• Asian-Australasian Journal of Animal Sciences
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• v.15 no.8
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• pp.1076-1079
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• 2002

The DNA fingerprint polymorphism and the genetic relationship were studied by RAPD technology on Chaidamu goat (CG), Chaidamu Cashmere goat (CCG) and Liaoning Cashmere goat (LCG) from Chaidamu Basin of Qinghai province, China. The results showed that: The amplified bands were all 94 in 3 goat populations by using 8 random primers, and the DNA polymorphism frequencies of CG, CCG and LCG were 0.8404, 0.8617 and 0.8511, respectively, and the length of these DNA fragments were 176-2937 bp. The mean heterozygosities of the 3 goat populations were 0.5148, 0.5142 and 0.5075, respectively. The genetic relationship between CCG and CG or LCG were similar (Gst=4.37% and 3.79%; $D_{ij}=0.0109$ and 0.0106), and that between CG and LCG was further (Gst=13.14%; $D_{ij}=0.0230$). These results also showed that the genetic relationship between CCG and LCG was the closest, then CG and LCG, and CG and CCG was distant.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 1995.04a
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• pp.635-642
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• 1995

조립제품을 생산하기 위해, 부품간의 조립순서를 결정하는 문제는 전체조립공정에 중대한 영향을 미치는 문제이다. 이때 부품간이 조립순서를 결정하기 위해서는 조립상태에 관한 정보가 필요하다. 따라서 효율적인 조립순서를 결정하기 위해서는 조립상태에 대한 효과적인 표현법이 필요하게 된다. 본 논문에서는 이러한 효과적인 조립정보의 표현법으로서 CCG를 제시한다. CCG는 Component Coupling Graph로서 부품간의 기하학적인 간섭관계에 대한 정보를 접근 방향별로 표현한 그래프이다. 이때 접근방향은 +x,-x,+y,-y,+z,-z의 여섯방향이다. 이 CCG를 이용하면 각 조립상태에 대한 분해가능한 부품을 논리적으로 추론해 낼 수 있게 된다. 부품간의 기하학적인 간섭관계는 coupling 개념을 이용하여 표현하게 되는데, coupling은 각 부품간의 방향별 거리를 나타낸다.

• Korean Journal of Veterinary Service
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• v.40 no.3
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• pp.219-225
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• 2017

This study was investigated the synergistic effects from the combination of cefalexin and gentamicin (CCG) against Staphylococcus spp. isolated from bovine milk. Minimum inhibitory concentrations (MICs) and fractional inhibitory concentration (FIC) index were determined for 16 bacteria from 13 bovine farms in Gyeongsangnam province by the National Committee for Clinical Laboratory Standards broth microdilution procedure. Antimicrobial agents tested included cefalexin, gentamicin and CCG. Against Staphylococcus spp. tested, the MIC ranges of cefalexin, gentamicin and CCG were 0.25~1.0, 0.5~0.125 and $0.06{\sim}0.125{\mu}g/mL$, respectively. In addition, the FIC index ranges of CCG against most of the isolates was 0.28~0.43 and the FIC index of CCG against 2 strains of Staphylococcus haemolyticus (S. haemolyticus) was 0.59. In conclusion, CCG has a high antibacterial activity against Staphylococcus isolates, then the combination may be applied for the treatment of bovine mastitis caused by Staphylococcus spp.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.39 no.12
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• pp.1257-1263
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• 2015

A correlation between the transient regime and steady state regime on the creep crack growth (CCG) for Grade 91 steel, which is used as the structural material for the Gen-IV reactor systems, was investigated. A series of CCG tests were performed using 1/2" CT specimens under a constant applied load and at a constant temperature of $600^{\circ}C$. The CCG rates for the transient and steady state regimes were obtained in terms of $C^*$ parameter. The transient CCG rate had a close correlation with the steady-state CCG rate, as the slope of the transient CCG data was very similar to that of the steady state data. The transient rate was slower by 5.6 times as compared to the steady state rate. It can be inferred that the steady state CCG rate, which is required for long-time tests, can be predicted from the transient CCG rate obtained from short-time tests.

