• 디지털융복합연구
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• 제15권9호
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• pp.155-165
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• 2017

본 연구는 공공기관에서 공공봉사동기(PSM)이 구성원의 직무만족(JS)과 인지된 직무성과(PJP)에 미치는 직접적인 영향을 확인함과 동시에 간접적으로 종속변수에 영향을 미치는데 기여하는 매개변수의 존재와 효과를 파악하고자 하였다. 특히 매개변수로 활용된 구성원과 조직의 적합성 개념(POF)은 인사제도의 적합성으로 정의함으로써 PSM와 개인 및 조직 효과성 사이에서 인사제도 적합성의 영향력을 파악하였다. 이에 창원시 보건소 구성원을 대상으로 진행된 설문자료를 토대로 정량적 분석을 실시하고 다음과 같은 결과를 확인할 수 있었다. 첫째, 통합된 공무 조직에서의 PSM은 JS와 PJP에 긍정적인 영향을 미치는 것으로 나타났다. 둘째, PSM은 조직구성원의 JS와 PJP를 높여주지만, POF의 역할도 유의미함을 확인하였다. 이를 통해 PSM은 구성원과 조직 간 제도적 적합성을 통해 직무만족과 업무성과의 향상을 기대할 수 있다는 결론을 도출 할 수 있다.

• 복식문화연구
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• 제16권3호
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• pp.502-517
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• 2008

The purpose of the study lies in the measurements of breast shapes and upper body types for the women in their 40's, with the use of 3D measurement system, and in the presentation of brassiere patterns fit for their body types. As for the study method, 3D human body types were analyzed with RapidForm 2006, and the upper-body types and breast shapes were statistically classified through technical statistics analysis, cluster analysis, t-test, variance analysis, and cross analysis. The wearing tests went through the comparison of the brassieres of three makers in the market and the experiment brassieres(first and second) and then the evaluations were made by the subjects, the outer appearance assessment by experts, and 3D measurements. The findings of the study indicated that the evaluation of experiment brassieres was excellent in every item, and he significant difference was found out particularly in the items of pressure, rear center, front center, breast underneath, adequate level by wing, and adequate level by armhole. According to the results of 3D evaluation, experiment brassieres had a highest point in fitness with no physical pressure at the wing part and no overall deviation at the cup art. The pattern comparison showed the differences in the parts of total cup angle, cup circumference length, lower cup height, wing length, and wing angle.

• 한국의료질향상학회지
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• 제15권2호
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• pp.107-120
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• 2009

Background : To estimate fall incidence rate and associated factors in inpatients from a general hospital. Method : The data were collected from 104 fall incident reports developed by the patient safety committee in a general hospital in Seoul from 01 January 2007 to 31 December 2008. Information included general characteristics of patients, factors related to fall, types, places, circumstances and outcomes of fall. Result : The incidence rate of fall, which was 4.4 per 1,000 total discharged patients and 0.5 per 1,000 patient-days, was much lower than that of several hospitals in the United States. The difference may reflect the different incidence reporting system of each hospital. Fall-prone patients were, in general, $$\geq_-$$65 years of age, had an alert mental status, were ambulatory with some assistance, and were dependent on and ambulatory device. High incidence of falls was associated with patients with circulatory disease. The majority of fall events usually occurred in bed or at the bedside in the patient's room, and occurred more often during the night than during the day or evening. Risk factors of fall were use of drugs (antihypertensive or neuropsychiatric drugs) and environmental factors (e.g., overly high bed height, surrounding objects, inadequate fitness shoes and slippery floor). Physical injury occurred in 43.3% of fall events, which typically required diagnosis of injury and treatment such as suturing. Risk factors for repeated falls were use of a neuropsychiatric drug (odds ratio=13.9) and gait disturbance (odds ratio=91.2). Risk factors for fall-related injury were alert mental status (odds ratio=3.3 times more likely to fall than those who were drowsy or in a stupor) and general weakness(odds ratio=3.3 times more likely to fall than those who were not generally weak). Conclusion : Medical and nursing staff should be aware of the fall risk factors of hospitalized patients and should intensively pursue preventative strategies. Development of fall prevention education based on these results is recommended.

