压水堆燃料棒锆-4包壳在大破口LOCA条件下的鼓胀爆破实验

研制成ＦＲＳ－２型压水堆锆－４包壳电加热模拟燃料棒，提供一种先进的实验方法和瞬态测量技术，目的在于研究锆－４包壳在大破口ＬＯＣＡ条件下的鼓胀爆破行为，给出秦山核电厂安全分析所需的爆破数据。报道了模拟燃料棒的结构、性能、包壳鼓胀爆破实验方法和破口检验内容。     

Non-steady-state model for kinetics of free radical polymerization, 4. Direct thermal initiation

This paper deals with the non-steady-state kinetics of direct thermal initiated polymerization. The initiation is assumed to be a bimolecular reaction of the monomer. The relationship between the radical concentration and the monomer conversion is rigorously derived. In further treatment a few very close approximations are introduced based on the fact that the number of monomer molecules reacting in the initiation step is much less than that consumed in the propagation step for a process producing high polymer, and the value of the rate constant for propagation or chain transfer is much lower than that for chain termination. Expressions for various molecular parameters, such as molecular weight distribution, number-average and weight-average degrees of polymerization, and dispersity, are given. Several numerical examples are provided.     

相容剂对PP／MBS体系形态的影响

研究了马来酸酐(MAH)-聚丙烯(PP)接枝共聚物(PP-g-MAH)对聚丙烯/甲基丙烯酸甲酯-丁二烯-苯乙烯共聚物(MBS)共混物形态的影响。结果表明,接枝共聚物改善了PP/MBS的相容性,使MBS在PP中形成了对韧性有利的较小且均匀的颗粒,并提高了两相界面间的粘结力。     

含碳羟磷灰石矿石中磷的物相分析方法

将磷物相分作胶磷矿含磷，含磷白云石，含磷褐铁矿及石英等硅铅酸盐含磷4相，并重点研究了陵磷矿的分相。     

Behaviour of Composite Ca/P Bioceramics in Simulated Body Fluid

Behavior of Ca/P ceramics enhanced by MgAl2O4 in simulated body fluid(SBF) was studied.Results show that, biological apatite can precipitate on the sudece of Ca/P composite ceramics,however, dissolution of the surface of Ca/P composite ceramics also occurs due to a kind of amorphous material which is produced through reaction of MgAl2O4 with Ca/P ceramics at elevated temperature, therefore, the behavior of Ca/P composite ceramics in SBF mainly depends on those two processes. Analyses of joint influence of those two processes show that low content of MgAl2O4 favors the formation of biological apatite, therefore, brings about higher bioactivity     

试论每股税后利润与每元资产净利：股市中两种指标的分析与应用

在股市中，常见的两种指标，即每股税后利润与每元资产净利。作者用“投入”和“产出”的关系，清晰地阐述了这两种指标的区别，并在评估企业经济效益时的实际意义。     

后处理中重铬酸铵浓度对MBG全息图衍射效率的影响

研究了后处理中重铬酸铵浓度对单纯亚甲蓝敏化的明胶（ＭＢＧ）全息图衍射效率的影响，比较了有铅和无铬两种不同后处理法所得曝光板红外与紫外可见吸收光谱图，未发现明显差异．对ＭＢＧ作了Ｘ射线能谱分析，并在此实验结果的基础上讨论了全息图形成的机理。     

金属间化合物FeAl超塑性变形中小角度晶界的迁移

利用透射电子显微镜弱束成像技术金属间化合物ＦｅＡｌ超塑性变形后的位错组态，发现一种由「１００」位错和「０１０」位错构成的倾侧小角度晶界，该晶界做了一定的迁移运动而形成一系列台阶，本文讨论了该晶界的台阶形成机制及其对ＦｅＡｌ金属间化合物超塑性变形的贡献。     

粉末溅射平面薄膜型SnO2／CeO2酒敏传感器

介绍粉末溅射研制的ＳｎＯ２／ＣｅＯ２酒敏薄膜的性能与膜厚、温度和掺杂量等关系的研究结果，并根据此结果对平面薄膜型敏感传感器的工艺和结构进行了设计；介绍了所研制器件的一些性能，并对有关问题进行了讨论。