• Journal of the Mineralogical Society of Korea
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• v.31 no.3
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• pp.149-159
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• 2018

The Gyeongju Bunhwangsa Stone Brick Pagoda, which was built with bricks of andesite, is the oldest brick stone pagoda of Silla period. The damage patterns in the stone pagoda are pollutants such as white crust, black crust, discoloration, soil adsorption, and microorganisms, and repair materials. The damage pattern of structural factors in the Stone Brick Pagoda is a bulging phenomenon. According to the X-ray diffraction analysis, white crust are mainly consist of calcite ($CaCO_3$) and thermonatrite ($Na_2CO_3{\cdot}H_2O$) that evaporite finds in nature. Damage pattern varies depending on location of stone pagoda. The pollutants are first story body of pagoda. The microorganisms are confirmed at base, lion statues, first and second story capstone, and repair materials observed at base. The bulging phenomenon appeared on the first story body of the pagoda. Occupancy rates by damage type were higher in the order of microorganisms, pollutants, repair material, bulging phenomenon, and peeling. The highest percentage of individual damage patterns were black microorganisms (39.3%), followed by lichen (17.9%), discoloration (8.0%), white crust (5.5%), cement mortar (5.1%) and peeling (3.1%).

• Journal of the Korean Institute of Gas
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• v.9 no.4 s.29
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• pp.6-10
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• 2005

This paper was studied on the damage behavior of stainless steel (STS 304) for gas boiler with specific resistance. The electrochemical polarization test of STS304 for gas boiler was carried out. And the anodic polarization and damage aspect, such as pitting corrosion, was considered. With being low specific resistance, the passive current density of STS 304 increases, passive region and pitting potential is low. Also, the patting aspect of STS304 In specific resistance $74{\Omega}{\cdot}m$ water little appears, the pitting number increases and the damage behavior, such as pitting aspect, gradually grow bigger with being low specific resistance.

• Journal of the Korean Arthroscopy Society
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• v.12 no.1
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• pp.24-31
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• 2008

Purpose: We purposed to analyze the incidence and the patterns of the injuries associated with anterior cruciate ligament(ACL) tears. Materials and Methods: We retrospectively reviewed 547 knees that had undergone ACL reconstructions and compared the associated injuries according to the time of injury(acute vs. chronic), the cause of injury(sports vs. non-sports) and the type of sports. Results: Medial collateral ligament(MCL) injury and bone contusion were more in acute injury group less than 3 months after trauma(p=0.001, 0.019) and the injuries of medial or lateral meniscus were more in chronic injury group more than 3 months after trauma(p=0.014, 0.029). The trochlea in acute injury group(p=0.027) and the medial femoral condyle in chronic injury group(p=0.011) had higher incidence of chondral injury. Grade I, II chondral injury was frequent in acute injury group(p=0.016) and grade III, IV chondral injury was frequent in chronic injury group(p=0.017). Lateral meniscus injury was frequent in sports injury group(P=0.035). Medial collateral ligament injury was frequent in ski(P=0.005), and chondral injury was in gymnastics(P=0.017). Conclusions: The incidences of medial and lateral meniscus tears and grade III, IV chondral defects were high in chronic injury group. According to the causes of the tears and the types of sports, some differences in the incidence and pattern of associated injuries were found.

• Journal of Korean Orthopaedic Sports Medicine
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• v.1 no.1
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• pp.4-8
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• 2002

관절와 상완관절 상부의 병적 변화로 유발되는 회전건개의 내적 충돌(internal impingement)이나 상부 관절순의 병변(SLAP)은 동통, 특정한 위치에서의 증상 및 MRI 검사등을 통해 의심할 수 있으며, 확진은 관절경적 검사에 의한다. SLAP 병변과 internal impingement의 병변은 서로 영향을 끼칠 수 있으며 특정적인 관절 순의 손상 양상 및 회전건개의 손상을 유발하게 된다. SLAP병변의 치료는 병형의 양상에 따라 결정되며, internal impingement의 치료는 전방관절불안정성에 대한 치료가 주가 된다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.30 no.3A
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• pp.309-316
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• 2010

This paper proposed a nonlocal anisotropic damage model to simulate the behavior of plain and reinforced concrete structures that are predominantly tensile and compressive load. This model based on continuum damage mechanics, used a symmetric second-order tensor as the damage variable. For quasi-brittle materials, such as concrete, the damage patterns were different in tension and in compression. These two damage states were modeled by damage evolution laws ensuring a damage tensor rate proportional to the total strain tensor in terms of principal components. To investigate the effectiveness of proposed model, the double edge notched specimen experimented by nooru-mohamed and reinforced concrete bending beam were analyzed using the implementation of the proposed model. As the results for the simulation, the nonlocal anisotropic damage model with an adequate control of rupture correctly represented the crack propagation for mixed mode fracture. In the structural failure of reinforced concrete bending beam, the proposed model can be showed up to a very high damage level and yielding of the reinforcements.

