• 한국경영과학회:학술대회논문집
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• 한국경영과학회 2003년도 추계학술대회 및 정기총회
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• pp.57-60
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• 2003

As the business dependency to information systems and the frequency of the large scale disasters increase, implementing the disaster recovery center has been a common practice. However, since there has been little quantitative decision method for the distance between the data center and the disaster recovery center, the distance decision has been commonly made by qualitative guidelines. In this research, the decision method for the optimal distance between the data center and the disaster recovery center is developed, using the cost analysis including the operation cost and the expected disaster cost. An illustrative numerical example is provided.

• Archives of Plastic Surgery
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• 제43권5호
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• pp.411-417
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• 2016

Background Facial hypoesthesia is one of the most troublesome complaints in the management of facial bone fractures. However, there is a lack of literature on facial sensory recovery after facial trauma. The purpose of this study was to evaluate the facial sensory recovery period for facial bone fractures using Neurometer. Methods Sixty-three patients who underwent open reduction of zygomatic and blowout fractures between December 2013 and July 2015 were included in the study. The facial sensory status of the patients was repeatedly examined preoperatively and postoperatively by Neurometer current perception threshold (CPT) until the results were normalized. Results Among the 63 subjects, 30 patients had normal Neurometer results preoperatively and postoperatively. According to fracture types, 17 patients with blowout fracture had a median recovery period of 0.25 months. Twelve patients with zygomatic fracture had a median recovery period of 1.00 month. Four patients with both fracture types had a median recovery period of 0.625 months. The median recovery period of all 33 patients was 0.25 months. There was no statistically significant difference in the sensory recovery period between types and subgroups of zygomatic and blowout fractures. In addition, there was no statistically significant difference in the sensory recovery period according to Neurometer results and the patients' own subjective reports. Conclusions Neurometer CPT is effective for evaluating and comparing preoperative and postoperative facial sensory status and evaluating the sensory recovery period in facial bone fracture patients.

• 환경생물
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• 제23권4호
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• pp.390-397
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• 2005

The inhibition of cell recovery might be proceeded via either the damage of the mechanism of the recovery itself or via the formation of irreversible damage which could not be repaired at all. Both these processes may take place at the same time. Any of these possibilities would result in a decrease in both the rate and extent of cell recovery. To distinguish them, a quantitative approach describing the process of recovery as a decrease in the effective radiation dose was applied to experimental data on the recovery from potentially lethal damage in Chinese hamster cells exposed to X-rays alone or combined with various chemicals (pyruvate, novobiocin, lactate, nalidixic acid, 3-aminobenzamide). For these particular cases, it is concluded that the recovery process itself is not damaged and the inhibition of the recovery is entirely due to the enhanced yield of the irreversibly damaged cells.

• 한국자원리싸이클링학회:학술대회논문집
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• 한국자원리싸이클링학회 2003년도 추계정기총회 및 국제심포지엄
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• pp.39-43
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• 2003

• 임상간호연구
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• 제18권2호
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• pp.196-204
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• 2012

Purpose: This study was aimed to compare the effects of lemon ice and water ice on decreasing thirst of the patients with nasal surgery. Methods: A nonequivalent control group non-synchronized design was used for the study. The level of thirst and oral assessment were measured. A total of 60 subjects was recruited; 30 subjects for the experimental group in which lemon ice was provided and the other 30 subjects were in the control group in which on water ice was administered. Results: The scores of thirst were decreased in both lemon ice and water ice group. But it appeared that the score of thirst in the experimental group is significantly lower than that of the control group. Moreover, the score of the assessment of the patient's oral cavity was also significantly improved in the experimental group than that of the control group. Conclusion: The lemon ice seems an effective and easy-to-apply intervention in reducing thirst and mouth dryness over water ice in nursing practice.

• 대한한방내과학회지
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• 제30권4호
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• pp.719-731
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• 2009

Objectives : Stroke is the most common disabling neurological disease of adult life. The treatment and rehabilitation of stroke patients is an important and challenging area in the field of medicine. In Korea, a lot of stroke patients are treated using oriental medicine and there have been reports on their functional recovery. The aim of this study was to prove the therapeutic effect of oriental medicine on ischemic stroke. We also tried to identify characteristics of patients whose functional recovery was prominent and studied whether or not the use of fluids, anticoagulants, antiplatelets and neuroprotective agents increased the functional recovery of patients. Methods : We studied 794 patients within 2 weeks after first attack of ischemic stroke who were admitted to Kyung-Hee Oriental Medical Center from 1999 to 2000. Their maximum admission period was 60 days. Results : Motor power grade, NIHSS and MBI scores of patients improved during hospitalization significantly. Factors affecting functional recovery were admission period, motor power grade, NIHSS and MBI at admission. Age, waist-hip ratio and HDL cholesterol also affected functional recovery of patients. Whether or not fluids, anticoagulants, antiplatelets and neuroprotective agents were administered had nothing to do with functional recovery. Conclusion : Oriental medicine is effective for treatment and rehabilitation of ischemic stroke patients. When we manage stroke, we have to consider some important factors.

