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Multi-Functional Furniture Design in Small Living Space

  • Kim, Hyun-Jeong;Choi, Kyung-Ran;Sung, Yun-Jung
    • Journal of the Korea Furniture Society
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    • v.22 no.3
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    • pp.190-198
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    • 2011
  • This study intended to present a new direction of differentiated and innovative furniture design for small living space overcoming the uniformity of conventional small living. In order to achieve these goals, a new piece of furniture with multi functions useful for such small space has been designed and explained in this study. This new type multi-functional furniture can be utilized as kitchen, dining table, home bar or office stand depending on the user's necessity. In particular, it provides more adaptability to changing life and spatial availabilities for small living space in terms of space division, separation and fusion features. Based on the needs of small living space brought by social changes, the conventional concept of small living space, which divides space by partitions or walls, should be changed into flexible perception of space. Also, this research proposed the features of furniture design for functional shifts in terms of its functional, structural, and systematical aspects. In this respect, space can be regarded as a variable place and the image of space can be differently appreciated by means of shift, functional transition and mobility. That is, small living space can be perceived as kitchen, living space or working space at the same time. In conclusion, the versatile use of limited space can be a solution to the issues related to small living space; the convertible and movable furniture called F4 Island presented in this study can transform such spatially limited space into a space with multiple functions to meet the requirements of its residents.

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Role of Demand Response in Small Power Consumer Market and a Pilot Study (소규모 전력 소비자 대상 수요자원 거래시장의 필요성 및 시범운영 결과 분석)

  • Lee, Eun-jung;Lee, Kyung-eun;Lee, Hye-su;Lee, Hyo-seop;Kim, Eun-cheol;Rhee, Wonjong
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.42 no.4
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    • pp.915-922
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    • 2017
  • Demand Response Market (DR Market) has risen as one of the key solutions to address the growth and fluctuation of electricity consumptions. In Korea, DR market has been in operation since 2014, where the focus has been mainly on large-scale loads. Small-scale DR market, however, is becoming increasingly important because small power consumers' contribution to the national power consumption has been increasing and because small loads tend to show large fluctuations. Furthermore, small-scale DR can improve social awareness on energy issues which can bring additional impacts. In this paper, we provide the findings from a small-scale consumer DR pilot. The pilot was conducted in the summer of 2016 on over 5,000 small-scale users in Korea, and smartphone applications were used in the pilot. The effectiveness of small-scale DR Market is analyzed and addressed, and the results indicate a promising future of small-scale DR Market.

Widespread Occurrence of Small Inversions in the Chloroplast Genomes of Land Plants

  • Kim, Ki-Joong;Lee, Hae-Lim
    • Molecules and Cells
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    • v.19 no.1
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    • pp.104-113
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    • 2005
  • Large inversions are well characterized in the chloroplast genomes of land plants. In contrast, reports of small inversions are rare and involve limited plant groups. In this study, we report the widespread occurrence of small inversions ranging from 5 to 50 bp in fully and partially sequenced chloroplast genomes of both monocots and dicots. We found that small inversions were much more common than large inversions. The small inversions were scattered over the chloroplast genome including the IR, SSC, and LSC regions. Several small inversions were uncovered in chloroplast genomes even though they shared the same overall gene order. The majority of these small inversions were located within 100 bp downstream of the 3' ends of genes. All had inverted repeat sequences, ranging from 11 to 24 bp, at their ends. Such small inversions form stem-loop hairpin structures that usually have the function of stabilizing the corresponding mRNA molecules. Intra-molecular recombination between the inverted sequences in the stem-forming regions are responsible for generating flip-flop orientations of the loops. The presence of two different orientations of the stem-loop in the trnL-F noncoding region of a single species of Jasminum elegans suggests that a short inversion can be generated within a short period of time. Small inversions of non-coding sequences may influence sequence alignment and character interpretation in phylogeny reconstructions, as shown in nine species of Jasminum. Many small inversions may have been generated by parallel or back mutation events during chloroplast genome evolution. Our data indicate that caution is needed when using chloroplast non-coding sequences for phylogenetic analysis.

