• 한국농공학회지
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• 제40권3호
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• pp.42-53
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• 1998

About 50 percent of irrigation and drainage facilities in our country are deteriorated as they were constructed over 40 years ago. Worsening the problems in function might be caused by these facilities' constant exposure to the elements. With these reason, efficient maintenance and management of irrigation and drainage facili- ties are required. A computerized system is tailored on the basis of the each characteristics'data of irrigation and drainage facilities. The unified management system to be introduced in this study is a package program consisting of three subprograms. Facility Management(FM) system, the first component, is a relational database system for image processing and registering the characteristics of irrigation and drainage facilities. The objective of this program is to manage the ledger of each facilities and to scan the characteristics of facilities. Telemeter(TM) system, the second component, monitors and processes the data from the sensors statistically. This system is preprogramed for the complete design of TC/TM system. Hydrological Data Management(HDM) system, the third component, executes the hydrological analysis using meteorological data. The unified management system can provide the latest information, such as image data, lists and items of facilities, and items of reforming and rebuilding etc., of the facilities to the manager. At the same time, this system can manage hydrological and meteorological data in realtime.

• Archives of Reconstructive Microsurgery
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• 제24권1호
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• pp.24-27
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• 2015

During flap elevation, most perforators are cut except one or more perforators that are essential to flap survival. However these cutout perforators can cause deterioration of the blood circulation of the flap. To salvage the jeopardized flaps, rebuilding the perforator system is essential for flap survival. In the first case, after flap elevation, the upper abdominal flap margin was severely ischemic. To supply blood to the upper abdominal flaps, we found and used a major perforator underneath the upper abdominal flap which was cut earlier during the elevation, and we performed reanastomosis with ipsilateral deep inferior epigastric artery. Upper abdominal flap ischemic area was limited to a narrow suture area. In the second case, we performed free superficial inferior epigastric artery (SIEA) flap reconstruction. After successful anastomosis of the SIEA and superficial inferior epigastric vein (SIEV) with internal mammary artery and vein, serious venous congestion occurred immediately because of SIEV malfunction. We found the largest perforator vein under the flap, as an alternate way to drain, then connected it with the thoracoacromial vein with a vein graft harvested in the contralateral SIEV. Circulation has improved. In conclusion, perforator system reconstruction is essential in a jeopardized flap salvage.

• 한국정보컨버전스학회:학술대회논문집
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• 한국정보컨버전스학회 2008년도 International conference on information convergence
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• pp.145-150
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• 2008

This thesis explores the problem of reconstructing a three-dimensional(3D) scene given a set of images or image sequences of the scene. It describes efficient methods for the 3D reconstruction of static and dynamic scenes from stereo images, stereo image sequences, and images captured from multiple viewpoints. Novel methods for image-based and volumetric modelling approaches to 3D reconstruction are presented, with an emphasis on the development of efficient algorithm which produce high quality and accurate reconstructions. For image-based 3D reconstruction a novel energy minimisation scheme, Iterated Dynamic Programming, is presented for the efficient computation of strong local minima of discontinuity preserving energyy functions. Coupled with a novel morphological decomposition method and subregioning schemes for the efficient computation of a narrowband matching cost volume. the minimisation framework is applied to solve problems in stereo matching, stereo-temporal reconstruction, motion estimation, 2D image registration and 3D image registration. This thesis establishes Iterated Dynamic Programming as an efficient and effective energy minimisation scheme suitable for computer vision problems which involve finding correspondences across images. For 3D reconstruction from multiple view images with arbitrary camera placement, a novel volumetric modelling technique, Embedded Voxel Colouring, is presented that efficiently embeds all reconstructions of a 3D scene into a single output in a single scan of the volumetric space under exact visibility. An adaptive thresholding framework is also introduced for the computation of the optimal set of thresholds to obtain high quality 3D reconstructions. This thesis establishes the Embedded Voxel Colouring framework as a fast, efficient and effective method for 3D reconstruction from multiple view images.

• Journal of Communications and Networks
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• 제9권4호
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• pp.499-510
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• 2007

Shortest path tree(SPT) construction is essential in high performance routing in an interior network using link state protocols. When some links have new state values, SPTs may be rebuilt, but the total rebuilding of the SPT in a static way for a large computer network is not only computationally expensive, unnecessary modifications can cause routing table instability. This paper presents a new update algorithm, dynamic shortest path tree(DSPT) that is computationally economical and that maintains the unmodified nodes mostly from an old SPT to a new SPT. The proposed algorithm reduces redundancy using a dynamic update approach where an edge becomes the significant edge when it is extracted from a built edge list Q. The average number of significant edges are identified through probability analysis based on an arbitrary tree structure. An update derived from significant edges is more efficient because the DSPT algorithm neglect most other redundant edges that do not participate in the construction of a new SPT. Our complexity analysis and experimental results show that DSPT is faster than other known methods. It can also be extended to solve the SPT updating problem in a graph with negative weight edges.

• 한국비블리아학회지
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• 제14권2호
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• pp.5-12
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• 2003

지식기반사회에 적합한 창의적$\cdot$자율적 인재양성을 위해 학생들의 책 읽기 습관 함양과 탐구 중심의 수업방법 개선이 필요하게 되었으며, 제7차 교육과정의 시행에 따라 수행평가, 재량활동$\cdot$특별활동 등을 지원하기 위한 기본시설로서 학교도서관의 중요성이 부각되었다. 이에 따라 '학교도서관 활성화 종합방안'을 수립하게 되었는데 그 주요내용은 열악한 학교도서관 환경을 개선하기 위한 시설, 장서, 재정, 인력운영 계획과 함께 학교도서관이 교수-학습활동을 실질적으로 지원할 수 있도록 도서관 활용 수업 방안까지 포괄됨으로써 학교도서관이 명실상부하게 학교의 중심부로 자리잡도록 하는 데 주안점을 두고 있다.

