• 한국지리정보학회지
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• 제13권4호
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• pp.67-77
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• 2010

석유화학산업의 성장으로 석유화학물의 수송량이 증가하였다. 이는 위험물 사고건수의 증가를 초래하였다. 위험물 사고의 70% 이상이 수송 중 발생하며, 경로선택과정에서 수송경로의 선택에 따라 피해규모를 줄일 수 있지만 위험물 수송경로관련 연구는 미비한 실정이다. 본 연구의 목적은 전문가의 의견을 반영한 적정 위험물 수송경로의 선정을 통해 사고 발생시 피해규모를 최소화 하는데 있다. 이에 계층분석법(AHP)을 통하여 도출된 가중치를 위험도에 적용하여 최소 위험도 경로를 도출하였다. 그 결과 가중치 적용 경로의 경우 최단경로에 비해 인구위험도는 33.4%인 0.608, 환경위험도는 21.8% 감소한 0.168, 사회위험도는 1521.7%인 0.35가 감소하였다. 가중치 미적용 노선과 가중치 적용 노선을 비교하면, 가중치 적용 노선의 인구위험도는 2.6% 감소하였다. 본 연구를 통해 전문가의 의견을 반영한 가중치의 적용으로 위험도를 감소시키면서 인구피해규모를 최소화 하는 최적경로를 도출할 수 있었다.

• Journal of Acupuncture Research
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• 제33권2호
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• pp.11-20
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• 2016

Objectives : The purpose of this study is to investigate the clinical effectiveness of Korean medical combination treatment for cervical disc herniation. Methods : This is an observational study. 102 patients diagnosed with cervical disc herniation by MRI (Magnetic Resonance Imaging) were investigated from January, 2015 through to December, 2015 at Daejeon Jaseng Hospital of Korean Medicine. They were sorted according to the distribution of sex, age, causing factor, the period of disease, admission day and pain area. All patients were treated with acupuncture, Chuna treatment, and herbal therapy and physical therapy during the admission period. After treatment, NRS (Numeric Rating Scale), NDI (Neck Disability Index) and EQ-5D were assessed to evaluate the treatment efficacy. Results : There were more females than Males with a ratio of 1 : 1.37, the age of fifty was the most with 35.29 %, reason unknown was the most with 72.55 % and the subacute stage was the most with 38.24 %. According to disc herniation types, patients with protruded disc types were the most with 66.67 % and a lesion of C5/6 was the most with 41.18 %. For patients diagnosed with cervical disc herniation, neck and shoulder pain NRS decreased from $6.43{\pm}1.77$ to $3.96{\pm}1.96$(p<0.001) and radiating pain NRS decreased from $5.64{\pm}1.96$ to $3.57{\pm}1.88$ (p<0.001). NDI decreased from $41.72{\pm}14.04$ to $30.84{\pm}15.34$(p<0.001), and the EQ-5D index increased from $0.68{\pm}0.17$ to $0.79{\pm}0.14$(p<0.001) after treating cervical disc patients. Conclusion : Korean medical combination treatment might be effective in decreasing pain and raising the life quality of patients with cervical disc herniation.

• 한국전산구조공학회논문집
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• 제28권2호
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• pp.145-152
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• 2015

본 연구에서는 파라매트릭 모델링 기법을 통해 다양한 대안을 고려할 수 있도록 개발된 StrAuto(이하 전산플랫폼)을 이용하여 감쇠장치에 따른 감쇠비 증가 효과와 풍하중 저감효과를 평가하였다. 비정형 초고층구조물의 수많은 구조시스템 대안 선정을 지원하는 전산플랫폼은 설계자 또는 엔지니어에게 초기 대안을 결정하는데 있어 유용한 도구가 된다. 감쇠장치의 용량 및 추가 요구감쇠비의 크기를 산정하는 과정에서 중요한 원 구조물의 감쇠비에 대한 추정은 풍하중에 대한 실계측 자료를 기반으로 수행된 국내외 관련 연구의 결과를 사용하였다. 감쇠장치는 층간 설치형 수동형 감쇠장치와 질량형 능동형 감쇠장치 두 가지 유형을 고려하였다. 감쇠장치에 의해 추가되는 감쇠비는 FEMA에서 제안한 식을 이용하여 등가 정적 해석을 수행하여 산정하였다. 전산 플랫폼 내부에 감쇠장치의 용량을 최적화하는 알고리즘을 내장함으로써 최적의 감쇠장치 설계안을 자동적으로 도출할 수 있다. 감쇠장치 설치에 따른 물량저감 효과는 풍하중 저감계수로 평가될 수 있으며, 455m 높이의 초고층구조물을 대상으로 제안한 방법의 유효성을 검증하였다. 제안한 방법을 사용하여 비선형 시간이력 해석을 통해 얻어진 지붕층 변위와 층별 전단력을 근사적으로 추정할 수 있음을 확인하였다.

