• Cartoon and Animation Studies
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• s.36
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• pp.511-551
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• 2014

This study has examined genre tastes of Hollywood movies in Korea. A concept of cultural discount suggests that Hollywood film in foreign countries would be received differently according to its specific attributes. Following the suggestion of cultural discount, this study examines how local reception of Hollywood movies is different in Korea, focusing on film genre, production budget, and U.S. box office. The results show that genres are useful variables for such analysis, indicating that certain film genres are indeed suffering from relatively high cultural discount at the level of Hollywood movie import/distribution. Comedy, specifically, constitutes the crucial particularistic movie genre. However, this study does not find out any significant effect of movie genres on the box office in Korea, controlling the effect of U.S. box office and production budget. As Hollywood studios have recently produced multi-genre movies rather than genre-specific movies to induce a variety of audience who have different movie tastes, the influences of cultural discount disappeared among imported Hollywood movies in Korea. This study also reveals that Hollywood movies of high production budget and of successful U.S. box office are more preferred in Korea.

• Journal of Biosystems Engineering
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• v.34 no.2
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• pp.127-132
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• 2009

In the working population, muscle fatigue and musculoskeletal discomfort are common, which, in the case of insufficient recovery may lead to musculoskeletal pain. Workers suffering from musculoskeletal pains need to be rehabilitated for recovery. Isokinetic testing has been used in physical strengthening, rehabilitation and post-operative orthopedic surgery. Frequency analysis of electromyography (EMG) signals using the mean frequency (MNF) has been widely used to characterize muscle fatigue. During isokinetic contractions, EMG signals present strong nonstationarities. Hilbert-Haung transform (HHT) and autoregressive (AR) model have been known more suitable than Fourier or wavelet transform for nonstationary signals. Moreover, several analyses have been performed within each active phase during isokinetic contractions. Thus, the aims of this study were i) to determine which one was better suitable for the analysis of MNF between HHT and AR model during repetitive maximum isokinetic extensions and ii) to investigate whether the analysis could be repeated for sequential fixed epoch lengths. Seven healthy volunteers (five males and two females) performed isokinetic knee extensions at $60^{\circ}/s$ and $240^{\circ}/s$ until 50% of the maximum peak torque was reached. Surface EMG signals were recorded from the rectus femoris of the right thigh. An algorithm detecting the onset and offset of EMG signals was applied to extract each active phase of the muscle. Following the results, slopes from the least-square error linear regression of MNF values showed that muscle fatigue of all subjects occurred. The AR model is better suited than HHT for estimating MNF from nonstationary EMG signals during isokinetic knee extensions. Moreover, the linear regression can be extracted from MNF values calculated by sequential fixed epoch lengths (p> 0.0I).

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.3
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• pp.1294-1300
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• 2013

The purpose of this study is to increase contrast to noise ratio(CNR) in myocardial viability test by using contrast agent which highly content gadolinium(1mmol/mL) maximizing diagnostic value. This research method that four hundred four patients were underwent the MRI scanning two hundred eighty four of them were injected commercial contrast media which have 0.5mmol/L and the rest of them were injected new contrast media(gadobutrol) which have 1mmol/mL of molarity to study the contrast difference depending on the molarity of the contrast agent signal intensities of normal ventricle and left ventricle were measured to compare and evaluate signal to noise ratio(SNR) and CNR of the images. As result, 1mmol/mL contrast agent showed higher SNR by 25.13% in myocardium and 30.74% in left ventricle. CNR was proved to be better in 1mmol/mL contrast agent by 31.29%. The results above were all statistically meaningful. Therefore, contrast agent contenting more gadolinium which was 1mmol/mL in this study, could more effectively shorten T1 relaxation time, increase the signal intensity and at the same time maximize CNR and diagnostic value. This study firstly report the usefulness of 1mmol/mL contrast agent in patients allegedly suffering cardiac diseases and it is considered to increase diagnostic value.

