• 한국건축시공학회지
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• 제22권6호
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• pp.689-700
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• 2022

건축물 골조공사에서 먹매김 작업은 건축물 구조부재 요소를 정확한 위치에 시공하기 위해 높은 정밀도가 요구되나, 현재 인력에 의해서 진행되어 작업자의 숙련도에 따라 먹 위치 정확도 및 정밀도가 저하되고, 정보손실 및 오류 발생에 따른 생산성 저하 문제점을 갖는다. 이를 해결하기 위해 전반적인 먹매김 공정의 자동화 및 정보화 기술 도입이 요구되며, 건설로봇을 활용한 먹매김 자동화는 효과적인 수단이 될 수 있다. 이에 본 연구에서는 건축물 골조공사의 먹매김 시공자동화 로봇의 프로토타입을 개발하고 기초성능을 평가하였다. 개발된 로봇은 크게 주행부, 마킹부, 센싱부, 제어부로 구성되었으며, 골조공사 환경을 고려하여 다양한 주행방식과 마킹부 이동 및 회전이 가능하도록 설계되었다. 주행 및 마킹 성능 실험 결과, 주행거리 오차 및 마킹 품질측면에서는 만족할 만한 성능을 보였으나, 일부 주행방식과 마킹 정밀도 측면에서의 개선 필요성이 확인되었다. 본 연구결과를 토대로 개발 장비의 지속적인 개선 및 성능 보완, 전체 먹매김 공정의 자동화 시스템 구축을 진행하고자 한다.

• 지식경영연구
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• 제23권2호
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• pp.193-210
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• 2022

급속한 모바일 기술의 발전과 네트워크 속도 향상은 다양한 서비스 형태로 생활의 편의를 제공하고 있으며 모바일 쇼핑몰에서도 예외는 아니다. 빅데이터를 활용한 맞춤 추천, AI 기반의 특화된 개인화 서비스 등을 활용하여 기업들은 판매촉진에 큰 노력을 하고 있으나, 대다수의 모바일 쇼핑몰에서는 상품에 대한 정보를 담고 있는 상세페이지의 정보 구성은 동일한 레이아웃 형태로 제공되고 있다. 이러한 맥락에서 본 연구는 모바일 상품 상세페이지의 콘텐츠 배열 및 레이아웃이 소비자 성향에 맞게 제공되어야 한다고 판단하여, Higgins의 조절초점이론(Regulatory Focus Theory)을 바탕으로 소비자의 성향을 분류하여 두 가지 레이아웃 배열의 상품 상세페이지를 구성하여 제시하였다. 콘텐츠 레이아웃 배열이 F-shaped 패턴으로 제시되었을 때 정돈감(Organizedness)으로 정보가 인지되고, Z-shaped 패턴으로 제시되었을 때 생생함(Vividness)으로 정보가 인지되어 소비자의 성향에 따라 제품 태도와 구매 의도에 영향을 받는지에 대하여 알아보고자 하였다. 결과적으로 예방초점 성향의 소비자들은 콘텐츠 레이아웃 구성이 통일감 있고 정돈감(Organizedness) 있는 형태의 레이아웃 배열에서, 향상초점 성향의 소비자들은 생생함(Vividness)이 느껴지는 자유로운 레이아웃 배열로 제시되었을 때 제품 태도 및 구매 의도에 긍정적인 영향을 받는 것을 확인하였다.

• 실천공학교육논문지
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• 제15권1호
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• pp.209-221
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• 2023

반도체 제조 공정에서 사용되는 제품의 외관 검사 및 포장 단계에서 정전기에 의해 particle이 제품 자체나 운반용 도구 등에 흡착되는 문제가 발생한다. 본 연구는 실용 트리즈 기법을 활용하여 제품에 particle이 흡착되는 문제를 개선할 수 있는 방법론을 제시한다. 제시한 실용 트리즈 기반의 방법론을 적용하여 문제를 정의하고, 제품 대기 시간으로 인해 발생하는 모순을 도출하였다. 도출된 모순 중 물리적 모순을 설정하고 '공간분리'의 개념을 적용하여 '이오나이저 설치' 및 '작업실 Layout 개선'이라는 해결방안을 도출하였다. 실용 트리즈 적용을 통해 도출한 '이오나이저 설치' 및 '작업실 Layout 개선'을 적용하여 실험한 결과, 제품이 대기하는 시간에서 발생되는 particle 흡착 문제를 해결할 수 있음을 확인하였다. 본 연구를 통해, 제조현장에서 근무하는 작업자, 설비 엔지니어, 기술 엔지니어들이 실용 트리즈 기법을 활용하여 창의적 사고, 발상의 전환을 통해 직면한 문제를 효과적으로 해결하고 혁신적인 기술개발 및 생산성 향상에 기여할 수 있을 것이다.

• 디지털산업정보학회논문지
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• 제17권4호
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• pp.109-120
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• 2021

Despite the growing online exposure of retailes, offline retail channels still outperform online channels in the total retail volume of some countries. There is much interest in the physical layout plans of retail stores to expand sales. Product placement that have a large impact on customer purchasing behavior at offline retailers influences customer movement and sales volume. But in many cases, each retailer relies on unsystematic and autonomous product placement. When multiple products are sold with one purchase, the customer's movement for shopping may be evaluated in terms of customer efficiency and additional impulse purchase. In this paper, the social network is applied to sales data of a retail store and the result is used for evaluation of product placement and customer path. The frequent sales product composition was identified using k-core from sales data in the form of shopping baskets. The location was checked for the identified compositions of products, the spatial variance was measured and the customer's path was identified. With these results, the store arrangement of products was evaluated with appropriate improvement directions. The analysis method of this paper can be an alternative analysis approach for better layout of retail stores.

