• The Journal of Engineering Geology
• /
• v.17 no.1 s.50
• /
• pp.101-113
• /
• 2007

A landslide was occurred due to soil cutting for construction to expand the Donghae express highway in Dong-hae-City, Korea. The total area of the landslide was about $9,550m^2$ with 100 m of width and 87m of height. The landslide was occurred due to the internal factor of the unstable geological structure including the clay layer and the external factor of continuous heavy rainfalls. As the result of field instrumentation during the landslide, the horizontal displacement of the slope ground increases with increasing the accumulated rainfall by continuous rainfall during the rainy season. Also, the depth of sliding failure was decided by the horizontal displacement distribution during landslide occurrence. It makes sure that the horizontal displacement starts from the depth of sliding failure and the depth of sliding failure matches well with the location of the clay layer. As the slope stability analysis using Bishop's Simplified Method at the landslide area, the safety factor of slope during the rainy season was 0.53. This safety factor of slope was enough to trigger the landslide at this area. The depth of sliding failure obtained by analytical method matches well with the depth of the clay layer.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
• /
• v.13 no.2
• /
• pp.79-90
• /
• 2018

A wide range of challenges and obstacles still exist for "mumpreneurs" in creating or developing their business ventures. It is important to investigate the factors regarding why many mothers choose to become self-employed and partially abandon the benefits offered by traditional employment. This study focus on the individual, but an implied positive relationship also exits between motivational factors and mumpreneurs in Korea. Thus, four factors in this study - push, pull, environmental, and financial factor - raise the practical implications regarding the motivational factors of women entrepreneurial challenges in Korea. This study's findings also consider the nature and changes of Korean mumpreneurs' motivational factors, their challenges, and attitudes as business owners in Korean labor markets. This study's findings suggest that a combination of push and pull factors could similarly trigger new business ownership. The empirical contrast in such variables as motivations or barriers to mumpreneurship, in realities provide a superior understanding of women's tendency or willingness toward business creation, as they struggle to survive in the Korean labor market. They tend to start their own businesses to gain more responsibilities in both work and their families, and want to manage their own lives to contribute as capable members of society. Therefore, any Korean mother, regardless of any industry-specific experience, wants to use entrepreneurship as a shortcut to satisfy her need for self-fulfillment. The general motivational factors for becoming a mumpreneur exist among both external and internal situations. The circumstances beyond their control, such as job termination or unemployment, compel these mothers into the workforce due to their responsibility toward their families, but they simultaneously dream of self-achievement and development. Most mumpreneurs in Korea also want to demonstrate their potential and achieve societal recognition as well as increase in property.

• Journal of Arbitration Studies
• /
• v.20 no.1
• /
• pp.3-20
• /
• 2010

Traditionally, finality has been regarded as one of virtues of arbitration. However in many cases absence of appeal process in arbitration is also a factor deterring people from choosing arbitration. Even though unsatisfied party may resort to a court for annulment of an award, it is allowed only when there are procedural defects. When there are substantive defects in matters of fact or matters of law, it is not easy or almost impossible to bring the case on the table again. The introduction of arbitration appeal process has been discussed in international arbitration fora, and some countries have already been adopting appeal process. Realizing this trend, it is time for us to consider adopting similar appeal process. Arbitration being based on the party autonomy, there's no good reason to prohibit appeal when the parties agree to do so. Arbitration appeal should be allowed within arbitration system itself, rather than resorting to a court, so that many virtues of arbitration can be maintained in the appeal. In designing an arbitration appeal system, following measures should be considered: minimum amount in dispute to trigger the right of appeal should be set in order to reduce the volume of appeal; losing appellant should be responsible for the legal cost of his opponent in order to deter non-meritorious appeals; time limits on initial appeal application and subsequent briefs should be set in order to accelerate appeal process; and, appeal tribunals should be composed of more experienced arbitrators in order to provide more accurate award. If we are equipped with a well designed appeal process within arbitration system, Korea will be able to emerge as an attractive international arbitration forum.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.15 no.1
• /
• pp.475-481
• /
• 2014

Recently, it is used to apply various improved methods to determine the cause of traffic accidents. However, most of vehicle black box usually start to store the video information by an event trigger in case that the impact value at that time exceeds the threshold impact value as compared the threshold impact value saved in advance with the current impact value. there are problems with above method that a lot video information should be saved in the memory card of the vehicle black box, and the user should delete the unwanted video information every time because of unclassified video store. In this paper, we propose the ontology-based context aware algorithm that the vehicle black box recognize the situation, and then remove the video data with a low weighting factor by itself for efficient memory management.

