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Minimizing the flow completion times (FCTs) is a challenging work in information-agnostic datacenter networks, and a general approach is to configure multiple demotion thresholds so as to decrease the priorities of long flows, which can alleviate the impact on short flows, but how to appropriately set up these thresholds has not been addressed. In this paper, we firstly employ a queuing model to analyze...
Vector tracking loop (VTL) can be regarded as a kind of integration of navigation filter and signal tracking. It has a better performance for weak signal and can recapture signal quickly, but its robustness and computation complexity is worse. This paper mainly studies a tight integration model of navigation filter and tracking filter, which remains the signal tracking filter in local channels and...
California is the leading agricultural state in the United States. Agricultural production is being threatened by many factors: loss of agricultural land, water shortage, among others. In this paper, we employed an ordinary least square regression (OLS) model and a geographically weighted regression (GWR) model to examine the relationship between farming viability in California and three contributing...
In today's world, WWW as a platform to deliver instruction enables e-learning systems to manage a large quantity of different digital content. Students need digital, highly interactive educational materials which can be accessed at any time in their original form. In the same time, lecturing seems to remain dominant form of teaching. This combined raises the pyramidia for e-learning. The paper first...
In the error study of inertial navigation system (INS), the research on error analysis which is caused by gyro drift is limited to the constant drift in the past. Anyway, reality gyro drift is not a long-term unchanging one but varies continuously with time. With the study of systematic errors in depth, we can see that there exists a slope drift in a particular fiber optic gyroscope drift simulation,...
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