• 한국CDE학회논문집
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• 제3권1호
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• pp.57-67
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• 1998

Genetic programming (GP) is an extension of a genetic algoriths paradigm, deals with tree structures representing computer programs as individuals. In recent, there have been many research activities on applications of GP to various engineering problems including system identification, data mining, function approximation, and so forth. However, standard GP suffers from the lack of the estimation techniques for numerical parameters of the GP tree that is an essential element in treating various engineering applications involving real-valued function approximations. Unlike the other research activities, where nonlinear optimization methods are employed, I adopt the use of a weighted linear associative memory for estimation of these parameters under GP algorithm. This approach can significantly reduce computational cost while the reasonable accurate value for parameters can be obtained. Due to the fact that the GP algorithm is likely to fall into a local minimum, the GP algorithm often fails to generate the tree with the desired accuracy. This motivates to devise a group of additive genetic programming trees (GAGPT) which consists of a primary tree and a set of auxiliary trees. The output of the GAGPT is the summation of outputs of the primary tree and all auxiliary trees. The addition of auxiliary trees makes it possible to improve both the teaming and generalization capability of the GAGPT, since the auxiliary tree evolves toward refining the quality of the GAGPT by optimizing its fitness function. The effectiveness of this approach is verified by applying the GAGPT to the estimation of the principal dimensions of bulk cargo ships and engine torque of the passenger car.

• 대한치과보철학회지
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• 제39권3호
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• pp.297-305
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• 2001

Statement of problem. There have been previous studies about instability according to screw material by means of calculating preload in tightening screw or recording of the torque necessary to loosen screw after tightening screw. Purpose. The purpose of this study was to evaluate screw joint stability through the analysis of fitness at the mating thread surfaces between implant and screw after tightening screws made of different materials. Material and methods. In this study, screws were respectively used to secure a cemented abutment to a hexlock implant fixture; teflon coated titanium alloy screw and titanium alloy screw(Steri-Oss), gold-plated gold-palladium alloy screw and titanium alloy screw(Implant Innovation), gold screw and titanium screw(AVANA Dental Implant System). Each abutment screw was secured to the implant with recommended torque value using a digital torque controller. Each screw was again tightened after 10minutes. All samples were cross sectioned with sandpaper and polished. Then samples were evaluated with an scanning electron microscope analysis. Results. In titanium alloy screw, irregular contact and relatively large gap was present at mating thread surface. Also in teflon-coated titanium screw, incomplete seating and only partially contact was present at the mating thread surface. In gold-plated gold-palladium alloy screw, relatively close and tight contact without the presence of large gap was present by existing of gold coating at the mating thread surfaces. In gold alloy screw, relatively small gap between the mating components was seen. Conclusions. This result suggested that gold plated gold-palladium alloy screw and gold alloy screw achieved a greater degree of contact at the mating thread surfaces compared to titanium alloy screw and teflon-coated titanium alloy screw.

• 지능정보연구
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• 제14권3호
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• pp.133-154
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• 2008

데이터 마이닝 분류 문제에서 발생하는 데이터 불균형 문제는 한 범주에 속한 데이터의 수가 다른 범주에 속한 데이터의 수보다 극히 많거나 작은 경우를 말한다. 이러한 불균형 문제를 해결하기 위해 표본추출과 오분류 비용에 근거한 여러 가지 기법들이 제시되었으며, 이들 간의 성능 비교에 대한 연구들도 이루어졌다. 본 논문에서는 기존에 제시된 불균형 문제 해소기법들의 조합적 활용에 대한 타당성에 대해 살펴보고 유전자 알고리즘을 통해 그 결합 비율을 결정하여 더 좋은 성과를 낼 수 있는지에 대해 살펴보도록 한다. 소수 범주에 대한 정확성을 높이기 위해 소수 범주에 대한 F-value에 기초하여 기법들의 결합비율을 결정하고 기존 단일 기법들의 성과와 임의의 비율에 의한 격자표 형태의 결합 성과를 비교하여 결합적 활용의 타당성을 살펴본다. 이를 실증적으로 검토하기 위해서, 일반적으로 데이터 불균형 문제를 해결하기 위해 많이 사용되는 4개의 공개 데이터 집합을 이용하여 타당성 분석을 수행하였다. 분석 결과, 전체적으로 단일 기법들의 결합적 활용이 데이터 불균형 해소에 유용한 것으로 나타났다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2016년도 춘계학술대회
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• pp.453-456
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• 2016

최근 의료 분야에서의 IoT 기술에 대한 관심이 지속적으로 증가하고 있다. 기존 IoT 기술은 주로 만성 질환 환자 관리나 또는 일반인의 신진 대사를 관리하는데 초점이 맞추어져 있으나, 점차 병원에서 집중 관리가 필요한 환자를 대상으로 사용 범위가 확장되고 있다. 따라서 이를 위한 IoT 기술은 보다 정확하고 빠른 정보 전달 및 보안이 요구 된다. 본 논문에서는 의료 기관에서의 IoT 서비스 시나리오를 정의하고, 실제 아두이노 보드, 상용센서, 그리고 웹 기반 IoT 플랫폼을 이용하여 의료 IoT 서비스 플랫폼을 구축했다. 상기 테스트 베드에서의 실험을 통해 제안한 서비스 플랫폼이 의료 정보 전달 지연 및 정확도 측면에서 고려될 수 있음을 보여준다.

