特殊形貌纳米氧化锌的制备研究

ZnO纳米材料在光学、电学、磁学、催化以及传感器等方面具有广阔的应用前景。不同形貌的纳米ZnO具有许多新奇的用途。本文对花状、梳状、四针状以及绣球状等特殊形貌ZnO的制备进行了综述。最后对纳米ZnO的应用前景进行了展望。     

转让定价税制中的举证责任分析

本文比较了由纳税人或税务机关承担举证责任两种模式的差别,以及相应的举证责任的倒置,提出应当由税务机关承担转让定价调整的举证责任,并在纳税人未履行相应的资料提供义务时减轻税务机关的证明程度,以解决税务机关所面临的举证困难。     

止咳祛痰灵颗粒剂的制备工艺研究

目的探讨止咳祛痰灵颗粒剂的制备工艺。方法以选用颗粒载药量为指标,对止咳祛痰灵颗粒剂的制备工艺进行优选。结果将药材提取2次,分别为30min及20min,加8倍量水;浓缩浸膏至45%水分,加15.0ml 95%乙醇制粒为最佳工艺条件。结论本实验筛选出了止咳祛痰灵的最佳制备工艺,符合《中国药典》要求。     

样品扦样与制备-真菌毒素准确分析中的决定性因素

本文介绍了真菌毒素污染水平检测过程中,影响其准确分析和正确评价的两大决定性因素——样品扦样和样品制备。指出样品扦样作为真菌毒素检测的第一步,直接关系到结果的代表性和可靠性,是引起真菌毒素检测结果变异程度的最大原因;样品制备,与分析结果直接相关,是真菌毒素准确分析、正确评价的重要保障。对这两方面应该给予足够重视,加强有关规范和标准的制定。     

纳米NiO多种制备方案的研究

制备纳米NiO的方法很多，选择工艺简单、成本低廉、易于实现工业化的制备方法及科学合理的工艺参数非常重要。用液相化学沉淀法以不同的镍盐与不同的沉淀剂制备纳米NiO。结果表明：以氯化镍为镍盐、碳酸氢铵为沉淀剂，用液相化学沉淀法制备纳米NiO效果较佳。     

浅议建筑工程项目在工程量清单计价下的投标报价编制

建筑企业要在激烈的投标竞争中取胜，不但要考虑企业自身的优势和劣势，还要按照工程项目的特点、施工条件等来确定投标的策略，特别要掌握目前常用的工程量清单计价下的投标报价编制技巧。     

谈在校大学生求职前的准备

大学生在校期间,怎样才能为毕业后顺利地谋求到适合自己的职业做好必要的准备,已经成为“双轨”之后在较大学生十分关心的问题。笔认为,应该从三个方面去努力：一是要从政治经济形势上注意了解和预测大学生的就业形势,做到心中有数;二是要了解社会上对毕业生的基本要求,找出自己的差距,明确努力的方向;三是从社会需要出发,努力适应其需要,力求化短为长。     

X射线荧光光谱法分析硅锰合金中的硅、锰、磷

对硅锰合金进行熔融制片，使用X 射线荧光光谱仪对硅锰合金进行分析，选择合适的分析条件，确定仪器最佳参数，建立校准曲线。试验证明，本方法测量结果与经典化学方法结果相吻合，且本方法分析速度快，结果准确，能够满足实际生产需要，可为相关部门提供参考。     

Preparation

A product set of pure strategies is a prep set (‘prep’ is short for ‘preparation’) if it contains at least one best reply to any consistent belief that a player may have about the strategic behavior of his opponents. Minimal prep sets are shown to exist in a class of strategic games satisfying minor topological conditions. The concept of minimal prep sets is compared with (pure and mixed) Nash equilibria, rationalizability, minimal curb sets, and persistent retracts.     

Expatriate adjustment as a multifaceted phenomenon: individual and organizational level predictors

A conceptual model is proposed that identifies critical antecedents of expatriate adjustment. Adjustment is conceptualized as the degree of fit between the expatriate manager and the environment, both work and socio-cultural. Adjustment is marked by both reduced conflict and increased effectiveness. As a multidimensional phenomenon, expatriate adjustment can be identified in psychological, socio-cultural and work domains. The model predicts that psychological and socio-cultural adjustment are the most immediate predictors of work adjustment. In this paper, it is asserted that the success of the expatriation process depends not only on the expatriate manager's competencies and skills, but also on organizational (both parent-company and local-unit) support and assistance prior to and during the assignment. Various international human resource management models are utilized to examine the organizational level antecedents of expatriate adjustment. Managerial resourcefulness, acculturation attitudes, personality dimensions and coping strategies are discussed in relation to individual predictors, whereas MNCs' international structure, value orientation, organizational life-cycle, diversity training, strategic planning and socialization are proposed as organizational predictors of expatriate adjustment.