The microstructure of human tumor necrosis factor alpha(TNF-0633) and its mutant (TNF-b)has been investigated by utilizing positron annihilation lifetime spectr
An investigation on the dynamics of transformation of P from ^32P-labelled ryegrass in red soils was conducted in laboratory.The results showed thast the rapid
A new method for the preparation of p-iodophenyl pentadecanoic acid(IPPA) has been developed.The synthesis are described,and physical properties of IPPA are cha
Cross section σ4D→4F was measured for the collision transfer process of Na(4D) +Na(3S)→Na(4F)+Na(3S).The 4D state is excited by two-photon absorption using a