• Korean Security Journal
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• no.42
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• pp.179-203
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• 2015

Nowadays college students in South Korea experience much stress related to job search due to the continuing unemployment crisis. Particularly, students who hold a degree in Security Services suffer from such stress at a higher level compared to other students because of the specific qualifications sought by potential employers. Therefore, this study investigates the effect of the stress related to job search on career maturity among the students of Security Services. The authors surveyed 250 students of Security Services from 7 colleges in Gyeonggi, Jeolla, and Gyeongsang provinces. Before distributing the questionnaire, its validity and reliability were assessed through the consultations with experts in the related fields. The data collected was examined via various statistical methods, including factor, reliability, correlation, and regression analyses using SPSS 20.0. The results indicated that socio-demographic characteristics affected job search stress and career maturity. Additionally, it was found that the job search-related stress of the students influenced their career maturity. To illustrate, job search stress and career maturity were positively related. Based on the results of the analyses, the authors confirm that the students of Security Services are suffering from a high level of stress resulting from job search, which impacts their career selection. Finally, policy implications are discussed, including alleviating the stress by providing diversified career choices to the students.

• Journal of Korean Society of Steel Construction
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• v.20 no.1
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• pp.105-119
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• 2008

In steel deck bridges suffering directly on wheel load according to the number of serviced years, the occurrence of fatigue cracks increases in structural details, which includes the cross section parts of the longitudinal rib and transversal rib, and so on. Through the control method for these fatigue cracks the increased thickness of the steel deck plate or the application of retrofit detail to the inside of the longitudinal rib was observed to be effective. This study suggests structural details for the retrofitted and non-retrofitted longitudinal rib. The target details in this study are the connection parts of the lo ngitudinal and transversal rib, and the slit parts of transverse rib where fatigue cracks were frequently reported in previous studies. In the analyses, detailed structural analyses were performed as parameters, which include the shape, change of size and attached position. From the results the stress reduction in the target details was observed to be larger in the retroffited details. Also, the improvement of fatigue strength is more effective in the retrofitted details with the vertical rib than the bulkhead plate.

• Membrane Journal
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• v.25 no.6
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• pp.530-537
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• 2015

Photovoltaic (PV) modules are environmentally energy conversion devices to generate electricity via photovoltaic effect of semiconductors from solar energy. One of key elements in PV modules is "Backsheet," a multilayered barrier film, which determines their lifetime and energy conversion efficiency. The representative Backsheet is composed of chemically resistant poly(vinyl fluoride) (PVF) and cheap poly(ethylene terephthalate) (PET) films used as core and skin materials, respectively. PVF film is too expensive to satisfy the market requirements to Backsheet materials with production cost as low as possible. The promising alternatives to PVF-based Backsheet are hydrocarbon Backsheets employing semi-crystalline PET films instead of PVF film. It is, however, necessary to provide improved barrier property to water vapor to the PET films, since PET films are suffering from hydrolytic decomposition. In this study, a polyurethane adhesive with reduced water vapor permeation behavior is developed via a homogeneous distribution of hydrophobic silica nanoparticles. The modified adhesive is expected to retard the hydrolysis of PET films located in the core and inner skin. To clarify the efficacy of the proposed concept, the mechanical properties and electrochemical PV performances of the Backsheet are compared with those of a Backsheet employing the polyurethane adhesive without the silica nanoparticles, after the exposure under standard temperature and humidity conditions.

• Journal of fish pathology
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• v.12 no.1
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• pp.24-31
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• 1999

Optimization and standardization of solid phase enzyme immunoassay were done for the diagnosis of edwardsiellosis in fish. The analyzed degree of immobilized antibody on surface of solid phase with peroxidase saturation method showed the optimized result by using partially purified $50{\mu}g/ml$ of rabbit anti-E. tarda Edk-2 antibody in sodium bicarbonate buffer for overnight incubation to cover the surface of polystyrene beads. Optimized immunoreaction was observed in the treatment of $50{\mu}g/ml$ of biotin conjugated antibody followed extravidin-peroxidase diluted 1 : 2,000 in PBS. The detectable concentrations of the this method were $1{\times}10^5$ cells/ml and $1{\times}10^5$ cells/ml expressed as the source of antigen amount for EDTA extraction and heat extraction, respectively. High cross-reaction of solid phase ELISA with the prepared rabbit and-E. tarda Edk-2 was observed against E. tarda strains isolated from flounder suffering from edwardsiellosis in aquatic farms of Korea. It suggested that the potential of this solid phase of ELISA technique is very powerful for the application to different strains of E. tarda isolated in farms of many different areas.

