自然伽马能谱测井谱解析方法研究

自然伽马能谱测井是重要的核测井方法之一，其地面信息处理系统的关键是实测谱解析技术。低分辨率是自然伽马能谱测井仪的固有弱点，且测井过程中信噪比较低，造成测井置信度不高。从自然伽马能谱测井原理出发，通过中海油实验数据处理后获得的放射性核素的标准计数率谱，对自然伽马能谱测井4种传统数据处理方法的优劣进行了对比，初步探讨了将灵敏度高、空间分辨率好的直接解调方法移植到自然伽马能谱测井谱解析中，为自然伽马能谱测井谱解析方法的选择提供了依据。     

试论降清汉族知识人在清初的军事贡献

尽管备受时人和后世诟病,但降清汉族知识人凭借其丰富的儒家知识和治国经验,无论是在追剿李自成农民军残余方面、打击南明政权方面,还是在清初镇压地方社会叛乱,维护社会秩序等方面均发挥了积极的军事谋略作用。肯定他们的客观作用,对于准确把握明末清初的形势及清朝统一多民族国家的建立及巩固具有重要意义。在参与方式上,他们或出谋划策,或直接投身战斗之中,从而为清初的社会稳定,政权巩固发挥了积极作用。     

基于DDS和FPGA的多功能信号发生器设计

根据直接数字频率合成技术,以FPGA为核心,设计了一种便携式多功能信号发生器,可产生正弦波、方波、三角波、锯齿波等信号。通过仿真及硬件实验表明,该信号发生器具有信号频率误差小、分辨率高、体积小、质量轻等优点。     

The moderating effect of foreign direct investment intensity on local firms' intangible resources investment and performance implications: A case from China

Foreign direct investment (FDI) has been known to generate positive externalities to increase the productivity and competitiveness of domestic industries through knowledge and technology spillover. This study focuses on the indirect effect of FDI by investigating whether FDI intensity benefits local firms by enhancing the local intellectual property rights (IPR) environment. We argue that due to the inadequate IPR environment in emerging economies, local firms' intangible resources investment can be negatively related to firm performance. Further, we suggest that FDI intensity can improve the local IPR environment, thereby enhancing the appropriability of local firms' intangible resources investment. We find empirical evidence to support our arguments by examining 70 semiconductor firms in China from 1999 to 2006, and we discuss the theoretical and practical implications of the impact of FDI intensity on the local IPR environment.     

侗族对丰富中华文化宝库的贡献

中国是以华夏族为核心,逐渐发展成的一个多民族的国家。在长期的历史发展过程中,各民族不断融合、同化和汇聚,发展成为当今的56个民族,其中55个是少数民族。侗族,作为中华民族大家庭中56个成员之一,她和各族人民一道,共同缔造了光辉灿烂的中华文化。本文着重从物质文化和精神文化两个方面来阐述历史上侗族对丰富中华文化宝库的贡献。     

Rejoinder to 'Ahmed, M.S. (1998). A note on regression-type estimators using multiple auxiliary information.'

In the estimators t ₃ , t ₄ , t ₅ of Mukerjee, Rao & Vijayan (1987), b _{y x} and b _{y z} are partial regression coefficients of y on x and z , respectively, based on the smaller sample. With the above interpretation of b _{y x} and b _{y z} in t ₃ , t ₄ , t ₅ , all the calculations in Mukerjee at al. (1987) are correct. In this connection, we also wish to make it explicit that b _{x z} in t ₅ is an ordinary and not a partial regression coefficient. The 'corrected' MSEs of t ₃ , t ₄ , t ₅ , as given in Ahmed (1998 Section 3) are computed assuming that our b _{y x} and b _{y z} are ordinary and not partial regression coefficients. Indeed, we had no intention of giving estimators using the corresponding ordinary regression coefficients which would lead to estimators inferior to those given by Kiregyera (1984). We accept responsibility for any notational confusion created by us and express regret to readers who have been confused by our notation. Finally, in consideration of the above, it may be noted that Tripathi & Ahmed's (1995) estimator t ₀ , quoted also in Ahmed (1998), is no better than t ₅ of Mukerjee at al. (1987).     

P2P技术带来的版权问题与对策研究

上个世纪末以来,以Napster为代表的P2P软件的迅速兴盛,在导致P2P技术迅猛发展并打破了传统的以服务器为中心的互联网格局的同时,在版权领域也引发了一场又一场侵权与反侵权的较量。我们需要在详细解读P2P技术的基础上,从与P2P技术有关的行为性质入手,对哪些属于不侵权、哪些是直接侵权、哪些是间接侵权,进行界定,对P2P技术带来的版权侵权问题和对策作出较为全面和详细的研究。     

我国现行收入分配制度的理论依据辨析

我国现行收入分配制度的理论依据应当是多层次的。生产要素的共同努力是财富创造的源泉;劳动是价值的源泉,但劳动创造价值增加了新的内涵;财产权利是收入分配的前提条件和经济依据。     

中国共产党对中国政治现代化的贡献

中国共产党对中国政治现代化的贡献主要体现在四个方面:国家独立和民族解放的实现,多党合作的现代 政党政治模式的成功确立,强大的中央政府的建立和现代化的国家体制的建立。     

村民直选：村心自治的关键所在——海原县村民自治状况调查研究报告

调研报告通过对海原县贾塘乡后塘村村民自治状况的问卷调查和抽样调查 ,探讨了回族贫困社区村民直选过程中的情况、问题、原因和对策 ,为推进少数民族农村贫困社区的民主化进程提供了可操作性的建议。