• 복식
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• 제55권1호
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• pp.73-85
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• 2005

According to a rise in leisure time thanks to a five-day workweek system, the population of golf tends to rise day by day as exercise not extreme and doing together with nature, and as a sport with high concentration degree, by virtue of people who have an interest in health care and who strive to enjoy a leisure life. This study targeted the whole male and female golfers who reside in the areas of Seoul and Gyeonggi-do and are now playing golf, carried out sampling, and finally used 485 sheets for analyzing data. The study results were as follows; First, as a result of analyzing the whole lifestyle propensity depending on golfers' gender, it was shown that, as a result of making it type by factor, a male golfer was classified into shopping intention, fashion intention, family intention and tradition intention, and a female golfer was divided into shopping intention, fashion intention, family intention and man-and-woman equality intention. Second, as a result of analyzing a characteristic of gender depending on the standard of selecting goods, it showed the difference between genders as for the standard of selecting goods in case of purchasing golfwear, and it showed the difference in style/design, physique fitness, wearing of a famous golfer, convenience of laundry and management, and functionality, and male golfers were shown to select after seeing the clothes which a famous golfer did wear, compared to female golfers. Also, it could be seen that there was difference depending on the standard of selecting goods and the purchasing propensity in case of buying golfwear.

• 치위생과학회지
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• 제14권3호
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• pp.349-355
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• 2014

본 연구는 최근 치의학계 전반적으로 치과용 캐드캠 시스템의 사용이 증가함에 따라 새로운 재료의 개발도 활발히 이루어지고 있는 현실을 반영하였다. 최근 새롭게 개발된 고정성 보철물의 제작 재료인 연질금속재료를 이용하여 제작된 고정성 보철물의 변연 간격을 평가하여 봄으로써 신재료의 임상적 허용 가능성을 변연 간격을 기준으로 가늠하여보고자 하였으며, 나아가서는 치과의사, 치과위생사 및 치과기공사 등 해당 분야 임상가들에게 참고자료를 제시하고자 하였다. 연구 결과에 따르면 연질금속블록을 가공하여 제작된 집단이 전통적인 방식에 의해 제작된 집단보다 우수한 변연간격을 보였으나, 통계적으로 유의하지 않았다. 또한 연질금속블록을 가공하여 제작된 보철물들의 변연 간격이 임상적 허용 수치로 제시되고 있는 $120{\mu}m$를 넘지 않는 것으로 보아 변연 간격을 기준으로 하였을 때 임상적으로 허용이 가능할 것으로 생각된다.

• 디지털융복합연구
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• 제15권2호
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• pp.251-262
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• 2017

본 연구는 Bronfenbrenner의 생태학적 체계이론을 바탕으로 대학생의 정신건강에 영향을 미치는 요인을 구분하고 통합적인 모형 구축과 정신건강 증진을 위한 간호중재 개발의 기틀을 마련하고자 한다. 연구방법은 횡단적 조사연구로 대학생을 대상으로 하였다. 일반적 특성 및 정신건강관련 특성은 SPSS 20.0 프로그램을, 모형의 적합도검증, 가설검증은 Amos 20.0 프로그램을 이용하였다. 연구결과에서 모형의 적합도 지수는 $x^2=614.90$(p=.000), Q값=3.5, GFI=.88, AGFI=.84, NFI=.92, NNFI=.94, CFI=.94, RMR=.02, RMSEA=.08 적합도를 나타내어 연구모형이 가정에 적합한 것으로 나타났다. 연구결과 정신건강에 스트레스가 가장 높은 영향을 미치고 있으며 스트레스 대처 방안과 자아 존중감, 부모의 양육태도가 정신건강에 영향을 미치는 것으로 확인되었다. 대학생의 정신건강을 증진시키기 위해서는 스트레스 관리, 자아존중감 증진, 스트레스 대처 능력 향상을 도모하는 간호중재를 개발하고, 학교현장 및 정신보건 실무에 활용하는 중재가 수행되어야 할 것으로 생각된다.