• Journal of Gifted/Talented Education
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• v.23 no.3
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• pp.453-477
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• 2013

The intent of this study is to fully investigate the major issues and challenges related to characteristics of gifted children from multicultural families in Korea. The gifted students of multicultural families are currently categorized as disadvantaged gifted students, but they need to be defined more deeply and separately due to the continuous increase of multicultural families. Most culturally different gifted children have common problem such as integrating into Korean culture, often suffering from emotional problems and their parents' economic disadvantage. Due to these problems a variety of issues arise. First, culturally diverse talented students have problems due to the alienation and the lack of equal opportunity given to gifted children of multicultural families in need. Secondly, another issue is whether or not the selection of these students for a gifted and talented program is administered equally and fairly. Thirdly students and teachers may have difficulty forming relationships. Fourth, there is a dire need to address the issue of a lack of formal education policy. for these students. Fifth, the formulation of a gifted and talented program solely for multicultural students is necessary. Sixth, educating the parents of such students remains a critical challenge. Seventh, the last issue arises from a lack of research regarding the identity of multicultural gifted children in Korea. In this study, we discuss each of these issues in-depth. Additionally the future of Korean Multicultural Gifted selection, training in the field, school direction and it's implications are discussed.

• Horticultural Science & Technology
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• v.33 no.1
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• pp.55-60
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• 2015

Skin blackening is a serious postharvest disorder occurring in 'Fuyu' persimmon fruits (Diospyros kaki, 'Fuyu'). Phenolic content, polyphenol oxidase (PPO) and peroxidase (POD) activity, and lipid saturation were investigated in skin tissue of 'Fuyu' fruits. The phenolic compounds were accumulated unevenly on fruit skin depending on sunlight exposure, i.e., the most accumulation on sunny side and the least on the opposite, shaded side. The fruits harvested from shaded branches inside the canopy showed relatively even distribution of phenolic compounds in the skin. The activity distribution of PPO and POD were also uneven but only in fruits suffering f rom skin b lackening disorder, w ith the h ighest and the lowest a ctivity of PPO and P OD, respectively, in the blackened area of the fruit. When the sunny, southern sides of fruits were marked at harvesting time and fruits were stored at low temperature, a round black spot, as a symptom of skin blackening disorder, developed during storage exactly on the marked region. In addition, the sunny side of fruit showed higher lipid saturation, thus indicating adaptation to high temperature caused by the sunlight. These results suggest that the skin blackening disorder of 'Fuyu' fruits can be considered as a kind of chilling injury symptom that develops on the high-temperature-acclimated skin tissue of sunlight-exposed fruits when they are later exposed to low temperature.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.8
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• pp.3552-3560
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• 2012

This study was conducted to find out the complaint rate of musculo-skeletal disorder and its related factors from male manufacturing workers at a nonferrous manufacturing industry. As for the research subjects, 302 workers selected from a nonferrous manufacturer located in Daejeon City, and as for the collection of data, a standardized anonymous questionnaire survey were conducted from May 1, 2011 to June 30, 2011. As a results, the complaint rate of musculo-skeletal disorders by each body part, the symptom of shoulders was 42.7%, the highest rate, followed by the waist, 36.8%, the neck and the hand/wrist/finger, 30.5% respectively, the leg and foot, 30.1% and arm/elbow, 20.9%. The complaint rate of musculo-skeletal disorder for the sociodemographic characteristics was significantly high as survey participants' age and BMI were low and in the group having low subjective health condition. The complaint rate of musculo-skeletal disorder for the health-related behavior characteristics was significantly high in the group having been absent from work due for diseases, in the group having received outpatient services, in the group having been hospitalized for treatment, in the group not having a regular exercise and in the group having insufficient sleeping hours. Finally, the complaint rate of musculo-skeletal disorder for the job-related characteristics was significantly high in the group suffering from the physical burden of their work, in the group working while bending at the waist and in the group carrying out repetitive tasks.