• 호남수학학술지
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• 제41권3호
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• pp.595-607
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• 2019

We consider quasigroups $Q({\Gamma})$ obtained as certain double covers of the symmetric group $S_3$ of degree 3, for directed graphs ${\Gamma}$ on the vertex set $S_3$. We completely characterize the strong compatibility of elements of $Q({\Gamma})$ for any quasigroup nonuniform homogeneous space of degree 4. For such homogeneous spaces, we classify all the strong and weak compatibility graphs of $Q({\Gamma})$.

• 천문학회보
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• 제44권1호
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• pp.50.4-50.4
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• 2019

We detect a new population of chromospheric jets in a polar coronal hole observed by Hinode/SOT. The propagating speed of the jets ranges in 30 - 490 km/s whose duration time is 3 - 52 s. The recurrent rate is approximately 3/min for a give segment of 1 arc-second horizontal interval. These jets are seemed to be more transient and faster than type II spicules at chromosphere, while the properties are compatible with the network jets seen in emission lines of transition region. We will discuss the implication of these jets for a coronal heating.

• 한국에너지공학회:학술대회논문집
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• 한국에너지공학회 1999년도 추계 학술발표회 논문집
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• pp.125-130
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• 1999

Corrosion of steam generator tubes is the major issue affecting selection of secondary water chemistry parameters. The objective of secondary side water chemistry control is to minimize corrosion damage and to thereby maximize the reliability and economic performance of the secondary system. To achieve this objective, the water chemistry has to be compatible with all parts of the system including steam generators.(Omitted)

• 한국통신학회논문지
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• 제38C권11호
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• pp.1010-1018
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• 2013

EBS는 2011년 12월 21일에 제정된 듀얼스트림 방식의 국내 지상파 3DTV 송수신 정합 표준에 근거하여 듀얼 스트림 방식의 3DTV 1차 시범방송을 2012년 4월 실시하였다. 듀얼스트림 방식의 3DTV는 Service-compatible 방식으로 기존 2D HDTV와 Backward compatibility를 제공하여 2D용 HDTV를 가진 시청자는 그대로 2D 방송을 볼 수 있게 한다. 또한, 3DTV 수신기를 가진 시청자는 2D와 3D 방송을 선택적으로 볼 수 있다. 현재의 지상파 방송사의 콘텐츠 제작 여건으로 볼 때 3D 방송 도입 초기에는 대부분 2D 프로그램으로 서비스되고 혼합 편성을 통해 특정 시간대의 일부 프로그램만이 3D 방송으로 편성될 예정이다. 이에 대비하여 안정적으로 2D 시청자와 3D 시청자에게 서비스를 제공하는 방법에 대한 고려가 필요하다. 그래서 본 논문에서는 지상파 DTV 서비스에 듀얼스트림 방식 3D 서비스 도입의 경우에 기존 2D HDTV 시청 시 영상화면 깨짐과 같은 불완전한 현상을 막고 3DTV 서비스를 안정적으로 제공하기 위한 방송 송출 시스템 구성과 효과적인 전환 기법을 제안한다.

• The Journal of Advanced Prosthodontics
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• 제14권2호
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• pp.70-77
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• 2022

PURPOSE. This study evaluated screw loosening and 3D crown displacement after cyclic loading of implant-supported incisor crowns cemented with original titanium bases or with three compatible, nonoriginal components. MATERIALS AND METHODS. A total of 32 dental implants were divided into four groups (n = 8 each): Group 1 used original titanium bases, while Groups 2-4 used compatible components. The reverse torque value (RTV) was evaluated prior to and after cyclic loading (1,200,000 cycles). Samples (prior to and after cyclic loading) were scanned with a microcomputed tomography (micro-CT). Preload and postload files were superimposed by 3D inspection software, and 3D crown displacement analysis was performed using root-mean-square (RMS) values. All datasets were analyzed using one-way ANOVA and Tukey's post hoc analysis. RESULTS. Significant variations were observed in the postload RTV, depending on the titanium base brand (P < .001). The mean postload RTVs were significantly higher in Groups 1 and 2 than in the other study groups. While evaluating 3D crown displacement, the lowest mean RMS value was shown in the original Group 1, with the highest RMS value occurring in Group 4. CONCLUSION. Within the limitations of this in vitro study and under the implemented conditions, it was concluded that the manufacturer brand of the titanium base significantly influenced screw loosening following the fatigue test and influenced 3D crown displacement after cyclic loading.

• 대한영양사협회학술지
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• 제17권1호
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• pp.47-57
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• 2011

The purpose of this research was to investigate consumption and satisfaction of Takju (Makgeolli) among consumers ages 20 to 29 living in Seoul and Gyeonggi province. It was found that 86.2% of the respondents drank Takju once or twice a month, and the high satisfaction group drank Takju with a frequency of 8 times a month (P<0.01). Respondents selected market (44.4%) and restaurants (34.9%) as the most common place of purchase, whereas pub (42.2%) and Takju bar (32.8%) were the drinking places selected. Regarding the preferred ingredients, respondents liked pear the most followed by Lycium chinense, corn, pine nuts, ginseng, and citrus fruit. The most compatible foods with Takju were identified as Buchimgae (Jeon) (97.4%), Kimchi (45.6%), Bokkeum (36.4%), Namul & Muchim (25.0%), and Jjim (21.5%). Pajeon was mentioned as the most compatible food with Takju, followed by Bulgogi, Gamjatang, Agwijjim, Dubukimchibokkeum, and Ojingeotwigim. Regarding consumers' satisfaction of Takju, taste was the most highly valued, with color, price, alcohol content, function, flavor, diversity of raw materials, and accuracy of label also highly considered. Further, to formulate a plan to encourage consumption of Takju, the high satisfaction group decided that promotion of local festivals and events related to Takju, standardization of quality, creation of brands, expansion of distribution network, and organization of relevant departments are the most important compared to other items (P<0.05).

