• 한국지반신소재학회논문집
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• 제18권3호
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• pp.55-67
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• 2019

낙동강 하구 일대 대심도의 연약지반 지역은 시간 의존적인 2차압밀 특성 등의 원인으로 예측보다 실제 과다한 침하가 발생하므로 설계 시점부터 2차압밀 특성을 고려한 예측기법의 필요성이 요구된다. 따라서 본 연구에서는 2,000일 이상의 장기 계측자료 분석과 1차원 이론, 탄소성, 점 탄소성의 수치해석을 수행하여 장기침하 특성을 분석하였다. 그 결과 1차원 이론, 탄소성 해석 모두 성토 높이와 연약층 깊이에 따른 뚜렷한 상관관계를 찾을 수 없었으나, 점 탄소성 해석 방법은 장기계측 결과와 아주 유사하게 침하를 예측하였다. 따라서 연구 대상 지역과 같은 대심도 지역에서 장기 침하 예측 시 점 탄소성 해석을 시공 전에 적용하면 2차압밀 침하 거동 특성을 미리 예측하여 시공 중 발생할 수 있는 공기 지연과 경제적 손실을 사전에 방지할 수 있을 것으로 판단된다.

• 한국노년학
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• 제29권3호
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• pp.1183-1196
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• 2009

본 연구는 장기요양보호 노인특성 및 부양자특성과 부양스트레스의 전반적 경향을 살펴보고, 부양자의 스트레스에 대한 노인 및 부양자특성의 상대적 영향력을 알아보기 위해 실시되었다. 이를 위해 부산, 대구, 경북지역에 거주하는 장기요양보호 3등급 노인의 부양자 105명을 임의 표집하여 질문지법을 사용하여 자료를 수집하였다. 연구결과 부양자의 시간의존 스트레스는 노인의 의존도와 부양자의 건강이 그리고 자기발전스트레스는 노인과 부양자의 관계의 질, 노인의 의존도, 부양자연령, 그리고 부양자건강 순으로 영향을 받는 것으로 나타났다. 또한 신체적 스트레스는 부양자건강과 노인의 의존도 순으로, 그리고 사회적 스트레스는 부양자건강, 관계의 질, 그리고 노인의 의존도 순으로, 마지막으로 정서적 스트레스는 관계의 질에 유의한 영향을 받는 것으로 나타났다. 본 연구결과를 기초로 장기요양보호노인의 부양자 스트레스 감소를 위한 실천적 함의가 논의되었다.

• 사회복지연구
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• 제42권4호
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• pp.365-388
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• 2011

본 연구는 1998~2008년 한국노동패널자료를 이용하여 빈곤진입자의 사회·경제적 특성 및 빈곤진입의 원인과 그 변화 추이를 분석하였다. 분석결과 빈곤진입자들은 장기빈곤층과 비빈곤집단의 중간적인 특성을 보이고 있으며 다수가 빈곤에의 진입과 탈출을 반복하는 집단으로 추정된다. 외환위기 직후 높은 수준을 보이던 빈곤진입율은 점차 안정화되고 있으나, 전통적인 위험집단뿐만 아니라 청년층과 고학력자, 전문직 등에서도 빈곤에 빠지는 사례가 증가하고 있다. 빈곤진입의 가장 중요한 원인은 실직 및 고용불안정으로 빈곤정책 역시 여기에 초점을 두어야 할 것이며, 빈곤진입의 원인과 특성이 향후 빈곤지속기간과 탈출 가능성에 미치는 영향 등 빈곤의 동태적 측면에 대한 후속연구가 필요하다.

• 대한간호학회지
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• 제33권2호
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• pp.275-283
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• 2003

Purpose: This study was to classify elderly in long-term care hospitals for using Resource Utilization Group(RUG-III) and to consider feasibility of payment method based on RUG-III classification system in Korea. Method: This study designed by measuring resident characteristics using the Resident Assessment Instrument-Minimum Data Set(RAI-MDS) and staff time. The data were collected from 382 elderly over sixty-year old, inpatient in the five long-term care hospitals. Staff time was converted into standard time based on the average wage of nurse and aids. Result: The subjects were classified into 4 groups. The group of Clinically Complex was the largest(46.3%), Reduced Physical Function(27.2%), Behavior Problem(17.0%), and Impaired Cognition(9.4%). The average resource use for one resident in terms of care time(nurses, aids) was 183.7 minutes a day. Relative resource use was expressed as a case mix index(CMI) calculated as a proportion of mean resource use. The CMI of Clinically Complex group was the largest(1.10), and then Reduced Physical Function(0.93), Behavior Problem(0.93), and Impaired Cognition(0.83) followed. The difference of the resource use showed statistical significance between major groups(p<0.0001). Conclusion: The results of this study showed that the RUG-III classification system differentiates resources provided to elderly in long-term care hospitals in Korea.

• 지역사회간호학회지
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• 제19권2호
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• pp.196-204
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• 2008

Purpose: To examine factors affecting long-term care hospital patients' intention of transfer to a nursing home. Method: A questionnaire survey was conducted in Aug. 2007 that included 655 patients from 49 long-term care hospitals. The survey aimed to assess the patients' health status, family status, cost and intention of transfer to a nursing home. Institutional characteristics were analyzed from the nationwide database of Health Insurance Review & Assessment Service. The affecting factors were examined by employing chi-square test and logistic regression using SAS 8.2. Result: Of the subjects, 32.4% had intention of transfer to a nursing home. The intention of transfer to a nursing home was affected by moderate or severe pain, living together with the primary carer, high cost uncovered by insurance, and recognition of nursing home. Conclusion; For appropriate service utilization. a higher level of care is needed to satisfy patients at nursing homes and a balanced fee schedule is needed between long term care hospitals and nursing homes. It is desirable to encourage transfer to a nursing home at which nurses support patients and their families by giving information, coordination, and to make efforts to establish a reference system.