• 산업경영시스템학회지
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• 제25권6호
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• pp.59-72
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• 2002

Along with the enlargement of WTO, issues about standardization activity are more and more become concerning object worldwide. Countries launch the work that putting the standardization in order, such as re-establishing their standardization strategy. With the chance of entering WTO, China is promoting the rebuilding of standardization system in order to conform to international standardization system. Thus, in this paper, research make it clear that the variation of circumstance of standardization activity, the importance of the standardization activity, and the international movement, in the meantime, it surveyed the development course of standardization activity and it's present operating system. By this means, it concludes the problems of present operating system and implies the improving scheme. Further more, this paper implies Chinese characteristic standardization system which conform with WTO/TBT and international standardization system. Firstly, through the comprehensive analysis on standardization system, it figures out the main function of relevant organizations in each working stage. Secondly, this paper makes a system model composed of possible three stage, and setup items needs promotion and main target in each stage. Finally, this paper point out the development direction of standardization system, it also implies it's limitation and the later possible research topic in this field.

• 대한간호학회지
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• 제32권4호
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• pp.470-481
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• 2002

This study was carried out to identify and re-establish the professional identity in clinical nurses. Method: From Dec. 1999, for 4 months, the study had been conducted by narrative analysis method based on hermeneutic principles. Subjects were ten nurses with 3-4 years of nursing experience at a university hospital. The data were collected and transcribed through narrative interviews. Result: As a result, the maternal role was identified as the most dominant discourse in which nurses formed their identity. Subjects felt that a maternity is socio-culturally needed in case of nursing. Reconstruction of professional identity consists of 3 stages, Telling, Retelling and Rebuilding. At first, nurses felt confused by skeptism of the profession, interpersonal difficulties, and heavy work loads. However, during the interviews, nurses recognized that nursing is not regarded as significant, effort to make nursing meaningful were small, and there was a lack of understanding others. From this new insight, they re-established a new image of nursing ″through better understanding of others, seeking knowledge, and making positive efforts towards qualified nursing". Conclusion: The above narrative interviews may help nurses reflect and contextually interpret themselves, so that a new identity could be established. Furthermore researchers can obtain new insight from the subjects, while the subjects form a new nursing image from self-reflection.tion.

• 교육시설
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• 제14권3호
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• pp.36-46
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• 2007

This study is based on the need to reform mixed use plan of school facilities considering the characteristics of depressed downtown area. It started with the object to make a plan by deducting function of place required and corresponded to the characteristics of depressed downtown area in Pohang city. As the result of researching present status and the characteristics of six elementary schools in Pohang which the number of student has decreased, it is found that they are required to have change in the region of depressed downtown area which have fallen behind and obsolete school facilities which idle classrooms have increased and to have reformations of a city are characterized by 5 types as poor life environment, lack of cultural facilities as community institution, poor open-space and ecological environment, non-activation of conventional market and contraction of commerce industry by outflow of industry, transfer of administration operation function and etc. and the region of school under researching shows these characteristics. I planed the mixed use program with factors of local community facility, status of school facility use and depressed area's characteristics. Finally, I propose the mixed use plan of school facilities as the strong point of sustainable development which influences on and be influenced by regional characteristics and structure of city.

• 수산경영론집
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• 제35권1호
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• pp.1-22
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• 2004

Since the red grouper stock was initially declared to be overfished by the NMFS in September 2002, the Gulf of Mexico Fishery Management Council must prepare for the red grouper rebuilding plan considering the following alternative management policies: Total Allowable Catch(TAC), 5 - month season closure, 1800 - pound trip limit, and 50 - fathom longline boundary. The first concern the Council has is to evaluate the effects of recommended policies and the second is to analyze the impact of management policies on yellow edge grouper. This is because the fleets harvest red grouper also catch yellowedge grouper, the regulations on red grouper are likely to allow fishing effort to be distributed into yellowedge grouper. Therefore, this study is aimed at evaluating the biological and economic effects of management policies considering simultaneously the impact of red grouper regulations on yellow edge grouper by developing a combined red grouper and yellowedge grouper bioeconomic model. The overall results indicate that management policies for red grouper would adversely affect the yellowedge grouper stock if yellowedge grouper is not protected by its regulations. The TAC policy has the most serious impact on the yellowedge grouper stock, while the 1800 - pound trip limit policy minimizes the reduction in the yellowedge grouper stock. However, the target stock size of red grouper is achieved as well as the largest net present value of returns is gained in the TAC policy.

• Journal of Computational Design and Engineering
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• 제1권1호
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• pp.13-26
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• 2014

Recently, renovations of plant equipment have been more frequent because of the shortened lifespans of the products, and as-built models from large-scale laser-scanned data is expected to streamline rebuilding processes. However, the laser-scanned data of an existing plant has an enormous amount of points, captures intricate objects, and includes a high noise level, so the manual reconstruction of a 3D model is very time-consuming and costly. Among plant equipment, piping systems account for the greatest proportion. Therefore, the purpose of this research was to propose an algorithm which could automatically recognize a piping system from the terrestrial laser-scanned data of plant equipment. The straight portion of pipes, connecting parts, and connection relationship of the piping system can be recognized in this algorithm. Normal-based region growing and cylinder surface fitting can extract all possible locations of pipes, including straight pipes, elbows, and junctions. Tracing the axes of a piping system enables the recognition of the positions of these elements and their connection relationship. Using only point clouds, the recognition algorithm can be performed in a fully automatic way. The algorithm was applied to large-scale scanned data of an oil rig and a chemical plant. Recognition rates of about 86%, 88%, and 71% were achieved straight pipes, elbows, and junctions, respectively.