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2006년도 International Symposium on GPS/GNSS Vol.1
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• pp.221-226
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• 2006

Around 2002, the United States Coast Guard (USCG) identified a need to re-capitalize their Reference Station (RS) and Integrity Monitor (IM) equipment used in the Nationwide Differential Global Position System (NDGPS). Commercially available off-the-shelf differential RS and IM equipment lacked the open architecture required to support long-term goals that include future system improvements such as use of new civil frequencies on L2 and L5 and realization of a higher rate NDGPS beacon data channel intended to support RTK. The first step in preparing for this future NDGPS was to port current RTCM SC-104 compatible RS and IM functionality onto an open architecture PC-based platform. Trimble's product Charisma is a PC-based RS and IM software designed to meet these USCG goals. In fact USCG engineers provided key designs and design insights throughout the development. We cannot overstate the contribution of the USCG engineers. Fundamental requirements for this effort were that it be sufficiently flexible in hardware and software design to support fluid growth and exploitation of new signals and technologies as they become available, yet remain backward compatible with legacy user receivers and existing site hardware and system architecture. These fundamental goals placed an implicit adaptability requirement on the design of the replacement RS and IM. Additionally, project engineers were to remain focused on sustaining the high level of differential GPS service that 1.5 million legacy users have come to depend on. This paper will present new hardware and software (i.e., Trimble's Charisma software) architecture for the next generation NDGPS RS and IM. This innovative approach to engineering on an open architecture PC-based platform allows the system to continue to fulfill legacy NDGPS system requirements and allows the USCG and others to pursue a scalable hardware re-capitalization strategy. We will use the USCG's recapitalization project to explain the essential role of the Charisma software.

• 한국응용곤충학회지
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• 제21권1호
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• pp.27-33
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• 1982

도열병의 특이적저항성에 관여하는 항균성물질인 phytoalexin을 친화적조합 혹은 비친화적조합에서 광범위하게 조사하였고 더 나아가 이의 경시적인 생성량과 생성속도 그리고 질소과용에 의한 생성량의 변화를 조사한 결과는 다음과 같다. 1. 공시수도품종 진흥, 수원 288호, 밀양 23호, Fukei 95, Chikeung, 노풍, 유신, 이리 344호, 9품종과 공시도열병균 race $C-8^{+t},\;N-2{+t}$, 및 N-2 3균계의 비친화적조합에서는 친화적조합에서 보다 훨씬 높은 phytoalexin 활성을 나타냈으며 친화적조합에서도 이의 활성이 인정되었다. 2. 균부화액 접종후 phytoalexin 활성의 경시적변화에서는 접종 24시간후에 명백히 그 활성이 인정되었으며 36시간후에는 최고활성을 보였는데 그 이후로 점차 감소하였다. 그러나 진흥과 N-2와의 조합에서는 24시간에 peak에 달하였고 그 이후 감소하였다. 친화적조합과 비친화적조합을 비교해 보면 친화적조합에서 보다 비친화적조합에서 활성이 높았고 증가속도도 약간 빨랐다. 3. 질소시여수준에 따른 phytoalexin 활성의 변화는 전반적으로 친화적조합에서나 비친화적조합에서나 과시비에 의해 그 활성이 떨어졌으며 비친화적조합에서 더욱 심하였다. 4. 생엽착즙액에서 포자발아율은 친화적조합 또는 비친화적조합 모두 일정한 경향을 볼 수 없었으며 조합간의 유의적인 차이도 인정되지 않았다.

• 한국통신학회논문지
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• 제30권5A
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• pp.370-375
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• 2005

인터넷 및 통신망 국제표준 단체들은 자신들의 망에서 서비스 품질 보장형 기능을 제공하기 위한 방안으로써 공통적으로 리키버킷에 의한 입력 트래픽 정의 방법을 채택하고 있다. 반면, 그동안 연구결과는 멀티미디어 트래픽의 버스트특성이 시간적으로 광범위한 준위에 걸쳐 있음을 확인하고 있다. 이러한 두개의 상반되는 현실을 해결하기 위하여 본 논문에서는 임계 시준위 개념을 사용한 표준적 트래픽 기술자계산 방법을 제안하고 이를 시뮬레이션을 통하여 분석하였다. 제안된 알고리듬은 지연치가 주어진 상태에서 최상의 성능을 얻음을 수학적으로 증명하였고, 실제 시스템 응용에 대하여 제안하였다.

• Journal of Microbiology
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• 제42권3호
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• pp.174-180
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• 2004

A halophilic bacterium was isolated from fermented seafood. The 16S rDNA sequence identity between the isolate and Halomonas subglaciescola AJ306801 was above 95％. The isolate that did not grow in the condition without NaCl or in the condition with other sodium (Na$\^$+/) or chloride ions (Cl$\^$-/) instead of NaCl was named H. subglaciescola DH-l. Two mutants capable of growing without NaCl were obtained by random mutagenesis, of which their total soluble protein profiles were compared with those of the wild type by two-dimensional electrophoresis. The external compatible solutes (betaine and choline) and cell extract of the wild type did not function as osmoprotectants, and these parameters within the mutants did not enhance their growth in the saline environment. In the proton translocation test, rapid acidification of the reactant was not detected for the wild type, but it was detected for the mutant in the condition without NaCl. From these results, we derived the hypothesis that NaCl may be absolutely required for the energy metabolism of H. subglaciescola DH-l but not for its osmoregulation, and the mutants may have another modified proton translocation system that is independent of NaCl, except for those mutants with an NaCl-dependent system.