Electron microscopic autoradiographic studies on the dynamics and location of DNAsynthesis by means of incorporation of ~8H-thymidine during the replication of duck plaguevirus (DPV) revealed that the duration of DNA ...Electron microscopic autoradiographic studies on the dynamics and location of DNAsynthesis by means of incorporation of ~8H-thymidine during the replication of duck plaguevirus (DPV) revealed that the duration of DNA synthesis of DPV was rather long. The repli-cation of viral DNA occurred simultaneously with the assembly procedure of nucleocapsids, thematuration and release of viruses. DNA synthesis of DPV occurred in the matrix with lowerelectron density in the nucleus. The replicated viral DNA accumulated in the viroplast With highelectron density where the assembly of nucleocapsids occurred. The viroplast with high electrondensity was not the region of viral DNA synthesis.展开更多
We introduce a lattice-free hard sphere exclusion stochastic process.The resulting stochastic rates are distance based instead of cell based.The corresponding Markov chain build for this many particle system is update...We introduce a lattice-free hard sphere exclusion stochastic process.The resulting stochastic rates are distance based instead of cell based.The corresponding Markov chain build for this many particle system is updated using an adaptation of the kinetic Monte Carlo method.It becomes quickly apparent that due to the latticefree environment,and because of that alone,the dynamics behave differently than those in the lattice-based environment.This difference becomes increasingly larger with respect to particle densities/temperatures.Thewell-known packing problemand its solution(Palasti conjecture)seem to validate the resulting lattice-free dynamics.展开更多
A Dynamic Environmental Scanning Electron Microscope (DESEM) was developed in this laboratory for in situ monitoring of the morphology of metal surface during oxidation. The process of nucleation and growth of oxide g...A Dynamic Environmental Scanning Electron Microscope (DESEM) was developed in this laboratory for in situ monitoring of the morphology of metal surface during oxidation. The process of nucleation and growth of oxide grains/whiskers on Fe, Ni and TiAl during oxidation were successfully observed and recorded continuously by using our KYKY1500 ESEM. The experiments were carried out under different conditions of oxidation: temperature in the range of 500~750 oC and oxygen partial pressure in the range of 10-4~45 Pa. In the light of the observed surface morphology and microstructure during the oxidation, the growth mechanism and reaction kinetics were discussed.展开更多
文摘Electron microscopic autoradiographic studies on the dynamics and location of DNAsynthesis by means of incorporation of ~8H-thymidine during the replication of duck plaguevirus (DPV) revealed that the duration of DNA synthesis of DPV was rather long. The repli-cation of viral DNA occurred simultaneously with the assembly procedure of nucleocapsids, thematuration and release of viruses. DNA synthesis of DPV occurred in the matrix with lowerelectron density in the nucleus. The replicated viral DNA accumulated in the viroplast With highelectron density where the assembly of nucleocapsids occurred. The viroplast with high electrondensity was not the region of viral DNA synthesis.
文摘We introduce a lattice-free hard sphere exclusion stochastic process.The resulting stochastic rates are distance based instead of cell based.The corresponding Markov chain build for this many particle system is updated using an adaptation of the kinetic Monte Carlo method.It becomes quickly apparent that due to the latticefree environment,and because of that alone,the dynamics behave differently than those in the lattice-based environment.This difference becomes increasingly larger with respect to particle densities/temperatures.Thewell-known packing problemand its solution(Palasti conjecture)seem to validate the resulting lattice-free dynamics.
文摘A Dynamic Environmental Scanning Electron Microscope (DESEM) was developed in this laboratory for in situ monitoring of the morphology of metal surface during oxidation. The process of nucleation and growth of oxide grains/whiskers on Fe, Ni and TiAl during oxidation were successfully observed and recorded continuously by using our KYKY1500 ESEM. The experiments were carried out under different conditions of oxidation: temperature in the range of 500~750 oC and oxygen partial pressure in the range of 10-4~45 Pa. In the light of the observed surface morphology and microstructure during the oxidation, the growth mechanism and reaction kinetics were discussed.
