• Title/Summary/Keyword: two-level priority

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Priority Setting for Future Core Technologies using the AHP - With Major Fields in Rural Development and Resources - (AHP를 이용한 미래유망기술 투자의 우선순위 설정 - 농촌개발 및 자원분야를 중심으로 -)

  • Cho, Keun-Tae;Kim, Seong-Joon;Kim, Dae-Sik;Cho, Young-Woo;Lee, Jong-In
    • Journal of Korean Society of Rural Planning
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    • v.9 no.3 s.20
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    • pp.41-46
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    • 2003
  • The study was focused on setting priority for future core technologies in rural development and resources using AHP. The technologies were derived by Delphi method. Evaluation criteria for the priority setting were decided as 'technology', 'market oriented', and 'public concerns' by council. The future core technologies were divided as four groups by importance and R&D level. Technologies in upper two groups were considered in the study. Group I had high importance and high R&D level. Group II had high importance and lower R&D level. Questionnaires were given to 9 specialists in agricultural resources. As the results, 'public concerns' was decided as a most important evaluation criterion. The most important technologies are "technology developing for animal feces and urine treatment, and restoration it to farm land" in group I, and "technology developing for agricultural by-products as energy source" in group II.

A Study on the Performance of BITBUS Network as a Field Bus (Field Bus로서의 BITBUS Network에 대한 성능 연구)

  • 성백문;임동민;이황수;은종관
    • Journal of the Korean Institute of Telematics and Electronics
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    • v.26 no.12
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    • pp.1947-1955
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    • 1989
  • With the increasing complexity of cabling at sensory level in process control and manufacturing automation, field buses were introduced to replace the traditional point to point links from each sensor or acruator to its controlling equipments by a single link on which all information is transmitted seriall and multiplexed in time. In this papr, we introduce the BITBUS network as a field bus. For the service discipline of the BITBUS network, two service strategies are proposed to obtain the performance of the network. They are the equal priority cyclic service strategy and the non-equal priority cyclic service strategy. The former assigns equal priority to each node for polling and the latter assumes non-equal priority. The BITBUS network was modeled as a cyclic queueing model and it is analyzed by two methods: the Kuehn's and the Boxma's. Computer simulation was also done for the cyclic queueing model and simulation results were compared with those. Under mathematically non-analyzable environment, only the computer simulation was done. From the simulation result, in order to meet the response time requirement of 5 msec imposed by International Electrotechnical Commission when each node has the average traffic of 5000 messages/sec in manufacturing automation the number of slave nodes should be smaller than 10 at the transmission rate of 2.5 Mbps.

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A Model to Calculate the Optimal Level of the Cognitive Radiotelegraph (무선인지기능 무전기의 적정 재고수준 산정 모형에 관한 연구)

  • Kim, Young-Mook;Choi, Kyung-Hwan;Yoon, Bong-Kyoo
    • Journal of the Korea Institute of Military Science and Technology
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    • v.15 no.4
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    • pp.442-449
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    • 2012
  • Cognitive Radio(CR) is the technology that allocates the frequency by using dynamic spectrum access. We proposed a model to calculate the optimal level of the cognitive radiotelegraph, where secondary users opportunistically share the spectrum with primary users through the spectrum sensing. When secondary user with cognitive radio detects the arrival of a primary user in its current channel, the secondary user moves to the idle channel or be placed in the virtual queue. We assume that the primary users have finite buffers and the population of secondary users is finite. Using a two-dimensional Makov model with preemptive priority queueing, we could derive the blocking and waiting probability as well as the optimal level of cognitive radiotelegraph under a various range of parameter circumstances.

Need Assessment for Home Nursing of Stroke Patients (뇌졸중 환자의 가정간호요구)

