Geese breeding in the Arctic have to do so in a short time-window while having sufficient body reserves. Hence, arrival time and body condition upon arrival largely influence breeding success. The green wave hypothesis posits that geese track a successively delayed spring flush of plant development on the way to their breeding sites. The green wave has been interpreted as representing either th...

A model of E × B staircases is proposed based on a wave kinetic equation coupled to poloidal momentum equation. staircase pattern idealized as periodic radial structure zonal shear layers that bound regions propagating packets, viewed avalanches. Wave packets are trapped in flow due refraction. In this model, an motif emerges the interaction between (avalanches) and waves presence instability d...

Two representative watersheds, Ammameh and Kasilian, located in Southern and Norten Elborz mountain in Iran respectively were considered. Fourteen events of rainfall-runoff in nonmelting seaons were chosen and their storms and flood hydrographs were gathered from an automatic recording station. Base flow separation was made by recession limb analysis while Philip equation was used for the calcu...

We present an XMM-Newton analysis of the cataclysmic variable T Leo. The X-ray light curve shows sinusoidal variation on a period Px equal to 0.89+0.14 −0.10 times the previously spectroscopically determined orbital period. Furthermore, we find a signal in the power spectrum at 414 sec that could be attributed to the spin period of the white dwarf. If true, T Leo would be the first confirmed su...

In this paper, optimized perfect reconstruction octave-band two-stage and three-stage tree-structured lter banks and optimized uniform four-channel and eight-channel lter banks are compared for hybrid video coding. The lter co-eecients are optimized at each stage for subband coding gain for nonuniform lter banks. Six types of frequency partitionings are presented to compare the eecient utilizat...

orthogonal frequency division multiplexing is a technique for transmitting large data over radio waves. The main drawback of OFDM is Peak to average power ratio(PAPR). This paper present all proposed techniques to reduce PAPR. These proposed techniques show better performance to reduce PAPR.

The aim of the study was to use combined longitudinal measurements of soleus (SOL) and gastrocnemii evoked V-wave and H-reflex responses to determine the site of adaptations within the central nervous system induced by 5 wk of neuromuscular electrical stimulation (NMES) training of the plantar flexor muscles. Nineteen healthy males subjects were divided into a neuromuscular electrostimulated gr...

conclusions the tsi analysis in patients with cad may be considered an interesting parameter in addition to the conventional echocardiographic parameters during ese. background stress echocardiography represents one of the best possible imaging choice for the diagnosis and stratification of patients with coronary artery disease (cad). however, this imaging technique presents some limitations su...