• 대한물리치료과학회지
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• 제4권1호
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• pp.229-242
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• 1997

This study was performed to figure out effects of stroke rehabilitation on education using isokinetic exercise on physical function recovery. It is considered isokinetic exercise will playa primary role in muscle strength, ROM of joint, and body balance recovery for stroke rehabilitation and so far can be used as a basic references to increase the health of all people. The study consisted of 42 stroke patient(21 training group, 21 control group) diagnosed as cerebral hemorrhage from Oriental Rehabilitation Department of Kyung Hee University. Upper extremity and lower extremity exercise was performed in the training group using isokinetic ergometer. The recovery of physical function(muscle strength, ROM of joint, body balance) data between the two groups were compared and ana lysed by paired t-test are as followed. 1. Muscle testing record showed increased in the strength of elbow flexion, knee flexion, knee extension, ankle extension of the training group com paired to control group(p < .05). In the measurement of ROM, however other parts of the body motion showed no significant changes, only shoulder extension of the training group was increased(p < .05). 2. Body balance increase was highly significant in all training group compaired to control group(p<001). Based on these findings, stroke rehabilitation education with isokinetic ergometer showed available effects on recovery of physical function rehabilitation program with isokinetic exercise will play a primary role in the recovery of physical function of stroke or brain injury patients as well as to promote the health of all people.

• 간호행정학회지
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• 제12권1호
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• pp.63-75
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• 2006

Purpose: This study was aimed to specify roles of nurses from the anesthesia and recovery room by analyzing nursing activities as well as anesthesia nursing during surgery. Method: The objects were 12 RNs working in the recovery room of a university hospital located in Incheon. Self-report was performed by measuring stop-watch for five days from May 17th to May 21st in 2004. Research method was designed to record the time and frequency of the nursing activity from anesthesia and recovery room based on nurses' statement and other references for five days. The data were analyzed with descriptive statistics, ANOVA, and t-test via SPSS Win 10.0 program. Result: Nursing activities in anesthesia recovery room were classified into two different characteristics such as direct and indirect nursing activity. The activities consisted of 11 direct nursing areas and 39 nursing activities in anesthesia preparation room. The indirect nursing was classified into 8 nursing areas and 32 nursing activities. The direct nursing was classified into 12 nursing areas and 55 nursing activity. Also, the indirect nursing was classified into 7 nursing areas and 21 nursing activities in recovery room. In terms of prevalence of nursing activities in the anesthesia preparation room, observation and cooperation of anesthesia was the most prevalent activity, drug and eqipment management the second prevalent, and drug administration the third. On the other hand, in the recovery room, the most prevalent activity was vital sign checking and observation, the second most prevalent activity informative activity, and the third body temperature control. Nursing activity time was recorded according to the nursing characteristics. In the anesthesia preparation room, the direct nursing spent for 8092.20 minutes was larger than the indirect nursing spent for 7198.50 minutes. Also, in the recovery room, the direct nursing spent for 2361.16 minutes was larger than the indirect nursing spent for 1134.13 minutes. 4. Nursing activity time was compared to duty shifts. In the anesthesia preparation room, the direct nursing was more prevalent on day shift and the indirect nursing was prevalent on evening shift. However, in the recovery room, both direct and indirect nursing activities were prevalent on day shift. Conclusion: The role of anesthesia and recovery room nurses was analysed according to the time, frequency, and its characteristics.

• 청정기술
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• 제13권4호
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• pp.257-265
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• 2007

반도체 공정에서 배출되는 폐 포토레지스트 스트리퍼(photoresist stripper)의 주성분인 NMP (N-methy-pyrrolodione)와 BDG (Butyldiglyrcol)를 회수하여 재활용할 목적으로 나선형 스핀밴드시스템(spinning band stem)이 장착되어 있는 진공증류장치를 이용하여 실험실적 규모의 증류실험을 수행하였다. 정제된 NMP와 BDG의 순도는 포토레지스트 스트리퍼용 용제 기준 물성치인 순도 99.5% 이상이었고, 수분 1000 ppm 이하, 색도(APHA) 50 이하, 나트륨 성분을 제외한 대부분의 금속성분은 1 ppb 이하로 반도체용 스트리퍼 용액 제조에 재활용할 수 있는 수준임을 확인하였다. NMP와 BDG의 회수을은 PR스트리퍼 폐액 A 타입의 경우 NMP 96%, BDG 53%, B 타입의 경우 NMP 93%, BDG 57%이었다.

