As the fastest growing office transaction volume in Korea, there's been a need for development of indicators to accurately diagnose the office capital market. The purpose of this paper is experimentally calculate to the office price index for effective benchmark indices in Seoul. The quantitative methodology used a Case-Shiller Repeat Sales Model (1991), based on actual multiple office transaction dataset with over minimum 1,653 ㎡ from Q3 1999 to 4Q 2019 in the case of 1,536 buildings within Seoul Metropolitan. In addition, the collected historical data and spatial statistical analysis tools were treated with the SAS 9.4 and ArcGIS 10.7 programs. The main empirical results of research are briefly summarized as follows; First, Seoul office price index was estimated to be 344.3 point (2001.1Q=100.0P) at the end of 2019, and has more than tripled over the past two decades. it means that the sales price of office per 3.3 ㎡ has consistently risen more than 12% every year since 2000, which is far above the indices for apartment housing index, announced by the MOLIT (2009). Second, between quarterly and annual office price index for the two-step estimation of the MIT Real Estate Research Center (MIT/CRE), T, L, AL variables have statistically significant coefficient (Beta) all of the mode l (p<0.01). Third, it was possible to produce a more stable office price index against the basic index by using the Moore-Penrose's pseoudo inverse technique at low transaction frequency. Fourth, as an lagging indicators, the office price index is closely related to key macroeconomic indicators, such as GDP(+), KOSPI(+), interest rates (5-year KTB, -). This facts indicate that long-term office investment tends to outperform other financial assets owing to high return and low risk pattern. In conclusion, these findings are practically meaningful to presenting an new office price index that increases accuracy and then attempting to preliminary applications for the case of Seoul. Moreover, it can provide sincerely useful benchmark about investing an office and predicting changes of the sales price among market participants (e.g. policy maker, investor, landlord, tenant, user) in the future.
The immune activities of Ganoderma lucidum Mycelium added garlic extracts (GAM), Ganoderma lucidum Mycelium (GM), garlic extracts (GS) and standard $({\beta}-glucan)$ were compared. GAM enhanced the growth of human immune T cell up to $1.25{\sim}1.46$ times, compared to control group. GAM showed relatively lower cytotoxicity in using normal human lung cell, while GAM showed the most potent inhibitory effect on the human lung carcinoma, compared to GM and GS. The selectivity of GAM was also higher than that of GM and GS. GAM increased the secretion of cytokines, IL-6 and TNF- from human B cell as well as the growth of human immune cells. It can imply that GAM has higher immune activity than GM or GS.
Kang, Dong-Hyun;Pak, Soo-Kyung;Park, George O.;Hong, Sang-Jeen
Proceedings of the Korean Vacuum Society Conference
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2012.02a
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pp.433-433
/
2012
As the requirement in patterning geometry continuously shrinks down, the termination of etch process at the exact time became crucial for the success in nano patterning technology. By virtue of real-time optical emission spectroscopy (OES), etch end point detection (EPD) technique continuously develops; however, it also faced with difficulty in low open ratio etching, typically in self aligned contact (SAC) and one cylinder contact (OCS), because of very small amount of optical emission from by-product gas species in the bulk plasma glow discharge. In developing etching process, one may observe that coupon test is being performed. It consumes costs and time for preparing the patterned sample wafers every test in priority, so the coupon wafer test instead of the whole patterned wafer is beneficial for testing and developing etch process condition. We also can observe that etch open area is varied with the number of coupons on a dummy wafer. However, this can be a misleading in OES study. If the coupon wafer test are monitored using OES, we can conjecture the endpoint by experienced method, but considering by data, the materials for residual area by being etched open area are needed to consider. In this research, we compare and analysis the OES data for coupon wafer test results for monitoring about the conditions that the areas except the patterns on the coupon wafers for real-time process monitoring. In this research, we compared two cases, first one is etching the coupon wafers attached on the carrier wafer that is covered by the photoresist, and other case is etching the coupon wafers on the chuck. For comparing the emission intensity, we chose the four chemical species (SiF2, N2, CO, CN), and for comparing the etched profile, measured by scanning electron microscope (SEM). In addition, we adopted the Dynamic Time Warping (DTW) algorithm for analyzing the chose OES data patterns, and analysis the covariance and coefficient for statistical method. After the result, coupon wafers are over-etched for without carrier wafer groups, while with carrier wafer groups are under-etched. And the CN emission intensity has significant difference compare with OES raw data. Based on these results, it necessary to reasonable analysis of the OES data to adopt the pre-data processing and algorithms, and the result will influence the reliability for relation of coupon wafer test and whole wafer test.
