• The Bulletin of The Korean Astronomical Society
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• v.39 no.2
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• pp.97.2-97.2
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• 2014

In this paper, we study the stability and dynamics of a magnetic field producing the M6.6 class solar flare taking place in NOAA active region (AR) 11158 on 2011 February 13th. Toriumi et. al. (2013) recently suggest that a fine scale magnetic structure on the photosphere gives a major possibility to produce the M6.6 class flare. On the other hand, they don't discuss the torus instability as a plausible mechanism even though Zhao et. al. (2014) and Janvier et. al. (2014) suspect it as the trigger mechanism of X2.2 class flare taking place later in the same AR. We are the first to investigate the stability of a nonlinear force-free field (NLFFF) prior to the M6.6 class flare against the torus instability by using analytical and numerical approaches. Consequently, we found that our NLFFF is quite stable against small perturbation. This result supports that the flare is triggered by the photospheric motion suggested by Toriumi et. al. (2013). We further perform another MHD simulation with an anomalous resistivity using the NLFFF as an initial condition. As a result, we found the eruption of strongly twisted lines. We compare our simulation results with observations and discuss relevant dynamics in detail.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.27 no.1
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• pp.39-47
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• 2005

The purpose of this study is to review the prognosis of the TG Osseotite implant(3i Co, USA) placed in partial edentulous area of oral cavity and to suspect the possible causes leading to failure. 124 TG Osseotite implants that had been inserted between 2000 - 2002 were followed up for 2 years(avg : 9.5 months) in function. Medical records, and radiographs were evaluated and analyzed by the over all success rate, gender and age factor, general disease, implant fixture length and diameter, implant site, bone density, and various surgical methods. Chi square test was used statistically. Of the 124 TG Osseotite implants, 9 implants(7.3%) were removed in early phase and 3 implants(2.4%) were in late phase. The cumulative survival rate was 90.2%. The failure of the TG Osseotite implant was closely related with the use of bone graft techniques such as sinus elevation or immediate implantation and not with the age, sex, general disease, implant site, bone density of implanted site. The failure of the TG Osseotite implant was well developed when it was the wide type of implant and it was inserted for single tooth replacement. The developement of peri-implantitis was the most important factor in the failure of the TG Osseotite implant.

• Journal of Agricultural Extension & Community Development
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• v.22 no.3
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• pp.269-283
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• 2015

This study aimed at identifying the effectiveness and preference orientation of an social integration policy for rural married immigrant women according to eight life areas. For this purpose was surveyed non-multicultural residents and multicultural couples. By analysis, frist, the assimilation orientation as an model of integration policy for the women was preferred most highly at the life language area by every respondent. The multiculturalism orientation was preferred most highly at the private area such as dietary-life culture. Second, ANOVA analysis showed that the positive effectiveness on the language policy are evaluated most highly by the respondent having assimilation preference orientation. And the positive effectiveness on dietary-life culture policy are evaluated most highly by the respondent having multiculturalism orientation. Third, positive effectiveness level of the policy estimated by the resident was lower than it of multicultural couple significantly. In conclusion, based on results of this study, it can be seen as on that point preference orientation of integration policy for the women, the domain specificity is present in the attitude of the multicultural couple and resident. Therefore it suspect that integration policy for the women should be considered differently according to life sphere.

• Archives of Craniofacial Surgery
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• v.19 no.2
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• pp.127-130
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• 2018

Mastocytosis is a rare disease which occurs in both children and adults, and it can manifest as a solitary or multiple skin lesions. Both can cause cutaneous or systemic symptoms. Because of the heterogeneity of clinical presentation of mastocytosis and its rare prevalence, it can be hard to suspect the mastocytosis at the first time. Most solitary mastocytomas are about 1-5 cm in diameter and have features of brownish-yellow, minimally elevated plaques with a smooth shiny surface. This article presents a case of solitary mastocytoma which occurred in neonate and that we treated through surgical excision. In histopathological examination, it consisted of c-kit-positive mast cells. Although pediatric cutaneous mastocytosis might regress spontaneously, clinicians should keep in mind that it could be associated with systemic mastocytosis which involves hematopoietic system.

• The Journal of the Korea institute of electronic communication sciences
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• v.6 no.1
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• pp.105-110
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• 2011

Embezzlement incident of staff at the casino occurred. Staff of some casinos have lower job satisfaction, moral gap is seriously considering a change jobs. In addition, cash lure of large amounts and a lack of money management system causes embezzlement incident. In this paper, the uniqueness of the casino industry and that employee job satisfaction is investigated. Content analysis of occurrence for casino embezzlement incident and tracking that bank account and bank check, suspect's call list, and so on that digital forensic investigation technology will be studied. Problems and solutions suggest that conducted a loss prevention program, a digital forensics technology and introduce of investigator. Through this study, the computerization of the casino business to embezzlement accident prevent will contribute to that give back profits of property to society, the develop of forensic investigation technology.

