• 정보처리학회논문지:컴퓨터 및 통신 시스템
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• 제5권1호
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• pp.17-26
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• 2016

IoT는 인간과 사물, 서비스, 이 세 가지 요소에 대해 인간의 명시적 개입 없이 상호 협력으로 센싱, 네트워킹, 정보처리 등 지능적 관계를 형성하는 사물 공간 연결망을 의미하고 현재 AllSeen Alliance, OIC 등과 같은 많은 IoT 그룹에서 IoT를 위한 플랫폼을 출시하고 있다. 자가적응형은 기기가 작동 중에 사람의 의사결정 없이도 가장 나은 대응을 스스로 판단하여 변화에 대처할 수 있도록 구현하는 것을 목표로 하는 것으로 기존 IoT와 IoT 플랫폼에 자가적응형 개념을 적용시켜 볼 필요성이 있다. 따라서 본 논문에서는 기존의 IoT, IoT 플랫폼, 자가적응형 연구와 개발 동향에 대해 살펴보고 IoT와 IoT 플랫폼에 자가적응형 분류체계를 사용한 비교 방식을 제안한다. 또한 이를 활용한 예시로 아직 개발 단계인 OIC의 IoT 플랫폼에서 부족한 자가적응형 요소에 대해 제안한다.

• 전자공학회논문지SC
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• 제47권4호
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• pp.61-68
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• 2010

최첨단 항공 기술을 3차원 공간이 아닌 평면에서 움직이는 자동차에 적용하므로써, 미래자동차의 가장 큰 목표인 "안전성"을 크게 향상시킬 수 있으며, 무인 자율 자동차 개발에 한발 더 다가갈 수 있다. 이것은 디지털 비행제어시스템에서 항공기의 운동 역학 모델이 구현되어, 자율 비행이 가능하도록 제어값이 찾아지므로 이루어진다. 이러한 첨단 항공 기술을 평면상에서 운동하는 자동차에 적용한다면, 무인 항공기와 같이 자율 운행할 수 있도록 제어 될 수 있을 것이다. 본 논문에서는 첨단 항공기의 비행 제어 시스템 모델로 사용되는 하중 제어 모델을 자동차에 적용하여 자동차의 운동 역학을 재해석하고, 하중제어 모델에서 자동차 움직임에 따른 승차감 분석을 한다. 또한 승차감 상향을 위한 해결 방법을 제시한다. 그리고 자동차의 자율 주행, 차선 변경 및 지능형 제동 시스템을 구현하기 위한 하중 제어 모델의 사용 예를 제시한다.

• 영어영문학
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• 제57권2호
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• pp.191-215
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• 2011

This paper aims at investigating Dorothy Wordsworth's later conversation poetry, which has not been the focus of critical discussions on her literary works. While many critics have been emphasizing Dorothy Wordsworth's journals and the tendency of self-effacement in her prose, this paper argues that her later poetry often reveals acute self-consciousness about the circumstances that condition this self-annihilation and searches for a creative way to endorse her own identity. In "Lines Intended for My Niece's Album," she expresses anxiety and uncertainty about the inclusion of her poetic piece in Dora Wordsworth's album, which contains poems by prominent male writers of the contemporary period. "Irregular Verses" presents Dorothy Wordsworth's self-conscious narrative of her girlhood and shows how her own ambition to become a "Poet" has been stifled by external circumstances, including the ideology that instills the idea of proper womanhood into aspiring girls. While these poems examine contemporary gender discourse and the frustrated poethood resulting from it, other poems activate conversations with William Wordsworth's poems and thereby provide a revisionary re-writing of her brother's texts. For example, in "Lines Addressed to Joanna H." Dorothy Wordsworth becomes "a woman addressed who herself addresses others." Her scrupulous approach to her own addressee refuses to subordinate the other to the self's will, and through this revision of "Tintern Abbey," Dorothy Wordsworth vicariously liberates her own self confined in her brother's poems. "Thoughts on My Sick-Bed," which echoes "Tintern Abbey" through borrowed phrases and direct address to William Wordsworth, foregrounds her own poetic identity in the form of the first-person pronoun "I." Dorothy Wordsworth's continual illness during this period of her life paradoxically allows her the time for personal reflection formerly denied to her in her busy life constantly occupied by physical and spiritual labor for others. Instead of earning satisfaction from the subsumption of her creative energy under William Wordsworth's poetical endeavor, Dorothy Wordsworth finally starts to affirm her own poetic identity that can properly express her inner vision and artistic talent. Although this final affirmation remains largely incomplete due to her later mental collapse bordering on madness, it powerfully conveys the hidden literary aspiration of the formerly frustrated female poet.

