• 대한조선학회논문집
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• 제40권4호
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• pp.53-58
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• 2003

Design of the corrugated watertight bulkhead for a bulk carrier is principally determined by the permissible limit of Classification requirements. As the weight of upper and lower stool has considerable portion of the total weight of the transverse bulkhead, optimum design including the stool geometry and size will play an important role on economic shipbuilding. The purpose of this study is focused on the minimization of steel weight using the design variables, which are the shape and the size of the corrugation as well as the upper and lower stools. Discrete variables are used as design variables for the practical design. In this study, the evolution strategies (ES), which can highly improve the possibility of leaching the global minimum point, are selected as an optimization method. Usefulness of this study is verified by comparison with the proven type ship design. As objective function, total weight of the transverse bulkhead including the upper and lower stools is used.

• Journal of Information Technology Applications and Management
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• 제15권4호
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• pp.77-101
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• 2008

The market size of Internet portals has been continuously expanded and also competition has been fierce. For the business success of Internet portals, it is necessary to repeatedly perform a renewal project which improves their services, reflecting more improved or changed strategies. Accordingly, this paper proposes an analysis methodology for performing the renewal project more systematically and effectively. The methodology consists of four phases : establishing improved strategies, analyzing customers, deriving service alternatives, and determining services. The methodology places an emphasis on reflecting effectively customers' standpoints (i.e. customers' needs) and service providers' standpoints (i.e. business strategy) upon service improvement. Furthermore, the methodology includes a specific technique for analyzing the feasibility of services. To demonstrate the practical usefulness of the methodology, a real-life case is illustrated.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2001년도 추계학술대회 논문집
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• pp.187-192
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• 2001

In this paper, a practical method to generate task strategies applicable to charmfulness and high-precision assembly, is proposed. The difficulties in devising reliable assembly strategies result form various forms of uncertainty such as imperfect knowledge on the parts being assembled and functional limitations of the assembly devices. In approach to cope with these problems, the robot is provided with the capability of learning the corrective motion in response to the force signal through iterative task execution. The strategy is realized by adopting a learning algorithm and represented in a binary tree type database. To verify the effectiveness of the proposed algorithm, a series of simulations and experiments are carried out under assimilated real production environments. The results show that the sensory signal-to-robot action mapping can be acquired effectively and, consequently, the assembly task can be performed successfully.

• Journal of Preventive Medicine and Public Health
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• 제50권4호
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• pp.217-227
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• 2017

In terms of years of life lost to premature mortality, cancer imposes the highest burden in Korea. In order to reduce the burden of cancer, the Korean government has implemented cancer control programs aiming to reduce cancer incidence, to increase survival rates, and to decrease cancer mortality. However, these programs may paradoxically increase the cost burden. For examples, a cancer screening program for early detection could bring about over-diagnosis and over-treatment, and supplying medical services in a paternalistic manner could lead to defensive medicine or futile care. As a practical measure to reduce the cost burden of cancer, appropriate cancer care should be established. Ensuring appropriateness requires patient-doctor communication to ensure that utility values are shared and that autonomous decisions are made regarding medical services. Thus, strategies for reducing the cost burden of cancer through ensuring appropriate patient-centered care include introducing value-based medicine, conducting cost-utility studies, and developing patient decision aids.

• Structural Engineering and Mechanics
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• 제46권1호
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• pp.91-110
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• 2013

This paper proposes a novel iterative procedure for the design of planar reinforced concrete structures in which the reinforcement is designed for stresses calculated in a nonlinear finite element analysis. The procedure is intended as an alternative to strut and tie modeling for the design of complex structures like deep beams with openings. Practical reinforcement arrangements are achieved by grouping the reinforcement into user defined horizontal and vertical bands. Two alternative strategies are proposed for designing the reinforcement which are designated A and B. Design constraints are specified in terms of permissible stresses and strains in the reinforcement and strains in the concrete. A case study of a deep beam with an opening is presented to illustrate the method. Comparisons are made between design strategies A and B of which B is shown to be most efficient. The resulting reinforcement weights are also shown to compare favorably with those previously reported in the literature.

