• Title/Summary/Keyword: select

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The Design of GF(2m) Parallel Multiplier using data select methodology (데이터 선택방식에 의한 GF(2m)상의 병렬 승산기 설계)

  • Byun, Gi-Young;Choi, Young-Hee;Kim, Heong-Soo
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.28 no.2A
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    • pp.102-109
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    • 2003
  • In this paper, the new multiplicative algorithm using standard basis over GF(2m) is proposed. The multiplicative process is simplified by data select method in proposed algorithm. After multiplicative operation, the terms of degree greater than m can be expressed as a polynomial of standard basis with degree less than m by irreducible polynomial. For circuit implementation of proposed algorithm, we design the circuit using multiplexer and show the example over GF(24). The proposed architectures are regular and simple extension for m. Also, the comparison result show that the proposed architecture is more simple than privious multipliers. Therefore, it well suited for VLSI realization and application other operation circuits.

Selection of Cutting Fluids for Environmentally Clean Machining (청정 절삭 가공을 위한 절삭유제의 선택)

  • Chang, Yoonsang
    • Clean Technology
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    • v.2 no.2
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    • pp.165-175
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    • 1996
  • Cutting fluids in machining process are one of the parameters which have serious effects on the environment. A simple method to accomplish the environmentally clean process is to evaluate the effects of cutting fluids and select one which has the least environmental load. In this research, a process planning to select the best cutting fluid is suggested considering both machinability and environmental effects. The selection criteria and evaluation method named AHP are introduced. The planning process is illustrated with drilling characterized as a heavy-duty and low-speed process. Five standard fluids are compared with respect to five environmental attributes. Compounded cutting oils are superior to water-soluble oils in both machinability and environmental effects.

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A Study on the Selection of Optimal Neural Network for the Prediction of Top Bead Height (표면 비드높이 예측을 위한 최적의 신경회로망 선정에 관한 연구)

  • Son Joon-Sik;Kim In-Ju;Kim Ill-Soo;Jang Kyeung-Cheun;Lee Dong-Gil
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
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    • 2005.05a
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    • pp.66-70
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    • 2005
  • The full automation of welding has not yet been achieved partly because the mathematical model for the process parameters of a given welding task is not fully understood and quantified. Several mathematical models to control welding quality, productivity, microstructure and weld properties in arc welding processes have been studied. However, it is not an easy task to apply them to the various practical situations because the relationship between the process parameters and the bead geometry is non-linear and also they are usually dependent on the specific experimental results. Practically, it is difficult, but important to know how to establish a mathematical model that can predict the result of the actual welding process and how to select the optimum welding condition under a certain constraint. In this paper, an attempt has been made to develop an neural network model to predict the weld top-bead height as a function of key process parameters in the welding. and to compare the developed model and a simple neural network model using two different training algorithms in order to select an optimal neural network model.

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An Ontological Approach to Select R&D Evaluation Metrics (온톨로지 기반 연구개발 평가지표 선정기법)

  • Lee, Hee-Jung
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.33 no.1
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    • pp.80-90
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    • 2010
  • Performance management is very popular in business area and seems to be an exciting topic. Despite significant research efforts and myriads of performance metrics, performance management today as a rigorous approach is still in an immature state and metrics are often selected based on intuitive and heuristic approach. In a R&D sector, the difficulty to select the proper performance metrics is even more increasing due to the natural characteristics of R&D such as unique or domain-specific problems. In this paper, we present a way of presenting R&D performance framework using ontology language. Based on this, the specific metrics can be derived by reusing or inheriting the context in the framework. The proposed ontological framework is formalized using OWL(Ontology Web Language) and metrics selection rules satisfying the characteristics of R&D are represented in SWRL(Semantic Web Rule Language). Actual metrics selection procedure is carried out using JESS rule engine, a plug-in to Prot$\acute{e}$g$\acute{e}$, and illustrated with an example, incorporating a prevalent R&D performance model : TVP(Technology Value Pyramid).

Management and Curricular Components of Pharmacy Residency Programs in Korean Hospitals (우리나라 종합병원에서 실시되고 있는 전문약사과정의 운영 및 교육과정 현황)

  • Park, Sun-Young;Choi, Hye-Yoon;Nagaya-Sriraman, Santoshkumar;Yong, Chul-Soon;Yoo, Bong-Kyu
    • YAKHAK HOEJI
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    • v.53 no.4
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    • pp.165-172
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    • 2009
  • Pharmacy residency program in Korea was first implemented in Seoul National University Hospital in 1983 to train hospital pharmacists regarding theories and practice which were not appropriately educated in the colleges of pharmacy. There are currently seven hospitals operating the program in Korea, and all of those are located in Metropolitan Seoul area. Most hospitals administer examination and interview to select competent pharmacists while some other hospitals select those based on paperwork and interview tests. Although the program contents are mostly similar, some variation were identified between the programs. Title conferred after accomplishment of the program has not been officially accredited by educational authority. In June of 2008, Korean Society of Health-System Pharmacists promulgated an internal regulation as an attempt to standardize the program contents and to encourage efficient management of the program. Since the regulation has now been effective, it is expected that the regulation may help clinical pharmacy education in Korea move toward advanced level.

