Considering both the characteristics of construction scheme evaluation and the lack of consideration of index proportionality after introducing comprehensive evaluation of independent perspectives into construction sc...Considering both the characteristics of construction scheme evaluation and the lack of consideration of index proportionality after introducing comprehensive evaluation of independent perspectives into construction scheme evaluation, a construction scheme evaluation model of independent perspectives was put forward through the study and optimization of comprehensive evaluation of independent perspectives. The feasibility and rationality of the optimized method were illustrated through a case study and the evaluation results were compared between the optimized method and non-optimized method. The optimized method has the practical value in construction scheme comparison.展开更多
Shandong is a culturally powerful province with excellent natural geographical condition and the warm temperate monsoon climate creates abundant benefits to the agricultural development there.In 2009,Shandong administ...Shandong is a culturally powerful province with excellent natural geographical condition and the warm temperate monsoon climate creates abundant benefits to the agricultural development there.In 2009,Shandong administration bureau of Yellow River economic development held the forum on related issues of national new countryside industry office planning to build economic forest base around the Yellow River in Shandong.The primary intention was settled and the construction of Shandong Economic Forest was formally started.Although impressive progress has been achieved in recent years,there also exists potential problems in the construction of economic forest,among which heavy metal pollution and soil acidification are the worst,causing huge damage to the physiological health of the consumers of economic forest.The writer proposes the countermeasures against standardization construction of economic forest.Scientific management is to be adopted to improve the professional skills of the employees in economic forest and brand innovation should be emphasized to quicken the quality certification of the products of economic forest.Besides,standard production demonstration is to be created and promoted in order to boost scale development.Furthermore,mechanism innovation is also to be stressed and forestry specialized cooperation organizations should be largely supported.展开更多
The commissioning of Southern Hami-Zhengzhou ±800 kV UHVDC transmission project has important significance to heighten operation reliability, transfer capability and supply electric ability of Henan power grid. H...The commissioning of Southern Hami-Zhengzhou ±800 kV UHVDC transmission project has important significance to heighten operation reliability, transfer capability and supply electric ability of Henan power grid. However, short circuit currents of 500 kV buses in the Center of Henan are almost close to the operation upper limitation. In order to decrease the short circuit currents effectively, it’s necessary to strengthen the network structure of Center of Henan power grid and calculate short circuit currents. Two schemes of strengthening the network structure of Center of Henan power grid are studied. The calculated values of short circuit currents of some important 500 kV buses in the two schemes are still bigger than excepted. According to the latest Plan of State Grid, Yubei UHV substation and Zhumadian UHV substation located in Henan power grid. The calculated values of short circuit currents of some important 500 kV buses with the commissioning of Yubei UHV and Zhumadian UHV are qualified. So, reasonable network structure with UHV is suitable to heighten transfer capability and supply electric ability of Henan power grid.展开更多
The bounds on the discrepancy of approximate solutions constructed by Gedunov's scheme to IVP of isentropic equations of gas dynamics are obtained, Three well-knowu results obtained by Lax for shock waves with sma...The bounds on the discrepancy of approximate solutions constructed by Gedunov's scheme to IVP of isentropic equations of gas dynamics are obtained, Three well-knowu results obtained by Lax for shock waves with small jumps for general quasilinear hyperbolic systems of conservation laws are extended to shock waves for isentropic equations of gas dynamics in a bounded invariant region with ρ=0 as one of boundries of the region. Two counterexamples are given to show that two iuequalities given by Godunov do not hold for all rational numbers γ∈(1, 3]. It seems that the approach by Godunov to obtain the forementioned bounds may not be possible.展开更多
目的 基于循证医学,构建一套适用于进行性纤维化间质性肺病患者的规范化肺康复训练方案,丰富肺康复指导的系统教育方案内涵,为临床康复护理提供科学指导。方法 计算机检索中国WanFang数据库、中国知网数据库(CNKI)、维普数据库(VIP)、...目的 基于循证医学,构建一套适用于进行性纤维化间质性肺病患者的规范化肺康复训练方案,丰富肺康复指导的系统教育方案内涵,为临床康复护理提供科学指导。方法 计算机检索中国WanFang数据库、中国知网数据库(CNKI)、维普数据库(VIP)、中国生物医学文献数据库(CBM)、PubMed、Embase、Cochrane Library、Web of Science数据库文献及指南网站,以循证医学为指导,通过文献回顾分析,采用《临床指南研究与评价系统》(Appraisal of Guidelines for Research and Evaluation,AGREEⅡ)评价指南质量及澳大利亚JBI(Joanna Briggs Institute)循证卫生保健中心开发的文献质量评价工具对随机对照试验、系统评价、类实验文献进行质量评价,对纳入的文献进行全文阅读及等级划分,以汇总最佳证据,拟定进行性纤维化间质性肺病患者肺康复训练方案初稿,最后结合专家会议和专家咨询结果,对方案初稿进行可用性评鉴,最终修订完善方案。结果 经文献质量评价及筛选后,共纳入30篇文献,其中指南与专家共识3篇,随机对照试验文献16篇,系统评价文献6篇,类实验文献5篇。方案内容包括训练评估、呼吸训练、运动训练、健康教育、社会心理干预、营养支持6个一级指标。结论 该研究构建的方案结果可靠,其规范性、科学性和安全性高,能够为进行性纤维化间质性肺病患者临床康复护理工作提供参考。展开更多
文摘Considering both the characteristics of construction scheme evaluation and the lack of consideration of index proportionality after introducing comprehensive evaluation of independent perspectives into construction scheme evaluation, a construction scheme evaluation model of independent perspectives was put forward through the study and optimization of comprehensive evaluation of independent perspectives. The feasibility and rationality of the optimized method were illustrated through a case study and the evaluation results were compared between the optimized method and non-optimized method. The optimized method has the practical value in construction scheme comparison.
