The densest packing of tetrahedra is still an unsolved problem.Numerical simulations of random close packing of tetrahedra are carried out with a sphere assembl
A hollow-core photonic crystal fibre (HC-PCF) based on small-pitch kagome lattice cladding is designed and fabricated. The pitch of the fibre is only 2.45 μm a
A novel design of all-optical AND gate is proposed by using cross polarization modulation effect in a semiconductor optical amplifier. In this scheme, an additi
Our understanding of the rapid neutron capture nucleosynthesis process in universe depends on the reliability of nuclear mass predictions. Initiated by the newl
Diffusion-weighted magnetic resonance spectroscopy(DWS)has considerable potential in clinical and research applications.However.it is seldom implemented in conv
We study the relationship between thermal conditions on the earth bottom boundary and the formation of Somali jet based on the Biot-Savart law and the data from