• The Korean Journal of Cytopathology
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• v.6 no.2
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• pp.148-155
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• 1995

Urinary cytology has become an essential element in the diagnosis and management of transitional ceil carcinoma(TCC) of the urinary tract. It has the advantage of being noninvasive, inexpensive, and easily accessible. Besides that it can even detect malignancy when unsuspected at cystoscopy. We report a retrospective review of urine cytology un the diagnosis of 83 TCC cases that underwent 295 cytologic evaluation. All patients had biopsy-proven TCC of the bladder, ureter and renal pelvis, The overall incidence of the positive cytology cases was 66.2%. To define the cytologic features of tumor cells, we tried to use three cytologic gradings such as "grade 1", "grade 2", and "grade 3" according to the cytologic degree of anaplastic neoplastic cells. These cytologic gades of TCC were relatively well correlated with the histologic grade and tumor invasiveness. This result suggests that the recognition of characteristic cellular features of TCC can suspect the histologic grade and tumor stage. The false negative TCC cases were 78.9%. They showed severe inflammatory or bloody background and a few neoplastic cells. Therefore, a cautious approach for accurate interpretation, personal experience, and proper fixation and processing could expand the role of urinary cytology.

• Journal of Advanced Marine Engineering and Technology
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• v.23 no.3
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• pp.331-337
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• 1999

Cracks on the cylinder block of diesel engines will often happen due to cyclic load and thermal stress. According to the Classification Societies' rules welding reparis of cylinder block made of cast irons are generally not permitted. However such welding repairs became inevitable taking enormous cost and time for their renewal into consideration. In this study repair welding methods for the clinder blocks made of gray cast irons were reviewed and the tests of their welds were carried out in order to purpose the repair welding meth-ods of packing seat and o-ring seat of cylinder block and apply them to the practice. The following conclusions are botained :1 The tensile strength of weld of cast iron more than that of base metal can be obtained by means of preheating keeping temperature above $100^{\circ}C$ between welding pass-es preventing slag inclusion peening and cramping weld metal by studs. 2. The suspected crack by a magnetic particle test due to different magnetic permeability can be identified which are not associated with a mechanical discotinuity.

• The Journal of the Korea Contents Association
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• v.7 no.12
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• pp.105-113
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• 2007

Company without voluntary agreement(nature) of police, violation on the reason of company, violation on identification state, Violations on duties to notify the party's family members and to allow the party have a chance to be notified. Violation on duty to notify the party to have the right to call an investigation authority, Violation on the time of company, Violation on the place of company, and Violation on using force such as compulsory during the process of voluntary company in state of illegal voluntary company. It also has to decide whether the evidences are illegal and eliminated by these two requisites even in probative value and evidence admissibility on confession of the party under the illegal voluntary company.

• The Korean Journal of Food & Health Convergence
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• v.4 no.2
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• pp.13-16
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• 2018

Acupuncture has been clinically used to treat patients suffering from eye disease. It has been used in efforts to help preserve vision for those with a wide range of eye conditions including glaucoma and intraocular hypertension. High intraocular pressure (IOP) is usually associated with glaucoma and conventional treatment is focused on lowering IOP. Controlling this risk factor should help hasten the onset of glaucoma for those patents that are suspect or borderline candidates for glaucoma. In review of the limited scientific research there are not many studies that support conclusive evidence for the use of acupuncture on eye diseases and particularly glaucoma and ocular hypertension. For the information that does exist, diverse results from various interventions make it difficult to draw clear conclusions. The existing studies use different acupoints, techniques, frequencies, and durations. Individual treatment strategies according to the practitioner's subjective experience, patient condition, and the use of other complimentary and natural strategies is ideal for taking a more dynamic and wholistic approach to getting results. Until more pragmatic research models are funded and implemented, case reports can offer good examples of experiential and objective outcomes. This case report presents a 61 year old healthy female patient diagnosed with open-angle borderline glaucoma with elevated IOP. The patients IOP was successfully reduced with 12 treatments over three months using scalp electro-acupuncture and distal Master Tung points.

• Analytical Science and Technology
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• v.23 no.3
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• pp.269-277
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• 2010

Air samples were collected and analyzed to investigate regional level of PAHs and its emission sources. The average concentrations of PAHs in the suburban (Gwanak) and in the urban (Seodaemun) area were $16.52\;ng/m^3$ and $59.1\;ng/m^3$, respectively. Phenanthrene, fluoranthene, pyrene, and fluorene were predominant PAHs species, as their sum contributed to 55.6% and 60.8% of the total PAHs, respectively. The possible major source of PAHs was suspect to be the combustion of diesel fueled vehicles in both areas, particularly for Seodaemun.