文摘Shandong is a culturally powerful province with excellent natural geographical condition and the warm temperate monsoon climate creates abundant benefits to the agricultural development there.In 2009,Shandong administration bureau of Yellow River economic development held the forum on related issues of national new countryside industry office planning to build economic forest base around the Yellow River in Shandong.The primary intention was settled and the construction of Shandong Economic Forest was formally started.Although impressive progress has been achieved in recent years,there also exists potential problems in the construction of economic forest,among which heavy metal pollution and soil acidification are the worst,causing huge damage to the physiological health of the consumers of economic forest.The writer proposes the countermeasures against standardization construction of economic forest.Scientific management is to be adopted to improve the professional skills of the employees in economic forest and brand innovation should be emphasized to quicken the quality certification of the products of economic forest.Besides,standard production demonstration is to be created and promoted in order to boost scale development.Furthermore,mechanism innovation is also to be stressed and forestry specialized cooperation organizations should be largely supported.
文摘The commissioning of Southern Hami-Zhengzhou ±800 kV UHVDC transmission project has important significance to heighten operation reliability, transfer capability and supply electric ability of Henan power grid. However, short circuit currents of 500 kV buses in the Center of Henan are almost close to the operation upper limitation. In order to decrease the short circuit currents effectively, it’s necessary to strengthen the network structure of Center of Henan power grid and calculate short circuit currents. Two schemes of strengthening the network structure of Center of Henan power grid are studied. The calculated values of short circuit currents of some important 500 kV buses in the two schemes are still bigger than excepted. According to the latest Plan of State Grid, Yubei UHV substation and Zhumadian UHV substation located in Henan power grid. The calculated values of short circuit currents of some important 500 kV buses with the commissioning of Yubei UHV and Zhumadian UHV are qualified. So, reasonable network structure with UHV is suitable to heighten transfer capability and supply electric ability of Henan power grid.
基金Project supported by National Natural Science Foundation of China.
文摘The bounds on the discrepancy of approximate solutions constructed by Gedunov's scheme to IVP of isentropic equations of gas dynamics are obtained, Three well-knowu results obtained by Lax for shock waves with small jumps for general quasilinear hyperbolic systems of conservation laws are extended to shock waves for isentropic equations of gas dynamics in a bounded invariant region with ρ=0 as one of boundries of the region. Two counterexamples are given to show that two iuequalities given by Godunov do not hold for all rational numbers γ∈(1, 3]. It seems that the approach by Godunov to obtain the forementioned bounds may not be possible.
文摘目的 基于循证医学,构建一套适用于进行性纤维化间质性肺病患者的规范化肺康复训练方案,丰富肺康复指导的系统教育方案内涵,为临床康复护理提供科学指导。方法 计算机检索中国WanFang数据库、中国知网数据库(CNKI)、维普数据库(VIP)、中国生物医学文献数据库(CBM)、PubMed、Embase、Cochrane Library、Web of Science数据库文献及指南网站,以循证医学为指导,通过文献回顾分析,采用《临床指南研究与评价系统》(Appraisal of Guidelines for Research and Evaluation,AGREEⅡ)评价指南质量及澳大利亚JBI(Joanna Briggs Institute)循证卫生保健中心开发的文献质量评价工具对随机对照试验、系统评价、类实验文献进行质量评价,对纳入的文献进行全文阅读及等级划分,以汇总最佳证据,拟定进行性纤维化间质性肺病患者肺康复训练方案初稿,最后结合专家会议和专家咨询结果,对方案初稿进行可用性评鉴,最终修订完善方案。结果 经文献质量评价及筛选后,共纳入30篇文献,其中指南与专家共识3篇,随机对照试验文献16篇,系统评价文献6篇,类实验文献5篇。方案内容包括训练评估、呼吸训练、运动训练、健康教育、社会心理干预、营养支持6个一级指标。结论 该研究构建的方案结果可靠,其规范性、科学性和安全性高,能够为进行性纤维化间质性肺病患者临床康复护理工作提供参考。