• Ocean and Polar Research
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• 제25권spc3호
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• pp.385-392
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• 2003

A new type of soft ground breakwater was recently developed, which does not need ground improvement because of light weight and structural characteristics. The various studies about consolidation settlements and lateral behavior of proposed soft ground breakwater have been conducted. But, the systematic investigations on the construction performance and long-term settlements of new type breakwater has not been accomplished. In this study, construction simulation of soft ground breakwater with soil box model test and experiments of the long-term wave loaded breakwater were performed. The results of test shows that it is possible to compensate differential settlements by dead loading and/or suction pressure, and to reduce the consolidation settlements by preloading method. It was also found that the vertical and lateral displacements of long-term wave loaded breakwater were negligible.

• 대한간호학회지
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• 제34권2호
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• pp.278-289
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• 2004

Purpose: The purpose of this study was to classify the elderly in long-term care facilities using the Resource Utilization Group(RUG-III) and to examine the feasibility of a payment method based on the RUG-III classification system in Korea. Method: This study measured resident characteristics using a Resident Assessment Instrument-Minimum Data Set(RAI-MDS) and staff time. Data was collected from 530 elderly residents over sixty, residing in long-term care facilities. Resource use for individual patients was measured by a wage-weighted sum of staff time and the total time spent with the patient by nurses, aides, and physiotherapists. Result: The subjects were classified into 4 groups out of 7 major groups. The group of Clinically Complex was the largest (46.3%), and then Reduced Physical Function(27.2%), Behavior Problems (17.0%), and Impaired Cognition (9.4%) followed. Homogeneity of the RUG-III groups was examined by total coefficient of variation of resource use. The results showed homogeneity of resource use within RUG-III groups. Also, the difference in resource use among RUG major groups was statistically significant (p<0.001), and it also showed a hierarchy pattern as resource use increases in the same RUG group with an increase of severity levels(ADL). Conclusion: The results of this study showed that the RUG-Ill classification system differentiates resources provided to elderly in long-term care facilities in Korea.

• Geomechanics and Engineering
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• 제21권2호
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• pp.171-178
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• 2020

Mountainous areas cover more than 70% of Korea. With the rapid increase in tunnel construction, tunnel-collapse incidents and excessive deformation are occurring more frequently. In addition, longer tunnel structures are being constructed, and geologically weaker ground conditions are increasingly being encountered during the construction process. Tunnels constructed under weak ground conditions exhibit long-term deformation behavior that leads to tunnel instability. This study analyzes the behavior of the bottom region of tunnels under geological conditions of long-term deformation. Long-term deformation causes various types of damage, such as cracks and ridges in the packing part of tunnels, as well as cracks and upheavals in the pavement of tunnels. We observed rapid tunnel over-displacement due to the squeezing of a fault rupture zone after the inflow of a large amount of groundwater. Excessive increments in the support member strength resulted in damage to the support and tunnel bottom. In addition, upward infiltration pressure on the tunnel road was found to cause severe pavement damage. Furthermore, smectite (a highly expandable mineral), chlorite, illite, and hematite, were also observed. Soil samples and rock samples containing clay minerals were found to have greater expansibility than general soil samples. Considering these findings, countermeasures against the deformation of tunnel bottoms are required.

• 한국태양에너지학회 논문집
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• 제40권2호
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• pp.11-23
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• 2020

The application of the high-performance insulation materials for buildings seems to be an essential measure for reducing energy use in buildings. Phenolic foam is a readily available insulation material with thermal conductivity of about 0.018 to 0.020 W/(mK). It has the advantage of higher thermal resistance and better fire resistance compared to other conventional building insulation materials. Insulation material used for building envelope is regarded as one of the decisive factors for building's energy load. Furthermore, the degradation of its thermal performance over time increasingly affects the building's energy use demand. Generally, the life span of conventionally built buildings is expected to be more than 50 years, so the long-term performance of insulation materials is critical. This paper aims to evaluate the long-term performance of phenolic form boards through an accelerated aging test. The tests were conducted according to BS EN 13166 and KS M ISO 11561. Based on the results of the accelerated aging test, the thermal performance variation of the material was analyzed, and then its aged value after 25 years was computed. Also, the characteristics of the phenolic foam board's long-term performance were also examined based on the standard testing methods adopted.

• 한국치위생학회지
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• 제15권2호
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• pp.245-251
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• 2015

Objectives: The purpose of this study is to evaluate the oral health awareness and oral health care provided by workers in the long-term elderly care facilities. Methods: A self-reported questionnaire was completed by 213 workers in long-term elderly care facilities. The questionnaire consisted of general characteristics, oral health awareness, oral health behavior, oral health knowledge, oral health care professionals, oral health care, oral health care improvement, and denture care. Except the incomplete answers, 200 data were analyzed by the statistical software of SPSS WIN 18.0. Results: Highly educated people tended to have higher oral health awareness. The workers in the facility maintained the oral health care but they suggested that dental professionals are needed. Conclusions: It is necessary to suggest the oral health care management by dental professionals.