• Biomaterials and Biomechanics in Bioengineering
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• 제2권3호
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• pp.159-172
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• 2015

Treatment of polymicrobial infected musculoskeletal defects continues to be a challenge in orthopaedics. This research investigated single and dual-delivery of two antibiotics, vancomycin and amikacin, targeting different classes of microorganism from a biodegradable calcium sulfate-chitosan-nHA microsphere composite scaffold. The addition of chitosan-nHA was included to provide additional structure for cellular attachment and as a secondary drug-loading device. All scaffolds exhibited an initial burst of antibiotics, but groups containing chitosan reduced the burst for amikacin at 1hr by 50%, and vancomycin by 14-25% over the first 2 days. Extended elution was present in groups containing chitosan; amikacin was above MIC ($2-4{\mu}g/mL$, Pseudomonas aeruginosa) for 7-42 days and vancomycin was above MIC ($0.5-1{\mu}g/mL$ Staphylococcus aureus) for 42 days. The antibiotic activity of the eluates was tested against S. aureus and P. aeruginosa. The elution from the dual-loaded scaffold was most effective against S. aureus (bacteriostatic 34 days and bactericidal 27 days), compared to vancomycin-loaded scaffolds (bacteriostatic and bactericidal 14 days). The dual- and amikacin-loaded scaffolds were effective against P. aeruginosa, but eluates exhibited very short antibacterial properties; only 24 hours bacteriostatic and 1-5 hours bactericidal activity. For all groups, vancomycin recovery was near 100% whereas the amikacin recovery was 41%. In conclusion, in the presence of chitosan-nHA microspheres, the dual-antibiotic loaded scaffold was able to sustain an extended vancomycin elution longer than individually loaded scaffolds. The composite scaffold shows promise as a dual-drug delivery system for infected orthopaedic wounds and overcomes some deficits of other dual-delivery systems by extending the antibiotic release.

• 대한인간공학회지
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• 제5권2호
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• pp.3-9
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• 1986

The present paper deals with obtaining the proper application criteria for the control mode, by using computer graphic simulation, in order to recover the error effectively occurring in the practical supervisory contol work of hyman-robot system. In these experiments the opteations by human and by control program are performed as control modes for recovering the error. And then we compare and analyze tow control modes taking task error and task time as performance measures and task difficulty as a variable factor. Consequently as the task difficulty increases, the task error in the operation by hyman tends to be less than in the operation by control program and the task time is superior in the operation by control program. Therefore, we suggest that two control modes should be used jointly for recovering the error and the operation by control program should be applied in major fraction of control and the operation by human in minor fraction of control.

• 대한기계학회논문집B
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• 제23권9호
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• pp.1201-1212
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• 1999

A numerical analysis is performed to predict the thermal response and ablation rate for charring or non-charring material which is designed to be used as thermal protection system (TPS). The numerical program composed of in-depth energy balance equation and the aerotherm chemical equilibrium (ACE) program. The ACE program calculates various thermochemical state from ablation products. The developed numerical program is verified by comparing the reported results from literature. The sensitivity tests for input parameters are performed. The thermal behavior of ablating material is mainly affected by density of ablating material, convective heat transfer coefficient and recovery enthalpy of flow field.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2000년도 추계학술대회논문집
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• pp.389-395
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• 2000

It is usually the contractual responsibility of HRSG(Heat Recovery Steam Generator) supplier to limit combustion turbine exhaust noise at cogeneration sites. Thus, it is necessary to predict the noise level from HRSG at the stage of preliminary design. HRSG is usually composed of inlet duct, main casing, outlet duct, stack. To satisfy the noise limit level, additional equipments are sometimes required - duct shroud, silencer. We develop algorithms for predicting the noise emission from all these equipments of HRSG units. For the convenience of user, we develop the GUI window version program, named NP-HRSG program. To evaluate the accuracy of this program, predicted noise levels from a real HRSG model are compared with measured data. Through this comparison, we observe that the maximum error is just about 3dB.

• 경영과정보연구
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• 제30권2호
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• pp.57-79
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• 2011

