As the case number on April 28 is 144, we use a transformation of S t) = S real(t)–143, where S real(t) is the actual data at time t, so the initial data on April 28 used here is S 0) = 1.
Regarding intermittent missing forms, simulation of missing data was performed at each measurement time: if patient i presents missing data at time t, then all items of the dimension are missing for that patient at time t.
The error function is defined as follows: Suppose that x c i,t is the time-course data at time t of x i calculated by using the estimated parameter values, and x m i,t represents the measured data at time t.
3) In the data transmission time (T D ), each femto-BS only allocates an unoccupied RB sensed in the sensing time to its user (by only utilizing these unoccupied RBs, cross-tier interference can be consequently avoided).
What's more, the data transmission time T 2 j is also adaptively adjusted with the aim of limiting the missed spectrum opportunity, which is the time interval when PU is inactive but not detected by the SU.
(1.2) where (x_{i}(t)) is the rate at which source i transmits data at time t, α and β are positive real numbers, (p(t)) is the loss probability function, (tau_{i}) is the round-trip delay for source i, c is the link capacity, k and γ are positive gain parameter, (i=1,2).
The example in Fig. 2 illustrates the distribution of transmission opportunities of sender s, in which node u11 will wake up to receive packet from s at time t1 and at least two nodes ui1 and ui2 will be awake to receive data at time t i. Fig. 2 Example of the single-hop transmission opportunity distribution for sender s.
Hereafter, the data at time T represents the temporal mean value for the time window of ±0.1 second.
We declare that there is evidence of an outbreak signature in the radiograph data at time t if the outbreak process D k, t, defined by (2), exceeds a given threshold, τ k, α.
Model 2 In the analysis of follow-up data the time T (Y is measured 16 weeks and 6 months following randomisation) is included and the mixed model for repeated measures is used.