• 한국콘텐츠학회논문지
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• 제20권4호
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• pp.540-552
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• 2020

본 연구는 산림치유를 불교적 관점에서 분석하여 그 효과를 향상시키는데 목적이 있다. 숲은 어떤 종교보다도 불교와 깊은 인연과 밀접한 관계를 맺고 있다. 붓다의 일생은 숲과 나무와 이어져 있으며, 이는 숲의 영성적 본질과 역할에 기인한다. 치유(治癒)란 심신(心身)의 고통문제를 다루는 것으로 불교에서는 실천수행법을 통해서 해결한다. 감각제어에 대한 생각, 탐욕, 좋지 않는 감정 등 망상이 일어나는 현상을 정확하게 이해함으로써 불필요한 자극이나 외부대상을 추구하려는 욕망에서 벗어나게 해준다. 인간은 아름다운 자연경관 속에서 오감(五感)을 통해 감각기관상의 쾌적함과 즐거움을 얻을 수 있으며, 마음의 안정을 찾게 된다. 산림(숲)에 들어가면 오감의 작동으로 제 6 의식(意識)이 망상(妄想)을 자라지 못하도록 하는 좋은 환경들이 숲속에 들어있기 때문이다. 본 연구는 산림이라는 자연 환경적 치유인자와 불교이론에 근거한 효과를 선행연구를 토대로 분석한 예비연구다. 불교가 산림치유에 미치는 치유효과를 극대화할 수 있는지를 고찰한 결과, 기존 산림치유기법과 더불어 활성화에 기여할 수 있음을 확인하였다. 그 효과성 검증은 차후 실험연구 등을 통한 후속연구과제로 남겨두고 본 연구가 산림치유효과의 활성화에 기여할 수 있기를 기대한다.

• 시큐리티연구
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• 제48호
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• pp.235-258
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• 2016

본 연구는 대학의 국가안보 관련학과 신입생을 대상으로 긍정심리학을 활용한 집단지도 프로그램이 심리적 안녕감에 어떠한 영향을 미치는 가에 대하여 알아보고자 실시되었다. 이를 위하여 대학생활을 시작하는 신입생들을 대상으로 최근 10여 년 동안 심리학분야에서 두각을 나타내고 있는 긍정심리학을 바탕으로, 집단지도를 통하여 긍정심리를 증진시키게 되면 학생들의 심리적 안녕감을 높이는데 기여할 수 있는가에 본 연구의 목적을 두고 집단지도 프로그램을 실시하였다. 이를 위하여 국가안보관련 학과의 신입생들 중 남녀 39명 (남 19명, 여 20명)을 선정하고 이 중 집단지도 프로그램을 실시한 실험집단은 19명(남 10명, 여 9명)으로 하였고, 비교집단은 20명 (남 9명, 여 11명)으로 배치하였다. 실험집단은 2개의 소규모 집단 (남학생 집단, 여학생 집단)으로 나누어 각각의 대표자를 선정하고 프로그램을 이끌어 가도록 하였고, 주1회 50분씩 총 10회 차의 집단지도 프로그램을 실시하였다. 본 연구의 결과 긍정심리학을 활용한 집단지도 프로그램은 국가안보 관련학과 대학 신입생에게 심리적 안녕감의 증가에 유의미한 영향을 미치는 것으로 나타났다. 그 하위변인에 대한 프로그램 전과 후의 집단 간의 비교에서는 4가지 하위요인 (자율성, 환경에 대한 통제력, 개인적 성장, 긍정적 대인관계)에서 매우 유의미하게 또는 유의미하게 차이가 있는 것으로 나타났다. 그러나 1가지 하위요인(삶의 목적)에서는 유의미한 차이가 없는 것으로 나타났다.

