• Korean Institute of Interior Design Journal
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• v.24 no.6
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• pp.68-78
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• 2015

The servicescape of a design hotel means the physical environment in which a service is produced and consumed. Servicescape refers to the comprehensive physical environment perceived by users and is composed of physical elements such as ambient conditions, space, function, signs, symbols and artifacts. For a successful operation of a design hotel, it is necessary to investigate the design hotel's servicescape types according to characteristics of design hotel's servicescape to provide various servicescape. The purpose of this study is to classify the types of servicescape on design hotel and analyze characteristics through the case study. A case study on Europe's design hotels to find various servicescape design methods was conducted. According to characteristics of design hotel the types, it is also categorized into four different types: history/tradition, art/culture, collaboration, locality. The case study demonstrated that European design hotels were making many efforts for their uniqueness and differentiation by considering the cultural and historical characteristics of their city and providing art and cultural space for their community. Design hotels in Korea should not only provide visitors with opportunities to have special experience through the nation's own culture and history but also serve as a place of community activities.

• Earthquakes and Structures
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• v.14 no.5
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• pp.425-436
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• 2018

The design of seismically isolated structures considering the stochastic nature of excitations, base isolators' design parameters, and superstructure properties requires robust reliability analysis methods to calculate the failure probability of the entire system. Here, by applying artificial neural networks, we proposed a robust technique to accelerate the estimation of failure probability of equipped isolated structures. A three-story isolated building with susceptible facilities is considered as the analytical model to evaluate our technique. First, we employed a sensitivity analysis method to identify the critical sources of uncertainty. Next, we calculated the probability of failure for a particular set of random variables, performing Monte Carlo simulations based on the dynamic nonlinear time-history analysis. Finally, using a set of designed neural networks as a surrogate model for the structural analysis, we assessed once again the probability of the failure. Comparing the obtained results demonstrates that the surrogate model can attain precise estimations of the probability of failure. Moreover, our proposed approach significantly increases the computational efficiency corresponding to the dynamic time-history analysis of the structure.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 1995.04a
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• pp.827-844
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• 1995

Total Quality Management (TQM) is the aggregated management philosophy for quality including production, operation, human resource, leadership, marketing, and etc. TQM is the advanced concept and philosophy rather than traditional "Quality Control" or "Quality Assurance". Nowadays, downstream costs has been increased, that made cost accountants' attention to costs of quality. Many countries have developed their own quality awards system in order to improve overall national quality level. The Deming Prize of Japan and Malcolm Baldrige National Quality Award (MBNQA) of United States are two representatives of quality prizes. We compared the two awards by means of their history, objective, coverage, and judging criteria. Deming Prize has a longer history than MBNQA. Deming Prize selects five winners a year, while MBNQA has two or three areas. The biggest difference is judgement criteria. The Deming Prizes focuses on statistical control which is a traditional quality control method, while MBNQA concentrates on modem business concept such as customer satisfaction. The suggestions to these awards are: evaluate more on information of quality; evaluate more on inter-functional relationship between quality control function and other link more financial success.e financial success.

• Proceedings of the KSR Conference
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• 2007.11a
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• pp.1058-1070
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• 2007

Internal and external railway management corporations are using the periodic replacement criteria of rail by accumulated passing tonnage and wear to maintain rails for servicing. However, internal the periodic replacement criteria of continuous welded rail(CWR) by accumulated passing tonnage is the one(50kg/m-5 million gross tonnage, 60kg/m-6 million gross tonnage) presented in Japan before. It was estimated with the fatigue life about 50kg N rail joints applied diesel train load but it wasn't applied to current conditions of track; elimination of rail joint, using the concrete slab track and operation of light train load and effect of welding, manufacturing technique, grinding of rail. Therefore, in this study, it was investigated the types of damage and cause in welded rails and examined standards and information resources. Also, this study presents preliminary data to revise the periodic replacement criteria of CWR by current accumulated passing tonnage in bending test of laid welded rail and a survey of track maintenance history of Seoul metro.

• Journal of Korean Neurosurgical Society
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• v.50 no.1
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• pp.60-63
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• 2011

Seizure is a foreseeable risk in patients with brain lesion. However, seizure during treating non-brain lesion is not a familiar situation to neurosurgeon. Posterior reversible encephalopathy syndrome (PRES) is a relatively common situation after systemic chemotherapy. The aim of this study is to make neurosurgeons aware of this potential medical problem. A 52-year-old woman with advanced gastric cancer, presented with low back pain due to spinal metastasis at the 4th lumbar vertebra. Ten cycles of chemotherapy with FOLFOX (5-Fluoruracil/Oxaliplatin) had been completed 23 days ago. Two days before the planned operation, a generalized tonic clonic seizure occurred. She did not have a history of hypertension or seizure. The seizure was stopped with lorazepam 4mg. The brain magnetic resonance (MR) imaging showed high signal changes in both parieto-occipital lobes on the T2-weighted images, and these were partially enhanced, suggesting PRES. The surgery was preceded by treatment with an antiepileptic drug. The MR images, taken 1.5 months after the seizure, showed that the lesion was no longer present. At 3 month follow-up, no additional seizure attack occurred without any seizure medication. The possibility of a seizure attack should be considered if the patient has a history of chemotherapy.

