关于风沙土的一些雏议

本文论述了土壤形成过程中应具有的一些质的特征,从而证明了流动砂丘并非属于土壤,而只是地质作用的非土形成物或成土母质。在此基础上,对流动砂丘上土壤的形成发育演变方向以及在土壤分类中的地位和命名等问题进行了探讨。     

浅析折扣方式下计税金额的确定方法

为了明确折扣方式下应税金额的确定方法,分别从计税销售额、营业额和所得额等方面进行分析,其结果将使纳税人的财务会计处理和具体纳税操作更为规范和准确。     

青藏高原夏季地面有效辐射随高度的变化

根据1979年5-8月青藏高原热源观测资料,作者分析了高原上长波辐射随海拔高度的变化特点.地面辐射随海拔的的变化很缓慢,大气逆辐射随高度增高而很快减小,地面有效辐射在观测高度范围内(500米以下)则随着测点增高而增大.因此,如果将平原地区观测资料配合的计算有效辐射公式用于高原,其值将系统性偏低.为了表示平原与高原不同高度有效辐射的差别情况,作者根据观测资料求得了地面有效辐射与海拔高度的关系式.     

南宋以来太湖流域大涝大旱及近期趋势估计

本文研究南宋以来太湖地区大旱大涝并对近期大旱大涝趋势作了估计。     

PIN调制器在太阳射电快速记录系统中的运用和性能检测

本文简要地介绍了云南天文台太阳射电快速记录系统ＰＩＮ调制器的运用，描述了该器件的结构原理和性能检测，并给出了测试结果     

Rigid unit modes in the molecular dynamics simulation of quartz and the incommensurate phase transition

A molecular dynamics simulation of quartz at different temperatures both in the a and in the phase has been conducted. The - phase transition could be observed. A phonon analysis of the -phase confirms and rounds out in a quantitative way the origin of the incommensurate (ic) modulated phase. In particular it traces the optic soft mode at becoming (to a good approximation) a so-called rigid unit mode (RUM) at q0, and elucidates its coupling to the transverse acoustic mode which precipitates the incommensurate transition. This success underpins and illuminates the concept of RUMs and their role in structural phase transitions.     

A model of the galactic centre with magnetic monopoles

A model of the galactic centre with magnetic monopole has been presented here. The positron can be produced continuously through magnetic monopoles to induce baryon decay (Rubakov catalytic reaction) and a lot of energy can be released as well. The calculation results show that even if the galactic center contains only a few magnetic monopoles (=N _M/N_B10^–24), this massive object can not collapse into a black hole. This model can explain the observed intensities of the annihilation line and higher energy photons ofE >511 keV from the galactic centre.Paper presented at the IAU Third Asian-Pacific Regional Meeting, held in Kyoto, Japan, between 30 September–6 October, 1984.     

《徐霞客游记》的科学性和时代性——怒江、腾冲地区的实地验证

作者选取本人身历其境作过工作的怒江、腾冲地区来验证《徐霞客游记》,从徐氏进步的地理概念、游记严谨的逻辑结构、游记作者观察的细致深入等方面论述了徐霞客的献身精神和不朽贡献。     

Geochemistry of re and trace elements in ferromanganese nodules and their genesis

Trace and RE element geochemistry and genesis have been studied with respect to ferromanganese nodules from the sediments of the Pacific, Atlantic and Indian oceans.