The Research on Security Cognition and Management Status of Technology Outflow about Small-medium Companies in New IT Environment (신정보화 환경에서 중소기업 기술유출에 대한 인식과 관리 실태에 관한 연구)

  • Kim, Ki Ho;Ha, Kyu Soo
    • Journal of Digital Convergence
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    • v.11 no.11
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    • pp.305-312
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    • 2013
  • This research suggests the security countermeasures for solving technology outflow of small-medium companies in New IT Environment through level comparison of security cognition and security management between small-medium companies and major big companies. According to analysis results, it is poor for small-medium companies' level of security cognition and security management compared with major big companies. Small-medium companies need to manage technology outflow to major big companies' level in New IT Environment. Small-medium companies has started to build New IT Environment recently and it must build the appropriate security system for small-medium companies at the same time. Small-medium company has more problem with budget and proffessionals to maintain the security of technology outflow. Therefore government has to support systematic management for the security of technology outflow to Small-medium companies

A Study on the Improvement of Evaluation Indicators for Small Library Operations (작은도서관 운영평가 지표 개선에 관한 연구)

  • Kim, Bo-il
    • Journal of the Korean Society for Library and Information Science
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    • v.52 no.1
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    • pp.5-34
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    • 2018
  • The small library evaluation index, which was previously developed and is currently in use, needs to be improved because of two major reasons: inefficient allocation of points along with evaluation items and detailed indicators that are different from the actual environment of small libraries; and the lack of value as basic data for preparing policies relevant to small libraries. Therefore, the present study proposed a small library operation evaluation index (draft) that includes not only a quantitative evaluation but also a qualitative evaluation that allows the evaluation of the basic purpose and value of small libraries by reflecting the demands of the small libraries that are being evaluated. The proposed small library operation evaluation index (draft) was made to be an evaluation for self-inspection that enables small libraries to autonomously conduct operation evaluation and gauge their level by diversifying the evaluation methods and the evaluation scale of detailed indicators.

Predictors of Regional Small and Medium Hospitals Choice among Nursing Students (간호대학생의 지역 중소병원 선택 예측요인)

  • Jung, Hyo-Ju;Chae, Min-Jeong
    • Journal of Convergence for Information Technology
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    • v.9 no.11
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    • pp.55-61
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    • 2019
  • This study was conducted to identify the predictors of the choice of regional small and medium hospitals by identifying the job preference, recognition of small and medium hospitals. For this purpose, data were collected from September 2018 to October 2018 for nursing students attending 4 universities in Gwangju and Jeollanam - do, and total of 476 questionnaires were analyzed using the SPSS / WIN 24.0 program. The results showed that 66.0% of nursing students selected region local small and medium hospitals. The factors influencing the choice of region small and medium hospitals were high school region, nursing school performance and recognition of small and medium hospitals. In order to increase the employment rate of nursing students to the region small and medium hospitals, nursing educators should provide personalized career guidance to students who want to work in small and medium hospitals and hospital personnel should establish various public relations activities and marketing strategies to raise recognition of small and medium hospitals.

Heavy Metal Pollution and Management Direction of Small Arms Firing Ranges (소화기 사격장의 중금속 오염 특성 및 관리방향 제시)

  • Kim, Hong-Hyun;Jeong, Sangjo
    • Journal of the Korea Institute of Military Science and Technology
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    • v.22 no.5
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    • pp.724-734
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    • 2019
  • This study selected a representative small arm firing range and analyzed the distribution of heavy metal pollutants such as Pb, Cu, Zn, etc. For this the concentrations of heavy metals in soils, roots and leaves of plants, and water of the small arm firing range were measured. The concentrations of heavy metals in the effluent were also checked during precipitation. The concentration of lead in the samples collected from the top soil(0-5 cm) and sub soil(5-50 cm) near the target in the small arm firing range exceeded the concern level of the Soil Environment Conservation Act of Korea, but not in other soil samples. Plants that grow in soil heavily contaminated with lead showed a high lead concentration, especially in roots. However, the concentration of lead in effluent from the small arm firing range was less than 0.02 ppm. The concentration of copper and zinc in the small arm firing range did not surpass the concern level of the Soil Environment Conservation Act of Korea. Through this study more accurate information on the distribution of heavy metal pollution in the soil of the small arm firing range was obtained. Based on this research, we can conclude that some facility improvements can reduce the spreading of pollutants in the currently used small arm firing range and contribute to the design and operation of advanced small arm firing ranges.