• 대한임베디드공학회논문지
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• 제19권1호
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• pp.9-17
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• 2024

It is widely recognized that for 3D human pose estimation (HPE), dataset acquisition is expensive and the effectiveness of augmentation techniques of conventional visual recognition tasks is limited. We address these difficulties by presenting a simple but effective method that augments input images in terms of viewpoints when training a 3D human pose estimation (HPE) model. Our intuition is that meaningful variants of the input images for HPE could be obtained by viewing a human instance in the images from an arbitrary viewpoint different from that in the original images. The core idea is to synthesize new images that have self-occlusion and thus are difficult to predict at different viewpoints even with the same pose of the original example. We incorporate this idea into the training procedure of the 3D HPE model as an augmentation stage of the input samples. We show that a strategy for augmenting the synthesized example should be carefully designed in terms of the frequency of performing the augmentation and the selection of viewpoints for synthesizing the samples. To this end, we propose a new metric to measure the prediction difficulty of input images for 3D HPE in terms of the distance between corresponding keypoints on both sides of a human body. Extensive exploration of the space of augmentation probability choices and example selection according to the proposed distance metric leads to a performance gain of up to 6.2% on Human3.6M, the well-known pose estimation dataset.

• Structural Engineering and Mechanics
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• 제4권2호
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• pp.125-138
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• 1996

This paper deals with the application of certain active and passive control mechanisms to control the dynamic response of a steel jacket platform due to wave-induced forces. The forces are estimated using the nonlinear Morison equation which provides nonlinear self-excited hydrodynamic forces. The influence of these forces on the response of a structure without and with vibration control mechanisms is demonstrated using a steel jacket platform as a simple example.

• 한국수학교육학회지시리즈B:순수및응용수학
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• 제17권3호
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• pp.205-209
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• 2010

We introduce the concept of semi-compatible and weak-compatible in $\cal{M}$-fuzzy metric space, and prove some fixed point theorem for four self maps satisfying some conditions in $\cal{M}$-fuzzy metric space.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제13권2호
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• pp.147-153
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• 2013

Previously, Park et al. (2005) defined an intuitionistic fuzzy metric space and studied several fixed-point theories in this space. This paper provides definitions and describe the properties of type(${\beta}$) compatible mappings, and prove some common fixed points for four self-mappings that are compatible with type(${\beta}$) in an intuitionistic fuzzy metric space. This paper also presents an example of a common fixed point that satisfies the conditions of Theorem 4.1 in an intuitionistic fuzzy metric space.

• 전력전자학회:학술대회논문집
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• 전력전자학회 1998년도 Proceedings ICPE 98 1998 International Conference on Power Electronics
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• pp.592-594
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• 1998

In order to analysis high frequency interference conduction in transformer, this paper constructs a equivalent network based on P.I. Fergested transformers physical model. A method of calculating self and mutual leakage inductance of windings sections is presented and a calculating example is given.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2002년도 가을 학술발표회 논문집
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• pp.271-278
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• 2002

Structural optimization using improved higer-order convex approximation is proposed in this paper. The proposed method is a generalization of the convex approximation method. The order of the approximation function for each constraint is automatically adjusted in the optimization process. And also the order of each design variable is differently adjusted. This self-adjusted capability makes the approximate constraint values conservative enough to maintain the optimum design point of the approximate problem in feasible region. The efficiency of proposed algorithm, compared with conventional algorithm is successfully demonstrated in the Three-bar Truss example.

• 호남수학학술지
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• 제35권2호
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• pp.109-117
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• 2013

In the present paper, we utilize the notion of converse commuting mappings due to L$\ddot{u}$ [On common fixed points for converse commuting self-maps on a metric spaces, Acta. Anal. Funct. Appl. 4(3) (2002), 226-228] and prove a common fixed point theorem in Menger space using an implicit relation. We also give an illustrative example to support our main result.