• The Journal of the Korea Contents Association
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• v.8 no.11
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• pp.323-337
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• 2008

This study is focused on the relationship between children's attitude and their behavior and intention of behavior to increase their positive behavior towards elders so that can be solutions to reduce social isolation of elders. This study explains relationships between ways children recognize seniors, their attitudes and their intention of behavior; how they affect one another. Figuring it out would help to learn ways how to resolve psychological problems which elders suffer. Regression analysis were also done to figure out whether chosen factors are appropriate and to verify the hypotheses or assumptions. To learn differences between two groups t-test was applied. This proved that children's perceived value on elders who they experienced directly or indirectly has positive effect on their emotional attitude, and this emotional attitude affects their cognitive behavior positively which affects their behaving attitude in a positive way. Lastly, behaving attitude has positive effect on children's intention of behavior.

• The Journal of the Convergence on Culture Technology
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• v.8 no.3
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• pp.25-31
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• 2022

This study aims to investigate the degree of influence of LMS on online classes conducted after COVID-19 at C University in Gyeongsangnam-do, and to examine the relationship between overall class satisfaction and LMS satisfaction variables. C University started the project to construct 'Next-generation Smart LMS' and operated it from the first semester of 2021. As a result of conducting a survey about overall class satisfaction and LMS satisfaction consisting of five variables with 140 learners who have experienced online classes at C University. The learners showed high satisfaction not only in overall classes but also LMS. As a result of regression analysis of LMS satisfaction and overall class satisfaction, it was found that the functional convenience of LMS and interaction with instructors had a significant effect on overall class satisfaction. This study has limitations in that it was conducted only at one college and a limited number of variables were measured.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.48 no.3
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• pp.142-146
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• 2003

To obtain information on the inheritance of grain weight and grain size of japonica cultivar, Sobibyeo which has high yielding potential and large grain in rice, the genetic variation, heritability and phenotypic correlation of 1,000 grain weight, grain length, width and thickness were investigated in two crosses, Iksan 429/Sobibyeo and Iksan 430/Sobibyeo. The gram characteristics of $\textrm{F}_1$ hybrids exceeded mid-parental values, while grain length: width ratio was intermediate between the parents. In $\textrm{F}_2$ populations, the average grain length, width and thickness were intermediate as mid-parental values, but grain weight exceeded the mid-parental values. In $\textrm{F}_2$ populations of Iksan 429/Sobibyeo and Iksan 430/Sobibyeo, mean 1,000 grain weights were 24.86g and 25.04 g on the average, and ranged 18.4g-32.2g and 19.5g-33.4g, respectively. The segregation mode for grain weight was regarded as a nearly normal distribution in two crosses of $\textrm{F}_2$ populations. Estimates of broad sense heritabilities for grain weight in Iksan 429/Sobibyeo and Iksan 430/Sobibyeo were high as 89.00% and 89.06%, and grain length showed the highest heritability among grain characteristics as 97.45% and 97.35%, respectively. Grain weight was highly correlated with grain length, width and thickness, and grain length was highly correlated with grain width and thickness. These grain characteristics were apparently controlled by polygenes. Accordingly, these traits will be readily improved through selection in the early segregating generations.

• Proceedings of the Korea Water Resources Association Conference
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• 2007.05a
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• pp.296-300
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• 2007