• Proceedings of the Materials Research Society of Korea Conference
• /
• 2009.11a
• /
• pp.39.1-39.1
• /
• 2009

NiTi alloy is widely used innumerous biomedical applications (orthodontics, cardiovascular, orthopaedics, etc.) for its distinctive thermomechanical and mechanical properties such as shape memory effect, super elasticity, low elastic modulus and high damping capacity. However, NiTi alloy is still a controversial biomaterial because of its high Ni content which can trigger the risk of allergy and adverse reactions when Ni ion releases into the human body. In order to improve the corrosion resistance of the TiNi alloy and suppress the release of Ni ions, many surface modification techniques have been employed in previous literature such as thermal oxidation, laser surface treatment, sol-gel method, anodic oxidation and electrochemical methods. In this paper, the NiTi was electrochemically etched in various electrolytes to modify surface. The microstructure, element distribution, phase composition and roughness of the surface were investigatedby scanning electron microscopy (SEM), energy-dispersive X-ray spectrometry(EDS), X-ray diffractometry (XRD) and atomic force microscopy (AFM). Systematic controlling of nano and submicron surface features was achieved by altered density of hydro fluidic acid in etchant solution. Nanoscale surface topography, such as, pore density, pore width, pore height, surface roughness and surface tension were extensively analyzed as systematical variables.Importantly, bone forming cell, osteoblast adhesion was increased in high density of hydro fluidic treated surface structures, i.e., in greater nanoscale surface roughness and in high surface areas through increasing pore densities.All results delineate the importance of surface topography parameter (pores) inNiTi to increase the biocompatibility of NiTi in identical chemistry which is crucial factor for determining biomaterials.

• Journal of Ocean Engineering and Technology
• /
• v.22 no.5
• /
• pp.7-24
• /
• 2008

Masan-Jinhae Bay, in Korea, is known for its frequent algal bloom outbreaks. This study was conducted in order to examine the environmental characteristics of the area, with the aim of identifying indicators that could be used to speculate about future algal blooms. The water temperatures and salinities in Haengam Bay, one of the small inner bays within Jinhae, appeared to re relatively higher than those in Masan and Jinhae bays, across most seasons. Furthermore, stratification begins to develop in all three regions from spring to summer as a result of the local heating effects and an increase in the efficient from the surrounding land. As a result, anoxic conditions appear near the bottom layer of the bay, leading to the deterioration of water quality, which has been identified as one of the causes of bloom outbreaks. Compared to Haengam and Jinhae bays, concentrations of DIN and DIP were remarkably higher in Masan Bay. However, the mean ratio of DIN to DIP was 3.3$\sim$13.6 in all three regions throughout the year, suggesting that nitrogen can function as a growth-limiting factor for phytoplankton. The results of mathematical models showed that cumulative organic pollutants may be a trigger for direct algal bloom occurrences, since residual tidal currents appeared to be less than $3\;cm\;\cdot\;s^{-1}$. Furthermore, computed DO concentrations in the four small inner bays of Jinhae during the summer appeared to be $3\;cm\;\cdot\;l^{-1}$ indicating a hypoxic state. Likewise, computed Chl-a concentrations turned out to be more than $0.01\;mg\;\cdot\;l^{-1}$, indicating eutrophication across most seasons. Based on the overall results, Masan-Jinhae Bay appeared to possess a very high potential for algal bloom outbreaks at anytime during the year.