• Korean Journal of Environment and Ecology
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• v.11 no.1
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• pp.1-17
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• 1997

Now, a management plan is being prepared to conserve the landscape and eco-system of Hallasan National Park. A major concern of park managers and residents is the visual impact that activities have of the Mt. Hala landscape. One of the most important aspects of making management decisions is assessing the visual impact of proposed actions accurately enough to judge whether or not those actions are acceptable. Park managers and residents need methods they can use to assess the visual impact of various management actions. The impact of proposed management activities was portrayed by CCG Photomontage techniques and viewers rated sets of color photomontages on a 7 point SD scale. The findings were as follows : the CCG Photomontage is quite practical, vegetation restoration is necessary, and the proposed management actions are feasible. The visual simulation technique and assessment method in this research helps residents visualize and respond to management activities, making residents' participation in the planning process more effective.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.62 no.11
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• pp.1610-1616
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• 2013

Recently, district heating and cooling (DHC) systems based on combined cycle generation (CCG) providers are increasing in Korea. Since characteristics of combined heat and power (CHP) generators and heat demands of providers, heat trading between DHC providers based on the economic viewpoint is required; the heat trading has been doing. In this paper, a mathematical model for optimal operation based on heat trading between DHC providers is proposed. Especially, start-up characteristic of CCG is included. The operation model is established by mixed integer linear programming (MILP).

• Korean Journal of English Language and Linguistics
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• v.4 no.2
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• pp.175-194
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• 2004

This paper provides computational algorithms for English Questions, by which we can effectively handle and implement Yes-No Questions and Wh-Questions. Those algorithms will be developed in Categorial Grammar. In this paper, we will modify and revise Steedman＇s Combinatory Categorial Grammar (CCG) so that we can computationally implement Questions effectively, which will be called a CCG-like system. In this system, semantic interpretations of Questions will be calculated compositionally based on the functor-arguments relations of the constituents. In sum, this paper provides analyses of Questions in Categorial Grammar, by which we can effectively implement Questions in English.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.04a
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• pp.1470-1473
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• 2011

최근, 스마트폰 가입자 수가 1000만 명을 넘어설 전망으로 한국은 스마트폰 열풍이며 그중에서도 안드로이드 사용자가 폭발적으로 늘고 있는 추세다. 이러한 추세에 발맞춰 사람과 사람의 관계에 중심을 두는 서비스인 SNS가 급격히 성장하여 모바일의 장점을 살린 음성중심의 모바일SNS, 즉 보이스 채팅 시스템이 많은 인기를 끌고 있다. 그러나 기존 보이스 채팅 시스템의 대화상대 선정, 참여자들 간의 유대감 형성, 발언권 확보와 같은 주요 문제점들을 해결하기 위해 그룹형성, 멤버위치표시, 인원제한을 이용가능하게 하는 CCG(Closed Chatting Group, 폐쇄형 채팅 그룹)라는 '개설자의 현재 위치를 중심으로 형성된 채팅 그룹'을 도입한 CCG기반 보이스 채팅 시스템을 제안한다. 또한 기존의 사용성 낮은 디자인을 사용자 중심의 인터페이스 디자인을 사용하여 편리성을 제공한다. 사용자 중심의 CCG 기반 보이스 채팅 시스템인 SIC는 마음에 맞는 다양한 사람들과 원활한 커뮤니케이션을 할 수 있도록 도와 줄 것이다.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.39 no.1
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• pp.27-35
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• 2015

The material properties of crack growth models at an elevated temperature were derived from the results of numerous crack growth tests for Mod.9Cr-1Mo (ASME Grade 91) steel specimens under fatigue loading and creep loading at an elevated temperature. These crack growth models were needed for defect assessment under creep-fatigue loading. The mathematical crack growth rate models for fatigue crack growth (FCG) and creep crack growth (CCG) were determined based on the test results, and the models were compared with those of the French design code RCC-MRx to investigate the conservatism of the code. The French design code RCC-MRx provides an FCG model and a CCG model for Grade 91 steel in Section III Tome 6. It was shown that the FCG model of RCC-MRx is conservative, while the CCG model is non-conservative compared with the present test data. Thus, it was shown that further validation of the property was required. Mechanical strength tests and creep tests were also conducted, and the test results were compared with those of RCC-MRx.

• Nuclear Engineering and Technology
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• v.53 no.2
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• pp.572-582
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• 2021

This study investigated the creep and creep crack growth (CCG) behavior of the base metal (BM), weld metal (WM), and heat affected zone (HAZ) in a Gr. 91 weldment, which was made by a shield metal arc weld process. A series of tensile, creep, and CCG tests were performed for the BM, WM, and HAZ at 550 ℃. Creep behavior of the BM, WM, and HAZ was analyzed in terms of various creep laws; Norton's power-law, Monkman-Grant relation and damage tolerance factor (λ), and their constants were determined. In addition, each CCGR law for the BM, WM, and HAZ was proposed and compared in terms of a C^*-fracture parameter. The WM and HAZ revealed faster creep rate, lower rupture ductility, and faster CCGRs than the BM, but they showed a similar behavior in the creep and CCG. The CCGRs obtained in the present study exhibited a marginal difference when compared with those of RCC-MRx of currently elevated design code in France. A creep crack path in the HAZ plane progressed towards a weak fine-grained HAZ adjacent to the BM.