• Title/Summary/Keyword: SIRE

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Inplane Flexural Behavior of Concrete Walls Reinforced by Welded Wire Fabric (용접철망 콘크리트 벽체의 면내 휨거동 연구)

  • Kim, Dae-Joong;Kim, Woo;Yang, Ji-Soo;Yoon, Young-Ho;Chung, Lan
    • Proceedings of the Korea Concrete Institute Conference
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    • 1993.04a
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    • pp.136-141
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    • 1993
  • 8 Wall specimens (1/2 scaled) used welded wire fabric (Ф=6mm) and ordinary deformed reinforcement(D6) of which their ultimate tensile strength were almost same were tested to investigate the inplane-flexural behavior. Test results show that : 1. The wall strength with welded wire fabric was 20% less than that with deformed bar. 2. The wall ductility ratio of welded wire fabric was 1/3 times than that of deformed bar, approximately. 3. It is recommened that lap splice of welded sire fabric should be avoided in critical fracture zone.

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Distribution of viable indigenous bacteria in different sire fractions of ozonated soils

  • Yeong Hui, An;Hae Ryong, Jeong;Ji Won, Yang
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • 2004.04a
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    • pp.162-166
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    • 2004
  • This study investigated tile effect of ozonation on indigenous microorganisms distributed in different size fractions of soil aggregates. Soil was ozonated from 0 to 300 minutes. The treated soils were fractionated into 3 groups (small, <53 $\mu$m; medium, 53-500 $\mu$m; and large, 2000-500 $\mu$m) and total heterotrophic bacteria in the soils were enumerated. Cell number decreased rapidly within 120 minute ozonation and showed slow decrease upon longer ozonation. Abundance of total heterotrophic bacteria in each fraction was in the following order regardless of ozonation time: small>medium>large fractions. Difference in microbial abundance among the fractions was smaller as ozonation time increased.

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Development of Embedded Network Processor (임베디드 네트웍용 프로세서 개발)

  • 유문종;최종운
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.5 no.6
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    • pp.1078-1082
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    • 2001
  • This is an example of ABSTRACT format. We made a HTTP server using 8 bit microprocessor It was TMP84c015 which applied a z80 core and RTL8019AS was installed for an ethernet physical layer. Assembly language was used to optimized a performance of the MPU, to overcome an restriction of memory sire and to maximize the throughput of packet using TCP, UDP, IP, ICMP, ARP protocol. We used LabVIEW to verify the each protocol on the client side.

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DNA Marker Traceability Techniques for Hanwoo Industry

  • Lee, Jea-Young;Bae, Jung-Hwan;Lee, Yoon-Seok;Yeo, Jung-Sou
    • Journal of the Korean Data and Information Science Society
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    • v.17 no.4
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    • pp.1041-1051
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    • 2006
  • The effectiveness of genetic markers on Hanwoo traceability systems was applied and evaluated from Korean 33 Hanwoo elite sire families. Five microsatellite markers were selected finally, which were located on chromosomes different chromosomes with the end sequencing of 100 HW-YUBAC that were recorded in the NCBI by Yeungnam University. Eleven major microsatellite markers were selected from allele amplified, their frequencies, H(Heterozygosity) and PIC(Polymorphism information content) with Hardy-Weinberg equilibrium. Next, in order to evaluate the power of the markers selected on the individual animal identification with experimental condition, the match probability(MP) and the relatedness coefficient(R) were computed.

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Performance Comparison of the CELM Encryption Algorithm (CELM 암호화 알고리즘의 성능 비교)

  • 박혜련;이종혁
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.6 no.3
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    • pp.481-486
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    • 2002
  • In this paper, we propose CELM(Cascade ELM) to improve stability. We could realize as cascade connected each other key value with N degree equation which has a initial value. And we could know to be improved in stability with the nature of Chaos in simulation result. In efficiency, this CELM algorithm identified sire of encrypted code with size of source code and we could know more efficient than existing RSA and ECC. In speed, CELM took average 0.18㎳ degree to encrypt a file. Although it was slower than DES, it was faster than ECC of RSA.

