• Annual Conference of KIPS
• /
• 2010.04a
• /
• pp.86-88
• /
• 2010

MPSoC 는 저렴한 하드웨어 비용으로 신속하게 데이터를 처리할 수 있어 고성능 멀티미디어 프로그램, 이동통신기기, 텔레매틱스, 모바일 엔터테인먼트 기기에 맞는 솔루션을 제공하고 있다. 본 논문은 이러한 MPSoC 연구의 일환으로 ADChips 의 EISC 프로세서와 Zaram 의 DSP 를 이용하여 개발된 Polaris-1 보드에서 EEMBC 벤치마크 프로그램을 EISC 프로세서인 Empress 에서 동작할 수 있도록 하는 구현에 대한 연구를 소개한다. 본 논문에서 제시한 하나의 프로세서에 작업을 할당하는 방법을 확장함으로써, MPSoC 의 멀티코어를 사용하기 위한 프로그램을 개발 할 수 있을 것이다. 또한, 앞으로 지속적으로 연구될 Polaris-1 보드의 연구기반을 마련하였다고 볼 수 있다.

• 건축구조
• /
• v.12 no.4
• /
• pp.84-85
• /
• 2005

• The Bulletin of The Korean Astronomical Society
• /
• v.28 no.1
• /
• pp.87-87
• /
• 2003

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2018.11a
• /
• pp.181-182
• /
• 2018

지속되는 지구 온난화 현상으로 인해 해빙 속도가 가속화되면서, 북극 항로 활용의 필요성이 증가하고 있다. 본 연구에서는 북극해의 지형과 해빙 상태를 모두 고려한 최적 북극 항로 계획 방법을 제안하였다. 먼저, 연료 소모량을 최소화하는 항로를 탐색하기 위해 북극 항로 계획을 각종 지표를 전산화한 최적화 문제로 정식화하였다. 또한, 해빙을 고려하기 위해 POLARIS 규정을 고려한 선박의 운항 제약 조건을 추가하였다. 제안된 방법을 이용해 최적 북극 항로를 탐색한 결과, 안전하고 경제적인 항로를 도출할 수 있음을 확인하였다.

• Korean Journal of Veterinary Research
• /
• v.11 no.1
• /
• pp.83-90
• /
• 1971

The studies were conducted to ramify the splenic trabecular veins by injection of vinylite into the splenic veins in twenty five adult Korean cattle. The following results were obtained. 1. Splenic trabecular veins of bovine were collected from 3 chief Rami lienales: Rr. superior, inferior and V. polaris superior of the splenic veins, and the splenic parenchyma was ramified to 5-11 intralienal venous segments by the course of the trabecular veins. 2. Each one of the intralienal venous segments was dealt with 2-4 minute segments therefore, the splenic parenchyma was ramified from 13 minute segments in minimum to 35 minute segments in maximum. 3. The distribution of the veins in the spleen was divided into 7 types by the number of intralienal venous segment, and also was 15 kinds by collecting veins, Rr. superior et inferior and V. polaris superior. 4. The anastomosis was observed in the intralienal venous segments or minute segments. 5. Generally the splenic veins and arteries were like each other, but when observed minutely, they were unlike.

• The Bulletin of The Korean Astronomical Society
• /
• v.28 no.2
• /
• pp.86-86
• /
• 2003

• Journal of Korean Medical classics
• /
• v.19 no.2 s.33
• /
• pp.74-95
• /
• 2006