Magazine of the Korean Society of Agricultural Engineers
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v.24
no.1
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pp.31-43
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1982
Engineering phase of dairy housing systems has close connection with the milk produc- tivity of dairy cattle, the quality of milk, extension of dairy production systems, labor- saving in management of dairy cattle and the like. Moreover, the rate of investment of dairy housing facilities is of relatively high level, However, there has been almost no research effort for the improvement of engineering aspects of dairy housing systems in Korea. The purpose of this study is to find out general engineering problems and to recomm- end the improvement in dairy housing systems in Korea. Field survey by means of questionaire, direct measurements, taking pictures and sketching was conducted to get necessary information for the study. Kyung-ki Do region was firstly chosen for sampling area since it has included more than half of the number of dairy farms of the whole country. The results obtained are summarized as follows: 1. In overall dairy farm layout, the dwellings of workers were ignored in the light of sanitary environment 2. The layout of stalls in a dairy barn belongs mostly to the type of double-row face-out, which is compatible with the emphasis of manure disposal activities. 3. While the width and length of stalls were sufficiently close to the standard dimension, the width of mangers was much less than the standard dimension. 4. The width and depth of manure gutters and the width of working alleys were much. less than the standard dimension. 5. The mooring equipment was mostly in the classes of chain or rope. The watering equipment was not facilitated independantly except the one cese of using watercup. 6. The bucket milkers with one or two bucket milkers with the capacity of two cattles. each were used as milking equipment in most dairy farms. 7. There were only few milk rooms independently spaced from other space, in which the arrangement of milking equipment was much less than the standard condition. 8. The lounging ground area was averaged to be sufficient for the activity of dairy herd. 9. Silos for silage used during winter consisted of mostly bunker silos, trench silos and underground vertical silos. Ordinary vertical silos were considered for the farmers to be inconvenient for the labor saving. 10. From the view point of heat conservation and moisture removal within the dairy barns, windows were not flexible for the easy ventilation and ceiling part was not adequate for temperatur maintenance. 11. Waste treatment and disposal systems were not provided with most dairy farms, therefore the livestock waste pollution problems would be serious in the near future.
The determination method of free acid in spent U-Al nuclear fuel solutions by Gran plot titration was described. Effect of U(VI) and Al(III) on the alkalimetric titration of nitric acid was investigated in oxalate complexing media as well as in noncomplexing media. Positive biases were observed in both titration media when the end-point was estimated by the Gran plot method. It was found that the cause of the bias was U(VI) in the oxalate complexing media, but Al(III) in the noncomplexing media. The relative error was less than 1% in the titration of 0.1 M $HNO_3$ at a U(VI) : Al(III) : $H^+$ mole ratio of up to 2:12:1 as long as the pH of the oxalate titration media was sustained to be below 5.0 at the beginning of titration. The method was successfully applied to the determination of nitric acid in a solution of HANARO reactor fuel with U:Al mole ratio of 1:6.
Lee, Jisun;Kwon, Jay Hyoun;Baek, Kyeong Min;Moon, Jiyeong
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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v.30
no.5
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pp.493-500
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2012
The previous geoid model developed in early 2000s shows 14cm level of precision due to the problems on distribution, and quality of the land gravity and GPS/Leveling data. From 2007, the new land and airborne gravity data as well as GPS/Leveling data having high quality and regular distribution has been obtained. In 2011, a new gravimetric geoid model has been constructed with precision of 5.29cm which was improved about 27% comparing to the previous model. However, much more land gravity data has been collected at the control point, bench marks and triangulation points since 2010. Also, GPS/Leveling data having 10km spacing over whole country has been obtained through the project which is for the construction of new control points. In this study, new gravimetric geoid has been calculated based on the all available gravity data up to present. The geoid height shows the range from 18.05m to 32.70m over whole country and its precision is 5.76cm. The degree of fit and precision of hybrid geoid model are 3.60cm and 4.06cm, respectively. At the end, 3.35cm of the relative precision in 15km baseline has been calculated to confirm its practical usage. Especially, it has been founded that regional bias occurred at the Kangwon and coastal area due to problems on the leveling data. Also, some inland points show inconsistent large difference which needs to be verified by analyzing the unified control points results.
