三原子分子离子的光激发和光解离动力学研究

综述了近几年来关于三原子分子离子(CS+2, SO+2, CO+2)的光激发和光解离动力学研究结果.实验是在射流气束条件下进行的.首先利用一束电离激光使中性三原子分子通过共振增强多光子电离制备出振动态选择的三原子分子离子,再用一束或两束解离激光激发获得母体分子离子的光解离谱(母体离子的凹陷谱和碎片离子的增强谱).由此研究了三原子分子离子(CS+2, SO+2, CO+2)电子态的光激发和光解离动力学.     

关于深化应用ERP的思考

ERP在我国完成广泛推广与应用后,目前已逐步进入深化应用阶段,深化应用ERP将是众多企业面临的新课题。对ERP深化应用规划以及实施对策和方法进行了探讨,供企业参考借鉴。     

以小组协作形式构建分层教学

以小组协作形式构建分层教学就是根据学生现有的知识,能力水平和潜力倾向把学生科学地分成几组各自水平相近的群体并区别对待,这些群体在教师恰当的分成策略和相互作用中得到最好的发展和提高。又称分组教学能力分组,它是将学生按照智力测验分数和学业成绩分成不同水平的班组,教师根据不同的班组的实际水平进行教学。     

对人民币汇率进一步研究

本文首先分析了人民币汇率和总需求之间的关系。然后建立了一个人民币汇率理论模型。由此分析得出人民币升值是由人民币自身价值所决定的，最后，我们指出人民币贬值不利于我国西部大开发。     

审稿人对公开审稿人身份的态度调查分析

调查分析了《中华结核和呼吸杂志》审稿人对公开审稿人身份的态度。发现72．6％的审稿人认为杂志没有必要公开审稿人的身份，认为随着社会开放程度的不断提高今后肯定和有可能公开审稿人身份的分别占20．1％和45．1％，认为今后肯定不会公开审稿人身份的占34．8％。对公开审稿人身份的可能性以及提高审稿的质量和公正性进行了讨论。     

Selective revealing in open innovation processes: The case of embedded Linux

This paper provides a quantitative study (N = 268) of patterns of free revealing of firm-developed innovations within embedded Linux, a type of open source software (OSS). I find that firms, without being obliged to do so, contribute many of their own developments back to public embedded Linux code, eliciting and indeed receiving informal development support from other firms. That is, they perform a part of their product development open to the public—an unthinkable idea for traditionally minded managers. Such openness obviously entails the challenge of protecting one's intellectual property. I find that firms address this issue by revealing selectively. They reveal, on average, about half of the code they have developed, while protecting the other half by various means. Revealing is strongly heterogeneous among firms. Multivariate analysis can partly explain this heterogeneity by firm characteristics and the firm's purpose behind revealing. An analysis of reasons for revealing and of the type of revealed code shows that different types of firms have different rationales for openness. Implications for management are that the conflict between downsides and benefits of openness appears manageable. Provided selective revealing is practiced deliberately, the opportunities of open development dominate.     

二元关系运算性质的进一步研究

本文研究了二元关系的性质与运算之间的联系,探讨了具有某些性质的二元关系的逆运算、补运算、交运算、并运算、差运算、复合运算以及闭包运算结果是否仍保持相应的性质。     

液体表面张力系数测量的进一步探讨

用拉脱法测量液体表面张力系数,可同时测量接触角的大小,对两种特殊的物理现象进行分析,讨论现象与实验参数的关系.     

对信息涵义的再认识

在已往研究者对信息多角度、多层次观点分析的基础上,对信息的若干说明、解释或定义进行了分析、归纳和总结,从众多研究观点中梳理出信息五个方面的基本内涵,进而从新视角把信息概念从纯粹的科学概念中释放出来.     

On a special form of the cauchy-schwarz inequality

This paper deals with questions concerning a transformation-based form of the Cauchy-Schwarz inequality (f,f)(g,g) ? (f,g)(g,f) where f and g are complex vectors. In the case of a linear transformation restricted to be real a refinement of the inequality can be given. The classes of transformation matrices are defined which impose the equality signs in the above inequalities and thus minimize their left hand sides. A diagonalization procedure provides the determination of a special canonical solution to the desired linear transformation and enables the explicit definition of the remaining degree of freedom.     

CAS to Further Strengthen Cooperation with the EU

In light of the concept that scientific knowledge should serve humanity, CAS is open to the whole world and will further cooperate with the European Union in various fields, asserts CAS President Lu Yongxiang.     

滤棒添加剂对卷烟主流烟气中苯酚和巴豆醛等释放量的影响

为掌握滤棒添加剂对卷烟主流烟气中苯酚和巴豆醛等有害成分释放量的影响,采用不同比例的三乙酸甘油酯、活性炭和植物颗粒成型滤棒和卷制卷烟,通过标准方法进行相关评价。结果表明:(1)滤棒中三乙酸甘油酯施加量达到10%时,苯酚释放量最低;滤棒不同添加剂对巴豆醛释放量的影响不明显。(2)随着三乙酸甘油酯施加量的增加卷烟感官质量逐步增大,当施加量达到8%时达到最大;随着活性炭和植物颗粒施加量的增加卷烟感官质量逐步增大。