8 research outputs found

    公共服务水平与经济发展水平相适应机制建设的本土探索——厦门市的案例研究

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    本文是厦门市社会科学调研课题资助项目——“厦门建立公共服务水平与经济发展水平相适应机制的研究“课题报告(全文5万余字)的摘要。该研究报告对公共服务与经济发展二者之间的相关性及其影响程度进行理论分析与实证检验;利用“公共服务——经济发展动态均衡模型“,对“十二五“时期厦门市公共服务与经济发展的相关性做出预测;尝试构建公共服务水平与经济发展水平相适应的机制;从建设服务型政府、确立最优公共服务水平、明确公共服务合理支出以及保障公共服务有效供给等方面提出了关于厦门市公共服务水平与经济发展水平协调发展的对策思考。2011年度厦门市社会科学调研课题资助项目;厦门大学“985工程”-公共管理重点学科;厦门大学“211工程”三期-“公共政策与政府治理”建设项

    RAPD Analysis of the Clustering Variation of Agarucus bisporus and Cloning of the Different DNA Fragment

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    通过双孢蘑菇正常菌株及其丛生变异菌株基因组DNA的RAPD研究,找到一个与双孢蘑菇丛生变异可能相关的DNA片段,将其克隆并测序.GenBank查询结果表明该片段可能的部分开放读框(ORF)与多种生物的二氢硫辛酰胺脱氢酶(DLDH)的部分氨基酸序列有较高的同源性,由此提出了一个双孢蘑菇丛生变异的分子机理假设.A DNA fragment possibly related to the clustering variation of A.bisporus was found by RAPD of the genomic DNA of healthy strains and their clustering variation ones, and it was cloned and sequenced. The results of GenBank searching suggested that the possible partial ORF of the fragment had a high homology with part of amino acids of dihydrolipoamide dehydrogenase (DLDH) from several organisms, so a molecular mechanism model for the clustering variation of A.bisporus was supposed.福建省自然科学基金(B0110032)资

    MOLECULAR GENETIC STUDY ON THE PEDIGREE OF HYBRID STRAIN AS2796 OF AGARICUS BISPORUS

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    应用PCR和凝胶电泳等技术,对双孢蘑菇杂交菌株As2796及其亲本和子代作分子遗传标记跟踪分析,结果如下: 1) 总DNA的RAPD分析表明,随着遗传代数的增加,杂种子代和出发异核体亲本间的遗传差异逐渐增大; 2) mtDNA的酶切图谱表明,亲本8213及其杂交子代具有相同的基因型,表明双孢蘑菇的mtDNA呈单亲遗传; 3) Est同工酶的PAGE图谱表明, 结合了亲本02高产特征和8213优质特征的杂交子代具有两个亲本的标记带型,证明Est同工酶标记是双孢蘑菇新菌株特性预测或鉴定的有效指标。The pedigree of the hybrid A.bisporus strain As2796 was analyzed through molecular genetic markers tracking. The results were as follows: 1)RAPD analysis of total DNA showed that with the addition of the number of genetic generations, the genetic differences between hybrid offspring and their original heterokaryotic parents increased. 2)The patterns of mtDNA digested by endonucleases showed that the hybrid offspring had the same mitochondrial genotype as the parent 8213, indicating that the mtDNA of A.bisporus was inherited from one of the parents. 3)PAGE patterns of esterase isozyme(Est) showed that the hybrid offsprings which combined both the characteristic of high yield of parent 02 and good quality of 8213 had the same marked bands of their parents. The Est isozyme marker was found to be an effective index of new strains' characteristic prediction or determination of A.bisporus.福建省自然科学基金重点资助项目!(C9820005

    The Effect of Supporters and Ruthenium Contents on the Reaction Activity for Ammonia Synthesis

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    传统的熔铁型合成氨催化剂的使用条件相当苛刻(450℃,1.5~3.5x105PA),近20年来国外一直致力于开发温和条件下使用的钌基合成氨催化剂[1,2],并已取得了相当的进展[3],可望在不久的将来完全实现工业化,代替铁基合成氨催化剂,成为一种高效...The effects of different supporters, such as active carbon, γ Al 2O 3、NaX molecular sieve, silica gel, Sm 2O 3, CeO 2, Y 2O 3 and C 60 (6%), and contents (2% ̄6%) of ruthenium on reaction activity of ruthenium based catalysts for ammonia synthesis have been studied.The activity for ammonia synthesis of Ru based catalysts supported by different supporters decreased in the sequence of C 60 >Sm 2O 3>CeO 2>Y 2O 3>γ Al 2O 3>NaX>AC>silica gel, and the optimum content of ruthenium is 4 %, under 1×10 5 Pa; the Ru K/C 60 catalyst has the highest activity for ammonia synthesis at 350 ℃.Also, the Ru based catalysts have been characterized by SEM.国家自然科学基金;固体表面物理化学国家重点实验室资

    基于人眼视觉特性的数字相机自动曝光方法

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    本发明提出了一种基于人眼视觉特性的数字相机自动曝光方法;采用该方法能够得到理想的曝光时间参数,从而实现对不同场景的准确曝光。该方法利用图像清晰度、色彩饱和度以及亮度等评价因素模拟视觉系统对事物的感官特性,建立符合人眼视觉习惯的曝光评价函数。根据不同场景的色彩属性,判定曝光评价参考,取得理想的曝光时间参数,对不同特征属性场景图像有着良好的曝光调节效果,能够准确地反映人眼视觉系统对事物的客观描述。该方法还进一步给出了优化的曝光时间调节算法,利用标定的曝光增量曲线进行最优曝光量搜索,曝光调节速度较快

    JUNO Sensitivity on Proton Decay pνˉK+p\to \bar\nu K^+ Searches

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    The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in pνˉK+p\to \bar\nu K^+ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via pνˉK+p\to \bar\nu K^+ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is 9.6×10339.6 \times 10^{33} years, competitive with the current best limits on the proton lifetime in this channel

    JUNO sensitivity on proton decay pνK+p → νK^{+} searches

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    JUNO sensitivity on proton decay p → ν K + searches*

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    The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the pνˉK+ p\to \bar{\nu} K^+ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via pνˉK+ p\to \bar{\nu} K^+ is 36.9% ± 4.9% with a background level of 0.2±0.05(syst)±0.2\pm 0.05({\rm syst})\pm 0.2(stat) 0.2({\rm stat}) events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is 9.6×1033 9.6 \times 10^{33} years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies
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