• Journal of Korean Neurosurgical Society
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• 제42권1호
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• pp.1-5
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• 2007

Objective : We studied whether frontal skull base fracture has an impact on the occurrence and recovery of anosmia and/or ageusia following frontal traumatic brain injury (TBI). Methods : Between May 2003 and April 2005, 102 consecutive patients who had hemorrhage or contusion on the frontal lobe base were conservatively treated. Relevant clinical and radiographic data were collected, and assessment of impaired smell and taste sensation were also surveyed up to at least 12 months post-injury. Results : Among 102 patients, anosmia was noted in 22 (21.6%), of whom 10 had ageusia at a mean 4.4 days after trauma. Bilateral frontal lobe injuries were noted in 20 of 22 patients with anosmia and in all 10 patients with ageusia. Frontal skull base fracture was noted in 41 patients, of whom 9 (21.4%) had anosmia and 4 (9.5%) had ageusia. There was no statistical difference in the occurrence of anosmia and ageusia between patients with or without fracture. Of the 22 patients with anosmia, recovery from anosmia occurred in nine (40.9%) at the interval of 6 to 24 months after trauma, of whom six had frontal skull base fracture and three were not associated with fracture. Recovery of anosmia was significantly higher in patients without fracture than those with fracture (p<0.05). Recovery from ageusia occurred in only two of 10 patients at the interval of 18 to 20 months after trauma and was not eminent in patients without fracture. Conclusion : One should be alert and seek possibile occurrence of the anosmia and/or ageusia following frontal TBI. It is suggested that recovery is quite less likely if such patients have fractures on the frontal base, and these patients should wait for at least 6 to 18 months to anticipate such recovery if there is no injury to the central olfactory structures.

• 디지털융복합연구
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• 제13권1호
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• pp.163-176
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• 2015

공적불평행동에서 회사에 대한 직접 불평을 하고, 배상을 요구하는 경우가 빈번하게 나타나고 있는 현 상황에서 콜센터의 대응은 매우 중요한 시점이다. 본 연구의 목적은 콜센터의 서비스품질차원과 세부요인을 찾아내고, 서비스품질차원이 서비스회복, 고객충성도와 어떠한 관련성이 있는지를 연구하는 것이다. 불만족을 경험한 조사대상자 139명을 대상으로 콜센타 서비스품질과 고객충성도 관계성을 검증하기 위해서 가설과 연구모형을 설정하였다. 가설 검증 결과 3개의 콜센타 상담원 서비스 품질과 서비스 회복에 정에 영향을 미치는 것으로 나타났다. 서비스회복은 고객충성도에 정에 영향을 미치는 것으로 나타났다. 결과품질은 상담후의 고객한테 남는 결과물로서 고객의 입장에서 보면 콜센터 이용의 궁극적인 목적이라고 할 수 있으며, 조사 결과 콜센터 서비스품질 세 가지 차원 중 서비스회복에 미치는 영향력이 가장 큰 것으로 드러났다. 서비스회복과 고객충성도 간의 관계에서 서비스회복은 고객충성도에 유의한 영향을 미치는 것으로 나타났다. 콜센터에서는 서비스회복을 도모하고 고객의 고객만족도 및 충성도를 높이기 위하여 콜센터 서비스품질의 관리가 필요하다.

• Journal of Photoscience
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• 제9권2호
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• pp.287-289
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• 2002

Planarians show negative phototaxis and have extensive regenerative ability, including the ability to regenerate the brain. Recently the process of regeneration of the planarian brain has been divided into three steps based on the expression of neural markers. In this study, we have analyzed the process of recovery of the light response during head regeneration. Although morphological observations indicated that regeneration of the eyes and optic nerves appeared to be completed by the fourth day, the recovery of the evasion behavior against light was not recovered within 4 days after amputation. Functional recovery of the evasion behavior could be detected starting 5 days after amputation and then gradually recovered. We previously identified genes which are specifically expressed in the brain after the recovery of morphological structures. This characteristic suggested that these genes may be involved in functional recovery of the brain. To investigate the function of these genes, we performed gene knockout analysis using the RNA interference method. The results clearly indicated that these genes are involved in the functional recovery of the visual system.

• 설비공학논문집
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• 제24권3호
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• pp.224-229
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• 2012

The importance of ventilation system is being emphasized by interest of indoor air quality. Especially, heat recovery ventilation system has attracted attention as most effective ventilation plan. Because it can reduce hazardous construction materials, indoor air pollutions, and also can reduce air conditioning energy cost. In heat recovery ventilator, the element core is the most important part. The element core is composed of liner and spacer. And liner and spacer are stacked alternately. On the Liner, heat and humidity transfer are made between supply and exhaust air. And spacer plays a role as a tunnel of exhaust and supply. In this study, we investigated and analyzed the efficiency of a heat recovery ventilator, when the spacer's properties are changed. As a result, difference spacer's properties affect an efficiency of heat recovery ventilator.