http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
DYNAMICAL AND STATISTICAL ASPECTS OF GRAVITATIONAL CLUSTERING IN THE UNIVERSE
SAHNI V. The Korean Astronomical Society 1996 Journal of The Korean Astronomical Society Vol.29 No.suppl1
We apply topological measures of clustering such as percolation and genus curves (PC & GC) and shape statistics to a set of scale free N-body simulations of large scale structure. Both genus and percolation curves evolve with time reflecting growth of non-Gaussianity in the N-body density field. The amplitude of the genus curve decreases with epoch due to non-linear mode coupling, the decrease being more noticeable for spectra with small scale power. Plotted against the filling factor GC shows very little evolution - a surprising result, since the percolation curve shows significant evolution for the same data. Our results indicate that both PC and GC could be used to discriminate between rival models of structure formation and the analysis of CMB maps. Using shape sensitive statistics we find that there is a strong tendency for objects in our simulations to be filament-like, the degree of filamentarity increasing with epoch.
KAPIL CHOPRA,V. SAHNI,R. S. MISHRA 대한설비공학회 2014 International Journal Of Air-Conditioning and Refr Vol.22 No.1
In this paper, comparative thermodynamic analysis of system-1 (multiple evaporators and compressorswith individual expansion valves) and system-2 (multiple evaporators and compressorswith multiple expansion valves) has been presented which is based on energy and exergy principles. The comparison of systems-1 and -2 using ecofriendly R410A, R290, R1234YF, R502,R404A, R152A and R134A refrigerants was done in terms of COP (energetic effciency), exergeticeffciency and system defect. Numerical model has been developed for systems-1 and -2 for ¯ndingout irreversibility and it was observed that system-2 is better system in comparison with system-1for selected refrigerants. It was also found that R152a shows better performances than otherconsidered refrigerants for both systems.
A Pipelined Architecture for Maze Routing
Won Young Ju,Sahni Sartaj K. Military Operations Research Society of Korea 1987 한국국방경영분석학회지 Vol.13 No.2
This paper presents a hardware accelerator for the maze routing problem. This accelerator consists of three 3 stage pipelines. Banked memory is used to avoid memory read/write conflicts and obtain maximum efficiency.