A Study to Select and Apply Description Elements for the Integrated Search of Archival Objects in University Archives (대학기록관 박물의 통합검색을 위한 기술 요소의 선정 및 적용에 관한 연구)

  • Kim, Min Ji;Kim, Pan Jun
    • Journal of Korean Society of Archives and Records Management
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    • v.14 no.2
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    • pp.7-30
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    • 2014
  • The purpose of this study is to select and apply description elements for the integrated search of archival objects in university archives. For this purpose, the act of public archives management and the research literature were reviewed, and a survey was conducted on related institutions. Moreover, this paper made a comparison by using the archival description of ISAD(G), DACS, RDA, and CCO and referred to the descriptions that are being used at university archives. Based on these analyses, we suggested the description elements for the integrated search of archival objects in university archives and presented the practical application method for it.

A Robust Approach to Automatic Iris Localization

  • Xu, Chengzhe;Ali, Tauseef;Kim, In-Taek
    • Journal of the Optical Society of Korea
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    • v.13 no.1
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    • pp.116-122
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    • 2009
  • In this paper, a robust method is developed to locate the irises of both eyes. The method doesn't put any restrictions on the background. The method is based on the AdaBoost algorithm for face and eye candidate points detection. Candidate points are tuned such that two candidate points are exactly in the centers of the irises. Mean crossing function and convolution template are proposed to filter out candidate points and select the iris pair. The advantage of using this kind of hybrid method is that AdaBoost is robust to different illumination conditions and backgrounds. The tuning step improves the precision of iris localization while the convolution filter and mean crossing function reliably filter out candidate points and select the iris pair. The proposed structure is evaluated on three public databases, Bern, Yale and BioID. Extensive experimental results verified the robustness and accuracy of the proposed method. Using the Bern database, the performance of the proposed algorithm is also compared with some of the existing methods.

Preceding Instruction Decoding Module(PIDM) for Test Performance Enhancement of JTAG based Systems (JTAG 기반 테스트의 성능향상을 위한 PIDM(Preceding Instruction Decoding Module)

  • 윤연상;김승열;권순열;박진섭;김용대;유영갑
    • Journal of the Institute of Electronics Engineers of Korea SD
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    • v.41 no.8
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    • pp.85-92
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    • 2004
  • A design of a preceding instruction decoding module(PIDM) is proposed aiming at performance enhancement of JTAG-based test complying to the IEEE 1149.1 standard. The PIDM minimizes the number of clocks by performing test access port(TAP) instruction decoding process prior to the execution of TAP-controlled test activities. The scheme allows the generation of signals such as test mode select(TMS) inside of a target system. The design employing PIDM demonstrates 15% performance enhancement with simulation of a CORDIC processor and 48% reduction of the TAP-controller's circuit size with respect to the conventional design of a non-PIDM version.

Application of Load by Purpose of Buildings for Application of Seawater District Cooling and Heating System in Jeju Area (제주 지역의 해수열원 지역냉난방 시스템 적용을 위한 건축물 용도별 냉난방 부하량 분석 및 적용방안)

  • Park, Jin-Young;Park, Jea-Hong;Kim, Sam-Uel;Chang, Ki-Chang
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.26 no.2
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    • pp.86-90
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    • 2014
  • It is important to select an optimal capacity for equipment, because the initial cost of new and renewable energy system is more expensive than that of exiting system. An optimal equipment and enhanced rate of operation can be selected, to analyze the cooling and heating load of buildings. In this study, seawater heat pump system in the Jeju area will be applied, by the heat source equipment of district heating. The loads of buildings are analyzed from existing researches, to select optimal capacity of equipment. Also, an optimal rate of building use will be set up, from a combination of buildings.

A Study on the Selection of Underground Construction Method by Risk Analysis (리스크 분석을 통한 지하 구조체 공법 선정에 관한 연구)

  • 윤여완;양극영;홍성휘
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2001.11a
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    • pp.99-117
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    • 2001
  • In the past, The selection of individual method of construction was done by head of construction site or an experienced person very frequently. By doing this, The wrong selection of construction method without exact adjudication of construction site situation lead to increasing of cost and extension of construction term. Finally it will effect all over the construction process. Especially, In case of Underground construction in the beginning, there are a lot of a variable factor and it also effect on the entire construction process and it need rely careful process. The purpose of this study is to present the best suitable methodology fer selection of construction method by considering potential risk of construction method and variables together with external condition for Underground construction. The purpose of this study is to select the most suitable construction method by analysing potential conditions(Construction site situation and Client. Request in designing) To do this, We prepared arrangement rule to arrangement conditions for construction method. And then make Checklist the analyzing construction method. Though above process, To expect the risk of individual construction method using above risk checklist and using Analytic Hierarchy Process among Multiple-Criteria Decision Making, the professional opinions is to be adapted. By doing this, It can lead and select the most suitable considering method considering the data which get from risk density test.

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