period 
Let 0≤g be a dyadic H?lder continuous function with period 1 and g(0)=1, and let.


The survival probability in finite time period in fully discrete risk model


To some twoperiod economies with countable infinite state spaces, the existence of expectation equilibrium of real asset economies with transaction costs is given.


Epidemiologic model of SIS type has a delay corresponding to the infectious period and diseaserelated deaths, so that the population size is variable.


This paper considers an SEIS epidemic model with infectious force in the latent period and a general populationsize dependent contact rate.


The same qualitative results are obtained provided the threshold is more than unity for the corresponding SEIS model with no infectious force in the latent period.


Increasing the impulsive period τ, the system undergoes a series of perioddoubling bifurcation leading to chaos, which implies that the dynamical behaviors of the periodically pulsed ratiodependent predatorprey ecosystem are very complex.


Two perturbation results on the linear differential function f″ + Π(z)A(z)f = 0 are obtained, where Π(z) and A(z) are periodic entire functions with period 2πi and σe(Π) >amp;lt; σe(A).


The results show that low concentrations of NO were selfproduced by marine algae during the exponential growth period and were about nmol/L level.


But at the end of the period, i.e., 2 or 3 days before the cell density reaches the maximum, an NO peak appeared, with the NO concentration reaching 10 nmol/L.


As a result, the boundaries between the surface crystals become a little larger with prolonging the period of ageing time.


However, a ripple current occurs in the inactive phase due to the diode freewheeling during the noncommutation period in the traditional pulse width modulation (PWM) methods, which aggravates the torque ripples.


A new PWM method is proposed in this paper to eliminate the diode freewheeling during the noncommutation period in the inactive phase.


In addition, there are only two design parameters, which are the predictive period and control order, so it is easy to implement and test in practical use.


A function of synchronous superposition of object complex amplitude reconstructed from Nstep phaseshifting through one integral period (Nstep phaseshifting function for short) was proposed.


The experiment shows that the method can efficiently extract the frequency of a periodchange radio frequency signal in a complex pulses environment and reveals a new feature for the signal sorting of interleaved radar pulse serial.


A new frequencyselective surface (FSS) with loadings is introduced in this paper and analyzed by way of period moment methods (PMMs).


euphratica leaves exhibited a higher capacity to exclude salt in a longer period of increasing salinity, thus limited saltinduced lipid peroxide and MP, which contributed to membrane integrity maintenance and salt tolerance of P.


Concentrations of N, Ca and Mg gradually increased and those of P and K gradually decreased in the fine roots of poplar during the period of decomposition.


A bottleneck in sexual propagation appeared at the stage from seed to seedling, while in clonal propagation it appeared during the period from an asexual plantlet to a ramet.

