• Nuclear Engineering and Technology
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• 제54권2호
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• pp.462-468
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• 2022

The selection and effective utilization of peak-fitting software for conventional gamma-ray spectrum analysis is significant for accurate determination of the mass fraction of elements, particularly in complex peak regions. Majority of the peak-fitting programs can derive similar peak characteristics for singlet peaks, but very few programs can deconvolute multi-peaks in a complex region. The deconvolution of multi-peaks requires special peak-fitting functions, such as left and right-skew distributions. In the this study, 843.76 keV (²⁷Mg) peak area from the complex region (840 keV-850 keV) determined and compared using four different peak-fitting programs, namely, GammaVision, Genie2000, HyperLab, and HyperGam. The 843.76 keV peak interfered with 841.63 keV (^152mEu) and 846.81 keV (⁵⁶Mn). The total Mg concentration was determined through k₀-instrumental neutron activation analysis by applying the isotopic interference correction factor ²⁷Al(n,p)²⁷Mg through the simultaneous determination of Al concentration. HyperLab and HyperGam peak-fitting programs reported consistent peak areas, and resultant concentrations agreed with the certified values of matrix-certified reference materials.

• 정보화정책
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• 제21권2호
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• pp.67-88
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• 2014

이 논문의 연구가설은 스마트기기 활용 교육이 장애인들의 교육 및 학습효과로 스마트기기에 대한 사용능력과 활용 정도의 수준을 높여줄 수 있을 것이라는 것이다. 한국정보화진흥원의 '2012년 정보격차 실태조사 원자료' 중 장애인 데이터를 사용하고, 표본선택편의문제 해결을 위해 Heckman의 2단계 추정법을 활용하였다. 실증 분석결과, 스마트기기 활용 교육을 받은 장애인일 경우 종합적인 스마트기기 사용능력과 활용도 수준이 각각 더 높다는 가설이 채택되었다. 스마트기기 사용능력 및 활용도 측면에서는 스마트기기 활용 교육과 높은 학력 가구소득, 전문사무직, 젊은 연령층 등이 긍정적인 유의미한 영향을 미쳤고, 특히 지체장애에 비해서 시각장애일 경우 스마트기기 사용능력 및 활용도 수준이 낮아지는 것으로 나타났다. 이는 시각장애의 경우 특수 보조기기 및 어플리케이션 없이는 생활이 거의 불가능하므로 지체장애의 경우 두 팔 또는 두 손 전체에 이상이 있는 중증장애가 아닌 한 스마트기기 활용 교육을 통해 스마트기기 사용능력 및 활용도 수준이 높아짐을 알 수 있었다. 본 연구결과는 장애인의 스마트기기 활용도를 높이기 위한 공공 정책 또는 민간 협력의 교육프로그램 진행이 그 목적을 달성하면서 교육의 긍정적인 효과를 보여주면서, 한편 장애유형에 따라 보다 정교한 교육내용과 방법이 필요하다는 것을 보여준다.

• 대한치과기공학회지
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• 제28권1호
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• pp.67-81
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• 2006

This research has been attempt to examine closely factors that high cost and value to overall satisfaction state for dental implant prosthesis, re-utilization intention, inducement intention of the general hospital dental service user and provide basis data necessary to establish competitive general hospital dentistry management strategy. Collected data using own recording way questionnaire from April 17, 2004 to May 15, 2004 choosing 142 people that agree on this research and question of 361 people that dental implant prosthetic treatment finished from March 1, 1999 to March 1, 2004 for this. Major analyzation consequences are as follows : First, general satisfaction, re-utilization intention, inducement intention for implant prosthesis that highly correlation variables are kindness, explanation, medical treatment level and appreciation of the aesthetic. Second, correlation is high relatively between re-utilization intention, inducement intention in the 3 variables such as general satisfaction re-utilization intention, inducement intention. Third, the result of multiple regression analysis showed that most significant effective factors are satisfaction with explanation of dental implant prosthesis between the 3 dependant variables such as general satisfaction, re-utilization intention, inducement intention. In looking into these consequence, how to improve that raise satisfaction about dental implant prosthetic treatment and to establish patient focused care service system for dental implant prosthesis, it is consider that explain enough about implant prosthesis and raise quality of medical examination and treatment level, including satisfied with fabrication of good esthetic dental implant prosthesis.