• 한국농촌건축학회논문집
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• 제17권4호
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• pp.67-74
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• 2015

Due to an inability to accommodate for the rapidly increasing number of printed materials, Korean academic libraries are facing serious space shortage problems. Very few academic institutions have the funds to expand existing libraries or construct new facilities in order to accommodate the influx of printed materials. Despite not having the luxury to create new space, many establishments continue to implement the open access system. Seeing that such a system is only user friendly when used in a spacious facility, the maintenance of the open access system is unreasonable. Only few libraries consider the space efficient closed access system which helps to resolve storage space shortage. In the current state of the problem, improving the efficiency to which books are stored in existing storage areas within a library facility is the only appropriate solution. Enacting methods to improve physical space utilization within a fixed volume library facility will undoubtedly diminish the space shortage issue at hand. In this article, several space efficiency improvement approaches are discussed. Methods of book storage plan re-layout (floor, plan, ceiling, height, bookshelf design), book arrangement possibilities, and the reduction of the physical volume of reserved materials are each examined.

• 한국실내디자인학회논문집
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• 제25권1호
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• pp.124-131
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• 2016

This study focuses on the proposal of the basic data for the design guideline on the coming design, through the comparison analysis of the community facility's layout type inside housing complex, the space configuration and the characteristic of space program for the achievement and improvement of the physical space to cultivate the sense of community. This study investigate interviews with designers, administrators, residents, and site survey. The result of study shows that the community facilities in the public rental apartments have changed to include various programs and to increase the area like the public sales apartments, but there are spacial transformation if the community facilities do not apply the residents characteristic.

• 한국컴퓨터정보학회논문지
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• 제22권9호
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• pp.81-89
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• 2017

The CRP(Container Relocation Problem) algorithms pursuing efficient container relocation of wharf container terminal can not be deterministic because of the large number of layout cases. Therefore, the CRP algorithms should adopt trial and error intuition and experimental heuristic techniques. And because the heuristic can not be best for all individual cases, it is necessary to find metrics which show excellent on average. In this study, we analyze GLAH(Greedy Look-ahead Heuristic) algorithm which is one of the recent researches in detail, and propose a heuristic metrics HOB(sum of the height differences between a badly placed container and the containers prohibited by the badly placed container) to improve the algorithm. The experimental results show that the improved algorithm, GLAH', exerts a stable performance increment of up to 3.8% in our test data, and as the layout size grows, the performance increment gap increases.

• 한국생물정보학회:학술대회논문집
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• 한국생물정보시스템생물학회 2001년도 제2회 생물정보학 국제심포지엄
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• pp.11-35
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• 2001

For the last twenty years fragment assembly in DNA sequencing followed the "overlap - layout - consensus"paradigm that is used in all currently available assembly tools. Although this approach proved to be useful in assembling clones, it faces difficulties in genomic shotgun assembly: the existing algorithms make assembly errors and are often unable to resolve repeats even in prokaryotic genomes. Biologists are well-aware of these errors and are forced to carry additional experiments to verify the assembled contigs. We abandon the classical “overlap - layout - consensus”approach in favor of a new Eulerian Superpath approach that, for the first time, resolves the problem of repeats in fragment assembly. Our main result is the reduction of the fragment assembly to a variation of the classical Eulerian path problem. This reduction opens new possibilities for repeat resolution and allows one to generate error-free solutions of the large-scale fragment assemble problems. The major improvement of EULER over other algorithms is that it resolves all repeats except long perfect repeats that are theoretically impossible to resolve without additional experiments.

• Architectural research
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• 제10권2호
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• pp.1-10
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• 2008

The study is to find possibilities and problems of a small-scale modification on movable storage furniture as an answer to the residents' needs. The study selected one of the renovated housing units at "KYUDOGAKUSHA" as a case study. "KYUDOGAKUSHA" was designed by architect Takeda Goichi in 1926 and was renovated in 2006. The study investigates major two aspects of movable storage furniture, which includes the furniture's layout planning and technical issues of assembling and moving moveable storage furniture. The experimental test result shows that, 1) It is clear that island type of movable storage furniture's layout can facilitate the residents'small-scale modification even though the residents are untrained. 2) To increase the assembling efficiency, the study found that it is necessary to improve the movable storage furniture's casters so that furniture can rotate. Certain moveable furniture which played a role as a connector between other furniture pieces was not able to move vertically and caused a load on other connected furniture; this needed an improvement.

• 대한안전경영과학회지
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• 제12권1호
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• pp.71-81
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• 2010

Today's fierce competition and global economic recession make most of manufacturing companies in the world difficult to gain a profit. In order to survive such a environment and increase competitiveness, manufacturing companies have to continuously eliminate their wasteful factors through an efficient process analysis, improve quality of products, increase the flexibility of manufacturing processes. In this paper, we consider a case study for the Shanghai New Auto which is a subcontractor of MOBIS in China, to improve productivity by using therblig method, one of the motion analysis, to minimize the work-in-process inventories and to shorten the manufacturing cycle times. We also try to relocate the facility layout to increase the efficiency and flexibility of manufacturing processes.