Charge Form Factor and Cluster Structure of 6^6Li Nucleus

The charge form factor of ${}^6$Li nucleus is considered on the basis of its cluster structure. The charge density of ${}^6$Li is presented as a superposition of two terms. One of them is a folded density and the second one is a sum of ${}^4$He and the deuteron densities. Using the available experimental data for ${}^4$He and deuteron charge form factors, a good agreement of the calculations within the suggested scheme is obtained with the experimental data for the charge form factor of ${}^6$Li, including those in the region of large transferred momenta.Comment: 12 pages 5 figure

PARTICULAR FEATURES OF THE IMAGE FORMATION IN OPTICAL SYSTEMS WITH A RUNNING SPOT

The law establishment of the image formation in scanning optical microscopes (SOM) in the form of a system with a running spot is the aim of the paper as well as the method development for the measurement of parameters of semiconducting lasers under conditions of the radiation generation. As a result the power approach to the scanning optical microscopy for the estimation of limiting parameters and characteristics has been suggested as well as the model of the heterogeneous excitation for simiconducting lasers with the electron pumping. The methodology for the calibration of the increase and determination of the SOM resolution and the method for the measurement of semiconducting laser parameters under conditions of the radiation generation have been developed. The paper results have been introduced into operation. The investigation informativeness and realibility of microelectronics articles have been increased. The paper results may find their field of application in scanning optical microscopy, physics of semiconducting lasers with the electron pumpingAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio

Effects of biocidal treatments on metabolism in soil. VI. Fumigation with carbon disulfide

Used in high concentration as a soil fumigant, CS2 was broadly similar to CHCl3 in its effects on metabolism in soil; the amount of N mineralised in 10 days increased roughly 10-fold. the O2 consumption almost tripled and the evolution of CO2 more than doubled. However, the effects of CS2 were consistently slightly less than those of CHCl3. Used at low concentration (10 μg.g−1 soil) on a soil rich in organic matter (2.93% organic C), CS2 stopped nitrification completely, almost without other effect on soil respiration and mineralisation of N. In contrast, when used on a poorer soil (1.07% organic C) even 10 μgCS2.g−1 soil was sufficient to cause a detectable increase in both respiration and mineralisation of N, in addition to stopping nitrification