• 한국IT서비스학회지
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• 제9권1호
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• pp.27-42
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• 2010

Recently, many organizations are actively adopting Enterprise Architecture (EA) as a methodology to manage IT assets and build IT-based business system. However, most existing studies on EA have focused on the adoption stage of EA. Now the research concerning effective management and utilization of EA after adopting EA is keenly required. This study intended to empirically examine how the role of EA operating unit and the EA utilization capability of organizational members impact on EA performance at the post-adoption stage of EA. Based on Resource Based View (RBV), this study proposed the model and the hypotheses describing that the impact of the role of EA operating unit on EA performance is mediated by the EA utilization capability of organizational members. In order to test the hypotheses, the field survey whose respondents were seventy four Korean public agencies which have adopted EA was conducted by means of questionnaire. Data analysis was done with partial least square (PLS), which is a structural equation modeling (SEM) technique that uses a component-based approach to estimation. The results of the empirical analyses showed that the organizational operation ability of EA operating unit significantly influenced EA performance via the EA utilization capability of organizational members, but that EA education and training performed by EA operating unit did not. The results of this study provided a lot of theoretical and practical implications regarding EA management activities at the post-adoption stage of EA to enhance EA performance.

• 한국식품과학회지
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• 제26권4호
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• pp.428-435
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• 1994

쌀전분의 다각적 이용을 위하여 고순도의 멥쌀전분과 찹쌀전분을 Alkali 침지법에 의해 제조하여 각각 드럼 건조기와 압출성형기로 변성전분을 제조한 후 특성을 검토하였다. 청값은 찹쌀전분이 가장 낮았으며 변성 후 L값이 감소하였다. 수분용해지수는 압출성형기로 제조한 변성전분들이 높은 값을 나타내었으며 수분흡수지수는 드럼건조기로 제조한 변성전분들이 높았다. Cold-Water-Solubility는 측정에서는 드럼건조기를 이용한 멥쌀변성전분이 가장 높았다. 각 시료들의 광투과도는 온도 증가에 따라 일정한 양상을 보이지 않았다. 드럼건조기로 제조한 멥쌀변성전분은 전단속도의 증가에 따라 점조성지수가 급격히 증가하였으며 항복응력도 가장 높은 값을 나타내었다. Gel Permeation Chromatography에 의하면 전분을 변성시킴에 따라 분자길이의 절단과 아밀로오스 분해가 일어남을 알 수 있었으며 X-선 간섭도형측정(XRI)에 의한 간섭도형은 피크를 상실한 V도형의 X-선 회절양상을 보임으로서 결정구조가 무정형으로 변화 된 것을 알 수 있었다.

• 디지털융복합연구
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• 제14권12호
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• pp.55-63
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• 2016

FTA와 비즈니스 모델이 상호 얽히고 있는 융복합산업환경에서 최근 FTA는 두 국가의 협정을 넘어 경제권역간의 소위 Mega FTA의 양상을 띠고 있다. 한국은 52개국과 15건의 FTA가 발효됨으로써 미국뿐만 아니라 ASEAN, OECD 회원국 대부분과 모두 FTA 네트워크를 완성하여 이제는 이러한 FTA를 활용하는 것이 한국 경제의 성과를 결정하는 시점에 와 있다. 본 논문은 FTA 활용에 대한 선행연구 검토와 중소기업의 FTA 활용현황과 문제점을 분석하고, FTA 활용도 향상을 위한 중소기업의 원산지관리전문인력 양성방안으로 효과적인 원산지관리 지원체계 구축, FTA 원산지관리 역량강화, FTA 지원제도의 운용 내실화, 원산지관리 담당자의 실무역량 강화 등을 모색함으로써 디지털융복합시대 향후 FTA 활용정책에 시사점을 제공하고자 한다.

