The static correction of a near-surface model may be improved by using travel time tomographic inversion.We discuss unfavorable factors in the inversion of surf
Hepatitis D virus (HDV) infection is present worldwide and affects all age groups. Around 18 million people are estimated to be infected with HDV. An important
The well-known tower theorem of groups(resp.Lie algebras)shows that the tower of automorphism groups(resp.derivation algebras)of a finite group(resp.a finite di
This article studies the effects of air content on propeller cavitation and pressure fluctuations.The cavitation is observed while the pressure fluctuations on
A new method is proposed to numerically simulate problems of trains passing by each other at the same speed,and is implemented in UDF language of commercial sof
The multiband nonthermal emissions in radio,X-ray,and very high-energy (VHE)γ-ray bands from two distant blazars,H 2356-309 and 1ES 1218+304,have been detected
We present a statistical study of decimetric type Ⅲ radio bursts,coronal mass ejections(CMEs),and Hα flares observed in the period from July 2000 to March2005
According to the basic requirements of underground mine personnel position systems and the working characteristics of active RFID tags,we studied the cause of c