• 유통과학연구
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• 제14권1호
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• pp.85-91
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• 2016

Purpose - Recently, the importance of rapid change in business models is more and more increasing as the change of information technology environment. Therefore, a variety of business models have emerged. On the other hand, there is no company that can generate revenue. Many enterprises are still maintained while they are changing only their appearance of the business model. Business model is important in e-commerce. However, a lot of researches are targeted only in Web sites. Thus, e-commerce companies do not have the infrastructure for measuring and business models. The purpose of paper is to evaluate factors which are related with the structuring of the e-commerce success. And it proposed a financial items and non-financial items. From the perspectives of administrators and managers, the paper researches the possibility for E-Commerce Evaluation Model as a valuable criteria in measuring business model. Research design, data and methodology - The methods are taken by the classification for the type of business-to-business transactions, transactions subject, and the degree of integration and innovation capabilities. Financial and Non-financial value is used to build E-Commerce Evaluation Model. Evaluation items in Administration's perspective are composed with enhance the effectiveness of the mission, improving efficiency of the administration, and control of costs. Evaluation items in the customer's perspective were measured by customer participation and cooperation with customer Satisfaction. In the case of researching the information system's perspective, three criteria are used such as adequacy of the development process, improvement of the quality of service, and maintenance of standardized information technology. In researching for the ICT competence's perspective, evaluation items were composed of enhanced user capabilities, utilizing new technologies, and empowerment of information workers. Results - In this paper, E-Commerce Evaluation Model with financial and non-financial perspectives shows the possibility to be criteria in the case of measuring business model. Moreover, it gives the positive expectation to be successful criteria. But the research may have ambiguity in its essential concept because it cannot avoid the limitation in selecting evaluation tools from merely the model. It is impossible to exclude the possibility in omitting specific properties which may take place in actual case study. Therefore, In hereafter research, it is necessary to include actual case study research in selecting evaluation tools in order to improve the limit point. Actual measurement items which are derived from actual case study should be subdivided, and it would be more effective to complete the research. Conclusions - In rapid change in business models, there are various kinds of business models. But it is general situation that companies which adopted business models have not brought in revenue. For this reason, E-Commerce Evaluation Model is needed as an important factor for the structuring of the e-commerce success. Although it has the limitation in selecting evaluation tools from model, E-Commerce Evaluation Model proposes the implication for measuring business models as a valuable criteria.

• 대한치과보철학회지
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• 제34권2호
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• pp.266-276
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• 1996

Numerous factors are known to affect the accuracy of elastomeric impression materials. Factor often overlooked is the quality of the bond between putty and wash during corrective reline impression technique. The putty-wash bond strength must be strong enough to over-come the local stress at putty-wash interface. It is not always possible to avoid saliva contamination in making corrective wash impres-sion. And putty preliminary impression material con be used as a template for provisional restoration. Human saliva and the residual monomer of autopolymerizing acrylic resin are thought to affect the bond strength and the failure type. This study examined the effect of contaminants like human saliva, and residual resin monomer on the putty-wash bond strength and the effectiveness of treatment. 1. Of the tested three brands of Vinyl Polysiloxane impession meterial, Express Exhibited the greatest bond strength followed by Eamix and Perfect showed the lowest putty-wah bond strength. 2. Coating the putty substrates with human saliva did not produce decreased failure load in all the breands of Vinyl Polysiloxane impression meterail. 3. Of the three brands of VPS impression material that were exposed to methhylmethacry-late resin(Jet), only the putty-wash bond strength of the Perfect group diminished signifi-cantly. Moreover, all the specimens from group C of Perfect exhibited adhesive failure. 4. Exposing the substrates to ethylmethacrylate resin(SNAP. diminished the putty-wash bond strength significantly. With Perfect and Examix, failure occurred cohesively through the light-body, whereas with Express, failure occurred adhesive-cohesively. 5. Removing approximately 1mm thickness of the contaminated putty interface was the most effective treatment in countering the undesirable effect caused by residual resin monomer. The putty-wash bond strength of the groups that were treated with 1mm even putty reduction was not significantly different from those of control groups. With Perfect and Examix, cleaning the specimens with gauze soaked in 70% isopropyl alcohol increased the putty-wash bond strength, but was not as effective as 1mm even reduction of contaminated putty substrates. With Express, 70% isoproryl alcohol treatment exhibi0ted comparable putty-wash bond strength to that of control group.

