• Human Ecology Research
• /
• v.54 no.4
• /
• pp.415-426
• /
• 2016

We researched the modern meanings of traditional dining table courtesy education and its correlation with the main values of contemporary personality education based on dining table courtesy education stated in the social norms texts of the Joseon dynasty. Among the social norms of the Joseon dynasty, we chose Sohak, Naehun, Dongmongsuji, Seonghakjibyo, Gyeongmongyogyeol, Jeungbosallimgyeongje, Sasojeol, and Koamgahoon for research. As a result of our research on these documents and books, the modern meanings of the courtesy education at the dining table can be summarized as follow. First, the courtesy education has table manners appropriate for the development level of early children. Second, it teaches right-handed dining manners that match the features of Korean food culture. Third, it has the self-discipline and the values of community life, sharing, solicitude, and communication. Fourth, parents and grandparents are involved in the education. Fifth, it has the core values of modern personality education: manners, filial piety, respect, solicitude, communication, cooperation, and responsibility. Future courtesy education at the dining table should include practical education programs that can consolidate the bond of sympathy between the home, school, and society, and can improve its practice; in addition, to expand the opportunities for education, proactive social support is demanded.

• Journal of the Korean Society for Precision Engineering
• /
• v.21 no.8
• /
• pp.97-105
• /
• 2004

The vertical roller mill is the important machine grinding and mixing various crude materials in the manufacturing process of portland cement. Table liner is one of grinding elements of vertical roller mill and is subjected to the cyclic bending stress by rollers and the centrifugal force by rotation of table. It demands $4{\times}10^7$ expense of life but has $4{\times}10^6~-8{\times}10^6$ cycle. It fractures at the edge of grinding path of outside roller The repair expense fur it amounts to 30% of total maintenance of vertical roller mill. Therefore, this study shows the fracture mechanism of table liner of vertical roller mill using HDM and fatigue analysis

• Korean journal of applied entomology
• /
• v.61 no.4
• /
• pp.549-554
• /
• 2022

Life table-related studies in insect ecology have been an interesting topic for insect researchers. Two calculation methods are commonly applied to estimate the intrinsic rate of natural increase (r_m) in the life table statistics. The first method is to estimate an approximate r_m by dividing the natural logarithm of the net reproductive rate (R₀) by mean generation time (T) (namely mean generation time-based method). Another approach is to apply the Lotka-Euler equation derived from the population growth equation of Lotka-Volterra to estimate accurate r_m using the maximum likelihood method (Lotka-Euler equation-based method). In the latter case, there is a difference in the estimated r_m value when the initial age class of the target cohort was set to "0" or "1", which confused the application. In this short review, a brief history of the calculation process of the life table was reviewed. It was again confirmed in the Lotka-Euler equation-based method that the form of $\sum\limits_{x=1}^{w}e^{-rx}l_xm_x=1$ should be applied to estimate r_m when the first age class was set to zero, while the form of $\sum\limits_{x=0}^{w}e^{-r(x+1)}l_xm_x=1$ when set to one.

• Journal of the Korean Society of Floral Art and Design
• /
• no.45
• /
• pp.57-76
• /
• 2021

Sanghwa (Table flower) style, the flower decoration of food table, was found in the paintings of Joseon Dynasty's event and civilian life. On the court event paining, there was always Sanghwa decorating the food, and it was found that the types of Sanghwa and the ingredients used were different depending on the status of the participants. The Uigwe recorded the type and number of Sanghwa, and the number of decorations was different depending on the purpose of the event or the status of the person being treated, and the Sanghwa was pre-loaded and transferred. In civilian life, Sanghwa was found to have been decorated not only on top of the food but also on top of the food table.

