• Proceedings of the Korean Society of Machine Tool Engineers Conference
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• 1998.03a
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• pp.148-153
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• 1998

In order to control thermal deformation of machine origin of machine tools due to internal and external heat sources, the real-time compensation system has been developed. First, GMDH models were constructed to estimate thermal deformation of machine origin for a vertical machining center through the measurement of deformation data and temperature data of specific points on the machine tool. Thermocouples and gap sensors are used respectively for measurement. These models are nonlinear equations with high-order polynomials and implemented in a multilayered perceptron type network structure. Secondly, work origin shift method were developed by implementing digital I/O interface board between CNC controller and IBM-PC. The work origin shift method is to shift the work origin by the compensation amounts which is calculated by pre-established GMDH model. From the experimental result, thermal deformation of machine origin was reduced to below $\pm$5${\mu}{\textrm}{m}$.

• Journal of Chest Surgery
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• v.21 no.2
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• pp.276-282
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• 1988

Surgery is now the usual mode of therapy in patients with severe valvular heart disease. Until recently, clinicians and pathologists attributed nearly all acquired valvular heart diseases to a rheumatic origin, except some obviously resulting from acute infection and syphilis. Although many clinicians and pathologists describe that the origin of aortic valvular disease is a nonrheumatic origin, we recognize the major origin of aortic valvular disease in Korea as a rheumatic origin. We excised 47 cardiac valves from valvular heart diseased patients and performed anatomical and pathological analysis for its origin and underlying pathology. The purpose of this article is to provide an update for the clinicians of evolving issues related to the pathology of valvular heart disease. But myxomatous origin and infective endocarditis valvulitis will not be covered in detail.

• Journal of Families and Better Life
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• v.26 no.2
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• pp.129-141
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• 2008

The purpose of this study was to investigate the effect of family-of-origin experiences on marital satisfaction and psychological adjustment among married men and women. For this purpose, the data were collected from 123 married men and 188 married women using self-administered questionnaire method by AMOS 7.0 program. The results of the study were as follows : First, men and women's family-of-origin experience(family of origin health, parents' marital conflict, triangulation) had a direct effect on marital satisfaction. Secondly, men's family-of-origin experience had a direct effect on psychological adjustment(self-esteem, depression). But women's family-of-origin experience had a indirect effect on psychological adjustment. Finally, men and women's marital satisfaction had a direct effect on psychological adjustment.

• Korean Journal of Food Science and Technology
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• v.44 no.5
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• pp.503-525
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• 2012

Consumers are increasingly concerned about the origin of foods, so the geographical origin of foods has been a major topic of debate and extensive research. Various instrumental methods (e.g. high performance liquid chromatography (HPLC), gas chromatography (GC), capillary electrophoresis (CE), electronic nose, near-infrared spectroscopy (NIRS), nuclear magnetic resonance spectroscopy (NMR), DNA analysis, multi-isotope analysis) in conjunction with statistical analysis, were developed and applied in attempt to provide reliable answers to their geographical origin. This study reviews current developments in the application of various methods for a clear geographical origin of foods. The limitation of discrimination analysis for geographical origin was also discussed.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.58
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• pp.267-286
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• 2013

Origin verification is regarded most essential for FTA performance administration. This administration is divided into direct and indirect system where Korea has adapted indirect system to Korea-EU FTA while direct system to Korea-USA FTA. A comparative analysis was conducted on the system of origin verification and provisions contained in preferential tariff law of each countries. The study finds that Korean origin verification system is a bit lack of procedural provision resulting in less protection of domestic trader's rights. Another point is that Korean Customs Authority is weak, in respect of organization and man power, to protect illegal bilateral tariff application by counter part FTA countries. And therefore this study suggests the policy makers to arrange detailed FTA origin verification procedures with earliest meeting with counter part FTA countries, and further stress that make up of organization and man power for origin verification in a timely manner.

• Journal of The Korean Astronomical Society
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• v.52 no.1
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• pp.11-21
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• 2019

Intensive Monitoring Survey of Nearby Galaxies (IMSNG) is a high cadence observation program monitoring nearby galaxies with high probabilities of hosting supernovae (SNe). IMSNG aims to constrain the SN explosion mechanism by inferring sizes of SN progenitor systems through the detection of the shock-heated emission that lasts less than a few days after the SN explosion. To catch the signal, IMSNG utilizes a network of 0.5-m to 1-m class telescopes around the world and monitors the images of 60 nearby galaxies at distances D < 50 Mpc to a cadence as short as a few hours. The target galaxies are bright in near-ultraviolet (NUV) with $M_{NUV}$ < -18.4 AB mag and have high probabilities of hosting SNe ($0.06SN\;yr^{-1}$ per galaxy). With this strategy, we expect to detect the early light curves of 3.4 SNe per year to a depth of R ~ 19.5 mag, enabling us to detect the shock-heated emission from a progenitor star with a radius as small as $0.1R_{\odot}$. The accumulated data will be also useful for studying faint features around the target galaxies and other science projects. So far, 18 SNe have occurred in our target fields (16 in IMSNG galaxies) over 5 years, confirming our SN rate estimate of $0.06SN\;yr^{-1}$ per galaxy.