  • 강현숙
    • Journal of Korean Academy of Nursing
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    • v.27 no.3
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    • pp.550-562
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    • 1997
  • Since patients with strokes occupy a high priority among patients for home nursing, the development of guidelines for such nursing is required and the needs of these patients should be reflected in the guidelines. Therefore, this study was done to identify the content and levels of home nursing for patients with strokes and to utilize the data in developing the most effective home nursing guidelines for these patients. The level of A, D. L. and the ability to control upper extremities were measured, and through a questionnaire. the needs for home nursing and related variables were also evaluated. The subjects for the study were 121 patients, 58 inpatients and 63 home care patients who had had a Stroke. Data collection was done from September 1996 to January 1997. The collected data were analyzed utilizing SPSS /PC, and the results are as follows : 1. Home nursing need of inpatients The priority order of home nursing needs for inpatients was : "Training in emergency treatments and how to cope with a stroke"(2.28+1.06), next, "Explanation of diets as limited or recommended", and last, "Nursing care for sleeping Problems". 2. Home nursing need home of patients The priority order of home nursing needs for home patients was : "Care for the paralyzed side" (2, 89+.34), next, "Maintenance of right posture and how to change position" (2.87+.34), and last, "Counseling on sex". 3. Comparison of the levels of home nursing needs between in patients and home patients The results of analyses of home nursing needs according to causes were grouped into seven categories : and t-tests of the seven categories showed significant differences between the two groups in all categories, that is, the level of home nursing needs were significantly higher for home patients than for inpatients in all categories of home nursing. 4. Level of home nursing needs by characteristics The variables that have affected the level of home nursing needs for these patients were sex, profession, level of education, accompanying diseases, paralyzed position. A.D.L. levels and ability levels in coordinating upper extremities. There variables, displayed a reverse correlation with the level of home nursing needs, and the degree of correlation was high. In conclusion, the above results, show there were differences in the priority order of home nursing needs between inpatients and home patients : but the content of home nursing needs wanted by these patients was similar. Meanwhile, the levels of demand for home nursing was exceptionally higher on the part of home patients than inpatients. Although it is realized that nursing guidelines for home nursing needs in all items need to be developed, there is also a necessity to guidelines in accordance with priority orders, and with consideration of the factors that affect the level of home nursing needs. of the factors that affect the level of home nursing needs.

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Strategic Management of the Policy for Seoul City's Hangang Renaissance (네트워크 분석적 의사결정방법(ANP)을 이용한 서울시 한강르네상스 정책의 전략적 관리방안)

  • Cho, Se-Hwan;Jeong, Gwang-Seop;Kim, Sang-Won;Won, Jai-Mu
    • Journal of the Korean Institute of Landscape Architecture
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    • v.39 no.1
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    • pp.1-10
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    • 2011
  • This study was performed for the purpose of reviewing the strategic management direction and ideas of the policy for Seoul City's Hangang Renaissance. In order to accomplish this, levels were established for each step of the policy and the policy priority by level was derived. The policy priority by level was analyzed by a decision making model through the Analytic Network Process(ANP) and the priority would be the standard to judge the order of priority. The analysis results showed that there was not a big difference between the priorities of two basic concepts: restoration and creation. The fourth level, detail plan of the third level, showed priority that development by type for waterside city in case of reorganizing city space and diversification of land utilization, utilization of riverside space in water front town for public and composit purpose, establishment of comprehensive plan on constructions in case of improving the landscape of Hangang and unified design plan rose to important element in case of forming Hangang park with the me. Based on the results of priority analysis, we would like to propose for the direction about the policy on Hangang Renaissance project, the policies forming Hangang Park with theme through unified design plan and reorganizing city space have to be proceed preferentially and connected with other plans.

Hierarchical Image Segmentation Based on HVS Characteristic for Region-Based Very Low Bit Rate Coding (영역기반 초저속 부호화를 위한 인간 시각 체계에 기반한 계층적 영상 분할)

  • Song, Kun-Woen;Park, Young-Sik;Han, Kyu-Phil;Nam, Jae-Yeal;Ha, Yeong-Ho
    • Journal of the Korean Institute of Telematics and Electronics S
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    • v.36S no.1
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    • pp.70-80
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    • 1999
  • In this paper, a new hierarchical image segmentation algorithm based on human visual system(HVS) characteristic is proposed which can efficiently reduce and control transmission information quantity without the degradation of the subjective and objective image quality. It consists of image segmentation based on mathematical morphology and region merging considering HVS characteristic for the pairs of two adjacent regions at each level of the hierarchy. Image segmentation is composed of 3-level hierarchical structure. In the region merging structure of each level, we extract the pairs of two adjacent regions which human vision can't discriminate, and then merge them. The proposed region merging method extracts pairs of two neighbor regions to be merged and performs region merging according to merging priority based on HVS characteristics. The merging priority for each adjacent pair is determined by the proposed merging priority function(MPF). First of all, the highest priority pair is merged. The information control factor is used to regulate the transmission information at each level. The proposed segmentation algorithm can efficiently improve bottleneck problem caused by excessive contour information at region-based very low bit rate coding. And it shows that it is more flexible structure than that of conventional method. In experimental results, though PSNR and the subjective image quality by the proposed algorithm is similar to that of conventional method, the contour information quantity to be transmitted is reduced considerably. Therefore it is an efficient image segmentation algorithm for region-based very low bit rate coding.

