考虑物化资本劳动消耗的生产率研究

在利用投入产出表计算生产率时,是否考虑物化资本对劳动的消耗将对结果产生影响。物化资本消耗包括中间消耗和固定资本消耗。本文以1997年投入产出表测算劳动生产率,并比较了各种测算方法的差异

Research on the Criteria of the Choosing of Leading Sectors

主导产业是区域经济增长的动力，它通过一系列的扩散和带动作用促进区域经济发展。迄今为止，国内外学者对主导产业的选择进行了大量的研究，主要表现在主导产业选择指标体系的建立和综合评价方法的选择上。但是，不同的学者选择的基准不同、测度基准的方法也有所不同，从而使得主导产业选择结果差异较大。那么，不同基准之间有何联系？怎样准确测度基准？回答这些问题，对于正确选择主导产业具有重要意义。本文将尝试利用投入产出分析法来研究这些问题。 本文的分析思路是将主导产业选择基准分为需求方面和供给方面两个部分。需求的基准包括后向关联、需求收入弹性、比较优势。在这一部分我们将会看到后向关联、规模（最终需求）、需求收入弹性...Leading sector is the locomotive of regional economic growth， promoting the development of regional economy through its serial diffusing and driving function. Heretofore，the Scholars from internation and domestic have made many researches in this subject. All of them can be focused in constituting the system of indexes and in the choicing methods of synthesize evaluation. But different researcher...学位：经济学博士院系专业：经济学院计划统计系_统计学学号：B20041001

加权关联度系数的经济含义及其应用

本文比较了关联度系数和加权的关联度系数的经济含义,并推导出加权的关联度系数就是一种弹性;介绍了加权的关联度系数在关键部门的选择中的一个应用

绿色木霉EU2-77纤维素酶对园艺废弃物的酶解特性分析

以溶剂萃取法对园艺废弃物进行预处理,利用本实验室自筛绿色木霉(Trichoderma viride)EU2-77产生的纤维素酶对预处理前后的园艺废弃物进行酶解.结果表明,经过预处理的园艺废弃物的酶解产物总还原糖收率为未预处理的22.55倍.绿色木霉EU2-77纤维素酶分别与商业菌株里氏木霉(T.reesei)RUT C30纤维素酶和商业酶进行酶解性能比较,得出该酶酶解总还原糖收率(316.4 mg/g)高于商业菌株里氏木霉RUT C30纤维素酶(232.4 mg/g)和商业酶Celluclast1.5L(239.6 mg/g);而与商业酶Celluclast 1.5L+Novozym188混合液酶解能力(331.6 mg/g)以及Celic Ctec酶解能力(303.2 mg/g)相差不大.绿色木霉EU2-77产生的纤维素酶可望在园艺废弃物的回收利用方面得到推广应用

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

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 $p\to \bar\nu K^+$ 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 $p\to \bar\nu K^+$ 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 $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel

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

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 $p\to \bar{\nu} K^+$ 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 $p\to \bar{\nu} K^+$ is 36.9% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies