• 대한예방한의학회지
• /
• 제18권3호
• /
• pp.23-39
• /
• 2014

Objective : This review aims at analyzing Complementary and Alternative Medicine (CAM) therapies, using for oral health to know current use of CAM in dental area by analyzing randomized controlled clinical trials (RCTs). Method : We searched the following 6 electronic databases until 1 July 2014. : Pubmed, Medline, Embase, Allied and Complementary Medicine Database(AMED), Cumulative Index to Nursing and Allied Health Literature(CINAHL), the Cochrane Library. We included parallel RCTs and cross-over RCTs that assessed the efficacy of CAM regardless of blinding and language. Results : A total of 154 RCT articles were included. There were 2-arm parallel study design(69.5%), 3-arm parallel study design(20.8%), 4-arm parallel study design(4.5%) and Cross-over design(5.2%). Complementary and alternative medicine RCTs in oral health tend to increase in the early-2000s and in the mid-2010s. In addition, 154 citations were classified according to diseases and interventions that categorized Natural Products studies(68.2%), Mind and Body Practices studies(31.8%). We classified in detail that vitamin and mineral therapies(29.9%), dietary supplements(24.7%), acupuncture(23.3%), Herbal medicine(13.6%), homeopathy (2.6%), energy therapies(2.6%), Massage(1.9%), biofeedback(0.6%), traditional medicine(0.6%). Conclusion : Increasing publications and diverse interventions regarding CAM for oral health is observed by analyzing RCTs from the literature review. Further studies are needed to be performed as systematic reviews to verify their effectiveness and the research to inquire into side effect.

• 품질경영학회지
• /
• 제43권1호
• /
• pp.31-42
• /
• 2015

Purpose: System consists of a lot of units with coherent function. In design phase, various units could be considered with the same function. In this study, we consider the alternative units with the same function and redundancy allocation to maximize system reliability in multi level system. Methods: The redundancy allocation problem with the alternative units in multi level system is formulated. Memetic algorithm(MA) is proposed to optimize the redundancy allocation problem. In addition, the performance of the proposed algorithm is explained by a numerical experiment. Results: MA showed better results than genetic algorithm(GA) and the convergence of the solutions in MA was also faster than GA. In addition, we could know from experiment that system reliability is increased and the chosen unit for redundancy allocation is changed if cost limit is increased. Conclusion: The chose unit for redundancy allocation is changed as resource constraints. It means we need to consider the alternative units in system design. In the future, we need to consider various problem related to redundancy allocation in multi level system and develop the better method to enhance search performance.

• Child Health Nursing Research
• /
• 제16권1호
• /
• pp.84-92
• /
• 2010

Purpose: One of the main reasons why mothers quit breast feeding is that the volume of breast milk is inadequate due to insufficiency in suckling. We believe suckling experience may be a factor affecting nipple confusion. So an alternative feeding method, namely cup, spoon, finger, or nasogastric tube feeding may be needed to prevent nipple confusion. The purpose of this study was to construct a predictive model for demand for alternative feeding education by nurses. Methods: A descriptive design with structured self-report questionnaires was used for this study. Data from 175 nurses working in hospitals in Busan were collected between April 1 and 15, 2009. Data were analyzed by decision tree method, one of the data mining techniques using SAS 9.1 and Enterprise Miner 4.3 program. Results: Of the nurses, 81.1% demanded alternative feeding education and 5 factors showed that most of them expressed intention to pay, desire to know about alternative feeding, age, and learning experience. From these results, the derived model is considered appropriative for explaining and predicting demand for alternative feeding education. Conclusion: This confirms that knowledge and compliance in alternative breast feeding for newborn babies should be correct and any inaccuracies or insufficient information should be supplemented.

• Computers and Concrete
• /
• 제14권4호
• /
• pp.445-462
• /
• 2014

To solve structural optimization problems, it is necessary to integrate a structural analysis package and an optimization package. There have been many packages that can be employed to analyze reinforced concrete plane frames. However, because most structural analysis packages suffer from closeness of systems, it is very difficult to integrate them with optimization packages. To overcome the difficulty, we proposed a possible alternative, DAMDO, which integrates Design, Analysis, Modeling, Definition, and Optimization phases into an integration environment as follows. (1) Design: first generate many possible structural design alternatives. Each design alternative consists of many design variables X. (2) Analysis: employ the structural analysis software to analyze all structural design alternatives to obtain their internal forces and displacements. They are the response variables Y. (3) Modeling: employ artificial neural networks to build the models Y=f(X) to obtain the relationship functions between the design variables X and the response variables Y. (4) Definition: employ the design variables X and the response variables Y to define the objective function and constraint functions. (5) Optimization: employ the optimization software to solve the optimization problem consisting of the objective function and the constraint functions to produce the optimum design variables. The RC frame optimization problem was examined to evaluate the DAMDO approach, and the empirical results showed that it can be solved by the approach.

• 한국문헌정보학회지
• /
• 제54권3호
• /
• pp.41-69
• /
• 2020

이 연구의 목적은 이용자 선호도 및 관심분야 정보 수집을 위한 웹 기반의 프로파일링 모델을 활용하여 이용자 선호도 기반의 대체자료 추천 시스템의 개발과 정보 추천 모델의 핵심이 되는 도서자동분류엔진을 설계하고 시범 구축하는 것이다. 이용자 선호도 기반의 대체자료 선정 방법론을 개발하기 위해 국가대체자료공유시스템인 DREAM의 이용자 대체자료 이용 내역을 분석하여 KDC의 10개 주제 분야별 대체자료에 대한 이용자 선호도를 조사하였다. 이용 내역 데이터의 표제 정보를 분석하여 주제 분야별로 그리고 조사대상 기간별로 관심 키워드를 도출하였으며, 도출된 키워드를 주제 분야별로 순위화하였다. 주제별과 기간별로 순위화된 키워드는 이용자 선호도를 나타내는 것으로 출판된 도서 가운데 대체자료 제작 대상을 선정하는데 활용할 수 있다. 또한 이용자 선호도 기반의 대체자료 선정을 위하여 국립장애인도서관의 내부 데이터뿐만 아니라 타 도서관이나 다양한 유관 기관의 서비스 및 이용 내역을 반영하기 위한 연계방안을 제안하였다.

• 한국산학기술학회논문지
• /
• 제11권11호
• /
• pp.4395-4403
• /
• 2010

본 연구는 2000년 1월부터 2010년 3월까지 Pubmed에 게재된 논문 중, alternative medicine 으로 검색하여 근거중심 대체의학에 대한 연구 현황을 알아보고자 문헌고찰을 하였다. 682편의 연구 중 대체의학에 관한 임상연구는 19개였으며 연구전체 대상자는 2,573명이었다. 논문분석 결과 RCT(Randomized Controlled Trial) 실험 설계연구가 44%였으며 CCT(Controlled Clinical Trials)가 16%, OD(efficacy studies with either a controlled or an Other than controlled Design) 40%였다. 가장 많은 임상실험이 시행된 중재 방법은 Acupuncture과 Massage 였다. 대상 질병군 분포는 근골격계 및 결합조직의 질환과 관련된 '통증 완화'에 대한 임상연구가 20%, 다음으로 특정 감염성 및 기생충성 질환, 신생물이 각각 15% 순이었다. 근거중심 대체의학 현황을 파악하고자 문헌 고찰한 결과 대체의학을 통한 중재가 질병치료에 효과가 있는지에 대한 과학적 근거를 제시한 임상연구가 부족하다. 대체의학의 품질, 안정성, 유효성 확보를 위해 대체의학에 대한 질 높은 연구필요하며 근거중심 대체의학의 활성화가 필요할 것으로 생각된다.

• Architectural research
• /
• 제16권4호
• /
• pp.175-183
• /
• 2014

Contemporary architecture tends to deconstruct modern architecture based on rationalization just like reductionism and functionalism and secedes from it. It means change from mechanical to organic and ecological view of the world. According to these changes, consideration of a compositive relationship presented variety and complexity in architecture. Thus, the modern speculation based on rationalism cannot provide an alternative interpretation about complicated architectural phenomena. At this point in time, the purpose of this study is to investigate the possibilities of the fractal as an alternative tool of analysis and design in contemporary architecture. In this study, two major aspects are discussed. First, the fractal concepts just like 'fractal dimension', 'box-counting dimension' and 'fractal rhythm' can be applied to analysis in architecture. Second, the fractal formative principles just like 'scaling', 'superimposition trace', 'distortion' and 'repetition' can be applied to design in architecture. Fractal geometry similar to nature's patterned order can provide endless possibilities for analysis and design in architecture. Therefore further study of fractal geometry should be conducted synthetically from now on.

• 한국산업융합학회 논문집
• /
• 제16권2호
• /
• pp.29-33
• /
• 2013

This study has been conducted to propose an optimal design guidance of underfloor air distribution system by examining air pattern and proper exhaust status of floor plenum using CFD (Computational Fluid Dynamics). Simulation shows deficient air pattern and exhaust status at BPG (Bypass Grille) of the current design. As a means to find an alternative design, four cases have been developed and tested. Case 1, 2 and 3 show similar results in comparison to the current design. However, case 4 shows improved air pattern and exhaust status at BPG(Bypass Grille), and has been chosen as the optimal alternative.

• 품질경영학회지
• /
• 제27권2호
• /
• pp.126-142
• /
• 1999

Robust design is an approach to reducing performance variation of quality characteristic values in quality engineering. Taguchi has an idea that mean and variation are handled simultaneously to reduce the expected loss in products and processes. Taguchi parameter design has a great deal of advantages but it also has some disadvantages. The various research efforts aimed at developing alternative methods. In the Taguchi parameter design, the product-array approach using orthogonal arrays is mainly used. However, it often requires an excessive number of experiments. An alternative approach, which is called the combined-array approach, was suggested by Welch et. al. ( 1990) and studied by others. In these studies, only single quality characteristic was considered. In this paper we propose how to simultaneously optimize multiple quality characteristics using desirability function when we used the combined-array approach to assign control and noise factors. An example is illustrated to show the difference between the Taguchi's product-array approach and the combined-array approach.

• 산업공학
• /
• 제14권1호
• /
• pp.20-29
• /
• 2001

This paper presents a concurrent design approach that deals with manufacturing cell formation and cellular layout in Cellular Manufacturing System. Manufacturing cell formation is to group machines into machine cells dedicated to manufacture of part families, and cellular layout problem determines layout of the manufacturing cells within shop and layout of the machines within a cell. In this paper, a concurrent approach for design of machine cell and cellular layout is developed considering manufacturing parameters such as alternative process plans, alternative machines, production volume and processing time of part, and cost per unit time of operation. A mathematical model which minimizes total cost consisting of machine installation cost, machine operating cost, and intercell and intracell movements cost of part is proposed. A hybrid method based on genetic algorithm is proposed to solve the manufacturing cell formation and cellular layout design problem concurrently. The performance of the hybrid method is examined on several problems.