Designing an Automated Production Information Platform for Small and Medium-sized Businesses (중소기업의 자동화 생산 정보 플랫폼 구축 모델 설계)

  • Jeong, Yoon-Su;Kim, Yong-Tae;Park, Gil-Cheol
    • Journal of Convergence for Information Technology
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    • v.9 no.1
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    • pp.116-122
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    • 2019
  • In recent years, small and medium-sized businesses are rapidly changing to an industrial structure where process/quality/energy data aggregates can be automatically or real-time to achieve global competitiveness. In particular, real-time information analysis produced in the production process of small businesses is evolving into a new process process that analyzes, predicts, prescribes and implements significant performance of small businesses. In this paper, we propose a platform-building model that can transform the automated production information system of small businesses into big data so that they can upgrade data that is generated by small businesses. The proposed model has the capability to support operational efficiency (consulting and training) and strategic decision making of small businesses by utilizing a variety of data on the basic information of products produced by small businesses for data collection by smart SMEs. In addition, the proposed model is characterized by close cooperation between small and medium-sized businesses with different regional characteristics and areas of information sharing and system linkage.

Agile Attitude Control of Small Satellite using 5Nm Small CMG (5Nm급 소형 CMG를 이용한 소형위성 고기동 자세제어)

  • Rhee, Seung-Wu;Seo, Hyun-Ho;Yoon, Hyung-Joo
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.46 no.11
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    • pp.952-960
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    • 2018
  • Recently, lots of remote sensing satellite require agility to collect more images within the limited time frame. To satisfy this kind of mission requirement, high torque actuator such as CMG is an essential element. In this study, 5Nm class small CMG developed by KARI is introduced to implement for an agile small satellite design. One of the singularity escape CMG steering law, Designated Direction Escape (DDE) method, which is a sort of modified version of Singular Direction Avoidance (SDA) method is summarized for its application on the numerical simulation of agile attitude control system design result. The performance of DDE method is demonstrated properly by escaping well known elliptic internal singularity successfully. 5Nm class small CMG cluster in a pyramid type as well as a roof type configuration is utilized to perform the numerical simulation and to demonstrate its agility design result for a small satellite. Simulation result shows the properness of 5Nm small CMG to a small agile satellite system. Also, the simulation result provides some valuable information that is important to CMG hardware design and manufacturing.

Measures to improve mobile communication propagation environment by linking small cells in a small closed environment (소규모 폐쇄 환경에서 스몰 셀을 연계한 이동통신 전파환경 개선방안)

  • YounGjin kim;Beomseok Chae;HyungJin kim
    • Smart Media Journal
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    • v.13 no.1
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    • pp.52-59
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    • 2024
  • This paper proposes a plan to improve the reception radio environment of the mobile terminal and maintain a constant reception electric field by using small cells in a small closed environment. In order to configure an efficient communication infrastructure for small cells, both ends of wireless transmission and reception of an Ethernet-based wireless video recording system are connected using an L2 switch. The small cell connected to the receiving side L2 switch shares the wireless network section of the wireless video recording system and connects to the transmitting side L2 switch. After that, when it is normally linked to FMS, a management system for small cells, through the Internet network, the output of small cells is checked. In order to verify the results, a proposed network is formed on the elevator inside the building with a poor radio wave environment, and the radio wave environment is measured before and after the small cell application in the section where the elevator operates. As a result, the main parameters of the radio wave environment in all sections of the elevator are improved, as well as a constant receiving electric field strength within the moving elevator.