• Clinics in Shoulder and Elbow
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• v.18 no.2
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• pp.80-85
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• 2015

Background: This study measured the rate of adrenal insufficiency among rotator cuff tear patients, and determined the roles of steroid treatment and herbal medicine as specific risk factors of adrenal insufficiency. Methods: We prospectively evaluated the 53 patients who agreed to participate in the study and underwent arthroscopic rotator cuff repair due to a chronic full-thickness tear from March 2012 to September 2013. The diagnosis of adrenal insufficieny was made by rapid adrenocortical hormone test before the operation. We collected information regarding their history of steroid and herbal medicine treatment within the last 12 months. Results: The rate of adrenal insufficiency among the rotator cuff tear patients in our study was 18.9% (10 of 53 patients). Steroid treatment (p=0.034), frequency of local steroid injection (p=0.008), and herbal medicine treatment (p=0.02) showed significant association with the risk of adrenal insufficiency. Conclusions: In this study, careful taking of a patient's medical history, such as the use of steroids and herbal medicine, is important when investigating adrenal function before surgery.

• Journal of Chest Surgery
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• v.29 no.5
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• pp.569-572
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• 1996

A sixty nine-year-old mate patient was admitted with a chief complaint of exertional dyspnea. Lung perfusion scan revealed total perfusion defect of the of left lung and CT anglography showed the ab- rupt cutoff left pulmonary artery. He denied of trauma history, previous lower leg symptom and sign, or any embolic history. With the impression of chronic pulmonary thromboembolism of unknown etiology, operation was done under the cardiopulmonary bypass through a median sternotomy. After main pulmonary artery clamping and pulmonary arteriotomy, thromboembolectomy was done. Postoperative lung perfusion scan and CT angiography showed near normal left pulmonary blood flow. The patient was discharged on the postoperative 9th day without any postoperative complication.

• Advances in pediatric surgery
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• v.8 no.1
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• pp.54-61
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• 2002

Hirschsprung's disease (HD) is usually diagnosed in the newborn period and early infancy. The common presentation of HD in newborns consists of a history of delayed passage of meconium within the first 48 hours of life. The differential diagnosis in newborns is one of the clinical challenges of this disorder. A number of medical conditions which cause functional obstruction of the intestines are easily excluded. Neonates with meconium ileus, meconium plug syndrome, distal ileal atresia and low imperforate anus often present in a manner similar to those with HD in the first few days of life. Abdominal radiographs may help to diagnose complete obstruction such as intestinal atresia. Microcolon on contrast enema can be shown in cases with total colonic aganglionosis, ileal atresia or meconium ileus. Suction rectal biopsy or frozen section biopsy at operation is essential for differential diagnosis in such cases. HD is also considered in any child who has a history of constipation regardless of age. Older children with functional constipation may have symptoms that resemble those of HD and contrast enema is usually diagnostic. However, children with other motility disorders generally referred to as chronic idiopathic intestinal pseudoobstruction present with very similar symptoms and radiographic findings. These disorders are classified according to their histologic characteristics.; visceral myopathy, visceral neuropathy, intestinal neuronal dysplasia (IND), hypoganglionosis, immature ganglia, internal sphincter achalasia. Therefore, the workup for motility disorders should include rectal biopsy not only to confirm the presence of ganglion cells but also evaluate the other pathologic conditions.

• Advances in pediatric surgery
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• v.8 no.1
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• pp.6-10
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• 2002

To clarify the necessity of surgery for fistula-in-ano (FIA) in infant, a retrospective analysis of 82 cases FIA in infant were performed for 11 years period from 1987 to 1998. Group A included 44 cases in the period of surgery oriented treatment to 1992, and group B contained 38, period of feeding control oriented management (FC) after 1993. FC, that was indicated in case with loose stool and eczematoid perianal skin (LSES), composed of quit breast feeding, change of cow milk or complete weaning. Surgical decision was made after improvement of stool condition. Fistulectomy was performed in 29 cases (65.9 %) of group A. However, in group B, only 15 cases (39.5 %) required surgery (p=0.0036). Thirty-four cases in B had the history of LSES, and Fe was applied in 25, and was effective in 24. Among 24 cases, 21 showed complete healing with FC, 3 had surgery because of the persistent FIA, and 1 got operation due to no improvement of stool condition. In conclusion, Fe has to be applied to FIA in infant before surgery, particularly in cases with history of LSES. As one of the etiologic factors for FIA, LSES could be considered to this particular age group.

• Proceedings of the Korean Nuclear Society Conference
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• 2002.05a
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• pp.242-242
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• 2002

Two MIMAS MaX fuel rods base-irradiated in a commercial PWR have been reinstrumented and irradiated at a test reactor. The fabrication data for two MOX roda are characterized together with base irradiation information. Both Rods were reinstrumented to be fitted with thermocouple to measure centerline temperature of fuel. One rod was equipped with pressure transducer for rod internal pressure whereas the other with cladding elongation detector. The post irradiation examinations for various items were performed to determine fuel and cladding in-pile behavior after base irradiation. By using well characterized fabrication and re-instrumentation data and power history, the fuel performance code, COSMOS, is verified with measured in-pile and PIE information. The COMaS code shows good agreement for the cladding oxidation and creep, and fission gas release when compared with PIE dad a after base irradiaton. Based on the re-instrumention information and power history measured in-pile, the COSMOS predicts re-instrumented in-pile thermal behaviour during power up-ramp and steady operation with acceptable accuracy. The rod internal pressure is also well simulated by COSMOS code. Therfore, with all the other verification by COSMOS code up to now, it can be concluded that COSMOS fuel performance code is applicable for the design and license for MaX fuel rods up to high burnup.