Health policy is a historical product in the process of development, including the political and economic factors of the state as well as the social and cultural elements of the country. Bioethics began to debate the ethical questions that arise in the overall process of life's birth and death, and gradually evolved by presenting ethical directions for various social phenomena. Especially, according to the moral awakening of 'scientific medicine' which caused in some human problems in the rapidized scientific society from the late 19th century to the early 20th century, as a result of distress including the concept of various social relations, it is possible to say that it has reached the bioethics. Although health policy and bioethics are different in terms of starting and concept, they can be found in common with social, cultural, and political diversity in the times. In 2004, 'Bioethics Law' was enacted through the issue of research ethics in the life sciences. Therefore, in order to examine ethical aspects of current health policy direction and major issues, it can be divided into before and after enactment of 'Bioethics Law' in 2004. The authors would like to examine how the evolution of the ethical viewpoint on the health policy has changed in line with the enactment of the 'Bioethics Law' and how it is trying to solve it from an ethical point of view. Through the various events that took place in the 1990s and the 2000s, various discussions on bioethics were conducted in Korea. Prior to the enactment of the 'Bioethics Law,' ethical judgments of professions, distribution of healthcare resources, if the discussion focused on the ethical judgment of abortion, and the various events that appeared in the early 2000s became the beginning to inform that the ethical debate about the life, death, and dignity of human beings began in earnest in Korea with the enactment of the 'Bioethics Law.' Since then, 'Hospice and Palliative care Law' which was enacted in 2017, is based on the fact that the health policy of our country focuses on the treatment of the past diseases, health promotion, and delivery of health care services. It was an opportunity to let them know that even the quality problems were included. Therefore, considering the various circumstances, the ethical issue facing Korea's health care system in the future is the change of the demographic structure due to aging and what is to be considered as the beginning and the process of life in the overall process of life. It is the worry about how to die and when it sees as death. This has far exceeded the paradigm of traditional health care policies such as disease prevention and management and health promotion, and calls for innovative policy response at the national level that reflects the new paradigm, which in many cases creates a predictable ethical environment. And health policy should be shifted in the direction of future ethical review considering sustainability in the development process of future health care rather than coercive management.
This paper examines the epistemology of the body and the direction of Christian education based on it. Looking at Merleau-Ponty, Damagio, and Nelson's epistemology of the body, it found that they had a common point, even though they studied in different areas like philosophy, brain science, and body theology; the body is a subject that perceives the world in a sensuous and direct way, and is a channel that mediates humans and the world, and plays a decisive role in human self-formation. In particular, theology of body revealed, that the body is a pathway for our understanding of God just as a pathway for our understanding the world. In addition, theology of body revealed that the body is regarded as the place of 'embodiment of God', and in the end, the world in which our incarnated body participates should also become the place of 'God's incarnation'. It also examined Christian education based on the epistemology of the body, focusing on 'education starting from the senses', 'education as a participation', and 'incarnational education'. From these three concepts, it found that epistemology of body suggests an alternative view of traditional knowledge-based education or schooling education. It suggests an open paradigm centered on sense and experience, personal participation, non-verbal experience, and field of education, beyond a fixed and closed paradigm of doctrine-centered, objective knowledge mediation, language-centered, and content-centered. Furthermore, this paper found that the body is like a well that can pump up metaphors that provide a basic metaphor for re-conceptualizing Christian education.
Noh, Younghee;Choi, Man-Ho;Kim, Yoon-Jeong;Chang, Rosa
Journal of the Korean Society for Library and Information Science
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v.54
no.3
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pp.71-95
/
2020
In Gyeonggi-do(province), where the largest number of small libraries are located in Korea, 42% of small libraries are located in apartment complexes. However, as libraries established under legal obligations are managed and operated on voluntary will, there have been numerous ongoing cases of temporary closure or permanent shut down. To revitalize small libraries in apartment complexes, it is reasonable to seek ways to revitalize them through the role of the central point of the village community in the complex. To that end, this study surveyed the current status of small libraries in Gyeonggi-do, a survey of small library operators and related persons in apartment housing complexes and similar residential communities in Gyeonggi-do and 31 cities and counties. Based on this, this study was intended to derive practical measures to revitalize the operation and preservation of small libraries in such residential communities. Four goals were set to improve community awareness of small libraries, cultivate self-operating abilities, improve laws and systems, and strengthen support for local governments. Research needs to be carried out not only for small libraries in apartment complexes in Gyeonggi-do but also for the continued development of other small private libraries.
Changes of lactic acid bacteria and fermentation patterns were investigated during fermentation of Green Onion Kimchi and Chinese Cabbage Kimchi at 10 and $20^{\circ}C$. Fermentation of Green Onion Kimchi proceeded more slowly than Chinese Cabbage Kimchi in point of changes of pH, total acidity and total viable cell number. Maximum number of total viable cell, Leuconostoc, and Lactobacillus in Green Onion Kimchi were smaller than in Chinese Cabbage Kimchi. And these differences were larger in fermentation at $10^{\circ}C$. Total sugar content of Green Onion Kimchi was higher than Chinese Cabbage Kimchi not only at the beginning of fermentation but also at the end of fermentation. Therefore, the reason for the slow fermentation of Green Onion Kimchi was not low sugar content. Major lactic acid bacteria of properly fermented Green Onion Kimchi were identified as Lactobacillus plantarum and Leuconostoc mesenteroides which had been reported to be major lactic acid bacteria isolated from Chinese Cabbage Kimchi.
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