본 연구의 목적은 전시컨벤션산업에서 고객이 만족하지 못하는 실패상황이 발생 했을 때 서비스회복을 가능하게 하는 요소들을 규명해보는 것이다. 연구결과, 도출된 특별서비스 중 사교행사, 관광서비스, 동반자 프로그램 등의 별도의 이벤트 요소들은 모두 고객의 기대치 이상의 특별서비스로 평가되었다. 그러나 특별서비스 요소가 컨벤션서비스에서 모든 서비스의 회복요인으로 작용 하지는 못하였으나, 정보제공요인과 종사원 서비스요인에서는 유의한 역할을 하는 것으로 나타났다. 그러므로 정보제공과 종사원서비스를 제외한 컨벤션서비스에서는 특별서비스를 새롭게 개발하는 추가적인 노력이 필요하다. 따라서 본 연구의 결과는 정보제공과 종사원 서비스를 제외한 서비스는 서비스 실패 시 회복을 위해서 특별서비스 요소를 적용할 수 없다는 것과 정보제공과 종사원 서비스의 실패 시에는 특별서비스요소가 회복요소로써 제공될 수 있다는 것을 파악한 것에 의의가 있었으며 특히, 종사원 서비스는 서비스실패 상황 시 추가지원 전략만으로는 회복이 어려우며, 유익한 이벤트들이 추가적으로 제공되어야 한다는 중요한 시사점을 발견할 수 있었다. 또한 전시장 환경과 인프라와 같은 물리적인 변수에 대해서는 이벤트 서비스회복 전략과 고객 지원 절차와 운영 역시 적절한 서비스회복 전략이 될 수 없음을 알 수 있었다. 이것은 고객이 편리한 컨벤션시설과 환경에 거는 기대치가 매우 높다는 것을 잘 알 수 있는 부분이다. 이는 시설과 도로, 교통 등 주위환경적인 부분의 고객의 불만족이 나타났을 때에는 막대한 투자와 시간이 소요되는 서비스품질 부분임으로 정부와 기업체가 함께 고민하며 보완해 나가야 될 것으로 사료된다.

• 한국환경생태학회지
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• 제32권6호
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• pp.667-675
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• 2018

본 연구는 산림치유 프로그램이 대학 교직원의 회복탄력성과 행복감에 미치는 영향을 알아보기 위하여 실시하였다. 실험에 동의한 실험자 14명을 연구대상으로 선정하였으며, 실험집단 7명, 통제집단 7명으로 구분하였다. 실험집단을 대상으로 2015년 10월 27일부터 11월 17일까지 주 1회기 60분씩 총 4회기의 산림치유 프로그램을 충청북도 청주시 소재의 C대학 학교 숲에서 실시하였다. 자료분석은 SPSS 21.0 프로그램을 사용하여 대응표본 t-검정을 통해 프로그램 참가 전과 후의 회복탄력성와 행복감 차이를 살펴보았다. 학교 숲을 이용한 산림치유 프로그램이 대학 교직원의 회복탄력성 증진과 행복감 증진에 효과가 있음을 확인하였다. 연구결과 통제집단은 유의미한 변화가 없었으나, 산림치유 프로그램을 실시한 실험집단의 회복탄력성와 행복감는 유의미하게 증가하였다. 향후 대학 교직원을 대상으로 한 산림치유 프로그램의 효과를 밝히는 기초자료로 활용되기를 기대한다.

• 한국응용과학기술학회지
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• 제41권3호
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• pp.705-720
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• 2024

본 연구는 12주 복합운동 프로그램이 비만 중년 여성의 심혈관계 기능과 심전도 기반의 ST 분절 및 QRS에 미치는 영향을 알아보기 위하여 중년 여성 24명을 무작위 배정하였다. 결과에 대한 분석은 집단 내 및 기간·집단 간 차이 검증을 실시하였다. 심혈관계 기능에서 심근 산소소비량은 실험군에서 안정단계와 운동 중 최고 강도 단계에서 유의한 감소가 나타났으며, 안정 시 집단·기간 간 상호작용 역시 나타났다. 심박수 회복률은 실험군에서 회복기 2분에 유의한 감소가 나타난 반면 대조군에서는 반대로 유의한 증가가 나타났다. 수축기 혈압에서는 실험군이 유의하게 감소한 것으로 나타났으며, 집단·기간 간 상호작용 역시 나타났다. 이완기 혈압은 실험군 대조군 모두 변화가 없었으며, 맥압에서는 회복기 3분 단계에서 실험군에서만 통계적으로 유의한 감소가 나타났다. 심전도의 경우 QRS 높이는 실험군이 안정 시, 회복기 3분, 6분, 9분에서 대부분 유의한 증가를 나타낸 반면 QRS 기간은 실험군 대조군 모두 유의한 차이가 없었으며, ST 분절 높이는 실험군에서 안정 시에 유의하게 증가한 것으로 나타났다. 따라서 본 연구의 결과를 종합해 보면 12주 복합운동 프로그램은 비만 중년여성의 심혈관계 기능과 심전도에서 심실의 수축력 향상과 심근의 허혈을 개선하는데 긍정적인 효과가 있다고 사료된다.