우리나라에 내리는 대부분의 강수량은 6월${\sim}$8월의 장마기간 혹은 태풍의 영향으로 인해 발생한다. 특히 국지적으로 발생하는 집중호우로 인해 많은 인명, 재산 피해 등이 발생한다. 우리나라에서 집중호우로 인한 피해는 거의 매년 발생하고 있으며, 집중호우의 발생 지역은 특정 지역에 국한되어 있지 않다. 따라서 집중호우 발생으로 인한 피해 방지를 위해 사전에 충분한 준비를 해야 한다. 2006년 7월 8일부터 10일까지 3일 동안 진주지역 306.5mm, 합천지역 259.5mm, 산청지역 366.0mm의 집중호우가 발생하였으며, 이 기간 동안 이들 지역 외에도 전국적으로 태풍 에위니아(EWINIAR)의 영향으로 많은 호우가 발생하였다. 본 연구에서는 2006년 7월 진주지역 집중호우 특성 연구를 위해 진주지역 시강우 자료를 이용하여 자료를 분석하였다. 시강우 자료를 이용하여 진주지역 재현기간별 확률강우량을 산정하였고 2006년 7월 8일부터 10일까지의 강우분포형태를 설계강우분포형과 비교하였다. 또한 2006년 7월 발생했던 진주지역 집중호우의 무차원 누가곡선을 작성하여 분석을 실시하였다. 분석 결과 일최대 강우량의 경우 그 크기가 50년 혹은 80년 이내였으며, 강우분포형의 경우 하천정비기본계획의 경우 Mononobe 중앙집중형이였지만, 지난 호우의 경우 후방위의 강우가 연속적으로 발생한 형태였다. 또한 대부분의 강우가 6시간 이내에 내려 첨두홍수 발생에 많은 영향을 미쳤을 것으로 판단된다. 앞으로 이상기후와 같은 자연 현상에 대비하기 위해서는 단시간 호우에 대한 정확한 분석과 강우분포에 대한 연구가 더욱 필요할 것으로 생각된다.적자색의 미려한 결정이 석출되므로 이 결정을 여과하여 ethanol로 세척하고 진공 desiccator중에서 건조시켰다. 수득량 1.2~1.3g.)와의 조환가는 11.9565의 상인연소현상을 보였다. 삭과색(Y) 경색(R) 유전자간에는 어느것이나 연소현상이 보이지 않았다. 4. 단일반응성의 변이는 연소적이며 우성은 거의 인정되지 않았고 인자간의 상호작용도 인정되지 않았으며 상가적 유전을 보였다. 광의와 협의의 유전력은 각각 89.50%로서 실용적으로 대단히 높은 것으로 생각되었으며 단일반응성에 관여하는 유전자수는 2대의 인자로 추정하였고 다시 양친의 유전자형을 aabb AABB라고 측정하여 각인자의 작용가는 11.136일로 산출되었고 분해법에 의한 유전분석결과 유전자형의 관찰빈도분포와 이론빈도분포는 서로 잘 적합되었다. 단일반응성에 있어서 유전력이 대단히 높았으므로 비교적 초기세대에서 본 형질의 선발이 가능할 것 같았다. 5. 단일반응성과 엽형 및 엽병색 유전자와의 사이에 $F_2$, $BC_1$ 및 $BC_2$에서 각각 유의적인 상관관계를 볼 수 있었으므로 이들 형질간에 연소가 있는 것으로 인정되었다. 더욱 엽형과 엽병색과의 연소가 있는 것으로 인정되는 이상단일반응성 유전자와의 사이에 연소군이 인정된다. 6. 섬유중 유전자와 엽병색 및 엽형유전자와의 사이에 $F_2$$BC_1$ 및 $BC_2$에서 각각 유의적 상관관계를 볼 수 있었으므로 이를 형질간에 연소가 있는 것으로 인정되었다. 더욱 엽형과 엽병색과의 연소가 있는 것으로 인정되는 이상 섬유중 유전

• Journal of the Korea Institute of Information and Communication Engineering
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• v.5 no.5
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• pp.941-950
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• 2001

In this paper, we present the integrated network architecture for supporting mobile IP in third generation mobile communication networks, and propose the end-to-end QoS control mechanisms of DiffServ and QoS control functions of each network element in the proposed network. First, the QoS supporting schemes of IMT-2000 are described. Second, the necessities of integrating the networks are discussed and the integrated architecture are proposed. Third, the mapping between wireless channels and DiffServ classes are presented. Finally, the end-to-end QoS control mechanisms are proposed. We also analyze the link level protocols with QoS provisioning for mobile multimedia assuming that the system support voice and data traffic simultaneously. In case of data traffic, the delay and throughput of SREJ ARQ and Type-1 Hybrid ARQ scheme are compared, and In case of voice traffic, the packet loss rate of BCH coding is analyzed according to the varying data traffic loads. The results indicate that the adaptive link level protocols are efficient to meet the QoS requirements while the complexities are increased.

• Journal of Internet Computing and Services
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• v.7 no.1
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• pp.65-74
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• 2006

Human tracking is a requirement for the advanced human-computer interface (HCI), This paper proposes a method which uses a component-based human model, detects body parts, estimates human postures, and animates an avatar, Each body part consists of color, connection, and location information and it matches to a corresponding component of the human model. For human tracking, the 2D information of human posture is used for body tracking by computing similarities between frames, The depth information is decided by a relative location between components and is transferred to a moving direction to build a 2-1/2D human model. While each body part is modelled by posture and directions, the corresponding component of a 3D avatar is rotated in 3D using the information transferred from the human model. We achieved 90% tracking rate of a test video containing a variety of postures and the rate increased as the proposed system processed more frames.

• Korea journal of population studies
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• v.28 no.2
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• pp.1-32
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• 2005

The optimum population of a society or country can be defined as 'the population growth path that maximizes the welfare level of the society over the whole generations of both the present and the future, under the paths allowed by its endowments of production factors such as technology, capital and labor'. Thus, the optimum size or growth rate of population depends on: (i) the social welfare function, (ii) the production function, and (iii)demographic economic interrelationship which defines how the national income is disposed into consumption(birth and education of children included) and savings on the one hand and how the demographic and economic change induced thereby, in turn, affect production capacities on the other. The optimum population growth path can, then, be derived in the process of dynamic optimization of (i) under the constraints of (ii) and (iii), which will give us the optimum population growth rate defined as a function of parameters thereof. This paper estimates the optimum population growth rate of Korea by: specifying (i), (ii), and (iii) based on the recent development of economic theories, solving the dynamic optimization problem and inserting empirical estimates in Korea as the parametric values. The result shows that the optimum path of population growth in Korea is around TFR=1.81, which is affected most sensitively, in terms of the size of the partial elasticity around the optimum path, by the cost of children, share of capital income, consumption rate, time preference, population elasticity of utility function, etc. According to a survey implemented as a follow up study, there are quite a significant variations in the perceived cost of children, time preference rate, population elasticity of utility across different socio-economic classes in Korea, which implied that, compared to their counterparts, older generation and more highly educated classes prefer higher growth path for the population of Korea.

