• Title/Summary/Keyword: local average

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GENETICAL STUDIES ON NATIVE CHICKENS IN INDONESIA

  • Yamamoto, Y.;Namikawa, T.;Okada, I.;Nishibori, M.;Mansjoer, S.S.;Martojo, H.
    • Asian-Australasian Journal of Animal Sciences
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    • v.9 no.4
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    • pp.405-410
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    • 1996
  • Phylogenetic analyses were carried out using four Indonesian native chicken breeds; Kampung, Bangkok, Pelung and Kedu. Gene frequencies of four blood group (A, B, D and E) and eight electrophoretic loci (akp, Akp-2, Es-1, Amy-1, Alb, Tf, Pas and Pa-1) were examined. Geographical and breed specific trends in the gene frequencies were not found in the local population of Kampung breed or in four native breeds. The values of average heterozygosity were estimated as 0.35-0.45. Genetic distances among the local populations of Kampung breed and other native breeds were comparatively small. In a cluster analysis, the Bangkok breed and Kampung E population showed distance from another cluster. The coefficient of gene differentiation for local populations of Kampung breed was estimated as 0.099.

The Local Surface Strength Variation of Coated Papers during Printing (인쇄과정에서 코팅 용지의 국부적인 표면강도 변화에 관한 연구)

  • Youn, Jong-Tae
    • Journal of the Korean Graphic Arts Communication Society
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    • v.22 no.2
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    • pp.101-110
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    • 2004
  • The local surface strength variation of coated papers were measured at various speeds on a number of coated paper samples to study the effects of speed and ink tack on coating pick. Coating pick phenomenon is observed in an ink transfer variation curve as a decrease in the slope of the curve. On the other hand, it causes an actual decrease in net ink transfer to paper with an increase in speed. The effect of speed on coating pick depends on ink tack, ink film thickness and surface properties of coating layer formation of paper. A novel device to measure the surface strength can rate the coating paper in a different order. Comparison are made between dry test of coating paper pick and wet coating pick test of printing in IGT printability tester. Coating formulation is the main key to prevent from coating pick. The binder level increases, the coating pick and the slop decrease. The piling on blanket in printing is a problem when the coating pick is occur on a local area rather than average surface strength of coated papers.

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Feasibility study of ground source heat pump system according to the local climate condition (지역 기후 특성에 따른 지열시스템의 도입경제성 차이에 관한 연구)

  • Nam, Yujin
    • KIEAE Journal
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    • v.14 no.4
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    • pp.127-131
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    • 2014
  • The ground source heat pump (GSHP) system is a kind of the temperature differential energy system using relatively stable underground temperature as heat source of space heating and cooling. This system can achieve higher performance of system than it of conventional air source heat pump systems. However, its superiority of the system performance is different according to installation location or local climate, because the system performance depends on the underground condition which is decided by annual average air temperature. In this study, in order to estimate the feasibility of the ground source heat pump system according to the local climate, numerical simulation was conducted using the ground heat transfer model and the surface heat balance model. The case study was conducted in the condition of Seoul, Daejeon, and Busan, In the result, the heat exchange rate of Busan was 34.33 W/m as the largest in heating season and it of Seoul was 40.61 W/m as the largest in cooling.

Low-Complexity Design of Quantizers for Distributed Systems

  • Kim, Yoon Hak
    • Journal of information and communication convergence engineering
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    • v.16 no.3
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    • pp.142-147
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    • 2018
  • We present a practical design algorithm for quantizers at nodes in distributed systems in which each local measurement is quantized without communication between nodes and transmitted to a fusion node that conducts estimation of the parameter of interest. The benefits of vector quantization (VQ) motivate us to incorporate the VQ strategy into our design and we propose a low-complexity design technique that seeks to assign vector codewords into sets such that each codeword in the sets should be closest to its associated local codeword. In doing so, we introduce new distance metrics to measure the distance between vector codewords and local ones and construct the sets of vector codewords at each node to minimize the average distance, resulting in an efficient and independent encoding of the vector codewords. Through extensive experiments, we show that the proposed algorithm can maintain comparable performance with a substantially reduced design complexity.

An Experimental Study on the Stress-Strain Relation of Concrete-Filled Steel Tubes (콘크리트충전 강관기둥의 응력-변형도 관계에 관한 실험적 연구)

  • 한병찬;임경택;엄철환;연길환;윤석천;정수영
    • Proceedings of the Korea Concrete Institute Conference
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    • 1995.10a
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    • pp.210-214
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    • 1995
  • Research on concrete-filled steel columns has been conducted. It is also well known that the load and deformation capacity of concrete-filled steel columns are considerable larger than those of widely used reinforced concrete columns and steel encased concrete columns because the concrete core in the steel is confined laterally by the steel. But, most of these works focused on columns with strength enhancement by the confinement effect, so that no local buckling prevented by the concrete. columns because the concrete core in the steel is confined laterally by the steel. But, most of these works focused on columns with strength enhancement by the confinement effect, so that no local buckling prevented by the concrete. This paper, therefore, presents on the stress-strain relation of a concrete filled rectangular steel tube under axial compression. As the results, the axial load verse average axial strain relationship of concrete-filled rectangular steel columns were very stable. The small B/t ratios in concrete-filled rectangular steel columns aren't affected prevention of local buckling but strength enhancement by confinement effect.