• Journal of Digital Convergence
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• v.10 no.10
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• pp.415-421
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• 2012

The purposes of this thesis are to grasp the aspect of injuries by violence which is the recent social issue, analyze the relationship with socioeconomic factors and provide it as the basic material of policy development and prevention. With the specimen in-depth investigation materials of injured patients of emergency room which is injuries examination system based on medical institution, this thesis compared injuries by violence with aspect of other injuries and conducted logistic regression analysis after controlling gender, age, educational level and occupation mutually. Women showed more danger to be exposed to injuries by violence than men. The less the age was, the more danger by violence was. The more academic background was, the less rate to be exposed to violence was. For occupations, there were dangerous in order of service workers, shop and market sales workers, unemployed, elementary occupations. In conclusion, Some differences of socioeconomic factors made an effect on the danger of injuries by violence victim.

• Journal of the Korean Arthroscopy Society
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• v.9 no.1
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• pp.46-50
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• 2005

Purpose: The purpose of this study is to evaluate the accuracy of magnetic resonance imaging (MRI) in the diagnosis of acute anterior cruciate ligament (ACL) injury and its tear pattern in comparison with arthroscopic finding. Materials and Methods: Sixty consecutive patients with acute ACL injury were taken NRI followed by arthroscopic examination between January 2002 and June 2004. MRI findings were reviewed according to the presence of ACL discontinuity, diffuse swelling or thickening, focal edema, collapse on distal end, and any combined tear. The pathologic findings were then confirmed arthroscopically. The diagnostic accuracy of MRI on ACL tear pattern was analyzed by obtaining its positive predictive value. Results: All fifty two cases with presence of discontinuity on MRI showed ACL rupture arthroscopically. The location of ACL tear, diffuse swelling and focal edema on MRI also corresponded with arthroscopic findings respectively. However, the diagnostic accuracy of MRI was relatively lower in the presence of other ACL patterns such as collapses and combined tear. Conclusion: Preoperative MRI findings seem to be in accordance with arthroscopic findings and is significantly accurate in detection of location and diffuse swelling and focal edema of ACL tear.

• The Journal of the Korea Contents Association
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• v.12 no.4
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• pp.380-389
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• 2012

This study aims to argue fundamental issues on factors associated with revenues of hand injury patients to effectively manage hospitals specialized in hand injuries. The study employes 2,461 patients who entered S hospital from 2008 to 2010 with hand injuries. The followings are the results of the study. First, there is significant difference among occurrence of hand injuries with regard to demographics of patients. That is, it is likely to have longer average length of stay(ALOS) of male over female, of the elderly over infants and toddlers, and vice versa on average daily patient revenues. Also, compared to patients with traffic and labor insurance, patients with health insurance is likely to stay longer at lower daily cost. Fifth, demographics and incidence of hand injuries were significantly associated with average length of stay(ALOS) and average daily patient revenues. That is, male over female, age over 60 over any other age categories, patients with traffic and labor insurances over one with health insurance, cases with laceration, avulsion and bone transplantation over any other types of hand injury patients were factors significantly related to ALOS and average daily patient revenues. In sum, it is needed to focus on education and campaign to raise attentions on preventing various hand injuries. Also, managers at hospitals specialized in hand injuries should pay attention on issues such as reducing ALOS to run the organization effectively.

• Korean Journal of Biological Psychiatry
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• v.6 no.1
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• pp.21-29
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• 1999

Traumatic Brain Injury(TBI) of any severity can result in broad and persisting biopsychosocial sequelae. Depression after TBI occur at a greater frequency than in the general population, with estimates approaching 25% to 50% for major depression, and 155 to 30% for dysthmia. Acute onset depressions are related to lesion location and may have their etiology in biological response of the injured brain, whereas delayed onset depressions may be mediated by psychosocial factors, suggesting psychological reactions as a possible mechanism. Anxious depressions are associated with right hemisphere lesions, whereas major depressions alone are associated with left dorsolateral frontal and left basal ganglia lesions. However, there is insufficient information to postulate a specific neuroanatomic model for TBI-related depression.

• Therapeutic Science for Rehabilitation
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• v.7 no.1
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• pp.11-26
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• 2018

Objective : This case study was to verify effects of cognitive rehabilitation and swallowing rehabilitation on Hypoxic-Ischemic Brain Injury patient by Suicidal Attempt. Methods : The subject was a 32-year old Hypoxic-ischemic brain injury patient by suicidal attempt. He received treatment once a day five times a week, for a half an hour for each session from September 8th to December 16th, 2016. Treatment were cognitive and swallowing rehabilitation. He was assessed based on Mini-Mental State Examination-Korean (MMSE-K), Korean-Modified Barthel Index (K-MBI), Computerized Neurocognitive Function Test (CNT), Videofluoroscopic Dysphagia Scale (VDS), American Speech-Language-Hearing Association National Outcomes Measurements System (ASHA-NOMS). Results : The patient's total MMSE-K score increased from 25 to 27. His K-MBI score increased from 74 to 88. His memory, attention span, and executive function (DST, VST, SWCT, WCST) by CNT scores were improved. VDS score has no changes to 34, 44.5 and 34. ASHA-NOMS score also has no change to 6, 2 and 6. Conclusion : The study showed that the application of the treatment of cognitive and swallowing in hypoxic-ischemic brain injury patient by suicidal attempt results has positive effects on cognitive functions, and swallowing function.