• 의학교육논단
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• 제20권2호
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• pp.78-90
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• 2018

Recently, unprofessional behavior by physicians and misconduct by medical students have led to increased public concern over medical professionalism. Many studies have been conducted to explore strategies that reinforce professionalism education and prevent misconduct in medical students. However, most studies focused on defining the medical professionalism and its conceptual components. In this study, we conducted a conceptual analysis based on the literature review to categorize issues of unprofessional behavior, and identified doctors' indifference to self and others as the reason for the unprofessional behavior. In this regard, self-reflection provides a practical tool to overcome such indifference. We suggest 'education and evaluation based on self-reflection and reflective practices' as the effective strategies to enhance the professionalism in medical students.

• Communications for Statistical Applications and Methods
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• 제13권1호
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• pp.61-72
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• 2006

When using the well-known variance estimator of Sen (1953) and Yates and Grundy (1953) in inclusion probability proportional to size sampling, we often encounter the problems due to the calculation of the joint probabilities. Sarndal (1996) and Knottnerus (2003) proposed alternative strategies for variance estimation to avoid those problems in the traditional method. We discuss some of practical issues that arise when they are used. Also, we describe the traditional strategy using a sampling procedure available in a statistical software. It would be one of the attractive choices for design-based variance estimation.

• Journal of Community Nutrition
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• 제5권4호
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• pp.218-229
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• 2003

Over the past two decades in the United States, social marketing has become an increasingly popular means of delivering nutrition education for the purpose of eliciting a specific behavior change. This manuscript defines social marketing via traditional marketing concepts and jargon, as well as through a communications strategy that can be used to guide message and campaign development. Research and evaluation strategies necessary to support the development and assessment of campaign promotions, is discussed. Four campaigns implemented in the United States, and one campaign implemented in Indonesia, are discussed in terms of the strategies presented. These campaigns illustrate how this educational technique and an array of assessment approaches have been applied to varied nutritional issues across diverse target audiences and settings. Practical recommendations, as well as discussion of issues regarding the advantages and disadvantages of using social marketing as an educational strategy, campaign sustainability, and philosophical considerations regarding the use of this educational approach, are addressed.

• 대한가정학회지
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• 제32권2호
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• pp.161-178
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• 1994

The purpose of this study were to investigate the current problems of family in adolescents' college entrance examination and to propose the practical alternatives about effective overcoming strategies. To study these objectives two kinds of sample and questionnaire were selected and the data were obtained through 360 parent-child pairs and 802 college preparatory institute students living in Seoul Taejon and kwangju. The major findings were as follow: 1. Educational achievements were affected by adolescents' personal traits as achievement need self-regulation emotional stability and self-concept but parents ' over-aspirations were negative agent for stress coping. 2. Parent-adolescent intimate and self-regulated relationships were positive factors for achievement and educational self-concept. Also adolecsents' educational aspirations were more significantly affected by parents' emotional supports. 3. Family stress were mediated by parent-child conflict so satisfied parent-child relationships can protect serious stressors as examination problems. Especially father-related factors were importantly revealed. In conclusion adolescent family and society must develop coping methods individually and cooperatively through family life education systematic policy and educational reformation.

• 한국정보통신학회논문지
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• 제12권9호
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• pp.1527-1538
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• 2008

기업 경쟁력을 향상시키기 위해 차세대 비즈니스 인텔리전스를 기업에 도입하는 것이 필요하다. 이를 위해 본 연구는 ERP를 도입한 기업들을 대상으로 하여 비즈니스 인텔리전스를 도입하는데 영향을 미치는 요인들을 분석하기 위한 연구모형을 제시했다. 연구모형과 설문조사를 바탕으로 실증분석을 실시함으로써 비즈니스 인텔리전스 도입을 위한 영향요인들을 도출하였다. 설문조사에 대한 분석결과를 설명하고 시사점을 제시하였다.