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An attosecond precision and femtosecond range timing jitter measurement and control technique is proposed. It is based on the modulation of the combined pulse induced by relative time delay of individual pulses. The core of this timing jitter detection method is the integrated technique of optical cross correlation and electrical energy interferometry. To illustrate this technique, a proof-of-principle...
Developing spatiotemporal data adaptive visualization methods for spatial information services is an essential and complex issue, particularly on the small display devices. It is becoming ever more important with the progress in the fields of mobile Internet and positing methods, as well as the widely use of mobile devices. However, the limitations in devices and the changes in user's demands make...
Government procurement is becoming a kind of important economic activity now, government procurement includes the procurement activities such as procurement mode and procurement process, it is a complex system engineering which includes commerce activity and administration activity. With the increase of government procurement operation, the management of government procurement will become very onerous...
This paper studies dynamic risk evaluation for enterprise embedding in cluster. A multi-stages and multi-layers risk comprehensive estimation model is established according to evaluation principle of fuzzy mathematics, and the stage's risk affecting on total process can be calculated based on the model after the multi-stages and multi-layers risk is analyzed. In the end, a case study is given to show...
With the rapid growth of the Internet, e-commerce has been growing and expanding significantly, according to Fortune, almost all of the global top 500 companies have started online marketing; e-commerce is presently far from the mainstream of modern trade behaviors. The influencing factors in e-commerce transaction behaviors are explored in this paper. This paper takes network customers of a large...
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