• 보건교육건강증진학회지
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• 제18권2호
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• pp.157-168
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• 2001

Currently the oriental medical care services in the health centers is getting popularity because of their unique aspects which western medicine can not cover. This study was conducted to speculate the current status of oriental medical care services in health centers and possibility of how to effectively provide the oriental medical care services(or traditional medical care services) in health centers. For the study, the survey questionnaires were distributed to all 269 health centers and 138(51.3%) of them were collected. Eight of the collected were inadequate for the analysis and 130 of 269 questionnaires were finally chosen for the study. The SPSS/PC WIN 8.0 was used for the statistical analysis. The results are as follows. First, 91 out of 130 sample health centers(70%) are providing oriental medical care services. The results show that the willingness of the directors and the public awareness in community are the most important factors to provide oriental medical care services in health centers. In contrast, the lack of cooperative efforts between western and oriental medical doctors and the lack of government supports are considered as factors that intervene the oriental medical care services in health centers. About 80% of the sample health centers respond that the government supports is needed for oriental medical care services in health centers. Second, it was asked to the directors of 39 health centers which do not provide oriental medical care services regarding their future plan to include the services. About 70% of health centers respond that no plan is available now. They acknowledge that the demand on the services is the most important factor to consider the oriental services as their future medical services. Third, 69.2% of the oriental medical doctors in health centers are public health doctor. 95.6% of the sample health centers have space for the oriental medical care services in their facilities and some health centers provide the services through the private clinics nearby facilities. Finally, the surveyors consider both budgetary constraints and difficulty in recruiting doctors as barriers for the effective oriental medical care services in health centers. Finally, t-test and LSD were employed to find out the difference among several groups. The analysis shows statistically significant difference among groups about their recognition on health care policy, health care system, and effectiveness of oriental medical care services. To be conclude, the study shows the necessity of oriental medical care services in health centers. To do so, the government supports, cooperative efforts between oriental and western medical doctors, and providing job security for doctors should proceed to provide effective oriental medical care services in health centers.

• 한국화재소방학회논문지
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• 제32권2호
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• pp.102-109
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• 2018

본 연구는 국가의 안전을 담당하고 있는 소방공무원들이 직무 수행 중 감내하는 위험유발요인들이 공공서비스동기, 직업소명에 미치는 영향을 규명하고자 하였다. 이는 인적자원의 능력과 역량이 중요시 되는 소방조직에서 소방공무원들이 경험하는 위험유발요인들이 개인의 심리적 자본에 영향을 미쳐 조직의 효과성에 영향을 줄 수 있다는 가정에서 출발하였다. 본 연구를 위하여 경기 및 서울권 소방학교의 교육연수 대상 소방공무원들에게 설문을 실시하였으며, 수집된 자료를 통해 회귀분석과 t-test 분석을 실시하였다. 분석 결과, 소방공무원들이 위험유발요인을 높게 인식할수록, 공공서비스동기, 직업소명의 수준이 높아지는 것으로 나타났다. 또한 평균보다 위험유발요인을 높게 인식하는 소방공무원 집단과 낮게 인식하는 소방공무원 집단의 공공서비스동기와 직업소명의 수준의 차이가 유의한 것으로 밝혀졌다. 이는 위험유발요인이 소방공무원의 공공서비스와 직업소명에 정적인 영향을 미치고 있음을 나타내는 결과로서, 다양한 위험유발요인에 대한 인지필요성 및 소방공무원들이 위험요인들에 대해 인지할 수 있도록 관련 교육과 현장체험 중심의 교육방법을 시사하는 결과라고 할 수 있다.

• Journal of Periodontal and Implant Science
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• 제41권2호
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• pp.73-78
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• 2011

Purpose: For periodontal tissue engineering, it is a primary requisite and a challenge to select the optimum types of cells, properties of scaffold, and growth factor combination to reconstruct a specific tissue in its natural form and with the appropriate function. Owing to fundamental disadvantages associated with using a two-dimensional substrate, several methods of seeding cells into three-dimensional scaffolds have been reported and the authors have asserted its usefulness and effectiveness. In this study, we explore the cell attachment of periodontal ligament fibroblasts on nanohydroxyapatite (n-HA) scaffold using avidin biotin binding system (ABBS). Methods: Human periodontal ligament fibroblasts were isolated from the health tooth extracted for the purpose of orthodontic procedure. HA nanoparticles were prepared and $Ca(NO_3)_2-_4H_2O$ and $(OC_2H_5)_3P$ were selected as precursors of HA sol. The final scaffold was 8 mm in diameter and 3 mm in height disk with porosity value of 81.55%. $1{\times}10^5$ periodontal ligament fibroblasts were applied to each scaffold. The cells were seeded into scaffolds by static, agitating and ABBS seeding method. Results: The number of periodontal ligament fibroblasts attached was greater for ABBS seeding method than for static or agitating method (P<0.05). No meaningful difference has been observed among seeding methods with scanning electron microscopy images. However, increased strength of cell attachment of ABBS could be deduced from the high affinity between avidin and biotin ($Kd=10^{-15}\;M$). Conclusions: The high-affinity ABBS enhances the ability of periodontal ligament fibroblasts to attach to three-dimensionally constructed n-HA scaffold.