• 한국초전도ㆍ저온공학회논문지
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• 제16권2호
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• pp.36-41
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• 2014

Temperature dependence of magnetic moment (m-T) and the magnetization (M-H) at 5 K and 20 K of the in situ processed $MgB_2$ bulk pellets with/without carbon (C) doping were examined. The superconducting critical temperature ($T_c$), the superconducting transition width (${\delta}T$) and the critical current density ($J_c$) were estimated for ten test samples taken from the $MgB_2$ bulk pellets. The reliable m-T characteristics associated with the uniform $MgB_2$ formation were obtained for both $MgB_2$ pellets. The $T_cs$ and ${\delta}Ts$ of all test samples of the undoped $MgB_2$ were the same each other as 37.5 K and 1.5 K, respectively. The $T_cs$ and ${\delta}Ts$ of the C-doped $MgB_2$ were 36.5 K and 2.5 K, respectively. Unlike the m-T characteristics, there existed the difference among the M-H curves of the test samples, which might be caused by the microstructure variation. In spite of the slight $T_c$ decrease, the C doping was effective in enhancing the $J_c$ at 5 K.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2004년도 추계학술대회 논문집
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• pp.1496-1501
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• 2004

Recently, many Korean firms have been adopting 360$^{circ}$ Degree Feedback System with the environmental change in business world. The reason is that the traditional top-down way of personnel evaluation pattern can not but has many limits in this turbulent changing environment. The main purpose of this article is to depict some aspects of 360$^{circ}$ Degree Feedback System including its current status quo, its positive and negative side, and the effective way of its improvement focusing on A firm.

• Journal of Preventive Medicine and Public Health
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• 제28권1호
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• pp.207-223
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• 1995

A new medical delivery system which regulated outpatient department(OPD) use from tertiary care hospitals was adopted in 1989. Under the new system, patients using tertiary care hospital OPD without referral slip from clinics or hospitals could not get any insurance benefit for the services received from the tertiary care hospital. This study was conducted to evaluate the Patient Referral System(PRS) with respect to health care expenditures and utilization. Two data sets were used in this study. One was monthly data set(from January 1986 to December 1992) from the Annual Report of Korea Medical Insurance Corporation(KMIC). The other was monthly joint data set composed of personal data of which 10% were selected randomly with their utilization data of KMIC from January 1988 to December 1992. The data were analyzed by time-series intervention model of SAS-ETS. The results of this study were as follows: 1. There was no statistically significant changes in per capita expenditures following PRS. 2. Utilization episodes per capita was increased statistically significantly after implementation of PRS. The use of clinics and hospitals increased significantly, whereas in tertiary care hospitals the use decreased significantly immediately after implementation of PRS and increased afterwards. 3. Follow-up visits per episode were decreased statistically significantly after implementation of PRS. The decrease of follow-up visits per episode were remarkable in clinics and hospitals, whereas in tertiary care hospitals it was increased significantly after implementation of PRS. 4. There was no statistically significant changes in prescribing days per episode following PRS. Futhermore, clinics and hospitals showed a statistically significant decrease in prescribing days per episode, whereas in tertiary care hospital it showed statistically significant increase after implementation of PRS. 5. Except high income class, the use of tertiary care hospitals showed statistically significant decrease after implementation of PRS. The degree of decrease in the use of tertiary care hospitals was inversely proportional to income. These results suggest that the PRS policy was not efficient because per capita expenditures did not decrease, and was not effective because utilization episodes per capita, follow-up visits per episode. and prescribing days per episode were not predictable and failed to show proper utilization. It was somewhat positive that utilization episodes per capita were decreased temporarily in tertiary care hospitals. And PRS policy was not appropriate because utilization episodes per capita was different among income groups. In conclusion, the PRS should be revised for initial goal attainment of cost containment and proper health care utilization.

• Journal of Biosystems Engineering
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• 제23권5호
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• pp.507-518
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• 1998

세계에서 가장 주된 곡물중의 하나인 벼의 생산은 세계의 주된 폐기물 즉 왕겨와 볏짚을 발생시킨다. 1993년 기준으로 세계 벼 생산량은 5억톤이며 이중 10∼20%를 왕겨로 보고 있다. 국내의 경우 1997년에 5백 45만톤으로 16∼18%를 왕겨로 추정하고 있다. 따라서 농산폐기물의 효율적 이용이 절박한 실정이다.(중략)