• Korea journal of population studies
• /
• v.13 no.1
• /
• pp.3-25
• /
• 1990

Life table of Korean population for years 1983 1985 1987 and 1989 were constructed byt the National Bureau of Statics. The ago specific death rates were calculated froom the death registral ion for numerators and the estimated population by age and sex for denominators. In the course of constructing life tables, we have maole some adjustments for deficiencies in regist rat ion olata as follows. First, the non-registered portion oof infant deaths especially for neo-natal deaths was estirnateol and added too the original data. The main reason is that deaths occorring in the neo-natal period and prior to the registrat ion of birth leave little incentive for the registration of either the birth or the death. Second. t he do~hayed p(ortioon of deaths registering after one year of occurrence was estimated and added too the original data. Third t the ptortioon haying in, occuracies in ,~oge reporting was also estimated. Fourth the moving average methood was finally employed in an effort too remove the random error. The major fin(hings are as foolloows. 1. the average life expectancy at birth in 1989 is calculateol as 70.8 years in 1989, 2. a gap netween the male and female life expectancies is widened to more than 8 years toorm 1.8 years in 1906 10. It means that the female life expectancy has increased substantially, 3. the death rates of the middle - aged men starting age 40 are found to he relatively higher than those of females and younger age groups. This peculiar pattern was also found with the comparison of those of other countries.

• Journal of Korean Society of Rural Planning
• /
• v.20 no.2
• /
• pp.45-56
• /
• 2014

There are direct and indirect approaches to measure the quality of rural life with comparison of urban. One of the direct approach is to survey living satisfaction of rural residents. Survey result is also important factor for the understanding of local needs in rural development. Rural Development Adminstration(RDA) has developed a survey table with 71 survey items for measuring the satisfaction of rural residents. In rural field forum which have conducted for finding the direction of rural development, the understanding of local needs with measuring the satisfaction of rural residents is important. But developed survey table is difficult to be applied in rural field forum not only many survey items but also overlapping in survey range. The purpose of this study is to suggest a field-applicable survey table in rural field forum based on results of RDA. Survey items were selected based on the importance score of RDA survey table, and weighting values were applied to each survey items. Finally, we suggested 31 items based on results with principle component and reliability analysis.

• The Journal of Korea Robotics Society
• /
• v.15 no.4
• /
• pp.404-412
• /
• 2020

Typically everyday human life tasks involve at least two people moving objects such as tables and beds, and the balancing of such object changes based on one person's action. However, many studies in previous work performed their tasks solely on robots without factoring human cooperation. Therefore, in this paper, we propose cooperative robot for table balancing using Q-learning that enables cooperative work between human and robot. The human's action is recognized in order to balance the table by the proposed robot whose camera takes the image of the table's state, and it performs the table-balancing action according to the recognized human action without high performance equipment. The classification of human action uses a deep learning technology, specifically AlexNet, and has an accuracy of 96.9% over 10-fold cross-validation. The experiment of Q-learning was carried out over 2,000 episodes with 200 trials. The overall results of the proposed Q-learning show that the Q function stably converged at this number of episodes. This stable convergence determined Q-learning policies for the robot actions. Video of the robotic cooperation with human over the table balancing task using the proposed Q-Learning can be found at http://ibot.knu.ac.kr/videocooperation.html.

• Journal of the Korean Data and Information Science Society
• /
• v.8 no.2
• /
• pp.153-161
• /
• 1997

A Korean exporience life table(male) is constructed by using a mixture of weighted moving average(WMA) model and Gompertz' parametric survival model based on 25,000,000 insured of major 6 life insurance companies from 1988 to 1992. The graduated values are taken as those which minimize the composite measure of fittness and smoothness. Moreover, we propose closed form estimators for three parameters of Gompertz' model.

• Journal of the Korea Furniture Society
• /
• v.24 no.1
• /
• pp.15-23
• /
• 2013

The form of the furniture developed variously according to the flow of the time. The Soban used in the modern living space is used as a decoration. but the furniture has to be used according to the form of the modern life and residential space. The furniture is the medium interacting with the surrounding environment in the residential space. I reconstruct the splendid fanciness of the pattern of the Haejuban and nature of structure and apply to the table design. The table gave the change of the form in order to be suitable for the residential space. and it raised the efficiency of the convenient of the custody and space utilization.

• Proceedings of the Zoological Society Korea Conference
• /
• 2001.10a
• /
• pp.155.1-155
• /
• 2001