Hanwoo(Korean Cattle) Traceability Using DNA Markers

  • Yeo, Jung-Sou;Rhee, Sung-Won;Choi, Yu-Mi;Kwon, Jae-Chul;Lee, Jea-Young
    • Communications for Statistical Applications and Methods
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    • v.13 no.3
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    • pp.733-743
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    • 2006
  • To apply and evaluate the effectiveness of genetic markers on Hanwoo traceability systems, samples of 33 Hanwoo individuals from Korean elite sire families were used, and five microsatellite markers were selected finally, which were located on chromosomes different chromosomes with the end sequencing of 100 HW-YUBAC that were recorded in the NCBI by Yeungnam University. Ten major microsatellite markers were selected from alleles amplified, their frequencies, H(Heterozygosity) and PIC(Polymorphism information content) with Hardy-Weinberg equilibrium. Next, in order to evaluate the power of the markers selected on the individual animal identification, the match probability(MP) and the relatedness coefficient(R) were computed.

Prediction of Form Accuracy during Traverse Grinding of Slender Workpiece Using the Cylindrical Prunge Grinding Data (원통연삭 실험자료를 이용한 트래버스 연삭공정중의 형상예측)

  • 박철우;이상조
    • Journal of the Korean Society for Precision Engineering
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    • v.17 no.3
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    • pp.174-183
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    • 2000
  • Non-Parallelism the axial direction occurs during grinding process of long slender shafts. The reason for the axial error is due to elastic deformation of the components, accumulation phenomenon of the grinding and wheel wear during the grinding process. The accumulation phenomenon, the size generation mechanism and the wheel wear process during traverse grinding result in complicated process at each step on the wheel surface. The grinding system stiffness obtained from the stiffness of the center on the tailstock and the workpiece varing according to the relative position of the wheel and the workpiece. Further more, the value of wheel wear increases as the grinding process advances. The above mentioned issues make the shape generation process during traverse grinding quite complicated. This research analyzes the shape generation process in the direction of the work spindle. First, the formulation of the grinding system stiffness was conducted and the simulation analysis method of the traverse grinding was established. Also, a measuring system for assessing the dimensinal accuracy of the workpiece has been developed.

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Chicken Breeding with Local Breeds in China - A Review

  • Jiang, X.;Groen, A.F.
    • Asian-Australasian Journal of Animal Sciences
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    • v.13 no.10
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    • pp.1482-1498
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    • 2000
  • This paper reviews the meat-type chicken breeding with local breeds in China. The quality chickens are defined as purebred final products of local breeds, and semi-quality chickens as crossbreds of local breeds with specialized broiler (sire or dam) lines from western breeding organizations. The present status of the chicken production and the market in China, in comparison with the western countries, is reviewed, indicating that there is large market demand for (semi-) quality chickens in the present and future China. Breeding for (semi-) quality chickens emphasizes the sensory quality of chicken meat. The present status of breeding for (semi-) quality chickens with the local breeds is illustrated, including breeding goals and the existing breeding programs. The potential role of local breeds in breeding programs in China is discussed in relation to both providing higher quality (than commercial hybrid broilers) of chicken meat for the local market and meeting the objectives of genetic resource conservation. Besides, further research topics on breeding for (semi-) quality chickens are suggested.

Development of Film Scanner using Laser (레이저를 이용한 필름 스캐너의 개발)

  • Chee, Young-Joon;Park, Kwang-Suk
    • Proceedings of the KOSOMBE Conference
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    • v.1994 no.12
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    • pp.101-103
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    • 1994
  • The film scanner that digitizes the conventional x-ray films is the necessary equipment in the transition period of going to the filmless hospital. We have developed the film scanner using laser. We have selected HeNe laser as light source. The polygonal mirror converts the point light source to line scanning light. In sensing part, the diffusing cylinder and 7 photo transistors converts the light signal which passing the film into the electric signal. With this scanner, we can scan successfully the conventional x-ray film by $1024\times1024$. Smaller the spot sire is, higher the resolution can be achieved.

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A Study on a Queue Management Scheme for Alleviating the Impact of Packet Size on the Throughput (패킷 크기에 따른 처리율 영향을 완화하는 큐 관리 기법 연구)

  • 이성근
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.6 no.4
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    • pp.552-558
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    • 2002
  • Differentiated services (DiffServ) architecture defines a new framework for the support of quality of service (QoS) in IP-based networks. RIO has received the most attention among all the active queue management mechanisms proposed for assured service in DiffServ environment. The paper proposed the enhanced RIO which could alleviate the impact of flow's packet sire on the realized throughput. The simulation results indicate that this mechanism, when combined with TSW as traffic conditioner, provide better throughput assurance and fair distribution of excess bandwidth independent of packet size of flows in case of well-provisioned network environment.