed for the application of ultraviolet (UV) lasers, photochemical sensors, photocatalysts, and so on. Such 1-D nanowires could be easily achieved due to the anisotropic growth rate along the [0001] direction. However, such typical growth habit leads to decrease the surface area of the (0001) plane, which plays a central role in not only UV lasing action but also photocatalytic reaction. This fact lead us to develop ZnO crystal with enhanced polar surface area through crystal growth control. The purpose of this review is to provide readers a simple route to plate-type ZnO crystal with highly enhanced polar surfaces and their applications for UV-laser, photocatalyst, and antibacterial agents. In addition, we will highlight the recent study on pilot-scale synthesis of plate-type ZnO crystal for industrial applications.

Development of Nutrition Education Textbook and Teaching Manual in Elementary School (초등학교 고학년의 올바른 식생활 교육을 위한 활동중심의 영양교육 교재 및 영양교사용 지침서 개발)

  • Lee, Gyeong-Hye;Heo, Eun-Sil;U, Tae-Jeong
    • Journal of the Korean Dietetic Association
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    • v.11 no.2
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    • pp.205-215
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    • 2005
  • Health is easily overlooked because it doesn’t be changed good or bad due to sudden effort or indifference unexpectedly but kept in daily life. Especially, schoolchildren period, an important lifetime to develop both physically and mentally needs to be helpful to promote the growth of the body and keep well-balanced mind through balanced and nourishing diet. The purpose of this study was to develop nutrition education contents for discretional activities in elementary school. The present educational contents about food and nutrition was analysed in the curriculum of elementary school. The results showed the Korean language(20.8%) included an highest ratio in educational contents about food and nutrition, the next was the courses of physical education and wise life(18.1%, each). As the educational contents about food and nutrition in the textbook were dealt with food information (20.8%), Health․Disease(15.3%), and correct dietary habits by order. We could found more contents in the text for the higher classes than for the lower classes. But the most of the contents appeared lack of structure, profundity and continuity for the systematic nutrition education in its entirety. The developed nutrition education contents for discretional activities in this study consist of korean dinning cultures and foreign dinning cultures, correct dinning etiquette, how to choose healthy food, personal sanitary and health, nutrients and food tower, and problem for children’s nutrition as main subject. This six main subjects were composed of 23 subtitles. The teaching manual consisted of the educational goal, background, teaching plan and effect-evaluation plan, and the notice point for the effective lesson. The teaching plan was made for 30 hours and consisted of cooking course, singing/making lyrics, games in nutrition, debate on dietary habit, and role play etc which are oriented to practical learning. We intended to develop this program that attempts to improve in dietary habit of schoolchildren. It is because once formed an adults dietary habit is difficult to change. Schoolchildren’s period is the best adjustable stage. Therefore, nutrition education in elementary stage can change to dietary habit and build the awareness of health.

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Development of a New Hibiscus Cultivar 'Daewangchun' with Vigorous Growth and Unique Red Eye through Interspecific Hybridization

  • Ha, Yoo-Mi;Lim, Ki-Byung;Shim, Kyung-Ku
    • Horticultural Science & Technology
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    • v.33 no.3
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    • pp.453-458
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    • 2015
  • A new Hibiscus cultivar 'Daewangchun', having vigorous growth, uniform plant habit, upright, compact branches, and a long red eye was developed through interspecific crosses between H. syriacus 'Samchully' (♀) and H. sinosyriacus 'Seobong' (♂). The Hibiscus breeding program was initiated in 2005 and Hibiscus ${\times}$ 'Daewangchun' was preliminarily selected as '05-R-204' in 2 008 due to its vigorous growth and stable flower quality w ith rich pink flowers. The s elected line was further evaluated for different growth characteristics, leaf shape, leaf size, and flowering characteristics, as well as tested for distinctness, homogeneity, and stability during 2010-2012. The new cultivar 'Daewangchun' had violet pink flowers (RHS N80C) with a long red eye spot, medium size and fan petals. The size of flower was 12.0 cm and size of the red eye was 3.0 cm. Leaves were 8.7 cm long and 4.7 cm wide. After plant characteristic evaluation for 3 years (2010-2012), 05-R-204 was registered as cultivar 'Daewangchun' (4731, No. of plant variety protection rights) in 2013. This newly developed cultivar 'Daewangchun' has tall vigorous growth and unique flowers with a long red eye and can be used as specimen plants in landscaping.

Exploring Purchase Behavior of Digital Items and Actual Usage in a Social Network Site: A Longitudinal Perspective (소셜 네트워크 서비스 사용자의 디지털 아이템 구매와 실제 사용에 관한 연구: 종단적 관점에서)

  • Kim, Byoung-Soo;Han, Se-Hee;Kang, Young-Sik
    • The Journal of Information Systems
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    • v.21 no.2
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    • pp.97-114
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    • 2012
  • Given the rapid growth of social network services (SNS) such as Facebook and Cyworld, it is important to understand SNS users' decision-making processes such as purchasing and continuance intention. Especially, as a number of SNS providers such as Cyworld and Habbo Hotel recognize the sales of digital items as the main source of their profits, it is critical to in-depth understand SNS users' purchasing behaviors. In this regard, this study explores continued usage behaviors and purchase behaviors of digital items in an SNS environment using a longitudinal research method. This paper develops a theoretical model to deeply understand the key drivers of purchase behavior of digital items through constructs prescribed by two established research streams on information systems, namely continuance usage and habitual usage. Moreover, this study examines the effects of actual and ideal self-image congruity on SNS continuance intention and habit. The research model was tested by using survey data collected from 307 users who have experience with Cyworld. The analysis results show that SNS actual usage directly influence purchase behavior of digital items. SNS users' continuance intention and habit are key drivers to enhance the level of actual usage of the SNS. Both actual and ideal self-image congruity play a key role in enhancing continuance usage and habitual usage. The implication of research and discussions provides reference for SNS providers in marketing and IT strategy.