Gu and Zhu [16] have shown that Type-II Ricci flow singularities develop from nongeneric rotationally symmetric Riemannian metrics on Sn+1 (n ≥ 2). In this paper, we describe and provide plausibility arguments for a detailed asymptotic profile and rate of curvature blow-up that we predict such solutions exhibit.

We consider the origins of the spin-dependent scattering which is believed to be responsible for the giant magnetoresistance effect. We argue on the basis of first-principles calculations of the electronic structure, magnetic moments, and electrical resistivities that this spin-dependent scattering originates largely from the tendency of spin-dependent atomic potentials to 'match' in one of the...

The tremor injury is one of the common symptoms of Parkinson's disease. The patients suffering from Parkinson's disease have difficulty in controlling their movements owing to tremor. The intensity of the disease can be determined through specifying the range of intensity values of involuntary tremor in Parkinson patients. The level of disease in patients is determined through an empirical rang...

To solve the problems of unified identity authentication between heterogeneous application systems that emerged in the procedure of informatization construction. The paper presents a 3-tier architecture solution that contains user tier, unified authentication tier and application system tier to realize unified identity authentication between legacy system and new application system. For legacy ...

This paper describes a spread-spectrum downlink RAKE receiver that computes a data detection in the frequency domain. We assume a pilot signal is transmitted with data signals for channel sounding. The pilot signal does not degrade the receiver bit error rate (BER) performance because the receiver estimates the pilot signal and subtracts the estimated pilot signal from the received signal befor...

In coastal regions the presence of the marine boundary layer can significantly affect RF propagation. The relatively high specific humidity of the underlying “marine layer” creates elevated trapping layers in the radio refractivity structure. While direct sensing techniques provide good data, they are limited in their temporal and spatial scope. There is a need for assessing the three-dimension...