${\ulcorner}$Hwangje-Naegyeong${\lrcorner}$ recorded The Twenty Eight Constellations(二十八宿), the polaris, the Seven stars(北斗七星) and the Five stars(五星) and it accepted the astronomy of that time. The Twenty Eight Constellations assinged seven stars in the four cardinal points according to the ecliptic and became the criterion obsevering the way of the sun and the moon. ${\ulcorner}$Hwangje-Naegyeong${\lrcorner}$ explained that The Twenty Eight Constellations bring about the change of weather and role as criterion about the Universe Gate-Earth Door(天門-地戶). The Five Elementary attachment of the Twenty Eight Constellations is based on the direction of the earth in spring. The direction of the Twenty Eight Constellations changes from the viewpoint of celestial body in other seasons. ${\ulcorner}$Gugungpalpung-pyeon(九宮八風篇)${\lrcorner}$ and ${\ulcorner}$Selo-pyeon(歲露論)${\lrcorner}$ explained that the azimuth of the polaris and the Seven stars are related to the change of weather. ${\ulcorner}$Gigyobyeondaelon(氣交變大論)${\lrcorner}$ said that we can predict the Taegwa(太過 or Bulgeub(不及) of O-un(五運) by the orbital tracks and magnitude of the Five stars. It means that the astronomical observation is correctly performed in that time. The learning of Un-Gi(運氣學) is the study on the reciprocal action of heaven and earth. Besides the changeable disease during the 24 solar terms is related to climatic change produced by movements of heavenly bodies. For this reason, I think that the understanding of astronomical background will help to research The learning of Un-Gi.

• Journal of The Korean Astronomical Society
• /
• v.39 no.1
• /
• pp.9-17
• /
• 2006

In an attempt to investigate star formation activity and statistical properties of clumps of high Galactic latitude clouds (HLCs), we mapped the Polaris Flare region, PF121.3+25.5, in $^{12}CO\;and\;^{13}CO$ J = 1 - 0 using SRAO 6-m telescope and also observed its 12 $^{13}CO$ peak positions in CS J = 2 - 1 with TRAO 14-m telescope. $^{13}CO$ integrated intensity map shows clearly its clumpy structure and the locations of clumps well agree with $^{12}CO$morphology. CS line is not detected toward the 12 $^{13}CO$ peak positions, so we can conclude there are no dense $(\sim10^4\;cm^{-3})$ in this region. We decomposed 105 clumps from $^{13}CO$ map using GAUSSCLUMPS algorithm. The mass of clumps ranges from $7.8\;M_{\odot}\;to\;7.4{\times}10^{-2}\;M_{\odot}$ with a total mass of $66.4\;M_{\odot}$ The mass spectrum follows a power law, dN/dM ${\propto}\;M^{-\alpha}$ with a power index of ${\alpha}=1.91{\pm}0.13$. The virial masses of clumps are in the range of $10{\sim}100M_{LTE}$ and so these clumps are considered to be gravitationally unbound.

• Nuclear Engineering and Technology
• /
• v.53 no.9
• /
• pp.2816-2829
• /
• 2021

Decay heat residuals of spent nuclear fuel (SNF), i.e., the differences between calculations and measurements, were obtained previously for various spent fuel assemblies (SFA) using the Polaris module of the SCALE code system. In this paper, we compare decay heat residuals to their uncertainties, focusing on four PWRs and four BWRs. Uncertainties in nuclear data and model inputs are propagated stochastically through calculations using the SCALE/Sampler super-sequence. Total uncertainties could not explain the residuals of two SFAs measured at GE-Morris. The combined z-scores for all SFAs measured at the Clab facility could explain the resulting deviations. Nuclear-data-related uncertainties contribute more in the high burnup SFAs. Design and operational uncertainties tend to contribute more to the total uncertainties. Assembly burnup is a relevant variable as it correlates significantly with the SNF decay heat. Additionally, burnup uncertainty is a major contributor to decay heat uncertainty, and assumptions relating to these uncertainties are crucial. Propagation of nuclear data and design and operational uncertainties shows that the analyzed assemblies respond similarly with high correlation. The calculated decay heats are highly correlated in the PWRs and BWRs, whereas lower correlations were observed between decay heats of SFAs that differ in their burnups.

• The Bulletin of The Korean Astronomical Society
• /
• v.33 no.1
• /
• pp.84.1-84.1
• /
• 2008