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OVERCOMING THE NUTRITIONAL LIMITATIONS OF RICE STRAW FOR RUMINANTS 2. RESPONSE OF GROWING SAHIWAL AND LOCAL CROSS HEIFERS TO UREA UPGRADED AND UREA SUPPLEMENTED STRAW

  • Schiere, J.B.;Wieringa, J.
    • Asian-Australasian Journal of Animal Sciences
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    • v.1 no.4
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    • pp.209-212
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    • 1988
  • Thirty-six heifers of three different breeds were fed rice straw, either upgraded with 4% urea, or supplemented with 2% urea, sprayed on the straw just prior to feeding. The effects on liveweight gain and dry matter intake were measured for pure Sahiwal heifers, Sahiwal ${\times}$ local crosses and Jersey ${\times}$ local crosses. Urea upgraded straw gave better growth than urea supplemented straw, average 217 g/day/ animal versus 71 g/day/animal. This was associated with a higher intake of upgraded straw, compared to supplementation straw (2.4 versus 1.8 kg/100 kg BW). No overall breed effect on growth was found (P>0.05).

On Sweeping Operators for Reducing Premature Convergence of Genetic Algorithms (유전 알고리즘의 조기수렴 저감을 위한 연산자 소인방법 연구)

  • Lee, Hong-Kyu
    • Journal of Institute of Control, Robotics and Systems
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    • v.17 no.12
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    • pp.1210-1218
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    • 2011
  • GA (Genetic Algorithms) are efficient for searching for global optima but may have some problems such as premature convergence, convergence to local extremum and divergence. These phenomena are related to the evolutionary operators. As population diversity converges to low value, the search ability of a GA decreases and premature convergence or converging to local extremum may occur but population diversity converges to high value, then genetic algorithm may diverge. To guarantee that genetic algorithms converge to the global optima, the genetic operators should be chosen properly. In this paper, we analyze the effects of the selection operator, crossover operator, and mutation operator on convergence properties, and propose the sweeping method of mutation probability and elitist propagation rate to maintain the diversity of the GA's population for getting out of the premature convergence. Results of simulation studies verify the feasibility of using these sweeping operators to avoid premature convergence and convergence to local extrema.

A new damage index for seismic fragility analysis of reinforced concrete columns

  • Kang, Jun Won;Lee, Jeeho
    • Structural Engineering and Mechanics
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    • v.60 no.5
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    • pp.875-890
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    • 2016
  • A new structural damage index for seismic fragility analysis of reinforced concrete columns is developed based on a local tensile damage variable of the Lee and Fenves plastic-damage model. The proposed damage index is formulated from the nonlinear regression of experimental column test data. In contrast to the response-based damage index, the proposed damage index is well-defined in the form of a single monotonically-increasing function of the volume weighted average of local damage distribution, and provides the necessary computability and objectivity. It is shown that the present damage index can be appropriately zoned to be used in seismic fragility analysis. An application example in the computational seismic fragility evaluation of reinforced concrete columns validates the effectiveness of the proposed damage index.

Analysis on the Relating Factors of Managerial Performance of Local Government Hospitals (지방의료원의 경영성과 관련요인 분석)

  • Lee, Chang-Eun
    • The Korean Journal of Health Service Management
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    • v.3 no.2
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    • pp.1-15
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    • 2009
  • The purpose of this study is to analyze the internal factors that influence the performance of local government hospitals in Korea. There are 34 hospitals in korea as of 2008. Among these hospitals 5 are profit-making and the other loss-making in terms of profitability. Data was collected by Institute of local government hospital union. The major findings of this study was as follows : Firstly, 7 hospitals are high level, over than 100% of fixed ratio. But that result was better than the other study 5 years ago. Secondly, 29 hospitals are bellow 85% of bed occupancy rate. There are a number of hospitals didn't use the facilities and the personnel cost in total costs are high. And lastly, as a result of multiple regression analysis, the factors had on significant effect on normal profit to total assets are personnel cost(-), liability to total assets(-), average length of stay(-), outpatient visits to inpatient days(-). In conclusion, to improve the profitability of hospitals, the efforts to reduce personnel cost and to increase bed occupancy rate.

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Effect on the Management of Postherpetic Neuralgia (대상포진 후 동통에 대한 치료 효과)

  • Koo, Bon-Up;Park, Dae-Pal
    • Journal of Yeungnam Medical Science
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    • v.8 no.1
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    • pp.136-141
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    • 1991
  • Fifteen patients was analyzed on effect of the management of postherpetic neuralgia by local anesthesia on the special region at pain clinic in Youngnam University Hospital. The results were on follows : 1) The frequency of occurrence of sex and the lesion side were similar in all patients. 2) The age of incidence was between 50 and 70 years old. 3) The most frequent site of lesions was the neck. 4) There was no relationship between age and treatment time. 5) Whole patients was done average 7-10 time local injection.

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