• Journal of Technology Innovation
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• v.5 no.1
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• pp.113-149
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• 1997

This paper, searching for the origin of the science and technology policy, is one of the research series on the original form of current S&T policy such as origin, evolution and changing patterns. Without understanding the origin, it is very difficult to understand the evolution and the current change of the policy. To answer this question, 2 kinds of conditions are set: 4 concepts for the origin of a policy and also 4 conditions for the S&T policy itself. As the origin of a policy, 4 concepts are set such as independence, continuance, diffusion and modern state as a policy body. Also as conditions for S&T policy, there may be 4 conditions such as policy targets, policy functions, administration body and the usage of the name of the policy. S&T can be distinguished as science, technology and S&T along it's development path. There, hence, are 2 origins of science and technology policy. French policy for modern science at the late 18th century and the establishment of the Agency of Science and Technology Policy of Japan in 1956 can be pointed out as the origin of the policy. The former can be called as the origin for natural science, and the latter as the origin for S&T. This study implies that new paradigm of S&T policy is a reflection for both the needs of new S&T and social needs. When there were big problems in a society and when there appeared new S&T, they exploited new S&T vigorously. This has been remained as a rememberable monuments in the history of the S&T policy.

• Human Ecology Research
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• v.52 no.4
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• pp.337-345
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• 2014

The purpose of this study was to examine the mediating effect of the adult attachment in the relationship between the family of origin functioning and fear of intimacy. Data were collected through a questionnaire from 557 university students in the Jeollabuk-do of South Korea. The collected data were analyzed by basic descriptive statistics, Pearson's correlations and multiple regression analysis. Baron and Kenny's method was used and examined, and the Sobel test was performed to determine the mediating model's significance. It was adapted to SPSS ver. 18.0 for Windows. The major findings were as follows: first, the functioning of family-of-origin was negatively related to the fear of intimacy. In addition, younger students and students with less past dating experience were more likely to fear of intimacy. Second, fear of intimacy was influenced by the family-of-origin through the intermediate effect of attachment avoidance and attachment anxiety. Attachment avoidance and attachment anxiety had partial mediating effects on the relationship between family-of-origin functioning and the fear of intimacy. That is, family-of-origin functioning was shown to have not only a direct effect, but also an indirect effect through attachment avoidance and attachment anxiety, on the fear of intimacy. The results of this study suggest that the importance of family-of-origin functioning in order to improve Korean college students' intimacy abilities.

• Journal of Ocean Engineering and Technology
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• v.5 no.1
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• pp.71-80
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• 1991

This paper reveals the effect of the effective case depth(ECD) on the fatigue behavior of a high-frequency induction hardened SM45C in rotated bending fatigue test. In addition, the effects of fracture modes(surface origin type, inner origin type) on it are discussed. The fatigue limit of the induction hardened steel is remarkably increased compared with that of base metal. In addition, the fatigue limit is linearly increased as the effective casedepth grows deep in the region of this experiment (ECD/R;0.23-0.49). The S-N curve and fracture mode in the induction case hardened steel are classified into two kinds, as a result : N$_{f}$<10$^{5}$ ;surface origin type fracture(at high stress), N$_{f}$>10$^{5}$ ; in ner origin type fracture(at low stress). In case of inner origin type fracture; as the effective case depth(ECD) gets deep, the fatigue limit is increased by the reason that the fracture origin moves toward center; in reverse, is decreased by reason that the compressive residual stress gets low. As a result, the increasing effect of the former is much bigger than the decreasing effect of the latter, and the fatigue limit is increased as the ECD gets deep.eep.

• Korean Journal of Organic Agriculture
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• v.28 no.2
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• pp.139-154
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• 2020

The purpose of this study is to improve some problems of the country-of-origin labeling based on the perception of consumers. For this, we surveyed 636 people. The questions of the survey are largely divided into three categories; 1) criteria and subject for imposition of fine, 2) the possibility of getting consumers confused with the products using domestic regional names as domestic products, 3) criteria for the country-of-origin transplantation of agricultural products and forestry products. According to the results, more than 30.0% of consumers preferred that it is adequate for imposing fine as much as its total sales, regardless of the type of business. In addition, in the case of products using domestic regional names, consumers can be confused about the products with domestic ones, even though there is a standard for confusing country-of-origin labeling. Standard for changing the country-of-origin of agricultural, forestry products and livestock, fisheries products are not balanced. The results of this study can be used as basis data for revising the country-of-origin labeling.