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Priority Setting for Future Core Technologies in Biosystems Engineering using the Analytic Hierarchy Process (AHP를 이용한 기계화분야 미래유망기술의 우선순위 설정)

  • 이종인;김만수;조근태;김재한
    • Journal of Biosystems Engineering
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    • v.29 no.2
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    • pp.187-194
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    • 2004
  • The study focused on setting priority among the future core technologies that were derived by Delphi in agricultural management & information using analytic hierarchy process(AHP). Items for setting priority were decided as ‘technology’, ‘market’, and ‘public concerns’by council. The future core technologies were divided into four parts by importance and R&D level. Technologies which consisted of upper two parts having higher importance were considered in the study. Questionnaires were given to 9 specialists in biosystems engineering. As the results, ‘market’ was decided as a most important item. The most important technologies were ‘Developing technology and system of post harvest processing for higher quality rice’ in group I, and ‘Developing sensor technology to evaluate quality and safety for agricultural products’ in group II.

A Study on the Priority Ranking Algorithm for Bridge Management at Network Level (Network Level을 고려한 교량의 우선순위 산정 알고리즘에 관한 연구)

  • Kim Kwang-Soo;Kim Hyeong-Yeol;Park Sun-Kyu
    • Journal of the Korea Concrete Institute
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    • v.17 no.3 s.87
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    • pp.323-328
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    • 2005
  • Bridge structures are properly designed in accordance with the design specifications with required safety margin. However, due to the heavy vehicle traffic and environmental attacks, bridge often requires repairs and the deteriorated one should be replaced or rehabilitated. In this paper, a prior ranking algorithm is proposed to assist a decision making process in bridge management at network level. Based on the literature survey for the existing studuies, two important factors which affect the decision making procedure for bridge management at network level are identified. These factors are implemented into the algorithm as a load carrying capacity function and traffic function, respectively.

Feasibility Study on Environment-friendly Project to Improve Habitability in National Rental Apartment - focused on Gwangju City - (국민임대주택 주거환경 개선을 위한 친환경사업의 타당성 분석 - 광주광역시를 대상으로 -)

  • Park, Hyeon-Ku;Lee, Hyun-Chul
    • Journal of the Korean housing association
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    • v.20 no.5
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    • pp.23-30
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    • 2009
  • In case of national rental apartment, habitability is generally evaluated low comparing with typical apartments. So, researches and investment are required to increase the residential environment. In this point of view, present study aims to suggest the basic data for improvement of homeless masses' dwelling level through economic feasibility analysis. Firstly national rental apartment, which habitability is considered to be low in the point of environment-friendly, welfare, and convenience, is chosen as objective. Secondly environment-friendly project items including project flow were set up, and then basic model was formed to evaluate economic feasibility through priority survey to residents. In result, priority for two items among six different proposals were higher than the others. This result could be useful when trying to increase the dwelling level of national rental apartment being planned to construct in future.

Estimation of Rebate Level for Energy Efficiency Programs Using Optimization Technique (최적화 기법을 이용한 에너지 효율 프로그램의 지원금 수준 산정)

  • Park, Jong-Jin;So, Chol-Ho;Kim, Jin-O
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.57 no.3
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    • pp.369-374
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    • 2008
  • This paper presents the evaluation procedures and the estimation method for the estimation of optimal rebate level for EE(Energy Efficiency) programs. The penetration amount of each appliance is estimated by applying price function to preferred diffusion model resulted from model compatibility test. To estimate the optimal rebate level, two objective functions which express the maximum energy saving and operation benefit are introduced and by multi-objective function which can simultaneously consider two objective functions the optimal rebate level of each appliance is estimated. And then, using the decided rebate level and each penetration amount, the priority order for reasonable investment of each high-efficiency appliance is estimated compared to the results of conventional method. Finally, using a benefit/cost analysis based on California standard practice manual, the economic analysis is implemented for the four perspectives such as participant, ratepayer impact measure, program administrator cost and total resource cost.