• Korean Journal of Plant Taxonomy
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• v.46 no.3
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• pp.314-325
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• 2016

Multiple changes of the photosynthesis pathway are independent evolutionary events occurring in the phylogeny of flowering plants, and such changes have occurred more than five times in Cyperaceae. In the tribe Cypereae, the C4 photosynthetic pathway appeared only once and is regarded as a synapomorphy of the C4 plants within this tribe. The morphological delimitation of genera within Cypereae does not correspond to their molecular phylogenetic relationships. In this study, the molecular phylogeny was compared with the photosynthetic pathways of Korean Cypereae (18 species of Cyperus, 1 species of Kyllinga, and 1 species of Lipocarpha). The photosynthetic pathways were determined by observing the leaf anatomy. The phylogenetic analysis was performed using three DNA regions (nrITS, rbcL, and trnL-F). According to the position of the photosynthetic tissue, 4 species (C. difformis, C. flaccidus, C. haspan, and C. tenuispica) and 16 species (14 Cyperus species, K. brevifolia var. leiolepis, and L. microcephala) were confirmed as C3 and C4 plants, respectively. Tribe Cypereae was divided into the CYPERUS and FICINIA clades, and all species of Korean Cypereae plants belonged to the CYPERUS clade in the phylogenetic analysis. Within the CYPERUS clade, C4 plants were monophyletic but their phylogenetic relationships were unclear. The genera Kyllinga and Lipocarpha were not supported as an independent genus in either case because they were nested by the Cyperus species in the molecular phylogenetic trees in the present and in previous studies. To determine the classification within the CYPERUS clade, a detailed morphological study and a molecular phylogenetic analysis at a high resolution will be necessary.

• Korean Journal of Childcare and Education
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• v.3 no.2
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• pp.22-47
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• 2007

The purpose of this study was to examine whether parental beliefs, value of children, and filial obligation were related. The subjects were 748 students(male 323, female 425) who were currently enrolled at university located in Seoul. The instruments used for this study were Filial Obligation Scale(Cho, 2002), Parenting Beliefs Questionnaire, and Value of Children by Arnold et al.(1975, 2001). Data were analyzed using descriptive statistics, t-test, ANOVA, and Pearson's correlations by SPSS PC Program. The results showed that university students generally demonstrated a higher level of individual-oriented beliefs than relation-oriented beliefs on parental beliefs. With regard to parental beliefs, family relation-oriented beliefs was relatively low in comparison with independence/autonomy-oriented beliefs, happiness-oriented beliefs, and cognition/knowledge-oriented beliefs. In addition, emotional value of children was relatively high in comparison with instrumental value of children. Also, male university students possessed a higher level of filial obligation. the level of cohabitation experience with their parents played a significant role in affecting the level of filial obligation. Unsurprisingly, a higher relation-oriented parental beliefs and emotional value of children demonstrated a higher level of filial obligation. There were also positive relationships between emotional value, instrumental value, and filial obligation. Hence, this study suggests that a practical, functional training services and resources for future parents must be ensued.

• Journal of Korean Society of Archives and Records Management
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• v.20 no.1
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• pp.115-137
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• 2020

This study aims to examine the limitations of status that describe archives based on the Archival rules, and to propose a new method using the Records in Context - Conceptual model (RiC-CM) as a solution. Given this, the study conducted literature reviews and case studies. The solutions based on RiC-CM and its effects on the limitations of the existing environment are as follows. First, RiC-CM can describe multiple provenances about archives. This can be solved by defining individual records and provenances as "entity" and expressing their associations as relationships. The interrelation of entities alone can more accurately represent the information of provenances associated with a particular archive, making it easier to identify the overall context that makes records. Second, RiC-CM can link related files. Those that belong to a specific records group (fonds) can be resolved by assigning them to individual entities and making interrelation according to the context that makes records. This method makes it possible to serve information about the context that makes records. From the user's point of view, more options are available for searching records. Third, RiC-CM can link all relevant producer-made records related to a specific production organization. If organizations are related to each other, they can be defined as "entity," and their relationship can be expressed as "associated with." It helps to comprehensively examine the context of provenances. The findings of this study are expected to be used as a basis for future research on RiC-CM, in response to the paradigm shift for electronic records management systems.