• International Journal of Quality Innovation
• /
• v.9 no.3
• /
• pp.71-91
• /
• 2008

The definition of cycle time is the time from the wafer start to the wafer output. It usually takes one or two months to get the product since customer decides to produce it. The cycle time is a critical factor for customer satisfaction because it represents the response time to the market. Long cycle time reflects the ineffective investment for the capital. The cycle time is very important for foundry because long cycle time will cause customer unsatisfied and the order loss. Consequently, all of the foundries put lots of human source in the cycle time improvement. Usually, we make decisions based on the experience in the cycle time management. We have no mechanism or theory for cycle time management. We do work-in-process (WIP) management based on turn rate and standard WIP (STD WIP) set by experiences. But the experience didn't mean the optimal solution, when the situation changed, the cycle time or the standard WIP will also be changed. The experience will not always be applicable. If we only have the experience and no mechanism, management will not be work out. After interview several foundry fab managers, all of the fab can't reflect the situation. That is, all of them will have an impact period after product mix or utilization varied. In this study, we want to develop a formula for standard WIP and use statistical process control (SPC) concept to set WIP upper/lower limit level. When WIP exceed the limit level, it will trigger action plans to compensate WIP Profile. If WIP Profile balances, we don't need too much WIP. So WIP level could be reduced and cycle time also could be reduced.

• Biomedical Science Letters
• /
• v.22 no.4
• /
• pp.220-226
• /
• 2016

Hypertriglyceridemia induces atherosclerosis and accordingly is a major causative factor in cardiovascular diseases. Macrophages that develop into foam cells are a crucial component in the development of atherosclerosis. Monocytes can be differentiated into M1 or M2 macrophages. M1 macrophages promote inflammatory responses, whereas M2 macrophages exhibit anti-inflammatory activity. Recently, we found that triglyceride (TG)-treated THP-1 monocytes express a variety of macrophage-specific surface markers, indicating that TG treatment could trigger the differentiation of monocytes into macrophages. In this study, we investigated whether TG-induced macrophages express the M1 or the M2 macrophage phenotype. THP-1 cells were treated with various concentrations of TG for different times and the expression of M1- and M2-specific markers was evaluated by RT-PCR. We found increased expression of M1 markers (CD40, CD80, and CD86) in TG-treated THP-1 cells in a TG dose- and time-dependent manner. The expression of M2 markers (CD163, CD200R, and CD206) showed variable responses to TG treatment. Taken together, our results indicate that TG treatment triggers the differentiation of monocytes into M1 macrophages, rather than into M2 macrophages, suggesting that TG contributes to pro-inflammatory responses.

• Childhood Kidney Diseases
• /
• v.15 no.1
• /
• pp.76-80
• /
• 2011

Cytomegalovirus (CMV) is the single most common infection following kidney transplantation and despite prophylactic strategies and the development of new antiviral agents, it still remains a cause of considerable morbidity and mortality. Current literature suggests that CMV infection may trigger rejection. We report a case of late CMV disease in a preemptive seropositive recipient who did not receive CMV prophylaxis. Diarrhea and abdominal cramping persisted after the administration of mycophenolate mofetil (MMF) six months after transplantation and resulted in ileal perforation at eight months after transplantation. The boy recovered after six weeks of treatment with ganciclovir. MMF has been mooted as a risk factor for CMV infection since its introduction, and further investigations are required to confirm its role. More attention to infectious complications is necessary and serial monitoring of viral load is recommended when MMF is administered.

• Asian Pacific Journal of Cancer Prevention
• /
• v.17 no.2
• /
• pp.575-579
• /
• 2016

The aim of this research is to determine the characteristics of endothelial factors and the hemostatic system conditions with malignant neoplasms patients, which were exposed to ionizing radiation. Total number of examined people is 223, 153 of them are patients with gastrointestinal tract oncopathology. The article presents the results of the analysis of numerical indicators of endothelial condition and platelet hemostasis of patients, who had cancer. They lived in the regions of Kazakhstan, subjected to contamination of radionuclides as a result of nuclear weapons tests, which took place in this region from 1949 to 1989. These results then were compared to cancer patients and healthy individuals with no radiation risk. The study revealed the presence of higher levels of endothelial dysfunction and following trigger of the hemostatic system in patients with malignant tumors of the gastrointestinal tract. In particular, the defined high degree of endothelial dysfunction include endothelium-dependent vasodilation, content desquamated endothelial cells in peripheral blood and von Willebrand factor. These indicators have a clear correlation with the degree of disorder of studied parameters of the hemostasis, which can cause the development of thrombotic complications.